global-geotech-brochure[1]

PRODUCT CATALOGUE 04/06

Thank you for your interest in our company and our products.

Global Geotech designs, manufactures and supplies soil and rock samplingequipment for the geotechnical and geo-environmental industries. We arefocusing our efforts on improving existing drilling tools by better design, orby using better materials, as well as introducing new, innovative products tothe industry.

As manufacturing our own equipment, Global Geotech, as our name sug-gests, sources and supplies geotechnical equipment on a worldwide basis.

This leaflet briefly outlines some new products available from our company,but please do not forget we can offer a much broader range of productsthan illustrated here.

If you require any information about our products or their applications,please do not hesitate to contact us. We will be more than happy to helpwith technical advice, consultation, and training.

Product/ServiceInformation

Organization

Soil & RockSampling Equipment

Phone: +44 (0)1422 373213Fax: +44 (0) 1422 370864Email: [email protected]

Steel Casings for Rotary andPercussive Drilling

Shell & Auger Casing & ToolsCore Barrels –DCDMA, Metric

& WirelineDrill RodsT.C. and Diamond Drill Bits and

Core BitsSteel Tooth and T.C.I. Tricone

Roller BitsDrag BitsStabiliser SubsNon-Return ValvesSPT EquipmentUndisturbed Soil Sampling

EquipmentU100, Piston Samplers and

Shelby TubesMini Rigs for Soil SamplingWindow and Windowless Sample

TubesPlastic LinersFoot Clamps, Bowls and Slips,

Casing ClampsHeavy Duty Pipe and Chain

WrenchesAdaptorsInstallation Equipment –PVC

pipe, piezometers, wellcaps etcBorehole packersRecovery tools

Product Range

Global Geotech is a specialist manufacturer andsupplier of high quality earth drilling, boring, samplingand in-situ ground testing equipment, delivering toworldwide markets. Our customers includegeotechnical and environmental consultants, civilengineering companies, drilling contractors, mineraland hydrogeologists, both large and small.

Our uncompromising commitment to quality products,constant innovation and superior customer serviceallows us to meet the highest performance standardsand satisfy the requirements of the world's mostdemanding civil engineering and exploration projects

Our product range includes equipment for obtaininggeological samples and carrying out in-situ tests in awide range of geological formations, from the softestsoils to the hardest rocks:

Undisturbed soil sampling equipment - piston samplers,shelby tubes and U100 samplersIn-situ soil testing equipment - dynamic probe, standardpenetration test, shear vane apparatus, hand augers, dipmeters, piezometersPercussive soil coring - window samplers and drive-in tools

Mini-tracked drive sampling rigs - the new "GEO" rig

Rotary coring equipment - core barrels, drill rods and casing

Diamond drilling equipment - core bits and drill bits innatural, synthetic diamond and PDC typesDown-the-hole hammers, bits and overburden drillingsystemsWaterwell drilling equipment - shell and auger casing andtoolsOpen hole-drilling - tricone rock bits and drag bits

Borehole packers - for permeability testing and grouting

Sub adaptors, recovery tools, casing clamps, water swivelsand hoistsSpecial drilling products tailored to customer requirements

The company is located in Elland, West Yorkshire asmall town in the north of England, at the foot of thePennine hills. The nearest large cities are Manchester,40 miles to the west, and Leeds 20 miles to the east.

Situated just 1 mile from the motorway network and40 minutes away from Manchester Airport, we are wellplaced to respond rapidly to your enquiries and toexpedite delivery of your equipment, either nationallyor internationally.

Why Global Geotech?

Global Geotech offers an absolute commitment toquality products combined with a personal "dowhatever it takes" approach to customer service thatsets us apart from the competition and makes us yourbest choice for all kinds of drilling solutions. Here aresome of our qualities:-

Experienced engineers and technical staff withdecades of collective experience.Continuous field testing and development of ourproducts to understand and solve the problems

faced by field engineers every day.Rigorous quality controlsKnowledgeable, friendly sales staff who aretrained and capable of dealing with any situationClose, personalized relationships with everycustomerA commitment to on-time delivery every time anorder is placed.

GLOBAL GEOTECH OFFERS MORE THAN JUSTA DRILLING TOOL!.

Global Geotech, Unit C Lowfields Business Park, Old Power Way, Elland, HX5 9DE, U.K.Tel: +44 (0)1422 373213 Fax: +44 (0)1422 370864 Email: [email protected]

© 2005 Global Geotech. All Rights Reserved

Diamond and T.C. Bits

Global Geotech manufactures and supplies a complete range of diamond bits, casing shoes, reamingshells to suit all popular core barrels and casing types. These may be surface set, impregnated,sawtooth or in various PDC forms, depending on the application.

Surface Set Diamond BitsThese are mostly suited to soft formations or using low powered drills, asthey operate more effectively than impregnated bits at low surface speeds.Available with different stone sizes, face profiles and waterwayarrangements to suit different conditions. All supplied with the highestquality natural drilling diamonds.

Impregnated Diamond BitsImpregnated bits can drill a broad range of formations from the softest tothe hardest rocks. Manufactured with very small, high quality syntheticdiamonds, mixed evenly through a metal alloy matrix. All bits have T.C.and diamond gauge protection. Available in 8 standard matrix types to suitrock formation.

Sawtooth Diamond BitsA very aggressive bit design for rapid penetration in soft to medium rock types. Theteeth are shaped from tungsten carbide matrix, with their cutting edges reinforcedwith natural carbonado and West African type diamonds. These bits function in muchthe same way as T.C. bits but with much superior wear resistance.

PDC bitsPolycrystalline diamond cutters are set on the crown giving a very long working life,very fast penetration and high percentage core recovery in soft to hard rockformations. The bit may be used with air, mud , or foam flushing.

Cube set bitsThese bits are set with thermally stable polycrystalline diamond cube-shapedcutters, forming a V-shaped cutting profile on the surface of the crown. Thesebits are extremely tough and will cope with massive or broken formationsfrom soft to hard, high abrasive groups.

Carbotec T.C. bitsThese bits consist of tungsten carbide fragments fused together to form acrown with multiple cutting edges. They are particularly effective for cutting informations which are highly fractured or contain loose pebbles, wherestandard T.C., bits would be susceptible to chipping or impact damage.

Casing shoes and Reaming ShellsAvailable in both tungsten carbide and diamond forms to suit most types of casing and core barrels.

Conventional Double Tube Core Barrels

Wireline Core Barrels

BIT DIMENSIONS: IMPERIAL SERIES

Conventional Double Tube Core Barrels

BIT DIMENSIONS: METRIC SERIES

These are identical to the standard Q series barrels but incorporate a third, split inner tube. This can be pumped out of theinner tube after retrieval, allowing the core to be examined in its in-situ state. Generally used when high quality core isrequired in broken, fractured formations. The use of a third tube requires the bits to cut slightly smaller diameter core thanstandard Q series barrels.

Wireline core barrels are primarily used when coring to greater depths, mainly because they eliminate the need to couple anduncouple the rod string each time the core is retrieved. An overshot device is dropped on a cable and directly couples onto theinner tube assembly, allowing fast retrieval of the core after each core run. Available in DCDMA sizes, A, B. H. Q. and P. Ageotechnical version of the wireline system is also available in S size, giving cores in excess of 100 mm.

TT Series Core Barrels

These are ultra thin wall core barrels available in diameters 46 and 56mm, suitable for underground mining operations. Thesecore barrels require relatively light feed pressure and torque, which means that they cut effectively at high rotation speedsusing lightweight diamond drills.

T2 Series Core Barrels

T6 Series Core Barrels

The T6 series is a continuation of the T2 series, but of a sturdier design, and available in larger diameters, 76, 86, 101, 116,131 and 146mm, suitable for general exploration purposes. Water, mud or air can be used as the flushing medium, but whenusing air, oversized bits and head couplings are recommended to allow sufficient space for the cuttings to clear. Designed foruse in conjunction with metric casing. The T6-H core barrel is the imperial sized equivalent of the T6-101, virtually identical indesign, but with a slightly smaller O.D. enabling it to fit inside HW or HX casing.

T6S Series Core Barrels

These core barrels have a split innert tube and are intended for use in geotechnical work in very loose formations. The splitinner tube combined with face discharge bits gives an undisturbed sample. Suitable for mud flushing and with minormodifications for air flushing. Currently the only sizes available are 116 and 131mm.

CORE BARREL SELECTION GUIDE

CONVENTIONAL DOUBLE TUBE CORE BARRELS

Q Series Wireline Core Barrels

These are thin wall core barrels available in diameters 46, 56, 66, 76, 86 and 101mm, suitable for general explorationpurposes. These core barrels have a relatively small cutting area and therefore permit rapid penetration, especially in harderrock formations. Water or mud flush is required. Designed for use in conjunction with metric casing. The TNW core barrel is theimperial size equivalent of the T2-76, virtually identical in design, but with a slightly smaller O.D. enabling it to fit into NW orNX casing.

WF Series Core Barrels

These are geotechnical core barrels, available in DCDMA sizes H, P and S. They are primarily designed for coring relatively softformations using face-discharge core bits, with water or mud as the flushing medium. Problems may be encountered usingthese barrels in harder rocks due to the relatively large area of the bit face, which will slow penetration rate and cause fasterbit wear compared to equivalent sizes in T2 or T6 series. The head design is rather primitive and the bearings are exposed tothe flushing medium, therefore these core barrels need regular servicing and maintenance. They continued to be widely usedlargely due to clients wishing to specify hole and core sizes according to U.S. and U.K. standards.

Triple Tube Q3 Series Wireline Core Barrels

CONVENTIONAL TRIPLE TUBE CORE BARRELS

WIRELINE DOUBLE TUBE CORE BARRELS

WIRELINE TRIPLE TUBE CORE BARRELS

Triefus Series Core Barrels

These are geotechnical core barrels, designed to maximise core recovery in soft formations. It is sometimes possible to obtainnear 100% volumetric core recovery in the most undisturbed condition as is possible with rotary drilling. They are suppliedwith a third, split tube which is pumped out from the inner tube after recovery. Six standard sizes are available giving coresizes from 35 - 146 mm.

Item Description Qty Part No. Qty Part No. Qty Part No.

Complete corebarrel 1.5m long 638 640 642


1 Inner tube 1.5m long 1 6383 1 6403 1 6423

Inner tube 3.0m long 1 6373 1 6393 1 6413

2 Outer tube 1.5m long 1 6382 1 6402 1 6422

Outer tube 3.0m long 1 6372 1 6392 1 6412

3 Blank reaming shell 1 6388 1 6408 1 6428

4 Extension tube 1 6374 1 6564 1 6414

5 Lifter case 1 6375 1 6395 1 6415

6 Corelifter 1 6376 1 6396 1 6416

7* Core Bit

8-17 Head assembly complete 1 6371 1 6391 1 6411

8 Corebarrel coupling 1 63711 1 63911 1 64111

9 Bearing shaft 1 63712 1 63912 1 64112

10 Bearing housing 1 63713 1 63913 1 64113

11 Washer 1 637141 1 639141 1 641141

12 Circlip 1 63715 1 63915 1 64115

13 Washers 1 637142 1 639142 1 641142

14 Set of adjusting washers 1 637143 1 639143 1 641143

15 Ball bearings 5 63716 6 63916 5 64116

16 Washer 1 637144 1 639144 1 641144

17 Lock-nut 1 63717 1 63917 1 63917

* Core Bit is not supplied with corebarrel and must be ordered separately.

Thread connection in corebarrel head 42 mm 50 mm 50 mm

Reaming shell outside diameter (mm) 46.3 56.3 66.3

56 66

Bit inside diameter (mm) 31.7 41.7 51.7

T2 DOUBLE TUBE CORE BARRELS

T2-46 T2-56 T2-66

Bit outside diameter (mm) 46




1 Inner tube 1.5m long 1 6473 1 6523 1 6573

Inner tube 3.0m long 1 6463 1 6513 1 6563

2 Outer tube 1.5m long 1 6472 1 6522 1 6572

Outer tube 3.0m long 1 6462 1 6512 1 6562


4 Extension tube 1 6464 1 6514 1 6564

5 Lifter case 1 6465 1 6515 1 6565

6 Corelifter 1 6466 1 6516 1 6566

7* Core Bit



9 Bearing shaft 1 64612 1 65112 1 65612

10 Bearing housing 1 64613 1 65113 1 65613

11 Washer 1 646141 1 651141 1 656141

12 Circlip 1 64615 1 65115 1 65615

13 Washers 1 646142 1 651142 1 656142

14 Set of adjusting washers 1 646143 1 651143 1 656143

15 Ball bearings 5 64614 4 65214 5 65614

16 Washer 1 646144 1 651144 1 656144

17 Lock-nut 1 64617 1 65117 1 65117



TC Reaming Shell 6478 6529 6579

Diamond Reaming Shell 64781 6530 6580

TC Core Bit 6491 6541 6591

Impregnated Core Bit 6493 6548 6596

Surface Set Core Bit 6494 6545 6595

Cube Set Core Bit 6495 6547 6597

Full Circle Wrench - Inner Tube 64991 65491 65971

Full Circle Wrench - Outer Tube 64992 65492 65972

Accessories T2-76 T2-86 T2-101


Core Barrel Type T2-76 T2-86 T2-101

Bit outside diameter (mm) 76 86 101

Bit inside diameter (mm) 61.7 71.7 83.7


Thread connection in corebarrel head 50 mm 50 mm NW




1 Outer tube 1.5m long 1 65984 1 6604 1 6612

Outer tube 3.0m long 1 659841 1 6602 1 6614

2 Inner tube 1.5m long 1 65985 1 6605 1 6623

Inner tube 3.0m long 1 659851 1 6603 1 6613


4 Lifter case 1 65986 1 6606 1 6615

5 Corelifter 1 65987 1 6607 1 6616

6* Core Bit



8 Inner head 1 659830 1 66010 1 66110

9 Bearing housing 1 659832 1 66012 1 66112

10 Lock-nut 1 659833 1 66013 1 66113

11 Washer 1 6598341 1 660141 1 661141

12 Bearings 1 659835 1 66015 1 66115

13 Washers 1 6598342 1 660142 1 661142

14 Thrust bearings 1 6598343 1 660143 1 661143

15 Spacer 5 659836 6 66016 5 66116

16 Thrust bearings 1 6598344 1 660144 1 661144

17 Bearing shaft 1 659837 1 66017 1 65117

18 Nuts 1 6598343 1 660143 1 661143

19 Adjusting coupling 5 659836 6 66016 5 66116

20 O-ring 1 6598344 1 660144 1 661144

21 Lubricant nipple 1 659837 1 66017 1 65117


Thread connection in corebarrel head 50 mm 50 mm NW


86 101

Bit inside diameter (mm) 57 67 79


T6-76 T6-86 T6-101

Bit outside diameter (mm) 76




1 Outer tube 1.5m long 1 6722 1 6772 1 6822

Outer tube 3.0m long 1 6712 1 6762 1 6812

2 Inner tube 1.5m long 1 6723 1 6773 1 6823

Inner tube 3.0m long 1 6713 1 6763 1 6813


4 Extension tube 1 6714 1 6764 1 6814

5 Lifter case 1 6715 1 6765 1 6815

6 Corelifter 1 6716 1 6766 1 6816

7* Core Bit



9 Inner head 1 67112 1 67612 1 68112

10 Lubricant nipple 1 67113 1 67613 1 68113

11 Lock-nut 1 67114 1 67614 1 68114

12 Washer 1 67115 1 67615 1 68115

13 Bearings 1 67116 1 67616 1 68116

14 Washers 1 67117 1 67617 1 68117

15 Thrust bearings 1 67118 1 67618 1 68118

16 Bearing housing 5 67119 6 67619 5 68119

17 Seal ring 1 67120 1 67620 1 68120

18 Bearing shaft 1 67121 1 67621 1 68121

19 Nuts 1 67122 1 67622 1 68122

20 Adjusting coupling 5 67123 6 67623 5 68123

21 O-ring 1 67124 1 67624 1 68124

* Core Bit is not supplied with corebarrel and should be ordered separately


T6-116 T6-131 T6-146

Bit outside diameter (mm) 116 131 146

Bit inside diameter (mm) 93 108 123


Thread connection in corebarrel head NW NW NW




TC Core Bit 65989 66090 6629



Cube Set Core Bit 659893 66093 66293






TC Core Bit 6741 6781 6831






ACCESSORIES FOR T6 DOUBLE TUBE CORE BARRELS



Item Description Qty Part No.

Complete corebarrel 1.5m long 667


1 Outer tube 1.5m long 1 6672

Outer tube 3.0m long 1 6662

2 Inner tube 1.5m long 1 6623

Inner tube 3.0m long 1 6613

3 Blank reaming shell 1 6678

4 Lifter case 1 6615

5 Corelifter 1 6616

6* Core Bit

7-21 Head assembly complete 1 6661

7 Corebarrel coupling 1 66611

8 Inner head 1 66110

9 Bearing housing 1 66112

10 Lock-nut 1 66113

11 Washer 1 661141

12 Bearings 1 66115

13 Washers 1 661142

14 Thrust bearings 1 661143

15 Spacer 5 66116

16 Thrust bearings 1 661144

17 Bearing shaft 1 65117

18 Nuts 1 661143

19 Adjusting coupling 5 66116

20 O-ring 1 661144

21 Lubricant nipple 1 65117



Diamond Reaming Shell 6680

Surface Set Core Bit 6685

Impregnated Core Bit 6686

Sawtooth Core Bit 6687

Accessories T6-H

98.9

Bit inside diameter (mm) 79

Bit outside diameter (mm)

Thread connection in corebarrel head NW

Reaming shell outside diameter (mm) 99.2

T6-H DOUBLE TUBE CORE BARREL

Core Barrel Type T6-H




1 Inner tube 1.5m long 1 65012

Inner tube 3.0m long 1 65002

2 Outer tube 1.5m long 1 65013

Outer tube 3.0m long 1 65003

3 Blank reaming shell 1 65007

4 Extension tube 1 65004


6 Corelifter 1 65006

7* Core Bit

8-17 Head assembly complete 1 65001


9 Bearing shaft 1 650012

10 Bearing housing 1 650013

11 Washer 1 6500141

12 Circlip 1 650015

13 Washers 1 6500142

14 Set of adjusting washers 1 6500143

15 Ball bearings 5 650016

16 Washer 1 6500144

17 Lock-nut 1 650017



Diamond Reaming shell 650081

Surface Set Core Bit 650094

Impregnated Core Bit 650093


TNW DOUBLE TUBE CORE BARREL

Core Barrel Type TNW

Bit outside diameter (mm) 75.3

Thread connection in corebarrel head NW ROD

Accessories TNW

Bit inside diameter (mm) 60.8

Reaming shell outside diameter (mm) 75.7


Complete corebarrel 5ft long 602 607 612


1* Core Bit

2 Lifter case 1 6014 1 6064 1 6114

3 Corelifter 1 6016 1 6066 1 6116

4 Ferrule (for inner tube) 1 60132 - -

5 Inner tube 5ft long 1 6023 1 6073 1 6123

Inner tube 10ft long 1 6013 1 6063 1 6113

6 Outer tube 5ft long 1 6022 1 6072 1 6122

Outer tube 10ft long 1 6012 1 6062 1 6112

7-16 Head assembly complete 6011 6061 6111

7 Spindle 1 60119 1 60619 1 60619

8 Spacer washer 1 601191 - -

9 Thrust washer 1 60118 1 60618 1 60618

10 Shim set 1 60117 1 60617 1 61117

11 Inner tube bung 1 60115 1 60615 1 60615

12 Oilite bush 2 60116 1 60616 1 60616

13 Thrust bearing 1 60113 1 60613 1 60613

14 Lock-nut 1 60114 1 60614 1 60614

15 Steel ball 1 60112 1 60112 1 60112




TC Core Bit 6041 6081 6131

Sawtooth Core Bit 6043 6093 6133




The WF series corebarrels are ideal for coring soft as well as hard formations. For softformations use core bits with face discharge waterways to prevent erosion of the core.These corebarrels can also be used with plastic liners or mylar liners to form a triple tubecorebarrel.

Core Barrel Type HWF PWF SWF

119.9 145.3

Bit inside diameter (mm) 76.2 92.1

WF SERIES DOUBLE TUBE CORE BARRELS

Core Barrel Type HWF PWF SWF


112.7

Reaming shell outside diameter (mm) 99.2 120.7 146

Thread connection in corebarrel head HW 2 7/8 API IF 2 7/8 API IF


Complete corebarrel 5ft long 622


1* Core Bit


3 Corelifter 1 6216

4 Ferrule (for inner tube) 1 -

5 Inner tube 5ft long 1 6223

Inner tube 10ft long 1 6213

6 Outer tube 5ft long 1 6222

Outer tube 10ft long 1 6212

7-16 Head assembly complete 6211

7 Spindle 1 62119

8 Spacer washer 1 621191

9 Thrust washer 1 62118

10 Shim set 1 62117

11 Inner tube bung 1 62115

12 Oilite bush 2 62116

13 Thrust bearing 1 62113

14 Lock-nut 1 62114

15 Steel ball 1 62112




TC Core Bit 6241


PDC Core Bit 6244

Accessories 412

Reaming shell outside diameter (mm) -

Thread connection in corebarrel head HW

74.7

412 DOUBLE TUBE CORE BARREL

Core Barrel Type 412

The 412 core barrel is designed as an air flush core barrel, for coring softformations, such as limestones, sandstones and coal measures. The large annulusbetween the outer tube and inner tube allows a large volume of air to be pumpedthrough the core barrel for clearance of the rock cuttings. These corebarrels canalso be used with plastic liners or mylar liners to form a triple tube corebarrel.


Bit inside diameter (mm)




1 Head Assembly 1 68611 1 69111 1 69211

2 Inner tube 5ft long 1 68643 1 69143 1 69243

Inner tube 10ft long 1 68642 1 69142 1 69242

3 Stop ring 1 686412 1 691412 1 692412

4 Corelifter 1 68641 1 69141 1 69241

5 Lifter case 1 68640 1 69140 1 69240

6 Locking coupling 1 68646 1 69146 1 69246

7 Adapter coupling 1 68647 1 69147 1 69247

8 Landing ring 1 68648 1 69148 1 69248

9 Outer tube 5ft 1 68645 1 69145 1 69245

9 Outer tube 10ft 1 68644 1 69144 1 69244

10 Inner tube stabilizer 1 68649 1 69149 1 69249

11 Thread protector 1 68658 1 69158 1 69258

* Core Bit and Reaming Shell are not supplied with corebarrel assembly and should be ordered separately

Overshot Assembly Complete

Compact Overshot NQ HQ PQ

6863 6913 6923

85

Q SERIES WIRELINE CORE BARRELS

Core Barrel Type NQ HQ PQ



95.8 122

Bit inside diameter (mm) 47.6 63.5

Bit outside diameter (mm)

Bit inside diameter (mm)

Reaming shell outside diameter (mm)




1 Head Assembly 1 69111

2 Pump 0ut Adaptor, 3/4" NPT 1 6911311

3 Piston Plug 1 6911312

4 O Ring 1 6911313

5 Core Ejection Piston 1 6911314

6 Split Inner Tube 5ft long 1 6911315

Split Inner Tube 10ft long 1 6911316

7 Inner tube 5ft long 1 69143

Inner tube 10ft long 1 69142

8 Stop ring 1 691139

9 Corelifter 1 691134


11 Locking coupling 1 69146

12 Adapter coupling 1 69147

13 Landing ring 1 69148

14 Outer tube 5ft 1 69145

Outer tube 10ft 1 69144

15 Inner tube stabilizer 1 69149

16 Thread protector 1 69158

* Core Bit and Reaming Shell are not supplied with corebarrel assembly and should be ordered separately

96.3

TRIPLE TUBE WIRELINE CORE BARRELS

95.8

61.1

HQ3

Item Description Qty Part No. Qty Part No. Qty Part No. Qty Part No.

TC Reaming Shell 68659 69159 69159 69259

Diamond Reaming shell 68660 69160 69160 69260

TC Core Bit Insert Type 68662 69162 69177 69262

TC Core Bit Carbotec Type 68663 69163 - 69263

Surface Set Core Bit 68664 69164 69179 69264

Impregnated Core Bit 68665 69165 69175 69265

Cube Set Core Bit 68666 69166 69176 69266

Full Grip Wrench - Outer tube 68650 69150 69150 69250

Full Grip Wrench - Inner tube 68651 69151 69151 69251

PQNQ HQ HQ3

ACCESSORIES FOR WIRELINE CORE BARRELS

WIRELINE DRILL RODS

Dimensions AQ BQ NQ HQ PQ

Rod O.D. (mm) 44.5 55.6 69.9 88.9 114.3

Rod I.D. (mm) 34.9 46.0 60.3 77.8 103.2

Approx weight (kg per m) 4.7 6.1 7.7 11.6 15.9

Description AQ BQ NQ HQ PQ

Rod L=10ft 7800 7810 7820 7830 7830

Rod L=5ft 7801 7811 7821 7831 7831

Rod L=2ft 7802 7812 7822 7832 7832

Drill Rod Wrench 7809 7819 7829 7839 7839

Rod Designation

Part Number

Wireline drill rods are manufactured by Boart Longyear using very high specification steeland heat-treated threads for very long service life.

Available in sizes AQ - PQ.

PARALLEL THREADED DRILL RODS

Dimensions AW BW NW HW 42mm 50mm

Rod O.D. (mm) 44.4 54.0 66.7 88.9 42.0 50.0

Rod I.D. (mm) 31.7 38.0 50.8 72.0 32.2 37.0

Coupler I.D. (mm) 15.9 17.5 35.0 60.3 22.0 22.0

Approx weight (kg per m) 6.2 8.6 12.3 16.9 4.2 6.7

Description AW BW NW HW 42mm 50mm

Rod c/w coupling L=3.0m 7500 7510 7520 7530 7600 7610



Coupling 7509 7519 7529 7539 7609 7619

Rod Spanner 7507 7517 7527 7537 7607 7617

Rod Hoisting Swivel 7506 7516 7526 7536 7606 7616

DCDMA SERIES METRIC SERIES

Part Number

Parallel threaded drill rods are available in two series, DCDMA sizes AW - HW, and Metricsizes 42 and 50mm. Both series consist of a hollow steel tube with a box thread at each end.The tubes are connected by means of a coupler manufactured from hardened alloy steel. Therods are mainly used for rotary coring applications, and may connect directly onto the corebarrel head, either with or without an adaptor. AW and BW rods are also sometimes used asSPT drive rods, although we would recommend using our specially designed SPT rods for thispurpose, as they can better withstand the percussive forces generated during driving with atrip hammer.

When choosing the diameter of the rod to be used for rotary applications consideration shouldbe made of the diameter of the core barrel, and the annulus in the borehole around the rodshould be minimized to generate sufficient uphole velocity of flush necessary to clear thecuttings. Rod spanner and hoisting swivels are available for each diameter of rod.

TAPER THREADED DRILL RODS

Dimensions AWY BWY NWY HWY

Rod O.D. (mm) 44.4 54.0 66.7 88.9

Rod I.D. (mm) 31.7 38.0 54.0 72.9

Coupler I.D. (mm) 15.9 19.0 31.7 44.4

Approx weight (kg per m) 6.2 9.5 10.6 17.0

Description AWY BWY NWY HWY

Rod complete L=3.0m 7560 7570 7580 7590

Rod complete L=1.5m 7561 7571 7581 7591

Rod complete L=0.75m 7562 7572 7582 7592

Box Tool Joint (Female end) 75651 75751 75851 75951

Pin Tool Joint (Male end) 75652 75752 75852 75952

Rod Spanner 7567 7577 7587 7597

Rod Hoisting Swivel 7566 7576 7586 7596

Part Number

Rod Designation

Taper threaded drill rods are available in DCDMA sizes AWY - HWY. The rodsconsist of a hollow steel tube with a box thread at each end. Male and female tooljoints manufactured from hardened alloy steel are threaded to the tube at eachend. This design gives longer life to the rods compared with parallel thraed rods,and facilitates rapid coupling and coupling using drill rigs with a break-out device.

When choosing the diameter of the rod to be used for rotary applicationsconsideration should be made of the diameter of the core barrel, and the annulus inthe borehole around the rod should be minimized to generate sufficient upholevelocity of flush necessary to clear the cuttings. Rod spanner and hoisting swivelsare available for each diameter of rod.

Dimensions FW 76 FW 89 FW 114 FW 140

Rod O.D. (mm) 76.0 89.0 114.3 139.7

Connection Type2 3/8" API

Reg2 3/8" API

Reg3 1/2" API

Reg4 1/2" API

Reg

Approx weight (kg per m) 12 15 20 28

Description FW 76 FW 89 FW 114 FW 140

Rod complete L=3.0m 7700 7710 7720 7730

Rod complete L=2.0m 7701 7711 7721 7731

Rod complete L=1.5m 7702 7712 7722 7732

Rod complete L=1.0m 7703 7713 7723 7733

Rod Hoisting Swivel 7706 7706 7726 7736

Part Number

FRICTION-WELDED DRILL RODS FORDTH HAMMER USE

Friction-welded drill rods are ideal for use with down the hole hammers. The rodsconsist of a high-qiuality steel tube with male and female tool joints friction weldedonto each end. The adavantage of friction-welding is that it forms a very strongbond between the tool joints and the rod tube, to easily withstand the stressesinvolved in percussive drilling. (Rods with threaded tool joints are not recommendedfor DTH drilling as they tend to "climb-over" the rod tube with continued use). Thetool joints are specially surface hardened for increased wear resistance. Each tooljoint has square spanner flats (see cross section).

The rods are available in 4 standard sizes with API type connections, and areprovided with thread protectors to prevent damage to the rod ends during transportand storage Hoisting swivels are available for each size.

Rod Designation

METRIC SERIES CASING

Dimensions 46 56 66 76 86 101 116 131 146

Outside Diameter "A" (mm) 44 54 64 74 84 98 113 128 143

Inside Diameter "B" (mm) 37 47 57 67 77 89 104 119 134

Approx weight (kg per m) 3.5 4.4 5.3 6.3 7.2 10.5 12.4 13.8 15.4

Description 46 56 66 76 86 101 116 131 146

Casing L=3.0m 7200 7210 7220 7230 7240 7250 7260 7270 7280

Casing L=1.5m 7202 7212 7222 7232 7242 7252 7262 7272 7282

Casing L=0.75m 7204 7214 7224 7234 7244 7254 7264 7274 7284

Casing Shoe TC 72070 72170 72270 72370 72470 72570 72670 72770 72870

Casing Shoe Diamond 72071 72171 72271 72371 72471 72571 72671 72771 72871

Casing Drive Head* 7206 7216 7226 7236 7246 7256 7266 7276 7286

* Specify drill rod connection required when ordering Casing Drive Head

Part Number

Metric casing is designed to be used in conjunction with metric series core barrels TT, T2 and T6Series, The casing has integral pin and box threads at each end, and is made from a thinner butstronger material than the imperial sizes (W and X series). The internal diameter provides sufficientclearance for the respective sized corebarrels to pass down. For example, a T6-116 core barrel will drilla 116mm diameter hole which can then be cased with 116 casing. The the next core barrel in theseries, T6-101 will then fit inside the 116 casing to continue coring to a greater depth.

Casing drive heads, and casing shoes in diamond and tungsten carbide are available for each size.When ordering casing drive heads, please specify drill rod connection required.

Casing Type

W SERIES CASING

Dimensions BW NW HW PW SW UW ZW

Outside Diameter "A" (mm) 73.0 88.9 114.3 139.7 168.3 193.7 219.1

Inside Diameter "B" (mm) 60.3 76.2 101.6 127 150.8 176.2 203.2

Approx weight (kg per m) 10.5 12.9 16.9 20.9 32.5 39.9 41.3

Description BW NW HW PW SW UW ZW

Casing L=3.0m 7000 7010 7020 7030 7040 7050 7060

Casing L=1.5m 7002 7012 7022 7032 7042 7052 7062

Casing L=0.75m 7004 7014 7024 7034 7044 7054 7064

Casing Shoe TC 70070 70170 70270 70370 70470 70570 70670

Casing Shoe Diamond 70071 70171 70271 70371 70471 70571 70671

Casing Drive Head* 7006 7016 7026 7036 7046 7056 7066


Casing Type

Part Number

Flush-jointed casing has integral pin and box threads at each end, and unlike the XSeries does not rely on separate couplings to connect each length together. Theheavier wall section provides internal and external mating shoulders for the threads tobutt-up againts, preventing the threads climbing up under heavy torque loads. This isthe most popular type of casing used in geotechnical applications. The internaldiameter provides sufficient clearance for the respective sized corebarrels to passdown, e.g. HWF corebarrel within HW casing, PWF corebarrel within PW casing etc.

The smaller diameters B-H are manufactured from cold drawn seamless tubes, and thelarger diameters P-Z from hot-finished seamless tubes, grade ST52 or higher. Casingdrive heads, and casing shoes in diamond and tungsten carbide are available for eachsize. When ordering casing drive heads, please specify drill rod connection required.

X SERIES CASING

Dimensions NX HX PX

Outside Diameter "A" (mm) 88.9 114.3 139.7

Inside Diameter "B" (mm) 76.2 100.0 123.6

Approx weight (kg per m) 12.9 16.9 20.9

Description NX HX PX

Casing L=3.0m 7110 7120 7130

Casing L=1.5m 7112 7122 7132

Casing L=0.75m 7114 7124 7134

Casing Shoe TC 71101 71201 71301

Casing Shoe Diamond 71171 71271 71371

Casing Drive Head* 7116 7126 7136


As an option this casing can be manufactured as a flush-jointed type, lacking thecoupling, but with X series pin and box threads at each end

Flush-coupled casing uses separate couplings to connect each length together. Thewall thickness of the coupling is slighthly thicker than the mid-body section of eachtube, giving a lighter weight casing string but still the advantage of strength in thethreaded section. The internal diameter provides sufficient clearance for the respectivesized corebarrels to pass down, e.g. HWF corebarrel within HW casing, PWF corebarrelwithin PW casing etc.

The smaller diameters N-H are manufactured from cold drawn seamless tubes, and thelarger diameters P-Z from hot-finished seamless tubes, grade ST52 or higher. Casingdrive heads, and casing shoes in diamond and tungsten carbide are available for eachsize. When ordering casing drive heads, please specify drill rod connection required.

Casing Type

Part Number

DRAG BITS TRICONE ROCK BITS

Milled Steel ToothTricone Bit

Tungsten CarbideInsert (TCI)Tricone Bit

Size Pin Connection Part No. Size Pin Connection Part No.

2 15/16" N ROD 9001-9003 2 15/16" N ROD 9005

3" N ROD 9011-9013 3" N ROD 9015

3 1/4" N ROD 9021-9023 3 1/4" N ROD n/a

3 7/8" 2 3/8" API REG 9031-9033 3 7/8" 2 3/8" API REG 9035

4" 2 3/8" API REG 9041-9043 4" 2 3/8" API REG 9045

4 1/8" 2 3/8" API REG 9051-9053 4 1/8" 2 3/8" API REG 9055

4 1/2" 2 3/8" API REG 9061-9063 4 1/2" 2 3/8" API REG 9065

4 3/4" 2 7/8" API REG 9071-9073 4 3/4" 2 7/8" API REG 9075

4 7/8" 2 3/8" API REG 9081-9083 4 7/8" 2 3/8" API REG 9085

5" 2 3/8" API REG 9091-9093 5" 2 3/8" API REG 9095

5 1/8" 2 7/8" API REG 9101-9103 5 1/8" 2 7/8" API REG 9105

5 1/4" 2 7/8" API REG 9111-9113 5 1/4" 2 7/8" API REG 9115

5 1/2" 3 1/2" API REG 9121-9123 5 1/2" 3 1/2" API REG n/a

5 5/8" 3 1/2" API REG 9131-9133 5 5/8" 3 1/2" API REG 9135

5 7/8" 3 1/2" API REG 9141-9143 5 7/8" 3 1/2" API REG 9145

6" 3 1/2" API REG 9151-9153 6" 3 1/2" API REG 9155

6 1/8" 3 1/2" API REG 9161-9163 6 1/8" 3 1/2" API REG 9165

6 1/4" 3 1/2" API REG 9171-9173 6 1/4" 3 1/2" API REG 9175

6 3/8" 3 1/2" API REG 9181-9183 6 3/8" 3 1/2" API REG 9185

6 1/2" 3 1/2" API REG 9191-9193 6 1/2" 3 1/2" API REG 9195

6 3/4" 3 1/2" API REG 9201-9203 6 3/4" 3 1/2" API REG 9205

Refurbished bits are sometimes available in the larger sizes, which give an economical performance for civil engineeringand water well drilling applications.

Sizes up to 12 1/4" available - ask for details

Milled Sttel Tooth Tricone Bits Tungsten Carbide Insert (TCI) Rock Bits

Tricone bits are available in with either Milled Steel Teeth or Tungsten Carbide Insert (TCI) Teeth. The last digit of thepart number indicates the rock hardness, in increasing hardness 1 - 3 (for Steel Tooth Bits) and 4 - 8 (TCI bits).

Sizes up to 12 1/4" available - ask for details

DRAG BITS DRAG BITS

Chevron type3-wing drag bit

Step type3-wing drag bit

Size Pin Connection Part No. Size Pin Connection Part No.

1 7/8" - 2 1/2" AW, A ROD 9670 - 9673 2 3/4" - 3 1/2" N ROD 965

2 3/4" AW, A ROD 9674 3 5/8" - 4 3/4" 2 3/8" API REG 9651 - 9655

2 7/8" AW, A ROD 9675 5" 2 3/8" API REG 9656

2 3/4" - 3 1/8" N ROD 9676 5 1/8" 2 3/8" API REG 9657

3 1/4" N ROD 9677 5 1/4" 2 3/8" API REG 9658

3 1/2" N ROD 9678 5 1/2" 2 3/8" API REG 9659

3 3/4" N ROD 9679 5 5/8" 2 3/8" API REG 9660

3 3/4" - 4 3/4" 2 3/8" API REG 968 - 972 6" 2 3/8" API REG 9661

5" 2 3/8" API REG 973 6 1/4" 2 3/8" API REG 9662

5 1/8" 2 3/8" API REG 974 6 1/2" 2 3/8" API REG 9663

5 1/4" - 5 1/2" 2 3/8" API REG 975 - 976 6 3/4" 2 3/8" API REG 9664

4 5/8" - 4 7/8" 2 7/8" API REG 977 - 978 5 1/2" - 6 3/4" 3 1/2" API REG 96651 - 96655

5" 2 7/8" API REG 9781 6 7/8" - 7 7/8" 3 1/2" API REG 96656- 96660

5 1/8" - 5 1/2" 2 7/8" API REG 9782 - 9783 8" - 9" 3 1/2" API REG 96661

5 1/2" 3 1/2" API REG 9784 9 1/8" - 10" 3 1/2" API REG 96662

5 5/8" 3 1/2" API REG 9785 10 1/8" - 10 7/8" 3 1/2" API REG 96663

6" 3 1/2" API REG 9786 7 7/8" - 8 7/8" 3 1/2" API REG 96664

6 1/8" 3 1/2" API REG 9787 9 - 9 7/8" 3 1/2" API REG 96665

6 1/4" 3 1/2" API REG 9788 10 - 10 7/8" 3 1/2" API REG 96666

6 1/2" 3 1/2" API REG 9789 11 - 12" 4 1/2" API REG 96667

6 3/4" 3 1/2" API REG 9790 12 1/4" 4 1/2" API REG 96668

7" 3 1/2" API REG 9791

7 1/4" 3 1/2" API REG 9792

7 1/2" 3 1/2" API REG 9793

7 3/4" 3 1/2" API REG 9794

7 7/8" 3 1/2" API REG 9795

8" 3 1/2" API REG 9796

Chevron type 3-wing drag bit Step type 3-wing drag bit

Sizes up to 22" available - please ask for details

All drag bits are manufactured as one piece, from forged steel, with sintered tungsten carbide inserts on the cuttingedges, available in two styles, chevron type or step type

Item Description Part No. Wt. (kg)

1-14 Water Swivel 5T, complete 9800 12.3

1 Hoisting Cap 98001 3.2

2 Capscrew (4 pcs) 98002 -

3 Spring Washer (8 pcs) 98003 -

4 O Ring 98004 -

5 Packing 98005 -

6 Bush (2 pcs) 98006 -

7 Thrust Bearing (2 pcs) 98007 -

8 Capscrew (4 pcs) 98008 -

9 Spindle 98009 1.6

10 Washer 98010 -

11 Bearing Cap 98011 0.7

12 Grease Nipple 98012 -

13 Housing 98013 4

14 Hose Adaptor 98014 0.1

15 Drill Rod Adaptor* 9805 0.1

WATER SWIVEL 5 TONNE

Water Swivel 5 Tonne

* The Drill Rod Adaptor (item 15) is purchased separately andcustomer is required to indicate drill rod connection required.

This lightweight and compact water swivel is perfect for geotechnicalworks and can be used with several different types of rods simply bychanging the adaptor attached to the lower end. It is designed to pullout by means of its hoisting cap weights up to 5 metric tonnes.

Its spare parts are ruggedly constructed to undertake the heaviestduties.


1-10 Automatic trip hammer assembly 490 107

1 Outer tube assembly c/w pawls 4904 16

2 Inner guide shaft 4903 12

3 Safety retaining bolt 49044 -

4 Pair of pawls (pick up dogs) 49041 0.2

5 Pair of pawl pins 49042 -

6 Pair of pawl springs 49043 -

7 Pick-up collar 49021 1

8 Drop weight 63.5kg 4902 63.5

9 Anvil * 4901 15

10 Seloc pin for retaining anvil 4905 -

AUTOMATIC TRIP HAMMER FOR S.P.T.

Drop weight (kg) 63.5

Automatic trip hammer complying with B.S. 1377

* The anvil is provided with a 1 1/2" B.S. Whitworth box connection tofit our standard SPT rods. Adaptors to other types of drill rod can besupplied on request.

The Automatic Trip Hammer is designed for carrying out the StandardPenetration Test (SPT) to BS 1377: Part 9: 1990. SPT Drive Rods and aSplit Tube Sampler are connected to base of the anvil, and driven intothe ground by the falling weight.

The hammer comprises a drop weight of 63.5 kg and a pick-up and self-tripping mechanism that ensures the weight has a free fall of exactly760mm.

The inner shaft acts as a guide on which the weight drops with minimalresistance and strikes the anvil squarely.

The trip hammer is supplied with a Safety retaining bolt to prevent theweight from sliding when the hammer is not in use or during transport.

760Drop height (mm)

Item Description Part No. Weight (kg)

1-3 SPT Split Tube Sampler Assembly 404 7.3

1 Ball valve adaptor 1.1/2" BS Whit Pin* 418 2

Ball valve adaptor Quick Thread Pin 4181 2

2 Split tubes only (11 tpi V thread) 411 5

3 SPT Drive Shoe (11 tpi V thread) 422 0.3

4 SPT (C) Nose Cone (11 tpi V thread) 431 0.6

5 SPT (C) Solid Rod 1.1/2" BS Whit Pin* 435 9

5 SPT (C) Solid Rod Quick Thread Pin 436 9

* Standard connection is 1.1/2" BS Whitworth Pin (connects to Standard SPTDrive Rod). Adaptors to other drill rod types are available on request.

STANDARD SPLIT TUBE SAMPLER

For Standard Penetration Test. This split tube sampler is designed for takingsoil samples at the bottom of a cleared borehole using the Automatic TripHammer and SPT drive rods. The split tube is held together with a ball valveadaptor and a hardened steel drive shoe. The ball valve adaptor preventssamples from being washed out of the sampler when it is withdrawn from theborehole. A 60 degree nose cone or long solid rod with 60 degree point isavailable for carrying out SPT (c) tests in gravel and loose material.

The sampler is available in 2" diameter, according to the specification of BS1377 : Part 9: 1990.

For heavy driving conditions, the Heavy-duty "Tuflok" design is preferred.


1-3 2" Split Tube Sampler Assembly 400 7.3

1 2" Ball valve adaptor 1.1/2" BS Whit Pin 415 2

2" Ball valve adaptor Quick Thread Pin 417 2

2 2" Split tubes only 410 5

3 2" Drive Shoe BS 1377 420 0.3

2" Drive Shoe ASTM 424 0.3

4 2" Plastic liner c/w plastic end caps 429 0.15

5 2" Trap valve 428 0.04

6 2" Basket retainer - plastic 426 0.01

2" Basket retainer - steel 427 0.03

7 2" Drive Shoe BS - for basket retainer 421 0.3

8 2" SPT (C) Nose Cone (Tuflok type) 430 2


1-3 3" Split Tube Sampler Assembly 4400 12

1 3" Ball valve adaptor NW rod box 4401 4.3

2 3" Split tubes only 4402 7

3 3" SPT Drive Shoe 4403 0.7

4 3" Plastic liner c/w plastic end caps 4406 0.2

5 3" Trap valve 4408 0.1

2" Split Tube Sampler (BS or ASTM Standard)

3" Split Tube Sampler

HEAVY-DUTY "TUFLOK" SPLIT TUBE SAMPLER

For Standard Penetration Test. This is a heavy duty version of the standardsplit tube sampler and is designed for taking soil samples at the bottom of acleared borehole using the Automatic Trip Hammer and SPT drive rods. The splittube is held together with a ball valve adaptor and a hardened steel drive shoe.The ball valve adaptor prevents samples from being washed out of the samplerwhen it is withdrawn from the borehole. Basket retainers, trap valves and plasticliners are available as an option with this type of sampler.

The sampler is available in two diameters: 2" (to BS 1377 : Part 9: 1990 orU.S. ASTM Standards) and 3".

The split tube is forged and heat-treated and has a large driving shoulder at thetop end to prevent premature breakage under heavy driving conditions. The twohalves of the split tube lock together by means of a step in the profile of thetube, thus preventing bowing of the tube. The threads are coarse, square typefor quick and easy release of the drive shoe when necessary.

6 3" Basket retainer - plastic 4404 0.02

3" Basket retainer - steel 4405 0.08


1 SPT Drive Rod 3.0m long 450 26

SPT Drive Rod 1.5m long 451 14



2 SPT Rod Swivel Hoist 455 7

3 SPT Rod Spanner 456 5

SPT DRIVE ROD, HOIST PLUG, ROD BITCH

SPT Drive Rod, Swivel Hoist & Rod Spanner

SPT Drive Rods complying with BS 1377: Part 9: 1990 aremanufactured from 54mm diameter tube with welded male and femalesolid ends, each with a 1.1/2" BS Whitworth thread. Each rod end hasa pair of spanner flats, to enable the rod to be gripped with stillsons orspecial rod spanner.

The rod spanner can also be used to suspend the drive rods at the topof the casing, during sampling operations.

A rod swivel hoist is also available for lowering and rtraising the rods inthe bore hole.


1 3" Shelby Tube Head 355 6

2 3" Stainless Steel Shelby Tube 600mm 358 2

3" Stainless Steel Shelby Tube 1000mm 356 3.3

3 Spare set of screws for 3" Shelby Tube 3551 -

Plastic cap for 3" Shelby Tube 359 -


1 4" Shelby Tube Head 350 9

2 4" Stainless Steel Shelby Tube 600mm 353 2.5

4" Stainless Steel Shelby Tube 1000mm 351 4

3 Spare set of screws for 4" Shelby Tube 3501 -

Plastic cap for 4" Shelby Tube 354 -

76.2

Inside diameter of tube (mm) 72.9

Area Ratio % 9.3%

SHELBY TUBE SAMPLERS

Thin-walled "Shelby" tube samplers are used for soils that are particularlysensitive to sampling disturbance, and consist of a thin-walled stainless steeltube whose lower edge is chamfered to form a cutting edge. The area ratio isless than 10%.

These samplers are suitable only for fine soils up to a firm consistency, andfree from large particles. They generally give Class 1 undisturbed samples inall fine cohesive soils, including sensitive clays, provided that the soil has notbeen disturbed by sinking the borehole.

Shelby tube samplers are available in two standard diameters, 3" and 4", butother diameters can be manufactured by special request.

The drive head contains a non-return valve to allow free exit of water and/orair above the sample. The sample tube is attached to the head by means offour screws

3" Shelby Tube Sampler

Outside diameter of tube (mm)

Area Ratio % 6.8%

4" Shelby Tube Sampler

Outside diameter of tube (mm) 101.6

Inside diameter of tube (mm) 98.3

118.6

104.4

29%

Item Description Part No.

1 Sample tube - aluminium 306

1 Sample tube - steel 305

2 Corecatcher 309

3 Cutting Shoe 310

Plastic End Caps for Sample Tube 308

Aluminium End Caps 307

123.8

101.6

48%

Item Description Part No.

4 Steel Liner Retainer 315

5 Plastic Liner 18" Long c/w end caps 325

6 Corecatcher 316

7 Spacer Ring (used with corecatcher) 319

8 Cutting Shoe 317

Minimum I.D. (mm)

Plastic Liner U100 System

Maximum O.D. (mm)

Minimum I.D. (mm)

U100 SAMPLING SYSTEMS

Standard U100 System

Area Ratio

These systems are designed for taking 100mm diameterundisturbed samples in clay and other soft formations. Thesample tubes are each 18" long and are driven into theground with a sliding hammer or other arrangement, via abell housing incorporating an air release valve.

Area Ratio

Maximum O.D. (mm)

Two systems are currently available. The Standard Systemutilises steel or aluminium sample tubes, with a cuttingshoe and optional corecatcher.

The Plastic Liner System utilises plastic liners to retain thesample. The plastic liner is retained within a steel tube.Although this system reduces the overall cost of takingsamples, the samples produces suffer greater disturbancedue to the higher area ratio compared with the standardsystem.

GUS PISTON SAMPLER

This unique, air or water-operated piston sampler has been designed andextensively test proven in the field, yielding truly undisturbed Class 1samples and high-production sampling.

How it works:

The GUS Sampler is assembled on a drill rod and lowered to the bottom of aclean, cased or self-supporting, borehole. A water or air swivel is attachedwith a hose line coupled to the swivel and the pressure pump. As the water orair pressure is applied at approximately 100 –600 P.S.I, the piston in thehead of the assembly (16) forces the thin wall sample tube (1) into the softunderlying soil or clay materials to take the sample.

Once the sampler reaches the end of its maximum travel, the water or airused for pressing exhausts through a relief hole, and returns immediately tothe surface. This is a signal to the operator that the sample has been taken toits maximum depth.

Depending on the materials being sampled, the sampling may take only afew seconds or as much as one minute to reach its maximum travel of 24”.

After the sample has been taken, the rods and sampler are pulled to thesurface and laid out on trestles for removal of the sample tube. The sampletube is rotated in 3 turns is an anti-clockwise direction which releases the“vacuum lock”created over the sample in the sample tube and allows foreasy removal of the sample tube containing the sample. A new sample tubeis then installed on the sample head and the procedure repeated.

Advantages of the GUS Sampler:

•Borehole diameter need not be larger than the sampler size in use.

•Simple to operate –there is no need for actuating rods or complicatedprocedures.

•Piston closes of sampler until sample is taken.

•No need for hoses in the borehole. Water or air is delivered directly throughthe drillrods.

•Drill rig is not necessary for sampling, however, hoist is required to lift toolsand sampler from the borehole.

•Inexpensive when compared to other types of piston samplers.

6" 8"

168.3 219.1

149.2 200.0

Item Description

1 Casing L=3.0m 501 531

2 Casing L=1.5m 500 530

3 Casing L=0.75m 502 532

4 Clevis & Pin 507 537

5 Casing Drive Head (Male) 505 535

6 Casing Drive Head (Female) 506 536

7 Casing Shoe (Female) 510 540

8 Casing Shoe (Male) 511 541

9 Casing Shoe T.C. 514 544

10 Casing Clamps 508 538

6" 8"

139.7 193.7

Item Description

11 Shell / Bailer Assembly 516 546

12 Steel Clack 5162 5462

13 Claycutter Assembly 515 545

14 Claycutter Ring 5152 5452

15 Tool Shoe (for Shell/Claycutter) 517 547

16 3-bladed Stubber 519 549

17 Cross Chisel 520 550

SHELL & AUGER CASING AND TOOLS

Shell & Auger Casing

Tool O.D. - Standard type (mm)

Part No.

Strong steel flush jointed casing ideal for use in general siteinvestigation works with cable percussion rigs. Heavy-duty drive headsand casing shoes with hardened bevel edge can be supplied with eithermale or female threads, depending on whether the casing is used in"pin-up" or "pin-down" position.

A complete suite of tools is also supplied including bailers, claycutters,cross cutters (stubbers) and chisels for clearing out the borehole.These tools are ruggedly constructed for maximum service life.

Nominal Diameter

Casing I.D. (mm)

Casing O.D. (mm)

Part No.

Tools for Shell & Auger Casing

Nominal Diameter

“GEOPRO”Inflatable Packers

Global Geotech supplies a complete range of inflatable packers innine different diameters from 28 –170mm. The inflatable sleeves arereinforced with two layers of steel cables embedded in naturalrubber.

The deflated packer is lowered into the drilled borehole and is theninflated with neutral gas or water injected through an inflation line. Aborehole is thus isolated and hydrological tests or cement groutingworks can be conducted in this area.

Thanks to their modular design, all Geopro packers offer reliable andeasy operation. Inflatable sleeves can be replaced in the field andsingle packers are easily adapted into double packers.

To convert a single packer to a double packer just unscrew thesliding end SE from the single packer and replace it with the CEelement. Complete the installation by screwing a standard sleeve Sand a plug PL on the lower part of the packer.

On all packer sizes of 56mm and greater, the CE element has adiameter identical to the whole packer assembly. This design makesthe double packer ZI extremely robust and the external flush,particularly well adapted to micropile grouting and water pressuretests.

In addition to standard packers, Global Geotech can supply specialpackers for different applications:-

Packers for testing water wells Packers for wire line core barrels Large diameter packer for boreholes 275 –450 mm Impression or “Print”Packers Pump packers for water sampling High pressure Hydrofracturing packers Plug packers for abandonment or recovery

Spare parts for packers and accessories such as inflation hoses,pumps and couplings are readily available

global-geotech-brochure[1]

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