9.625in cut & pull procedure_r1

8/11/2019 9.625IN Cut & Pull Procedure_r1

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Baker Hughes Operational ProcedureTalisman Energy

Copyright © 2013 Baker Hughes ncorporated! "ll rights reser#ed! This document$together %ith the in&ormation thereon' is the company con&idential and proprietaryin&ormation o& Baker Hughes ncorporated $Baker'! This document is su()ect to returnon demand! t may not (e copied or reproduced in %hole or in part %ithout the e*press%ritten consent o& Baker+ and may not (e used directly or indirectly in any %aydetrimental to or in competition %ith Baker,s interest!

Baker Hughes

-BProcedure

Petronas Carigali Sdn.

Bhd. (PCSB)

9-5/8” Cut & Pull ProcedureRev.

Su!anda" #e$i%-5 & %-

Pre$ared' Si! Cheng San

Revieed B' *a+as ,unir



Operational Running Procedure

1. Project Details

2. Current Well Schematic

3. Cut 9-5/8” 4 !!" Casin#

4. Pull 9-5/8” 4 !!" Casin# 8

5. Contin#enc$ Casin# %illin# o" 9-5/8” 4 !!" Casin# 9

Baker Hughes Operational Procedure o& 12

Copyright © 2013 Baker Hughes ncorporated! "ll rights reser#ed! This document $together %ith the in&ormation thereon' isthe company con&idential and proprietary in&ormation o& Baker Hughes ncorporated $Baker'! This document is su()ect toreturn on demand! t may not (e copied or reproduced in %hole or in part %ithout the e*press %ritten consent o& Baker+ andmay not (e used directly or indirectly in any %ay detrimental to or in competition %ith Baker,s interest!

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1. Project Details

Customer. Petronas Carigali /dn! Bhd!

Customer Contact. arir B! usa

/u()ect. Cut and Pull 456 Casing

-ell 7um(er. /umandak Tepi "0 8 "09

Casing :ata

Si0e *eight 1l2/3t4 rade Connections Shoe 6e$th (!)

;456 Casing <9!0 =;50 >T 1+3< $";0'

1+<1 $";09'

13;3456 Casing ?5!0 7;50 BTC <0 $";0'

<90 $";09'

BH" Connection :etails.

Connection#$e / Si0e

Bo76(in.)

Pin 6(in.)

#orsional :ieldStrength(3t-l2s)

Reco!!ended ,a"e-u$ #or+ue

(3t-l2s)

?;456 @eg 9;34< 3;142 53+350 <3+000

;1426 AH 96 <6 +30 33+0



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2. Current Well Schematic

Baker Hughes Operational Procedure Page < o& 12


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Baker Hughes Operational Procedure Page o& 12


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3. Cut 9-5/8” 4 !!" Casin#

1! ake up the &ollo%ing BH".

te

m

:escription O:6 Connections /upplier

1! Taper ill 5 6 ? 456 @eg Pin p Baker

2! 5 6 ulti /tring Cutter %4 3D6 ni#es

5 6 ? 456 @eg Bo* * Bo* Baker

3! 7on @otating /ta(iliFer 5 D6 ? 456 @eg Bo* * Pin Baker

<! Crosso#er ? D6 D6 AH Bo* * ?;45 @eg Pin Baker

! H-:P4:P to sur&ace ;9456 D6 AH Bo* * D6 AH Pin @ig

;ote' Prior running the Casing Cutter< e reco!!end the CC= log to con3ir! the de$tho3 the collars. *e strongl advice not to cut near cou$ling.ood CB= =og ill also hel$ and save ti!e. Chec" see$ 3or the "nives (.5”>nives).

2! Aully close the kni#es and secure %ith duct tape around kni#es!

3! =o%er do%n the cutter (elo% rotary ta(le to do shallo% test!

<! /lo%ly start pump and monitor care&ully the /P reGuired to open the kni#es+ this /Prate %ill (e the minimum rate to operate the cutter do%n hole! "&ter the test+ secure againthe kni#es %ith duct tape! Check the tool prior to @H make sure the s%eep is set to thecasing coupling O:!

;ote' %void reverse circulating hile R? ith B?%. #his can da!age the$iston/$ac"ing o3 the tool and ill result in $oor $er3or!ance.

! @H BH" to proposed 456 casing cutting depth $@@@ !'! ake sure the casing tallyhas (een re#ie% and cut point is agreed (y client representati#e!

?! -ith no circulation+ esta(lish and record parameter $p+ do%n %eight+ A@T %ithoperating 50 @P I 100 @P'!

9! /tart rotation slo%ly 50 I 100 @P+ and then (ring up pump slo%ly to gi#e pressure dropat cutter! Jradually increase &lo% rate to gi#e piston pressure o& 5 $si seen at cutter!onitor cutting torGue and pressure drop at sur&ace &or an indication!

;ote' 3 the CC= is not availa2le< $u!$ to o$en the "nives ith SP, esta2lished during

sur3ace test and atte!$t to con3ir! the de$th o3 casing collar. 6o not rotate the$i$e. 6ou2le chec" de$th ith casing tallA !a"e sure e are not close to collar.Set the li!it to ea"est connection in the string.

Baker Hughes Operational Procedure Page ? o& 12


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4. Pull 9-5/8” 4 !!" Casin#

1! ake up the &ollo%ing BH".

te

m

:escription O:6 Connections /upplier

1! Bullnose < D6 A Bo* p Baker

2! tco /pear dressed %45!?556 7C Jrapple

5 6 ?;456 @eg Bo* K < D6 A Pin Baker

3! /pear E*tension 5 6 ?;456 @eg Bo* K Pin Baker

<! /pear /top /u( c4% 10;34<6 /top ring

10 L6 ?;456 @eg Bo* K Pin Baker

! Aishing Bumper /u( 9 L6 ? 456 @eg Bo* * Pin Baker

?! Crosso#er 9 L6 D6 AH Bo* * ? 456 @eg Pin Baker

9! H-:P4:P to sur&ace 96 D6 AH Bo* * Pin @ig

2! @H %ith spear "ssem(ly+ take parameter $p -eight+ :o%n -eight' (e&ore engage thecasing hanger!

3! Engage the casing+ pick up to pre;calculated 456 casing %eight o#er string %eight! &reGuired+ pressure can (e applied (elo% the 456 Casing Pack O&& to assist &reeing thecasing!

;ote' Can over$ull u$ to 8 o3 the B?% ea"est $oint/connection to get the casing3ree.

<! POOH casing+ secure casing at rig &loor+ release spear (y (ump do%n and rotate to right1 I 2 turn! =4: /pear assem(ly!

! "s per the program+ i& the casing not coming &ree at the &irst cut+ cut %ill (e higher untilcasing is &ree and casing %ill (e POOH and =4:! Then re;run the BH" M2 %ith )arringassem(ly and try to )ar &ree the stump+ %ith the increment o& the )arring loads as perspeci&ication o& the )ar! "&ter hour o& )arring+ let the )ar cool do%n and try again %ith

)arring! & no success+ consult to%n &or &urther action!

Baker Hughes Operational Procedure Page 5 o& 12


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5. Contin#enc$ Casin# %illin# o" 9-5/8” 4 !!" Casin#

$eration

The ET"= 7CHE@ Pilot ill should (e run %ith a shock su( and a su&&icient num(er o& :rill

Collars to pro#ide a %ide range o& milling %eights!Both %eight on the mill and @Ps %ill (edetermined (y penetration rate+ torGue+ and cuttings remo#al!Pilot milling %ith the ET"=7CHE@ inserts should (e treated as a machining process rather than a milling process!Once the optimum %eight and @P is esta(lished it should (e maintained!The ET"= 7CHE@ cutting structure allo%sup to ten N10 times the @OP $@ate o& Penetration'! This %ill reGuire a mud system capa(le o& suspending the cuttings and carryingthem to the sur&ace!/pecial consideration should also (e gi#en to additional sur&ace eGuipment to handle cuttings

B?% 6esign

The milling )o( %ill (e started %ith a &ull gauge taper mill on the (ottom o& the BH"! The : o& thetaper mill %ill (e the largest allo%a(le : &or the connection used! & milling %ill start shallo%+ drillcollars %ill (e run (et%een the pilot mill and the taper mill! Aor the greatest sta(ility ande*tended mill li&e the taper mill should (e placed directly (elo% the pilot mill! This hookup %illgi#e #ery little &le*i(ility! n high angle holes %ith poor casing centraliFation+ or any time hightorGue (ecomes a pro(lem+ it may (e necessary to change to a smaller O: taper mill! & there issuspected %ashout (elo% the casing shoe and a drilling rig %ith a kelly is (eing used drill collarsmay (e run (elo% the pilot mill so the taper mill %ill stay inside the casing stu( at all times! :rillcollar O: (elo% the mill should (e the largest &isha(le drill collars &or the casing siFe (eingmilled! " near (it sta(iliFer %ith a right;hand spiral is run directly a(o#e the pilot mill! Thesta(iliFer O: is the same as the pilot mill (lades! " shock su( and or nteG Thruster is run a(o#ethe near (it sta(iliFer! The /hock /u( O: %ill (e the recommended siFe &or the outer casing!

:rill collar %eight is critical &or mill li&e and cutting siFe! Aor milling 13;345 and ;45 casing+ ashock su( %ith t%o N2 stands o& 5 drill collars on top! This %eight is not reGuired &or %eight onmill (ut &or inertia to keep the mill turning smooth! & larger drill collars are not a#aila(le aminimum o& three N3 stands o& collars should (e used!

,illing luid

" i*ed etal Hydro*ide mud system has pro#en to (e the (est milling &luid a#aila(le atpresent! n the past H has sho%n an a(ility to carry a sustained 2+00M o& metal per hour+%ithout pro(lems during connections! :epending on cost and amount o& casing to (e milled thecustomer may choose a di&&erent mud system+ i& this is the case @!O!P! %ill ha#e to (e ad)usted

to suit! " mud system %ith a yield point o& 0 ; ?0 %ith a #iscosity o& 50 ; 100 is recommended!

Baker Hughes Operational Procedure Page o& 12


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Sur3ace D+ui$!ent

History has sho%n that no con#entional drilling mud cleaning system is up to the task o& casingmilling cutting remo#al at the ma*imum @!O!P!s! /e#eral designs ha#e (een used success&ully!n all cases there is a straight+ uno(structed and open line &rom the (ell nipple to the primarycleaning system! One type o& primary cleaning system is porta(le shakers and pits %ith the

partially cleaned mud (eing pumped to the rigs main shakers &or a &inal cleaning! The (estsystem to date is similar to an old style gum(o (o*! The gum(o (o* utiliFes a dou(le troughcoming &rom the (ell nipple! The top trough is slotted so that the mud %ill drain throughand the main portion o& the cuttings %ill roll into containers! The mud %ill then &lo% to the rigsdrilling shakers &or &inal cleaning! @emem(er+ (oth the mud and the sur&ace eGuipment must (ea(le to handle a sustained 2+00M o& metal cutting per hour! illing parameters %ill change %itheach )o(! "s a starting point+ rotary speed should (e 10Q @P+ pump rate 00Q JP and?+000M -!O!!

Shale shakers should be ftted with ALAP mesh screens to minimize recirculation o metalcuttings. The shakers should also be closely monitored when sweeps are being pumped,obsering or e!cess cuttings. "!cess cutting will indicate poor hole cleaning. #ncrease the

yield point and rotary speed by si! rpm accordingly.Place ditch magnets in the (ottom o& the shakers and in line o& &lo%! onitor+ clean and %eighthe metal sha#ings! Plot the metal cut #ersus the metal %eighed at the sur&ace! /igni&icantdi&&erence in %eights indicate hole cleaning pro(lem!



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load on the casing and at the !ill. B?% analsis and case histories shos this to2e the case. Sta2ili0ers are o3 an o$en $ro3ile in order to allo clear $assage o3the !illed cuttings.

;otes' #he B?% eight is su2stantiall greater than the e7$ected !illing eight. #his isto $rovide a large rotating !ass hich hel$s reduce torsional shoc".Belo the

!ill a relativel short asse!2l is used. #his li!its the rotating !ass 2elo(hich e7$eriences le3t hand tor+ue) and $revents an li"elihood o3 a 2ac"o332elo the !ill. Sta2ili0er si0ing is discussed later.

3! Continue to @H and tag the casing stu(!

<! Pick up to position the casing mill three &eet a(o#e the stu( and esta(lish parametersagain! " large torGue increase %ill indicate clearly i& %e are immediately in an eccentriccasing condition!

! Commence milling the casing using the parameter guidelines gi#en! ills do not

reGuire to (e Srun in6 optimiFed milling can commence immediately!

;otes' #he reco!!ended o$erating $ara!eters 3or the Pilot ,illing o$eration are as3ollos'

• E5 F G5 r$!

• E< F E5< l2s *oB

?! t is e*tremely important that progress is maintained at all times+ since rotation in onespot can Guickly cause e*ternal casing string damage!

9! Continue milling+ making alteration in the BH" as necessary!

5! Clean out trips should also (e made at appropriate times throughout the operation inorder to clean out any cement sheath+ %hich may remain!

! Once milling depth has (een reached+ circulate %ell clean!

10! POOH %ith illing "ssem(ly!

11! /hould the pilot milling not (e complete %ith the a(o#e assem(ly+ repeat the a(o#eprocedure %ith a ne% pilot mill!



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9.625in cut & pull procedure_r1

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