Drilling Technical Conference 2015- Deep-Tech : Exploration for Perfection

After the successful kick off of 1st Drilling Conference in 2011, Drilling Department

hosted the 3rd Drilling Technical Conference on 21-22nd January 2015. Distinguished

representatives from esteemed operators and service providers of the oil & gas industry

participated to share their knowledge in their respective fields.

The conference witnessed technical sessions on various topics and advancements in

Drilling Technology. The following papers were presented over the two eventful days.

21.01.2015 (DAY -1)

TECHNICAL SESSION – I (PAPER – I)

NEW TRENDS IN DRILLING TECHNOLOGY

PRESENTATION BY

MR. BARZIS IRANI FROM APS TECHNOLOGY

The presentation covered some of the downhole directional and optimization tools manufactured by APS

technologies.

The presentation talked about the various advantages and usefulness of Active Vibration Dampeners like

mitigating severe Bit and BHA vibrations, increasing bit life, improving drilling efficiency, increasing

penetration rates and significant cost / foot savings.

The presentation also discussed the Electromagnetic MWD and its advantages like improved reliability,

faster data transmission rates, no LCM restrictions, increased depth capabilities and 2 way

communication. Few slides were also presented on the Rotary Steerable Motors regarding its flexibility,

reach and simplicity.

TAKE AWAY

Active Vibration Dampeners for mitigating Bit and BHA vibrations, increasing bit life, improving

drilling efficiency, increasing penetration rates and reducing cost / foot. These tools are to be hired from

service providers and incorporated while drilling the 12.1/4 inch hole section below 2000m and the 8.1/2”

hole section.

21.01.2015 (DAY -1)

TECHNICAL SESSION – I (PAPER – II)

OFFSHORE DRILLING – OPENING UP A NEW ERA FOR OIL

PRESENTATION BY

MR. GHANA GOGOI FROM OIL INDIA LIMITED

Mr Ghana Gogoi, Head – CEMG presented on what are the challenges in the offshore front under NELP

/ PSC regime and the measures to be taken for facing those challenges.

E&P experts have said the future of fossil energy lies in deep water offshore or the Frontier areas of the

Globe. After the Dhirubhai discovery, new vistas have opened up in Indian waters for more exploration

and development. Offshore Gas hydrates are another big emerging picture for world energy supply and

Indian Coastal areas have huge potential of gas hydrates. Although technology is in its nascent stage the

most experienced offshore operators will take the first bite of the cake once technology is developed.

Oil is a very strong onshore E&P national oil company. However, Oil’s onshore experience is no more

sufficient as the big opportunity has shifted to offshore. At the same time Oil’s offshore focus has been

lost from the late nineties onwards.

The various deepwater challenges like environmental challenges, technical challenges, riser challenges

and station keeping challenges needs to be understood and mitigated for a successful offshore project.

The presentation summarized that the E&P business in future will run on PSC model, offshore

environment is completely different from onshore for which skill development and technology use are

very essential and for OIL to catch the big picture in offshore areas all offshore blocks should be brought

under offshore division.

21.01.2015 (DAY -1)

TECHNICAL SESSION – I (PAPER – III)

DRILLING IN MIZORAM – A CRITICAL REVIEW

PRESENTATION BY

MR. GAUTAM NAHA BISWAS FROM OIL INDIA LIMITED

Mizoram is considered a hydrocarbon prospective area considering the fact that it is surrounded by Gas

fields of Bangladesh, Myanmar and Tripura. Little geo-scientific data, along with difficult logistics and

limited working window compared to rest of India, makes Mizoram a challenging area for drilling. But

despite all the hurdles drilling activities for the first proposed well AIBAWK-1 (TD= 4500m) have been

started and presently a depth of 2197m has been achieved. Drilling in Mizoram – A critical review by

Mr. Gautam Nahar Biswas covered the phase wise approach for drilling along with the challenges faced.

(22.01.2015) DAY -2

TECHNICAL SESSION - II

PAPER – IV

DRILLING OPTIMIZATION AND AUTOMATION

PRESENTATION BY

MR. STEPHEN PINK FROM NATIONAL OILWELL VARCO

The presentation covered how Dynamic Drilling Solutions built on accurate data can improve drilling

performance. Dynamic Drilling Solutions focuses primarily on instrumentation, sensors, measurement

tools, directional, dynamics and software products. Its services includes tiered suite of drilling

optimization and automation services, including data management, surface data collation, integration,

visualization, memory-based drilling optimization, pulsed RT drilling optimization, and application

management to full WDP automation packages. The process involves analysis, planning, execution and

evaluation.

(22.01.2015) DAY -2

TECHNICAL SESSION - II

PAPER – V

APPLICATION OF RSS FOR DRILLING OPTIMIZATION

PRESENTATION BY

MR. SUKESH GANDA SCHLUMBERGER ASIA SERVICES LTD

ROTARY STEERABLE SYSTEMS – APPLICATION FOR DRILLING

OPTIMIZATION

The presentation discussed in detail the advantages of drilling with Rotary Steerable Systems viz: steady

deviation control, less drag, faster ROP, less buckling risk, cleaner and smoother hole, less risk of stuck

pipe, longer reach (ERD), complex well design and good TVD control. Case studies in India have shown

that RSS applications have led to 450% increment in ROP, average reduction in number of trips from 8

to 2 and average reduction in equivalent drilling days from 34 to 5 days.

(22.01.2015) DAY -2

TECHNICAL SESSION - II

PAPER – VI

SCIENCE BEHIND BIT

PRESENTATION BY

MR. ASIF ZAFAR FROM HALLIBURTON DRILL BIT AND SERVICES

The presentation covered advancements in Fixed Cutter Drill Bit Technology, advancements in Roller

Cone drill bit technology, developments in Concentric Hole Enlargement Tools and unique Coring

System Designs.

The important advancements made in fixed cutter drilling technology are the multi level force balancing,

improved PDC cutter technology and impregnated drill bits. The advanced energy balancing technology,

engineered hydraulics and dual seal dual compensation bearing design are some of the major

advancements in Roller Cone drill bit technology.

TAKE AWAY

To procure new technology fixed cutter bits for using with Rotary Steerable Systems and high

performance Roller Cone Bits for optimizing drilling performance.

(22.01.2015) DAY -2

TECHNICAL SESSION - III

PAPER – VII

CEMENTING OVERVIEW AND APPLICATION OF LIGHT WEIGHT

SLURRY

PRESENTATION BY

MR. PRANAB KOLACHANA FROM LAND SERVICES AND WELL

SERVICES SCHLUMBERGER

LiteCRETE and CemCRETE cementing technology optimizes particle size distribution, maximizes solid

content, improves slurry properties and enhances set cement mechanical properties. Case studies have

shown that its low density prevent losses, its high solid content increases compressive strength, its gas

tight properties prevents gas migration and its design improves mud removal.

CemSTRESS cementing concept can be applied for long term well integrity. The design provides a

cement system which is flexible, improves integrity in dynamic stress environment and can withstand

repeated stress cycles.

(22.01.2015) DAY -2

TECHNICAL SESSION – III

PAPER – VIII

PRESENTATION BY

MR. SUNIL DOODRAJ AND K K NAIK GM; CAIRN INDIA

DRILLING PERFORMANCES, ACHIEVEMENTS AND BEST PRACTICES IN

CAIRN ENERGY

Cairn India’s Zero Tolerance & Life-Savers provide clear and simple “do’s and don’ts” covering

activities with potential safety risk. The Zero Tolerance and Life Savers are rules that are linked to

controls and barriers which, when used properly, prevents or avoids Injury to people. Cairn Energy

follows stringent HSE practices and do not hesitate to shut down rigs on critical HSE non compliance.

Drilling performances are optimized by deploying custom designed rapid rigs for development drilling,

customized pad design for development drilling, use of environment friendly synthetic based mud for

preventing shale instability and associated problems, use of unitized well heads, proper bit selection,

Geomechanical modeling and optimum cement slurry design.

(22.01.2015) DAY -2

TECHNICAL SESSION – III

PAPER – IX

LINER TOP REPAIRING BY SQUEEZ CEMENTING

PRESENTATION BY

MR. B. GOSWAMI AND

B. GANGULI OIL INDIA LIMITED

A case study was presented regarding repairing of liner top by Oil India Limited’s

Cementing Team when the liner top packer was damaged beyond repair. Cement was

squeezed by hesitation method following a successful injectivity test. Subsequent CBL-

VDL showed good cement bonding and cement top was found near the liner top. Pressure

testing as per normal industry practice was also successful. The innovative process saved

Oil India Limited of around 15 Rig days.

(22.01.2015) DAY -2

TECHNICAL SESSION – III

PAPER – X

VISION DRILLING INTROSPECTION AND PERCEPTION

OIL INDIA LIMITE

BY

MR. SANJIB GOGOI FROM OIL INDIA LIMITED

The different measure that needs to be taken for reducing non productive time was discussed in the

presentation. Various measures for improving drilling performance were also presented. The replacement

of old AC-SCR drilling rigs, procurement or hiring of mobile rigs for carrying out extensive production

testing, PAD concept for development drilling, procurement of new technology roller cone, fixed cutter

and hybrid bits, bit consignment concept, use of various downhole and surface drilling optimization tools

and bench marking of drilling operations is expected to improve the cycle speed by at least 40%.

(22.01.2015) DAY -2

TECHNICAL SESSION – III

PAPER – XI

BY

MR. GANDHI FROM NABORS INDIA PVT LTD

DRILLING CHALLENGES IN HIGH PRESSURE AND HIGH TEMPERATURE

ENVIRONTMENT

The challenges for drilling in high pressure and high temperature environment involves the surface

equipment, drill through equipment, downhole equipment, drilling practices and well control. Kick

detection and control is challenging due to solubility of gas in OBMs and requires special attention.

Elastomers, Seals and Other Pressure Control Elements used are to be compatible to withstand anticipated

temperature and should also be chemically compatible to the drilling fluids used.

The key to success in high pressure and high temperature environment are use of high temperature proven

tools and fluids, engagement of competent service providers, involving service providers in decision

making and problem solving, knowledge and best practices sharing between operating companies and

incentive to R&D for developing technology and techniques to combat high temperature challenges.

TECHNICAL SESSION – III

PAPER – XII

PRESENTED BY GAURAV MARWAH FROM

BAKER AND HUGHES

CASING AND LINER DRILLING TECHNOLOGY

The presentation was about advantages and usefulness of using Baker Hughes SureTrak technology for

liner drilling & cementing and FastTrak technology for fluid analysis sampling and testing.