This document provides an overview of coiled tubing, including its history, equipment, and applications. It discusses how coiled tubing originated from military projects during World War II and was first used in the oilfield in 1962. The key components of a coiled tubing unit are described, including the injector, reel, control house, and other equipment. Common applications of coiled tubing in the oil and gas industry involve well intervention operations such as drilling, logging, perforating, and more. A comparison is made between addressing blockages in wells and arteries.

1. A Brief Introduction to Coiled Tubing What is it? What do we do with it? Li Gao, PhD Research Department Halliburton

2. Outline Halliburton Company Coiled Tubing history What is it? Equipment What do we do with it? Applications PE vs. MD

3. Funded in 1919 Offers the world's broadest array of products, services and integrated solutions for oil and gas exploration, development and production. $35B market cap, $22B revenue in 2006 Employs 100,000 people in more than 120 countries Halliburton Company

4. CTAT Time Line Coiled Tubing History: Military Origin D-Day, Pluto Project P ipe L ine U nder T he O cean British engineers developed long, continuous pipeline to supply Allied forces Twenty-three 3” pipelines across the English channel 30 to 70 miles long Fabricated from 4000’ sections, Butt welded together

5. Coiled Tubing History: Military Origin Submarines Antenna Deployment System Developed by Bowen Tool Deployed 5/8” polyethylene antenna to surface from submerged submarine Packer device to seal around antenna Evolved into Coiled Tubing Injector Head

6. 1st Coiled Tubing Work in the Oilfield California Oil Company, 1962 Bowen Oil Tool fabricated reel and equipment Reel: 1.315” O.D. Pipe, 50’ sections butt welded, 15000’ total length Used for washing out sand bridges on oil and gas wells

7. Coiled Tubing Unit Tubing Injector Tubing Guide Reel Control House Well Control Equip. Crane Power Pack Stripper

8. Tubing Steel pipe 1” OD to 3.5” OD Yield strengths of 70,000, 80,000, 90,000, 100,000 psi Relatively thin wall Finite life due to fatigue cycles (bending)

9. Hydraulically powered counter rotating chains Gripper blocks mounted in chain assembly Injector designation based on maximum pull capability, e.g 30K can pull 30,000 pounds Injector

10. Guides tubing into injector Large radius for best tubing life Tubing Guide (Guide Arch)

11. Used to store tubing Large radius for best tubing life Level wind assembly to wrap tubing on and off reel Reel

12. Operator station for unit control Typically mounted behind reel Control House

13. Coiled Tubing: What do we do with it? Uncoiled into live oil and gas wells to perform maintenance operations placement of chemicals cleaning manipulation of mechanical tools milling / drilling logging / perforating

14. CT Applications For vertical, horizontal and deviated wells, both on land and offshore: Drilling Logging Perforating Stimulation Fluid displacement Sand control CT conveyed perforating Wellbore cleanout Remedial cementing Setting and retrieving bridge plugs Permanent installations Running packers CT as flowline Removal of wax, hydrocarbon or hydrate plugs Flow control of horizontal and deviated completions Fishing

15. A Comparison between … Sand, hydrates, etc. deposits Cholesterol plaque built up Well intervention Percutaneous Coronary Intervention (PCI) PE’s world MD’s world Well intervention engineer using Coiled Tubing GoFlo® Flow Remediation Service Stenotic coronary arteries Clogged/blocked wellbore/pipeline Interventional Cardiologist Laser Angioplasty

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