Transcription
Sound Coiled-Tubing Drilling PracticesFinal Report(February – August 2001)Prepared for:U.S. DEPARTMENT OF ENERGYNATIONAL ENERGY TECHNOLOGY LABORATORYU.S. DEPARTMENT OF THE INTERIORMINERALS MANAGEMENT SERVICEPrepared by:Mr. Thomas WilliamsMr. Greg DeskinsMAURER TECHNOLOGY INC.2916 West T.C. JesterHouston, TexasMr. Stephen L. WardADVANTAGE ENERGY SERVICES LTD.Mr. Mel HightowerConsulting EngineerTR01-21September 2001
DisclaimerThis report was prepared as an account of work sponsored by agencies of the United StatesGovernment. Neither the United States Government nor any agency thereof, nor any of theiremployees, makes any warranty, express or implied, or assumes any legal liability orresponsibility for the accuracy, completeness, or usefulness of any information, apparatus,product, or process disclosed, or represents that its use would not infringe privately ownedrights. Reference herein to any specific commercial product, process, or service by trade name,trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,recommendation, or favoring by the United States Government or any agency thereof. Theviews and opinions of authors expressed herein do not necessarily state or reflect those of theUnited States Government or any agency thereof.All applicable federal, state and local governmental rules, regulations or restrictions, now ineffect or which my be promulgated, take precedence over the suggestions in this manual. Nosuggested method, practice, precaution or program set forth in this guide shall be deemed toestablish a legal standard of conduct or a legal duty, the violation of which would constitutenegligence of any degree in any legal proceeding.- ii -Sound CTD Practices
AcknowledgementsWe gratefully acknowledge the support and contributions of the project managers from theMinerals Management Service (Bill Hauser) and the Department of Energy (Roy Long).A significant volume of technical data was contributed to this manual by Maurer Technologyfrom technical reports and other deliverables of the DEA-67 joint-industry project on coiledtubing and slim-hole operations.The authors also appreciate the contributions of John Misselbrook of BJ Services, who reviewedthe draft manual and provided a variety of very useful comments.- iii -Sound CTD Practices
Table of Contents1. INTRODUCTION. 11.1 Organization of the Manual . 11.2 Basic Procedure for CTD . 22. PRE-JOB PLANNING – ENGINEERING. 52.1 Overview of Engineering Analysis . 52.2 Introduction to CTD . 62.3 Initial Well Research and Planning . 72.3.1 Well Research. 82.3.2 Well Planning . 92.4 Well and Site Preparation. 112.5 CTD Surface Equipment . 112.5.1 Coiled-Tubing Equipment . 122.5.1.1CT String . 122.5.1.2CT Injector Head. 152.5.1.3CT Reel . 162.5.1.4CT Power Pack. 172.5.1.5Crane and Substructure. 182.5.1.6Pipe-Handling Equipment . 192.5.2 Well-Control Equipment. 202.5.2.1Well-Control Equipment Testing . 232.5.2.2Well-Control Procedures and Responsibilities . 232.5.3 Ancillary Surface Equipment . 242.5.4 Monitoring and Recording Equipment. 252.5.4.1CTU Monitoring Equipment. 252.5.4.2Drilling Fluid Monitoring Equipment. 262.5.4.3Wellbore Steering and Navigation. 262.5.4.4Formation Evaluation. 262.5.5 Safety and Emergency Equipment . 27- iv -Sound CTD Practices
Table of Contents2.6 Directional Planning . 272.7 Drilling Fluids and Wellbore Hydraulics . 292.7.1 Hole Cleaning and Annular Velocity . 332.7.2 Hydraulics Program. 342.8 Window Milling . 352.9 Open-Hole Logging . 382.10 Wellbore Tubulars and Wellheads. 382.10.1 Wellheads . 402.10.1.1 New Well . 402.10.1.2 Re-entry Well . 422.11 Liner Cementing. 423. PRE-JOB PLANNING – ON-SITE . 443.1 Well Planning/Preparation. 443.2 CT Management and Safe Operations . 483.3 Hydraulics . 503.4 Equipment Maintenance. 513.5 Contingencies . 523.6 Well Control . 534. OPERATIONS EXECUTION. 544.1 Safety. 544.2 Data Acquisition . 554.3 Bottom-Hole Assembly and CT Deployment . 564.3.1 Typical Bottom Hole Assembly . 574.3.1.1CT Connector (CTC). 574.3.1.2Dual Check Valves . 594.3.1.3Hydraulic Disconnect . 594.3.1.4Circulation Sub . 594.3.1.5Non-Rotating Joint . 594.3.1.6Orienter and Equalizing Sub . 604.3.1.7MWD Equipment. 60-v-Sound CTD Practices
Table of Contents4.3.1.8Downhole Mud Motors . 614.3.1.9Drilling Bits. 634.3.2 Tripping and Wiper Trips . 654.4 Drilling Fluid . 674.5 Window Milling Operations . 684.5.1 Cement Whipstock . 694.5.2 Mechanical Whipstock. 704.6 Production Liner: Running and Cementing . 724.6.1 Liner Running: Blank Liner . 734.6.2 Liner Cementing . 754.6.3 Liner Running: Pre-Perforated or Slotted Liner. 764.7 Logging/Perforating. 774.8 Operational Problems. 794.8.1 Lost Circulation . 804.8.2 Stuck Pipe . 824.8.3 Open-Hole Sidetracks . 854.8.3.1Sidetrack from a Cement Plug . 854.8.3.2Sidetrack from a Mechanical Plug. 874.8.3.3Open Hole . 894.9 Well Control . 914.10 Underbalanced Drilling . 944.10.1 Underbalanced Drilling Applications . 954.10.2 Deployment Systems . 964.10.3 Mechanical Considerations . 994.10.3.1 Hydraulically Operated BHA Components . 994.10.3.2 Tubing Collapse Pressure. 1004.10.3.3 H2S Corrosion/Embrittlement . 1004.10.4 Surface Equipment. 1014.10.5 Well Control. 1025. POST-JOB REVIEW. 1035.1 CTD Planning and Execution Review. 103- vi -Sound CTD Practices
Table of Contents5.2 CTD Operations Review. 1045.3 Action Plan. 1066. CTD REFERENCES . 107ATTACHMENTSAttachment 1: Example CTD Check Lists .A-1Attachment 2: Example CTD Sidetrack Well Summary.A-7Attachment 3: Example CTD Wellbore Diagram.A-9Attachment 4: Example CTD BOP Design .A-11- vii -Sound CTD Practices
1. Introduction1.1 ORGANIZATION OF THE MANUALThis Coiled-Tubing Drilling (CTD) Sound Practices Manual provides tools needed by CTDengineers and supervisors to plan, design and perform safe, successful CTD operations. Asemphasized throughout, both careful planning and attention to detail are mandatory for success.A bibliography of many useful CTD references is presented in Chapter 6.This manual is organized according to three processes: 1) Pre-Job Planning Process,2) Operations Execution Process, and 3) Post-Job Review Process. Each is discussed in alogical and sequential format.I.PRE-JOB PLANNING (Chapters 2 and 3)The purpose of the pre-job planning proce
This Coiled-Tubing Drilling (CTD) Sound Practices Manual provides tools needed by CTD engineers and supervisors to plan, design and perform safe, successful CTD operations. As emphasized throughout, both careful planning and attention to detail are mandatory for success. A bibliography of many useful CTD references is presented in Chapter 6.File Size: 1MBPage Count: 138People also search forcoil tubing drill out procedure chemicalcoil tubing drill outopen hole management checklist fall prote coil tubing jobscoil tubing drill outcoil tubing jobs
