Coiled tubing drilling: Real time MWD with dedicated powers to the BHA
Abstract
This paper describes and analyzes the development and ongoing field trials of a Real Time MWD Coiled Tubing Drilling System. The new system holds great promise for advancing the state of coiled tubing drilling for certain applications. The system is designed for through-tubing, short radius re-entry and drilling highly deviated wells as horizontal laterals to a geologic target with minimum wellbore tortuosity. Currently, 4-1/2-in production tubing is the smallest re-entry candidate. Real time MWD and Bottom Hole Assembly (BHA) control is achieved by the use of a combination hydraulic and electric umbilical internal to the coiled tubing (CT), allowing continuous data collection and selective surface control of the BHA components. This communication line allows orientation in 10{degree} increments (or less) while drilling, applies weight-on-bit and operates a reusable circulating valve. In addition, the umbilical provides real-time monitoring of weight-on-bit, circulating pressures of the drilling fluid internal and external to the BHA, dedicated hydraulic system bottom hole pressure, downhole temperature and survey data from logging equipment.
- Authors:
- Publication Date:
- OSTI Identifier:
- 434040
- Report Number(s):
- CONF-960525-
TRN: IM9709%%474
- Resource Type:
- Conference
- Resource Relation:
- Conference: 28. offshore technology conference, Houston, TX (United States), 6-9 May 1996; Other Information: PBD: 1996; Related Information: Is Part Of 28. annual offshore technology conference: Proceedings. Volume 4: Field drilling and development systems; PB: 942 p.
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; MWD SYSTEMS; DESIGN; FIELD TESTS; DRILLING EQUIPMENT; REAL TIME SYSTEMS; WELL DRILLING; DIRECTIONAL DRILLING; PROCESS CONTROL
Citation Formats
Leismer, D, Williams, B, and Pursell, J. Coiled tubing drilling: Real time MWD with dedicated powers to the BHA. United States: N. p., 1996.
Web.
Leismer, D, Williams, B, & Pursell, J. Coiled tubing drilling: Real time MWD with dedicated powers to the BHA. United States.
Leismer, D, Williams, B, and Pursell, J. 1996.
"Coiled tubing drilling: Real time MWD with dedicated powers to the BHA". United States.
@article{osti_434040,
title = {Coiled tubing drilling: Real time MWD with dedicated powers to the BHA},
author = {Leismer, D and Williams, B and Pursell, J},
abstractNote = {This paper describes and analyzes the development and ongoing field trials of a Real Time MWD Coiled Tubing Drilling System. The new system holds great promise for advancing the state of coiled tubing drilling for certain applications. The system is designed for through-tubing, short radius re-entry and drilling highly deviated wells as horizontal laterals to a geologic target with minimum wellbore tortuosity. Currently, 4-1/2-in production tubing is the smallest re-entry candidate. Real time MWD and Bottom Hole Assembly (BHA) control is achieved by the use of a combination hydraulic and electric umbilical internal to the coiled tubing (CT), allowing continuous data collection and selective surface control of the BHA components. This communication line allows orientation in 10{degree} increments (or less) while drilling, applies weight-on-bit and operates a reusable circulating valve. In addition, the umbilical provides real-time monitoring of weight-on-bit, circulating pressures of the drilling fluid internal and external to the BHA, dedicated hydraulic system bottom hole pressure, downhole temperature and survey data from logging equipment.},
doi = {},
url = {https://www.osti.gov/biblio/434040},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}