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Keywords: coil
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Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194274-MS
... Using advanced engineering models to predict shearing variables and physically validated test results from a 4-1/16″ K-BOS, it can be demonstrated that this new shearing and sealing method can shear various coil tubing from 1-1/2″ to 2-5/8″ 0.25″WT, 3-1/2″ 0.4″WT S-135 Drill Pipe, 3-1/8″ OD 0.83...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194265-MS
... with a relatively high pore pressure. A novel additive used during the drilling phase of the well was implemented and improved for coil tubing milling and cleanout procedure. Coil tubing application requires the use of robust fluid products due to the demanding environment. The novel additive was used to increase...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing & Well Intervention Conference & Exhibition, March 24–25, 2015
Paper Number: SPE-173658-MS
.... This paper is an overview of premature coil tubing and other well servicing equipment failures and pumping equipment damage that is related to MIC. Metallurgical, chemical and microbial analysis of the scale as well as representative water samples have been conducted to determine if the corrosion...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 25–26, 2014
Paper Number: SPE-168278-MS
... faced some challenges when servicing wells. Although well engineering programs have been developed to optimize the design of the wellbore; one of the limiting factors of wellbore design has become coiled tubing reach capability and set down force at the end of the coil. To address this concern...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing & Well Intervention Conference and Exhibition, March 27–28, 2012
Paper Number: SPE-154221-MS
... wells, electric line logging is most often used to acquire production data. In a horizontal well, both active and memory tools can be deployed on coil tubing to acquire production data. Using coil tubing for production logging has its own unique challenges, one of which is getting to TD without damaging...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing & Well Intervention Conference and Exhibition, April 5–6, 2011
Paper Number: SPE-143295-MS
... Abstract Well interventions in depleted gas wells are often seen as not being economically viable. Since the production rates in these wells are generally low, the pay-back time on the cost of a coiled tubing (CT) intervention could be rather long, making cash flow and earnings not attractive...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing & Well Intervention Conference and Exhibition, April 5–6, 2011
Paper Number: SPE-142769-MS
...Lockup Another important consideration in the design of any CT job in a highly deviated deep-reach well is lockup. This is where coil forms a helix inside the casing and high wall-contact forces prevent any additional forward movement of the tubing. While this effect will occur in all CT...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 23–24, 2010
Paper Number: SPE-130342-MS
... Abstract Coil Tubing technology grew as an off-shoot of the military needs during World War II. One such need was the requirement to spool continuous lengths of flexible pipeline across the English Channel, and the other post WWII need was to spool out long lengths of communication antenna from...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 20–21, 2007
Paper Number: SPE-106875-MS
... Abstract In the short history of coil tubing deployed electrical submersible pumping (ESP) systems, 7 inch production casing has been the norm. However, recent applications with low flow volumes and high wax content require a smaller diameter production casing to maintain flow velocities...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, March 23–24, 2004
Paper Number: SPE-89505-MS
... Abstract Reverse circulation has always been viewed with some level of suspicion and reverse circulation with coiled tubing has often been avoided at all costs. Yet, results of over 1600 CT operations involving reverse circulating in Alaska's oil fields, with just a handful of failures, has...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60706-MS
...Introduction There are several key advantages for using the coil in new expanded applications. The principle advantage of the coil tubing as a drilling system, especially from an underbalanced drilling perspective, is the coil tubing’s history in live well conditions. The second advantage...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60754-MS
... one is the subject of a great deal of research and largely reflects the need for compatibility between the drilling target, drilling fluid, and the bit type. A detailed discussion of these requirements is not given here; it is not unique to coil. Reason two is seldom a problem for small bits...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60756-MS
... The simplified case listed above is not truly representative of real life conditions as it ignores friction pressures in the coil and the motor, hydrostatic considerations and inertia effects. All of these "imperfections" are very significant and actually aid in the control of the PDM...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60751-MS
... Abstract Coil Tubing Drilling substantially lowered the cost for drilling Prudhoe Bay sidetrack wells. The program was nevertheless fraught with MWD (Measurement While Drilling) instrument failures. Downhole tool damage happened so often it was considered routine. Generally there was agreement...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60740-MS
... coil intervention rather than bullhead techniques essential. ( Table 2 ) Abstract Coiled tubing is used extensively in Colombia as the preferred alternative to conventional workover operations for reasons of costs, logistics, and security. However, wellbore conditions make few jobs "routine...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60702-MS
... be difficult. A new coil tubing tool or lateral entry guidance system has been developed to help locate and steer into these multiple completions. The tool uses a unique methodology for use with standard coil tubing to gain access into lateral legs. No special electrical conduits are required to operate...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, March 15–16, 1998
Paper Number: SPE-46018-MS
... during workovers and access to the reservoir with wireline/coiled tubing. In addition, the average ESP lifetime was initially well below the target runlife. The current ESP-completion design is described. Main operational problems experienced during two years of operation is highlighted. The revised...
Proceedings Papers

Paper presented at the SPE Gulf Coast Section/ICoTA North American Coiled Tubing Roundtable, February 26–28, 1996
Paper Number: SPE-36341-MS
... Abstract Due to the development of new tooling and the use of sound engineering coil tubing deployed thru-tubing gravel packs have become an economical and efficient means for the control of sand production. The authors of this paper have been involved with over forty such jobs in the past two...

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