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Journal Articles
SPE Prod & Oper (2021)
Paper Number: SPE-204432-PA
Published: 14 October 2021
... buckling, and early lockup. The challenge of effectively logging these ERWs is further complicated by constraints in the completion where electrical submersible pumps (ESPs) are installed, including a 2.4-in. bypass section. Although hydraulically powered CT tractors already existed, a slim CT tractor...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 22–25, 2021
Paper Number: SPE-204399-MS
..., a slim 2 ⅛ in. electric line tractor was utilised, in combination with a 2 ½ in. electrohydraulic linear actuator (stroker). The tractor conveyed the various straddle packer and spacer elements (straddle tubes) to depth and the stroker installed these components in the well to confirm their engagement...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 22–25, 2021
Paper Number: SPE-204432-MS
... these ERWs is further complicated by constraints in the completion where electrical submersible pumps (ESPs) are installed including a 2.4" bypass section. Although hydraulically powered coiled tubing tractors already existed, a slim CT tractor with real-time logging capabilities was not available...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202257-MS
... innovative and out of box solutions have been developed and applied in the field. CT tractor is one of the most promising of those solutions. Other solutions being use of friction reducer (FR) either chemically by pumping or mechanically like agitator/vibrator tools. Some of these solutions when applied...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199830-MS
... Abstract In high angle wells, downhole tractors can be used for electric line (e-line) deployed toolstring conveyance. This paper presents the job design, planning, and execution of a rigless zonal isolation in a gas well located in the Gulf of Mexico. Downhole tractors were used as the method...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199839-MS
... Abstract Until recently, electric line tractor driving speeds have been lying significantly below their true potential, because of elements related to design, working principles and system dynamics. Several case histories from recent electric line tractor conveyance operations illustrate...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199851-MS
... The 3.5-inch tractor ( Fig. 5 ) was designed based on a proven reliable design of the previous larger OD generations of tractors, while collapsing to 3.5-inch OD to allow passage through restrictions in the upper tubing. Once activated, the tractor expands outward up to 7.4 inches to grip across...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199871-MS
... The analyses predicted that target depth, TD, would be reached with either 2 or 2-3/8" CT in all candidate wells with use of the Slim Hydraulic Tractor; the amount of required force produced by the Slim Hydraulic Tractor was less for 2-3/8" CT compared to 2" CT. A decision was made to use...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 24–25, 2020
Paper Number: SPE-199809-MS
... is required to remove these components if they are no longer working or needed when they are a hinderance to well access or its productivity. This paper presents two case histories of completion component milling operations that were efficiently carried out by applying recent developments in combined tractor...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19737-Abstract
... tractors, resulted in the development and field use of a hydraulic tractor for large diameter holes. The new tractor was deployed on CT in between drilling each lateral, leaving the whipstock in place, allowing the CT to reach target depth (TD) in multiple laterals for stimulation operations...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196120-MS
... dry gas producer in the Liard Basin, Canada, which was completed in 18 stages, with 3 cluster per stage, a total of 54 clusters along a horizontal section of ~2000m. The top 11 stages were logged on tractor conveyed wireline with DAS and DTS data acquired over a 19-hour period. The acquisition covered...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194257-MS
... Figure 3 Monthly oil and gas well drilling from the Energy Information Administration. Unfortunately, wireline tractors have a poor reputation for reliability because their overall design is complex, they have to perform in challenging downhole environments, and they are maintenance...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194252-MS
... The e-line tractor has successfully conveyed toolstrings through some of the longest, most extreme laterals used in the oil and gas industry. For example, in a recent case in Russia in 2017, tandem e-line tractors were used to perform LWT, collecting production logging data in both the down...
Proceedings Papers

Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, March 26–27, 2019
Paper Number: SPE-194285-MS
... Abstract A new family of 2 1/8-in. wireline tractor and intervention tools has been developed to enable logging and intervention services in high-temperature deviated or horizontal wells while providing high power levels and maintaining excellent surface communication over long cables. In many...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 12–15, 2018
Paper Number: SPE-192672-MS
...-tubing methods. These methods are time consuming, labor intensive, require a larger equipment footprint, with possible HSE risks involved. Mubadala Petroleum in Thailand has seen a significant increase in horizontal and high deviated wells over the past few years. The wireline tractor technology has been...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, August 27–29, 2018
Paper Number: SPE-191095-MS
.... The study, driven by cost effective initiatives, compared wireline tractor conveyed perforation (run in normal and reverse deployment modes) and coiled tubing conveyed perforation (again, run in normal and reverse deployment modes). The aim of this study is to provide the most efficient technique to achieve...
Proceedings Papers

Paper presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, April 23–26, 2018
Paper Number: SPE-192301-MS
..., compact, and record-setting high pull-force tractor that enables rig-less stimulation, thereby maximizing production and cost effectiveness. A development project evaluated multiple tractor design concepts, yielding a new generation of an ultra-slim (2-1/8 inch OD) and high pulling force tractor...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 27–28, 2018
Paper Number: SPE-189906-MS
... such as lock-up. The WL cannot reach the target depth. To address these challenges, the oil industry introduced well tractors that are combined with CT and WL to offer a significant improvement in well accessibility for all types of open- hole horizontal wells by providing extra pulling force to pull CT and WL...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 27–28, 2018
Paper Number: SPE-189923-MS
... Abstract This paper presents the design features and the results from field trials of a new wireline tractor developed specifically for through-tubing intervention into producing horizontal wells with barefoot completions. Many Middle East horizontal wells have barefoot completions in which...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 27–28, 2018
Paper Number: SPE-189926-MS
... Abstract A wireline tractor has been developed with an integrated individual arm-closing mechanism that enables losing traction in only one arm while all the others are delivering the traction necessary to overcome the increased force in navigating an obstacle. Wireline tractors convey logging...

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