Electric Line Tractor-Based Conveyance in High Temperature Wells: A Collection of Local Case Stories

Peoples, M D; Hammill, Tim; Alferez, Olivier; Murrill, Gary

doi:10.2118/168243-ms

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Electronic components using high ceramic and silicon on insulator materials make it possible for all electronic components to be able to operate at 200°C. The use of special seals and O-rings that are not easily deformed by heat can be used to prevent seal failure due to fluid intrusion and downhole hydraulic losses [38]. In addition, it is necessary to integrate high temperature and pressure sensors in the traction robot to transmit real-time downhole operation data.…”

Section: High Safety Small Size and Large Tractionmentioning

confidence: 99%

Research status and development trend of traction robot of coiled tubing

Zhao,

Wang,

Chen

et al. 2023

J. Phys.: Conf. Ser.

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Coiled tubing (CT) is prone to buckling and locking due to axial friction when extending in large displacement directional wells and horizontal wells. The traction robot of CT can provide axial traction, which can fundamentally address the problem of difficult downward entry of CT. The operation principle, size, traction force, traction speed and other technical indicators of the existing more cutting-edge types of traction robots are analyzed, and the critical structural features of traction robots are summarized. The application prospect of drilling bridge plug technology and drilling technology of the traction robot is put forward. The main points of the research on the traction robot are summarized to provide a concise reference for the future development direction.

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Section: High Safety Small Size and Large Tractionmentioning

confidence: 99%

Research status and development trend of traction robot of coiled tubing

Zhao,

Wang,

Chen

et al. 2023

J. Phys.: Conf. Ser.

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“…The motors used with this system are single-phase AC asynchronous motors. The tool can be run at high temperatures over 350°F (Peoples et al 2014). The disadvantage is that this is also the most inefficient system.…”

Section: Spe-179044-msmentioning

confidence: 99%

Wireline Tractors and Mechanical Services Tools: Comparative Study of Technical Solutions

Sheiretov

2016

Day 2 Wed, March 23, 2016

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Numerous lessons have been learned from the use of a wide selection of technological elements in the construction of wireline tractors and mechanical services tools. It is well-known that downhole tool design is challenging and requires the use of the latest developments in physics, material science, electronics, mechanical engineering, and software because the tools operate in very harsh environments characterized by extreme pressures, high temperatures, and corrosive fluids. Wireline tractor and mechanical services tools face not only all of these difficulties but also some unique challenges. For example, the tools operate at much higher power levels compared with other wireline tools. The efficient delivery and use of power downhole is an active area of technology development. Another challenge is that the tools interact intensively with the borehole walls or elements of the well completion by exerting very large mechanical forces to tractor along the well, exercise completion elements, mill or cut tubing, remove and collect debris, set or pull plugs, and fish stuck tools. They are also subjected to high shock levels from explosive devices. All of these lead to heavily stressed components.A comparative study has been conducted of a broad range of technologies, from the evaluation of single components such as electric motors to entire systems such as the selection of a drive mechanism, power delivery scheme, or traction control system. The study discusses single-and three-phase AC and DC motors, AC and DC power delivery schemes, reciprocation versus continuous drive mechanisms, power efficiency of downhole systems, downhole electronics challenges, traction control mechanisms, and the impact of technology selection on functional performance and reliability. The choice of components and technologies is not purely a technical decision, and difficulties and best practices related to selection are discussed. Selection criteria also include rigorous qualification testing.The advantages and disadvantages of a broad selection of technological elements have been identified. The value of instrumentation, real-time data acquisition, control, and automation is emphasized. Additionally, the importance of proper job planning is discussed and recommendations made for types of simulations that must be included in job planner software.

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New Electronics Ensure Increased Operational Efficiency in Highly Deviated, High Temperature Gas Well

Sagr¹,

Al-Sadoon²

2015

Day 1 Mon, September 28, 2015

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This paper describes a case story from Saudi Arabia where an extreme downhole environment required new developments in electric line intervention technology. This operation was the first time the new DC electronics package was used in the Middle East. A major operator needed to test casing integrity and perform a perforation on a high pressure/high temperature well (310°F, 91° horizontal well). Standard wireline conveyance was not an option, pump down logging wasn’t available, and coiled tubing was too time consuming. New technology had to be considered. Multiple feasibility studies, including heat studies, were performed to verify that an e-line tractor equipped with newly developed DC electronics equipment would be able to execute the job under the extreme well conditions. The job consisted of two runs; the first conveyed a cement bond log and a multi calliper imaging tool to 18,725 ft. while the second run conveyed a 3 3/8" gun to perforate the desired zone at 18,725 ft. The e-line tractor worked as planned despite the high temperatures and the 18,725 ft. extended reach section. Using an e-line solution provided better data quality by having access to more advanced depth determination tools. Costs were reduced and the operational efficiency was increased by saving time. The environmental impact and risks were also reduced as the e-line solution eliminated mobilizing a rig.

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Electric Line Tractor-Based Conveyance in High Temperature Wells: A Collection of Local Case Stories

Cited by 4 publications

References 3 publications

Research status and development trend of traction robot of coiled tubing

Research status and development trend of traction robot of coiled tubing

Wireline Tractors and Mechanical Services Tools: Comparative Study of Technical Solutions

New Electronics Ensure Increased Operational Efficiency in Highly Deviated, High Temperature Gas Well

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