Wireline Well Tractor: Case Histories

Hallundbæk, Jørgen; Østvang, Knut; Haukvik, John; Butler, P. M.; Skeie, Terje

doi:10.4043/8535-ms

Cited by 10 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of tractors has been considered very cost-effective compared to other operations, such as coiled tubing (CT) or snubbing (Hallundbaek et al 1997), and thus able to improve economics of diverse well workovers aimed toward increasing the recovery factor of even marginal reserves. Because of its light and simple equipment and reduced crew size, this tool becomes a good choice with respect to health, safety, and the environment (HSE).…”

Section: Introductionmentioning

confidence: 99%

Wellbore Investigation and Perforation of a Highly Deviated Well Using a Wireline Tractor and Strip Guns Offshore Angola

2014

View full text Add to dashboard Cite

Since the early decades, through-tubing wireline (WL) interventions have been a necessary routine of the oil and gas industry. The practice of well intervention has benefited from the evolution of WL tools on its imposed quest to keep up with the trend of increasing complexity in wellbore and completion development.Deployment of WL tools through tubing, from early and simple devices (e.g., gauge cutters, lead impression blocks, tubing plugs) to state-of-the-art logging and well intervention prototypes, experienced a significant leap forward with the application of electric line (e-line) tractors in the mid-1990s. Since then, many oil companies have implemented the use of tractors to make a great variety of rigless well interventions feasible, both technically and economically.Over these lines, WL perforating of long, highly deviated wells through tubing, especially those with relevant ID restrictions, indubitably requires challenging, ingenious, and risked-assessed selection of the most convenient perforating and deployment systems. Working in remote locations, where availability of specialized tools and qualified personnel on short notice are often limited, adds an extra burden to the everyday complexity of operations.This paper describes the unconventional, but successful, use of a WL tractor to (1) investigate a tubing-conveyed perforating (TCP) completion failure and (2) save the highly deviated "S-shaped" well from a costly offshore rig workover by perforating with a strip gun deployed more than 14,000 ft from surface. The well is located in Angola at a water depth of 1,206 ft. IntroductionWithin the oil and gas industry, the term "WL" usually refers to a cabling technology used by operators to lower equipment or measurement devices into a well for the purposes of well intervention, reservoir evaluation, and pipe recovery.WL operations, and more specifically e-line interventions, have remained an essential tool for geological and reservoir evaluation (i.e., openhole logging), as well as a means to determine hole integrity and proper well construction (i.e., cased hole logging). Additionally, well intervention by means of e-line is a cost-efficient method of reaching operational objectives. The tools and equipment are conveyed into wells either through an "open hole" without surface pressure, or through special pressure retaining equipment, which allows the toolstrings to be conveyed into live wells with full production pressure. Key e-line workover activities include the setting of downhole tools (e.g., bridge plugs, packers, cement retainers, tubing cutters and punchers), perforating (casing and through tubing), and the use of diagnostic workover tools, such as casing collar/gamma rays (CCL/GRs), multifinger imaging tools (MITs), thermal multigate decay-lithology (TMDL) etc.The natural drive for e-line tools into the wellbore's target depth is gravity. E-line interventions, however, have been traditionally limited by wellbore deviation, and the conveyance of e-line tools through deviated tubing, would at be...

show abstract

Section: Introductionmentioning

confidence: 99%

Wellbore Investigation and Perforation of a Highly Deviated Well Using a Wireline Tractor and Strip Guns Offshore Angola

2014

View full text Add to dashboard Cite

show abstract

“…4 To solve this problem, at present, downhole robots are mainly used to tract the tubing into the horizontal well. [5][6][7] The downhole robot can provide axial traction force to overcome the frictional resistance, fundamentally solving the problem of the coiled tubing buckling and "locking up." 8,9 Among the downhole robots, only telescopic downhole robots can meet the drilling requirements.…”

Section: Introductionmentioning

confidence: 99%

Control algorithm of weight on bit and rate of penetration based on drilling robot

Jian

Liang

Liu

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

At present, the traction force and traction speed of the drilling robot cannot be controlled. However, if the speed of the drilling robot is too high, the bit will be damaged because of the shock load. If the speed of the drilling robot is too low, the drilling efficiency will be very low. The existing control system and control algorithm of the drilling robot cannot meet the requirements of the drilling conditions. A control system of the weight on bit and the rate of penetration of the drilling robot was invented. On the basis, a dual-loop fuzzy proportional integral derivative (PID) control algorithm of the pressure difference and flow rate was proposed to control the weight on bit and rate of penetration. Furthermore, the simulation model of the dual-loop fuzzy PID control algorithm was established. It is found that the proposed dual-loop fuzzy PID control algorithm has the characteristics of small overshoot and good tracking. Furthermore, the correctness of the theory was verified by the experiments. The experiments show that the average amplitude of rate of penetration vibration by using adaptive PID controller is less than 50% of that of PID controller. The maximum weight on bit with the adaptive PID controller is only 45.94% of that of the conventional PID controller. The overshoot of the adaptive PID controller is only 24.07% of that of the conventional PID controller. At the same time, the vibration amplitude of the conventional PID controller is obviously larger than that of the adaptive PID controller. The proposed adaptive PID controller in this paper can effectively reduce the vibration of the bit. By reducing the vibration of the bit, the life of the bit can be extended. Finally, it is of great significance to realize the efficient and intelligent drilling process.

show abstract

“…These operations, known as well interventions, can consist of tractoring, milling, drilling, cutting and cleaning. A preferred way of performing these tasks is to lower robotic tools into the well environment [1], [2]. By attaching these tools to a cable ( Fig.…”

Section: Introductionmentioning

confidence: 99%

A Pragmatic Approach to Dynamic Behavior in Electrical Lines Used for Well Intervention Tools

Duraij

Xiao

Zsurzsan

et al. 2020

2020 IEEE International Conference on Industrial Technology (ICIT)

View full text Add to dashboard Cite

Electrical lines, also known as wirelines, are commonly used for well intervention techniques to increase flow of oil and gas wells that can be executed during a low service time. Previous studies show the importance of this electrical conductor for power delivery as well as communication purposes. Nevertheless, a validated model and its parameters of this channel are still missing. This papers outlines a geometrical approach to estimate the electrical dynamic behavior for wireline types used in the field with results supported by four different types of validation. The proposed method proves to capture the wireline dynamic behavior characteristics and is particular accurate in modeling the capacitive element within 5 %.

show abstract

Wireline Well Tractor: Case Histories

Cited by 10 publications

References 0 publications

Wellbore Investigation and Perforation of a Highly Deviated Well Using a Wireline Tractor and Strip Guns Offshore Angola

Wellbore Investigation and Perforation of a Highly Deviated Well Using a Wireline Tractor and Strip Guns Offshore Angola

Control algorithm of weight on bit and rate of penetration based on drilling robot

A Pragmatic Approach to Dynamic Behavior in Electrical Lines Used for Well Intervention Tools

Contact Info

Product

Resources

About