... a service can be executed. The challenge is more acute when deploying electric line tools in highly deviated or horizontal wellbores, where a tractor is required as part of the toolstring configuration for conveyance purposes. Recent developments in electric line deployed tractor and powered mechanical...

... Abstract A semi-autonomous wireline tractor solution for casedhole applications enabling navigation through complex restrictions with minimal operator interaction in absence of digital telemetry is presented. The robotic conveyance technology provides a foundation for applications where...

... into such a well in combination with a high-performance tractor, and to document a case study where a total depth of 40,600 feet (ft) was achieved against a production flow of 6,500 barrels of oil per day (BOPD). Extending the distance that a toolstring may be conveyed into a horizontal well by means...

... injection. A separately designed wellbore tractor specific for both fluid detection and valve manipulation is then deployed to detect and control the injection entry points to create an effective EGS through paired horizontal injectors and open hole producers. The wells will be connected through multiple...

... All tractor motors are controlled using one standard power reference, generated based on the user's desired speed command. Running the drive motors with one common power reference, rather than torque or speed, has the advantage of natural torque adjustment when friction between various wheels...

..., this eventually leads to helical buckling of the tubing and early lockup where no further progress is made. Advances have been made over the last decade with the development of high-tech downhole CT tractors that deliver a strong pulling force to overcome these frictional forces. Restrictions in the well...

... identified in a robotic e-line (tractor) intervention technique. METHODS, PROCEDURES, PROCESSES The problem can be addressed in several ways: – Revise the well trajectory plan to have the ESP tangent section with a lower deviation close to the reservoir so it can be accessed by standard intervention...

...) and conventional Tractor conveyance. The current study focusses on using new Slim-hole Tractor, run first time worldwide in CO2 injector wells to convey the logging tools across these long open-hole horizontal wells for rig-less reservoir monitoring and injection optimization. The advanced design Slim Tractor...

... 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...

..., 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...

... acid job. CT simulation results for these wells showed coil can reach only 60-70% of open hole interval. Calibrated friction coefficients were used in CT simulation based on the data base developed from other wells in the same area. Only CT-Tractor simulation showed 100% reach with maximum tractor over...

... 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...

... submersible pump (ESP). The ESP completion with minimum restriction of 2.44-in. limits the coil tubing (CT) and downhole tools size. Hydraulically powered CT tractors are an ideal solution to pull the CT to TD ( Saiood et al. 2018 ). The completion minimum restriction only allows for 2-in. CT with 2-1/8...

... 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...

... 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...

... Various options were explored to access and stimulate the main bore of the wells in this field. Slim hydraulic tractors were decided upon, as the extended reach tool for Coiled Tubing. Pre-Job Tubing Force Analyses (TFA) were performed for multiple candidate wells to evaluate the predicted reach...

... 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...

... 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 an initial shut-in period, followed by a ramp up to a maximum test rate, and a final shut-in period. Data from the full...

... to repeat logging in zones of interest or missing data, the camera provider recommended the logging be performed in "real time" on an electric-line (e-line) tractor. A shop systems integration test of the combined tractor, caliper and camera was performed prior to running in the well. Clear fluid (fresh...