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A coiled tubing turbocharged torque increasing tool

A technology of turbo pressurization and turbo drilling tools, which is applied in wellbore/well components, earthwork drilling, construction, etc. It can solve the problems of low torque drilling pressure, poor adaptability to well meridian changes, and discontinuous work of crawlers, etc., to achieve adaptability strong effect

Inactive Publication Date: 2018-02-27
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the present invention: In order to overcome the disadvantages of discontinuous work of existing crawlers and poor adaptability to well changes, and at the same time solve the problem of low pressure-on-bit in coiled tubing drilling and grinding operations, a coiled tubing turbocharged torque-increasing tool is specially provided

Method used

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  • A coiled tubing turbocharged torque increasing tool
  • A coiled tubing turbocharged torque increasing tool
  • A coiled tubing turbocharged torque increasing tool

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Embodiment Construction

[0025] The present invention is not limited by the following implementation examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention. Combine below figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 The present invention will be described below. The positional relationship of up, down, left and right is based on the instructions attached figure 1 The layout direction is determined.

[0026] The cone buckle at the upper end of the central cylinder 24 is connected to the transfer case, the cone buckle at the upper end of the transfer case is connected to the casing 1 of the turbodrill, the cone buckle at the upper end of the turbodrill is connected to the rotary joint, and the cone buckle at the lower end of the central shaft is connected to the lower drilling tool 28.

[0027] The rotary joint includes a fixed seat 29, a rotary head 30, and an end gland 31. The fixed seat...

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Abstract

The invention relates to a turbine pressurizing and torque-increasing tool for continuous oil pipes. The tool can convert torque of a turbine drill into drilling pressure and torque of a front-end tool. The technical scheme includes that a rotary drum is arranged in a central sleeve and is driven to rotate by the turbine drill. The rotary drum is externally provided with spiral grooves and drives a slide sleeve to axially move, and the slide sleeve stretches axles through support arms, so that wheels are pressed on the well wall or the bushing. The turbine drill drives the three wheels to rotate through a transfer case. An input shaft of the transfer case drives the rotary drum to rotate through a friction ring. The opening angle of the axles of the wheels can be automatically and steplessly adjusted so as to adapt to changes of the hole diameter. The torque of the turbine drill can be increased through the transfer case, so that better conditions can be provided for the front-end drilling tool.

Description

Technical field [0001] The invention relates to a coiled tubing turbo-pressurized and torque-increasing tool, which is specifically applied to coiled tubing operations in oil and gas wells, especially coiled tubing drilling, grinding, well washing and other operations. Background technique [0002] Coiled tubing is a complete slender tube with a length of thousands of meters, which is wound on the tubing reel on land, and can be sent into the hole as a whole string; it is widely used in well workover, drilling bridge plugs after fracturing, and falling Fishing, logging, and drilling operations. Due to its continuous structure, coiled tubing has a short trip time, and its work efficiency is 3 to 5 times that of ordinary drill pipe, tubing, and casing operations. [0003] Coiled tubing has too much deflection and can only withstand axial tension, and can hardly withstand torque and axial pressure. Therefore, the operation of coiled tubing in inclined wells and horizontal wells requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B23/00E21B23/08
CPCE21B23/00E21B23/001E21B23/08
Inventor 张梁邓严刘稳邓兰何虹钢
Owner SOUTHWEST PETROLEUM UNIV
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