Mechanical tubing anchor for stabilizing tubing
A mechanical and tubing anchor technology, which is applied in wellbore/well components, earthwork drilling, sealing/isolation, etc., to achieve the effects of saving resources, improving stability, and facilitating recovery
Inactive Publication Date: 2021-06-25
张军
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Problems solved by technology
[0004] Aiming at the shortcomings of the existing mechanical oil pipe anchor for oil pipe stabilization, the present invention provides a mechanical oil pipe anchor for oil pipe stabilization, which has the advantages of preventing the rotation of the anchor and improving the reliability of the anchor, and solves the problems in the above-mentioned background technology. proposed question
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] see Figure 1-5 , a mechanical oil pipe anchor for oil pipe stability, comprising a central pipe 1, an upper joint 2 is movably connected to the outer ring at the top of the central pipe 1, the outer ring at the bottom of the upper joint 2 is provided with external threads, and the outer ring at the bottom of the upper joint 2 is threaded Connected with a movable clip 16, through the setting of the movable clip 16 and the upper joint 2, the rotation of ...
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The invention relates to the technical field of tubing fixing, and discloses a mechanical tubing anchor for stabilizing a tubing. The mechanical tubing anchor comprises a central pipe, the outer ring of the top end of the central pipe is movably connected with an upper joint, the outer ring of the bottom end of the upper joint is provided with an external thread, the outer ring of the bottom end of the upper joint is in threaded connection with a movable clamping cone, a fixing ring is fixedly connected to the outer circle of the middle of the center pipe, slips are evenly and movably connected to the top of the fixing ring, connecting blocks are evenly and fixedly connected to the middle of an inner cavity of the center pipe, a sealing piece is movably connected to the other end of each connecting block, and the top of the other end of each sealing piece is fixedly connected with one end of a pull rope. According to the mechanical tubing anchor for stabilizing the tubing, through the arrangement of a telescopic rod, the rigidity of a spring can be improved through the telescopic rod, the spring can only move in the telescopic direction and cannot move in other directions, the telescopic rod and the movable clamping cone can limit each other, the center pipe cannot move transversely, and the stability of the tubing anchor is improved.
Description
technical field [0001] The invention relates to the technical field of oil pipe fixing, in particular to a mechanical oil pipe anchor for oil pipe stabilization. Background technique [0002] In the process of downhole measure operations and rod pumping production, due to the influence of some factors (continuous drop of dynamic liquid level, deeper and deeper pump hanging, hot washing measures, etc.), the production or measure string will inevitably face Some problems such as pipe string stretching and stress state deterioration, etc. At present, the downhole tubing anchor (hereinafter referred to as tubing anchor) is mainly used to solve the above problems on site. , can improve the stress state of the pipe string, reduce the fatigue damage of the pipe string, control the expansion and contraction of the pipe string, reduce leakage, prolong the service life of the pipe string, and fix the pipe string during the pumping production process of the rod pump, which can reduce t...
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Login to View More IPC IPC(8): E21B23/01E21B33/12
CPCE21B23/01E21B33/12
Inventor 张军
Owner 张军