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Oil field downhole junk salvage device

A salvage device and technology for oilfield wells, which are applied in wellbore/well components, earthwork drilling, etc., can solve the problems of increasing maintenance costs, increasing the difficulty of workover operations, etc., achieving a high operation success rate, and increasing salvage time and operation. Simple and easy effects

Inactive Publication Date: 2019-01-01
西安瑞杰实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the salvage process, the fallen objects cannot be salvaged and cannot be withdrawn, which increases the difficulty of workover operations and increases maintenance costs

Method used

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  • Oil field downhole junk salvage device

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] Such as figure 1 As shown, the oil field downhole fishing device provided by the present invention includes a joint 1, a lance 2, a spring 3, a round slip 4, a lock block 5, a screw 6, and a guide shoe 7. The lance 2 is fixed on the joint 1, The round slip 4 is fixed on the lance 2 through the lock block 5, the lock block 5 can adjust the floating of the round slip 4, the lock block 5 is fixed by the screw 6, and the end of the lance 2 Connect the guide shoe 7, a spring 3 is arranged between the lance 2 and the round slip, and the middle part of the lance 2 is a retractable structure. We can use spring 3 according to the inner diameter of the falling object, so that even if the spring falls off, it is not easy to fall into the well due to the limitation of size. When fishing heavy objects, the force of the spring shares the force of the lock block, thereby p...

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Abstract

The invention discloses an oil field downhole junk salvage device which comprises a joint, a spear rod, a spring, a round slip, a locking block, a screw and a guiding shoe. The spear rod is fixed to the joint; the round slip is fixed to the spear rod through the locking block; the locking block can adjust floating of the round slip and is fixed through the screw; the tail end of the spear rod is connected with the guiding shoe; the spring is arranged between the spear rod and the round slip; and the middle of the spear rod is of a retractable structure. The oil field downhole junk salvage device is simple in structure, flexible and reliable in action, convenient and easy to operate, high in working success rate, not prone to damaging the fish roof, large in contact area with fishes, thus high in tensile load, large in impact-resisting load, and capable of being recycled.

Description

technical field [0001] The invention relates to oil well fishing equipment, in particular to a novel oil field well falling object fishing device. Background technique [0002] Currently commonly used salvage equipment can be roughly divided into four catchers for salvaging deep well sucker rods, mechanical oscillators for salvaging deep well drill pipes, new cutters for cutting tubular fish, and devices that can collect large pieces of rock debris and metals. Flow-through overshot. During the salvage process, the falling objects cannot be salvaged and cannot be withdrawn, which increases the difficulty of workover operations and increases maintenance costs. Contents of the invention [0003] In view of the above defects or deficiencies, the object of the present invention is to provide an oil field well fall fishing device. [0004] Technical scheme of the present invention is: [0005] It includes joints, spears, springs, round slips, lock blocks, screws, and guide sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B31/20
CPCE21B31/20
Inventor 曹雅丽
Owner 西安瑞杰实业股份有限公司
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