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A reamer type sand washing pen tip

A pen tip and sand flushing technology, which is applied in the field of reamer-type sand flushing pen tip, can solve the problem of unsatisfactory sand flushing effect of the pen tip, and achieve the effect of overcoming the unreliability of the pen tip

Active Publication Date: 2022-06-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sanding effect of the turning or impact nib is not ideal

Method used

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  • A reamer type sand washing pen tip
  • A reamer type sand washing pen tip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In this embodiment, the inner cylinder 2 is in an upright state, and the upper end of the inner cylinder 2 is connected with a coupling 1. The axis of the coupling 1,

[0024] In this embodiment, the outer pen tip barrel 6 contains a large-diameter section, a transition section and a small-diameter section sequentially connected from top to bottom. Should

[0030] The working process of the reamer-type sand flushing pen tip is introduced below.

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PUM

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Abstract

The invention discloses a reamer-type sand-washing nib, which comprises an inner barrel (2) and an outer nib barrel (6) arranged inside and outside. The outer surface of the inner barrel (2) is provided with a spiral track (3). A track pin (4) is arranged between the cylinder body (2) and the outer nib barrel (6), one end of the track pin (4) is connected and fixed with the outer nib barrel (6), and the other end of the track pin (4) is located on the spiral track (3) When the inner cylinder (2) moves axially relative to the outer nib cylinder (6), the inner cylinder (2) can drive the outer nib cylinder (6) to rotate. The reamer-type sand washing pen tip combines mechanical crushing and hydraulic impact, which improves the working efficiency and makes the sand particles finer, so as to facilitate the sand washing liquid to carry the sand back up.

Description

A reamer-type sand flushing pen tip technical field The present invention relates to the technical field of oil field workover, specifically a kind of reamer type sand flushing pen tip. Background technique In current oil field sand flushing operation, adopt hydraulic sand flushing or adopt fluid to be the rotary sand flushing pen tip of power and The hydraulic impact type sandblasting nib has achieved certain results in field applications. But the sandblasting of the turning or impact nib The effect is not ideal. SUMMARY OF THE INVENTION In order to improve sand flushing effect, the invention provides a kind of reamer type sand flushing pen tip, this reamer type sand flushing pen tip will machine The combination of mechanical crushing and hydraulic impact improves the operation efficiency and makes the sand body particles finer, so that the sand washing liquid can carry the sand back up. The technical scheme adopted by the present invention to solve its technic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/00
CPCE21B21/00
Inventor 管九洲王书慧海青华吴骏贾楠刘强刘鹏费丹杨鹏孙丽丽
Owner PETROCHINA CO LTD