A gas well scale collection device, scale collection method and installation method thereof

Abstract

The invention discloses a gas well scale collection device, a scale collection method and an installation method thereof. The gas well scale collection device includes a pump rod body, and also includes a device for collecting rust off the pump rod body. The pipe body, the locker for fixing the pipe body and the liquid outlet plate for liquid discharge, the pipe body is a screen tube with a liquid-passing function, and an accommodation space is formed between the screen tube and the pump rod body. The beneficial effect of the invention is that the structure is simple, the installation is convenient, and the rust off the inner wall of the oil pipe and the sucker rod can be collected into the device effectively when the pump is stopped, so as to prevent the pump port from being buried and blocked by the rust falling off and causing the pump to be stuck. , and when the pump is working, the liquid / gas, various minerals and rust impurities in the well can be lifted to the ground through the liquid outlet plate, which can be used continuously, with low production costs and high economic benefits.

Description

technical field [0001] The invention relates to the technical field of coal bed gas, in particular to a coal gas well scale collection device and a scale collection method using the device. Background technique [0002] In the prior art, during the development of coalbed methane wells, the downhole medium will transfer with the minerals, thereby forming rust, which adheres to the sucker rod and the inner wall of the tubing. The specific gravity is large, the hydraulic pressure in the well is insufficient, and the lifting force of the pump cannot effectively carry the rust to the ground. Once the collection equipment stops, the rust will fall back, bury the pump port, cause the pump to get stuck, and cause large economic losses. [0003] The Chinese invention patent with the application number: 200920109356.3 discloses a tubular pump descaling device, which is applied to the anti-scaling of oil production tubular pumps in oil fields. It consists of the upper part of the pump ...

AI Technical Summary

Problems solved by technology

However, this type of tube pump descaling device has a relatively complicated structure and cumbersome installation process. It can only store the rust in the device, and cannot take the rust out of the well. It cannot be used continuously, and the economic benefit is low.

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