Pump cylinder honing tool

Abstract

The invention provides a pump cylinder honing tool which comprises a mandrel part with an ejector rod and an expansion core, a universal coupling part with a first universal joint and a second universal joint which are connected with each other, and a honing part with a tubular body on which a plurality of honing heads are formed, an included angle can be formed between the axis of the first universal joint and the axis of the second universal joint, and a plurality of honing strips are arranged on each honing head. The ejector rod penetrates through the first universal joint and extends into the second universal joint, the body is connected with the second universal joint, the expansion core is arranged in the body, and the ejector rod abuts against the expansion core. The ejector rod pushes the expansion core to slide, and the expansion core drives the honing strips to move in the direction protruding out of the peripheral faces of the honing heads. According to the pump cylinder honing tool, the universal coupling part is arranged, so that the pump cylinder honing tool can generate a certain included angle, the automatic guiding effect is achieved in the process that the tool enters a pump cylinder, meanwhile, the honing part can be further guided by arranging the at least two honing heads, the honing part can evenly hone the inner wall of the pump cylinder, and the process requirement for honing large-diameter and long pump cylinders is effectively met.

Description

technical field [0001] The invention relates to the technical field of oil production engineering, in particular to a pump barrel honing tool. Background technique [0002] With the rapid development of technologies such as SAGD, horizontal wells, and steam flooding in Liaohe Oilfield, high-temperature and high-yield oil wells in Liaohe Oilfield have shown a trend of increasing rapidly, and high-temperature and large-displacement lifting technology has emerged in response to the trend. Taking SAGD technology as an example, large-displacement oil well pumps with pump diameters of Φ120mm, Φ140mm, and Φ160mm have been developed successively to meet the needs of on-site lifting. [0003] At present, in the processing of oil well pumps, in order to ensure the technical requirements of straightness and roughness, the pump barrel is processed by honing technology. The existing honing tools include a single honing head and 6 honing bars. However, in large When honing diameter pump ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the processing of oil well pumps, in order to ensure the technical requirements of straightness and roughness, the pump barrel is processed by honing technology. The existing honing tools include a single honing head and 6 honing bars. However, in large When honing diameter pump barrels, due to the characteristics of large pump diameter and long pump barrels, current honing tools cannot accurately guarantee the straightness and forming speed of pump barrels. Process requirements

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