Multifunctional electric control throwing and fishing device

Abstract

The invention belongs to the technical field of oil field testing, and relates to a multifunctional electric control throwing and dragging device for oil field water injection well testing. The problem that an existing throwing and dragging tool cannot meet the requirement for small chuck distance and cannot achieve throwing and dragging at a time by descending the well is solved. A cable head 1 is in threaded connection with a throwing and dragging arm motor protective sleeve 9. A cable 38 passes in a cable fixer 3. A centering device 2 is clamped in a clamping groove outside the cable head 1. A guide arm 33 and a supporting arm shaft protective sleeve 28 are connected through a guide arm shaft 30. The guide arm 33 and a guide arm spring 32 are connected through a guide arm spring shaft 31. The supporting arm shaft protective sleeve 28 is in threaded connection with a lower connector 37. The multifunctional electric control throwing and dragging device has the advantages of meeting the requirement for the small chuck distance, achieving throwing and dragging at a time by descending the well, being capable of achieving intelligent positioning, accurate throwing and dragging and automatic disengagement, and the like.

Description

technical field [0001] The invention relates to the technical field of oil field testing, and belongs to a multifunctional electronically controlled throwing and fishing device for oil field water injection well testing. Background technique [0002] The development of Daqing Oilfield is mainly based on water injection development. To ensure the effect of water injection development, it is necessary to ensure the qualified rate of water injection wells. Stratified flow allocation requires the replacement of the downhole water distribution plug. The conventional replacement of the plug is carried out by a steel wire to carry the fishing device for fishing and delivery. Two operations, the efficiency is very low. During the fishing process, it mainly depends on the experience of the workers to judge whether the fishing is successful. , which affects the success rate of fishing. Now the oil field has entered the subdivision water injection period of water injection wells, and t...

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Problems solved by technology

[0002] The development of Daqing Oilfield is mainly based on water injection development. To ensure the effect of water injection development, it is necessary to ensure the qualified rate of water injection wells. Stratified flow allocation requires the replacement of the downhole water distribution plug. The conventional replacement of the plug is carried out by a steel wire to carry the fishing device for fishing and delivery. Two operations, the efficiency is very low. During the fishing process, it mainly depends on the experience of the workers to judge whether the fishing is successful. , which affects the success rate of fishing. Now the oil field has entered the subdivision water injection period of water injection wells, and the minimum distance between water distributors is 1m. The amount will increase, so a multi-functional electric control throwing and fishing device has been developed

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