Oil-well pump bridging pressure-applying setting device and application method for packer

Abstract

The invention relates to an oil-well pump bridging pressure-applying setting device and application method for a packer. The device is characterized in that a process tail pipe is mounted at the lowerpart of the packer, a process oil pipe, an oil-well pump bridging pressure-applying setting device, an improved oil-well pump fixing valve and an oil-well pump are sequentially mounted on the upper part of the packer. After the workover treatment completes the pipe string descending well treatment, an valve ball of the improved fixing valve is in an open state under the support of the oil-well pump bridging pressure-applying setting device at the moment, and a well killing liquid required by packer setting is transmitted to the packer through the oil-well pump bridging pressure-applying setting device, and at the moment, a ground pumper pressurizes to complete packer setting; and the process of oil-well pump plunger and rod column descending is the same as an existing process, an oil-wellpump plunger is descended to a predetermined depth to pump touching, the plunger is pressed down to push a ball valve upper pressing rod to push the valve ball, an ejector rod and a plug body to movedownwards so as to shear a process positioning jackscrew, at the moment, a push spring is extended to enable the ejector rod to be far away from a valve seat, the valve ball is free to set, then theanti-stroke distance of the plunger is adjusted, the oil-well pump is normally operated, and therefore, the process purpose of completing oil-well pump descending and packer setting one-trip pipe column is achieved.

Description

technical field [0001] The invention belongs to the technical field of construction by operation, and in particular relates to a pressure-setting packer device and an application method for an oil well pump crossing a bridge. Background technique [0002] In the process of oil and gas exploration and development, various packers are widely used and play a vital role in oil exploration, development and production. At present, some domestic oil fields have entered the stage of secondary development and recovery, and some oil fields have entered the stage of tertiary development and recovery, and the water content of crude oil is extremely high. For this reason, technicians use packers to implement water blocking and water blocking processes in non-oil-producing layers to reduce the water content of the produced crude oil; The technical method of one trip of the pipe string cannot be implemented with the lower oil well pump, so that the workover operation period cannot be shor...

AI Technical Summary

Problems solved by technology

For this reason, technicians use packers to implement water blocking and water blocking processes in non-oil-producing layers to reduce the water content of the produced crude oil; The technical method of one trip of the pipe string cannot be implemented with the down well pump, so that the workover operation period cannot be shortened, the cost cannot be effectively reduced, and the requirements for refined management of workover operations cannot be met

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