Testing, adjusting and sealing examining integrated device for separate injection well

A separate injection well, measurement and adjustment technology, applied in the direction of measurement, fluid production, sealing/isolation, etc., can solve the problems that the packer does not have the function of seal inspection and pressure measurement, etc., to achieve high isolation sealing pressure and high operating efficiency , reliable effect
CN113137213AInactive Publication Date: 2021-07-20DONGYING XINJI PETROLEUM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGYING XINJI PETROLEUM TECH
Publication Date
2021-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a testing, adjusting and sealing examining integrated device for a separate injection well. The testing, adjusting and sealing examining integrated device is applied to underground separate layer water injection of an oil field and comprises an underground separate injection tubular column and a testing, adjusting and sealing examining system. The testing, adjusting and sealing examining system comprises an integrated testing, adjusting and sealing examining instrument, and the integrated testing, adjusting and sealing examining instrument comprises a control unit, a flow sensor, an internal pressure sensor, an upper motor, a lead screw, an axial positioning unit, an upper and lower packing unit, an external pressure sensor, a circumferential positioning unit and a rotating unit. The axial positioning unit comprises a positioning block provided with an axial anti-clamping sliding groove, and the lead screw is provided with an upper setting thread and a lower setting thread which are opposite in rotating direction. The flow sensor is an electromagnetic flow sensor. A packing piece is a compression type rubber sleeve or a packing cup. The upper setting thread and the lower setting thread are trapezoidal threads. The two-stage packing element and the setting mechanism of the two-stage packing element are arranged on the integrated testing, adjusting and sealing examining instrument and matched with an efficient water distributor, testing, adjusting, pressure measuring and sealing examining operation can be completed at a time.
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Description

technical field

[0001] The invention relates to the technical field of layered water injection for oil field development in the petroleum industry, in particular to an integrated device for testing, testing, sealing of separate injection wells. Background technique

[0002] In the process of oilfield development, layered water injection is one of the most important technologies to enhance oil recovery. After years of research and promotion, the current measurement and adjustment integrated layered water injection technology has been widely used in domestic oilfields. The technology is divided into two parts: the downhole separate injection string and the measurement and adjustment system. The downhole injection string includes a layered packer and an adjustable water distributor. The measuring and adjusting system includes ground controller, cable and downhole measuring and adjusting instrument. This technology uses the downhole measuring and adjusting instrument to adjus...

Claims

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