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Liquid drive dual-control thermal recovery huff and puff anti-blowout and anti-overflow device

An anti-overflow, liquid flooding technology, applied in earth-moving drilling, wellbore/well components, sealing/packing, etc., can solve problems such as uncontrollable, no control tools, etc.

Active Publication Date: 2021-05-14
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of hanging and pumping the integrated injection-production pump, lifting and lowering the sucker rod and grabbing the piston, the whole process is in an uncontrollable state due to the lack of effective control tools. Once wellhead overflow or well kick occurs, it will be uncontrollable

Method used

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  • Liquid drive dual-control thermal recovery huff and puff anti-blowout and anti-overflow device
  • Liquid drive dual-control thermal recovery huff and puff anti-blowout and anti-overflow device
  • Liquid drive dual-control thermal recovery huff and puff anti-blowout and anti-overflow device

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Embodiment Construction

[0041]infigure 1 In the middle, the liquid drive dual-controlled thermal mining throughput anti-spray anti-overflow device is composed of a dual-control body 1, the upper controller 2, the liquid driven body 4, the liquid drive piston body 5, and the lower control gate 6, the anti-spray defense The overflow device adopts the rod sealing core of the upper control gate 2 and the lower control gate 6, and the octagonal seal ring and ○ sealing ring of the liquid driven body 4, which are non-metallic seals. Hard Drive Overlars and Liquid Drugs, which are composed of gate 2, liquid driveforce, and lower control, effectively solve overflow control and wellhead loss of control during hemodynamic surgery.

[0042]infigure 1 In the middle, the liquid-driven drive double-controlled heat mining throughout anti-spray anti-overflow device is integrated with the disk box and the wellhead of the wellhead bar 3 through the dual control body 1, and the liquid driven body 4 and the liquid drive The pisto...

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Abstract

The invention provides a liquid drive dual-control thermal recovery huff and puff anti-blowout and anti-overflow device, which is applied to the blowout and anti-overflow prevention of heavy oil thermal recovery huff and puff wellheads. The liquid drive cylinder body and the liquid drive piston body of the anti-blowout and overflow prevention device cooperate to form a hydraulic drive force device, and one set of upper control gate body and two sets of liquid drive force devices are combined to form a liquid drive upper control device to control the movement of the polished rod at the wellhead. Blowout and overflow operations, and a set of lower control sluice body and two sets of hydraulic driving force devices are combined into a liquid drive lower controller to control the blowout and overflow operations of the sucker rod string, and the liquid drive upper controller and liquid drive lower control The device is arranged from top to bottom along the shaft of the polished rod at the wellhead and cooperates with the double control body at the same time; the upper control gate body and the lower control gate body realize the seal between the gate block body and the double control body according to the shell sealing rubber core, and seal through the rod The rubber core respectively realizes the seal between the gate block body and the wellhead polished rod, and the gate block body and the sucker rod string. The liquid drive cylinder provides the reciprocating propulsion power for the liquid drive piston body, and the liquid drive rod body directly pushes the gate block body to reciprocate. Radial precision sliding.

Description

Technical field[0001]The present invention relates to a spray anti-overflow apparatus for thermal well-known wells in the field of petroleum engineering, in particular to a liquid-driven dual-control anti-spray anti-overflow apparatus for heavy oil-heat-adult shaft wells.Background technique[0002]Heavy oil heat harvesting well, integrated technology and supporting process can achieve a tube column injection-oil-infusion-based cycle production, currently using the intra-oil-proof thermal adherent well in the integrated integrated After the release of the spray, it is placed onto the oil cassette pressure to fall zero or low pressure without oil, and the underwater shaft is used in the operation, and the operation is unloaded. The above devices, and then fuel-camped-oil-oil-oil-oil-oil-oil-oil-oil-proof-free stamps that follow the pumping rod in the tube column and complete the integrated pump.[0003]According to the relevant statistics of the Sinopec Victory Oilfield, in the case of i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/06
Inventor 刘新福郝爱刚周超高鹏秦蕊何鸿铭
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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