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Hanger of minor-diameter pipe subsurface agent and gas pouring device

A small-diameter tube and hanger technology, which is used in wellbore/well components, production fluids, earth-moving drilling, etc. Pipe weight and other issues, to achieve the effect of reliable performance, simple and accurate operation

Active Publication Date: 2008-02-27
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current disadvantages are: firstly, it cannot effectively bear the weight of all the small-diameter coiled tubing; secondly, the sealing effect of the small-diameter coiled tubing on the wellhead is not ideal; unobstructed

Method used

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  • Hanger of minor-diameter pipe subsurface agent and gas pouring device
  • Hanger of minor-diameter pipe subsurface agent and gas pouring device

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] As shown in Figure 1, it includes a main body 1, a clamping block 2, a top wire 3, a steel ring 4, a V-shaped sealing ring 5, a seal 6, an upper flange 7, a pressing sleeve 8, a guide 9, and a small diameter pipe 10, The small-diameter tube 10 passes through the upper and lower passages of the main body 1. Two clamping blocks 2 are installed in the center of the main body 1, and are clamped by the top wires 3 on the left and right sides. The upper part of the main body 1 is installed with a guide 9 and a seal 6. The blue plate 7 is connected, the seal 6 is connected with the pressing sleeve 8, and the steel ring 4 is sleeved on the body 1.

[0015] The main body 1 is a five-way, similar to a hollow cuboid, the upper part is a hollow disc shape, and is sealed with a steel ring 4; the lower part is a hollow cylindrical shape with an external thread; there is a symmetrical hollow cylindrical boss on the left and right; The upper part of the upper and lower hollow channels ...

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PUM

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Abstract

The hanging unit for narrow tube well injecting device includes one main body, one clamping block, one sealing member, one upper flange, one pressing sleeve, one guide piece, one narrow tube and other parts. Of the hanging unit, the single ram preventer can seal the well gas pressure, the non-return valve connected to the narrow tube can prevent the reverse flow of the matters inside the well, the clamping block and the terminal screw can suspend the narrow tube in the well head reliably, the sealing member can seal the ring space between the narrow tube and the cavity of the hanging unit, and the guide piece can fix the narrow tube and the auxiliary ground hanging unit to the ground anchor. The present invention has simple and accurate operation, and reliable performance.

Description

technical field [0001] The invention belongs to equipment in a suspension device for downhole injection agent gas injection operation of small-diameter pipe, in particular to a hanger of a small-diameter pipe-hole downhole injection agent gas injection device. Background technique [0002] When the small-diameter pipe downhole injecting agent gas injection operation device lowers the small-diameter pipe into the gas well, the small-diameter pipe suspension device needs to be used for some wells that require a long time for agent injection. The basic operation method is as follows: the hanger hangs the weight of the small-diameter pipe on the wellhead, firmly fixes the small-diameter pipe on the wellhead with a clamp, installs a seal, and then uses the auxiliary suspension and ground anchor to anchor the small-diameter pipe to the ground. Dose can be injected through a small diameter tube at any time as needed. [0003] The hanger is the key equipment of the gas injection su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/16E21B43/24E21B23/01
Inventor 曹和平马卫国陈立华陈新欣伍甫生刘仁敏
Owner BC P INC CHINA NAT PETROLEUM CORP
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