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Miniaturized constant-flow water distribution structure and detection device with same

A technology for structural detection and water distribution, which is applied in the application of electromagnetic flowmeters to detect fluid flow, fluid pressure measurement using capacitance changes, and production of fluids. Achieve the effect of ensuring the effect of downhole use, alleviating the variation of stratified water volume, and being convenient and reliable for on-site use

Pending Publication Date: 2020-07-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a miniaturized constant-flow water distribution structure and its detection device. The purpose is to solve the above-mentioned problems. The ground test of the constant current mechanism makes its structural optimization and improvement slow, cannot provide guarantee for field tests, and cannot speed up tool development and testing

Method used

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  • Miniaturized constant-flow water distribution structure and detection device with same
  • Miniaturized constant-flow water distribution structure and detection device with same

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Please refer to figure 2 , which shows a schematic diagram of the overall structure of a miniaturized constant-flow water distribution structure of the present invention, which includes:

[0039] a pipe body, the pipe body has an overflow channel;

[0040] The constant current elastic part 21, the constant current elastic part 21 includes;

[0041] a body with a compressible pressure chamber inside;

[0042] elastic part;

[0043] transmission components; and

[0044] The transmission part is located at the opening of the pressure chamber, the elastic part is located in the pressure chamber, one end of the elastic part is connected to the inner wall of the pressure chamber, and the other end is connected to the transmission part, and the transmission part passes through the The elastic part can extend or retract the pressure chamber;

[0045] Valve part 19;

[0046] The inside of the flow channel communicates with the outer surface of the transmission part of the...

Embodiment 2

[0052] Further, please refer to figure 2 , another embodiment of a miniaturized constant-flow water distribution structure of the present invention, the first water inlet and the first water outlet of the flow channel communicate with the outside world, and the valve part 19 is a movable sliding sleeve, and the inside of the movable sliding sleeve There is a second flow passage, the second water inlet 18 and the second water outlet 20 of the second flow passage communicate with the outside world, the movable sliding sleeve is located in the flow passage, the movable sliding sleeve is connected to the The overcurrent channel is slidingly connected, the first water inlet of the overcurrent channel communicates with the first water outlet through the second water inlet 18 and the second water outlet 20, and the transmission direction of the transmission part is in line with the movable sliding sleeve. The sliding direction is the same, and the transmission part is in transmissio...

Embodiment 3

[0058] Further, please refer to figure 2 , another embodiment of a miniaturized constant flow water distribution structure of the present invention, the opening size of the first water inlet is equivalent to the opening size of the second water inlet 18;

[0059] The opening size of the first water outlet is equivalent to the opening size of the second water outlet 20 .

[0060] In the above embodiment,

[0061] The opening size of the first water inlet is equivalent to the opening size of the second water inlet 18, and the opening size of the first water outlet is equivalent to the opening size of the second water outlet 20. Finally, the matching parts of the constant-flow elastic part 21 and the valve part 19 can accurately control the pressure in the flow passage, and make the flow-control effect of the miniaturized constant-flow water distribution structure more accurate.

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Abstract

The invention relates to a miniaturized constant-flow water distribution structure and a detection device with the same, and belongs to the technical field of oilfield fine layered water injection. The miniaturized constant-flow water distribution structure provided by the invention comprises a pipe body, a constant-flow elastic part and a valve part, wherein the pipe body is internally provided with a flow passing channel; the constant-flow elastic part comprises a body, an elastic part, a transmission part and an opening part, wherein the body is internally with a compressible pressure cavity, the opening part and the transmission part are located in the pressure cavity, the elastic part is located in the pressure cavity, one end of the elastic part is connected with the inner wall of the pressure cavity, the other end of the elastic part is connected with the transmission part, and the transmission part can extend out of or retract back to the pressure cavity through the elastic part; and the interior of the flow passing channel communicates with the outer surface of the transmission part of the constant-flow elastic part, and the transmission part is in transmission connectionwith the valve part. The constant-flow water distribution structure is designed in a miniaturized mode, the original structure of a water distributor is kept unchanged, and the miniaturized constant-flow water distribution structure can be matched with other testers in use, and is reliable and convenient to use on site.

Description

technical field [0001] The invention belongs to the technical field of fine layered water injection in oil fields, and in particular relates to a miniaturized constant-flow water distribution structure and a detection device thereof. Background technique [0002] At present, the rapid development of fine water injection technology has greatly improved the effect of water flooding in reservoirs. The conventional separate injection process adopts the mechanical docking adjustment of control instruments. The opening of the mouth is fixed and cannot be adjusted automatically. However, affected by factors such as changes in the water absorption capacity of the formation and pressure fluctuations in the water injection system, the amount of layered water injection is constantly changing, resulting in failure to achieve the standard injection, and the qualified rate of injection drops rapidly. , unable to meet the injection requirements for a long time, unable to meet the geologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20G01L9/12G01F1/58
CPCE21B43/20G01L9/12G01F1/58
Inventor 杨玲智姚斌薛建强姬振宁于九政申晓莉王子建胡改星毕福伟刘延青
Owner PETROCHINA CO LTD
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