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Sand control screen sand-blocking precision detecting device and detecting method

A sand control screen and accuracy detection technology, which is applied in the direction of measuring devices, mechanical parts testing, machine/structural parts testing, etc., can solve the problems of sand control screen sample test result errors, etc., to avoid errors and instability, The effect of reducing detection cost and improving stability and repeatability

Active Publication Date: 2013-04-24
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3) Due to the different filling and compaction degree of the formation sand filled into the autoclave body in each test, a large error is caused to the test results of the sand control screen tube samples

Method used

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  • Sand control screen sand-blocking precision detecting device and detecting method
  • Sand control screen sand-blocking precision detecting device and detecting method
  • Sand control screen sand-blocking precision detecting device and detecting method

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Experimental program
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Embodiment approach 1

[0045] Such as figure 1As shown, the present invention provides a sand-retaining accuracy detection device of a sand control screen, which includes an autoclave body 1 , a distribution network pipe 2 and a stirring assembly 3 . Wherein: the upper end of the autoclave body 1 is provided with a sand filling port 11, and its lower end is provided with a liquid outlet 12, and a plurality of liquid inlet holes 13 are provided on the side wall of the autoclave body 1, and the contents of the autoclave body 1 A sand control screen sample 4 is placed, and the sand control screen sample 4 has a liquid outlet channel, and the liquid outlet channel is opposite to the liquid outlet 12; the shunt network pipe 2 is located in the autoclave body 1 and is sleeved on Outside the sand control screen sample 4, an annular space 21 is formed between the diversion network pipe 2 and the sand control screen sample 4, and the annular space 21 is filled with sand particles; the stirring assembly 3 is ...

Embodiment approach 2

[0061] see Figure 1-4 As shown, the present invention also provides a method for detecting sand-retaining accuracy of sand-control screens using the above-mentioned sand-retaining accuracy detection device for sand-control screens to detect sand-retaining accuracy of sand control screens. The method for detecting sand-retaining accuracy of sand control screens includes the following steps:

[0062] a) Cut a section of sand control screen sample 4 from the sand control screen to be tested, and put the sand control screen sample 4 into the autoclave body 1 of the sand control screen sand retaining accuracy detection device;

[0063] b) Selecting sand grains, the grain size of the sand grains ranges from 0.02 mm to 1.6 mm;

[0064] c) After mixing the selected sand particles with different particle sizes, put the sand control screen sample 4 and the shunt network pipe 2 in the autoclave body 1 from the sand filling port 11 of the autoclave body 1 In the annular space 21 between...

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Abstract

The invention discloses a sand control screen sand-blocking precision detecting device and a detecting method. The sand control screen sand-blocking precision detecting device comprises an autoclave body, a distribution net pipe, and a stirring assembly, wherein a sand adding port is formed in the upper end of the autoclave body, a liquid outlet is formed in the lower end of the autoclave body, a plurality of liquid inlet holes are formed in the side wall of the autoclave body, a sand control screen sample is contained in the autoclave body, the sand control screen sample is provided with a liquid outlet channel, and the liquid outlet channel is opposite to the liquid outlet; the distribution net pipe is located in the autoclave body and sleeved outside the sand control screen sample, an annular space is formed between the distribution net pipe and the sand control screen sample, and sand grains are poured into the annular space; and the stirring assembly is located in the autoclave body and comprises a plurality of stirring paddles, the plurality of stirring paddles are located in the annular space and rotate around the peripheral circumferential direction of the sand control screen pipe. The sand control screen sand-blocking precision detecting device and the detecting method can truly and reliably detect the sand-blocking precision of a sand control screen, and are good in repeatability.

Description

technical field [0001] The invention relates to a filter detection device and a detection method, in particular to a detection device and a detection method for the sand-retaining precision of an oil well sand control screen. Background technique [0002] Sand production is common in unconsolidated sandstone reservoirs. Sand production in oil wells shortens the production cycle of oil wells, greatly reduces oil well production, and even causes oil wells to be shut down or scrapped, which seriously restricts the full potential of oil wells and causes serious damage to production equipment and surface processes. , therefore, for sand producing reservoirs, sand control is an indispensable part of oil and gas reservoir exploitation, and sand control screen is one of the important tools in sand control technology of oil and gas wells. The sand-retaining precision of the sand-control screen refers to the maximum particle size value passing through the sand-control screen, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 匡韶华王宝权张建军石磊于丽宏佟姗姗陈磊陈楠柳燕丽
Owner PETROCHINA CO LTD
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