Visual nesting device and experimental method for test samples of conductivity

A technology for testing experimentation and conductivity, applied in measurement devices, suspension and porous material analysis, instruments, etc., can solve problems such as rock slab and proppant extraction

Active Publication Date: 2021-04-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] To sum up, although more and more attention has been paid to the observation and evaluation of the fracture wall shape, proppant breakage, proppant embedding, and proppant laying concentration changes after the conductivity test, most of them are indirect methods, and no visual methods have been used. Methods Take out the rock slab and proppant after the experiment to observe its shape change

Method used

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  • Visual nesting device and experimental method for test samples of conductivity
  • Visual nesting device and experimental method for test samples of conductivity
  • Visual nesting device and experimental method for test samples of conductivity

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Embodiment

[0060] Such as Figure 1 to Figure 4 As shown, the embodiment of the present invention provides a visual nesting device and experimental method for the test sample of the conductivity test. After the conductivity test, the experimental rock slab is fastened to the diversion chamber and it is difficult to observe the shape changes of the rock slab and proppant. In this case, a visual nesting device is designed to take out the rock slab and proppant, so as to observe and analyze the experimental results.

[0061] Including the following specific steps:

[0062] Step 1: Treatment of the diversion chamber. After the diversion capacity test experiment is over, remove the diversion pipeline, pressure measurement pipeline, pistons at both ends, rubber gaskets and steel plates on the diversion chamber 9, so that only the upper experimental rock plate 13 and proppant are in the diversion chamber 9. 14 and the lower experimental rock slab 15, the rock slab and proppant 14 in the diver...

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Abstract

The invention provides a visual nesting device and an experimental method for testing experimental samples of diversion capacity, comprising: a main body frame with a through groove in the middle having the same shape as the diversion groove; A slot; a transparent plate, fixedly installed on both ends of the main frame, the transparent plate is internally provided with an arc-shaped structure consistent with the shape of the diversion slot, and overlaps with the through slot of the main frame to form an accommodation slot; The lower part of the transparent plate is provided with a groove structure with a raised surrounding edge and an inner concave groove, which coincides with the groove plane of the main frame to form a positioning groove. Through the visual nesting device of the experimental samples for the conductivity test, the experimental slate and proppant that are fastened to the diversion chamber after the experiment can be completely taken out, realizing a complete and clear observation of the slate and support. The change form of the agent can effectively evaluate the fracturing effect, and conduct the fracturing design and construction in a targeted manner.

Description

technical field [0001] The invention belongs to the field of oil and gas field development, and in particular relates to the state observation of a slab and a supporting agent after an experimental test of the conductivity of a fracturing fracture. Background technique [0002] The conductivity of fracturing fractures is a key index for evaluating the effect of hydraulic fracturing fractures. The experimental technology of proppant conductivity test is the key technique for simulating and evaluating the effect of proppant filling fractures. After the experiment, the analysis of the morphological changes of the experimental slab wall and proppant can provide intuitive data for the interpretation of the fracture conductivity and the evaluation of the fracturing effect. Therefore, more and more attention has been paid to the observation and evaluation of fracture wall morphology, proppant breakage, proppant embedding, and proppant laying concentration changes after the conduct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/082
Inventor 贺甲元李凤霞刘长印黄志文
Owner CHINA PETROLEUM & CHEM CORP
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