A microscopic visual experiment system for core displacement
An experimental system and displacement technology, applied in the laboratory field of oil field development, can solve the problems of contact between the displaced fluid and the displacement fluid
Active Publication Date: 2019-06-18
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the deficiency that the displaced fluid and the displacing fluid will contact in advance in the high temperature and high pressure microscopic visual experimental device in the prior art
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[0019] The present invention will be further described below in conjunction with accompanying drawing.
[0020] Such as figure 1 As shown, the rock core displacement microscopic visual experiment system 10 of the embodiment of the present invention includes a glass photolithography model box 27, a pressurizing device connected with the glass photolithography model box 27, and a glass photolithography model box 27. The glass lithography model 26 inside, the displaced fluid device directly connected with the glass lithography model 26, the one-way conductor 20 connected with the glass lithography model 26, the displacing fluid connected with the one-way conductor 20 The injection device, the displacement fluid back pressure device connected with the displacement fluid injection device, the back pressure valve 13 connected with the glass photolithography model 26, the equipment main body 18 containing the glass photolithography model box 27, and the equipment main body 18 The co...
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Abstract
The invention discloses a rock core displacement microcosmic visible experiment system which comprises a glass photoetching mold, a displaced fluid injection device, a one-way communicating part and a displacing fluid injection device, wherein the displaced fluid injection device is directly connected with the glass photoetching mold; the one-way communicating part is connected with the glass photoetching mold; the displacing fluid injection device is connected with the one-way communicating part; the one-way communicating part is positioned between the glass photoetching mold and the displacing fluid injection device. As the one-way communicating part is arranged between the displacing fluid injection device and the glass photoetching mold, and the one-way communicating part is capable of preventing displaced fluid from contacting displacing fluid in the displacing fluid injection device in advance as the displaced fluid flows back in the pressure and temperature increase process of the glass photoetching mold, the phenomenon of physical mixing or chemical reaction caused by contact of the displacing fluid and the displaced fluid in advance in the experiment preparation process can be avoided, and the observed displacement process can be relatively approximate to the actual situation of a stratum.
Description
technical field [0001] The invention relates to the technical field of indoor experiments for oilfield development, in particular to a microscopic visual experiment system for rock core displacement. Background technique [0002] The existing high-temperature and high-pressure microscopic visual experiment device simulates the high-temperature and high-pressure conditions of the formation. However, since the design only considers the physical conditions of the pressure and temperature resistance of the glass lithography model, but does not take into account the simulation conditions of the displacement fluid and the formation fluid at high temperature and high pressure, therefore, in the displacement experiments of gas flooding and miscible flooding During the heating and pressurizing stages of the process, the displaced fluid and the displacing fluid will contact in advance, which will distort the observed displacement phenomenon, and the displacement process is not easy to...
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IPC IPC(8): G01N21/84G01N33/24
Inventor 李孟涛张喜顺石在虹史爱萍张祖国李建平柴国兴牛骏
Owner CHINA PETROLEUM & CHEM CORP