In-situ core migration chamber and core migration method

Abstract

The invention discloses an in-situ core migration chamber and a core migration method. The in-situ core migration chamber comprises a core storage chamber; the core storage chamber is a hollow cavity;the left end and the right end of the core storage chamber are connected with a first transfer pipe and a second transfer pipe respectively; the core storage chamber is internally provided with a core room and a support; the core room is a hollow cavity for placing a core; one end of the support is fixedly connected with the outer wall of the core room and the other end is connected with the inner wall of the core storage chamber through a pulley, and thus, the core room can slide in the core storage chamber; the right end of the second transfer pipe is connected with a sealed ball valve through a quick connector; the sealed ball valve rotates under effects of a driving mechanism to realize sealing of the core storage chamber; the right side of the sealed ball valve is connected with an adapter; the first transfer pipe is internally provided with a flap valve and a driving piece thereof, the flap valve is connected with the driving piece, turning of the flap valve is realized throughthe driving piece, and sealing of the core storage chamber is thus realized; and the core storage chamber is also connected with a pressure balance control unit and a temperature balance control unit.The in-situ core migration chamber and the core migration method are suitable for all kinds of pressure holding and coring operations.

Description

technical field [0001] The invention belongs to the research field of in-situ mechanics of rock mass, and relates to an in-situ rock core shifting cabin and a rock core shifting method with the function of maintaining pressure and heat preservation. Background technique [0002] Sustained, safe and green energy supply is the basic guarantee for my country's rapid economic development. With the gradual depletion of shallow resources, resource development continues to go deep into the earth, and the exploitation of deep resources has become a new normal. Therefore, basic theoretical research on improving the ability to obtain deep resources has become an important symbol of the world's mining power. [0003] For the research on the characteristics of deep coal rocks, the current research methods are to use coring technology to carry out deep sampling and carry out laboratory test analysis and research. However, because the sampling needs to go through two main processes of on...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an in-situ core shifting cabin and a core shifting chamber to overcome the problem that the existing core transfer equipment cannot effectively ensure the in-situ performance of the core during the deep drilling and coring process. The method can keep the core in a pressurized state during the transfer process after sampling, and at the same time keep the core warm in real time to ensure the in-situ state of the core to the greatest extent, so that the data measured after the post-processing of the core are the most accurate. close to the original state

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