Experimental device for simulating oil extraction seepage and well drilling leaking stoppage and preventing dry burning

Abstract

The invention discloses an experimental device for simulating oil extraction seepage and well drilling leaking stoppage and preventing dry burning, and relates to the field of oil and gas development experimental simulation. The experimental device for simulating oil extraction seepage and well drilling leaking stoppage and preventing dry burning comprises a pipe body extending in the axis direction, the pipe body is provided with an inner cavity used for containing a rock core, the pipe body is provided with a first end and a second end which are opposite to each other, an annular groove is formed in the side wall of the second end of the pipe body, a first through hole communicated with the annular groove is formed in the lower end of the inner side wall of the annular groove, a discharge port communicated with the annular groove is formed in the lower end of the outer side wall of the annular groove, and a separator is arranged in the annular groove and enables liquid flowing out of the first through hole not to directly flow downwards to the discharge port; a first cover body which is used for sealing the first end and is provided with a liquid inlet; and a second cover body which is arranged at the second end and seals the inner cavity of the pipe body and the annular groove. The problem of experiment failure caused by the dry burning state of the upper end part of the rock core can be solved.

Description

technical field [0001] The invention relates to the field of oil and gas development experiment simulation, in particular to an experimental simulated oil production seepage and drilling plugging and anti-dry burning device. Background technique [0002] When doing drilling plugging and oil production seepage simulation experiments in the laboratory, in order to reduce the influence of boundary effects on the test results, larger-sized cores are often used as much as possible. The large-sized cores currently used can reach about φ100mm. Due to the limitation of indoor conditions, the displacement pumps equipped with them are limited in displacement. Conventionally, pumps with a displacement of 6l to 10l / min are already relatively large in displacement. In order to simulate the downhole conditions, the core loading device is often For heating and pressurizing operations, the temperature can reach tens of degrees to 150°C or even higher, and the pressure can range from tens to...

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Problems solved by technology

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide an experimental simulated oil production seepage and drilling plugging and anti-dry burning device, which can solve the problem that the upper part of the core is in a dry burning state, which causes the experimental failure problem

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