Experimental device for studying the effect of interlayers on sagd mining

Abstract

The invention relates to a test device for researching influences, on SAGD exploitation, of interlayers. The device comprises a test device shell and a power supply; a crude oil storage layer is arranged in a visualized test simulation device; an interlayer mould is arranged in the crude oil storage layer; a sealing ring is fixedly connected with the inner part of the visualized test simulation device; the inner part of the sealing ring is fixedly connected with two ends of the interlayer mould; and a lower well mould and an upper well mould are arranged in the visualized test simulation device in parallel. Through influences, on the lower well mould and the upper well mould, of the interlayer mould, the influences, on SAGD exploitation, of interlayers are reflected, and through the detaching of the sealing ring, the type, form, thickness and positions of the interlayer mould can be changed, so that influences, on SAGD exploitation, of interlayers with different types, different forms,different scales, different thicknesses and different development positions can be simulated conveniently, and the correctness and application range of the test device are greatly improved.

Description

technical field [0001] The invention relates to the technical field of SAGD mining, in particular to an experimental device for studying the influence of interlayers on SAGD mining. Background technique [0002] Steam-assisted gravity drainage, referred to as SAGD, is generally used in the exploitation of heavy oil or super-heavy oil, and has been successfully applied in the exploitation of heavy oil reservoirs in Liaohe Oilfield, Xinjiang Oilfield and other places in my country. Among them, a well layout method developed for SAGD is bi-horizontal wells. The principle of double horizontal well SAGD is: in the same oil layer, deploy two horizontal wells stacked one above the other. The upper well is the steam injection well, and the lower well is the production well. First, high-dry steam is injected from the steam injection well and the production well simultaneously , the high-dryness steam contacts in the cold oil area between the two wells to release the latent heat of v...

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Problems solved by technology

[0004] In order to solve the impact of different types, shapes and thicknesses of interlayers on SAGD mining, prevent heat loss in the process of SAGD mining, affect the extraction of crude oil, cause the loss of crude oil resources, and cause a large amount of capital loss, while failing to achieve SAGD The expected effect of mining, for this reason we invented an experimental device for studying the characteristics of interlayers on SAGD mining, to simulate the impact of interlayers on SAGD mining, and to solve the above technical problems

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