Three-dimensional visual physical simulation experimental device

Abstract

The invention relates to a three-dimensional visual physical simulation experimental device used for simulating indoor core flow experiments for non-homogenous reservoirs under high temperature and high pressure in the petroleum industry. The three-dimensional visual physical simulation experimental device mainly comprises a model body, an inner wall insulating coating, a gland, a model well mesh, a maturity connector, a main support and the like. The model body is provided with 8 seal screws. The gland is fixed to the outer side of the main support of the model body through an end cover. An internal thread of the gland is in connected fit with an external thread of the gland. A cap is parallelly disposed outside the gland. An internal thread of the cap is in connected fit with the external thread of the gland. The gland compresses an internal core through a hold-down bolt. The upper gland is evenly provided with bolt holes and a plurality of vertical holes. Injection wells and withdrawal wells can be simulated. Different well spacing manners and different well spaces can be simulated by changing the position of the device. The model body is provided with round windows in front and rear and at the bottom, and the round windows allow users to observe conveniently. The whole model is disposed on a rotating support and allows simulated stratum angle to be tilted. The three-dimensional visual physical simulation experimental device is made of stainless steel, is provided with fluororubber seal rings and accordingly is available for long-term operation at 120 DEG C.

Description

technical field [0001] The invention relates to a visual physical simulation device for simulating the influence of development methods such as water flooding, polymer flooding and three-element flooding on mining effects in indoor experiments, and in particular to a three-dimensional visual physical simulation experimental device. Background technique [0002] In the process of oil extraction, the innovation of oil extraction technology will have an important impact on the research of enhanced oil recovery working fluids and the development of working fluids that can meet the needs of different development periods of oilfields. [0003] The "3D visual physical simulation experiment device" is mainly used for the research on the effects of water flooding and chemical flooding and its related mechanisms. The physical simulation research of displacement oil recovery is carried out under the temperature and pressure of the simulated reservoir, and different types of displacement...

AI Technical Summary

Problems solved by technology

The existing models have the following deficiencies: first, the working pressure is too low to explain the occurrence of underground high pressure; second, there is no overlying pressure system, and the sand used to simulate the stratum is in a loose state, which does not match the compacted state of the stratum; The third is that there are no saturation points and pressure measuring points in the model, and the oil-water distribution and pressure field in the model cannot be effectively monitored during the test; the fourth is that there is no visualization surface on the model, and the seepage of fluid in the reservoir cannot be observed feature

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