Bottom-water coning dynamic simulation experiment device in bottom-water oil reservoir development and simulation system

Abstract

The invention discloses a bottom-water coning dynamic simulation experiment device in bottom-water oil reservoir development and a simulation system. The simulation system comprises an upper box body and a lower box body which are integrated in a matching manner, and a percolation clapboard is arranged between the upper box body and the lower box body; the upper box body is provided with an upper cover, and the lower box body is provided with a lower cover; a cavity of the upper box body is filled with storage layer sand bodies and a horizontally arranged simulative horizontal well; a pipeline inlet is arranged on the upper cover, and the sidewall of the upper box body is provided with a fluid outlet; and a fluid inlet is arranged on the lower cover. The experiment device comprises a displacement source, a displacement pump, a middle container, the simulation system, a quality flowmeter and a collecting container. The experiment device disclosed by the invention can exactly influence the pressure drop of a horizontal well shaft and carry out an exacter experiment research on a rise rule of bottom water, the experiment results are realer and more believable, the rise state of the bottom water can be more directly observed, and the important guiding significance is provided for the bottom-water oil reservoir development.

Description

technical field [0001] The invention relates to a bottom water coning dynamic simulation experiment device and a simulation system in the development of a bottom water oil reservoir, and belongs to an experimental simulation device in the development process of an oil and gas reservoir. Background technique [0002] For the development of bottom water reservoirs with sufficient bottom water energy, after the oil field is put into production, with the production of crude oil, the formation pressure gradually decreases, and the bottom water energy is greater than the oil layer energy. When it reaches the oil layer, the oil well breaks through prematurely, the oil production drops sharply, and the water cut increases rapidly, which seriously affects the normal production of the oil well, and leads to the increase of water treatment costs and development costs, and the decline of oil reservoir production efficiency. Bottom water coning has become an important factor affecting th...

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Problems solved by technology

[0004] At present, the bottom water coning simulation experiment device is mainly a flat plate model. This type of physical model is composed of two plexiglass plates of the same size. It is only a two-dimensional model and can only simulate the situation of piston displacement in homogeneous reservoirs. , the simulated water cone shape is quite different from the real water cone shape

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