Fluid form visual observation system and oil reservoir exploration method

Abstract

The invention provides a fluid form visual observation system and an oil reservoir exploration method. The system comprises a liquid injection device connected with a reaction kettle and used for injecting fluid into the reaction kettle; a flow control device connected with the reaction kettle and used for controlling the flow rate of the fluid in the reaction kettle from top to bottom; and a recovery device connected with the reaction kettle. The side wall of the reaction kettle is provided with a visual window, and the visual window is used for observing the form of the fluid in the reactionkettle. By arranging the flow control device and the recovery device, the system can achieve the large-flow condition matched with the site of an oil field, the visual window is arranged on the sidewall of the reaction kettle, and the reaction kettle is easy to manufacture into a pressure-resistant container, and the contradiction between three mutual restriction factors such as high pressure, large flow and visualization is solved, the flow equivalent simulation under the oil reservoir condition can be carried out through the system, and therefore oil reservoir exploitation can be carried out more efficiently and accurately.

Description

technical field [0001] The invention relates to the technical field of oil field development, in particular to a fluid form visualization observation system and an oil reservoir exploration method. Background technique [0002] At present, to simulate the reservoir environment in the laboratory, the method of "similar simulation" is generally adopted. For example, the method of proportional scaling can be used to simulate the volume of the reservoir. However, in the actual experiment, the value of some parameters must be "equivalent simulation" in the simulation, that is, the parameter value of the experiment must be equal to the field value. The experiment is carried out under the same environment as the bottom hole pressure of the oil field, so that the required accurate value can be obtained, which requires the pressure resistance of the experimental device to be able to withstand the pressure of the bottom hole of the oil field. [0003] However, there are still some pa...

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Problems solved by technology

[0004] Existing pipe flow research devices for flow equivalent simulation are generally made of long organic plastic pipe connections. This material has the advantages of equal flow simulation and visualization, but the pressure resistance of the device is generally below 2MPa, which is different from the oil field field pressure conditions (above 10MPa) the difference is too far, when it comes to the pipe flow research of a certain medium under high pressure conditions in the oil field, it cannot be simulated by this device

[0005] For the above problems, no effective solutions have been proposed so far

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