Heterogeneous physical simulation and foam displacement evaluation system for strong bottom water oil reservoir

Abstract

The invention discloses a heterogeneous physical simulation and foam displacement evaluation system for a strong bottom water oil reservoir. The heterogeneous physical simulation and foam displacementevaluation system for the strong bottom water oil reservoir comprises a heterogeneous physical simulation device and a foam displacement evaluation device, and the heterogeneous physical simulation device is used for simulating interlayer and different reservoir rhythm segments and obtaining a water cone shape; and the foam displacement evaluation device is connected with the heterogeneous physical simulation device and used for performing visual observation before and after foam displacement, performing foam sampling and completing a foam displacement of reservoir oil water plugging experiment and hydrodissection metering of oil gas. According to the heterogeneous physical simulation and foam displacement evaluation system for the strong bottom water oil reservoir, reservoir heterogeneity, bottom water displacement of reservoir oil with different strength and foam displacement of reservoir oil simulation can be carried out, oil reservoir bottom water can be simulated in a constant-speed and constant-voltage mode, the simulation conditions are evaluated and fed back through the foam displacement evaluation device, oil reservoir development is guided, and good experimental supportis provided for the oil reservoir development.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas exploration petroleum experiments in complex exploration areas, in particular to a heterogeneous physical simulation and foam displacement evaluation system for reservoirs with strong bottom water. Background technique [0002] The Triassic sandstone reservoirs in Tahe Oilfield of Sinopec Northwest Oilfield Company are massive bottom-water reservoirs, and the output of bottom-water reservoirs accounts for a large proportion of the production in the whole region. As the bottom water coning is obvious in the middle and later stages of oilfield development, the water cut rises rapidly, and it is difficult to stabilize the oilfield production. Therefore, it is necessary to simulate water coning by establishing a strong bottom water heterogeneity physical model to accurately grasp the bottom water in bottom water reservoirs. The shape of water cone, and indoor simulation and evaluatio...

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Problems solved by technology

[0003] According to inquiries, at present, domestic oilfield laboratories do not have a set of systems and methods that can well satisfy the physical simulation of strong bottom water heterogeneity and evaluation of foam displacement in Tahe Oilfield.

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