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Device and method capable of simulating oil displacement efficiencies of oil layers with different dip angles

A technology for oil displacement and oil layer application in the field of experimental devices for simulating the oil displacement effect of oil layers with different dip angles. It can solve the problems of no experimental devices and achieve the effect of large dip angle range, scientific and reasonable structure, and large angle change space.

Active Publication Date: 2016-11-16
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no such experimental device in the prior art

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  • Device and method capable of simulating oil displacement efficiencies of oil layers with different dip angles
  • Device and method capable of simulating oil displacement efficiencies of oil layers with different dip angles
  • Device and method capable of simulating oil displacement efficiencies of oil layers with different dip angles

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with accompanying drawing:

[0043] Depend on Figure 1 to Figure 7 As shown, this kind of device that can simulate the oil displacement effect of oil layers with different dip angles includes a constant speed displacement pump 1, an annular pressure pump 17, a first intermediate container 6, a second intermediate container 7, a third intermediate container 8, a A pressure gauge 2, a second pressure gauge 12, a third pressure gauge 34, an image analyzer 26, the first intermediate container inlet valve 3, the second intermediate container inlet valve 4, the third intermediate container inlet valve 5, the first intermediate container Outlet valve 9, second intermediate container outlet valve 10, third intermediate container outlet valve 11, intermediate container master control valve 13, core holder outlet valve 27, variable inclination angle core holder base plate 16, variable inclination angle core hol...

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Abstract

The invention discloses a device and method capable of simulating oil displacement efficiencies of oil layers with different dip angles in order to explore oil displacement efficiencies generated when different displacing agents are applied to heterogeneity stratums with dip angles. The device is composed of a constant-speed displacement pump, pressure gages, three intermediate containers, a variable-dip-angle core holder, an image analyzer, a measuring cylinder, pipelines and valves, wherein the pipelines and the valves are used for connecting all the parts. The three intermediate containers contain stratum water, crude oil and a displacing agent correspondingly. A tracer agent is added into the displacing agent. By adoption of the device, the dip angle of a core can be changed by changing the dip angle of the core holder, so that the influence of the different dip angles on the oil displacement efficiency is studied, and a relation formula of the liquid production capacity and the dip angle is regressed. By use of the device and method, the flowing law of stratum crude oil in the water flooding or gas flooding process of the stratum with the dip angle can be simulated, so that an appropriate displacing agent is selected preferably and conveniently.

Description

technical field [0001] The invention relates to an experimental device and method used in the field of oil recovery for simulating the oil displacement effect of oil layers with different dip angles. Background technique [0002] Oil and gas reservoirs are the accumulation of oil and gas in a single trap, with a unified pressure system and oil-water contact, and are the basic unit of oil and gas accumulation in the crust. The various rock layers and rock masses that make up the crust have been deformed and displaced by the stress caused by the movement of the crust during the long geological history, thus forming various geological structures on the crust. Due to the influence of crustal movement, most of the rock formations in nature are inclined, and the rock formation intersects the geoid at a certain angle. Therefore, the influence of the dip angle on oil and gas migration should be considered during the development of oil and gas fields. When performing indoor experime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/22E21B49/00
CPCE21B43/16E21B49/00
Inventor 张继成郑灵芸匡力陈新宇杨昕谅张军
Owner NORTHEAST GASOLINEEUM UNIV
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