A device and method for simulating oil displacement effects 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: 2018-09-04
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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  • A device and method for simulating oil displacement effects of oil layers with different dip angles
  • A device and method for simulating oil displacement effects of oil layers with different dip angles
  • A device and method for simulating oil displacement effects of oil layers with different dip angles

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing:

[0040] 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

In order to explore the oil displacement effect of different displacement agents applied to heterogeneous formations with dip angles, the invention discloses a device and method capable of simulating the oil displacement effects of oil layers with different dip angles. The device consists of a constant-speed displacement pump, a pressure gauge, three intermediate containers, a core holder with a variable inclination angle, an image analyzer, a measuring cylinder, and pipelines and valves connecting various parts. The three intermediate containers are respectively Place formation water, crude oil and displacement agent, and put tracer in the displacement agent. With this device, the inclination angle of the core can be changed by changing the inclination angle of the core holder, so as to study the influence of different inclination angles on the oil displacement effect, and return the relational expression between the liquid production rate and the inclination angle. The device and method can be used to simulate the flow law of formation crude oil during water flooding or gas flooding in dipping formations, so as to optimize suitable displacement agents.

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 experi...

Claims

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Application Information

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Patent Type & Authority Patents(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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