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Unitary flooding experimental device

An experimental device and one-dimensional technology, applied in wellbore/well components, production fluid, earthwork drilling and production, etc., can solve the problem that the displacement fluid cannot be injected continuously

Active Publication Date: 2020-10-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a unitary flooding experimental device to solve the problem that the displacement fluid cannot be continuously injected in the prior art and ensure the continuity of the experiment

Method used

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the fea...

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Abstract

The invention provides a unitary flooding experimental device, including a constant-flux pump, a first intermediate container, a second intermediate container, and a rock core holder. Input ports of the first intermediate container and the second intermediate container are directly communicated with an output port of the constant-flux pump through a pipe. An upper valve of the first intermediate container is communicated with the rock core holder through a first pipe, and the first pipe is provided with a first valve. An upper valve of the second intermediate container is communicated with therock core holder through a second pipe, and the second pipe is provided with a second valve. When the unitary flooding experimental device switches a displacement fluid, injection pressure is ensuredto be constant, and a liquid injection process in a sample process is ensured to be continuous without interrupt.

Description

technical field [0001] The invention relates to a displacement experimental device for testing oil recovery rate, in particular to a single element flooding experimental device. Background technique [0002] The displacement test is an experiment in which the oil in the core of the rock is replaced by permeation at a certain temperature and pressure at a certain flow rate with water, polymers or surfactants to test the oil recovery performance. [0003] The existing unitary flooding experimental device includes: a core holder, a No. 1 intermediate container, a No. 2 intermediate container and a flow pump. Wherein, the No. 1 intermediate container and the No. 2 intermediate container are respectively connected with the advection pump and the core holder through valves. During the experiment, the rock core in the rock core holder is injected with different liquids by respectively opening the valves of the No. 1 intermediate container or the No. 2 intermediate container. For ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/22E21B43/20
CPCE21B43/16E21B43/20
Inventor 吕孝明杨向同袁泽波孟祥娟宋文文徐海霞安志杰唐广杰庹维志王鹏兰美丽钟婷
Owner PETROCHINA CO LTD