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Core huff and puff experiment pressure monitoring device

A pressure monitoring and core technology, used in measuring devices, using stable tension/pressure to test the strength of materials, instruments, etc., can solve the problems of inaccurate oil and gas production measurement, inaccurate pressure measurement results of huff and puff experiments, etc.

Active Publication Date: 2022-04-12
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Description
  • Claims
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Problems solved by technology

[0005] This application provides a pressure monitoring device for the core huff and puff experiment, which is used to solve the problems of inaccurate pressure measurement results of the huff and puff experiment and inaccurate oil and gas production measurement caused by the direct contact between the pressure measurement fluid and the rock core

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  • Core huff and puff experiment pressure monitoring device
  • Core huff and puff experiment pressure monitoring device
  • Core huff and puff experiment pressure monitoring device

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Embodiment Construction

[0064]In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are part of the embodiments of this application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0065] In the development of oil reservoirs, low-permeability and ultra-low-permeability reservoirs have become the main oil and gas resources developed, accounting for more than 70% of the total oil and gas resources. This kind of oil and gas reservoir is extremely tight, and the main development method is reservoir huff and puff, which has achieved certain results. Reservoir huff and puff development is to reple...

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Abstract

The application provides a pressure monitoring device for a core huff and puff experiment. The device includes: a core unit and a pressure measurement unit; the core unit is connected to the pressure measurement unit; interaction, the core is located inside the core unit; the pressure measurement unit is used to measure the core pressure value when the experimental medium interacts with crude oil; the pressure measurement unit includes a piston, which is located inside the pressure measurement unit, and the piston is used to separate the core from the test Hydraulic fluid. The use of the piston avoids the direct contact between the pressure measuring fluid and the core, improves the measurement accuracy of the core throughput experiment, reduces the error of the experimental measurement, makes the experimental results more accurate and reliable, and makes the oil and gas production measurement more accurate.

Description

technical field [0001] The application relates to the technical field of oil reservoir development, and proposes a pressure monitoring device for a core huff and puff experiment. Background technique [0002] In the development of oil reservoirs, low-permeability and ultra-low-permeability reservoirs have become the main oil and gas resources developed, accounting for more than 70% of the total oil and gas resources. This kind of oil and gas reservoir is extremely tight, and the main development method is reservoir huff and puff. [0003] Reservoir huff and puff development is to replenish formation energy by injecting medium into the reservoir, shutting down the well to maintain a certain pressure, and then opening the well for production. In the existing pressure monitoring device, the pressure measuring pipeline is directly connected with the pressure measuring ports at the front and rear ends of the rock core, and the rock core is in direct contact with the pressure mea...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02G01N3/12
CPCG01N3/02G01N3/12
Inventor 陈浩左名圣杨明洋王宇
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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