A centrifugal analysis method for oil shale samples

A centrifugal analysis and rock sample technology, applied in the direction of analyzing materials, measuring devices, instruments, etc., can solve the problems of large error and low efficiency, and achieve the effect of small error, high efficiency and reasonable setting

Inactive Publication Date: 2013-08-07
太仓金旋实验设备有限公司
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  • Abstract
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Problems solved by technology

This approach is not only inefficient, but also has a large error

Method used

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  • A centrifugal analysis method for oil shale samples
  • A centrifugal analysis method for oil shale samples
  • A centrifugal analysis method for oil shale samples

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[0027] For the purpose of full disclosure, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are only used to explain the present invention, and are not used to limit the protection scope of the present invention.

[0028] Such as figure 1 As shown, the present invention provides a method for centrifugal analysis of petroleum rock samples, including the following steps: 1) rock sample preparation and placement: put the prepared rock samples into centrifugal cups (add oil or water as required), and then Install the centrifuge cup on the rotor in the centrifuge chamber;

[0029] 2) Vacuum environment preparation: close the door of the centrifuge chamber and turn on the vacuum pump to make the inside of the centrifuge chamber vacuum;

[0030] 3) Parameter setting and start-up: start the frequency conversion motor, and set the speed o...

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Abstract

The invention discloses a centrifugal analysis method for oil shale samples, and the method comprises the steps of: 1) a prepared shale sample is placed separately into centrifuge cups, and then the centrifuge cups are mounted on the rotor of a centrifuge chamber; 2) the door of the centrifuge chamber is closed, and a vacuum pump is started to make the inside of the centrifuge chamber vacuum; 3) a variable frequency motor is started, and the speed of the variable frequency motor is set, to make the variable frequency motor drive the centrifuge cups in the centrifuge chamber to rotate; 4) a strobe lamp is turned on, wherein the strobe lamp emits synchronous light when each centrifuge cup rotates just above the strobe lamp; and after the synchronous light emitted from the strobe lamp passes through the light transmitting slot of the centrifuge cup and a liquid collection cup, and after a total reflection through a prism, the synchronous light enters into a camera device to complete liquid level collection of the centrifuge cup; 5) oil - water interface image of each centrifuge cup is recorded, and the volume of oil or water of each centrifugal cup is calculated; and 6) based on the volume of oil or water obtained in step 5), the capillary pressure curve of the shale sample is obtained. The method of the present invention has high efficiency and small errors.

Description

technical field [0001] The invention belongs to the technical field of petroleum rock sample analysis, and relates to a method for continuously measuring capillary pressure curves of rock samples. Background technique [0002] Petroleum resources occupy an extremely important position in the national economy and people's livelihood, and are indispensable resources for social development and human survival. With the rapid development of industry, the growth of population and the improvement of people's living standards, energy shortage has become a worldwide problem, and more and more countries pay attention to energy security. [0003] At present, in the exploration and development of oil fields, especially in the secondary oil recovery and tertiary oil recovery of oil fields, it is necessary to analyze the sampled rock samples to provide a theoretical basis. In rock sample analysis, the most important rock sample analysis item One is to measure the capillary pressure data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 宋卫国蔡建林
Owner 太仓金旋实验设备有限公司
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