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Method for measuring crude oil density

A technology for density measurement and crude oil, applied in measuring devices, specific gravity measurement, instruments, etc., can solve the problems of slow measurement speed, narrow application range, cumbersome steps, etc., and achieve the effects of easy operation, simple method, and simple sample processing

Active Publication Date: 2019-02-26
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many methods for measuring the density of crude oil, such as U-shaped vibrating tube method, pressure density meter method, etc. These methods are complex in operation, cumbersome in steps, slow in measurement speed, and narrow in scope of application, and can only be used in laboratory measurements

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  • Method for measuring crude oil density
  • Method for measuring crude oil density

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Embodiment Construction

[0031] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0032] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.

[0033] In addition, the steps shown in the flow dia...

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Abstract

The invention discloses a method for measuring crude oil density. The method comprises: 1, placing crude oil to be tested in a preset container and performing constant temperature treatment, 2, carrying out T1-T2 two-dimensional nuclear magnetic resonance analysis on the crude oil subjected to constant temperature treatment to obtain oil peak centroids (T2, T1) of the crude oil to be tested, 3, calculating a ratio of horizontal to vertical coordinates of the oil peak centroids (T2, T1) of the crude oil to be tested to obtain an oil peak centroid coordinate ratio, and based on a relationship curve of a preset oil peak centroid coordinate ratio and density of the crude oil, according to the oil peak centroid coordinate ratio, determining the density of the crude oil to be tested. The methodsolves the problem that the existing method only utilizes the T1 spectrum or the T2 spectrum and has limitation and problems in sample processing complexity, time taking difficulty and narrow application range, has a simple sample processing process in implementation, considers more comprehensive factors and is free of sample degassing, sample weighing or volume measurement.

Description

technical field [0001] The invention relates to the technical field of petroleum engineering, in particular to a method for measuring the density of crude oil. Background technique [0002] The density of crude oil is an important factor in determining the price of crude oil. As far as processing is concerned, the types of crude oil processed by my country's refineries are relatively complex, and most refineries are processing blended crude oil. Therefore, rapid and accurate detection of crude oil density is of great significance for optimizing feed, blending, and improving production efficiency of enterprises. [0003] At present, there are many methods for measuring the density of crude oil, such as U-shaped vibrating tube method, pressure density meter method, etc. These methods are complicated in operation, cumbersome in steps, slow in measurement speed, and narrow in scope of application, and can only be used in laboratory measurements. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): G01N9/24
CPCG01N9/24
Inventor 王志战李新李三国盖姗姗廖东良
Owner CHINA PETROLEUM & CHEM CORP
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