Method of nuclear magnetic resonant rock sample analyzer label sample recipe

A nuclear magnetic resonance and analyzer technology, which is applied in the preparation of nuclear magnetic resonance rock sample porosity standard samples and the field of standard sample formulations for nuclear magnetic resonance rock sample analyzers, can solve problems such as inability to achieve accurate quantitative corrections

Inactive Publication Date: 2007-06-27
SHANGHAI GASOLINEEUM & CHEM EQUIP +2
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Calibration of nuclear magnetic resonance instrument for analyzing physical properties, currently, anhy

Method used

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Examples

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Effect test

Embodiment 1

[0031] A method for the standard sample formulation of a nuclear magnetic resonance rock sample analyzer is:

[0032] Step 1: Dissolve 2 grams of copper sulfate in 500 grams of deionized water to form X solution, control the concentration of copper sulfate to 0.4%, and fully dissolve it for later use;

[0033] Step 2: Dissolve 2 grams of copper sulfate in 500 grams of heavy water to form Y liquid, control the concentration of copper sulfate to 0.4%, and fully dissolve it for later use;

[0034] Step 3: Using a digital titrator, take 0.015 ml of liquid X and 9.985 ml of liquid Y to keep the total volume at a constant value of 10 ml, and control the volume ratio of liquid X to the sum of liquid X and liquid Y between 0.05% and 50%. , fully mixed to become 1% standard sample;

[0035] Take 0.15 ml of liquid X and 9.85 ml of liquid Y to keep the total volume at a constant value of 10 ml. The volume ratio of liquid X and liquid Y is 1.5%, and they are fully mixed to form a 10% sta...

Embodiment 2

[0037] Step 1: Dissolve 3 grams of chromium acetylacetonate in 500 grams of isooctane to form X liquid, control the concentration of chromium acetylacetonate to 0.6%, and fully dissolve it for later use;

[0038] Step 2: Dissolving 3 grams of chromium acetylacetonate in 500 grams of tetrabromomethane to form Y solution, controlling the concentration of chromium acetylacetonate to be 0.6%, and fully dissolving it for later use;

[0039] Step 3: Using a digital titrator, take 0.015 ml of liquid X and 9.985 ml of liquid Y to keep the total volume at a constant value of 10 ml, and control the volume ratio of liquid X to the sum of liquid X and liquid Y between 0.05% and 50%. , fully mixed to become a 3% standard sample;

[0040] Take 0.15 ml of liquid X and 9.85 ml of liquid Y to keep the total volume at a constant value of 10 ml. The volume ratio of liquid X and liquid Y is 1.5%, and they are fully mixed to form a 30% standard sample.

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Abstract

Based on different gyromagnetic ratios, liquid state components are divided to A class and B class in order to form series of standard sample in different porosities. The method includes steps: solving relaxation agent C class to A class so as to constitute X fluid, and controlling concentration of C in 0.002%-2%; solving relaxation agent C class to B class so as to constitute Y fluid, and controlling concentration of C in 0.002%-2%; using digital titrator to distribute X fluid, and Y fluid to make total volume keep a constant value 0.1-20 milliliter, and control volume ratio between X fluid, and Y fluid being as 0.05% - 50% in order to form series of standard sample with porosities 1% - 36%. The invention provides accurate quantitative correction of porosity parameter for nuclear magnetic resonance apparatus.

Description

technical field [0001] The invention relates to a method for formulating a standard sample of a nuclear magnetic resonance rock sample analyzer, in particular to a method for preparing a nuclear magnetic resonance rock sample porosity standard sample, and belongs to the technical field of nuclear magnetic resonance physical property analysis signal calibration. Background technique [0002] The petroleum industry needs to analyze the physical properties of rock samples and provide parameters such as porosity and permeability of rock samples. [0003] The nuclear magnetic resonance instrument can measure the water content of the object, and the size of the nuclear magnetic resonance signal is proportional to the water content. After the rock sample is saturated with water, the internal pores are filled with water, and the nuclear magnetic resonance signal is corrected by the porosity standard sample, and the porosity parameters of the rock sample are calculated. [0004] The...

Claims

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Application Information

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IPC IPC(8): G01N24/08
Inventor 袁建新沈亚光
Owner SHANGHAI GASOLINEEUM & CHEM EQUIP
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