Carbonate reference material

A standard substance and carbonate technology, which is applied in the direction of measuring devices, instruments, and material analysis through optical means, can solve problems such as unfavorable development of oil and gas geochemical exploration technology, difficult measurement result monitoring, and difficult measurement results

Active Publication Date: 2008-07-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of a unified carbonate standard sample as a reference, there are the following problems: (1) It directly affects the accurate correction of the concentration of acid-lysis hydrocarbons, resulting in the acid-lysis hydrocarbon data obtained by different exploration subjects and different exploration areas in the oil and gas geochemical exploration industry. It is difficult to compare, which is not conducive to large-scale mapping; (2) It is impossible to accurately calibrate the carbonate measurement equipment; (3) It is difficult to arbitrate suspicious carbonate data, and it is difficult to monitor the measurement results; (4) It is impossible to comprehensively assess and evaluate Carbonate Measurement Methods Used by Different Exploration Bodies
This situation directly affects the accurate correction of the concentration of acidolysis hydrocarbons, making it difficult to compare the data of acidolysis hydrocarbons obtained by different exploration entities and different exploration areas in the oil and gas geochemical exploration industry; it is also impossible to accurately calibrate the carbonate measurement equipment, and it is difficult to measure Results are monitored
This is not only not conducive to the development of oil and gas geochemical exploration technology itself, but also not conducive to the regulation of oil and gas geochemical exploration market objects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]Select the Luoji block in the Hefei Basin to collect near-surface soil samples with a sampling volume of 100kg and a sampling depth of 2.0-2.5m. After the samples are coarsely crushed, ground, and mixed, a soil sample that meets the requirements of the carbonate standard sample test is prepared. The prepared samples were tested by variance analysis method (F test method) and average value consistency test method (T test method), which proved that their uniformity and stability were good.

[0031] Carbonate samples were analyzed in accordance with the relevant provisions of "Determination of Carbonate in Oil and Gas Prospecting Soil (Rock) Samples - Volumetric Method (DS / T02.11-2000)". According to the analysis procedure of the present invention, take sample 0.2g, add 15.00ml concentration to the sample and be the hydrochloric acid of 0.1mol / L, back drip with the sodium hydroxide solution of same concentration. The amount and concentration of hydrochloric acid and sodium...

Embodiment 2

[0033] The Luoji block in the Hefei Basin and the Xiakou block in the Jiyang Sag were selected to collect 50 kg of near-surface soil samples each, with a total sampling volume of 100 kg and a sampling depth of 2.0-2.5 m. The samples are crushed, ground, mixed and other processes to prepare soil samples that meet the requirements of the carbonate standard sample test. The prepared samples were tested by variance analysis method (F test method) and average value consistency test method (T test method), which proved that their uniformity and stability were good.

[0034] Carbonate samples were analyzed in accordance with the relevant provisions of "Determination of Carbonate in Oil and Gas Prospecting Soil (Rock) Samples - Volumetric Method (DS / T02.11-2000)". According to the analysis procedure of the present invention, take sample 0.2g, add 15ml concentration to sample and be the hydrochloric acid of 0.1mol / L, back drip with the sodium hydroxide solution of same concentration. ...

Embodiment 3

[0036] The Xiakou Block of Jiyang Depression was selected to collect near-surface soil samples with a sampling volume of 100kg and a sampling depth of 1.5-2.0m. The samples are crushed, ground, mixed and other processes to prepare soil samples that meet the requirements of the carbonate standard sample test. The prepared samples were tested by variance analysis method (F test method) and average value consistency test method (T test method), which proved that their uniformity and stability were good.

[0037] Carbonate samples were analyzed in accordance with the relevant provisions of "Determination of Carbonate in Oil and Gas Prospecting Soil (Rock) Samples - Volumetric Method (DS / T02.11-2000)". According to the analysis program of the present invention, 0.1 g of the sample is weighed. Add 15ml of hydrochloric acid with a concentration of 0.1mol / L to the sample, and back-titrate with a sodium hydroxide solution of the same concentration. The amount and concentration of hyd...

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PUM

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Abstract

The invention discloses a carbonate certified reference material, belonging to the technical field of measurement value transmission, for resolving the demand of altered carbonate certified reference material and providing a carbonate certified reference material with accurate value for globe chemical analysis test. The inventive product has uniform granularity lower than 80 meshes, while the carbonate content is 0.351-20.37%, which is prepared by selecting the soil selected from Hefei basin Luoji block, Jiyang concave Xiakou block, Jiyang concave Duoshiqiao block and Zhoukou basin Tongxu block to be broken, grinded and mixed. And the invention uses a series of analysis method to analyze and process multiple cooperation value certification, uses a series of reference rules to provide a best value and an uncertainty. The inventive certified reference material is physical standard, which can resolve prior problems and is a new technique on world.

Description

technical field [0001] The present invention relates to the technical field of measuring and testing standard value transfer, more specifically, the present invention relates to a method for various geochemical analysis and testing, which can be used as an instrument for carbonate measurement in oil and gas geochemical exploration, soil investigation and environmental investigation. standard substance. Background technique [0002] The carbonate method is one of the most commonly used methods in oil and gas geochemical prospecting. Its application includes two aspects: one is combined application with acid hydrolysis hydrocarbon, and it is used as an interference factor of acid hydrolysis index for research; the other is as an independent oil and gas geochemical prospecting index, which is directly used to delineate oil and gas prospect areas . [0003] The most important use of the carbonate method is in combination with acid hydrolysis indicators. The acid hydrolysis te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/00G01N1/38G01N35/00G01N21/17G01N30/00
Inventor 李武宁丽荣吴传芝邵海宁
Owner CHINA PETROLEUM & CHEM CORP
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