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A Tracing Method for Oil Migration Direction

An oil migration and oil technology, applied in the field of tracer, can solve problems such as loss of target compounds, complex pretreatment, secondary pollution of samples, etc., and achieve the effect of simple and clear identification methods

Active Publication Date: 2018-12-21
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

Because these small molecular compounds are easily affected by biodegradation and water washing, and sample analysis requires complex pretreatment, the treatment process is likely to cause secondary pollution of the sample and loss of target compounds

Method used

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  • A Tracing Method for Oil Migration Direction
  • A Tracing Method for Oil Migration Direction
  • A Tracing Method for Oil Migration Direction

Examples

Experimental program
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Effect test

Embodiment 1

[0045] 1) Oil sample collection:

[0046] Oil samples from the Rimbey-Meadowbrook biological reef chain oil and gas reservoirs in the Upper Devonian in the Western Canada Basin were collected at multiple points. During the collection process, ensure that the crude oil samples are not subject to secondary pollution. After the samples are collected, they are sealed and stored in low-temperature refrigeration.

[0047] 2) Sample analysis:

[0048] Take about 10 mg of crude oil sample and dissolve it in 1 mL of toluene, then take 20 μL of the sample solution and redissolve it in 1 mL of toluene:methanol (1:1 / V:V) mixed solution, add 10 μL of 28 wt% ammonia water to the resulting solution, shake gently to make It was mixed well and then subjected to Fourier transform ion cyclotron resonance mass spectrometry. The analyzer is an American Bruker solariX FT-ICR MS with a magnetic field strength of 12.0T. Using ESI ionization source, negative ion mode. FT-ICR MS main instrument par...

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Abstract

A method for tracing the migration direction of petroleum, comprising the following steps: 1) collecting at least two petroleum samples of homogeneous oil derived from the same source rock; 2) sample analysis, performing Fourier transform ion cyclotron resonance mass spectrometry analysis; 3 ) data processing, extract the carbon number, abundance and DBE structure information of N1S1 compounds, and obtain the abundance intensity of DBE=14, DBE=15, DBE=17 three types of N1S1 compounds; 4) determine the oil migration direction: according to DBE=14, DBE=15, DBE=17 Abundance intensity of the three types of N1S1 compounds, respectively calculate the abundance intensity percentages of the three types of compounds, and then analyze the abundance percentages of the three types of compounds, DBE=15 type N1S1 The direction in which the percentage of compound abundance increases is the direction of oil migration.

Description

technical field [0001] The invention relates to a tracing method, in particular to a tracing method in the petroleum field. Background technique [0002] Scholars at home and abroad have done a lot of fruitful work by using various geochemical parameters to study the direction and path of oil and gas migration, and even to calculate the distance of oil and gas migration. Among them, the research on non-hydrocarbon compounds containing N, S, and O heteroatoms has developed rapidly. Scholars at home and abroad have successively developed various N-, S-, and O-containing compounds for the study of oil and gas migration, and successfully extracted a variety of N-, S-, and O-containing compound indicators, which have been obtained in oil and gas exploration practice. It has been widely used and achieved remarkable results. [0003] The organic nitrogen-containing compounds in crude oil mainly appear in the form of neutral (non-basic) pyrrole aromatic compounds, while the basic p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/62
Inventor 蒋启贵刘鹏黎茂稳申宝剑陶国亮马媛媛宋晓莹
Owner CHINA PETROLEUM & CHEM CORP
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