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A Comprehensive Analysis Method of Paleofluid Geochemistry

A geochemical and comprehensive analysis technology, applied in the field of fluid geochemical tracer research, can solve the problems of single tracer method, strong subjectivity, and low credibility of results, so as to achieve scientific and systematic results and reliable research results , the effects of various technical means

Active Publication Date: 2019-01-18
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] However, the current fluid geochemical tracer in oil and gas exploration research has defects such as single tracer method, strong subjectivity in the interpretation process, poor combination of accumulation geological background, and low reliability of the obtained results. Popularization and application of geochemical tracer technology in oil and gas accumulation research

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  • A Comprehensive Analysis Method of Paleofluid Geochemistry

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Embodiment

[0029] Such as figure 1 As shown, this embodiment provides a comprehensive analysis method for ancient fluid geochemistry, which includes early sampling, mid-term test analysis, and late summary, wherein the early sampling mainly includes:

[0030] (1) Obtain rock samples required for testing and analysis through two methods: field rock outcrop sampling and drilling core sampling.

[0031] (2) Use a micro-drilling rig to perform grinding and sampling on the surrounding rock and the filling of the rock sample before the isotope test and analysis. The powder particle size is 200 mesh and the mass is not less than 5g. According to different mineral types are carried out separately.

[0032] (3) Select rock samples containing holes, holes, and seam fillings, select fresh unweathered parts, and use a rock slicer to cut them into appropriate sizes for glass slides. Then the cut rock slices are ground on a grinder to make rock thin slices. The thickness of ordinary rock slices is ...

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Abstract

The invention discloses a comprehensive analysis method for paleo-fluid geochemistry and mainly aims to solve the problems of single tracing method, strong subjectivity of interpretation process, untight combination of a formed reservoir and geological background and low credibility of obtained achievements in the existing method. According to the comprehensive analysis method disclosed by the invention, the defects of single tracing method, low argument credibility, strong subjectivity of interpretation process, untight combination of the geological background and unreliable obtained achievements in an existing isotope geochemical tracing technique in research on formation fluid movement and oil and gas reservoir formation are overcome; the comprehensive analysis method has important significance for pushing application of fluid geochemistry tracing in oil and natural gas reservoir formation research.

Description

technical field [0001] The invention belongs to the field of fluid geochemical tracing research, and in particular relates to a comprehensive analysis method of ancient fluid geochemistry. Background technique [0002] For oil and gas reservoirs that have experienced multi-stage complex accumulation processes, in many cases, it is difficult to accurately evaluate the accumulation fluid activity and oil and gas preservation conditions of the target structure only by relying on the analysis of the current geological conditions for oil and gas accumulation, which seriously affects the The progress of oil and gas exploration and development of the target structure. Paleofluid geochemical tracing methods can reveal geological information such as the source, migration trajectory, and fluid properties of paleofluids, and are an effective means to trace the source of accumulation fluids and restore the evolution process of oil and gas accumulation. [0003] Geochemical tracing is a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84G01N21/65
CPCG01N21/65G01N21/84
Inventor 林雪梅袁海锋刘勇王成龙李坤高耀郑晶李曦
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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