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A Method for Quantitative Evaluation of Hydrocarbon Expulsion Efficiency Based on Multiple Geological Factors

A quantitative evaluation and efficiency technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of not considering the hydrocarbon expulsion efficiency of source rocks, increasing scientific research costs, scientific research operation cycle, and long operation cycle.

Inactive Publication Date: 2018-06-22
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Generally speaking, the above eight methods all require a large amount of experimental analysis and test data or have the defects of long operating period of the experimental process, which virtually increases the scientific research cost and scientific research operation period, and does not consider that the hydrocarbon expulsion efficiency of source rocks is affected by various geological factors , such as organic matter abundance, type, maturity, source rock thickness, source-reservoir configuration relationship, sedimentary facies, and structural evolution history, and there is a certain error between the experimental data and the hydrocarbon expulsion efficiency under geological conditions
[0005] And with the deepening of exploration in mature exploratory well areas, the current hydrocarbon expulsion efficiency evaluation method can no longer meet the needs of current exploration intensity, and it is urgent to explore a convenient, feasible, fast, efficient, and easy to popularize and apply hydrocarbon expulsion efficiency evaluation method

Method used

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  • A Method for Quantitative Evaluation of Hydrocarbon Expulsion Efficiency Based on Multiple Geological Factors
  • A Method for Quantitative Evaluation of Hydrocarbon Expulsion Efficiency Based on Multiple Geological Factors
  • A Method for Quantitative Evaluation of Hydrocarbon Expulsion Efficiency Based on Multiple Geological Factors

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Embodiment 1

[0052] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 , Figure 29 , Figure 30 , Figure 31 , Figure 32 , Figure 33 , Figure 34 as shown,

[0053] A method for quantitatively evaluating hydrocarbon expulsion efficiency of source rocks with multiple geological factors, comprising the following steps:

[0054] A. Data collection: collect geochemical data, mud logging data, well logging data and geological data in the study area; among them, geochemical data include rock pyrolysis analysis test data, chloroform bitumen "A" analysis test data, organic carbon analysis Test data, kerogen mirror detection; well logging data include ...

Embodiment 2

[0065] Example 2: Taking Qingshankou Formation source rocks in the northern Songliao Basin as an example, using geochemical data, geological data, well logging data and mud logging data as support points, using the application "a quantitative evaluation of hydrocarbon expulsion by multiple geological factors Based on the "efficiency method", a three-dimensional hydrocarbon expulsion efficiency geological body of Qingshankou Formation source rocks was established, and a plane distribution map of hydrocarbon expulsion efficiency was illustrated by taking a certain layer as an example, and the distribution characteristics of conventional and unconventional oil and gas were analyzed. Technical route see figure 1 , the specific steps are:

[0066] (1) Data collection: collect geochemical data, mud logging data, well logging data and geological data in the study area; among them, geochemical data include rock pyrolysis analysis test data, chloroform bitumen "A" analysis test data, o...

Embodiment 3

[0128] Embodiment 3: A method for quantitatively evaluating hydrocarbon expulsion efficiency of source rocks with multiple geological factors, comprising the following steps:

[0129] 1) Collect and organize data: collect geochemical data, mud logging data, well logging data and geological data in the study area; among them, geochemical data include rock pyrolysis analysis test data, chloroform bitumen "A" analysis test data, organic carbon Analysis and test data, kerogen mirror detection; logging data include natural gamma ray, acoustic time difference, microelectrode, micropotential, deep lateral and shallow lateral logging curves; mud logging data include cuttings and mud logging data; geological Information includes sedimentary facies plans;

[0130] 2) Establish a method for evaluating hydrocarbon expulsion efficiency of source rocks: relying on component hydrocarbon generation kinetics, PYGC data, internationally popular PetroMod2014 hydrocarbon generation model sample c...

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Abstract

Provided is a method for multi-geological factor quantitative evaluation of hydrocarbon expulsion efficiency, which belongs to the technical field of evaluation and analysis of oil and gas resources. The method comprises: establishing a light hydrocarbon recovery factor model, so as to reduce light hydrocarbon loss in a hydrocarbon generation and expulsion thermal simulation test; in addition, accurately evaluating hydrocarbon expulsion efficiency of typical wells in combination with a hydrocarbon generation potential method and a practically measured value of hydrocarbon generation and expulsion; screening out factors influencing hydrocarbon expulsion efficiency: 1) comprehensively considering internal factors and external factors influencing hydrocarbon expulsion efficiency; 2) screening out four geological factors: organic matter abundance, an organic matter type, organic matter maturity and a source-reservoir configuration relationship; 3) establishing a model relationship between a single geological factor and hydrocarbon expulsion efficiency, and a model relationship between multiple geological factors and hydrocarbon expulsion efficiency; and 4) popularizing and applying an evaluation model for multi-geological factor quantitative evaluation of hydrocarbon expulsion efficiency on the plane, so as to obtain a plane distribution diagram of hydrocarbon expulsion efficiency of hydrocarbon source rocks by evaluation, explain distribution characteristics of conventional and unconventional oil and gas, and point out conventional and unconventional oil and gas enrichment regions.

Description

technical field [0001] The invention relates to a method for quantitatively evaluating hydrocarbon expulsion efficiency by multiple geological factors, and belongs to the technical field of oil and gas resource evaluation and analysis. Background technique [0002] To accumulate oil and gas into conventional oil and gas reservoirs, it must first migrate out of source rocks, and the initial migration of oil and gas is the first step in the entire oil and gas migration. The significance of hydrocarbon expulsion efficiency is the migration efficiency of oil and gas in source rocks and the efficiency of migration from source rocks to carrier layers and reservoirs. The hydrocarbon expulsion process of source rocks is the result of the comprehensive action of various complex geological factors. The maturity of organic matter also includes some external factors, such as pores, fractures, rock structure, internal pressure, formation temperature, interfacial tension, capillary press...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 王文广王民卢双舫郑民林承焰薛海涛田善思
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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