Method for representing physics features of deep carbonate rocks

A petrophysics, carbonate rock technology, applied in earthwork drilling, scientific instruments, permeability/surface area analysis, etc. problems, such as the inability to characterize the petrophysical characteristics of deep carbonate rocks, etc.

Active Publication Date: 2018-02-23
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

However, due to the complex pore structure and strong heterogeneity of deep carbonate rocks, the above-mentioned traditional methods cannot accurately characterize the petrophysical characteristics of deep carbonate rocks, and thus cannot accurately evaluate deep carbonate rocks. The development characteristics of the rock reservoir

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  • Method for representing physics features of deep carbonate rocks
  • Method for representing physics features of deep carbonate rocks
  • Method for representing physics features of deep carbonate rocks

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[0041] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] An embodiment of the present invention provides a method for characterizing the petrophysical characteristics of deep carbonate rocks, which is used to study the petrophysical characteristics of deep carbonate rocks buried deeper than 4,500 meters, such as figure 1 As shown, the method includes:

[0043] Step 101: Determine the sampling position of the carbonate rock.

[0044] This application first needs to determine the s...

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Abstract

The invention relates to the technical field of exploration and development of oilfields, in particular to a method for representing physics features of deep carbonate rocks. The method comprises thefollowing steps of identifying the surface structure features of a rock slice corresponding to a rock core plunger sample, and determining the lithofacies type of the rock slice; performing common-pressure magnetic resonance testing and rock physics property testing on the rock core plunger sample, wherein the rock physics properties comprise porosity, permeability and pore structure of the rock;according to the lithofacies type of the rock core plunger sample, the rock physics property testing results and the common-pressure magnetic resonance testing results, establishing an identificationplate, a first relation, a second relation and a third relation; according to the identification plate, the first relation, the second relation and the third relation, respectively representing the rock physics features of the target rock sample at normal pressure, and the rock physics features under the burying depth according to the common-pressure magnetic resonance testing results and the negative pressure magnetic resonance testing results of the target rock sample.

Description

technical field [0001] The invention relates to the technical field of oilfield exploration and development, in particular to a method for characterizing the petrophysical characteristics of deep carbonate rocks. Background technique [0002] In the process of oil and gas exploration and development, the oil and gas industry needs to accurately characterize the petrophysical characteristics of underground reservoirs to evaluate the storage capacity of underground reservoirs, judge the economic value of oil and gas reservoirs and exploration and development strategies, and improve the accuracy of exploration. sex and economic benefits. Among them, the petrophysical characteristics mainly include porosity, permeability and pore structure. Therefore, an accurate characterization of the petrophysical characteristics of the reservoir has important guiding significance for the exploration and development of oil and gas. [0003] Carbonate reservoirs are one of the main reservoir...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N24/08G01N15/08
CPCG01N24/081G01N33/24G01N1/08G01V3/14E21B49/02
Inventor 田飞薛旭刘乃贵杨长春
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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