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Quantitative prediction method for diagenetic simulated porosity of carbonate reservoir

A carbonate reservoir and diagenesis simulation technology, applied in prediction, structured data retrieval, instrumentation, etc., can solve problems such as insufficient consideration, and achieve good prediction results

Active Publication Date: 2018-07-31
YANGTZE UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, this simple data fitting does not fully consider the differences in depositional environment, lithology, diagenetic materials, diagenesis, and tectonic processes between different strata, but only considers the differences in depositional environment, lithology, diagenetic materials, and diagenesis. Due to the comprehensive results, this reservoir prediction method has great limitations and is not suitable for carbonate reservoir prediction with strong heterogeneity

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  • Quantitative prediction method for diagenetic simulated porosity of carbonate reservoir
  • Quantitative prediction method for diagenetic simulated porosity of carbonate reservoir
  • Quantitative prediction method for diagenetic simulated porosity of carbonate reservoir

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Embodiment 1

[0076] A quantitative prediction method for diagenetic simulation porosity of carbonate reservoirs, comprising the following steps:

[0077] 1) Collect geological data in the study area, including the following:

[0078] ①Study results map of sedimentary facies in the study area;

[0079] ② Map of diagenetic facies research results in the study area;

[0080] ③ Distribution map of lithofacies in the study area;

[0081] ④ Provenance distribution map of the study area;

[0082] ⑤ Single well porosity data in the study area;

[0083] ⑥ Contour map of stratigraphic interface structure in the study area;

[0084] ⑦ Sedimentary cycle data in the study area.

[0085] 2) Establishment of original data database

[0086] The original data databases established include the following:

[0087] (1) Sedimentary facies type database F_m

[0088] Sedimentary facies types of carbonate reservoirs mainly include: basin-sponge spicule F_1, basin-powderstone F_2, basin-limestone F_3, open...

Embodiment 2

[0128] Based on the above method, taking the Changxing Formation carbonate reservoir in the northeast of a certain provincial basin as the research object, the spatial distribution of the Changxing Formation reservoir porosity is predicted, and the development of the Changxing Formation reservoir pores is analyzed, as follows:

[0129] 1) Collect geological data in the study area, including the following:

[0130](1) Sedimentary facies map of the Changxing Formation in the study area ( figure 1 );

[0131] (2) Lithofacies map of the Changxing Formation in the study area ( figure 2 );

[0132] (3) Burial depth contour map of the Changxing Formation in the study area ( image 3 );

[0133] (4) Provenance distribution map of the Changxing Formation in the study area ( Figure 4 );

[0134] (5) Sedimentary cycle map of the Changxing Formation in the study area ( Figure 5 );

[0135] (6) Layer thickness zoning map of the Changxing Formation in the study area ( Figure 6 ...

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Abstract

The invention discloses a quantitative prediction method for diagenetic simulated porosity of a carbonate reservoir. Based on the research on carbonate reservoir sedimentary facies, diagenetic materials, sedimentary cycle, diagenesis and strata thickness, the method establishes a geological parameter-diagenesis-porosity prediction model so as to laterally predicts the porosity of carbonate reservoir, determine the pore spatial distribution of the carbonate reservoir, and provide a basis for reservoir evaluation. The method fully considers the triggering mechanism of the heterogeneity of the carbonate reservoir, and can have a good predictive effect for the quantitative evaluation of the carbonate reservoir.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration and development, in particular to a quantitative prediction method for diagenetic simulation porosity of carbonate reservoirs. Background technique [0002] Carbonate reservoirs occupy a considerable proportion in the world oil and gas pattern. From a global perspective, carbonate reservoirs account for 20% of sedimentary rocks and more than 50% of proven oil and gas reserves. In my country, with the deepening of oil and gas exploration in marine carbonate reservoirs in recent years, several large and medium-sized oil and gas fields have been discovered in the Bohai Bay, Tarim, Ordos, and Sichuan Basins, demonstrating the importance of carbonate reservoirs. Great potential for exploration. Carbonate reservoirs have been deposited for a long time, have experienced multiple tectonic movements, suffered from strong weathering, denudation and leaching, and have strong formation hetero...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06F17/30
CPCG06Q10/04G06F16/21
Inventor 钱文蹈尹太举陈哲张昌民侯国伟祁倪军蒋蕾夏敏赵晓悦张琪
Owner YANGTZE UNIVERSITY
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