Modeling method and modeling system for reef type reservoir body

A modeling method and reservoir technology, applied in the field of reef-shoal-type reservoir modeling methods and systems, can solve the problem of lack of reservoir architecture analysis and distribution rules, failure to accurately characterize the internal reservoirs of reef-shoal-type reservoirs Heterogeneity, lack of internal structure of reef-shoal reservoirs, and fine characterization of boundaries

Active Publication Date: 2018-03-06
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0002] In the field of oil and gas geophysics, the existing relatively mature modeling methods are mainly suitable for clastic rock reservoirs and porous carbonate rock reservoirs controlled by sedimentation, and there is a lack of reservoir configuration analysis in the modeling process Constrained by the law of distribution and distribution, the fine description of the internal structure and boundary of reef-beach reservoirs has not been realized, which is quite different from the geological reality, and even does not conform to geological laws; at the same time, the internal reservoirs of reef-beach reservoirs have not been ac

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  • Modeling method and modeling system for reef type reservoir body
  • Modeling method and modeling system for reef type reservoir body
  • Modeling method and modeling system for reef type reservoir body

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Embodiment approach 1

[0017] figure 1 A flowchart showing the steps of the method for modeling a reef-shoal type reservoir according to the present invention.

[0018] In this embodiment, the method for modeling reef-flat reservoirs according to the present invention may include: step 101, based on seismic data, identify the development intervals of reef-flat reservoirs in a single well, and determine the development intervals of reef-flat reservoirs ; Step 102, based on the single-well reef-beach type reservoir development interval, obtain the reef-beach type reservoir sedimentary microfacies plane distribution map; Step 103, based on the reef-bund type reservoir development interval and vertical evolution sequence, obtain the reef-beach type reservoir Reef-shoal type reservoir reservoir development model, establish reef-shoal type reservoir configuration database; step 104, based on the reef-shoal type reservoir sedimentary microfacies plane distribution map and seismic inversion data body, combi...

Embodiment approach 2

[0053] According to an embodiment of the present invention, a reef-flat reservoir modeling system is provided, and the system may include: identifying a single-well reef-flat reservoir development layer based on seismic data, and determining the reef-flat reservoir The unit of collectively developed layers; the unit used to obtain the planar distribution map of reef-beach reservoir sedimentary microfacies based on the developed layers of reef-beach type reservoirs in a single well; Based on the evolution sequence, the reservoir development model of reef-beach type reservoirs is obtained, and the units of the reef-beach type reservoir configuration database are established; it is used to combine the sedimentary microfacies plane distribution map and seismic inversion data body of reef-beach type reservoirs, combined with geological analysis Layers and seismic interpretation horizons to obtain the unit of distribution probability volume of reef-beach reservoirs; Probabilistic vo...

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Abstract

The invention discloses a modeling method and a modeling system for a reef type reservoir body. The method comprises the steps of based on seismic data, recognizing the reef type reservoir body development layer section of a single well, and determining the reef type reservoir body development layer section; based on the reef type reservoir body development layer section, obtaining a reef type reservoir body deposition microfacies plane distribution diagram; based on the reef type reservoir body development layer section and a vertical evolution sequence, obtaining a reef type reservoir body reservoir development mode, and establishing a reef type reservoir body configuration database; based on the reef type reservoir body deposition microfacies plane distribution diagram and a seismic inversion data body, obtaining a reef type reservoir body distribution probability body through combining geological stratification and seismic interpretation levels; and based on the reef type reservoirbody configuration database, the reef type reservoir body reservoir development mode and the reef type reservoir body distribution probability body, establishing a reef type reservoir body three-dimensional geological model. According to the invention, by reinforcing the geological mode and the regular constraint, the high-precision reef type reservoir body modeling is realized.

Description

technical field [0001] The invention relates to the technical field of oil and gas geophysics, and more specifically, to a method and system for modeling reef-shoal type reservoirs. Background technique [0002] In the field of oil and gas geophysics, the existing relatively mature modeling methods are mainly suitable for clastic rock reservoirs and porous carbonate rock reservoirs controlled by sedimentation, and there is a lack of reservoir configuration analysis in the modeling process Constrained by the law of distribution and distribution, the fine description of the internal structure and boundary of reef-beach reservoirs has not been realized, which is quite different from the geological reality, and even does not conform to geological laws; at the same time, the internal reservoirs of reef-beach reservoirs have not been accurately characterized The heterogeneity feature cannot meet the accuracy requirements of 3D geological modeling of reef-shoal reservoirs. [0003...

Claims

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Application Information

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IPC IPC(8): G01V1/30G01V99/00G06T17/05
CPCG01V1/306G01V99/005G01V2210/624G01V2210/665G06T17/05
Inventor 胡向阳郑文波游瑜春刘国萍冯琼石志良刘建党
Owner CHINA PETROLEUM & CHEM CORP
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