Method for modeling complex geology strata sequence

A technology for complex geology and structural layers, applied in the field of oil and gas exploration and development, can solve problems such as unclear division of small layers, unclear grid formation, and uncertain direction of small fault sequences

Active Publication Date: 2014-03-12
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0005] In order to solve the problems of unclear division of small layers, uncertain trend of small fault sequence, unclear meshing, pinch-out point and onlap point cannot be determined in the sequence modeling process of complex geological structures with reverse faults, this paper The invention proposes a double constraint method of logging geological horizons (layers) and faults to establish an accurate and reasonable sequence model, which improves the efficiency of sequence modeling and saves the working time of reservoir modeling workers. and the results obtained are more reasonable

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  • Method for modeling complex geology strata sequence
  • Method for modeling complex geology strata sequence
  • Method for modeling complex geology strata sequence

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Embodiment Construction

[0037] Various example embodiments will now be described more fully with reference to the accompanying drawings, in which some example embodiments are shown.

[0038] figure 1 A flow chart showing a method for sequence modeling according to an embodiment of the present invention.

[0039] refer to figure 1, in step S110, find out and record the faults associated with each horizon segment by performing the first group segment on the horizon and fault scatter point data of seismic interpretation, wherein the horizon is divided into horizon segments by faults, A horizon consists of multiple horizon segments. Since the horizon information stored in the database is stored in the form of scattered points, the horizon data extracted from the database is called horizon scattered point data. For scatter data, it is convenient to obtain the CDP (common depth point) coordinates and time (depth) value of each point, but the scatter data itself lacks the correlation between layer points...

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Abstract

The invention discloses a method for modeling a complex geology strata sequence. The method comprises the steps of A: finding and recording faults related to each strata position section by performing first class range through the layer strata and fault scattered point data of earthquake explanation; step B: establishing a block-shaped model according to the strata position and faults which are related; step C: obtaining a meshed small-strata result by the small blocks partitioned in the step B; step D: outputting an integral strata sequence modeling result according to the small-strata result obtained in the step C.

Description

technical field [0001] The present invention relates to the field of oil and gas exploration and development, and more specifically, to a method for modeling complex geological structure sequences based on the dual constraints of well logging horizons (layers) and faults. Bit information and fault information. Background technique [0002] Reservoir geological modeling technology is an important reservoir description technology in seismic exploration and development, which plays a very important role in the identification of reservoir spatial distribution area and the characterization of reservoir parameters. Reservoir geological model is the key to reservoir description, and it is the representation of the change and distribution of reservoir characteristics and their heterogeneity in three-dimensional space. Reservoir modeling runs through the entire process of oilfield development. Different development stages have different data bases and geological understandings, and ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
Inventor 王颀洪余刚鲁才陶正喜邹文张洞君黄东山周晶晶钱津
Owner BC P INC CHINA NAT PETROLEUM CORP
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