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Seismic sedimentology reservoir prediction system

A technology of reservoir prediction and sedimentology, applied in the direction of seismic signal processing, etc., can solve problems such as difficulty in restoring paleogeomorphology, time windows of seismic attributes are easy to pass through, thin layers are difficult to identify, etc., and achieve good application effects and promotion prospects

Inactive Publication Date: 2012-07-04
中国石油化工股份有限公司胜利油田分公司勘探开发研究院西部分院 +1
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems in the prior art that using earthquakes to identify reservoirs, describing thin layers is difficult to identify, seismic attribute time windows are easy to pass through time, and paleogeomorphology recovery is difficult, and to provide a method that is easy to identify thin layers and improve seismic performance. Attribute time window isochronism, returning to the study of reservoirs under paleogeomorphological characteristics, it is easier to analyze the temporal and spatial depositional evolution and spatial distribution characteristics of sedimentary bodies

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Embodiment 1

[0017] A seismic sedimentology reservoir prediction system, comprising a data acquisition device 1, a data quality analysis device 2, a seismic geomorphology analysis device 3, a rock geophysics analysis device 4, a reservoir prediction device 5, and a reservoir output device 6 ; Wherein the data acquisition device 1 is mainly to obtain various data required by the seismic sedimentology reservoir prediction system; the data quality analysis device 2 is mainly to analyze the quality of the obtained data, and evaluate whether the feasibility of the data can reach the next step The requirements of the process; the seismic geomorphology analysis device 3 mainly performs seismic geomorphology analysis on the input seismic data by constructing seismic isochronous slice imaging; the rock geophysics analysis device 4 mainly analyzes the quality of the input, The seismic geological data that meet the requirements are analyzed and merged, and the seismic response characteristics of the g...

Embodiment 2

[0020] Seismic geomorphology analysis device 3 among the present invention comprises structure interpretation device 31 and sequence stratigraphy division device 32, seismic isochronous slice device 33 and seismic facies analysis device 34 again; The automatic tracking and interpretation of the position, the sequence stratigraphy division device 32 is combined with the sequence division of the drilling according to the interpretation results, and the sequence stratigraphy is divided in the whole three-dimensional space according to the earthquake, and the seismic isochronous slice device 33 is based on the layer According to the results of the sequence division, different conversion modes are selected according to the actual depositional model to generate isochronous seismic slices. The seismic phase analysis device 34 is to carry out seismic phase analysis on the seismic isochronous slices generated by the seismic isochronous slice device 33 to generate all slices. Seismic fac...

Embodiment 3

[0022] Reservoir prediction device 5 among the present invention comprises double-domain interpretation and research device 51 and deposition and evolution device 52, favorable reservoir prediction device 53 again; The established seismic-geological relationship converts the seismic facies obtained by the seismic facies analysis device 34 into sedimentary facies, and separately analyzes, interprets and studies the sedimentary facies in the conventional time domain and the chronostratigraphic cycle domain; the sedimentation and evolution device 52 is mainly Analyze and study the depositional environment of the sedimentary facies obtained through the dual-domain interpretation and research device 51, and analyze the depositional evolution, and establish the stages of the depositional evolution of the sedimentary facies; the favorable reservoir prediction device 53 mainly uses the 52 The acquired data identifies the distribution of favorable reservoirs according to the criteria of...

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Abstract

The invention relates to a seismic sedimentology reservoir prediction system which comprises a data acquisition device (1), a data quality analysis device (2), a seismic geomorphology analysis device (3), a seismic petrology analysis device (4), a reservoir prediction device (5) and a reservoir output device (6), wherein the data acquisition device (1) is connected with the data quality analysis device (2); the data quality analysis device (2) is respectively connected with the seismic geomorphology analysis device (3) and the seismic petrology analysis device (4); the seismic geomorphology analysis device (3) and the seismic petrology analysis device (4) are simultaneously connected with the reservoir prediction device (5); and the reservoir prediction device (5) is connected with the reservoir output device (6). The seismic sedimentology reservoir prediction system effectively solves the problems of diachronous complicated sedimentary stratum and isochronous stratal slicing in manners of driving data and automatically tracking seismic lineups. The seismic sedimentology reservoir prediction system has the beneficial effects that based on seismic geomorphology plane identification, a seismic facies is calibrated through the seismic petrology research; and through chronostratigraphic cyclic domain slicing, the palaeosedimentary environment is recovered, and the reservoir evolution is developed in two domains to describe the distribution of a favorable reservoir. The system has good application effect and promotion prospect.

Description

technical field [0001] The invention relates to the field of petroleum exploration seismic interpretation and comprehensive research, in particular to reservoir prediction equipment. Background technique [0002] In the current seismic interpretation and comprehensive research of petroleum exploration, identifying and describing the distribution of favorable reservoirs is the focus and difficulty of exploration research. In conventional reservoir identification and description, the relationship between logging geological information and earthquakes is generally established through well-seismic calibration, then seismic axis interpretation is performed, and then seismic inversion is carried out to obtain wave impedance information. , identify the sand body, and then combine the seismic attributes to carry out the identification and description of the reservoir. In the conventional reservoir identification description, due to the restriction of the seismic resolution, the sei...

Claims

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Application Information

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IPC IPC(8): G01V1/30
Inventor 林会喜宋传春王树华乔玉雷张曰静
Owner 中国石油化工股份有限公司胜利油田分公司勘探开发研究院西部分院
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