Multi-control reservoir prediction method used for improving prediction accuracy of complex clastic rock reservoir

A technology for reservoir prediction and clastic rock, applied in the direction of seismic signal processing, etc., can solve the problems of strong multi-solution, difficult oil (gas) prediction, strong multi-resolution seismic reservoir prediction, etc., to improve accuracy, promote exploration and development, and improve push effect

CN103675906AActive Publication Date: 2014-03-26CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-03-26

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Abstract

The invention provides a multi-control reservoir prediction method used for improving the prediction accuracy of a complex clastic rock reservoir, and belongs to the field of geophysical reservoir prediction. The method comprises the steps that (1) according to a geological research result, reservoir forming combination modes are acquired, and then constraint factors are acquired according to the reservoir forming combination modes, wherein the reservoir forming combination modes comprise a lower-growth upper-storage type combination mode and an upper-growth lower-storage type combination mode, and the constraint factors comprise a well point constraint factor Fw and a space constraint factor Fs; and (2) reservoir prediction under the control of the space constraint factor is carried out. According to the step (2), constraint is carried out on a seismic attribute result by using the space constraint factor Fs acquired by the step (1), so as to acquire a rich gas reservoir prediction result under multi-control constraint; specifically, the formula that Ag is equal to A*Fs is used to carry out prediction; Ag is the rich gas reservoir prediction result under the multi-control constraint; and A is a seismic attribute value. According to the invention, the accuracy of reservoir prediction is greatly improved.
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Description

technical field

[0001] The invention belongs to the field of geophysical reservoir prediction, in particular to a multi-control reservoir prediction method for improving the prediction accuracy of complex clastic rock reservoirs. Background technique

[0002] Seismic reservoir prediction is a new concept proposed in the 1980s to meet the new needs of oil and gas field exploration and development. Its technologies include seismic lithology prediction technology, physical property prediction technology, fluid detection technology and comprehensive evaluation technology; There are differences and phases in solving problems in different exploration and development stages, and there are great differences in the ideas, methods, and techniques of reservoir prediction; thus forming many branch disciplines, such as seismic stratigraphy, seismic sedimentology, and seismic reservoir geology Wait. Specific to method technology, it mainly includes attribute technology and inversion tech...

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0036] The multi-controlling reservoir prediction is proposed to solve the multi-solution problem of the seismic reservoir prediction results. The key to realizing the reservoir under the constraints of the main controlling factors of accumulation is how to quantitatively determine the role and effect of different controlling factors on hydrocarbon accumulation. How to constrain the reservoir-forming control factors to the seismic reservoir prediction results, so as to achieve the purpose of improving the accuracy of reservoir prediction; to realize the reservoir prediction under the control of accumulation, the key is how to combine the control factors of accumulation with the seismic reservoir prediction results, for This invention proposes a brand-new method of controlling seismic reservoir prediction results by extracting seismic reservoir prediction constraint fac...