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Shallow lake basin reservoir prediction method and device based on micro-ancient landform recovery

A technology of paleogeomorphology recovery and paleogeomorphology, applied in the field of geological exploration, can solve problems such as inaccurate prediction results, and achieve the effect of accurate reservoir distribution and development degree

Active Publication Date: 2020-11-24
PETROCHINA CO LTD
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Problems solved by technology

[0006] The purpose of this application is to provide a shallow lake basin reservoir prediction method and device, terminal equipment, and storage medium based on micro-paleogeomorphology recovery, so as to solve the existing prediction problems in shallow lake basins that only use seismic data The problem with inaccurate results

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  • Shallow lake basin reservoir prediction method and device based on micro-ancient landform recovery
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  • Shallow lake basin reservoir prediction method and device based on micro-ancient landform recovery

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[0071] In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described The embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of this application.

[0072] Aiming at the problems existing in the existing research on shallow water deltas in shallow lake basins, in this case, a reservoir prediction method for shallow lake basins is proposed. Basis, under the guidance of distributary channel and basin filling characteristics, the prediction of reservoir distribution charact...

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Abstract

The invention provides a shallow lake basin reservoir prediction method and device based on micro-ancient landform recovery, and the method comprises the steps: determining the position of a shuntingriver through the research of the micro-ancient landform recovery and earthquake facies of a target stratum series shallow lake basin; according to the deposition compensation principle, performing micro-ancient landform recovery, and determining the distribution mode of the diversion riverway; determining reservoir distribution characteristics in the shallow water lake basin of the target stratumsystem according to the distribution mode of the diversion riverway and the recovery of the micro-ancient landform; determining wave impedance attributes capable of quantitatively characterizing reservoir distribution characteristics; performing wave impedance seismic waveform indication inversion according to the determined wave impedance attribute; and slicing the inversion data volume to obtain a plurality of stratum slices so as to determine a deposition system and reservoir change of a target stratum series shallow water lake basin. By means of the scheme, the problem that the predictionresult is inaccurate when the shallow lake basin is predicted only through seismic data is solved, and the technical effect of accurately determining the reservoir distribution and development degreeof the shallow lake basin is achieved.

Description

technical field [0001] The present application belongs to the technical field of geological exploration, and in particular relates to a method and device for predicting reservoirs in shallow lake basins based on micro-paleo landform restoration. Background technique [0002] The shallow water delta in the shallow lake basin is its main sedimentary system. It has been confirmed by exploration that this type of shallow water delta deposition is widely developed in the Mesozoic and Cenozoic strata, with a large number of oil and gas resources, and has broad exploration prospects. And as the discovery rate of structural oil and gas reservoirs is getting lower and lower, the exploration of lithologic oil and gas reservoirs or low-permeability-ultra-low-permeability reservoirs becomes more and more important. However, reservoirs formed in shallow water depositional environments are difficult to identify using seismic data, especially in squeezed basins, which are more difficult to...

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Application Information

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IPC IPC(8): G01V1/28G01V1/30
CPCG01V1/282G01V1/30
Inventor 黄军平向倪娇杨占龙薛云军
Owner PETROCHINA CO LTD
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