Dense oil resource distribution prediction method and prediction device
A technology for distribution prediction and tight oil, applied in prediction, instrumentation, data processing applications, etc., can solve the problems of limited accuracy of prediction results, no consideration of source control factors, multi-parameter numerical simulation method, etc., to achieve easier implementation and accurate estimation. , the effect of short forecast period
Active Publication Date: 2013-10-02
PETROCHINA CO LTD
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[0013] However, none of the above-mentioned distribution prediction methods in the prior art considers source control factors, so the accuracy of the prediction results is limited. In addition, the numerical simulation method requires more parameters, and the implementation period is longer
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[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0067] figure 1 It is a schematic flowchart of a tight oil resource distribution prediction method based on an embodiment of the present invention. The tight oil resource distribution prediction method has the following steps:
[0068] First, the PEBI grid is constructed using the boundary points of the evaluation area and pre-acquired drilling data.
[0069] PEBI grid is the application of limited Voronoi diagram proposed by Heinemann in 1989 in the field of res...
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The invention relates to a dense oil resource distribution prediction method and a prediction device. The prediction method comprises the following steps of: evaluation area boundary points and drilling data are utilized to construct PEBI grids comprising well control grids and non-well control grids; evaluation parameters of the well control grids can be obtained according to previously obtained drilling data, and evaluation parameters of the non-well control grids are obtained through spatial interpolation; Oil discharge quantity of the PEBI grids can be obtained according to the drilling data and hydrocarbon source rock distribution data, and a maximum petroleum fullness coefficient of the PEBI grids can be obtained according to the oil discharge quantity of the PEBI grids; the maximum petroleum fullness coefficient of the PEBI grids which is obtained through computation is utilized to correct the PEBI grid petroleum fullness coefficient of the non-well control grids; and the geological resource quantity and resource abundance of the non-well control grids can be estimated based on the corrected PEBI grid petroleum fullness coefficient. With the dense oil resource distribution prediction method and the prediction device adopted, prediction results of dense oil resource distribution can be more accurate, and the prediction cycle of the dense oil resource distribution is shorter, and exploration and development cost can be reduced.
Description
technical field [0001] The invention relates to the technical field of calculation and distribution prediction of tight oil resources, in particular to a tight oil resource distribution prediction method and a prediction device considering source control. Background technique [0002] Tight oil refers to oil produced in low porosity and low permeability rock reservoirs. Tight oil exists in the organic-rich and extremely low-permeability carbonate rock, argillaceous siltstone and sandstone interlayer systems in the state of adsorption and free, forming self-generated and self-storage, continuous distribution of oil accumulation. [0003] With the development and improvement of horizontal drilling and multi-stage fracturing completion technologies, oil and gas exploration and development are entering a new field. In 2006, the tight oil production of the Bakken Formation in the Elm Coulee oilfield in the Williston Basin broke through a daily production of 7950×10 4 m 3 In 20...
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IPC IPC(8): G06Q10/04G06Q50/02
Inventor 李建忠郭秋麟吴晓智王社教陈宁生谢红兵
Owner PETROCHINA CO LTD