Water flooding method and device
A flooding and index parameter technology, applied in the fields of fluid extraction, earthwork drilling, measurement, etc., can solve the problem of low accuracy in predicting flooding risk, and achieve the effect of comprehensive and quantitative determination.
Inactive Publication Date: 2018-03-20
PETROCHINA CO LTD
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[0005] The embodiment of the present application provides a water injection development method and device to solve the technical problem of low accuracy in predicting flood risk in existing methods
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[0059] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0060] Considering the existing methods, in actual implementation, there is often a lack of more comprehensive and objective analysis and research, and most of them subjectively consider the effect of a certain influencing factor, and carry out the water flooding situation of the well group according to a single characteristic parameter of...
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The embodiment of the invention provides a water flooding method and device. The method comprises the steps of obtaining parameter values of multiple index parameters of each of multiple well groups in a target region, wherein index parameters include dynamic index parameters and static index parameters of the well groups; according to preset rules and the importance degree of each index parameter, determining the weight of each index parameter; according to the weight of each index parameter and the parameter values of the index parameters of each well group, determining a water logging riskindex parameter of each well group; according to the water logging risk index parameter of each well group, performing water flooding on the target region. Due to the fact that the method and device consider the specific influence of various index parameters, the weights of the index parameters are determined according to the difference of the water logging influence importance degree of differentindex parameters, and then the water flooding risk index parameters with the good prediction effect are determined so as to guide water flooding. The technical problem that in the prior art, the water flooding risk prediction accuracy is low is solved.
Description
technical field [0001] The present application relates to the technical field of oil field development, in particular to a water injection development method and device. Background technique [0002] In the process of specific water injection development of oilfields, sometimes water flooding occurs, which affects oil and gas production. Therefore, in water injection development, it is often necessary to predict whether water flooding will occur in each well group, and use the prediction results as construction references to carry out water injection development of oil and gas fields. [0003] At present, most of the predictions of water flooding of specific well groups focus on the prediction and research of water breakthrough time. In addition, there is often a lack of comprehensive and objective analysis in the actual implementation, subjectively considering the role of a certain influencing factor, and predicting the water flooding of the well group according to a singl...
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IPC IPC(8): E21B43/20E21B47/00
CPCE21B43/20E21B47/00
Inventor 谭柱李保柱李勇王代刚
Owner PETROCHINA CO LTD