Method and device for predicting initial annual output of linear decline production well
A technology of annual production and production wells, which is applied in the field of predicting the initial annual production of linearly declining production wells, can solve the problems of initial annual production errors of oil wells, and achieve the effect of eliminating errors
Active Publication Date: 2021-06-25
PETROCHINA CO LTD
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[0010] Through the analysis and comparison of the arithmetic sequence of the stable annual production of oil wells with linear decline production, it is found that there are errors in determining the initial annual production of oil wells using the above regression method
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[0059] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. 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] Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermor...
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The invention provides a method and device for predicting the initial annual output of a linear decline production well. The method comprises the steps that oil production data of a target linear decline production well are obtained; according to the oil production data, the stable annual output of the first year of decline production, the average number of decline production days per month, the initial daily output before decline production of an oil well and the initial daily decline rate are obtained; according to the stable annual output of the first year of decline production, the average number of decline production days per month, the initial daily output before decline production of the oil well and the initial daily decline rate, the initial annual output of the target linear decline production well is obtained, and the initial annual output of the linear decline production well is objectively and accurately evaluated; and the error existing in the initial annual output determined by the generalized Arps decline theory regression is eliminated.
Description
technical field [0001] The invention relates to the technical field of oilfield exploration and development, in particular to a method and device for predicting the initial annual output of a linearly declining production well. Background technique [0002] In the process of oil well development, the analysis of oil well production data is mainly to study the law of production decline after the oil well is put into production, and predict the future production decline trend, so as to guide the development of oil reservoirs and the adjustment of oil well measures. [0003] Specifically, when evaluating the productivity of linearly declining production wells, the initial annual production of the oil well must be obtained before the productivity evaluation can be carried out, and the productivity evaluation is to predict the future productivity of the oil well based on the known production of the oil well, and the productivity prediction is the basic parameter for the final form...
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IPC IPC(8): G06Q10/04G06Q50/02
CPCG06Q10/04G06Q50/02
Inventor 周明旺康志勇闫家宁刘勇倪志发李龙
Owner PETROCHINA CO LTD