Shale oil productivity prediction method and system, medium, equipment and terminal
A prediction method and oil production technology, applied in the field of medium, equipment and terminal, system, and shale oil production capacity prediction method, can solve the problems of difficulty in judging the degree of importance, numerous parameters, and huge amount of calculation, so as to achieve rapid prediction of production capacity, The effect of eliminating possible errors
Pending Publication Date: 2022-05-20
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology
It has a huge amount of calculation and many parameters, so it is difficult to meet the requirements of quick and simple on-site
Although the traditional formula fitting method meets the requirements of field application, there are many factors affecting shale productivity, and it is difficult to judge the importance of these influencing factors
And the statistical data are numerous and complicated, it is difficult to extract useful information
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Embodiment 1
[0130] The invention considers the influence of multiple factors such as geology, oil reservoirs and engineering on the shale oil production capacity, and uses the improved analytic hierarchy process and multiple regression analysis to establish a reliable shale oil production capacity prediction formula.
[0131] Aiming at the problem that the regularity of statistical data is not obvious, the present invention proposes a weight analysis method for the main controlling factors of production capacity based on the improved analytic hierarchy process, which can quantitatively clarify the main controlling factors of production capacity change under multi-factor conditions such as geology, reservoir, and technology, and then According to the calculated weights, the factors with larger weights were selected to perform multiple regression with the production, and a more accurate shale oil production capacity formula was fitted.
[0132] In the present invention, the weight analysis i...
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The invention belongs to the technical field of shale oil development, and discloses a shale oil productivity prediction method and system, a medium, equipment and a terminal.The shale oil productivity prediction method comprises the steps that an evaluation index system is determined according to the evaluation purpose, and a yield influence factor database is established; dividing factors influencing the yield into four level values according to an existing development scheme database; constructing an average effect database of the yield influence factors according to the yield influence factor database; constructing a yield influence factor range database according to the yield influence factor average effect database; constructing a comparison matrix among different factors according to the yield influence factor range database; influence factor weights are calculated, and consistency check is carried out; and constructing a multiple regression fitting yield formula. According to the method, the weights of the influence factors are judged through quantitative calculation, possible errors caused by manual judgment are eliminated, multiple regression is carried out according to several influence factors with large weights and productivity, and a reasonable and accurate productivity formula is fitted.
Description
technical field [0001] The invention belongs to the technical field of shale oil development, and in particular relates to a shale oil productivity prediction method, system, medium, equipment and terminal. Background technique [0002] At present, following the major breakthroughs in unconventional oil and gas such as tight sandstone oil, tight carbonate rock oil, and shale condensate oil in North America, my country's shale reservoirs in basins such as Ordos, Junggar, Bohai Bay, and Sichuan have also With major discoveries, shale oil has become a new bright spot in unconventional oil and gas in the world. The rapid development of shale oil in the United States has reduced its dependence on foreign crude oil from 60% in 2005 to 45% in 2011. In 2010, the shale oil resource evaluation results showed that my country's oil shale geological reserves were 1,160.2 billion tons, and the recoverable shale oil resources were 16 billion tons. Considering the profound impact of the ra...
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IPC IPC(8): G06F30/20G06F119/02
CPCG06F30/20G06F2119/02
Inventor 张琪吴乐丁浪
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)