Prepad fluid energized fracturing scheme generation method and device
A prefluid and fracturing technology, applied in the field of hydraulic fracturing of oil wells, can solve the problems of narrow application range, large limitations, and inability to fundamentally increase fracturing oil production, and achieve a wide range of applications and improve fracturing The effect of oil production
Active Publication Date: 2018-04-20
能新科能源技术股份有限公司
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However, this solution has very large limitations and a narrow application range, and cannot fundamentally improve the fracturing oil production of those oil wells with serious formation energy deficits.
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[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention provides a prepad fluid energized fracturing scheme generation method and device. The method comprises the steps that oil reservoir physical data of a target oil well is obtained, and acorresponding oil reservoir model is built up; simulation is conducted on a stratum pressure recovery condition of the target oil well under different injection rate of energized liquid based on the oil reservoir model, and a stratum pressure recovery model is obtained; simulation is conducted on an oil production condition when the target oil well is fractured under different injection rate of the energized fluid based on the stratum pressure recovery model, and a corresponding fracturing simulating model and a corresponding relationship between the oil production rate and the production timeare obtained; and the injection rate of the energized fluid enabling the target oil well to reach a highest oil production efficiency or a highest economic benefit in a preset production time is selected according to the corresponding relationship, and a corresponding fracturing scheme is generated based on the fracturing simulating model of the injection rate of the energized fluid. The method is wide in application range, the appropriate prepad fluid energized fracturing scheme can be generated aiming at the target oil well, so that the fracturing oil production rate of a corresponding oilwell is improved.
Description
technical field [0001] The invention relates to the technical field of hydraulic fracturing of oil wells, in particular to a method and device for generating a pre-fluid energized fracturing scheme. Background technique [0002] With the widespread use of oil and gas, oil well hydraulic fracturing technology has been developed rapidly, and has gradually become an important technical measure to improve the oil production of low-permeability oil and gas reservoirs or old wells in the process of oil and gas reservoir development. Hydraulic fracturing transmits the high pressure formed by the surface pump truck to the formation through the fracturing fluid, ruptures the reservoir and forms artificial fractures, thereby using artificial fractures to form channels for oil and gas flow in the reservoir, increasing the oil and gas drainage area and sweeping range, Increased oil and gas production where fracturing fluids carry proppants to support fractures. But as far as the hydrau...
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IPC IPC(8): E21B43/26E21B43/267G06F17/50
CPCE21B43/26E21B43/267G06F30/20
Inventor 严向阳徐永辉王腾飞刘胜马世忠何双喜于银华范友泉
Owner 能新科能源技术股份有限公司