Method and device for determining reservoir stimulation volume
A technology for reservoir reconstruction and volume, which is applied in volume measurement instruments/methods, measuring devices, liquid/fluid solid measurement, etc., and can solve the problems of large volume error and low precision of reservoir reconstruction
Active Publication Date: 2019-12-10
PETROCHINA CO LTD
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[0005] The embodiment of the present application provides a method and device for determining the volume of reservoir stimulation to solve the technical problems of large error and low precision in the determined volume of reservoir stimulation existing in the existing method, so as to achieve precise and accurate determination of the reservoir Technical Effects of Retrofit Volumes
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[0056] 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.
[0057] Considering that in order to determine the volume of reservoir stimulation in existing methods, the pressure recovery well testing technique is often used to estimate the volume of reservoir stimulation. However, the implementation of the above method usually needs to be based on the following two assumptions: assuming that the fra...
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Abstract
The embodiment of the invention provides a reservoir reform volume determination method and device. The method comprises the steps that reservoir parameters and fluid parameters of the area where a target well is located are obtained; a rule based on gaseous material balance in a reservoir is built according to the reservoir parameters and the fluid parameters; production testing is conducted on the target well, and the volume of cumulative gas production and a first pressure are obtained; the reservoir reform volume is determined according to the volume of cumulative gas production and the first pressure and the rule. Due to the fact that the rule based on the gaseous material balance in the reservoir is built according to the reservoir parameters and the fluid parameters, the specific reservoir reform volume is determined by means of the rule, and then the technical problem that in an existing method, the determined reservoir deform volume is big in error and low in precision is solved; the technical effect of accurately and precisely determining the reservoir reform volume is achieved.
Description
technical field [0001] The present application relates to the technical field of oil and gas development, in particular to a method and device for determining the volume of reservoir stimulation. Background technique [0002] When developing unconventional oil and gas resources such as shale gas, due to the relatively low porosity and permeability of the reservoir where such oil and gas resources are located, it is usually necessary to perform fracturing first to form a complex fracture network to increase Reservoir stimulation volume (SRV, StimulatedReservoirVolume), which can effectively improve oil and gas recovery efficiency. Generally, the larger the volume of reservoir stimulation, the higher the corresponding oil and gas recovery efficiency. Therefore, the volume of reservoir stimulation plays an important role in evaluating the degree of reservoir stimulation of shale gas and other unconventional oil and gas resources, and evaluating the gas storage / oil volume of su...
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IPC IPC(8): G01F17/00G01N33/24
CPCG01F17/00G01N33/24
Inventor 严玉忠修乃岭王臻管保山王永辉付海峰梁天成骆禹
Owner PETROCHINA CO LTD