Oil yield correction method and device for heavy oil thermal recovery relative permeability test, and equipment
A technology of relative permeability and thermal recovery of heavy oil, which is applied in the field of oil production correction of relative permeability test of thermal recovery of heavy oil, can solve problems such as lack of operability, strong artificiality, and influence on the accuracy of thermal recovery of heavy oil
Active Publication Date: 2020-12-18
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
However, these methods have the following problems: the volume of dead oil treated by the direct subtraction method does not conform to the law of dead oil production at the outlet end of the heavy oil phase permeability test, which seriously affects the accuracy of determining the relative permeability of heavy oil thermal recovery
Although the proportional subtraction method to deal with the dead oil volume can reflect the non-piston nature of crude oil output at the export end, it is relatively artificial and lacks operability
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[0060] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification Obviously, the described embodiments are only some of the embodiments in the description, not all of them. Based on one or more embodiments in the description, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the embodiments of the description.
[0061] Dead oil in the embodiments of this specification refers to the crude oil in the pipeline at the core outlet end of the equipment used for the thermal recovery relative permeability test of heavy oil during the relative permeability analysis experiment of heavy oil thermal recovery. In the process of determining the hi...
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The embodiment of the invention discloses an oil yield correction method and device for heavy oil thermal recovery relative permeability test, and equipment. According to the method, the dead oil output rule of a rock core outlet end pipeline of current heavy oil thermal recovery relative permeability test equipment can be simulated and analyzed in advance through the simulation equipment, and onthe basis, oil yield data of a current heavy oil thermal recovery relative permeability test are corrected to reduce the influence of the dead oil volume in the outlet end pipeline on a test result, improve the accuracy of the heavy oil thermal recovery relative permeability test result and further improve the accuracy and reliability of the industrial heavy oil thermal recovery production prediction result.
Description
technical field [0001] This specification relates to the technical field of relative permeability testing of heavy oil thermal recovery, and in particular, relates to an oil production correction method, device and equipment for testing relative permeability of heavy oil thermal recovery. Background technique [0002] Thermal recovery is an important development method of heavy oil reservoirs, and relative permeability is an important basic data for dynamic calculation of thermal recovery development of heavy oil reservoirs. In the process of determining the relative permeability of heavy oil thermal recovery, in order to maintain the required saturated steam temperature, it is usually necessary to add a back pressure device to the equipment used in the test of relative permeability of heavy oil thermal recovery, and at the same time, in order to accurately measure the fluid production at the outlet A cooling device should be added, which will easily cause the dead oil volum...
Claims
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IPC IPC(8): E21B43/24E21B47/00G06Q50/02
CPCE21B43/24E21B47/00G06Q50/02
Inventor 高旺来
Owner CHINA UNIV OF PETROLEUM (BEIJING)