Method and device for establishing shale wetting angle prediction model, equipment, and medium
A technology for predicting models and wetting angles, applied to measuring devices, instruments, surface/boundary effects, etc., can solve problems such as inaccurate measurement results, many human factors, and inability to measure the wetting angle of shale
Active Publication Date: 2022-02-25
CHINA UNIV OF PETROLEUM (BEIJING)
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[0004] In view of the above problems in the prior art, the purpose of this paper is to provide a method, device, equipment and medium for establishing a shale wetting angle prediction model to solve the problem that traditional measurement methods in the prior art cannot measure shale from a microscopic perspective. Wetting angle, and the measurement process is more affected by human factors, the problem of inaccurate measurement results
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[0077] The following will clearly and completely describe the technical solutions in the embodiments herein in conjunction with the accompanying drawings in the embodiments herein. Obviously, the described embodiments are only some of the embodiments herein, not all of them. Based on the embodiments herein, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the scope of protection herein.
[0078] It should be noted that the terms "first" and "second" in the description and claims herein and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments herein described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations ...
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The invention provides a method and a device for establishing a shale wetting angle prediction model, equipment, and a medium. A plurality of rough samples with different morphological characteristics in a plurality of shale with different lithology distributions are subjected to wetting test by using experimental factors calibrated by a micro-injection method, the experimental environment is adjusted in the test process, and a mapping relation between the wetting angles of the rough samples and the experimental environment is determined; according to the lithology distribution of the rough samples, the morphological characteristics of the rough samples and the mapping relation between the wetting angles of the rough samples and the experimental environment, a wetting angle prediction model is created. According to the invention, the wetting test of the rough samples is carried out through the experimental factors calibrated by the micro-injection method, the mapping relation between the wetting angles and the experimental environment, which reduces the influence of human factors, can be obtained, and the wetting angle prediction model is created based on the mapping relation between the wetting angles and the experimental environment, which reduces the influence of human factors; without a force measurement method and the micro-injection method, the accurate wetting angle can be quickly predicted through the wetting angle prediction model.
Description
technical field [0001] The invention relates to the technical field of shale wettability characterization and can be used in the field of petroleum exploration, in particular to a method, device, equipment and medium for establishing a shale wetting angle prediction model. Background technique [0002] In oil and gas reservoirs, wettability is an important property that characterizes the interaction between rock, oil, water and gas, and is an important parameter that determines the remaining oil recovery and the ultimate oil recovery rate of oil. It has been proved in engineering experiments that the wetting angle of shale There is a corresponding relationship with its wettability. [0003] Due to the multi-level micro-scale structure of shale and the strong heterogeneity of surface chemical properties, it is difficult to characterize the macroscopic wettability measurement method. Traditional wettability angle measurement methods, such as the Amott method, the US Bureau of ...
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CPCG01N13/00
Inventor 贾趵鲜成钢申颖浩李曹雄
Owner CHINA UNIV OF PETROLEUM (BEIJING)