Method and device for digital modeling of continuous wellbore in deep reservoir
A continuous wellbore technology, applied in the field of deep reservoir continuous wellbore digital modeling methods and devices, can solve the problems of many influencing factors of coring, strong uncontrollable results, and difficult coring, so as to improve the reservoir quality. The effect of depicting accuracy, solving the limitation of coring distribution, and expanding the scope of reservoir depiction
Active Publication Date: 2022-05-17
NORTHEAST GASOLINEEUM UNIV
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[0003] Due to the large burial depth of deep-ultra-deep oil and gas reservoirs, coring is difficult, the time period is long, and the cost is extremely high; there are many factors affecting coring, and the result is highly uncontrollable, especially the distribution of coring sections is limited, accounting for only 100% of the entire well. 0.1%, accounting for 10% of the target layer, the representativeness of the core analysis results is quite different from the real situation of the formation
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[0036] The present invention will be further described below in conjunction with accompanying drawing:
[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.
[0038] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B e...
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A continuous wellbore digital modeling method and device for deep reservoirs. The method includes calculating the volume content of formation mineral components according to the gamma energy spectrum collected by ECS; calculating the rock porosity according to the volume content of the formation mineral components; performing full-diameter digital core modeling; calculating the corresponding depth of the core to obtain The rock porosity and the proportion of ore group components are matched with the full-diameter digital core; the continuous wellbore digital modeling of deep reservoirs is carried out according to the rock porosity data of each layer and the matched full-diameter digital core. In this way, through the matching of logging interpretation results and multi-scale digital cores, the cross-scale joint description of logging and CT for continuous wellbore digital modeling of deep reservoirs is realized.
Description
Technical field: [0001] The invention relates to the technical field of oil and gas exploration and development, in particular to a method and device for digital modeling of continuous well bores in deep reservoirs. Background technique: [0002] In recent years, as wells such as Bozi 9 in the Kelasu structural belt of the Tarim Basin have successively achieved high yields, deep-ultra-deep oil and gas have become more realistic exploration breakthrough targets and resource replacement areas. The degree of exploration of deep-ultra-deep oil and gas is relatively low, and the heterogeneity and concealment are stronger. A large number of cores are drilled, and core analysis experiments such as geochemistry, lithology, physical properties, and oil-bearing properties are carried out to analyze reservoir characteristics and influences. factor. [0003] Due to the large burial depth of deep-ultra-deep oil and gas reservoirs, coring is difficult, the time period is long, and the co...
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IPC IPC(8): G01V1/30G01V1/50
CPCG01V1/307G01V1/302G01V1/50
Inventor 许承武李忠卫凯丽杨亮张君龙付晓飞孙先达崔利凯姚东华杨利伟李小龙
Owner NORTHEAST GASOLINEEUM UNIV