Evaluations of oil and gas lateral migration across faults: A case study of Shigezhuang nose structure of Wen'an slope in Baxian sag, Jizhong depression, Bohai Bay Basin, East China
| Autor: | Zhipeng Huo, Yanfang Lyu, Chao Wang, Guang Fu, Liu Junqiao, Quan Wang, Yougong Wang, Yonghe Sun |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Energy Engineering and Power Technology
02 engineering and technology Fault (geology) Structural basin 010502 geochemistry & geophysics 01 natural sciences 020401 chemical engineering Geochemistry and Petrology Evaluation methods 0204 chemical engineering Petrology lcsh:Petroleum refining. Petroleum products 0105 earth and related environmental sciences Bohai bay geography geography.geographical_feature_category business.industry Fossil fuel Geology Geotechnical Engineering and Engineering Geology Shale Gouge Ratio lcsh:TP690-692.5 Economic Geology business Paleogene |
| Zdroj: | Petroleum Exploration and Development, Vol 44, Iss 6, Pp 932-940 (2017) |
| ISSN: | 1876-3804 |
| Popis: | To study the possibility and location of lateral migration of oil and gas across faults, a quantitative evaluation method for lateral migration of oil and gas across faults was established using the Shuangjing Knipe graphic method to identify the juxtaposition site and juxtaposition patterns of sand and sand in the upper and lower walls of the reverse faults and the consequent faults, combined with the oil and gas limit method of fault lateral seal in the test oil area. The quantitative evaluation method was applied to the first and two members of the Paleogene Shahejie strata (referred to as Es1 and Es2) of Shigezhuang nose structure of Wen'an slope in Baxian sag, Jizhong depression, Bohai Bay Basin, to determine the juxtaposition site of sand and sand in the upper and lower walls of the fault, and the shale gouge ratio (SGR) lower values are 26% and 29% respectively in the strata Es1 and Es2. Thus, the location of lateral migration of oil and gas across faults was determined. Based on the oil and gas distribution characteristics of the strata Es1 and Es2, and variation trend of nitrogen compounds in 4 wells in the strata Es1, the results were consistent with the quantitative evaluation of the location of lateral migration of oil and gas across faults, the feasibility of the evaluation method was preliminarily verified. Key words: Bohai Bay Basin, Jizhong depression, Wen'an slope, hydrocarbon lateral migration, shale gouge ratio, fault lateral seal, oil and gas seal limit, Knipe diagram method |
| Databáze: | OpenAIRE |
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