云南化工2025，Vol.52Issue(5)：135-138,4.DOI:10.3969/j.issn.1004-275X.2025.05.31
定边油田红柳沟南部地区长6储层有效厚度下限确定研究
Determination of Lower Limit of Effective Thickness of Chang 6 Reservoir in South Hongliugou Area of Dingbian Oilfield
魏笑笑 1许璟 1霍建伟 1贺晓 1吴凡1
作者信息
- 1. 陕西延长石油(集团)有限责任公司研究院,陕西 西安 710065
- 折叠
摘要
Abstract
The study of the lower limit of effective thickness of Chang 6 reservoir in the southern Hongliugou area is of great guiding significance for the calculation of oil reserves in this area and the subsequent exploration and development of oil and gas fields.Through abundant logging,core analysis and test data,oil testing,production testing and production data,the lithology,physical properties,electrical properties and oil-bear-ing properties of the Chang 6 reservoir are analyzed to determine the lower limit of the effective thickness of the Chang 6 reservoir.The results show that the Chang 6 reservoir is a low-porosity and tight reservoir.The lower limit standard for the effective thickness of the Chang 6 oil layer is as follows:the lithological lower limit is fine sandstone;the physical property lower limit is that the porosity is 8.5％and the permeability is 0.26 mD;the oil saturation is≥39.0％,and the oil-bearing level is oil stain and above;the electrical property lower limit is that when 235.6μs/m≥AC≥223.0 μs/m,RILD≥-0.5842·AC+149.66,and when AC ≥235.6μs/m,RILD≥12.5 Ω·m.By clarifying the lower limit of the effective thickness,the effective reservoirs and non-effective reservoirs can be distinguished,so that the reserves can be estimated more ac-curately and reliable reserve data can be provided for energy exploration and development.The research conclusions have a good reference sig-nificance for the study of the reservoirs in the same layer in adjacent areas.关键词
鄂尔多斯盆地/定边油田/红柳沟南部地区/长6储层/有效厚度下限/储量计算Key words
Ordos Basin/Dingbian Oilfield/The Southern Region of Hongliugou/Chang 6 Reservoir/Lower Limit of Effective Thickness/Re-serve Calculation分类
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魏笑笑,许璟,霍建伟,贺晓,吴凡..定边油田红柳沟南部地区长6储层有效厚度下限确定研究[J].云南化工,2025,52(5):135-138,4.
