低渗透砂岩孔隙结构与采油产能关系——以东营凹陷南坡F154区块为例

doi:10.12108/yxyqc.20220111

岩性油气藏 ›› 2022, Vol. 34 ›› Issue (1): 106–117.doi: 10.12108/yxyqc.20220111

低渗透砂岩孔隙结构与采油产能关系——以东营凹陷南坡F154区块为例

何贤^1,2, 闫建平^1,2,3, 王敏⁴, 王军⁴, 耿斌⁴, 李志鹏⁴, 钟光海⁵, 张瑞湘²

1. 油气藏地质及开发工程国家重点实验室·西南石油大学, 成都 610500;
2. 西南石油大学地球科学与技术学院, 成都 610500;
3. 中国地质大学构造与油气资源教育部重点实验室, 武汉 430074;
4. 中国石化胜利油田分公司勘探开发研究院, 山东东营 257015;
5. 中国石油西南油气田分公司页岩气研究院, 成都 610500

收稿日期:2021-02-01 修回日期:2021-05-31 出版日期:2022-01-01 发布日期:2022-01-21
第一作者:何贤(2001-),男,西南石油大学在读硕士研究生,研究方向为测井地质学。地址:(610500)四川省成都市新都区西南石油大学地球科学与技术学院。Email:1561537893@qq.com
通信作者: 闫建平（1980—），男，博士，教授，主要从事测井地质学及非常规储层测井评价方面的教学与研究工作。Email：yanjp_tj@163.com。
基金资助:
中国石油-西南石油大学创新联合体科技合作项目“川南深层与昭通中浅层海相页岩气规模效益开发关键技术研究”（编号：2020-CX020000），西南石油大学国家级创新训练项目“湖相页岩油夹层、裂缝测井解释方法及应用”（编号：S202010615025）和胜利油田科技攻关项目“页岩油地质储量计算关键参数研究”（编号：YKK2013）联合资助

Relationship between pore structure and oil production capacity of low permeability sandstone: A case study of block F154 in south slope of Dongying Sag

HE Xian^1,2, YAN Jianping^1,2,3, WANG Min⁴, WANG Jun⁴, GENG Bin⁴, LI Zhipeng⁴, ZHONG Guanghai⁵, ZHANG Ruixiang²

1. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;
2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
3. Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China;
4. Research Institute of Exploration and Development, Sinopec Shengli Oilfield Company, Dongying 257015, Shandong, China;
5. Research Institute of Shale Gas, PetroChina Southwest Oil & Gas Field Company, Chengdu 610500, China

Received:2021-02-01 Revised:2021-05-31 Online:2022-01-01 Published:2022-01-21

摘要/Abstract

摘要： 东营凹陷南坡F154区块沙河街组沙三段（Es3）砂岩储层渗透率低，孔隙结构复杂，产能预测难度大。根据岩心覆压物性测试、铸体薄片、恒速压汞、高压压汞及X射线衍射等资料，分析孔隙结构特征及控制因素；基于生产数据求得表征产能的参数采油强度；分析孔隙结构参数与采油强度的关系，对孔隙结构进行分类，通过孔隙结构类型测井识别，将采油强度刻度到测井曲线，建立了基于测井敏感变量的多参数采油强度预测模型，并利用实际井的生产数据进行验证，结果表明：大喉道数量决定了渗透率的高低；采油强度值越大，孔隙结构越好；采油强度较大的孔隙结构类型层段，通常自然伽马低，声波时差、深电阻率、深浅电阻率差值高。实际采油强度与预测采油强度相关系数大于0.9，计算结果符合生产预测的要求。该研究成果为复杂孔隙结构的低渗透砂岩储层产能预测提供了依据。

关键词: 低渗透砂岩, 孔隙结构, 产能预测, 采油强度, 测井敏感曲线, 沙三段, 东营凹陷

Abstract: The sandstone reservoirs of Shahejie Formation(Es₃) in block F154 in the south slope of Dongying Sag are characterized by low permeability, complex pore structure and difficulty in productivity prediction. The pore structure characteristics and controlling factors were analyzed by using the data of core physical property test with overburden pressure,casting thin section,constant-rate mercury injection,high pressure mercury injection and X-ray diffraction. Based on the production data,the parameter of oil production intensity was obtained to represent the productivity. Relationships between pore structure parameters and oil production intensity were analyzed,and the pore structures were classified. The oil production intensity was calibrated to the logging curve through the identification of pore structure types. A multi-parameter oil production intensity prediction model was established based on sensitive logging variables,and verified with the data of actual wells. The results show that the number of large throats determines the permeability. The larger the oil production intensity,the better the pore structure. The intervals of pore structure with high oil production intensity usually have low natural gamma, high acoustic time difference,deep resistivity and deep and shallow resistivity difference. The correlation coefficient between the actual and the predicted oil production intensity is greater than 0.9,and the calculated results meet the requirements of production prediction. The research results provide a basis for the productivity prediction of low permeability sandstone reservoirs with complex pore structure.

Key words: low permeability sandstone, pore structure, productivity prediction, oil production intensity, sensi tive logging curve, Shahejie Formation, Dongying Sag

中图分类号:

P631

何贤, 闫建平, 王敏, 王军, 耿斌, 李志鹏, 钟光海, 张瑞湘. 低渗透砂岩孔隙结构与采油产能关系——以东营凹陷南坡F154区块为例[J]. 岩性油气藏, 2022, 34(1): 106–117.

HE Xian, YAN Jianping, WANG Min, WANG Jun, GENG Bin, LI Zhipeng, ZHONG Guanghai, ZHANG Ruixiang. Relationship between pore structure and oil production capacity of low permeability sandstone: A case study of block F154 in south slope of Dongying Sag[J]. Lithologic Reservoirs, 2022, 34(1): 106–117.

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低渗透砂岩孔隙结构与采油产能关系——以东营凹陷南坡F154区块为例

Relationship between pore structure and oil production capacity of low permeability sandstone: A case study of block F154 in south slope of Dongying Sag

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