徐国庆,卢刚臣,吴振东,李廷辉,王文庆,王仁康
XU Guoqing,LU Gangchen,WU Zhendong,LI Tinghui,WANG Wenqing,WANG Renkang

• 1:中国石油东方地球物理公司研究院大港分院

摘要(Abstract)：

实际勘探中发现油源断层附近某些有利圈闭不产油，需要评判断层相关属性对油气成藏的影响。从断裂带内部结构出发，结合油气输导体系相关理论，分析影响成藏的断层要素，并建立了油源断层成藏潜力影响评价方法。结果表明：油源断层的断距、断层活动速度、距生油层距离、断面形态、断层两侧岩性、圈闭断层相对关系是影响成藏的断层要素，其中断层活动速度、断面形态要素用于评价断裂活动性，圈闭断层相对关系、断层两侧岩性、断距、距生油层距离要素用于评价油气的侧向、垂向运移能力；孔西断层各层断距、断层活动速度、距生油层距离等成藏影响要素表现出明显的分段性，断面的曲率和两侧岩性也随深度和位置的变化而不同，从而对成藏有不同影响；将断层要素按不同权重对油源断层于附近圈闭的影响进行评价，综合评价3.5分以上为有利产油圈闭，实际应用中计算结果与实钻结果吻合度达到87.5%。研究成果可为断层对附近圈闭成藏潜力影响提供一种有效的评价体系，从而有效圈定有利成藏区带。
Actual exploration shows that some favorable traps near source faults do not produce oil, so evaluation on influence of faults-related attributes on oil and gas accumulation is required. Starting from internal structure of fault zones and combining relevant theories of oil and gas migration system, fault factors affecting accumulation are analyzed, and evaluation method for influence of source faults on accumulation potential is established. The results show that fault throw, fault activity rate, distance to source rock, fault plane geometry, lithology on both sides of the fault and relative relationship between trap and fault are fault factors influencing accumulation. Among these factors, fault activity rate and fault plane geometry are used to evaluate fault activity, while relative relationship between trap and fault, lithology on both sides of the fault, fault throw and distance to source rock are used to evaluate lateral and vertical migration capacity of oil and gas. Factors affecting accumulation such as fault throw, fault activity rate and distance to source rock of various layers in Kongxi Fault show significant segmentation, with fault plane curvature and lithology on both sides varying with depth and location, therefore having different impacts on accumulation. By evaluating influence of source faults on nearby traps based on different weights of fault factors, traps with comprehensive evaluation score of >3.5 are considered to be favorable oil producing traps, and application shows consistency of 87.5% between calculation results and drilling results. The research provides an effective system for evaluating influence of faults nearby traps on accumulation potential, thereby effectively delineating favorable accumulation areas.

关键词(KeyWords)： 油源断层;断层;断面;油气运移;输导体系;成藏模式;成藏潜力;黄骅坳陷
source fault;fault;fault plane;oil and gas migration;transport system;accumulation pattern;accumulation potential;Huanghua Depression

Abstract:

Keywords:

基金项目(Foundation): 中国石油大港油田公司一体化项目“大港探区重点勘探领域关键技术研究”（DGYT-2023-JS-845）

作者(Author): 徐国庆,卢刚臣,吴振东,李廷辉,王文庆,王仁康
XU Guoqing,LU Gangchen,WU Zhendong,LI Tinghui,WANG Wenqing,WANG Renkang

DOI: 10.19597/J.ISSN.1000-3754.202310032

参考文献(References)：

• [1]张卫海，查明，曲江秀.油气输导体系的类型及配置关系[J].新疆石油地质，2003,24(2):118-120.ZHANG Weihai,ZHA Ming,QU Jiangxiu. The type and configuration of petroleum transportation system[J]. Xinjiang Petroleum Geology,2003,24(2):118-120.
• [2]李宏义，姜振学，董月霞，等.渤海湾盆地南堡凹陷断层对油气运聚的控制作用[J].现代地质，2010,24(4):755-761.LI Hongyi, JIANG Zhenxue, DONG Yuexia, et al. Control of faults on hydrocarbon migration and accumulation in Nanpu Sag,Bohai Bay Basin[J]. Geoscience,2010,24(4):755-761.
• [3]于水明，陈雪芳，梅廉夫，等.珠一坳陷断层特征及对油气成藏的作用[J].石油天然气学报，2012,34(1):50-54.YU Shuiming,CHEN Xuefang,MEI Lianfu,et al. The effect of fault zone characteristics of Zhu 1 Depression on hydrocarbon accumulation[J]. Journal of Oil and Gas Technology, 2012,34(1):50-54.
• [4]王羽君.断裂输导-封闭转换部位预测方法及其在渤海湾盆地歧口凹陷的应用[J].大庆石油地质与开发，2023,42(1):50-56.WANG Yujun. Prediction method and application of fault conduction-seal transform location in Qikou Sag in Bohai Bay Basin[J]. Petroleum Geology&Oilfield Development in Daqing,2023,42(1):50-56.
• [5]周海超.下部储盖组合对上部同源储盖组合油气聚集的控制作用[J].大庆石油地质与开发，2022,41(1):41-47.ZHOU Haichao. Controlling of lower reservoir-seal assemblages on hydrocarbon accumulation of upper homologous reservoir-seal assemblage[J]. Petroleum Geology&Oilfield Development in Daqing,2022,41(1):41-47.
• [6]付广，赵凯，韩旭.苏德尔特地区南一段断裂向砂体侧向分流运移油气形式及其与油气富集关系[J].石油物探，2022,61(3):564-570.FU Guang,ZHAO Kai,HAN Xu. Lateral distributary migration of oil and gas from fault to sandbody in the Nan 1 Formation of the Sudeerte area,and its relationship with hydrocarbon accumulation[J]. Geophysical Prospecting for Petroleum, 2022, 61(3):564-570.
• [7]李令喜，刘爱永，胡志成，等.东濮凹陷濮卫地区油气输导特征及精细勘探方向[J].断块油气田，2023,30(1):96-99.LI Lingxi,LIU Aiyong,HU Zhicheng,et al. Hydrocarbon transport features and fine exploration directions in Puwei region of Dongpu Sag[J].Fault-Block Oil&Gas Field,2023,30(1):96-99.
• [8]胡文革.塔里木盆地顺北地区不同断裂带油气充注能力表征研究与实践[J].石油与天然气地质，2022, 43(3):528-541.HU Wen’ge. Study and practice of characterizing hydrocarbon charging capacity of different fault zones, Shunbei area, Tarim Basin[J]. Oil&Gas Geology,2022,43(3):528-541.
• [9]曹龙，王少鹏，高鹏宇，等.黄河口凹陷新近系岩性-构造油藏断层封闭性评价[J].断块油气田，2022, 29(4):502-507.CAO Long,WANG Shaopeng,GAO Pengyu,et al. Fault sealing of Neogene lithology-structural reservoirs in the Huanghekou Sag[J]. Fault-Block Oil&Gas Field,2022,29(4):502-507.
• [10]付晓飞，方德庆，吕延防，等.从断裂带内部结构出发评价断层垂向封闭性的方法[J].地球科学——中国地质大学学报，2005,30(3):328-336.FU Xiaofei,FANG Deqing,LüYanfang,et al. Method of evaluating vertical sealing of faults in terms of the internal structure of fault zones[J]. Earth Science(Journal of China University of Geosciences),2005,30(3):328-336.
• [11]刘景东，蒋有录，马国梁.断面优势运移通道的有效性及其对油气的控制作用[J].特种油气藏，2011,18(3):47-50.LIU Jingdong, JIANG Youlu, MA Guoliang. Effectiveness of fault surface dominant migration pathway and its control action on oil and gas[J]. Special Oil&Gas Reservoirs,2011,18(3):47-50.
• [12]赵靖舟.论幕式成藏[J].天然气地球科学，2005,16(4):469-476.ZHAO Jingzhou. On episodic migration and accumulation of hydrocarbon[J]. Natural Gas Geoscience,2005,16(4):469-476.
• [13]蒋维东，胡春明.库车坳陷逆掩断裂输导通道及输导天然气特征[J].新疆石油天然气，2005,1(1):23-29.JIANG Weidong, HU Chunming. Transporting passages of overthrust faults and their transporting gas characteristics in Kuche depression[J]. Xinjiang Oil&Gas,2005,1(1):23-29.
• [14]姜素华，曾溅辉，李涛，等.断层面形态对中浅层石油运移影响的模拟实验研究[J].中国海洋大学学报（自然科学版），2005,35(2):245-248,272.JIANG Suhua, ZENG Jianhui, LI Tao, et al. An experimental study on the influence of fault-plane shape on petroleum migration in middle and shallow formations[J]. Periodical of Ocean University of China(Natural Science Edition), 2005, 35(2):245-248,272.
• [15]果文斌，马朋朋，董军，等.活动期油源断裂输导油气有利凸面脊分布预测方法[J].大庆石油地质与开发，2022,41(4):54-59.GUO Wenbin, MA Pengpeng, DONG Jun, et al. Prediction method of favorable convex ridge distribution of oil and gas transported by oil source faults in activity period[J]. Petroleum Geology&Oilfield Development in Daqing,2022,41(4):54-59.
• [16]吕延防，李国会，王跃文，等.断层封闭性的定量研究方法.[J].石油学报，1996,17(3):39-45.LüYanfang, LI Guohui, WANG Yuewen, et al. Quantitative analysis in fault sealing properties[J]. Acta Petrolei Sinica,1996,17(3):39-45.
• [17]沙子萱，于丹，付广.下生上储式与上生下储式油源断裂油气输导差异性[J].特种油气藏，2022,29(2):9-15.SHA Zixuan, YU Dan, FU Guang. Difference in oil and gas transport between lower-source and upper-reservoir and uppersource and lower-reservoir oil source faults[J]. Special Oil&Gas Reservoirs,2022,29(2):9-15.
• [18]赵勇，戴俊生.应用落差分析研究生长断层[J].石油勘探与开发，2003,30(3):13-15.ZHAO Yong, DAI Junsheng. Identification of growth fault by fault fall analysis[J]. Petroleum Exploration and Development,2003,30(3):13-15.
• [19] ROBERTS A. Curvature attributes and their application to 3D interpreted horizons[J]. First Break,2001,19(2):85-100.
• [20]徐国庆，朱梓强，祝必兴，等.录井资料曲线构建的层序地层应用[C].北京：2019年油气地球物理学术年会，2019.XU Guoqing,ZHU Ziqiang,ZHU Bixing,et al. Application of the curve constructed using the mud logging data in sequence stratigraphic analysis[C]. Beijing:2019 Petroleum Geophysics Conference,2019.