古龙南地区薄层低丰度油藏水平井沉积相描述方法
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摘要
沉积相研究是油气田勘探开发中一项重要工作,基于直井信息的沉积相研究技术较为成熟,但对于水平井沉积相的描述方法尚无成型经验。从水平井和直井的测井、录井资料及测井响应机理等方面进行了分析,建立了水平井和直井的电阻率关系,以储层"四性关系"为基础,构建水平井沉积微相判别图版,可以准确识别沉积微相类型。在水平井储层分段精细描述的基础上,依据水平井分段判相结果,可有效地解决平面相带组合过程中存在的盲目性和多解性的问题。与单纯应用直井信息刻画相带进行对比,水平井参与相带组合,变相增加了井网密度,能够合理、准确地反映地下地质体情况,使砂体接触关系和储层平面非均质性描述更加清晰。在实践中探索形成的这套水平井沉积相描述方法,对今后水平井高效开发具有重要指导意义,向实现精准地质研究目标迈进一步。
The study of the sedimentary facies is an important work in the exploration and development of oil and gas fields,the research of the sedimentary facies based on the vertical well information is much more mature,but there is no experience in the description of the horizontal wells. Based on the analyses of the logging,mud logging data and logging response mechanism in both the horizontal and vertical wells,the resistivity relationship between the horizontal and vertical wells was established,and moreover on the foundation of the reservoir "Four Relationships",the sedimentary microfacies identifying board chart was mapped for the horizontal well,thus the types of the sedimentary facies can be accurately identified. On the basis of the fine segmented reservoir description of the horizontal well,according to the identification results of the horizontal well,the problems of the blindness and multi-solution in the process of the combination of planar sedimentary facies and belt can be effectively solved.Compared with the simple application of the vertical well information to characterize the sedimentary facies,afterapplying the horizontal well information in the combination,which is equivalent to the increase of the well pattern density in another way,the underground geological body conditions can be reasonable and accurate to reflect,and furthermore make the contact relationships between the sandbodies and planar reservoir heterogeneity more clear.The set of the horizontal well sedimentary facies describing method explored and developing in the practice is the further step towards the goal of precise geological research and moreover possess important guiding significance for the high-efficiency development by horizontal wells in the future.
The study of the sedimentary facies is an important work in the exploration and development of oil and gas fields,the research of the sedimentary facies based on the vertical well information is much more mature,but there is no experience in the description of the horizontal wells. Based on the analyses of the logging,mud logging data and logging response mechanism in both the horizontal and vertical wells,the resistivity relationship between the horizontal and vertical wells was established,and moreover on the foundation of the reservoir "Four Relationships",the sedimentary microfacies identifying board chart was mapped for the horizontal well,thus the types of the sedimentary facies can be accurately identified. On the basis of the fine segmented reservoir description of the horizontal well,according to the identification results of the horizontal well,the problems of the blindness and multi-solution in the process of the combination of planar sedimentary facies and belt can be effectively solved.Compared with the simple application of the vertical well information to characterize the sedimentary facies,afterapplying the horizontal well information in the combination,which is equivalent to the increase of the well pattern density in another way,the underground geological body conditions can be reasonable and accurate to reflect,and furthermore make the contact relationships between the sandbodies and planar reservoir heterogeneity more clear.The set of the horizontal well sedimentary facies describing method explored and developing in the practice is the further step towards the goal of precise geological research and moreover possess important guiding significance for the high-efficiency development by horizontal wells in the future.
引文
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[19]王鸿军.古龙南地区葡萄花油藏高分辨层序地层学研究[J].大庆石油地质与开发,2015,34(5):39-43.
[20]宋延杰,姜艳娇,宋杨,等.古龙南地区低阻油层胶结指数和饱和度指数影响因素实验[J].吉林大学学报(地球科学版),2014,44(2):704-714.
[21]邹才能,袁选俊,陶士振,等.岩性地层油气藏[M].北京:石油工业出版社,2009.
[2]吴元燕,吴胜和.油矿地质学[M].北京:石油工业出版社,2000.
[3]郭巍,刘招君,刘群,等.松辽盆地南部高台子油层成藏动力学[J].吉林大学学报(地球科学版),2010,40(3):482-490.
[4]张昌民,尹太举,朱永进,等.浅水三角洲沉积模式[J].沉积学报,2010,28(5):933-944.
[5]佟斯琴,李斌,罗群,等.古龙南凹陷葡萄花油层储层层序地层及沉积体系研究[J].断块油气田,2014,21(6):688-689.
[6]佟斯琴,李斌,罗群,等.松辽盆地古龙南凹陷葡萄花油层储层单砂体沉积微相研究及有利砂体预测[J].石油与天然气地质,2014,35(4):27-29.
[7]刘福义.古龙南凹陷葡萄花油藏致密油成藏机理研究[J].石油地质与工程,2015,29(3):16-20.
[8]张剑风.低渗透油藏水平井井网优化研究[J].长江大学学报(自然科学版),2014,11(20):73-75.
[9]姜再兴.沉积学[M].北京:石油工业出版社,2003.
[10]宋子齐,王桂城,赵宏宇,等.利用单渗砂层能量厚度研究有利沉积微相及其含油有利区的方法[J].沉积学报,2008,26(3):452-458.
[11]秦臻,汪中浩,后敏,等.水平井地层电阻率各向异性模拟机实例分析[J].国外测井技术,2011,182(2):9-10.
[12]谢喜龙,张冀炜,刑小峰,等.水平井电阻率测井各向异性分析[J].石油仪器,2013,27(5):78-79.
[13]李鹏翔,陈宝树.双感应资料识别水平井段井眼附近的泥质夹层[J].石油天然气学报,1996,18(4):44-47.
[14]陈冬,王彦春,汪中浩,等.水平井地层电阻率各向异性研究[J].物探与化探,2007,31(3):232-234.
[15]赵江青,王成龙,叶青竹.岩石各向异性在水平井测井解释中的应用[J].测井技术,1998,22(1):36-41.
[16]王志章.现代油藏描述技术[M].北京:石油工业出版社,1999.
[17]倪新锋,田景春,陈洪德,等.应用测井资料定量识别沉积微相[J].成都理工大学学报(自然科学版),2007,34(1):57-61.
[18]王金荣,刘洪涛.测井沉积微相识别方法及应用[J].大庆石油学院学报,2004,28(4):18-20.
[19]王鸿军.古龙南地区葡萄花油藏高分辨层序地层学研究[J].大庆石油地质与开发,2015,34(5):39-43.
[20]宋延杰,姜艳娇,宋杨,等.古龙南地区低阻油层胶结指数和饱和度指数影响因素实验[J].吉林大学学报(地球科学版),2014,44(2):704-714.
[21]邹才能,袁选俊,陶士振,等.岩性地层油气藏[M].北京:石油工业出版社,2009.
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