东营凹陷八面河地区沙河街组沉积体系研究
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摘要
八面河地区位于东营凹陷南斜坡东段,是东营凹陷的油气富集区带之一,沙河街组是主要的含油层系。本论文在前一阶段研究所建立了的沙河街组层序地层格架的基础上,对整个沙河街组的沉积体系展布和演化、储层特征进行了系统研究,为下一步勘探开发提供指导。
研究区沙河街组地层划分为6个三级层序,除SQ3为二分层序外,其他层序都为三分层序,根据岩性组合变化及叠置关系对各个层序地层进一步细分,划分为32个准层序组。通过详细的岩心观察,在岩石类型及其组合、沉积构造、相序、古生物发育特点等综合研究的基础上,认为研究区主要发育了滨浅湖滩坝沉积、三角洲沉积和碳酸盐岩滩等沉积类型。滨浅湖滩坝沉积和碳酸盐滩沉积主要发育在SQ1、SQ2时期(沙四段),滩坝沉积主要分布于南部缓坡带,盆地边缘见砾石滩沉积;碳酸岩滩主要分布于研究区西北部,其它部位发育规模相对较小。三角洲沉积从沙四晚期开始一直向西部推进,规模不断加大,SQ4、SQ5(沙三段)沉积时期达到鼎盛,基本覆盖整个研究区。SQ6(沙一段、沙二段)地层受到剥蚀,地层较薄。SQ6低位域和湖侵域沉积时期,物源供应充足,三角洲砂体仍覆盖全区,仅在局部发育水下支流间湾沉积;SQ6-HST(沙一段)沉积时期,水体加深,物源影响减弱,三角洲覆盖面积变小,三角洲前缘发育滨浅湖沉积。八面河地区的储集相带主要为滨浅湖滩坝、碳酸盐滩坝和三角洲沉积,储层以高孔
-特高孔、中-高渗型为主。孔隙度和渗透性呈正相关。储层特征研究表明埋藏深度、成岩作用和沉积相是影响孔隙结构的主要因素。八面河地区陆源碎屑岩储层的物性明显好于碳酸盐岩储层,而对于前者来说粗粒级的储层性质随深度的变化明显优于细粒级储层,三角洲前缘砂体的孔隙度和渗透率普遍高于湖相的滩坝砂体。
Bamianhe area is located in eastern South Slope of Dongying Depression. As one of the enrichment zones of oil and gas,Shahejie formation is its major oil and gas formation. The purpose of this thesis is to build the sequence stratigraphic framework of Shehejie formation,and take into stratum structure,depositional system and other research of the key layer. The research results can provide guidance on the next step of oil and gas exploration and development.
On the basis of the stratigraphic character,we can divided Shahejie Formation into six third-order sequences. SequenceⅢcan be subdivided into transgressive and regressive systems tract. Other third-order sequence can be subdivided into lowstand systems tract,transgressive systems tract and highstand systems tract. According to the observation of the cores,the study on the types and combinations of rock,sedimentary structures,facies sequence,features of paleontology facies analysis of single well,found that Bamianhe area developed beach-bar,delta and carbonate beach.Beach-bar sedimentary body mainly developed in Es4.Then material source of supply is to strengthen, the delta is dominated in the sedimentary facies.With the delta continue to advance from east to west,the delta surfaces fully developed during the next periods.
Beach-bar,delta and carbonate beach are the main sedimentary facies for reservoir.Reservoir is high-super porosity and mid-high permeability.The relationship of porosity and permeability is positive,which indicates that porosity development control the permeability.The research above suggest that the factors control reserovir are sedimentary facies,diagenesis and tectonics.
研究区沙河街组地层划分为6个三级层序,除SQ3为二分层序外,其他层序都为三分层序,根据岩性组合变化及叠置关系对各个层序地层进一步细分,划分为32个准层序组。通过详细的岩心观察,在岩石类型及其组合、沉积构造、相序、古生物发育特点等综合研究的基础上,认为研究区主要发育了滨浅湖滩坝沉积、三角洲沉积和碳酸盐岩滩等沉积类型。滨浅湖滩坝沉积和碳酸盐滩沉积主要发育在SQ1、SQ2时期(沙四段),滩坝沉积主要分布于南部缓坡带,盆地边缘见砾石滩沉积;碳酸岩滩主要分布于研究区西北部,其它部位发育规模相对较小。三角洲沉积从沙四晚期开始一直向西部推进,规模不断加大,SQ4、SQ5(沙三段)沉积时期达到鼎盛,基本覆盖整个研究区。SQ6(沙一段、沙二段)地层受到剥蚀,地层较薄。SQ6低位域和湖侵域沉积时期,物源供应充足,三角洲砂体仍覆盖全区,仅在局部发育水下支流间湾沉积;SQ6-HST(沙一段)沉积时期,水体加深,物源影响减弱,三角洲覆盖面积变小,三角洲前缘发育滨浅湖沉积。八面河地区的储集相带主要为滨浅湖滩坝、碳酸盐滩坝和三角洲沉积,储层以高孔
-特高孔、中-高渗型为主。孔隙度和渗透性呈正相关。储层特征研究表明埋藏深度、成岩作用和沉积相是影响孔隙结构的主要因素。八面河地区陆源碎屑岩储层的物性明显好于碳酸盐岩储层,而对于前者来说粗粒级的储层性质随深度的变化明显优于细粒级储层,三角洲前缘砂体的孔隙度和渗透率普遍高于湖相的滩坝砂体。
Bamianhe area is located in eastern South Slope of Dongying Depression. As one of the enrichment zones of oil and gas,Shahejie formation is its major oil and gas formation. The purpose of this thesis is to build the sequence stratigraphic framework of Shehejie formation,and take into stratum structure,depositional system and other research of the key layer. The research results can provide guidance on the next step of oil and gas exploration and development.
On the basis of the stratigraphic character,we can divided Shahejie Formation into six third-order sequences. SequenceⅢcan be subdivided into transgressive and regressive systems tract. Other third-order sequence can be subdivided into lowstand systems tract,transgressive systems tract and highstand systems tract. According to the observation of the cores,the study on the types and combinations of rock,sedimentary structures,facies sequence,features of paleontology facies analysis of single well,found that Bamianhe area developed beach-bar,delta and carbonate beach.Beach-bar sedimentary body mainly developed in Es4.Then material source of supply is to strengthen, the delta is dominated in the sedimentary facies.With the delta continue to advance from east to west,the delta surfaces fully developed during the next periods.
Beach-bar,delta and carbonate beach are the main sedimentary facies for reservoir.Reservoir is high-super porosity and mid-high permeability.The relationship of porosity and permeability is positive,which indicates that porosity development control the permeability.The research above suggest that the factors control reserovir are sedimentary facies,diagenesis and tectonics.
引文
[1]解国军,金之钧.取精估计法在八面河探区资源潜量评价中的应用[J].石油大学学报(自然科学版). 2003, (01): 8-10,19.
[2]杨斌,姚小明,聂光华.八面河油田开发现状分析[J].石油天然气学报. 2008, (03): 320-321.
[3]倪金龙,吕宝凤,夏斌.渤海湾盆地八面河缓坡带断裂系统及其对孔店组油气成藏的影响[J].天然气地球科学. 2006, (03): 370-373,377.
[4]徐义卫.八面河地区孔店组沉积、层序及油气成藏条件研究[博士]:中国科学院研究生院(广州地球化学研究所).2006.
[5]徐义卫.八面河地区构造特征[J].石油天然气学报(江汉石油学院学报). 2005, (02): 177-178.
[6]王颖,赵锡奎,高博禹.济阳坳陷构造演化特征[J].成都理工学院学报. 2002.
[7]赵延江.东营凹陷古近系盆地结构与充填特征研究[博士]:中国科学院研究生院(广州地球化学研究所).2007.
[8]李雪.东营凹陷八面河地区沙河街组隐蔽油藏成藏研究[博士]:中国科学院研究生院(广州地球化学研究所).2006.
[9]冯常茂,朱忠德,李相明等.八面河油田南区沙三段沉积微相研究[J].河南石油. 2004, (06): 10-12,81.
[10]周军良.八面河地区南斜坡沙河街组层序地层研究[硕士]:中国石油大学; 2010.
[11]杨伟利,姜在兴.东营凹陷八面河地区孔店组河流-冲积相层序地层学研究.中国北京,2006.
[12]程日辉,王东坡.陆相层序地层学进展[J].岩相古地理. 1996, (01): 8-10,19
[13]顾家裕.陆相盆地层序地层学格架概念及模式[J].石油勘探与开发. 1995, (02): 1-5.
[14]裘怿楠等.中国陆相油气储集层[M].北京:石油工业出版社; 1997.09.
[15]李素梅,李雪,句礼荣,马晓昌.牛庄洼陷第三系古沉积环境及其控油气作用[J].石油与天然气地质. 2003.
[16]周建文,宋丽红,孙峥嵘等.博湖坳陷侏罗系重矿物特征及物源探讨[J].河南石油.2002, (01): 20-22,23.
[17]肖晨曦,李志忠.粒度分析及其在沉积学中应用研究[J].新疆师范大学学报(自然科学版). 2006, (03): 118-123.
[18]成都地质学院陕北队.沉积岩(物)粒度分析及其应用.北京:地质出版社; 1978.
[19]赵澄林,朱筱敏.沉积岩石学.北京:石油工业出版社; 2001.
[20]《沉积构造与环境解释》编著组.沉积构造与环境解释[M].北京:科学出版社; 1984.
[21]姜在兴.沉积学[M].北京:石油工业出版社; 2003.
[22]徐涛玉.广利西地区沙四上亚段物源体系及储层特征研究[硕士]:中国石油大学; 2009.
[23]金之钧.取精估计法在八面河探区资源潜量评价中的应用[J].石油大学学报(自然科学版). 2003, (01): 8-10,9.
[24]羊初珍,李雪,杨林海.八面河油田面120区块沙三-沙四段沉积微相研究[J].江汉石油学院学报. 2004, (04): 54-56.
[25]王志宏,李建明.八面河油田北区、广北区古近系沙三段沉积微相研究[J].江汉石油学院学报. 2003, (S1): 4-5.
[26]郑有恒.八面河地区南斜坡沙河街组油气成藏主控因素[J].江汉石油职工大学学报. 2010, (05): 14-16.
[27]朱筱敏,信荃麟,张晋仁.断陷湖盆滩坝储集体沉积特征及沉积模式[J].沉积学报. 1994, (02).
[28]王春梅,同晓山.八面河地区沙四段滩坝砂储层描述技术[J].江汉石油职工大学学报. 2010, (05): 31-32,35.
[29]戴启德,纪有亮.油气储层地质学[M].北京:石油工业出版社; 1996.
[30]吝文,姜在兴,张承泽.八面河油田沙三~沙四段成岩作用研究[J].内蒙古石油化工. 2007, (12): 292-296.
[31] Ehrenberg SN, Nadeau PH. Sandstone vs. carbonate petroleum reservoirs: A global perspective on porosity-depth and porosity-permeability relationships[J]. AAPG Bulletin. 2005, 89(4): 435-445.
[32] Rossi C, K?lin O, Arribas J et al. Diagenesis, provenance and reservoir quality ofTriassic TAGI sandstones from Ourhoud field, Berkine (Ghadames) Basin, Algeria[J]. Marine and Petroleum Geology. 2002, 19(2): 117-142.
[33]贾容.东营凹陷沙河街组碎屑岩储集层非均质性研究[J].石油地质与工程. 2007, (01): 18-20,24.
[34] Lima RD, De Ros LF. The role of depositional setting and diagenesis on the reservoir quality of Devonian sandstones from the Solim?es Basin, Brazilian Amazonia[J]. Marine and Petroleum Geology. 2002, 19(9): 1047-1071.
[35] Chowdhury AH, Noble JPA. Origin, distribution and significance of carbonate cements in the Albert Formation reservoir sandstones, New Brunswick, Canada[J]. Marine and Petroleum Geology. 1996, 13(7): 837-846.
[36]连承波.龙西地区泉四段低渗透储层特征及油气富集规[J]律. 2009.沉积学报. 2009(04): 50-5.
[37] Breen C, Clegg F, Herron MM et al. Bulk mineralogical characterisation of oilfield reservoir rocks and sandstones using Diffuse Reflectance Infrared Fourier Transform Spectroscopy and Partial Least Squares analysis[J]. Journal of Petroleum Science and Engineering. 2008, 60(1): 1-17.
[38]史基安,王琪.影响天然气储层物性的主要控制因素[J].沉积学报. 1995(03): 18-20,24.
[39] Morad S, Al-Ramadan K, Ketzer JM et al. The impact of diagenesis on the heterogeneity of sandstone reservoirs: A review of the role of depositional facies and sequence stratigraphy[J]. AAPG Bulletin. 2010, 94(8): 1267-1309.
[40] Zhang J, Qin L, Zhang Z. Depositional facies, diagenesis and their impact on the reservoir quality of Silurian sandstones from Tazhong area in central Tarim Basin, western China[J]. Journal of Asian Earth Sciences. 2008, 33(1-2): 42-60.
[2]杨斌,姚小明,聂光华.八面河油田开发现状分析[J].石油天然气学报. 2008, (03): 320-321.
[3]倪金龙,吕宝凤,夏斌.渤海湾盆地八面河缓坡带断裂系统及其对孔店组油气成藏的影响[J].天然气地球科学. 2006, (03): 370-373,377.
[4]徐义卫.八面河地区孔店组沉积、层序及油气成藏条件研究[博士]:中国科学院研究生院(广州地球化学研究所).2006.
[5]徐义卫.八面河地区构造特征[J].石油天然气学报(江汉石油学院学报). 2005, (02): 177-178.
[6]王颖,赵锡奎,高博禹.济阳坳陷构造演化特征[J].成都理工学院学报. 2002.
[7]赵延江.东营凹陷古近系盆地结构与充填特征研究[博士]:中国科学院研究生院(广州地球化学研究所).2007.
[8]李雪.东营凹陷八面河地区沙河街组隐蔽油藏成藏研究[博士]:中国科学院研究生院(广州地球化学研究所).2006.
[9]冯常茂,朱忠德,李相明等.八面河油田南区沙三段沉积微相研究[J].河南石油. 2004, (06): 10-12,81.
[10]周军良.八面河地区南斜坡沙河街组层序地层研究[硕士]:中国石油大学; 2010.
[11]杨伟利,姜在兴.东营凹陷八面河地区孔店组河流-冲积相层序地层学研究.中国北京,2006.
[12]程日辉,王东坡.陆相层序地层学进展[J].岩相古地理. 1996, (01): 8-10,19
[13]顾家裕.陆相盆地层序地层学格架概念及模式[J].石油勘探与开发. 1995, (02): 1-5.
[14]裘怿楠等.中国陆相油气储集层[M].北京:石油工业出版社; 1997.09.
[15]李素梅,李雪,句礼荣,马晓昌.牛庄洼陷第三系古沉积环境及其控油气作用[J].石油与天然气地质. 2003.
[16]周建文,宋丽红,孙峥嵘等.博湖坳陷侏罗系重矿物特征及物源探讨[J].河南石油.2002, (01): 20-22,23.
[17]肖晨曦,李志忠.粒度分析及其在沉积学中应用研究[J].新疆师范大学学报(自然科学版). 2006, (03): 118-123.
[18]成都地质学院陕北队.沉积岩(物)粒度分析及其应用.北京:地质出版社; 1978.
[19]赵澄林,朱筱敏.沉积岩石学.北京:石油工业出版社; 2001.
[20]《沉积构造与环境解释》编著组.沉积构造与环境解释[M].北京:科学出版社; 1984.
[21]姜在兴.沉积学[M].北京:石油工业出版社; 2003.
[22]徐涛玉.广利西地区沙四上亚段物源体系及储层特征研究[硕士]:中国石油大学; 2009.
[23]金之钧.取精估计法在八面河探区资源潜量评价中的应用[J].石油大学学报(自然科学版). 2003, (01): 8-10,9.
[24]羊初珍,李雪,杨林海.八面河油田面120区块沙三-沙四段沉积微相研究[J].江汉石油学院学报. 2004, (04): 54-56.
[25]王志宏,李建明.八面河油田北区、广北区古近系沙三段沉积微相研究[J].江汉石油学院学报. 2003, (S1): 4-5.
[26]郑有恒.八面河地区南斜坡沙河街组油气成藏主控因素[J].江汉石油职工大学学报. 2010, (05): 14-16.
[27]朱筱敏,信荃麟,张晋仁.断陷湖盆滩坝储集体沉积特征及沉积模式[J].沉积学报. 1994, (02).
[28]王春梅,同晓山.八面河地区沙四段滩坝砂储层描述技术[J].江汉石油职工大学学报. 2010, (05): 31-32,35.
[29]戴启德,纪有亮.油气储层地质学[M].北京:石油工业出版社; 1996.
[30]吝文,姜在兴,张承泽.八面河油田沙三~沙四段成岩作用研究[J].内蒙古石油化工. 2007, (12): 292-296.
[31] Ehrenberg SN, Nadeau PH. Sandstone vs. carbonate petroleum reservoirs: A global perspective on porosity-depth and porosity-permeability relationships[J]. AAPG Bulletin. 2005, 89(4): 435-445.
[32] Rossi C, K?lin O, Arribas J et al. Diagenesis, provenance and reservoir quality ofTriassic TAGI sandstones from Ourhoud field, Berkine (Ghadames) Basin, Algeria[J]. Marine and Petroleum Geology. 2002, 19(2): 117-142.
[33]贾容.东营凹陷沙河街组碎屑岩储集层非均质性研究[J].石油地质与工程. 2007, (01): 18-20,24.
[34] Lima RD, De Ros LF. The role of depositional setting and diagenesis on the reservoir quality of Devonian sandstones from the Solim?es Basin, Brazilian Amazonia[J]. Marine and Petroleum Geology. 2002, 19(9): 1047-1071.
[35] Chowdhury AH, Noble JPA. Origin, distribution and significance of carbonate cements in the Albert Formation reservoir sandstones, New Brunswick, Canada[J]. Marine and Petroleum Geology. 1996, 13(7): 837-846.
[36]连承波.龙西地区泉四段低渗透储层特征及油气富集规[J]律. 2009.沉积学报. 2009(04): 50-5.
[37] Breen C, Clegg F, Herron MM et al. Bulk mineralogical characterisation of oilfield reservoir rocks and sandstones using Diffuse Reflectance Infrared Fourier Transform Spectroscopy and Partial Least Squares analysis[J]. Journal of Petroleum Science and Engineering. 2008, 60(1): 1-17.
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