Characteristics of High-quality Reservoirs in the Braided River Delta in Kenli-A Oilfield

doi:10.11885/j.issn.1674-5086.2018.09.02.03

Abstract

Abstract:

A clear understanding of the characteristics and genesis of high-quality reservoirs in Kenli A Oilfield in the Laizhou Bay Sag of the Bohai Bay Basin in Upper Es₃ of the Paleogene Shahejie Formation can provide a foundation for oil and gas exploration in the depression. Combining data from drilling, logging, thin section casting, scanning electron microscopy, physical properties, fluid inclusions, and other analytical testing methods, the regional tectonic background, burial history, and sedimentary systems were investigated. The upper reservoir of the Shahejie Formation exhibited characteristics of "high porosity and high permeability" and the reservoir space was shown to be dominated by intergranular pores with relatively welldeveloped micro-cracks. The pore throat can be classified as large-medium or medium-small throat. The reservoir diagenetic effect is generally observed in middle diagenetic stage A, which is characterized by "medium compaction, strong dissolution, and weak cementation". The formation of high-quality reservoirs is affected by four main aspects:Tectonic setting, sedimentary environment, diagenesis, and overpressure of the formation. Reservoir development in the southern slope of the Laizhou Bay Sag is zonal, where high-quality reservoirs develop on the inner side of the gravity slip fault (F₁), providing a favorable area for oil and gas accumulation.

Key words: Bohai Bay Basin, braided river delta front, reservoir quality, diagenesis, physical control factors

CLC Number:

TE122

ZHAO Hanqing, GUO Cheng, CHEN Xiaoming, LIU Chao, ZHANG Bo. Characteristics of High-quality Reservoirs in the Braided River Delta in Kenli-A Oilfield[J]. 西南石油大学学报(自然科学版), 2019, 41(5): 21-32.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2018.09.02.03

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2019/V41/I5/21

References

[1] 高崇龙,纪友亮,靳军,等. 准噶尔盆地莫索湾地区清水河组深层优质储层特征及其物性控制因素[J]. 吉林大学学报(地球科学版), 2017, 47(4):990-1006. doi:10.13278/j.cnki.jjuese.201704103 GAO Chonglong, JI Youliang, JIN Jun, et al. Characteristics and controlling factors on physical properties of deep buried favorable reservoirs of the Qingshuihe Formation in Muosuowan Area, Junggar Basin[J]. Journal of Jilin University (Earth Science Edition), 2017, 47(4):990-1006. doi:10.13278/j.cnki.jjuese.201704103
[2] 刘招君,董清水,王嗣敏,等. 陆相层序地层学导论与应用[M]. 北京:石油工业出版社, 2002:1-87. LIU Zhaojun, DONG Qingshui, WANG Simin, et al. Introduction to continental sequence stratigraphy and application[M]. Beijing:Petroleum Industry Press, 2002:1-87.
[3] 刘招君,胡菲,孙平昌,等. 再论陆相三级层序内四分方案及其在油气勘探中的应用[J]. 吉林大学学报(地球科学版), 2013, 43(1):1-12. LIU Zhaojun, HU Fei, SUN Pingchang, et al. Rediscussion on the four division scheme about continental sequence stratigraphy and its application on oil and gas exploration[J]. Journal of Jilin University (Earth Science Edition), 2013, 43(1):1-12.
[4] MORAD S, Al-RAMADAN K, KETZER J M, 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. doi:10.1306/04211009178
[5] MUFTAH K, MORAD S. Impact of structural setting on diagenesis of fluvial and tidal sandstones:The Bahi Formation, Upper Cretaceous, NW Sirt Basin, North Central Libya[J]. Marine and Petroleum Geology, 2012, 38(3) 211-231. doi:10.1016/j.marpetgeo.2011.05.006
[6] MA Benben, ERIKSSON K A, CAO Yingchang, et al. Fluid flow and related diagenetic processes in a rift basin:Evidence from the fourth member of the Eocene Shahejie Formation interval, Dongying Depression, Bohai Bay Basin, China[J]. AAPG Bulletin, 2016, 100(11):1633-1662. doi:10.1306/04211615207
[7] 赵汉卿,陈存良,陈晓明,等. 垦利10-4油田沙三上段成岩作用与油气充注耦合关系[J]. 断块油气田, 2018, 25(4):435-439. doi:10.6056/dkyqt201804006 ZHAO Hanqing, CHEN Cunliang, CHEN Xiaoming, et al. Coupling relationship between diagenesis and hydrocarbon charging in the upper 3^rd Member of Eogene Shahejie Formation of the Kenli 10-4 Oilfield[J]. FaultBlock Oil & Gas Field, 2018, 25(4):435-439. doi:10.6056/dkyqt201804006
[8] 赵汉卿,张建民,李栓豹,等. 渤海湾盆地A油田新近系明下段沉积特征及演化模式[J]. 吉林大学学报(地球科学版), 2017, 47(4):1021-1029. doi:10.13278/j.-cnki.jjuese.201704105 ZHAO Hanqing, ZHANG Jianmin, LI Shuanbao, et al. Sedimentary characteristics and evolution models of lower part of Minghuazhen Formation in Neogene System at A Oilfield, Bohai Bay Basin[J]. Journal of Jilin University (Earth Science Edition), 2017, 47(4):1021-1029. doi:10.13278/j.cnki.jjuese.201704105
[9] 方旭庆,林会喜,王智帮. 垦东凸起"陀螺式"演化与油气成藏[J]. 西安石油大学学报(自然科学版), 2007, 22(4):13-16. doi:10.3969/j.issn.1673-064X.2007.04.-004 FANG Xuqing, LIN Huixi, WANG Zhibang. Gyrotype tectonic evolution and hydrocarbon accumulation of Kendong Uplift[J]. Journal of Xi'an Shiyou University (Natural Science Edition), 2007, 22(4):13-16. doi:10.3969/j.issn.1673-064X.2007.04.004
[10] 陈存良,韩晓冬,赵汉卿,等. 低渗透油藏井间动态连通性研究[J]. 特种油气藏, 2018, 25(2):102-106. doi:10.3969/j.issn.1006-6535.2018.02.020 CHEN Cunliang, HAN Xiaodong, ZHAO Hanqing, et al. Dynamic inter-well connectivity in low-permeability oil reservoir[J]. Special Oil and Gas Reservoir, 2018, 25(2):102-106. doi:10.3969/j.issn.1006-6535.2018.02.020
[11] 吴胜和. 储集层表征与建模[M]. 北京:石油工业出版社, 2010:210-215. WU Shenghe. Reservoir characterization & modeling[M]. Beijing:Petroleum Industry Press, 2010:210-215.
[12] 于洋,刘鹏,宋国奇,等. 渤南洼陷沙四上亚段多类型储集体沉积成岩差异性分析[J]. 中南大学学报(自然科学版), 2015, 46(6):2162-2170. doi:10.11817/j.issn.-1672-7207.2015.06.026 YU Yang, LIU Peng, SONG Guoqi, et al. Analysis of differences about sedimentation and diagenesis of multitype reservoir in upper part of Es₄ in Bonan Sag[J]. Journal of Central South University (Science and Technology), 2015, 46(6):2162-2170. doi:10.11817/j.issn.1672-7207.2015.-06.026
[13] 陈波,王子天,康莉,等. 准噶尔盆地玛北地区三叠系百口泉组储层成岩作用及孔隙演化[J]. 吉林大学学报(地球科学版),2016,46(1):23-35. doi:10.13278/j.-cnki.jjuese.201601103 CHEN Bo, WANG Zitian, KANG Li, et al. Diagenesis and pore evolution of Triassic Basikouquan Formationin Mabei Region, Junggar Basin[J]. Journal of Jilin University (Earth Science Edition), 2016, 46(1):23-35. doi:10.13278/j.cnki.jjuese.201601103
[14] HENARES S, CARACCIOLO L, VISERAS C, et al. Diagenetic constraints on heterogeneous reservoir quality assessment:A Triassic outcrop analog of meandering fluvial reservoirs[J]. AAPG Bulletin, 2016, 100(9):1377-1398. doi:10.1306/04041615103
[15] 孟涛,刘鹏,邱隆伟,等. 咸化湖盆深部优质储集层形成机制与分布规律——以渤海湾盆地济阳坳陷渤南洼陷古近系沙河街组四段上亚段为例[J]. 石油勘探与开发,2017,44(6):896-906. doi:10.11698/PED.2017.-06.07 MENG Tao, LIU Peng, QIU Longwei, et al. Formation and distribution of the high quality reservoirs in a deep saline lacustrine basin:A case study from the upper part of the 4^th Member of Paleogene Shahejie Formation in Bonan Sag, Jiyang Depression, Bohai Bay Basin, East China[J]. Petroleum Exploration and Development, 2017, 44(6):896-906. doi:10.11698/PED.2017.06.07
[16] 操应长,贾艳聪,王艳忠,等. 渤南洼陷北带沙四上亚段储层成岩流体演化[J]. 现代地质, 2014, 28(1):197-207. doi:10.3969/j.issn.1000-8527.2014.01.021 CAO Yingchang, JIA Yancong, WANG Yanzhong, et al. Diagenetic fluid evolution of reservoir in Es₄^s in the north zone of the Bonan Sag[J].Geoscience, 2014, 28(1):197-207. doi:10.3969/j.issn.1000-8527.2014.01.021
[17] 祝海华,钟大康,姚泾利,等. 碱性环境成岩作用及对储集层孔隙的影响——以鄂尔多斯盆地长7段致密砂岩为例[J]. 石油勘探与开发, 2015, 42(1):51-59. doi:10.11698/PED.2015.01.06 ZHU Haihua, ZHONG Dakang, YAO Jingli, et al. Alkaline diagenesis and its effects on reservoir porosity:A case study of Upper Triassic Chang 7 tight sandstones in Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2015, 42(1):51-59. doi:10.11698/PED.2015.01.06
[18] AJDUKIEWICZ J M, NICHOLSON P H, ESCH W L. Prediction of deep reservoir quality using early diagenetic process models in the Jurassic Norphlet Formation, Gulf of Mexico[J]. AAPG Bulletin, 2010, 94(8):1189-1227. doi:10.1306/04211009152
[19] 隋风贵,刘庆,张林晔. 济阳断陷盆地烃源岩成岩演化及其排烃意义[J]. 石油学报, 2007, 28(6):12-16. doi:10.3321/j.issn:0253-2697.2007.06.003 SUI Fenggui, LIU Qing, ZHANG Linye. Diagenetic evolution of source rocks and its significance to hydrocarbon expulsion in Shahejie Formation of Jiyang Depression[J]. Acta Petrolei Sinica, 2007, 28(6):12-16. doi:10.3321/j.issn:0253-2697.2007.06.003
[20] 应凤祥,罗平,何东博,等. 中国含油气盆地碎屑岩储层成岩作用与成岩数值模拟[M]. 北京:石油工业出版社, 2004:56-59. YING Fengxiang, LUO Ping, HE Dongbo, et al. The diagenesis and diagenetic modeling of clastic reservoirs in China's petroliferous basin[M]. Beijing:Petroleum Industry Press, 2004:56-59.
[21] 孟元林,黄文彪,王粤川,等. 超压背景下黏土矿物转化的化学动力学模型及应用[J]. 沉积学报, 2006, 24(4):461-467. doi:10.3969/j.issn.1000-0550.2006.04.001 MENG Yuanlin, HUANG Wenbiao, WANG Yuechuan, et al. A kinetic model of clay mineral transformation in overpressure setting and its applications[J]. Acta Sedimentological Sinica, 2006, 24(4):461-467. doi:10.3969/j.issn.-1000-0550.2006.04.001
[22] 吴穹螈,吴胜和,秦国省,等. 密井网条件下钙质胶结条带空间展布研究[J]. 西南石油大学学报(自然科学版), 2017, 39(4):71-80. doi:10.11885/j.issn.1674-5086.2016.03.24.03 WU Qiongyuan, WU Shenghe, QIN Guosheng, et al. Study on spatial distribution of calcite-cemented strips under close well-spacing conditions[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2017, 39(4):71-80. doi:10.11885/j.issn.1674-5086.2016.03.24.03
[23] 石良,金振奎,闫伟,等. 异常高压对储集层压实和胶结作用的影响——以渤海湾盆地渤中凹陷西北次凹为例[J]. 石油勘探与开发, 2015, 42(3):310-318. doi:10.11698/PED.2015.03.07 SHI Liang, JIN Zhenkui, YAN Wei, et al. Influence of overpressure on reservoir compaction and cementation:A case from northwestern subsag, Bozhong Sag, Bohai Bay Basin, East China[J]. Petroleum Exploration and Development, 2015, 42(3):310-318. doi:10.11698/PED.2015.-03.07
[24] 何生,何治亮,杨智,等. 准噶尔盆地腹部侏罗系超压特征和测井响应以及成因[J]. 地球科学——中国地质大学学报, 2009, 34(3):457-470. doi:10.3321/j.issn:-1000-2383.2009.03.010 HE Sheng, HE Zhiliang, YANG Zhi, et al. Characteristics, well-log responses and mechanisms of overpressure within the Jurassic Formation in the central part of Junggar Basin[J]. Earth Science-Journal of China University of Geosciences, 2009, 34(3):457-470. doi:10.3321/j.issn:-1000-2383.2009.03.010
[25] 刘伟新,王延斌,秦建中. 川北阿坝地区三叠系黏土矿物特征及地质意义[J]. 地质科学, 2007, 42(3):469-482. doi:10.3321/j.issn:0563-5020.2007.03.005 LIU Weixin, WANG Yanbin, QIN Jianzhong. Characteristics of the Triassic clay minerals in Aba Area, Northern Sichuan, and its geological implications[J]. Chinese Journal of Geology, 2007, 42(3):469-482. doi:10.3321/j.issn:0563-5020.2007.03.005
[26] 刘鹏. 渤南洼陷古近系早期成藏作用再认识及其地质意义[J]. 沉积学报, 2017, 35(1):173-181. doi:10.14027/j.cnki.cjxb.2017.01.017 LIU Peng. Geological significance of re-recognition on early reservoir forming of Paleogene in Bonan Sag[J]. Acta Sedimentologica Sinica, 2017, 35(1):173-181. doi:10.14027/j.cnki.cjxb.2017.01.017
[27] 董果果,黄文辉,万欢,等. 东营凹陷北部陡坡带沙四上亚段砂砾岩储集层固体流体相互作用研究[J]. 现代地质, 2013, 27(4):941-948. doi:10.3969/j.issn.-1000-8527.2013.04.021 DONG Guoguo, HUANG Wenhui, WAN Huan, et al. Solid-fluid interaction in glutenite reservoirs of the Upper Submember, Fourth Member, Shahejie Formation in Northern Slope of Dongying Sag[J]. Geoscience, 2013, 27(4):941-948. doi:10.3969/j.issn.1000-8527.2013.04.-021