Lithologic Reservoirs ›› 2021, Vol. 33 ›› Issue (5): 107-119.doi: 10.12108/yxyqc.20210510

• PETROLEUM GEOLOGY • Previous Articles     Next Articles

Effective reservoir thickness of main oil layers in Dingbian Oilfield, Ordos Basin

XU Jing1,2, HE Yonghong2, MA Fangxia2, DU Yanjun2, MA Lang2, GE Yunjin2, WANG Ruisheng3, GUO Rui2, DUAN Liang1   

  1. 1. Department of Geology, Northwest University, Xi'an 710069, China;
    2. Research Institute of Yanchang Petroleum(Group) Co., Ltd, Xi'an 710065, China;
    3. Dingbian Oil Production Plant, Yanchang Oilfield Co., Ltd, Yulin 718699, Shaanxi, China
  • Received:2021-01-15 Revised:2021-04-06 Online:2021-10-01 Published:2021-09-30

PDF (PC)

315

Abstract: The Mesozoic reservoirs in Shajian area of Dingbian Oilfield, Ordos Basin are characterized by strong reservoir heterogeneity, overlapping of multiple oil-water systems and coexistence of low resistivity and conventional resistivity reservoirs. In order to identify effective reservoirs, based on core, logging, formation test and production test, high-pressure physical properties and sealed coring data, the logging interpretation models of Yan 9, Chang 6 and Chang 9 reservoirs were established. Then, lower limits of effective thickness of each reservoir were comprehensively analyzed, and the origin of the difference of lower limits of physical and electrical properties were discussed. The results show that:①The lower limits of effective thickness porosity of Main oil reservoirs in Shajian area of Dingbian Oilfield are 12.5%, 9.0%, 7.0% respectively, the lower limits of permeability are 2.0 mD, 0.2 mD, 0.3 mD respectively, the lower limits of acoustic time difference are 239 μs/m, 222 μs/m, 213 μs/m respectively, the lower limits of resistivity are 6.0 Ω·m, 13.0 Ω·m, 17.5 Ω·m respectively, and the lower limits of oil saturation are 47.5%, 44.0%, 41.5% respectively.② Differential diagenesis results in the difference of the lower limits of physical property of each reservoir. The physical property conditions of Yan 9 reservoir with weak compaction and carbonate cementation are better than those of Chang 6 and Chang 9;The development of chlorite film in Chang 6 reservoir preserves some intergranular pores, while authigenic clay mineral is easy to block the pore throats, resulting in low permeability. The porosity of Chang 9 oil reservoir reduced by strong compaction and cementation is larger than that of Chang 6 oil reservoir, but the improvement of permeability by dissolution is stronger than that of Chang 6 oil-bearing formation. ③The intrusion of drilling fluid, the influence of reservoir physical properties and additional conductivity of clay are the main reasons for the lower limits of resistivity of Yan 9 oil reservoir. Understanding the difference and the origin of the lower limits of effective thickness for the main oil-bearing formations will help to understand the variation of Mesozoic reservoirs in Ordos Basin and improve the prediction accuracy of favorable reservoir areas.

Key words: lower limits of effective thickness, diagenesis, low resistivity reservoir, Mesozoic, Dingbian Oilfield, Ordos Basin

CLC Number: 

  • TE122
[1] 杨通佑, 范尚炯, 陈元千, 等.石油及天然气储量计算方法.北京:石油工业出版社, 1990:31-46. YANY T Y, FAN S J, CHEN Y Q, et al. Petroleum and natural gas reservoirs calculation methods. Beijing:Petroleum Industry Press, 1990:31-46.
[2] 刘达林.试油层位选择及提高探井试油成功率之我见.油气井测试, 2002, 11(2):39-42. LIU D L. The opinion of both choosing layer location and improving success ratio about production testing in deep wells. Well Testing, 2002, 11(2):39-42.
[3] 郭睿.储集层物性下限值确定方法及其补充.石油勘探与开发, 2004, 31(5):140-144. GUO R. Supplement to determining method of cut-off value of net pay. Petroleum Exploration and Development, 2004, 31(5):140-144.
[4] 刘震, 黄艳辉, 潘高峰, 等.低孔渗砂岩储层临界物性确定及其石油地质意义.地质学报, 2013, 86(11):1815-1825. LIU Z, HUANG Y H, PAN G F, et al. Determination of critical properties of low porosity and permeability sandstone reservoir and its significance in petroleum geology. Acta Geological Sinica, 2013, 86(11):1815-1825.
[5] 路智勇, 韩学辉, 张欣, 等.储层物性下限确定方法的研究现状与展望. 中国石油大学学报(自然科学版), 2016, 40(5):32-42. LU Z Y, HAN X H, ZHANG X, et al. Research status and outlookfor methods of determining petrophysical property cutoffs. Journal of China University of Petroleum(Edition of Natural Science), 2016, 40(5):32-42.
[6] 刘冬冬. 鄂尔多斯盆地靖边地区ZJ4区块延9段储层特征及地质建模.成都:成都理工大学, 2018. LIU D D. Reservoir Characteristics and geological modeling model of ZJ4 block Yan 9 section in Jingbian area of Ordos Basin. Chengdu:Chengdu University of Technology, 2018.
[7] 张宇, 周冕, 李文斌, 等.靖边油田侏罗系延安组延9油藏有效厚度下限研究.辽宁化工, 2020, 49(6):729-731. ZHANG Y, ZHOU M, LI W B, et al. Research on effective thickness lower limit of Yan 9 oil reservoir of Yan'an Formation of Jurassic in Jingbian Oilfield. Liaoning Chemical Industry, 2020, 49(6):729-731.
[8] 王媛媛, 王桂成, 徐勇强, 等.杏子川油田长6低渗透储层有效厚度下限研究.地质科技情报, 2013, 32(3):113-117. WANG Y Y, WANG G C,XU Y Q,et al. Research on the minimum net pay thickness for Chang 6 oil reservoirs with low permeability in Xingzichuan oilfield,Geological Science and Technology Information, 2013, 32(3):113-117.
[9] 姜锐.鄂尔多斯盆地柴上塬区长6储层地质建模与储量计算研究.西安:西安石油大学, 2020. JIANG Y. Study on geological modeling and reserve calculation of Chang6 in Chaishangyuan area of Ordos Basin. Xi'an:Xi'an Shiyou University, 2020.
[10] 张晓龙.鄂尔多斯盆地志丹油区长6油层组低孔低渗储层地质特征及测井评价.西安:西北大学, 2017. ZHANG X L. Reservoirs characteristics and well-logging evaluation of the low porosity and low permeability reservoirs of Chang 6 member,Triassic Yanchang Formation in Zhidan area, Ordos Basin. Xi'an:Northwest University, 2017.
[11] 刘溪, 李文厚, 韩伟.华庆地区长6储层四性关系及有效厚度下限研究.西北地质, 2010, 43(1):124-129. LIU X, LI W H, HAN W. Research on the four-property relation and net pay cut-off thickness of Chang-6 reservoir in Huaqing Region. Northwestern Geology, 2010, 43(1):124-129.
[12] 张凤奇, 钟红利, 魏登峰, 等, 刘伟.鄂尔多斯盆地陕北斜坡东南部长7段致密砂岩油藏成藏物性下限.天然气地球科学, 2017, 28(2):232-240. ZHANG F Q, ZHONG H L, WEI D F, et al. Lower limits of porosity and permeability for tight oil accumulations in the Chang 7 member 9 southeastern Shaanbei slope 9 Ordos Basin. Natural Gas Geoscience, 2017, 28(2):232-240.
[13] 付金华, 罗安湘, 张妮妮, 等.鄂尔多斯盆地长7油层组有效储层物性下限的确定.中国石油勘探, 2014, 19(6):82-88. FU J H, LUO A X, ZHANG N N, et al. Determine lower limits of physical properties of effective reservoirs in Chang 7 oil formation in Ordos Basin. China Petroleum Exploration, 2014, 19(6):82-88.
[14] 康鹏兴.致密油储层物性动用下限确定方法研究:以鄂尔多斯盆地吴仓堡油区长7储层为例.西安:西安石油大学, 2016. KANG P X. Study on methods for determining the physical lower limit of tight oil,taking the Chang 7 reservoir of Wucangbao oilfield in Ordos Basin as example. Xi'an:Xi'an Shiyou University, 2016.
[15] 曲长伟, 张霞, 林春明, 等.镇泾油田长9储层四性关系及有效厚度下限研究.辽宁化工, 2013, 42(2):131-135. QU C W, ZHANG X, LIN C M, et al. Study on four-property relationship and effective thickness lower limit of Chang 9 reservoir in Zhenjing Oilfield. Liaoning Chemical Industry, 2013, 42(2):131-135.
[16] 杨琼英, 汤小燕.吴仓堡油田长9油层有效厚度起算标准研究.国外测井技术, 2012, 33(1):29-32. YANG Q Y, TANG X Y. The effective thickness standard of Chang 9 reservoir in Wucangbao Oilfield. World Well Logging Technology, 2012, 33(1):29-32.
[17] 王居峰, 赵文智, 郭彦如, 等.鄂尔多斯盆地三叠系延长组石油资源现状与勘探潜力分析.现代地质, 2010, 24(5):957-964. WANG J F, ZHAO W Z, GUO Y R, et al. Analyses of petroleum resources status and exploration potentialities, Triassic Yanchang Formation in Ordos Basin. Geoscience, 2010, 24(5):957-964.
[18] 曹江骏, 陈朝兵, 程皇辉, 等.成岩作用对深水致密砂岩储层微观非均质性的影响:以鄂尔多斯盆地合水地区长7油层组为例.沉积学报, 2020:1-20. CAO J J, CHEN C B, CHEN H H, et al. Effect of diagenesis on microheterogeneity of deepwater tight sandstone reservoirs:A case study from the Triassic Chang 7 oil-bearing formation in Heshui area,Ordos Basin,NW China. Acta Sedimentological Sinica, 2020:1-20.
[19] 屈红军, 蒲仁海, 陈硕, 等.相-势耦合控制鄂尔多斯盆地中生界石油聚集.石油与天然气地质, 2019, 40(4):752-762. QU H J, PU R H, CHEN S, et al. Controls of facies-potential coupling on oil accumulation in the Mesozoic Ordos Basin. Oil & Gas Geology, 2019, 40(4):752-762.
[20] 李相博, 姚泾利, 刘化清, 等.鄂尔多斯盆地中生界低幅度隆起构造成因类型及其对油气分布的控制作用. 现代地质, 2013, 27(4):755-764. LI X B, YAO J L, LIU H Q, et al. Tectonic origin type of the low amplitude uplifted structure and its role in the control of the distribution of oil and gas in Mesozoic,the Ordos Basin. Geoscience, 2013, 27(4):755-764.
[21] FOLK R L.Petrology of sedimentary rocks. Austin, TX:Hemphill Publishing Co.1974, 184.
[22] 胡宗全. 鄂尔多斯盆地上古生界砂岩储层方解石胶结物特征.石油学报, 2003, 24(4):40-43. HU Z Q. Calcite cements in Upper Paleozoic sand reservoir of Ordos Basin. Acta Petroleum Sinica.2003, 24(4):40-43.
[23] 冯弋秦, 赵俊兴, 王冰, 等.定北地区盒一段致密砂岩储层"四性"关系及有效下限, 成都理工大学学报(自然科学版), 2020, 47(2):141-149. FENG Y Q, ZHAO J X, WANG B, et al. The "four-property" relation and effective lower limit of tight sandstone reservoirs of the first Member of Lower Shihezi Formation in Dingbei Block. Journal of Chengdu University of Technology(Science & Technology Edition), 2020, 47(2):141-149.
[24] 宋子齐, 程国建, 王静, 等.特低渗透油层有效厚度确定方法研究.石油学报, 2006(6):103-106. SONG Z Q, CHENG G J, WANG J, et al. Determination of effective thickness for oil reservoirs with extra-low permeability. Acta Petrolei Sinica, 2006(6):103-106.
[25] 郑浚茂, 庞明.碎屑储集岩的成岩作用研究.武汉:中国地质大学出版社, 1989. ZHENG J M, PANG M. Study on clastic diagenesis. Wuhan:China University of Geosciences Press, 1989.
[26] 王继伟, 朱玉双, 饶欣久, 等.鄂尔多斯盆地胡尖山地区长61致密砂岩储层成岩特征与孔隙度定量恢复. 岩性油气藏, 2020, 32(3):34-43. WANG J W, ZHU Y S, RAO X J, et al. Diagenetic characteristics and quantitative porosity restoration of Chang 61 tight sandstone reservoir in Hujianshan area,Ordos Basin. Lithologic Reservoirs, 2020, 32(3):34-43.
[27] 李红, 柳益群, 刘林玉. 鄂尔多斯盆地西峰油田延长组长81低渗透储层成岩作用.石油与天然气地质, 2006(2):209-217. LI H, LIU Y Q, LIU L Y. Diagenesis of Chang 81 reservoir with low permeability in Xifeng Oilfield,Ordos Basin. Oil & Gas Geology, 2006(2):209-217.
[28] 张霞, 林春明, 陈召佑.鄂尔多斯盆地镇泾区块上三叠统延长组砂岩中绿泥石矿物特征.地质学报, 2011, 85(10):1659-1671. ZHANG X, LIN C M, CHEN Z Y. characteristics of Chlorite Minerals from Upper Triassic Yanchang Formation in the Zhenting area,Ordos Basin. Acta Geological Sinica, 2011, 85(10):1659-1671.
[29] 朱世发, 徐黎明, 朱筱敏, 等.鄂尔多斯盆地陇东地区延长组长4+5致密砂岩储层成岩作用特征. 岩性油气藏, 2014, 26(3):22-27. ZHU S F, XU L M, ZHU X M, et al. Diagenetic characteristics of tight sandstone of Chang 4+5 reservoir in Longdong area, Ordos Basin. Lithologic Reservoirs, 2014, 26(3):22-27.
[30] 周晓峰, 丁黎, 杨卫国, 宋鹏, 等.鄂尔多斯盆地延长组长8油层组砂岩中绿泥石膜的生长模式. 岩性油气藏, 2017, 29(4):1-10. ZHOU X F, DING L, YANG W G, et al. Growth pattern of chlorite film in Chang 8 sandstone of Yanchang Formation in Ordos Basin. Lithologic Reservoirs, 2017, 29(4):1-10.
[31] 李阳, 李树同, 牟炜卫, 等.鄂尔多斯盆地姬塬地区长6段致密砂岩中黏土矿物对储层物性的影响. 天然气地球科学, 2017, 28(7):1043-1053. LI Y, LI S T, MOU W W, et al. Influences of clay minerals on physical properties of Chang 6 tight sandstone reservoir in Jiyuan area, Ordos Basin. Natural Gas Geoscience, 2017, 28(7):1043-1053.
[32] 张守鹏, 方正伟.低渗透砂岩储集层渗透性伤害的微观机理与改造技术:以济阳坳陷胜利油田为例. 石油勘探与开发, 2020, 47(2):349-356. ZHANG S P, FANG Z W. Permeability damage micro-mechanisms and stimulation of low-permeability sandstone reservoirs:A case study from Jiyang Depression,Bohai Bay Basin, China. Petroleum Exploration and Development, 2020, 47(2):349-356.
[33] BAKER J C, UWINS P J R, MACKINNON I D R. ESEM study of authigenic chlorite acid sensitivity in sandstone reservoirs. Journal of Petroleum Science & Engineering, 1993, 8(4):269-277.
[34] 杨晓萍, 赵文智, 邹才能, 等.低渗透储层成因机理及优质储层形成与分布.石油学报, 2007(4):57-61. YANG X P, ZHAO W Z, ZOU C N, et al. Origin of low-permeability reservoir and distribution of favorable reservoir. Acta Petrolei Sinica, 2007(4):57-61.
[35] SURDAM R. The chemistry of secondary porosity.AAPG memoir 37, 1984:127-149.
[36] 李长喜, 石玉江, 周灿灿, 等.淡水钻井液侵入低幅度-低电阻率油层评价方法.石油勘探与开发, 2010, 37(6):696-702. LI C X, SHI Y J, ZHOU C C, et al. Evaluation of low amplitude and low resistivity pay zones under the fresh drilling mud invasion condition. Petroleum Exploration and Development, 2010, 37(6):696-702.
[37] 董杨坤.鄂尔多斯盆地任山地区长2油层组低阻油层成因研究.西安:西北大学, 2019. DONG Y K. The origin of Chang 2 reservoir group low-resistivity oil-bearing layers in Renshan area in Ordos Basin. Xi'an:Northwest University,2019
[38] 斯扬, 牛小兵, 梁晓伟, 等.鄂尔多斯盆地姬塬地区长2油层低阻主控因素及有效识别方法研究. 地质与勘探, 2019, 55(3):882-890. SI Y, NIU X B, LIANG X W, et al. Main controlling factors of low resistivity and effective identification methods for the Chang 2 reservoir in the Jiyuan area,Ordos Basin. Geology and Exploration, 2019, 55(3):882-890.
[39] 欧阳健, 修立军, 石玉江, 等.测井低对比度油层饱和度评价与分布研究及其应用.中国石油勘探, 2009, 14(1):38-52. OUYANY J, XIU L J, SHI Y J, et al. Saturation evaluation and distribution of low-contrast oil reservoirs. China Petroleum Exploration, 2009, 14(1):38-52.
[1] YAN Xueying, SANG Qin, JIANG Yuqiang, FANG Rui, ZHOU Yadong, LIU Xue, LI Shun, YUAN Yongliang. Main controlling factors for the high yield of tight oil in the Jurassic Da’anzhai Section in the western area of Gongshanmiao, Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(6): 98-109.
[2] Guan Yunwen, Su Siyu, Pu Renhai, Wang Qichao, Yan Sujie, Zhang Zhongpei, Chen Shuo, Liang Dongge. Palaeozoic gas reservoir-forming conditions and main controlling factors in Xunyi area，southern Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(6): 77-88.
[3] YI Zhenli, SHI Fang, YIN Taiju, LI Bin, LI Meng, LIU Liu, WANG Zhukun, YU Ye. Provenance transformation and sedimentary filling response of Mesozoic in Halahatang-Hade area，Tarim Basin [J]. Lithologic Reservoirs, 2024, 36(5): 56-66.
[4] WANG Zixin, LIU Guangdi, YUAN Guangjie, YANG Henglin, FU Li, WANG Yuan, CHEN Gang, ZHANG Heng. Characteristics and reservoir control of source rocks of Triassic Chang 7 member in Qingcheng area，Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(5): 133-144.
[5] YIN Hu, QU Hongjun, SUN Xiaohan, YANG Bo, ZHANG Leigang, ZHU Rongxing. Characteristics of deep-water deposits and evolution law of Triassic Chang 7 reservoir in southeastern Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(5): 145-155.
[6] MOU Feisheng, YIN Xiangdong, HU Cong, ZHANG Haifeng, CHEN Shijia, DAI Linfeng, LU Yifan. Distribution characteristics and controlling factors of tight oil of Triassic Chang 7 member in northern Shaanxi area，Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(4): 71-84.
[7] DUAN Yifei, ZHAO Weiwei, YANG Tianxiang, LI Fukang, LI Hui, WANG Jianan, LIU Yuchen. Source-reservoir characteristics and accumulation rules of shale gas of Permian Shanxi Formation in Yan'an area, Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(3): 72-83.
[8] WANG Hongbo, ZHANG Lei, CAO Qian, ZHANG Jianwu, PAN Xing. Sedimentary model of fluvial fan of Permian He-8 member in Ordos Basin and its exploration significance [J]. Lithologic Reservoirs, 2024, 36(3): 117-126.
[9] CAO Jiangjun, WANG Xi, WANG Liuwei, LI Cheng, SHI Jian, CHEN Zhaobing. Characteristics and main controlling factors of interbedded shale oil reservoirs of Triassic Chang 7 member in Heshui area，Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(3): 158-171.
[10] LI Qihui, REN Dazhong, NING Bo, SUN Zhen, LI Tian, WAN Cixuan, YANG Fu, ZHANG Shiming. Micro-pore structure characteristics of coal seams of Jurassic Yan’an Formation in Shenmu area，Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(2): 76-88.
[11] LEI Tao, MO Songyu, LI Xiaohui, JIANG Nan, ZHU Chaobin, WANG Qiao, QU Xuejiao, WANG Jia. Sandbody superimposition patterns and oil and gas exploration significance of Permian Shanxi Formation in Daniudi gas field，Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(2): 147-159.
[12] ZHAI Yonghe, HE Dengfa, KAI Baize. Tectonic-depositional environment and prototype basin evolution of Middle-Late Permian in Ordos Basin and adjacent areas [J]. Lithologic Reservoirs, 2024, 36(1): 32-44.
[13] LONG Shengfang, HOU Yunchao, YANG Chao, GUO Yixuan, ZHANG Jie, ZENG Yali, GAO Nan, LI Shanghong. Sequence stratigraphy and evolution of Triassic Chang 7 to Chang 3 mebers in Qingcheng area，southwestern Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(1): 145-156.
[14] DU Jiangmin, CUI Zihao, JIA Zhiwei, ZHANG Yi, NIE Wancai, LONG Pengyu, LIU Boyuan. Sedimentary characteristics of Ma 55 sub-member of Ordovician Majiagou Formation in Sulige area，Ordos Basin [J]. Lithologic Reservoirs, 2023, 35(5): 37-48.
[15] LI Shengqian, ZENG Jianhui, LIU Yazhou, LI Miao, JIAO Panpan. Reservoir diagenesis and pore evolution of Paleogene Pinghu Formation in Kongqueting area of Xihu Sag，East China Sea Basin [J]. Lithologic Reservoirs, 2023, 35(5): 49-61.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] . [J]. Lithologic Reservoirs, 2022, 34(2): 0 .
[2] LI Zaiguang,LI Lin. Automatic mapping based on well data[J]. Lithologic Reservoirs, 2007, 19(2): 84 -89 .
[3] CHENG Yuhong,GUO Yanru,ZHENG Ximing,FANG Naizhen,MA Yuhu. The interpretation method and application effect determined by multiple seismic and logging factors[J]. Lithologic Reservoirs, 2007, 19(2): 97 -101 .
[4] LIU Juntian,JIN Zhenjia,LI Zaiguang,TAN Xinping,GUO Lin,WANG Bo,LIU Yuxiang. Controlling factors for lithologic hydrocarbon reservoirs and petroleum prospecting target in Xiaocaohu area , Taibei Sag[J]. Lithologic Reservoirs, 2007, 19(3): 44 -47 .
[5] SHANG Changliang, FU Shouxian. Application of 3D seismic survey in loess tableland[J]. Lithologic Reservoirs, 2007, 19(3): 106 -110 .
[6] WANG Changyong, ZHENG Rongcai, WANG Jianguo, CAO Shaofang, Xiao Mingguo. Sedimentary characteristics and evolution of Badaowan Formation of Lower Jurassic in northwest margin of Junggar Basin[J]. Lithologic Reservoirs, 2008, 20(2): 37 -42 .
[7] WANG Ke1 LIU Xianyang, ZHAO Weiwei, SONG Jianghai, SHI Zhenfeng, XIANG Hui. Char acter istics and geological significance of seismites of Paleogene in Yangxin Subsag of J iyang Depr ession[J]. Lithologic Reservoirs, 2008, 20(2): 54 -59 .
[8] SUN Hongbin, ZHANG Fenglian. Structural-sedimentary evolution char acter istics of Paleogene in Liaohe Depr ession[J]. Lithologic Reservoirs, 2008, 20(2): 60 -65 .
[9] LI Chuanliang. Can uplift r esult in abnormal high pr essur e in formation?[J]. Lithologic Reservoirs, 2008, 20(2): 124 -126 .
[10] WEI Qinlian，ZHENG Rongcai，XIAO Ling，MA Guofu，DOU Shijie，TIAN Baozhong. Study on horizontal heterogeneity in Serie Inferiere of Triassic in 438b block , Algeria[J]. Lithologic Reservoirs, 2009, 21(2): 24 -28 .
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn