陆梁油田陆9井区呼一段低含油饱和度油藏特点及成因
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摘要
借助地震、试油、测井和岩心等资料,对陆梁油田陆9井区呼一段低含油饱和度油藏特征展开系统分析。结果表明,油藏具有低幅度、多层系叠合、一砂一藏和边底水活跃的特点,其分布受到构造和岩性的控制,普遍存在较宽的油水过渡带。低含油饱和度油藏成藏位置远离生烃中心,成藏过程较为复杂,导致圈闭内油水未能充分分异,是造成油藏含油饱和度低的重要原因。此外,较低的构造幅度、黏土矿物在储集层中的广泛分布以及储集层内高束缚水饱和度等因素也是导致油气对孔隙水驱替不充分、油藏含油饱和度低的原因。
Based on the data of seismic, formation test, logging and core analysis, the paper systematically analyzes the characteristics ofthe low oil-saturation reservoir in the first member of Hutubihe formation in Wellblock Lu-9, Luliang oilfield. The results show that the res-ervoir is characterized by low amplitude, multiple stratigraphic series, one reservoir in one sand body and active edge and bottom water.The reservoir distribution is controlled by structure and lithology and relatively wide oil-water transition zone generally exists in the reser-voir. The low oil-saturation reservoir formed far away from hydrocarbon generating center with complicated accumulation process, leadingto insufficient differentiation of oil and water in traps, which is the main reason for the low oil saturation of the reservoir. Additionally, lowstructure amplitude, wide distribution of clay minerals and high saturation of bound water in the reservoir are the reasons resulting in insuf-ficient pore water displacement by hydrocarbons and low oil saturation of the reservoir.
Based on the data of seismic, formation test, logging and core analysis, the paper systematically analyzes the characteristics ofthe low oil-saturation reservoir in the first member of Hutubihe formation in Wellblock Lu-9, Luliang oilfield. The results show that the res-ervoir is characterized by low amplitude, multiple stratigraphic series, one reservoir in one sand body and active edge and bottom water.The reservoir distribution is controlled by structure and lithology and relatively wide oil-water transition zone generally exists in the reser-voir. The low oil-saturation reservoir formed far away from hydrocarbon generating center with complicated accumulation process, leadingto insufficient differentiation of oil and water in traps, which is the main reason for the low oil saturation of the reservoir. Additionally, lowstructure amplitude, wide distribution of clay minerals and high saturation of bound water in the reservoir are the reasons resulting in insuf-ficient pore water displacement by hydrocarbons and low oil saturation of the reservoir.
引文
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[17]刘超威,陈世加,姚宜同,等.鄂尔多斯盆地姬塬地区长2油藏低含油饱和度成因[J].断块油气田,2015,22(3):305-308.LIU Chaowei,CHEN Shijia,YAO Yitong,et al.Causes of low oil saturation for Chang 2 reservoir in Jiyuan area of Ordos basin[J].Fault-Block Oil&Gas Field,2015,22(3):305-308.
[18]李福垲.砂岩油层中粘土矿物对储层性质的影响[J].石油勘探与开发,1980,7(6):67-79.LI Fukai.The effects of clay minerals in sandstone on reservoir properties[J].Petroleum Exploration and Development,1980,7(6):67-79.
[19]唐伏平,唐海,蒋炳金,等.陆梁薄层底水油藏产水规律[J].新疆石油地质,2006,27(6):721-723.TANG Fuping,TANG Hai,JIANG Bingjin,et al.Analysis of water-yielding pattern of thin and bottom water reservoir in Luliang oilfield,Junggar basin[J].Xinjiang Petroleum Geology,2006,27(6):721-723.
[2]欧阳健,王贵文.油气藏中的测井储层描述[J].石油学报,1994,15(增刊):116-123.OUYANG Jian,WANG Guiwen.The reservoir description though well-log interpretation in oil and gas pool[J].Acta Petrolei Sinica,1994,15(Supp.):116-123.
[3]SKELT C.A relationship between height,saturation,permeability and porosity[C].58thEAEG Conference and Eshibition,1996.
[4]施冬,程启贵,张荣彬,等.靖安油田储层“上水下油”现象分析[J].江汉石油学院学报,2000,22(3):33-36.SHI Dong,CHENG Qigui,ZHANG Rongbin,et al.Study of phenomenon of“water-up and oil-down”in Jing'an oilfield[J].Journal of Jianghan Petroleum Institute,2000,22(3):33-36.
[5]杨仁林,刘知国.束缚水饱和度与储层流体性质的判别[J].天然气工业,2003,23(增刊):46-48.YANG Renlin,LIU Zhiguo.Application of irreducible water saturation to identifying reservoir fluid nature[J].Natural Gas Industry,2003,23(Supp.):46-48.
[6]MODE A W,ANYIAM O A,AGHARA I K.Identification and petrophysical evaluation of thinly bedded low-resistivity pay reservoir in the Niger delta[J].Arabian Journal of Geosciences,2014,8(4):1-9.
[7]廖健德,王绪龙,张明,等.陆梁油田低阻油层成因及其识别[J].新疆地质,2003,21(3):325-328.LIAO Jiande,WANG Xulong,ZHANG Ming,et al.Origin and identification of low resistivity reservoirs in Luliang oil field,Junggar basin[J].Xinjiang Geology,2003,21(3):325-328.
[8]张艳敏.陆梁隆起低阻油气层成藏特征[J].内江科技,2013,34(5):75.ZHANG Yanmin.Formation features of low-resistivity reservoir in Luliang uplift[J].Neijiang Technology,2013,34(5):75.
[9]解宏伟.准噶尔盆地低阻油气层成因及识别[J].新疆石油地质,2008,29(2):219-221.XIE Hongwei.Identification and origin of low-resistivity oil-gas layer s in Junggar basin[J].Xinjiang Petroleum Geology,2008,29(2):219-221.
[10]查明,陈中红,张年富,等.准噶尔盆地陆梁地区水化学特征与油气运聚[J].地质科学,2003,38(3):315-322.ZHA Ming,CHEN Zhonghong,ZHANG Nianfu,et al.Hydrochemical conditions and hydrocarbon accumulation in the Luliang uplift,Junggar basin[J].Chinese Journal of Geology,2003,38(3):315-322.
[11]张会勇,王延杰,夏兰,等.陆梁油田呼图壁河组油藏开采技术界限[J].新疆石油地质,2005,26(1):90-92.ZHANG Huiyong,WANG Yanjie,XIA Lan,et al.The technical limits for recovery of Hutubihe reservoir in Luliang oilfield[J].Xinjiang Petroleum Geology,2005,26(1):90-92.
[12]王绪龙,杨海波,康素芳,等.准噶尔盆地陆梁隆起陆9井油源与成藏分析[J].新疆石油地质,2001,22(3):213-216.WANG Xulong,YANG Haibo,KANG Sufang,et al.Analysis on oil sources and reservoir formation of well Lu 9 in Luliang uplift in Junggar basin[J].Xinjiang Petroleum Geology,2001,22(3):213-216.
[13]吴晓智,丁靖,夏兰,等.准噶尔盆地陆梁隆起带构造演化特征与油气聚集[J].新疆石油地质,2012,33(3):277-279.WU Xiaozhi,DING Jing,XIA Lan,et al.Structural evolution and hydrocarbon accumulation in Luliang uplift in Junggar basin[J].Xinjiang Petroleum Geology,2012,33(3):277-279.
[14]季敏.准噶尔盆地腹部地区头屯河组隐蔽油气藏成藏机制研究[D].山东青岛:中国石油大学,2009.JI Min.The research on accumulation mechanisms of subtle reservoirs in Toutunhe formation,central Jungger basin[D].Qingdao,Shandong:China University of Petroleum,2009.
[15]毛志强.非均质储层夹层控油作用初论——非均质储层油气分布规律及测井响应特征[J].地球科学——中国地质大学学报,2003,28(2):196-200.MAO Zhiqiang.Controlling effects of poor permeable layers upon accumulation and distribution of hydrocarbon in inhomogeneous sandstone reservoir[J].Earth Science—Journal of China University of Geosciences,2003,28(2):196-200.
[16]李明诚.石油与天然气运移[M].北京:石油工业出版社,2013.LI Mingcheng.Migration of petroleum and natural gas[M].Beijing:Petroleum Industry Press,2013.
[17]刘超威,陈世加,姚宜同,等.鄂尔多斯盆地姬塬地区长2油藏低含油饱和度成因[J].断块油气田,2015,22(3):305-308.LIU Chaowei,CHEN Shijia,YAO Yitong,et al.Causes of low oil saturation for Chang 2 reservoir in Jiyuan area of Ordos basin[J].Fault-Block Oil&Gas Field,2015,22(3):305-308.
[18]李福垲.砂岩油层中粘土矿物对储层性质的影响[J].石油勘探与开发,1980,7(6):67-79.LI Fukai.The effects of clay minerals in sandstone on reservoir properties[J].Petroleum Exploration and Development,1980,7(6):67-79.
[19]唐伏平,唐海,蒋炳金,等.陆梁薄层底水油藏产水规律[J].新疆石油地质,2006,27(6):721-723.TANG Fuping,TANG Hai,JIANG Bingjin,et al.Analysis of water-yielding pattern of thin and bottom water reservoir in Luliang oilfield,Junggar basin[J].Xinjiang Petroleum Geology,2006,27(6):721-723.