收稿日期: 2010-09-07
修回日期: 2012-05-20
网络出版日期: 2012-06-10
基金资助
国家科技重大专项（编号：2011ZX05000-01-06）;国家重点基础研究发展规划（“973”）项目（编号：2011CB201104）；2012年中国科学院西部博士基金项目联合资助.
Characteristics and Main Controlling Factors of Sand-Gravel Stone Reservoir of Permian Fengcheng Formation in Kebai Area,Northwest Junggar Basin
Received date: 2010-09-07
Revised date: 2012-05-20
Online published: 2012-06-10
基于准噶尔盆地西北缘克百地区30余口井的岩心、录井及测井数据，运用显微镜、扫描电镜等分析手段，通过对砂砾岩储层的岩石学、沉积学进行分析，认为准噶尔盆地西北缘克百地区二叠系风城组砂砾岩以岩屑砂岩和长石岩屑砂岩为主，沉积相以扇三角洲相和冲积扇相为主，其中以扇三角洲前缘亚相水下分流河道微相储层物性最好，可提供最有利的油气储集空间，扇三角洲平原亚相分流河道微相储层物性次之，亦可作为储层的有利区域。经过对研究区成岩机理研究认为，影响研究区砂砾岩储层的主要成岩作用为压实作用、胶结作用和溶解作用。压实作用为破坏性的成岩作用，使该区砂砾岩储层的孔隙度和渗透率减少，4 000m以深孔隙度小于10%、渗透率低于0.1×10-3μm2；胶结作用具有正反2个方面的成岩作用，既可通过胶结减少岩石的孔隙，又可通过抑制压实作用的进一步进行从而保持颗粒间的距离；溶解作用为建设性的成岩作用，尤其是深部储层中具有强烈的压实压溶作用，使油气的储集和运移变的更加有利。
鲁新川，孔玉华，常娟，史基安，张顺存 . 准噶尔盆地西北缘克百地区二叠系风城组砂砾岩储层特征及主控因素分析[J]. 天然气地球科学, 2012 , 23(3) : 474 -481 . DOI: 10.11764/j.issn.1672-1926.2012.03.474
On the basis of core and log data from more than 30 wells in Kebai area of northwest Junggar basin,this paper analyses the lithology and sedimentology of sand-gravel in Kebai area by means of microscope and scanning electronic microscope.Results show that the sand\|gravel of Permian Fengcheng Formation in the study area mainly consists of lithic sandstone and feldspar lithic sandstone,and the sedimentary facies are dominated by fan delta and alluvial fan.The fan delta frontier subfacie underwater distributary channel microfacie with the best petrophysical property can provide favorable reservoir space,followed by the fan deltaplain subfacie underwater distributary channel microfacie.Diageneses in study area mainly comprise compaction,cementation and dissolution.Compaction is destructive to porosity and permeability,which are less than 10% and 1×10-3μm2 under 4000m.Cementation,not only destructive but also constructive,can inhibit the compaction to keep the distance among particles.The space dissolved can form channel for hydrocarbon accumulation and migration.Dissolution,especially in deep reservoir with a strong pressure,makes the migration easy.
［1］Zhang Yijie,Qi Xuefeng,Cheng Xiansheng,et al.Approach to sedimentary environment of late Carboniferous-Permian in Junggar basin［J］.Xinjiang Petroleum Geology,2007,28(6):673-675.［张义杰,齐雪峰,程显胜,等.准噶尔盆地晚石炭世和二叠纪沉积环境［J］.新疆石油地质,2007,28(6):673-675.］
［2］Zhao Yuguang.The Permian sedimentary facies model in the northwestern margin of Junggar basin［J］.Xinjiang Petroleum Geology,1999,20(5):397-401.［赵玉光.准噶尔盆地西北缘二叠纪沉积岩相模式［J］.新疆石油地质,1999,20(5):397-401.］
[JP]
［3］Zhu Shuiqiao,Xiao Chunlin,Rao Zheng,et al.Fluvial-dominated fan delta sedimentation of the lower Urho Formation of upper Permian in the 8tharea of Karamay oilfield,Xinjiang autonomous region［J］.Journal of Palaeogeography,2005,7(4):471-482.［朱水桥,肖春林,饶政,等.新疆克拉玛依油田八区上二叠统下乌尔禾组河控型扇三角洲沉积［J］.古地理学报,2005,7(4):471-482.］
［4］Zou Caineng,Hou Lianhua,Kuang Lichun,et al.Genetic mechanism of diagenesis-reservoir facies of the fan-controlled Permo-Triassic inthe western marginal area,Junggar basin［J］.Chinese Journal of Geology,2007,42(3):587-601.［邹才能,侯连华,匡立春,等.准噶尔盆地西缘二叠—三叠系扇控成岩储集相成因机理［J］.地质科学,2007,42(3):587-601.］
［5］Qin Liming,Zhang Zhihuan,Zhu Lei,et al.Productions of closed system experiments for middle Permian source rock in southern Junggar basin［J］.Natural Gas Geoscience,2011,22(5):860-865.［秦黎明,张枝焕,朱雷,等.准噶尔盆地南缘中二叠统烃源岩封闭体系生烃热模拟实验分析［J］.天然气地球科学,2011,22(5):860-865.］
［6］Shi Ji′an,He Zhou,Ding Chao,et al.Sedimentary characteristic and model of Permian System in Ke-Bai area in the northwestern margin of Jungarbasin［J］.Acta Sedimentologica Sinica,2010,28(3):692-698.［史基安,何周,丁超,等.准噶尔盆地西北缘克百地区二叠系沉积特征及沉积模式［J］.沉积学报,2010,28(3):692-698.］
［7］Zhang Shuncun,Chen Lihua,Zhou Xinyan,et al.Sedimentarymodel of the Permian sandy conglomerate in the footwall of the Kebai fault,the Junggarbasin［J］.Oil & Gas Geology,2009,30(6):740-746.［张顺存,陈丽华,周新艳,等.准噶尔盆地克百断裂下盘二叠系砂砾岩的沉积模式［J］.石油与天然气地质,2009,30(6):740-746.］
［8］Zhang Shuncun,Liu Zhenyu,Liu Wei,et al.Diagenesis facies of Permian sandy conglomerate reservoir in footwall of Kebai fault in northwesternmargin of Junggar basin［J］.Lithologyic Reservoirs,2010,22(4):43-51.［张顺存,刘振宇,刘巍,等.准噶尔盆地西北缘克－百断裂下盘二叠系砂砾岩储层成岩相研究［J］.岩性油气藏,2010,22(4):43-51.］
［9］Jia Fanjian,Yao Weijiang,Liang Zeliang,et al.Diagenic feature and evolution of reservoir pore of Permian reservoir under the Kebai fault inthe northwestern margin,Junggar basin［J］.Natural Gas Geosciences,2010,21(3):458-463.［贾凡建,姚卫江,梁则亮,等.准噶尔盆地西北缘克百断裂下盘二叠系储层成岩作用特征及其孔隙演化［J］.天然气地球科学,2010,21(3):458-463.］
［10］Zhao Mengjun,Wang Xulong,Da Jiang,et al.Genetic origin of natural gas and its filling history in Dinan uplift-Wucaiwan of Junggar basin［J］.NaturalGas Geoscience,2011,22(4):595-601.［赵孟军,王绪龙,达江,等.准噶尔盆地滴南凸起—五彩湾地区天然气成因与成藏过程分析［J］.天然气地球科学,2011,22(4):595-601.］
［11］Zhang Houfu,Fang Chaoliang,Gao Xianzhi,et al.Petroleum Geology［M］.Beijing:Petroleum Industrial Press,2003.［张厚福,方朝亮,高先志,等.石油地质学［M］.北京:石油工业出版社,2003.］
［12］Dennis D.A new approach for reservoir characterization［J］.Journal of Petroeum Technology,2003,55:62-63.
［13］Shanmugam G.Secondary porosity in sandstones:Basic contribution of Chepikov and Savkevich［J］.AAPG Bulletin,1984,68:106-107.
［14］Dewey M W.Evaluating seals for hydrocarbon accumulations［J］.AAPG Bulletin,1984,68:1752-1763.
［15］Smith D A.Theoretical consideration of sealing and non-sealing faults［J］.AAPG Bulletin,1966,50:363-374.
［16］Xue Lianhua,Shi Jian,Jin Huijuan.Study of controlling mechanism of carbonate cementation on porosity evolution in lower Tertiary sandstones of theLiaohe basin［J］.Acta Sedimentologica Sinica,1996,14(2):102-109.［薛莲花,史基安,晋慧娟.辽河盆地水河街组砂岩中碳酸盐胶结作用对孔隙演化控制机理研究［J］.沉积学报,1996,14(2):102-109.］
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