用户名: 密码: 验证码:
济阳坳陷石炭—二叠系储层特征与有利储层预测
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
近年来的勘探实践表明,济阳坳陷石炭—二叠系具有良好的油气勘探前景。本文通过对济阳坳陷石炭—二叠系沉积相、储层的岩石学特征、微观孔隙结构特征、成岩作用及储层的影响因素等进行研究和评价,指出了有利的勘探目标区。
     济阳坳陷石炭—二叠系发育陆表海滨岸环境、海陆过渡环境和陆相环境等3类沉积环境;台地—泻湖沉积体系、障壁岛—泻湖—潮坪复合沉积体系、三角洲沉积体系以及河流—湖泊复合沉积体系等4种沉积体系;泻湖相、台地相、潮坪相、障壁岛相、浅水三角洲相、曲流河相和浅水湖泊相等7种沉积相类型。
     通过对比发现砂岩是该地区石炭—二叠系可以作为储层的有利岩性,主要分布在山西组、下石盒子组和上石盒子组,其中山西组的岩性主要为中细粒含长石石英砂岩、含岩屑石英砂岩,下石盒子组主要为中粗粒含长石、岩屑石英砂岩,上石盒子组主要为粗砂岩、含砾粗砂岩,总体表现为较高的成份和结构成熟度。成岩作用类型主要有压实作用、胶结作用、交代作用、溶蚀作用等。上石盒子组、下石盒子组处于中成岩A期-中成岩B期,而山西组、太原组和本溪组处于中成岩B期-晚成岩阶段。自上而下原生孔隙减少,次生孔隙及裂缝增加。物性资料及压汞资料表明,孔喉半径小、连通性差、渗流能力弱是砂体储层孔喉结构的基本特征,大多属于低孔低渗—特低孔特低渗型储层。与山西组相比,下石盒子组和上石盒子组砂体储层具有孔喉分布偏粗歪度、渗流能力有所增强、次生溶蚀孔隙更为发育、排驱压力大幅降低的特点。储层物性宏观上受构造作用的控制,纵向上主要受成岩作用的影响,平面上主要受沉积作用影响,即沉积主水道的分布特征。在此基础上,建立了储层评价分类标准并对主要层位进行了储层评价。在综合分析沉积条件、成岩演化和构造作用对储层物性影响的基础上,预测出孤北、高青、车西、义东、花沟及判参镇等地区为有利勘探区,邵家、王家岗和惠民南坡等为较有利勘探区。
Experience of exploration in recent years reveals that Permo-Carboniferous formation in Jiyang depression has good oil and gas exploring promising. Favorable target areas for exploration are put forward through researches and evaluation of sedimentary facies, petrologic features, diagenesis, characteristics of microscopic structure of pores, and factors influencing reservoirs of Carboniferous- Permian System in Jiyang depression.
     There are three sedimentary environments including epicontinental littoral environment , continental-marine environment and continental environment ;. four sedimentary systems including lagoon-plateau sedimentary system, barrier land-tidal flat-lagoon sedimentary system, shallow delta sedimentary system and fluvial-lake sedimentary system; seven sedimentary faces including lagoon, platform, tidal flat, barrier island, shallow delta, meandering river and shallow lake occurred in Carboniferous- Permian System of Jiyang depression.
     It can be found that the sandstone can be considered as the available reservoir of Carboniferous-Permian System in this area according to the compare of all kinds of stone. The sandstone reservoir mainly distributes in Shanxi, Xiashihezi and Shangshihezi formation. The reservoirs’lithology of the Shanxi formation is mainly middle-fine grained feldspathic quartzose sandstone, lithic quartzose sandstone ; that of the Xiashihezi formation is middle-coarse grained feldspathic and lithic quartzose sandstone ; and that of the Shangshihezi formation is gritstone and pebbly gritstone. The composition maturity and the texture maturity of clastic reservoir are both high. The main diagenesis types include compaction, cementation, metasomatism, and dissolution. The Diagenetic stage of Shangshihezi, Xiashihezi Formation is from the mesodiagenetic stage A to the mesodiagenetic stage B, that of Shanxi, Taiyuan, Benxi Formation is from the mesodiagenetic stage B to the telodiagenetic stage. Primary pores are decreasing whereas secondary pores and fractures are increasing downward. Physical property and mercury penetration indicate that the reservoir pore throat structure characterized by mini pore throat, poor sorting, poor connectedness and poor infiltrating ability, and the reservoir sand bodies belong to low porosity and permeability to extremely low porosity and permeability. Comparing to Shanxi Formation, reservoirs of Shangshihezi and Xiashihezi Formation have the features of skewing bold pore throat size distribution, more secondary dissolution pores, improving infiltrating ability and lower displacement pressure. The macroscopic element , which controls the reservoir’s extent , is tectonism. Diagenesis controls the changing of reservoir character on verticality, and sedimentary facies on plane, i.e. the characteristics of main fluvial channels’distributions. Considering these controlling factors, the evolution standard of reservoir is established, and the primary formations are evaluated. On the basis of reservoir physical properties affected by sedimentary condition, diagenetic evolution and tectonic process, it can be forecasted that the most favorable exploration targets are the west of Gubei, Gaoqing ,the west of Chezhen, the east of Yihezhuang, Huagou and Pancanzhen areas and the secondly favorable exploration targets are Shaojia, Wangjiagang and the south of Huimin sag areas.
引文
[1]翟光明,何文渊.渤海湾盆地勘探策略探讨[J].石油勘探与开发,2003,30(6):1-4.
    [2]王兆云,何海清,程克明.华北区古生界原生油气藏勘探前景.石油学报, 1999, 20 (2) : 1~6
    [3]谯汉生,方朝亮,牛嘉玉,等.渤海湾盆地深层石油地质[M].北京:石油工业出版社,2002:66-98
    [4]何海清,王兆云,韩品龙.渤海湾盆地深层油气藏类型及油气分布规律[J].石油勘探与开发,1998,25(3): 6-12
    [5]钱凯,吴世祥,姜正龙,等.华北煤成气成藏条件与勘探目标预测[J].天然气地球科学, 1999,10(3/4): 35-42
    [6]罗明高黄键全,油气聚集微观定量模型,沉积学报,2000,18 (1): 151~156
    [7]汪增萌等,辽东福州晚中石炭世地层简论华北地台中石炭统的划分.现代地质, 1989, 3(2): 107~113
    [8]汪增萌,尚楚雄.阴山南麓的两个陆相石炭系剖面,煤炭学报, 1986, 3(2): 37~46
    [9]刘焕杰,潮坪成煤环境初论-三汇坝晚二叠世龙潭组含煤建造沉积环境模式.中国矿业大学学报,1982, 2: 34~41
    [10]刘焕杰等,华北石炭纪含煤建造的陆表海堡岛体系特点及其事件沉积.沉积学报, 1987, 5(3): 51~55
    [11]刘焕杰等,准格尔煤田含煤建造岩相古地理学研究.地质出版社,1991
    [12]刘焕杰,桑树勋等,成煤环境的比较沉积学研究.徐州:中国矿业大学出版社,1996
    [13]陈世悦,徐凤银,刘焕杰,华北晚古生代层序地层与聚煤规律.东营:石油大学出版社,2000, 18~36, 99~112, 132~145
    [14]曹忠祥,刘华,王玉林,济阳坳陷石炭-二叠系沉积与层序地层分析,山东科技大学学报, 2002, 21(2): 68~72
    [15]王玉林,济阳石炭-二叠纪沉积与层序地层分析,河南石油, 2003, 17(5): 1~3
    [16]刘华.微量元素分析在含煤地层层序划分中的应用.山东科技大学学报, 2004, 23 (1): 12~16
    [17]李明娟,张洪年,胡宗全等,济阳坳陷石炭-二叠纪层序地层研究,石油与天然气地质, 2004, 25(1): 100~106
    [18]李明娟,郑和荣,张海清,济阳坳陷晚古生代岩相古地理,石油地质与工程, 2006, 20(5): 6~9
    [19]李明娟,张洪年,胡宗全等,济阳坳陷石炭-二叠纪层序划分与等时格架建立地层研究,石油物探, 2004, 45(1): 83~87
    [20]于林平,曹忠祥,李增学,济阳坳陷石炭-二叠系烃源岩有机地球化学特征,地质地球化学, 2003, 31(4): 68~73
    [21]白群丽,济阳坳陷石炭-二叠系煤成气成藏模式分析,油气地质与采收率, 2003, 10(5): 28~30
    [22]周建林,济阳坳陷石炭-二叠纪煤成气成藏规律认识,地球科学与环境学报, 2004,26 (2): 47~50
    [23]彭传圣,济阳坳陷孤北低潜山煤成气成藏条件及特征,中国海洋大学学报, 2005, 35(4): 670~676
    [24]王秉海、钱凯,胜利油区地质研究与勘探实践,山东东营:石油大学出版社,1992
    [25]牛树银,陈路,许传诗等,太行山区地壳演化及成矿规律.北京:地震出版社, 1994.
    [26]刘焕杰.潮坪成煤环境初论-三汇坝晚二叠世龙潭组含煤建造沉积环境模式.中国矿业学院学报, 1982, (2) : 61~71
    [27]葛宝勋,尹国勋,李春生,山西阳泉矿区含煤岩系沉积环境及聚煤规律探讨.沉积学报, 1985, 3 (3) : 33~44
    [28]刘焕杰,贾玉如,王宏伟,华北石炭纪含煤建造的陆表海堡岛体系特点及其事件沉积.沉积学报, 1987, 5 (3) : 73~80
    [29]杨起,河南禹县晚古生代煤系沉积环境与聚煤特征.北京:地质出版社. 1987, 55~71
    [30]李宝芳,李祯,付泽明.华北南部晚古生代陆表海的沉积充填特征和构造演化.地球科学, 1989, 14 (4) : 367~378
    [31]王士俊.山西、山东太原组煤核中的科达植物及其生活环境.中国矿业大学学报, 1989, (4) : 71~80
    [32]程保洲,山西晚古生代沉积环境与聚煤规律.太原:山西科技出版社, 1992, 121~243
    [33]陈钟惠,武法东,张守良等.华北晚古生代含煤岩系沉积环境和聚煤规律.武汉:中国地质大学出版社, 1993, 54~76
    [34]李增学,魏久传,李守春.鲁西河控浅水三角洲沉积体系及聚煤规律.煤田地质与勘探, 1995, 23 (2) : 7~13
    [35]尚冠雄.华北地台晚古生代煤地质学研究.太原:山西科技出版社, 1997, 55~67
    [36]陈建文,东海某井两类河流相沉积,海洋地质与第四纪地质, 1991, 11 (1): 41~45
    [37] Miall A D, The geology of fluvial deposits, Sptinges-Verlag Berlin Heidelberg, 1996, 75~178
    [38]辛仁臣,柳成志,雷顺,粗粒曲流河体系河道沉积的沉积构型分析-以籍家岭泉头组露头为例,大庆石油学院学报, 1997, 21 (3): 16~19
    [39] McLennan S M, Taylor S R. Sedimentary rocks and crustal evolution: tectonic setting and secular trands. The J Geol, 1991, 99: 1~21
    [40] McLennan S M. Rare earth elements in sedimentary rocks: influence of provenance and sedimentary processes. In: Lipin B R, McKay GA, eds. Geochemistry and mineralogy of rare earth elements. Reviews in Mineralogy, 1989, 21: 169~200
    [41] Taylor S R, McLennan SM. The continental crust: Its composition and evolution. Blackwell, 1985, 312
    [42] Girty G H. Provenance and depositional setting of Paleozoic chert and argillite, Sierra Nervada, California. J Sedi Res, 1996, 66 (1) :107~118
    [43] Grigsby J D. Detrital magnetite as a provenance indicator. J Sedi Petrol, 1990, 60 (6): 940~951
    [44] Morton A C. Geochemical studies of detrital heavy minerals and their application to provenance research. In: Morton A C , eds. Development in sedimentary provenance studies, 1991, 31~45
    [45] Murray R W, Brink M R, Brumsack H J, et al. REE in Japan Sea sediments and diagenetic behavior of Ce/Ce: Results from ODP Log 127. Geochim Cosmochim Acta, 1991, 55: 2453 ~2466
    [46] Murray R W. Chemical criteria to identify the depositional environment of chert: general principles and applications. Sedi Geol, 1994, 90: 213~232
    [47]杨守业,李从先, REE示踪沉积物物源研究进展,地球科学进展, 1999, 14(2): 164~167
    [48]刘宝君,曾允孚,岩相古地理基础和工作方法,北京:地质工业出版社,1985, 45~71
    [49]陈丽华,姜在兴.储层饰演测试技术.东营:石油大学出版社,1993.206~207
    [50]罗蛰谭,王允诚.油气储集层的孔隙结构.科学出版社,1986, 21~43, 106~123
    [51]张绍槐,罗平亚,保护储集层技术,北京:石油工业出版社,1993
    [52]刘建清,赖兴运,于炳松等,成岩作用的研究现状及展望,石油实验地质,2006,28(1): 65~77
    [53]周建林,济阳坳陷石炭-二叠纪煤成气成藏规律认识,地球科学与环境学报, 2004,26 (2): 47~50
    [54]吴智平,李伟,任拥军等,济阳坳陷中生代盆地演化及其与新生代盆地叠合关系探讨,地质学报,2003,77(2):280~286
    [55]龙玉梅.鄂尔多斯盆地坪北油田上三叠统延长组成岩作用及孔隙结构[学位论文],西北大学,西安:2002
    [56]孟元林,刘德来,贺如等,歧北凹陷沙二段超压背景下成岩场分析与储层孔隙度预测,沉积学报, 2005, 23(3): 389~396

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700