HYDROCARBON ACCUMULATION ZONES OF ORDOVICIAN CARBONATE RESERVOIR IN TAZHONG AREA OF THE TARIM BASIN
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摘要: 塔里木盆地塔中地区早中奥陶世为局限—开阔台地相碳酸盐岩沉积,晚奥陶世早期发展为半岛式的孤立台地,发育台缘礁滩相沉积。塔中地区经历了加里东中期—海西早期的抬升改造,发育多期不同程度的表生岩溶作用。在不同期构造沉积演化分析的基础上,提出奥陶系碳酸盐岩储层受构造古地理环境、沉积相组合、成岩改造期次等多因素综合控制,发育表生岩溶型、台缘礁滩型、白云岩型及热液改造型4种类型储层。根据储层成因类型及其展布,在塔中含油气区划分出上述4种类型的碳酸盐岩油气聚集带。Abstract: Tazhong area of the Tarim Basin is restricted-open platform facies carbonate rock sediments from early to middle Ordovician.During the early stage of late Ordovician,the region develops to peninsula-like isolated platform and reef-band facies sediments along platform margin are deposited.Due to uplifts from middle Caledonian to early Hercynian,Tazhong area has experienced stages of supergene karst effects.Based on analysis of stages of tectonic evolution,it is pointed out that,Ordovician carbonate rock reservoirs in this region are controlled by palaeo-geography,sedimentary facies and diagenetic deformation stages.There are 4 types of reservoirs correspondingly: supergene karst,reef-band along platform margin,dolomite and hydrothermal deformation.Hence 4 types of accumulation zone are divided.
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Key words:
- carbonate rocks /
- reservoir /
- hydrocarbon accumulation zone /
- Tazhong area
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[1] 周新源,王招明,杨海军等.塔中奥陶系大型凝析气田的勘探和发现[J].海相油气地质,2006,11(1):45~52 [2] 高长林,叶德燎.塔里木库鲁克塔克古原洋裂谷与地幔柱[J].石油实验地质,2004,26(2):161~168 [3] 顾家裕,张兴阳,罗平等.塔里木盆地奥陶系台地边缘生物礁、滩发育特征[J].石油与天然气地质,2005,26(3):278~283 [4] 王恕一,黄继文,蒋小琼.塔里木盆地上奥陶统沉积及古地理特征[J].石油实验地质,2006,28(3):236~242 [5] 马明侠,陈新军,张学恒.塔里木盆地塔中地区寒武-奥陶系沉积特征及构造控制[J].石油实验地质,2006,28(6):549~553 [6] 陈强路,王恕一,马红强.塔里木盆地塔河油田奥陶系碳酸盐岩成岩作用与孔隙演化[J].石油实验地质,2003,25(6):729~734 [7] 刘忠宝,于炳松,高志前等.塔中地区西部倾没端奥陶系高频层序地层格架中岩溶发育特征[J].石油天然气学报(江汉石油学院学报),2005,27(4):570~573 [8] Sun S Q.Dolomite reservoirs:porosity evolution and reservoir characteristics[J].AAPG Bulletin,1995,79:186~204 [9] Warren J.Dolomite:occurrence,evolution and economically important associations[J].Earth-Science Review,2000,52:1~81 [10] 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,1999.277~281 [11] 刘克奇,金之钧,吕修祥等.塔里木盆地塔中低凸起奥陶系碳酸盐岩油气成藏[J].石油实验地质,2004,26(4):531~536
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