唐庄地区沙河街组油藏特征及控制因素研究
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摘要
利用地质、测井、试油试采和地震等资料,对唐庄地区沙河街组进行了精细地层划分对比,在此基础上分析了该区沙河街组各亚段的构造特征、沉积特征和油气成藏规律。研究表明,本区断层发育,构造复杂;沙三段和沙二段以三角洲沉积为主,沙一段主要为滨浅湖滩坝沉积;断层是影响本区油气分布和聚集的主要因素,沙二段是全区主力产油层位。研究区油藏类型以断块油藏为主,具多层系含油、油水关系复杂、油藏规模小等特点。研究区南部至今没有取得大的突破,而该区地层发育齐全,成藏条件优越,是今后勘探的重点,尤其是沙一段和沙三中亚段下部是寻找岩性圈闭的有利层位。
By using the geology,logging,test and production,and seismic data,we made delicate stratigraphic division and classification of Shahejie Formation in Tangzhuang Oilfield. Based on the former work,we analysed the structural characteristics,sedimentary characteristics and oil and gas accumulation rule of the sub-member of Shahejie Formation in this area. Research shows that the fault zone in this area is developed and the structure of the layer is very complex;Es3 and Es2 mainly developed delta facies,but Es1 developed dam deposition belonging to shallow lake facies;faults are the most important factors to the oil and gas distribution and accumulation,and Es2 is the main oil producing zone. The reservoirs in this area are mainly fault block oil reservoir with characteristics of multiple oil bearing systems,complex oil-water relationship and small scale reservoir. Until now,the exploration of south area has not obtained breakthrough,but it is the next key exploration area relying on its completely developed strata and superior reservoir formation conditions,especially Es2 and lower middle Es3 are beneficial layers to seek lithologic traps.
By using the geology,logging,test and production,and seismic data,we made delicate stratigraphic division and classification of Shahejie Formation in Tangzhuang Oilfield. Based on the former work,we analysed the structural characteristics,sedimentary characteristics and oil and gas accumulation rule of the sub-member of Shahejie Formation in this area. Research shows that the fault zone in this area is developed and the structure of the layer is very complex;Es3 and Es2 mainly developed delta facies,but Es1 developed dam deposition belonging to shallow lake facies;faults are the most important factors to the oil and gas distribution and accumulation,and Es2 is the main oil producing zone. The reservoirs in this area are mainly fault block oil reservoir with characteristics of multiple oil bearing systems,complex oil-water relationship and small scale reservoir. Until now,the exploration of south area has not obtained breakthrough,but it is the next key exploration area relying on its completely developed strata and superior reservoir formation conditions,especially Es2 and lower middle Es3 are beneficial layers to seek lithologic traps.
引文
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[3]操应长,姜在兴,李春华,等.山东惠民凹陷中央隆起带古近系沙三段层序地层及沉积演化[J].古地理学报,2002,4(3):40-45
[4]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
[5]蒋有录,查明.石油天然气地质与勘探[M].北京:石油工业出版社,2006
[6]Hindle A D.Petroleum migration pathway and charge concentra-tion:A three-dimensional model[J].AAPG Bulletin,1997,81(9):1451-1481
[7]高先志,吕双兵.塔中地区古生界油气输导体系与油气运聚模式[J].天然气工业,2006,26(10):9-11
[8]Demaison G J,Huizinga B J.Genetic classification of petroleum system[J].AAPG Bulletin,1991,75(2):1625-1643
[9]操应长.临盘油田临13断块区沙二下断块油藏构造特征[J].石油大学学报(自然科学版),1999,23(6):6-16
[10]王秉海,钱凯.胜利油区地质研究与勘探实践[M].东营:石油大学出版社,1992
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