齐家—古龙地区向斜成藏机制研究
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摘要
在含油气盆地的向斜区寻找勘探目标是石油地质学中的新领域。到目前为止向斜成藏机制还未成熟,本文的研究具有重要的理论意义和实践参考价值。本论文以他拉哈向斜葡萄花油层为主要研究对象,开展了向斜成藏机制的研究,本项研究以综合地质分析为基础,充分利用他拉哈向斜区现有的钻井、测井、地震、地化、分析测试资料,采用叠合的方法研究了齐家古龙凹陷他拉哈向斜油藏成藏条件、油藏分布规律等。本文归纳出的葡萄花油层在超压控制下流体的运移模式是从地质角度说明向斜成藏的必要条件。
经油源对比和烃源岩研究,认为研究区葡萄花油层的油来源于青山口组。对储层岩石学特征进行了研究,表明本区砂岩成分成熟度较低,结构成熟度中等。对储层物性特征的研究结果为葡萄花油层属中孔、低渗储层,孔隙度、渗透率低值区主要分布在凹陷中心,而埋深相对浅和物源方向的孔渗较好。并且葡萄花油层孔隙度和渗透率分布不均匀。证实了油层超压主要来自超压系统内部的压力传递;内部原油的热裂解对储层也有一定贡献。对油层超压和青山口组泥岩超压的分布表明青山口组目前扔在生烃并向葡萄花油层供烃,并且认为这是向斜成藏的重要物质条件。滞留效应是向斜成藏的重要封挡条件。另外本文认为超压也可以为向斜成藏起到封挡作用。指出向斜区油藏类型主要为岩性油藏。确定了油气成藏时期。在此基础上,总结出了他拉哈向斜油气藏形成模式向斜区成藏主控因素分析和成藏机制的研究,完善了向斜区成藏理论,为今后向斜区评价开发指明方向。
Syncline basins containing oil and gas exploration target area is looking for a new field of oil geology. Far syncline forming mechanism has been mature, this study has important theoretical significance and practical reference value. This paper has targan syncline Putaohua as the main object of study, carried out the study syncline forming mechanism, this study integrated geological analysis, based on full use of targan syncline area of existing drilling, testing wells, seismic, ground-based, analytical test data, using the method of superposition of the Qijia Gulong Depression targan syncline reservoir forming conditions, reservoir distribution patterns. This article sum up the pressure in the ultra-Putaohua under the control of the migration patterns of fluid from a geological point of view shows syncline forming the necessary conditions.
The oil-source correlation and hydrocarbon source rock studies, that the study area Putaohua oil from qn. On the reservoir rock characteristics were studied, indicating that this region a lower sandstone compositional maturity, structure, maturity medium. Physical characteristics of the reservoir study of the genus Putaohua porosity, low permeability reservoir, porosity, permeability low value area is mainly distributed in depression center, and a relatively shallow depth and the direction of the source material better porosity and permeability. And Putaohua uneven distribution of porosity and permeability. Confirmed the reservoir overpressure overpressure within the system come mainly from the pressure of passing; inside the thermal cracking of crude oil also has contributed to the reservoir. Right reservoir overpressure and overpressure shale Qingshankou Qingshankou the distribution of that group is now thrown into the hydrocarbon reservoir for the hydrocarbons to the grape flowers, and think that this is an important material syncline reservoir conditions. Residual effect is an important Fengdang syncline reservoir conditions. Another paper that the excess pressure can also play a Fengdang syncline forming role. Pointed out that the syncline area is mainly lithologic reservoir reservoir type. Identified oil and gas accumulation period. On this basis, summed up targan syncline syncline reservoir area into a reservoir formation model controlling factors and accumulation mechanism of the study, improve the syncline area into a reservoir theory syncline area for the future development of the specified evaluation direction.
经油源对比和烃源岩研究,认为研究区葡萄花油层的油来源于青山口组。对储层岩石学特征进行了研究,表明本区砂岩成分成熟度较低,结构成熟度中等。对储层物性特征的研究结果为葡萄花油层属中孔、低渗储层,孔隙度、渗透率低值区主要分布在凹陷中心,而埋深相对浅和物源方向的孔渗较好。并且葡萄花油层孔隙度和渗透率分布不均匀。证实了油层超压主要来自超压系统内部的压力传递;内部原油的热裂解对储层也有一定贡献。对油层超压和青山口组泥岩超压的分布表明青山口组目前扔在生烃并向葡萄花油层供烃,并且认为这是向斜成藏的重要物质条件。滞留效应是向斜成藏的重要封挡条件。另外本文认为超压也可以为向斜成藏起到封挡作用。指出向斜区油藏类型主要为岩性油藏。确定了油气成藏时期。在此基础上,总结出了他拉哈向斜油气藏形成模式向斜区成藏主控因素分析和成藏机制的研究,完善了向斜区成藏理论,为今后向斜区评价开发指明方向。
Syncline basins containing oil and gas exploration target area is looking for a new field of oil geology. Far syncline forming mechanism has been mature, this study has important theoretical significance and practical reference value. This paper has targan syncline Putaohua as the main object of study, carried out the study syncline forming mechanism, this study integrated geological analysis, based on full use of targan syncline area of existing drilling, testing wells, seismic, ground-based, analytical test data, using the method of superposition of the Qijia Gulong Depression targan syncline reservoir forming conditions, reservoir distribution patterns. This article sum up the pressure in the ultra-Putaohua under the control of the migration patterns of fluid from a geological point of view shows syncline forming the necessary conditions.
The oil-source correlation and hydrocarbon source rock studies, that the study area Putaohua oil from qn. On the reservoir rock characteristics were studied, indicating that this region a lower sandstone compositional maturity, structure, maturity medium. Physical characteristics of the reservoir study of the genus Putaohua porosity, low permeability reservoir, porosity, permeability low value area is mainly distributed in depression center, and a relatively shallow depth and the direction of the source material better porosity and permeability. And Putaohua uneven distribution of porosity and permeability. Confirmed the reservoir overpressure overpressure within the system come mainly from the pressure of passing; inside the thermal cracking of crude oil also has contributed to the reservoir. Right reservoir overpressure and overpressure shale Qingshankou Qingshankou the distribution of that group is now thrown into the hydrocarbon reservoir for the hydrocarbons to the grape flowers, and think that this is an important material syncline reservoir conditions. Residual effect is an important Fengdang syncline reservoir conditions. Another paper that the excess pressure can also play a Fengdang syncline forming role. Pointed out that the syncline area is mainly lithologic reservoir reservoir type. Identified oil and gas accumulation period. On this basis, summed up targan syncline syncline reservoir area into a reservoir formation model controlling factors and accumulation mechanism of the study, improve the syncline area into a reservoir theory syncline area for the future development of the specified evaluation direction.
引文
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[26]卢双舫等.海拉尔盆地呼和湖凹陷有机质原始生烃潜力和原始丰度的恢复[J].大庆石油学院学报,1995,19(1).
[27]刘大锰,金奎励,姚素平.沉积有机质的成烃模拟实验研究[J].地质论评,1995,41(6):544~552.
[28]史斗,刘文汇,郑军卫.深层气理论分析和深层气潜势研究[J].地球科学进展,2003,18(2):236~244.
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[34]高瑞祺.泥岩异常高压带油气的生成、排出特征与泥岩裂缝油气藏的形成[J].大庆石油地质与开发,1984,3(1):160~167.
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[36]付广,吕延防,付晓飞.泥岩盖层浓度封闭演化特征-以松辽盆地下白垩统泥岩为例[J].地质科学,2003,38 (2):165~171.
[37]付广,孟庆芬.松辽盆地北部异常高压在油气成藏与保存中的作用[J].油气地质与采收率,2003,10(1):23~26.
[38]迟元林,萧德铭,殷进垠.松辽盆地三肇地区上生下储“注入式”成藏机制[J]地质学报, 2000,74(4) :373~379.
[39]付广,王有功.三肇凹陷青山口组源岩生成油向下“倒灌”运移层位及其研究意义[J].沉积学报,2008,26(02):355~360.
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[2] Schowlter T T. Mechanics of secondary hydrocarbon migration and entrapment. AAPG Bulletin, 1979, 63:723-760.
[3] Allan U S. Model for Hydrocarbon and Entrapment within Faulted Structures. AAPG Bulletin, 1989, 73:803-811.
[4] Dembicki H Jr et al. Secondary Migration of Oil Experiments Efficient Movement of Separate, Buoyant Oil Phase Along Limited Conduits. AAPG Bulletin, 1989, 73:1018-1021.
[5] England W A. Petroleum Migration. Geofluids’93 Extended Abstracts, Parnell J et al(eds.) , 1993.
[6] Hindle A D. Petroleum migration pathways and charge concentration: a three dimensional model. AAPG Bulletin, 1997, 81:1451-1481.
[7] Dore AG, Scotchman IC, Corcoran D. Cenozoic exhumation and prediction of the hydrocarbon system on the NW European margin. Journal of geochemical exploration, 2000, 69: 615-618.
[8] Magoon, L B. The petroleum system– a classification scheme for research, resource assessment, and exploration (abs.). AAPG Bulletin, 1987, 71(5):587.
[9] Perrodon A. Dynamics of Oil and gas accumulations: Pua, Elf Aquitaine, 1983, P187-210. Price LC.. Origins, characteristics, controls, and economic viabilities of deep-basin gas resources. Chemical Geology, 1995, 126 (3-4): 335-349.
[10] Yang W.Daqing oil field, people’s republic of China: a giant field with oil of non marine origin. AAPG Bull, 1985a, 69:1101-1111.
[11] Yang W, Li Y, Gao R. Formation and evolution of non marine petroelum in Songliao basin, China. AAPG Bull, 1985b, 69:1112-1122.
[12]赵文智,邹才能,汪泽成等.富油气凹陷“满凹含油”论-内涵与意义[J].石油勘探与开发,2004,31(2):5~13.
[13]吴河勇,梁晓东,向才富,王跃文.松辽盆地向斜油藏特征及成藏机理探讨[J].中国科学D辑.地球科学,2007,37(2):185~191.
[14]卓勤功.深洼区岩性油气藏成藏机理研究与思考[J].断块油气田,2006,13(2):4~7.
[15]陈建文,厉玉乐,孙德君等.油田水动力系统与油气藏的形成[J].海洋地质与第四纪地质,1999,19(4):31~38.
[16]李建忠,赵文智,胡素云等.岩性地层型油气聚集区带的基本特征[J].石油学报,2007,28(1):14~19.
[17]张小莉,查明,王鹏.单砂体高部位油水倒置分布的成因机制[J].沉积学报,2006,24(1):148~152.
[18]张功成,蔡希源,周章保等.裂陷盆地分析原理和方法-以松辽盆地为例[M].北京:石油工业出版社,1996,261~266.
[19]高瑞褀,蔡希源.松辽盆地油气田形成条件与分布规律[M].北京:石油工业出版社. 1997,4~10,48,107.
[20] Tissot.B.P., Welte.D.H..Petroleum Formation and Occurrence. Springer-Verlag, Berlin Heidelberg, New York.1978.
[21]杨万里等.松辽陆相盆地石油地质[M].石油工业出版社,1985.
[22]大庆油田石油地质志编辑委员会.中国石油地质志(卷一)-大庆油田[M].北京:石油工业出版社,1993,55~56.
[23]杨万里,王志武,钟其权等.松辽陆相盆地石油地质[J].北京:石油工业出版社,1985,1~386.
[24]王睿勇,周文,吴庆余等.聚胞藻热模拟产烃研究[J].南京大学学报(自然科学版),1999,35(5):525~531.
[25]蒋启贵,王勤,承秋泉,张彩明等.不同组分烃源岩生烃动力学特征浅析[J].石油实验地质,2005,27(5):512~518.
[26]卢双舫等.海拉尔盆地呼和湖凹陷有机质原始生烃潜力和原始丰度的恢复[J].大庆石油学院学报,1995,19(1).
[27]刘大锰,金奎励,姚素平.沉积有机质的成烃模拟实验研究[J].地质论评,1995,41(6):544~552.
[28]史斗,刘文汇,郑军卫.深层气理论分析和深层气潜势研究[J].地球科学进展,2003,18(2):236~244.
[29]刘耀光.松辽盆地深层生油岩评价[J].大庆石油学院学报,1982,4(4).
[30]庞雄奇等.含油气盆地地史热史生留排烃史数值模拟研究[M].地质出版社,1993.
[31]卢双舫,薛海涛,钟宁宁.石油保存下限的化学动力学研究[J].石油勘探与开发,2002,29(6):1~3.
[32]池英柳,张万选,张厚福,孙红军.陆相断陷盆地层序成因初探[J].石油学报,1996,17(3):19~25.
[33]罗蛰潭,王允诚.油气储集层的孔隙结构.北京:科学出版社,1986,198~206.
[34]高瑞祺.泥岩异常高压带油气的生成、排出特征与泥岩裂缝油气藏的形成[J].大庆石油地质与开发,1984,3(1):160~167.
[35]李捷,王海云.松辽盆地古龙凹陷青山口组泥岩异常高压与裂缝的关系[J].长春地质学院学报,1996,26(1):139~147.
[36]付广,吕延防,付晓飞.泥岩盖层浓度封闭演化特征-以松辽盆地下白垩统泥岩为例[J].地质科学,2003,38 (2):165~171.
[37]付广,孟庆芬.松辽盆地北部异常高压在油气成藏与保存中的作用[J].油气地质与采收率,2003,10(1):23~26.
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