贝西斜坡北部地区南屯组油气成藏条件研究
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摘要
本文综合采用沉积学、构造地质学、石油地质学等理论为指导,以地质、物探、测井、录井等多种资料的综合研究为途径,深入研究斜坡地区的生储盖层的时空分布规律,重点研究油气藏的源岩和油气疏导、储层和盖层特征、油藏形成的主控因素,优选有利的油气勘探区带,落实、评价有利勘探目标,对今后该区油气勘探与开发具有重要的借鉴价值。
贝尔凹陷主要烃源岩在纵向上主要是南屯组和大一段,暗色泥岩发育,有机质的演化也相对比较充分,从对贝尔凹陷原油色质分析结果对比看,贝西斜坡构造带中的原油与贝尔凹陷具有同源性,贝西洼槽应该是本区的主要源岩区,油气可直接沿断裂、砂体或不整合面运移至呼和诺仁构造、和苏乃诺尔构造带。
对贝西斜坡地区南屯组储层评价得出:Ⅰ类储层分布在孔渗性较好和有利的油气聚集相带,南二段储层储集条件要好于南一段,储层整体延凹陷到斜坡处储层逐渐变好。从大一段和南二段泥岩盖层的微观和宏观封闭特征的评价来看,大一段泥岩盖层和南二段泥岩盖层是一套很好的区域盖层和局部盖层,封盖油气能力较强,对南屯组油气储集和保存较为有利。
已发现的圈闭集中在主断裂附近,并与主断裂方向一致延北东东向分布。局部构造以断块和断鼻为主,伴有构造一岩性圈闭和岩性圈闭。通过对地区的成藏条件整体研究,本地区发育很好的烃源岩,较厚的储层和区域性与局部性盖层,具有良好的生储盖组合,从这几方面来看具有形成良好油藏的基本条件。因此圈闭是否具备及其有效性是成藏最主要的控制因素。
In this paper,a combination of the sedimentology, structural geology, petroleum geology and other theories as the guide, geological, geophysical logging and otherinformation for a comprehensive study of ways, in-depth studies in the slope of the reservoir and cover spatial and temporal distribution laws, focused on oil and gas source rocks and reservoirs of oil and gas persuasion, and the capping reservoir characteristics of the reservoir formation control, ptimization favorable oil and gas exploration zone, implementation evaluation favorable exploration targets in the future the area of oil and gas exploration and Development has an important reference value.
Bell Depression main hydrocarbon source rocks in the main longitudinal group and the Nam Theun Damoguaihe section dark shale development, the evolution of organic matter also relatively full, from the Bell's Depression-quality crude oil analysis results contrast, the tectonic Spacey slopes with the oil and Bell Depression with homology, Behcet depression is one of the trough should be the main source rocks, oil and gas can be directly along the fault, sand or respiratory migration and integration for Connaught-structure, and Su Nour is in the transport of the belt, poly.
Spacey on the slopes in Nantun group reservoir parameters on the evaluation of the reservoir evaluation that class, distribution in reservoir porosity and permeability better and favourable oil and gas accumulation zones of the region, South Sec reservoirs better conditions on the South section of a reservoir extension of the overall slope to the reservoir Depression gradually good trend, the section of the Southern Sec mudstone caprock shale cover is a good cover regional and local cover, blocks the ability of oil and gas than Strong, Nantun group in the reservoir of oil and gas accumulation and preservation are more favourable.
The trap has been found concentrated in the vicinity of the main fault and fracture direction consistent with the main extension to the North NEE distribution. Local constructed to block broken nose and mainly, with a structure and lithology lithologic trap trap. By Behcet slope-forming conditions in the overall study, from this point of view a few Good reservoir formation of the basic conditions. Therefore, the availability and effectiveness of traps how is the most important reservoir control factors.
贝尔凹陷主要烃源岩在纵向上主要是南屯组和大一段,暗色泥岩发育,有机质的演化也相对比较充分,从对贝尔凹陷原油色质分析结果对比看,贝西斜坡构造带中的原油与贝尔凹陷具有同源性,贝西洼槽应该是本区的主要源岩区,油气可直接沿断裂、砂体或不整合面运移至呼和诺仁构造、和苏乃诺尔构造带。
对贝西斜坡地区南屯组储层评价得出:Ⅰ类储层分布在孔渗性较好和有利的油气聚集相带,南二段储层储集条件要好于南一段,储层整体延凹陷到斜坡处储层逐渐变好。从大一段和南二段泥岩盖层的微观和宏观封闭特征的评价来看,大一段泥岩盖层和南二段泥岩盖层是一套很好的区域盖层和局部盖层,封盖油气能力较强,对南屯组油气储集和保存较为有利。
已发现的圈闭集中在主断裂附近,并与主断裂方向一致延北东东向分布。局部构造以断块和断鼻为主,伴有构造一岩性圈闭和岩性圈闭。通过对地区的成藏条件整体研究,本地区发育很好的烃源岩,较厚的储层和区域性与局部性盖层,具有良好的生储盖组合,从这几方面来看具有形成良好油藏的基本条件。因此圈闭是否具备及其有效性是成藏最主要的控制因素。
In this paper,a combination of the sedimentology, structural geology, petroleum geology and other theories as the guide, geological, geophysical logging and otherinformation for a comprehensive study of ways, in-depth studies in the slope of the reservoir and cover spatial and temporal distribution laws, focused on oil and gas source rocks and reservoirs of oil and gas persuasion, and the capping reservoir characteristics of the reservoir formation control, ptimization favorable oil and gas exploration zone, implementation evaluation favorable exploration targets in the future the area of oil and gas exploration and Development has an important reference value.
Bell Depression main hydrocarbon source rocks in the main longitudinal group and the Nam Theun Damoguaihe section dark shale development, the evolution of organic matter also relatively full, from the Bell's Depression-quality crude oil analysis results contrast, the tectonic Spacey slopes with the oil and Bell Depression with homology, Behcet depression is one of the trough should be the main source rocks, oil and gas can be directly along the fault, sand or respiratory migration and integration for Connaught-structure, and Su Nour is in the transport of the belt, poly.
Spacey on the slopes in Nantun group reservoir parameters on the evaluation of the reservoir evaluation that class, distribution in reservoir porosity and permeability better and favourable oil and gas accumulation zones of the region, South Sec reservoirs better conditions on the South section of a reservoir extension of the overall slope to the reservoir Depression gradually good trend, the section of the Southern Sec mudstone caprock shale cover is a good cover regional and local cover, blocks the ability of oil and gas than Strong, Nantun group in the reservoir of oil and gas accumulation and preservation are more favourable.
The trap has been found concentrated in the vicinity of the main fault and fracture direction consistent with the main extension to the North NEE distribution. Local constructed to block broken nose and mainly, with a structure and lithology lithologic trap trap. By Behcet slope-forming conditions in the overall study, from this point of view a few Good reservoir formation of the basic conditions. Therefore, the availability and effectiveness of traps how is the most important reservoir control factors.
引文
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[2] Choquette , P.W. , and James, N.P. Diagenesis 12:diagenesis in limestones-3.The deep burial environment : Geoscience Canada, 1987, 14:3~35.
[3]陈守田等.海拉尔盆地构造样式分析[J].吉林大学学报(地球科学版),2005,35(1):39~42.
[4]吕锡敏等.海拉尔盆地构造特征与演化史研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[5]冯增昭主编,沉积岩石学,北京:石油工业出版社,1992.56~102.
[6]张晓东等.海拉尔盆地贝尔—乌尔逊凹陷油气成藏条件及目标评价,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[7]张长俊、张哨楠、刘家铎,内蒙古自治区海拉尔盆地铜钵庙组、南屯组、大磨拐河组沉积相研究报告,成都地质学院,1990.10:3~15.
[8]霍秋立,汪振英,李敏,付丽,冯大晨.海拉尔盆地贝尔凹陷油源及油气运移研究[J]吉林大学学报(地球科学版)2006.36(3):378~383.
[9]朱光有,金强,王锐.有效烃源岩的识别方法[J].石油大学学报(自然科学版)2003,27(2):6~10.
[10]冯志强,张晓东,任延广,吴河勇,李春柏,董万百.海拉尔盆地油气成藏特征及分布规律[J]2004,23(5):16~19
[11]王家亮,张金川,张杰等.海拉尔盆地贝尔凹陷的油气运聚分析[J]现代地质,2003,17(4):460~465.
[12]任战利等.海拉尔盆地热演化史与油气运移聚集条件研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[13]张吉光.海拉尔盆地不整合的形成及其油气地质意义[J],大庆石油地质与开发,2002,21(5):8~11.
[14]高玉巧,刘立,曲希玉.海拉尔盆地贝尔凹陷和乌尔逊凹陷南屯组储层岩石学特征比较[M],理论沉积学及其新技术、新方法应用,1999,23(2):51~54.
[15]蒲仁海等.海拉尔盆地沉积相与储层特征研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[16]刘存革,李国蓉,吴勇.新疆塔河油田下奥陶统碳酸盐岩储层成因类型与评价[J],沉积与特提斯地质,2004,24(1):91~96.
[17]文玲,胡书毅,田海芹.靖安油田延长组长6段低孔低渗透储层特征及评价[J],西北地质,2001,34(4):53~60.
[18]付晓飞,付广,赵平伟.断层封闭机理及主要影响因素研究[J],天然气地球科学,1999,10(3):54~62.
[19]付广,吕延防,杨勉.超压泥质岩盖层封闭油气机理的新认识[A],北京:石油工业出版社,2000,219~223.
[20]吴元燕,陈碧珏等,油矿地质学[M],北京:石油工业出版社,1996,143~189.
[21]李昌谷,张雁,李钦铭,王文明.海拉尔盆地大磨拐河组下段泥岩盖层封盖油气能力评价[J],大庆石油学院学报,1999,23(2):12~15.
[22]魏魁生等.海拉尔盆地乌尔逊—贝尔凹陷层序地层研究及非构造圈闭预测,2003,内部研究报告,大庆油田有限责任公司技术发展部.
[23]张尔华、梁晓东,海拉尔盆地贝尔凹陷地震地层研究,大庆石油管理局勘探开发研究院区域室,1986.12:21~47.
[24]王建民,刘杰烈,陈守田.海拉尔盆地岩性、地层油气藏勘探前景[J],石油地球物理勘探,2006,41~45.
[25]赵荣、金曙光,乌尔逊凹陷北部圈闭综合评价[J],大庆石油地质与开发2004, 14~17.
[26]李亚辉,刘泽容,陈利.断层封闭演化史研究及其应用[J],石油大学学报(自然科学报),1998,10(3):54~62.
[27]査明，张一伟，邱楠生.油气成藏条件及主控因素[M],北京:石油工业出版社,2003,71~95.
[28]沈华,刘俊,刘建党3贝尔凹陷褶皱构造样式及成因分析[J]中国矿业,2005,79~81.
[29]吕锡敏等,海拉尔盆地构造特征与演化史研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[30]张吉光,海拉尔盆地不整合的形成及其油气地质意义[J],大庆石油地质与开发,2002,21(5):8~11.
[31]何登发,不整合面的结构与油气聚集[J],石油勘探与开发,2007.34(2):142~148
[32]任战利等.海拉尔盆地热演化史与油气运移聚集条件研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[33]张兴全,安玉玲.天然地震与构造裂缝、油气运移的关系研究[J].石油勘探与开发,2000,27(4):106~108.
[34]曹成润等.石油构造地质学[M].黑龙江:黑龙江科学技术出版社.1992
[35]费宝生等,乌尔逊—贝尔凹陷构造特征与油气富集规律(中期成果),2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[2] Choquette , P.W. , and James, N.P. Diagenesis 12:diagenesis in limestones-3.The deep burial environment : Geoscience Canada, 1987, 14:3~35.
[3]陈守田等.海拉尔盆地构造样式分析[J].吉林大学学报(地球科学版),2005,35(1):39~42.
[4]吕锡敏等.海拉尔盆地构造特征与演化史研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[5]冯增昭主编,沉积岩石学,北京:石油工业出版社,1992.56~102.
[6]张晓东等.海拉尔盆地贝尔—乌尔逊凹陷油气成藏条件及目标评价,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[7]张长俊、张哨楠、刘家铎,内蒙古自治区海拉尔盆地铜钵庙组、南屯组、大磨拐河组沉积相研究报告,成都地质学院,1990.10:3~15.
[8]霍秋立,汪振英,李敏,付丽,冯大晨.海拉尔盆地贝尔凹陷油源及油气运移研究[J]吉林大学学报(地球科学版)2006.36(3):378~383.
[9]朱光有,金强,王锐.有效烃源岩的识别方法[J].石油大学学报(自然科学版)2003,27(2):6~10.
[10]冯志强,张晓东,任延广,吴河勇,李春柏,董万百.海拉尔盆地油气成藏特征及分布规律[J]2004,23(5):16~19
[11]王家亮,张金川,张杰等.海拉尔盆地贝尔凹陷的油气运聚分析[J]现代地质,2003,17(4):460~465.
[12]任战利等.海拉尔盆地热演化史与油气运移聚集条件研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[13]张吉光.海拉尔盆地不整合的形成及其油气地质意义[J],大庆石油地质与开发,2002,21(5):8~11.
[14]高玉巧,刘立,曲希玉.海拉尔盆地贝尔凹陷和乌尔逊凹陷南屯组储层岩石学特征比较[M],理论沉积学及其新技术、新方法应用,1999,23(2):51~54.
[15]蒲仁海等.海拉尔盆地沉积相与储层特征研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[16]刘存革,李国蓉,吴勇.新疆塔河油田下奥陶统碳酸盐岩储层成因类型与评价[J],沉积与特提斯地质,2004,24(1):91~96.
[17]文玲,胡书毅,田海芹.靖安油田延长组长6段低孔低渗透储层特征及评价[J],西北地质,2001,34(4):53~60.
[18]付晓飞,付广,赵平伟.断层封闭机理及主要影响因素研究[J],天然气地球科学,1999,10(3):54~62.
[19]付广,吕延防,杨勉.超压泥质岩盖层封闭油气机理的新认识[A],北京:石油工业出版社,2000,219~223.
[20]吴元燕,陈碧珏等,油矿地质学[M],北京:石油工业出版社,1996,143~189.
[21]李昌谷,张雁,李钦铭,王文明.海拉尔盆地大磨拐河组下段泥岩盖层封盖油气能力评价[J],大庆石油学院学报,1999,23(2):12~15.
[22]魏魁生等.海拉尔盆地乌尔逊—贝尔凹陷层序地层研究及非构造圈闭预测,2003,内部研究报告,大庆油田有限责任公司技术发展部.
[23]张尔华、梁晓东,海拉尔盆地贝尔凹陷地震地层研究,大庆石油管理局勘探开发研究院区域室,1986.12:21~47.
[24]王建民,刘杰烈,陈守田.海拉尔盆地岩性、地层油气藏勘探前景[J],石油地球物理勘探,2006,41~45.
[25]赵荣、金曙光,乌尔逊凹陷北部圈闭综合评价[J],大庆石油地质与开发2004, 14~17.
[26]李亚辉,刘泽容,陈利.断层封闭演化史研究及其应用[J],石油大学学报(自然科学报),1998,10(3):54~62.
[27]査明，张一伟，邱楠生.油气成藏条件及主控因素[M],北京:石油工业出版社,2003,71~95.
[28]沈华,刘俊,刘建党3贝尔凹陷褶皱构造样式及成因分析[J]中国矿业,2005,79~81.
[29]吕锡敏等,海拉尔盆地构造特征与演化史研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[30]张吉光,海拉尔盆地不整合的形成及其油气地质意义[J],大庆石油地质与开发,2002,21(5):8~11.
[31]何登发,不整合面的结构与油气聚集[J],石油勘探与开发,2007.34(2):142~148
[32]任战利等.海拉尔盆地热演化史与油气运移聚集条件研究,2003,内部研究报告,大庆油田有限责任公司勘探分公司.
[33]张兴全,安玉玲.天然地震与构造裂缝、油气运移的关系研究[J].石油勘探与开发,2000,27(4):106~108.
[34]曹成润等.石油构造地质学[M].黑龙江:黑龙江科学技术出版社.1992
[35]费宝生等,乌尔逊—贝尔凹陷构造特征与油气富集规律(中期成果),2003,内部研究报告,大庆油田有限责任公司勘探分公司.