成藏期后的断层活动对油气聚集与保存的控制作用
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摘要
针对油气勘探中同一断层不同部位油气富集差异性,利用地震解释资料和钻探资料,研究辽河西部凹陷齐家—鸳鸯沟地区沙二段油气聚集与保存所需最低的断层后期活动强度.结果表明:沙二段内主要发育4条走向相同的断层,在主要油气成藏期—东营组沉积末期之后馆陶组—第四系的活动过程中,其中f1断层活动强度最大,对油气聚集的破坏作用最强;其次是f3断层,再次是f4断层,f2断层活动最弱,断层后期活动强度与油气分布之间具有密切关系,断层后期活动强度越小的断层或部位,油气越富集,油气钻探成功率越高;反之,则越低.沙二段油气聚集与保存所需最低的断层后期活动强度约为2m/Ma.
Aiming at the problem that oil and gas accumulation is different in different parts of the same fault in oil and gas exploration,by use of seismic data interpretation and drilling data,it conducts the required minimum late activity intensity of fault in hydrocarbon accumulation and preservation in Shaer member of western depression of Liaohe Qijia-Yuanyanggou area,the results show that there are four faults with the same strike in Shaer member,in the period Guantao group to quaternary after the end of Dongying to Guantao deposition,activity intensity of f1 fault is maximum,followed by f3 fault,again is f4,the activity intensity of f2 fault is weakest.There is a close relationship between oil and gas distribution and late activity intensity of fault,the smaller parts of strength of post-event of fault,the more enriched oil and gas,and drilling success rate is higher;the other hand the more low.the required minimum late activity intensity of fault in hydrocarbon accumulation and preservation in Shaer member is about 2 m/Ma.
Aiming at the problem that oil and gas accumulation is different in different parts of the same fault in oil and gas exploration,by use of seismic data interpretation and drilling data,it conducts the required minimum late activity intensity of fault in hydrocarbon accumulation and preservation in Shaer member of western depression of Liaohe Qijia-Yuanyanggou area,the results show that there are four faults with the same strike in Shaer member,in the period Guantao group to quaternary after the end of Dongying to Guantao deposition,activity intensity of f1 fault is maximum,followed by f3 fault,again is f4,the activity intensity of f2 fault is weakest.There is a close relationship between oil and gas distribution and late activity intensity of fault,the smaller parts of strength of post-event of fault,the more enriched oil and gas,and drilling success rate is higher;the other hand the more low.the required minimum late activity intensity of fault in hydrocarbon accumulation and preservation in Shaer member is about 2 m/Ma.
引文
[1]单俊峰,陈振岩,回雪峰.辽河拗陷西部凹陷坡洼过渡带岩性油气藏形成条件[J].石油勘探与开发,2005,32(6):42-45.
[2]李晓光,陈振岩,余成,等.坡洼过渡地区岩性油藏勘探实践—以齐家—鸳鸯沟地区为例[J].特种油气藏,2007,14(2):14-17.
[3]吕延防,黄劲松,付广,等.砂泥岩薄互层段断层封闭性定量研究[J].石油学报,2009,30(6):824-829.
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[5]李军生,庞雄奇,梁战松,等.辽河盆地东部凹陷西斜坡南段断阶带油气运聚模式[J].大庆石油学院学报,2007,31(5):1-3.
[6]李晓光,张金川,陈振岩,等.辽河拗陷西部凹陷油气成藏体系及天然气分布[J].天然气工业,2009,27(5):39-43.
[7]张忠民,朱伟,赵澄林.辽河盆地下第三系深部碎屑岩储层次生孔隙演化模式及其分布[J].大庆石油学院学报,2002,26(3):12-15.
[8]冯有良,鲁卫华,门相勇.辽河西部凹陷古近系层序地层与地层岩性油气藏预测[J].沉积学报,2009,27(1):57-63.
[9]刘立峰,姜振学,钟宁宁,等.辽河西部凹陷古近系烃源岩生烃动力学特征[J].地球科学(中国地质大学学报),2009,34(5):799-804.
[10]王金花.辽河断陷大民屯凹陷曹台地区太古宇潜山储层分析[J].大庆石油学院学报,2008,32(5):16-19.
[11]柳成志,霍广君,张冬玲.辽河盆地西部凹陷冷家油田沙三段扇三角洲-湖底扇沉积模式[J].大庆石油学院学报,1999,23(1):1-4.
[12]鞠俊成,张凤莲,喻国凡,等.辽河盆地西部凹陷南部沙三段储层沉积特征及含油气性分析[J].古地理学报,2001,3(1):63-69.
[13]吕延防,张发强,吴春霞.断层涂抹层分布规律的物理模拟实验研究[J].石油勘探与开发,2001,28(1):30-32.
[14]Brown A,Capillary pressure effects on fault sealing[J].AAPG Bulletin,2003,87:381-395.
[15]Allan U S.Model for hydrocarbon migration and entrapment within faulted structure s[J].AAPG Bulletin,1989,73:803-811.
[16]Bouvier J D,Kaars-Sijpesteijn C H,Kluesner D F,et al.Three-dimensional seismic interpretation and fault sealing investigations,nun river field,nigeria[J].AAPG Bulletin,1989,73:1397-1414.
[2]李晓光,陈振岩,余成,等.坡洼过渡地区岩性油藏勘探实践—以齐家—鸳鸯沟地区为例[J].特种油气藏,2007,14(2):14-17.
[3]吕延防,黄劲松,付广,等.砂泥岩薄互层段断层封闭性定量研究[J].石油学报,2009,30(6):824-829.
[4]郑孟林,吴铁生,王桂梁,等.辽河拗陷断层的选择反转特征[J].石油地球物理勘探,2004,39(2):228-231.
[5]李军生,庞雄奇,梁战松,等.辽河盆地东部凹陷西斜坡南段断阶带油气运聚模式[J].大庆石油学院学报,2007,31(5):1-3.
[6]李晓光,张金川,陈振岩,等.辽河拗陷西部凹陷油气成藏体系及天然气分布[J].天然气工业,2009,27(5):39-43.
[7]张忠民,朱伟,赵澄林.辽河盆地下第三系深部碎屑岩储层次生孔隙演化模式及其分布[J].大庆石油学院学报,2002,26(3):12-15.
[8]冯有良,鲁卫华,门相勇.辽河西部凹陷古近系层序地层与地层岩性油气藏预测[J].沉积学报,2009,27(1):57-63.
[9]刘立峰,姜振学,钟宁宁,等.辽河西部凹陷古近系烃源岩生烃动力学特征[J].地球科学(中国地质大学学报),2009,34(5):799-804.
[10]王金花.辽河断陷大民屯凹陷曹台地区太古宇潜山储层分析[J].大庆石油学院学报,2008,32(5):16-19.
[11]柳成志,霍广君,张冬玲.辽河盆地西部凹陷冷家油田沙三段扇三角洲-湖底扇沉积模式[J].大庆石油学院学报,1999,23(1):1-4.
[12]鞠俊成,张凤莲,喻国凡,等.辽河盆地西部凹陷南部沙三段储层沉积特征及含油气性分析[J].古地理学报,2001,3(1):63-69.
[13]吕延防,张发强,吴春霞.断层涂抹层分布规律的物理模拟实验研究[J].石油勘探与开发,2001,28(1):30-32.
[14]Brown A,Capillary pressure effects on fault sealing[J].AAPG Bulletin,2003,87:381-395.
[15]Allan U S.Model for hydrocarbon migration and entrapment within faulted structure s[J].AAPG Bulletin,1989,73:803-811.
[16]Bouvier J D,Kaars-Sijpesteijn C H,Kluesner D F,et al.Three-dimensional seismic interpretation and fault sealing investigations,nun river field,nigeria[J].AAPG Bulletin,1989,73:1397-1414.
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