龙岗须家河组须六段裂缝形成演化及分布预测
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摘要
利用岩心观察、地震、钻井等资料,结合川中地区构造运动背景,以龙岗地区须六段断裂构造形迹为基础,研究裂缝形成演化模式,结合岩石力学与构造地质学理论,使用数值模拟分析技术,预测该区的古构造应力场及须六段底部的裂缝发育与分布情况。结果表明:研究区裂缝主要形成于燕山运动早期和晚期,共形成了两期5组;裂缝的发育主要受断裂和构造部位的影响,分布极不均匀。该研究成果与实际生产情况匹配较好,对下一步勘探开发部署有一定的指导意义。
Based on the fracture structural features of Xu-6 member in Longgang area,using the data such as core observation,seism and drilling and combined with the tectonic movement background in central Sichuan,this paper studied the fracture forma tion evolutionary model.Meanwhile,combined with the rock mechanics and theories of structural geology and using numerical sim ulation analysis technique,this paper also predicted the paleotectonic stress field in this area and the fracture development and dis tribution in the bottom area of Xu-6 member.The results showed that the fractures in the study area were mainly formed in the ear ly and late period of the Yanshanian orogeny.Two periods five groups of fractures were formed in total.The fracture developments were mainly affected by the fault and tectonic position which led to the extremely uneven distribution.Matching well with the actu al production conditions,the study results had certain guiding significance for the further exploration and development.
Based on the fracture structural features of Xu-6 member in Longgang area,using the data such as core observation,seism and drilling and combined with the tectonic movement background in central Sichuan,this paper studied the fracture forma tion evolutionary model.Meanwhile,combined with the rock mechanics and theories of structural geology and using numerical sim ulation analysis technique,this paper also predicted the paleotectonic stress field in this area and the fracture development and dis tribution in the bottom area of Xu-6 member.The results showed that the fractures in the study area were mainly formed in the ear ly and late period of the Yanshanian orogeny.Two periods five groups of fractures were formed in total.The fracture developments were mainly affected by the fault and tectonic position which led to the extremely uneven distribution.Matching well with the actu al production conditions,the study results had certain guiding significance for the further exploration and development.
引文
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[11]疏壮志,秦启荣,苏培东.贵州宝元构造嘉五1储层裂缝预测[J].天然气工业,2004,24(3):61-64.
[12]秦启荣,张烈辉,邓辉,等.古构造应力值确定及其在构造地质建模中的应用[J].岩石力学与工程学报,2004,23(23):3979-3983.
[13]文世鹏,李德同.储层构造裂缝数值模拟技术[J].石油大学学报,1996,20(5):17-24.
[14]宋惠珍,曾海容,孙君秀,等.储层古应力场数值模拟[J].地震地质,1999,21(3):193-204.
[2]张响响,邹才能,朱如凯,等.川中地区上三叠统须家河组储层成岩相[J].石油学报,2011,32(2):257-264.
[3]童崇光.四川盆地构造演化与油气聚集[M].北京:地质出版社,1992.
[4]王泽成,赵文智,徐安娜,等.四川盆地北部大巴山山前带构造样式与变形机制[J].现代地质,2006,20(3):429-435.
[5]乐光禹.大巴山造山带及其前陆盆地的构造特征和构造演化[J].矿物岩石,1998,18(增刊1):8-15.
[6]秦启荣,周远志.赤水地区官南构造须4段气藏裂缝预测[J].天然气工业,2006,26(8):20-22.
[7]王国刚,苏培东,秦启荣.罗家寨构造嘉陵江组嘉四2段底部裂缝预测[J].岩性油气藏,2009,21(4):82-86.
[8]胡明,秦启荣,李昌全.贵州赤水地区构造特征及与裂缝发育关系研究[J].西南石油学院学报,2006,28(1):13-17.
[9]苏培东,秦启荣,黄润秋.储层裂缝预测研究现状与展望[J].西南石油学院学报,2005,27(5):14-17.
[10]丁中一,钱祥麟,霍红,等.构造裂缝定量预测的一种新方法——二元法[J].石油与天然气地质,1998,19(1):1-17.
[11]疏壮志,秦启荣,苏培东.贵州宝元构造嘉五1储层裂缝预测[J].天然气工业,2004,24(3):61-64.
[12]秦启荣,张烈辉,邓辉,等.古构造应力值确定及其在构造地质建模中的应用[J].岩石力学与工程学报,2004,23(23):3979-3983.
[13]文世鹏,李德同.储层构造裂缝数值模拟技术[J].石油大学学报,1996,20(5):17-24.
[14]宋惠珍,曾海容,孙君秀,等.储层古应力场数值模拟[J].地震地质,1999,21(3):193-204.
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