车镇凹陷车古201潜山形成过程的构造物理模拟
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摘要
在对车古201潜山的三维地震剖面进行解释分析和构造反演的基础上,根据构造模型和相似理论,用砂箱模型模拟了对该区潜山的构造特征及演化过程。结果表明:a.车古201区的主控断层形态具有上部铲式,深部坡坪式的构造特点,正是这样的边界特点造就了本区的潜山构造;b.主控断层坡折带处的逆断层是在伸展作用下由正断层倒转形成的;c.本区的复杂构造变形是正断层上盘变形和柔性基底不均匀伸展的复合作用结果。
Based on the explanation and structural inversion on the 3D seismic profiles which crossing Chegu201 buried hill, a series of sandbox experiments had been finished. The results of experiment show: a. The spade faults and the deep ramp-flat faults in the structure are the specific characters of the main fault of Chegu201, and these specific characters formed the burial hill structure of this area; b. The reverse fault occurring the slope break area of primary fault was formed as a result of inversion of normal fault in extension; c. The complex structure distortion of this area is caused by compound function of hanging wall distortion of normal fault and non-homogeneous extension of flexible basement rock.
Based on the explanation and structural inversion on the 3D seismic profiles which crossing Chegu201 buried hill, a series of sandbox experiments had been finished. The results of experiment show: a. The spade faults and the deep ramp-flat faults in the structure are the specific characters of the main fault of Chegu201, and these specific characters formed the burial hill structure of this area; b. The reverse fault occurring the slope break area of primary fault was formed as a result of inversion of normal fault in extension; c. The complex structure distortion of this area is caused by compound function of hanging wall distortion of normal fault and non-homogeneous extension of flexible basement rock.
引文
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[3] 宋传春,蔡忠东,徐洪泽.济阳坳陷车3潜山油气勘探新发现[J].新疆石油地质,1999,20(2):96-100.
[4] 王颖,王英民,赵锡奎等.车古201潜山的构造演化及与油气成藏的关系[J].西安石油学院学报(自然科学版),2003,18(6):1720.
[5] 王玉芹,王军,范崇海等.车镇凹陷富台油田古生界潜山裂缝评价[J].油气地质与采收率,2002,9(3):3436.
[6] 周建勋,朱战军,梁慧社.斜向挤压构造的物理模拟及其对焉耆盆地构造解释[J].煤田地质与勘探,2002,30(5):57.
[7] 童亨茂,,陆克政,漆家福.张巨河复杂断块区构造变形物理模拟[J].石油大学学报(自然科学版)1997,21(3):1215.
[8] 周建勋,漆家福,童享茂.盆地构造中的砂箱模拟实验方法[M].地震出版社,1999.
[9] 彭苏萍,孟召平,李玉林.断层对顶板稳定性影响相似模拟试验研究[J].煤田地质与勘探,2001,29(3):14.
[10] 漆家福,GroshongRHJr,杨桥.用面积平衡原理预测伸展断陷盆地中岩层内部应变及亚分辨正断层的方法[J].地球科学,2002,27(6):6977023.
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