左旋走滑对十屋油田构造形态的影响及石油地质意义
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摘要
十屋油田左旋走滑构造运动开始于沙河子—营城组沉积末期,至登娄库组沉积末期时最为强烈,形成了小宽走滑带等3个NE向挤压走滑带。三维地震研究表明,十屋油田走滑构造样式并非单纯走滑,而是呈前期走滑后期伸展或前期走滑后期挤压的发育状态,出现了负花状、"F"型、反"Y"字型和正花状等构造样式。左旋走滑运动产生的构造样式不仅控制着十屋油田沉积沉降中心的发育,而且对油气的运聚也有着重要意义。
The tectonic movement of left-lateral slip in Shiwu Oilfield began from the depositional stage of Shahezi Formation to the last depositional stage of Yingcheng Formation.It became the most intense in the last depositional stage of Denglonku Formation and formed three press-slip zones to the northeast including Xiaokuan strike-slip zone.Three-dimensional seismic study shows that the strike-slip tectonic style in Shiwu Oilfield is not simply a slip,but slip in the beginning and extension in the end or slip in the beginning and pressing development in the end,and there are some kinds of tectonic styles,such as negative flower,"F" type,anti-"Y" type and positive flower.The tectonic styles produced by the movement of left-lateral slip not only control the development of the deposition and sedimentation centre,but also are meaningful to the petroleum migration and accumulation.
The tectonic movement of left-lateral slip in Shiwu Oilfield began from the depositional stage of Shahezi Formation to the last depositional stage of Yingcheng Formation.It became the most intense in the last depositional stage of Denglonku Formation and formed three press-slip zones to the northeast including Xiaokuan strike-slip zone.Three-dimensional seismic study shows that the strike-slip tectonic style in Shiwu Oilfield is not simply a slip,but slip in the beginning and extension in the end or slip in the beginning and pressing development in the end,and there are some kinds of tectonic styles,such as negative flower,"F" type,anti-"Y" type and positive flower.The tectonic styles produced by the movement of left-lateral slip not only control the development of the deposition and sedimentation centre,but also are meaningful to the petroleum migration and accumulation.
引文
①徐宏节,王秀林,韩淑霞,等.梨树断陷构造特征研究.中国石化东北油气分公司,2009.
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[1]戴俊生,李理.油区构造分析[M].东营:石油大学出版社,2002:33-59.
[2]刘和甫.沉积盆地地球动力学分类及构造样式分析[J].地球科学,1993,18(6):700-708.
[3]张延玲,杨长春,贾曙光,等.辽河油田东部凹陷中段走滑断层与油气的关系[J].地质通报,2006,25(9—10):1152-1155.
[4]韩立国.济阳坳陷构造体制转换与郯庐断裂带的关系探讨[J].岩性油气藏,2009,21(1):72-74.
[5]王燮培,费琪,张家骅.石油勘探构造分析[M].武汉:中国地质大学出版社,1990:76-88.
[6]夏义平,刘万辉,徐礼贵,等.走滑断层的识别标志及其石油地质意义[J].石油地质,2007,6(1):17-23.
[7]于慧玲.天山南地区构造样式和演化特征分析[J].石油物探,2008,47(3):277-284.
[8]徐怀民,徐朝晖,李震华,等.准噶尔盆地西北缘走滑断层特征及油气地质意义[J].高校地质学报,2008,14(2):217-222.
[9]刘玉瑞,刘启东,杨小兰,等.苏北盆地走滑断层特征与油气聚集关系[J].石油与天然气地质,2004,25(3):279-283.
[10]代瑜,林明强,徐涛,等.吐鲁番坳陷走滑断层特征探讨[J].特种油气藏,2009,16(5):20-24.
[11]张继春,彭仕宓,刘大听,等.高尚堡油田构造式样及油气分布规律[J].特种油气藏,2005,12(1):7-9.
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