【摘要】 柴达木盆地三湖地区第四系生物气具有自生自储和埋藏时间短的特点。区内新构造运动弱,地层褶皱变形轻微。在稳定构造应力作用下,第四系中发育大量的继承性小幅度同沉积构造。长期以来,地震等勘探方法始终面临"小幅度构造难发现,薄层砂体难识别"的问题。为解决此问题,需寻找新的勘探方法和思路,以便为进一步钻探提供有效圈闭。根据新构造在地表与地下具有继承性发育的特点,通过利用ASTER,IRS-P5和QuickBird等中高分辨率遥感数据,同时结合地面测量和综合评价方法,在三湖地区进行了详细的正地形研究,为勘探目标的选择提供了较详尽的地形依据。更多还原

【Abstract】 The Quaternary biogas in the Three Lakes area of the Qaidam Basin is characterized by authigenetic self-stored reservoirs,short burial time,weak tectogenesis and slight stratigraphic deformation.There are a lot of synsedimentary inherited low amplitude structures in Quaternary strata caused by the stable tectonic stress within the study area.The seismic prospecting work is encountered with the problem that it is difficult to discover low amplitude structures and recognize thin-layer sand bodies.The absence of effective traps which can be provided for the exploration is the key trouble which has hindered the breakthrough of the natural gas exploration in this area.It is urgent to consider new exploration methods and thinking for natural gas exploration.Considering the inherited evolution character of the structures between the Earth’s surface and the depth,the authors utilized the high precision remote sensing technique to interpret and map the Earth’s surface so as to find out the structure on the Earth’s surface.The new high resolution remote sensing data were utilized to interprete the raised terrain in combination with the survey of the landform and the integrated evaluation,and the results provide fairly detailed ground support for the selection of exploration targets in the Three Lakes area.更多还原