柴北缘地区区带评价与目标优选
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摘要
本文参考近年柴达木盆地区域综合研究成果,对柴北缘地区重新进行了区带划分,并从构造、沉积、演化等方面对各个区带进行了综合评价与目标优选,指出了柴北缘地区下一步勘探的方向和目标:①马海—大红沟凸起在近年的勘探中已获得重大发现,但仍具有较大的勘探潜力,西段是柴北缘近期实现储量增长的现实地区,东段勘探潜力有限;②冷湖构造带利用攻关的新地震资料发现、复查了冷湖五号四高点、冷湖七号等一批有利目标,有望在东段(深层)获得新的突破,续写冷湖老油田的辉煌;③潜伏构造带油源条件优越,圈闭规模大,一旦获得成功,将形成油气大场面;④山前构造带是战略准备区,值得进一步做工作。
The paper repartitioned the region of north Qaidam margin by reference to resent integrative regional studied results of Qaidam basin,carried out integrative evaluation and targets optimization from aspects of structure,deposition and evolution and pointed out the direction and targets of next exploration: important discovery has been gained in recent years' exploration in Mahai-Dahonggou arch,but there is still large exploration potential there: west part is practical reserve-increasing region for near future,but the potential in east part is limit; ②in Lenghu structural belt,the fourth height of Lenghu No.5 structure and Lenghu No.7 structure were discovered and rechecked by using new acquired seismic data,hoping to have new breakthrough in east part (deep beds) and reappearing the bright of Lenghu depleted field; ③the hide structural belt is characteristic of abundant oil source condition and large traps,which can form a large oil field once exploration is success; ④the piedmont structural belt is strategic preparation region worth to further study.
The paper repartitioned the region of north Qaidam margin by reference to resent integrative regional studied results of Qaidam basin,carried out integrative evaluation and targets optimization from aspects of structure,deposition and evolution and pointed out the direction and targets of next exploration: important discovery has been gained in recent years' exploration in Mahai-Dahonggou arch,but there is still large exploration potential there: west part is practical reserve-increasing region for near future,but the potential in east part is limit; ②in Lenghu structural belt,the fourth height of Lenghu No.5 structure and Lenghu No.7 structure were discovered and rechecked by using new acquired seismic data,hoping to have new breakthrough in east part (deep beds) and reappearing the bright of Lenghu depleted field; ③the hide structural belt is characteristic of abundant oil source condition and large traps,which can form a large oil field once exploration is success; ④the piedmont structural belt is strategic preparation region worth to further study.
引文
[1]翟光明等.中国石油地质志(卷十四)——青藏油气区.北京:石油工业出版社,1986
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