库车坳陷西秋构造带盐下低幅度构造圈闭研究及勘探思路
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摘要
库车坳陷西秋构造带资料解释存在"浅T8"解释方案和"深T8"解释方案的争论,地震层位的不同地质层位确定,造成盐下构造的解释方案、圈闭性质及大小、高点埋藏深度存在很大差异,导致西秋构造油气勘探思路和部署引向截然不同的方向。综合地震、地质和测井资料分析,西秋构造带古近系盐层内部的稳定地震反射层是盐层内部膏泥岩的反射,而不是白垩系砂泥岩的反射。因此,西秋构造带不存在大型盐下构造圈闭的可能,应该立足于"西秋构造带的盐下构造为北倾单斜带上的低幅度构造圈闭"认识,进行西秋构造带盐下圈闭油气勘探的整体部署。
There is a dispute between two options---"Shallow T8"and Deep T8"for data interpretation of Xiqiu structural belt,Kuqa Depression.Determination of different geological horizons of seismic horizons resulted in the huge difference in interpretation options,trap property and size,and burial depth of highs of subsalt structure.So the oil and gas exploration idea and deployment of Xiqiu structural belt were altered completely.Synthesizing seismic,geological and logging data showed that seismic reflection layers were not the reflection of Cretaceous sandstone and mudstone,but the gypsum mudstone inside the Palaeogene salt bed of Xiqiu structural belt.Therefore,no large subsalt structural traps were likely to exist in the structural belt.Overall deployment should be carried out for oil and gas exploration in subsalt traps,based on the recognition that "the subsalt structure of Xiqiu structural belt is low-amplitude structural trap at the monoclinic belts tilting to the north"
There is a dispute between two options---"Shallow T8"and Deep T8"for data interpretation of Xiqiu structural belt,Kuqa Depression.Determination of different geological horizons of seismic horizons resulted in the huge difference in interpretation options,trap property and size,and burial depth of highs of subsalt structure.So the oil and gas exploration idea and deployment of Xiqiu structural belt were altered completely.Synthesizing seismic,geological and logging data showed that seismic reflection layers were not the reflection of Cretaceous sandstone and mudstone,but the gypsum mudstone inside the Palaeogene salt bed of Xiqiu structural belt.Therefore,no large subsalt structural traps were likely to exist in the structural belt.Overall deployment should be carried out for oil and gas exploration in subsalt traps,based on the recognition that "the subsalt structure of Xiqiu structural belt is low-amplitude structural trap at the monoclinic belts tilting to the north"
引文
1杨书江、李同彬,西秋构造带CEMP勘探成果报告,2007。
[1]梁顺军,肖宇,杨晓,等.库车坳陷盐相关构造建模新进展[J].中国石油勘探,2010,15(6):10～20.
[2]张友焱,雷迎春,叶勇,等.利用高精度遥感信息辅助设计检波器点位[J].石油地球物理勘探,2009,44(1):7～13.
[3]张晓斌,罗卫东,唐涛,等.西部地区复杂山地地震采集技术[J].天然气工业,2007,27(增刊A):67～69.
[4]张朝军,贾承造,邹才能,等.西秋构造带盐下构造圈闭及其天然气成藏条件[J].天然气工业,2010,30(8):1～3.
[5]汤良杰,万桂梅,王清华,等.库车西秋里塔格构造带中、新生代构造演化[J].西南石油大学学报,2008,30(2):167～171.
[6]邬光辉,蔡正忠,赵宽志,等.塔里木盆地库车坳陷盐构造成因机制探讨[J].新疆石油地质,2006,24(2):182～186.
[7]李涛.低幅度构造识别技术在南美奥连特盆地油气勘探中的应用[J].中国石油勘探,2010,15(1):48～51.
[8]梁顺军.平衡观点与地震观点的解释效果分析与评价[J].石油物探,2002,41(3):377～384.
[1]梁顺军,肖宇,杨晓,等.库车坳陷盐相关构造建模新进展[J].中国石油勘探,2010,15(6):10～20.
[2]张友焱,雷迎春,叶勇,等.利用高精度遥感信息辅助设计检波器点位[J].石油地球物理勘探,2009,44(1):7～13.
[3]张晓斌,罗卫东,唐涛,等.西部地区复杂山地地震采集技术[J].天然气工业,2007,27(增刊A):67～69.
[4]张朝军,贾承造,邹才能,等.西秋构造带盐下构造圈闭及其天然气成藏条件[J].天然气工业,2010,30(8):1～3.
[5]汤良杰,万桂梅,王清华,等.库车西秋里塔格构造带中、新生代构造演化[J].西南石油大学学报,2008,30(2):167～171.
[6]邬光辉,蔡正忠,赵宽志,等.塔里木盆地库车坳陷盐构造成因机制探讨[J].新疆石油地质,2006,24(2):182～186.
[7]李涛.低幅度构造识别技术在南美奥连特盆地油气勘探中的应用[J].中国石油勘探,2010,15(1):48～51.
[8]梁顺军.平衡观点与地震观点的解释效果分析与评价[J].石油物探,2002,41(3):377～384.
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