深层富钾卤水的地球物理探测技术及应用——以江陵凹陷为例
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
上世纪在江陵凹陷的石油钻孔中发现了深层富钾卤水矿层,但是卤水矿层的空间展布一直不清。借用油气勘探领域中地球物理储层预测方法和理论,利用钻孔对矿层的垂向高分辨率的识别,标定到三维地震剖面上,利用多种地震属性横向高分辨率识别卤水矿层,预测矿层的空间分布,为靶区钻孔的部署提供依据。文章利用已经发现富钾卤水矿层的路9井的资料,开展模型正演,发现地震中振幅、频率、波形等属性可以较好地识别卤水矿层;将路9井的卤水矿层标定到地震剖面上,通过提取地震属性,识别出的富钾卤水矿层平面面积达5.53 km2;在该富钾卤水区中部署的岗钾1井,钻探获得高产富钾卤水矿层,验证了地球物理探测深层富钾卤水方法的正确性。
Large quantities of deep potassium-rich brine seams were found in the petroleum drill holes in the Jianglin Depression in the last century; nevertheless,spatial distribution of the brine deposits remain unknown.On the basis of geophysical methods and theories used in reservoir prediction of hydrocarbon exploration,spatial distribution of the brine deposits can be predicted by identifying brine seams utilizing high lateral resolution of multiple seismic attributes which have been calibrated in 3-D seismic profile by diagnosing high vertical resolution of the brine deposits using drilling holes,so as to provide the basis for drilling brine wells in the target area.Using data from Well Lu-9in which potassium-rich brine seams had been found,the authors performed forward modeling in this study.It is shown that the brine seams can be identified utilizing such seismic attributes as amplitude,frequency,and wave pattern,that through calibrating the brine seams of Well Lu-9 in a seismic profile,the identified brine seams exhibit an planar area of 5.53 km2 based on extraction of seismic attributes,and that the geophysical method could be correctly verified for investigation of deep potassium-rich brines by encountering productive potassium-rich brine seams in Well Gangjia-1 which was drilled in the middle part of an identified potassium-rich brine area.
引文
陈波,肖秋苟,曹卫生,赵海涛.2007.江汉盆地潜江组与沙市组盐间非砂岩油气藏勘探潜力对比[J].石油勘探与开发,34(2):190-196.
    黄华,刘亚伟,彭伟.2011.江陵古近纪盐盆地富钾卤水[R].内部报告.武汉:江汉油田分公司勘探开发研究院.
    林耀庭,颜仰基,吴应林.1996.四川盆地某地富矿卤水水文地球化学特征及其成因资源意义[J].岩相古地理,16(4):12-22.
    刘成林,焦鹏程,王弭力,陈永志.2007.罗布泊盐湖巨量钙芒硝沉积及其成钾效应分析[J].矿床地质,26(3):322-329.
    刘成林,焦鹏程,王弭力.2010.盆地钾盐找矿模型探讨[J].矿床地质,29(4):581-592.
    刘成林.2013.大陆裂谷盆地钾盐矿床特征与成矿作用[J].地球学报,34(5):515-527.
    卢明国,陈凤玲,刘俊.2007.江汉盐湖盆地沉积特征[J].中国矿业,16(4):102-104.
    王春连,刘成林,胡海兵,毛劲松,沈立建,赵海彤.2012.江汉盆地江陵凹陷南缘古新统沙市组四段含盐岩系沉积特征及其沉积环境意义[J].古地理学报,14(2):165-175.
    王春连,刘成林,徐海明,王立成,张林兵.2013.江陵凹陷古新世盐湖沉积碳酸盐碳氧同位素组成及其环境意义[J].地球学报,34(5):567-576.
    王弭力,刘成林,焦鹏程,韩蔚田,宋松山,陈永志,杨智琛,樊卫东,李廷祺,李长华,冯金星,陈建忠,王新民,于志鸿,李亚文.2001.罗布泊盐湖钾盐资源[M].北京:地质出版社.
    徐国盛,陈美玲,刘为,孟昱璋,杨朋,胡永宏,彭敬成,王宪刚,黄小琼.2012.川西地区雷口坡组岩相古地理与富钾卤水预测[J].矿床地质,31(2):309-322.
    阎建国,侯磊,赵玉红,杨晓玉.2013.地震勘探方法在川东深层富钾卤水勘探中的应用[J].中国工程科学,15(10):59-65.
    张嘉澍,李官贤.1980.云南江城勐野井钾盐矿床地质特征[A].见:云南省地质局钾盐地质科学研究队编.云南思茅地区钾盐地质研究论文集[C].38-44.
    赵政璋,赵贤正,王英民.2005.储层地震预测理论与实践[M].北京:科学出版社.1-423.
    朱允铸,钟坚华,吴必豪,刘成林.1990.阿尔金山上升史与塔里木、柴达木成盐关系初探[J].石油与天然气地质,11(2):136-143.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心