现代岩溶地下河成因研究对塔北奥陶系大型岩溶缝洞体储层勘探的启示——以桂林寨底岩溶地下河系统的剖析为例
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
研究现代岩溶地下河内大型缝洞空间的形成机理,可成为揭示古岩溶缝洞体储层发育的"钥匙",并指导油气勘探。根据对桂林寨底地下河系统的野外地质调查、示踪试验、物探及钻孔资料研究,基本确定了寨底地下河系统内大型岩溶缝洞发育的展布特征。认为地貌、水系、岩性、断裂等是寨底地下河管道发育的主控因素。结合三维地震技术,对塔里木盆地北部哈拉哈塘某井区晚奥陶世岩溶期岩溶进行了地质背景、古地貌、古水系及古水动力条件分析,刻画了哈拉哈塘晚奥陶世岩溶期的一条古岩溶地下河及其大型缝洞储集空间的分布。勘探结果表明在地下河管道上的钻井均获得高产。
The research to the formation mechanisms of modern karst subterranean streams can be a "key" to reveal the genesis of space distribution of reservoirs full of large paleokarstic fractures and caves, which is useful to guide oil and gas exploration. There is an underground river at Zhaidi in Guilin, Guangxi province. Based on studies of field geological survey, tracer tests, geophysical and drilling data, it has been clear how the large karstic fracture-cave space distributes within the underground network of Zhaidi River with total 10.6km length of subterranean stream pipelines. It is proved that geomorphology, stream network, lithology and faults are the factors affecting development of the underground river network. In light of the research of Zhaidi Underground River, the case is applied to analysis of a paleokarst underground river that distributes within Ordovician karst fractured-caved reservoirs in Halahatang Field,Northern Tarim Basin. The network of the paleokarst underground river and the space distribution of large karstic fracture-cave system in it are depicted according to the comprehensive analysis of karst geological background, the palaeogeomorphology, ancient water system, and ancient hydrodynamic conditions, combined with 3-D seismic technology. Exploration result has indicated the fact that economical productions are obtained in all of wells drilled in the underground river pipelines.
引文
[1]白国平.世界碳酸盐岩大油气田分布特征[J].古地理学报,2006,8(2):241-250.
    [2]Moore C H.Carbonate Reservoirs Porosity Evolution and Diagenesis in a Sequence Stratigraphic Framework[M].Amsterdam:Elsevier Science,2001.
    [3]罗平,张静,刘伟,等.中国海相碳酸盐岩油气储层基本特征[J].地学前缘,2008,15(1):36-50.
    [4]金之钧,庞雄奇,吕修祥.中国海相碳酸盐岩油气勘探[J].勘探家,1998,3(4):66-68.
    [5]徐微,陈冬梅,赵文光,等.塔河油田奥陶系碳酸盐岩油藏溶洞发育规律[J].海相油气地质,2011,16(2):34-41.
    [6]徐微,蔡忠贤,林忠民,等.塔河油田奥陶系碳酸盐岩油藏岩溶成因类型[J].海相油气地质,2012,17(1):66-72.
    [7]张学丰,李明,陈志勇,等.塔北哈拉哈塘奥陶系碳酸盐岩岩溶储层发育特征及主要岩溶期次[J].岩石学报,2012,28(3):815-826.
    [8]张希明,朱建国,李宗宇,等.塔河油田碳酸盐岩缝洞型油气藏的特征及缝洞单元划分[J].海相油气地质,2007,12(1):21-24.
    [9]张进铎.轮南古潜山碳酸盐岩储层地震属性雕刻研究[D].长春:吉林大学,2005.
    [10]王喆,夏日元,易连兴,等.西南典型地下河含水介质结构特征分析——以寨底地下河塘子厄至东究段示踪试验为例[J].西部资源,2012,7(3):70-72.
    [11]吉汝安.云贵高原岩溶地下河的研究[J].贵州地质,1990,7(2):105-112.
    [12]覃小群,蒋忠诚,李庆松,等.广西岩溶区地下河分布特征与开发利用[J].水文地质工程地质,2007,34(6):10-13.
    [13]郭纯青.中国岩溶地下河系及其水资源[J].水文地质工程地质,2001,28(5):43-45.
    [14]朱学稳,张元海,张任,等.地下河洞穴发育的系统演化[J].中国岩溶,1996,15(1):158-166.
    [15]淡永,梁彬,张庆玉,等.塔北哈拉哈塘地区奥陶系碳酸盐岩浅覆盖区岩溶储层特征与形成机理[J].石油物探,2015,54(1):90-98.

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