| 蜀南地区茅口组古岩溶识别标志及储层预测 |
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| 作者姓名： | 桑琴 黄静 程超 吴昌龙 彭祚远 |
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| 作者单位： | 西南石油大学资源与环境学院;中国石油西南油气田公司蜀南气矿 |
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| 基金项目： | 四川省重点学科建设项目(SZD0414) |
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| 摘 要： | 为预测蜀南地区茅口组储层,通过地质、钻井与岩心观察,地震及测井、地化指标分析等方法确定古岩溶发育状况,结合生产测试资料分析古岩溶储层在地震和测井上的响应特征.结果表明:该区主要储集空间类型为裂缝—溶洞型;储层地震响应总体表现为地震波的异常反射、相干剖面的不连续性及速度反演出现低速区;测井响应表现为深、浅侧向电阻率降低且出现正差异,密度减小,中子孔隙度和声波时差增大,而井径和自然伽马曲线的变化受空隙充填控制.该结果对该区储层预测及油气勘探具有指导意义.
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| 关 键 词： | 蜀南地区 茅口组 古岩溶 识别标志 储层预测 地震解释 测井 |
Maokou paleokars interpretation in Shunan and application of seismic and logging technology in reservoir prediction |
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| Authors: | SANG Qin HUANG Jing CHENG Chao WU Chang-long PENG Zuo-yuan |
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| Institution: | 1.Resource and Environment Institute,Southwest Petroleum University,Chengdu,Sichuan 610500,China;2.Shunan Gas Field,PetroChina Southwest Oil and Gas Field Company,Luzhou,Sichuan 646001,China) |
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| Abstract: | In order to predict Maokou reservoir in Shunan area for guiding the gas exploration and exploitation,on the basis of geology,well drilling,geophysical and geochemical,study of paleokars’ seismic and log response characteristics with conduction test date is carried out.The result confirmed not only that the main reservoir space type is fissure-hole type,but also summarized limestone cave and fissure’s specific response characteristics on seismic and log.Further reservoir prediction found that anomalous reflection of seismic wave,discontinuous of coherent profile and low speed region in velocity inversion profile are the seismic response of reservoir,and it generally displays log interpretation characteristics as follow,both RD and RS reduce with obvious positive range difference,DEN reduces,CNL and AC broaden,while CAL and GR is controlled by the hole’s filling degree. |
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| Keywords: | Shunan region Maokou paleokars recognition marks reservoir prediction seismic interpretation logging |
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