纵横波速度联合预测地层压力的方法及应用

王斌，雍学善，潘建国，滕团余，尹路，许多年，黄玉，孔旭

doi:10.11764/j.issn.1672-1926.2015.02.0367

天然气地球科学 >

2015 , Vol. 26 >Issue 2: 367 - 370

DOI: https://doi.org/10.11764/j.issn.1672-1926.2015.02.0367

天然气勘探

纵横波速度联合预测地层压力的方法及应用

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中国石油勘探开发研究院西北分院，甘肃兰州 730020

王斌（1985-），男，甘肃会宁人，工程师，硕士，主要从事测井技术与沉积储层研究. E-mail:wangbin_xds@petrochina.com.cn.

收稿日期: 2013-12-27

修回日期: 2014-03-16

网络出版日期: 2015-02-10

基金资助

国家重大专项专题“天然气复杂储层预测与烃类检测地球物理技术研究和应用”（编号：2011ZX05007-006）资助.

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Methods and Application of the Formation Pressure Forecast Combining V_pand V_s

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Northwest Branch of Research Institute of Petroleum Exploration & Development,CNPC,Lanzhou 730020,China

Received date: 2013-12-27

Revised date: 2014-03-16

Online published: 2015-02-10

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摘要

研究表明，在页岩气中无论是游离气含量还是吸附气含量都随着地层压力的增加而增加，因此开展精细的地层压力预测对提高页岩气的产量有重要意义。目前主要利用纵波速度随着地层压力的升高而降低的特点开展压力预测，但是地层纵波速度的变化并不仅仅由地层压力的变化决定，因此为了建立高精度的地层压力预测模型，分别从杨氏模量和体积模量的定义出发,结合波动方程推导了有效应力与纵波、横波速度之间的关系，开发出了一种新的预测地层压力的方法——弹性参数联合法来计算地层压力。该方法通过引入横波速度，降低了压力预测的多解性，提高了预测的精度，并在页岩气地层中取得了良好的应用效果。

关键词： 横波速度; 弹性模量; 纵波速度; 有效应力; 异常压力

本文引用格式

王斌，雍学善，潘建国，滕团余，尹路，许多年，黄玉，孔旭 . 纵横波速度联合预测地层压力的方法及应用[J]. 天然气地球科学, 2015 , 26(2) : 367 -370 . DOI: 10.11764/j.issn.1672-1926.2015.02.0367

Abstract

It suggests that the shale gas content,regardless of the free gas or the adsorbed one,increases with the formation pressure.Therefore,it is of significance to carry out the fine formation pressure forecast to improve the shale gas production.Current studies on the pressure forecast are mainly based on the fact that the P-wave velocity decreases with the increasing formation pressure.The P-wave velocity change,however,depends not just on the formation pressure change.So in order to build a high-precision forecast model of the formation pressure,we start with the definition of the Young′s and Bulk modulus,deduce the relationship between the effective stress and the V_p and V_s combined with the wave equation,and develop a new forecast method,Elastic Parameters Combination,to calculate the formation pressure.By introducing the S-wave velocity,this method reduces the multiplicity of the pressure forecast,improves the accuracy,and demonstrates its effectiveness through the application on the shale gas strata.
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Key words： S-wave velocity; Elastic modulus; P-wave velocity; Effective stress; Abnormal pressure

参考文献

［1］Pennebaker.Seismic data depth magnitude of abnormal pressure[J].World Oil,1968,(6):73-77.
[2]Yang Fan,Yu Xinghe,Li Shengli,et al.Distribution characteristics of fluid pressure in Lixian slope,Raoyang Sub-basin and its impact on hydrocarbon accumulations[J].Natural Gas Geoscience,2010,21(5):809-814.\[杨帆,于兴河,李胜利,等.饶阳凹陷蠡县斜坡地层流体压力分布规律及其对油气成藏的影响[J].天然气地球科学,2010,21(5):809-814.]

[3]Zhu Jianjun,Zhang Xiaobao,Zhang Gongcheng,et al.A study of abnormal pressure distribution and formation mechanism in Qiongdongnan Basin[J].Natural Gas Geoscience,2011,22(2):324-330.\[祝建军,张晓宝,张功成,等.琼东南盆地异常压力分布于形成机理探讨[J].天然气地球科学,2011,22(2):324-330.]
[4]Wang Haiying,Liu Huang,Chang Lunjie,et al.Comparison and development of predictive models for dew point pressure of gas condensate reservoir fluids[J].Natural Gas Geoscience,2013,24(4):853-858.\[王海应,刘煌,昌伦杰,等.凝析气藏流体露点压力预测模型对比与开发[J].天然气地球科学,[HJ]2013,24(4):853-858.]
[5]Han D H,Nur A,Morgan D.Effect of porosity and clay content on wave velocities in sandstone[J].Geophysics,1986,51(11):2093-2107.
[6]Liu Wenlin.Production Seismic Technique[M].Beijing:Petroleum Industry Press,1996.[刘雯林.油气田开发地震技术[M].北京:石油工业出版社,1996.]
[7]Terzaghi K.Theoretical Soil Mechanics[M].New York:John Wiley and Sons Inc,1943.
[8]Liu Zhen.Reservoir Seismic Stratigraphy[M].Beijing:Geological Publishing House,1997.[刘震.储层地震地层学[M].北京:地质出版社,1997.]
[9]Shao Xinjun,Xu Yun,Lv Zhongfeng,et al.A Discussion about the methods for predicting pore pressure[J].Petroleum Exploration and Development,2000,27(3):100-102.\[邵新军,许昀,吕中锋,等.地层流体压力预测方法的讨论[J].石油勘探与开发,2000,27(3):100-102.]
[10]Zhang Rongzhong.Summary of abnormal reservoir pressure seismic prediction techniques[J].Petroleum Geophysics,2005,3(2):39-45.[张荣忠.异常地层压力地震预测技术综述[J].油气地球物理,2005,3(2):39-45.]
[11]Wang Xiang,Liu Yuhua,Zhang Min,et al.Conditions of formation and accumulation for shale gas[J].Natural Gas Geoscience,2010,21(2):350-356.[王祥,刘玉华,张敏,等.页岩气形成条件及成藏影响因素研究[J].天然气地球科学,2010,21(2):350-356.]
[12]Wang Zhizhan,Gai Shanshan,Xu Aisheng.Two new methods based on DC exponent for abnormal pressure prediction and detection during drilling[J].Journal of Central South University:Science and Technology,2012,43(4):1429-1433.[王志站,盖姗姗,徐爱生.基于DC指数的2种异常压力随钻预监测新方法[J].中南大学学报:自然科学版,2012,43(4):1429-1433.]

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