储层速度和密度与孔隙度、泥质含量以及含水饱和度的关系
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摘要
油气储层速度和密度与储层参数的关系对地震资料解释以及储层参数预测等具有重要的意义。利用WX地区实际测井解释数据,就声波时差、密度与孔隙度、泥质含量以及含水饱和度之间的相互关系进行了多元线性回归分析。结果表明,用密度参数可以获得较为理想的线性回归方程,而用声波时差参数难以获得合理的回归方程。这说明密度与各储层参数之间具有较好的线性关系,而声波时差或速度与储层参数之间的相互关系要复杂得多。
The relations of velocity and density with reservoir parameters are crucial to seismic data interpretation and reservoir parameters prediction. Relations of sonic interval transit time and density with porosity, clay content and water saturation are studied by multivariate regression analysis using acoustic logging interpretation data in WX area Better linear regression equations are achieved for density, but for sonic interval transit time it is difficult to get reasonable linear regression equations. It shows that density has a better linear relation with different reservoir parameters, but the relation of sonic interval transit time or velocity with reservoir parameters is very complicated.
The relations of velocity and density with reservoir parameters are crucial to seismic data interpretation and reservoir parameters prediction. Relations of sonic interval transit time and density with porosity, clay content and water saturation are studied by multivariate regression analysis using acoustic logging interpretation data in WX area Better linear regression equations are achieved for density, but for sonic interval transit time it is difficult to get reasonable linear regression equations. It shows that density has a better linear relation with different reservoir parameters, but the relation of sonic interval transit time or velocity with reservoir parameters is very complicated.
引文
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12桂志先,朱广生,熊心斌,等.孔隙度与纵横波速度间的关系及其在孔隙度预测中的应用[J].石油物探,1998,37(2) :36-40
13李艳华,楚泽涵.含油气层纵波速度与孔隙度、泥质含量和含水饱和度的关系[J].测井技术,2000,24(3) :183～187
14雍世和,洪有密.测井资料综合解释与数字处理[M].北京:石油工业出版社,1982． 17-24
15杨文采.地球物理反演和地震层析成象[M].北京:地质出版社,1989． 39-44
2蔺景龙,吉寿松,云美厚.油田开发应用地球物理[M].北京:石油工业出版社,1996． 298-335
3 肖万春.影响纵横波速度的几种因素[J].石油物探译丛,1985,(6) :57～63
4布尔贝,库索,甄斯纳.孔隙介质声学[M].许云译.北京:石油工业出版社,1994． 88页
5 Gregory A R. Fluid saturation effects on dynamic elastic properties of sedimentary rock[J]. Geophysics, 1976, 41(5) : 895-921
6 Domenico S N. Effect of brine-gas mixture on velocity in an unconsolidated sand reservoir[J]. Geophysics, 1976, 41(5) : 882-894
7 Castagna J P, Batzle M L,Eastwood R L. Relationships between compressional-wave and shear-wave velocities in clastic silicate rocks[J]. Geophysics, 1985, 50(4) : 571-581
8 Han D H,Nur A. The effects of porosity and clay content on wave velocities in sandstones[J]. Expanded Abstract of 56th Annual International SEG Mtg , 1986,1-3
9 Eberhart-Phillips D, Han D H,Zoback M D. Empirical relationships among seismic velocity, effective pressure, porosity, and clay content in sandstone[J]. Geophysics,1989, 54(1) :82-89
10沈联蒂,史謌.岩性、含油气性、有效覆盖压力对纵横波速度的影响[J].地球物理学报,1994,37(3) :391-398
11刘传虎,赵玉华,王志高.CX地区含油储层地震反射特征及油气预测效果[J].石油物探,1997,36(1) :13～20
12桂志先,朱广生,熊心斌,等.孔隙度与纵横波速度间的关系及其在孔隙度预测中的应用[J].石油物探,1998,37(2) :36-40
13李艳华,楚泽涵.含油气层纵波速度与孔隙度、泥质含量和含水饱和度的关系[J].测井技术,2000,24(3) :183～187
14雍世和,洪有密.测井资料综合解释与数字处理[M].北京:石油工业出版社,1982． 17-24
15杨文采.地球物理反演和地震层析成象[M].北京:地质出版社,1989． 39-44
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