江苏油田G凹陷储层条件下岩石纵横波速度实验研究
|
摘要
为研究江苏油田G凹陷储层的岩石纵横波速度变化特性,采集了76块岩石样品,在实验室模拟地层温度、压力条件下干燥、饱水和饱油三种状态岩样的声波测量实验,分析了温度、压力、孔隙度和密度的变化对岩石纵横波速度的影响。结果表明,在干燥、饱水和饱油三种状态下,岩石纵横波速度呈现较好正线性相关性;压力对纵横波速度的影响大于温度的影响;岩石纵横波速度与孔隙度呈负线性相关性;岩石纵横波速度与密度呈较好幂指数关系。实验结果可以为该地区地震和测井资料反演和解释提供了重要的参考依据。
In order to research the variation property of S-wave and P-wave velocities in rocks in G sag,Jiangsu Oilfield,76 pieces of rock samples were collected.In the laboratory where it simulated the underground pressure and temperature,the sonic velocities of the rocks had been tested under the three conditions: dry,water saturated and oil saturated,and the influence of variations in temperature,pressure,porosity and density to the S-wave and P-wave velocities in rocks were analyzed.The results showed that under the above three conditions,the relationship between the S-wave and P-wave velocities in rocks was linear correlation;the pressure was more influential to the S-wave and P-wave velocities in rocks than the temperature was;the S-wave and P-wave velocities in rocks had a negative linear correlation with the porosity;the relationship between S-wave and P-wave velocities in rocks and the density showed power exponent relation.The results of the experiment provided an important basis for the inversion of the seismic and well log data in that region.
In order to research the variation property of S-wave and P-wave velocities in rocks in G sag,Jiangsu Oilfield,76 pieces of rock samples were collected.In the laboratory where it simulated the underground pressure and temperature,the sonic velocities of the rocks had been tested under the three conditions: dry,water saturated and oil saturated,and the influence of variations in temperature,pressure,porosity and density to the S-wave and P-wave velocities in rocks were analyzed.The results showed that under the above three conditions,the relationship between the S-wave and P-wave velocities in rocks was linear correlation;the pressure was more influential to the S-wave and P-wave velocities in rocks than the temperature was;the S-wave and P-wave velocities in rocks had a negative linear correlation with the porosity;the relationship between S-wave and P-wave velocities in rocks and the density showed power exponent relation.The results of the experiment provided an important basis for the inversion of the seismic and well log data in that region.
引文
[1]Wang Zhijing.Fundamentals of seismic rock physics[J].Geophysics,2001,66(2):398~412.
[2]贺振华,李亚林,曹钧,等.地层温压条件下超声波测试技术[J].勘探地球物理进展,2003,26(2):84~87.
[3]Timur A.Temperature dependence of compressionaland shear wave velocities in rocks[J].Geophysics,1977,42:950~976.
[4]Batzle M,Wang Z.Seismic properties of pore fluids[J].Geophysics.1992,57:1385~1407.
[5]史謌,杨东全.岩石波速和孔隙度、泥质含量之间的关系研究[J].北京大学学报(自然科学版),2001,37(3):379~384.
[6]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):391~399.
[7]卢琳,闫桂京,陈建文.地层温度和压力对地震速度的影响[J].海洋地质动态,2005,21(9):13~16.
[8]高龙生.中国大陆岩石标本在高压下的弹性波波速研究[J].地球物理学报,1975,29(2):56~68.
[9]李爱兵,马丽云.频率、温度对砂岩的横波速度和值的影响[J].地球物理学报,1994,37(5):653~658.
[10]刘祝萍,吴小薇,楚泽涵.岩石声学参数等会实验测量及研究[J].地球物理学报,1994,37(5):659~666.
[11]刘斌.不同围压下孔隙度不同的干燥及水饱和岩样中的纵横波速度及衰减[J].地球物理学报,1998,41(4):537~546.
[12]李洁,李光书.储层温压条件下岩石的波速特性及变化规律[J].工程地球物理学报,2009,6(6):765~768.
[13]施行觉,夏从俊.储层条件下波速的变化规律及其影响因素的实验研究[J].地球物理学报,1998,41(2):234~241.
[14]云美厚,管志宁.储层温压变化与油藏地震监测[J].地球物理学进展,2003,18(1):156~159.
[15]刘光鼎,李幼铭,吴永刚,等.陆相油储地震物理学导论[M].北京:科学出版社,1998.
[2]贺振华,李亚林,曹钧,等.地层温压条件下超声波测试技术[J].勘探地球物理进展,2003,26(2):84~87.
[3]Timur A.Temperature dependence of compressionaland shear wave velocities in rocks[J].Geophysics,1977,42:950~976.
[4]Batzle M,Wang Z.Seismic properties of pore fluids[J].Geophysics.1992,57:1385~1407.
[5]史謌,杨东全.岩石波速和孔隙度、泥质含量之间的关系研究[J].北京大学学报(自然科学版),2001,37(3):379~384.
[6]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):391~399.
[7]卢琳,闫桂京,陈建文.地层温度和压力对地震速度的影响[J].海洋地质动态,2005,21(9):13~16.
[8]高龙生.中国大陆岩石标本在高压下的弹性波波速研究[J].地球物理学报,1975,29(2):56~68.
[9]李爱兵,马丽云.频率、温度对砂岩的横波速度和值的影响[J].地球物理学报,1994,37(5):653~658.
[10]刘祝萍,吴小薇,楚泽涵.岩石声学参数等会实验测量及研究[J].地球物理学报,1994,37(5):659~666.
[11]刘斌.不同围压下孔隙度不同的干燥及水饱和岩样中的纵横波速度及衰减[J].地球物理学报,1998,41(4):537~546.
[12]李洁,李光书.储层温压条件下岩石的波速特性及变化规律[J].工程地球物理学报,2009,6(6):765~768.
[13]施行觉,夏从俊.储层条件下波速的变化规律及其影响因素的实验研究[J].地球物理学报,1998,41(2):234~241.
[14]云美厚,管志宁.储层温压变化与油藏地震监测[J].地球物理学进展,2003,18(1):156~159.
[15]刘光鼎,李幼铭,吴永刚,等.陆相油储地震物理学导论[M].北京:科学出版社,1998.
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