A Study on Acoustic Velocity and Resistivity of Rocks in CO2/Natural Gas Accumulation

doi:10.11885/j.issn.1674-5086.2015.06.06.25

Abstract

Abstract: The complicated geological conditions of sea basins cause difficulties in natural gas exploration. The resistance and acoustic test of rocks of natural gas accumulation under high temperature and high pressure is essential for natural gas exploration and development. This study introduced a test of resistivity and acoustic properties of core samples that were displaced by various proportions of gas/CO₂ mixture at various saturations using an SCMS-E core multi-parameter instrument with various pressures and temperatures and a maximum temperature of 180℃ and a maximum pore pressure of 50 MPa. We also used the instrument to test the change in acoustic velocity of the dry samples that were filled with the gas/CO₂ mixture of various proportions. The experimental results showed that the saturation exponent of the saturated samples changed slightly when the content of CO₂ in the displacing mixture changed, but the cementation factor remained almost unchanged. The longitudinal acoustic velocity of the dry core samples filled with gas/CO₂ mixture decreased with increases in CO₂ content. The change in shear acoustic velocity variation was not obvious when the CO₂ content changed. The test results were consistent with the analysis results by the Gassmann equation and the Batzle empirical equation.

Key words: high pressure and temperature, acoustic velocity, saturation exponent, cementation factor, Gassmann equation

CLC Number:

TE122
TE311

ZHOU Jiaxiong, HE Shenglin, CHEN Yijian, CAI Maojia, DU Xiangyong. A Study on Acoustic Velocity and Resistivity of Rocks in CO₂/Natural Gas Accumulation[J]. 西南石油大学学报(自然科学版), 2017, 39(1): 73-79.

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References

[1] 刘之的,夏宏泉,陈福煊,等. 岩电实验过程中误差产生的原因及校正方法研究[J]. 测井技术, 2003, 27(4):274-277. doi:10.3969/j.issn.1004-1338.2003.04.004 LIU Zhidi, XIA Hongquan, CHEN Fuxuan, et al. Causes leading to errors in core electricity experiments and their corrections[J]. Well Logging Technology, 2003, 27(4):274-277. doi:10.3969/j.issn.1004-1338.2003.04.004
[2] 王建,吕成远,胡永华,等. 地层条件下岩石电性特征实验研究[J]. 石油勘探与开发, 2004, 31(1):113-115. doi:10.3321/j.issn:1000-0747.2004.01.036 WANG Jian, LÜ Chengyuan, HU Yonghua, et al. Experiment of rock resistivity under formation conditions[J]. Petroleum Exploration and Development, 2004, 31(1):113-115. doi:10.3321/j.issn:1000-0747.2004.01.036
[3] 赵发展,蔡敏龙,赛飞雅. 高温高压下岩石声波及电阻率实验研究[J]. 测井技术, 1998, 22(S1):3-5. doi:10.16489/j.issn.1004-1338.1998.s1.001 ZHAO Fazhan, CAI Minlong, SAI Feiya. Acoustic and resistivity study of rock under high temperature and high pressure[J]. Well Logging Technology, 1998, 22(S1):3-5. doi:10.16489/j.issn.1004-1338.1998.s1.001
[4] 王勇,章成广,李进福,等. 岩电参数影响因素研究[J]. 石油天然气学报(江汉石油学院学报), 2006, 28(4):75-77. doi:10.3969/j.issn.1000-9752.2006.04.021 WANG Yong, ZHANG Chengguang, LI Jinfu, et al. Study on influencing factors of lithological-electrical parameters[J]. Journal of Oil and Gas Technology (Journal of Jianghan Petroleum Institute), 2006, 28(4):75-77. doi:10.3969/j.issn.1000-9752.2006.04.021
[5] 赵军,刘兴礼,李进福,等. 岩电参数在不同温度、压力及矿化度时的实验关系研究[J]. 测井技术, 2004, 28(4):269-272. doi:10.3969/j.issn.1004-1338.2004.04.001 ZHAO Jun, LIU Xingli, LI Jinfu, et al. On experimental relations of parameters m and n with different temperatures, pressures and salinities[J]. Well Logging Technology, 2004, 28(4):269-272. doi:10.3969/j.issn.1004-1338.2004.04.001
[6] 范泓澈,黄志龙,袁剑,等. 高温高压条件下甲烷和二氧化碳溶解度试验[J]. 中国石油大学学报(自然科学版),2011,35(2):6-11,19. doi:10.3969/j.issn.1673-5005.2011.02.002 FAN Hongche, HUANG Zhilong, YUAN Jian, et al. Experiment on solubility of CH₄ and CO₂ at high temperature and high pressure[J]. Journal of China University of Petroleum, 2011, 35(2):6-11, 19. doi:10.3969/j.issn.1673-5005.2011.02.002
[7] 陈信平,刘素红. 浅谈Gassmann方程[J]. 中国海上油气(地质), 1996, 10(2):122-127. CHEN Xinping, LIU Suhong. An preliminary introduction to Gassmann equation[J]. China offshore Oil and Gas(Geology), 1996, 10(2):122-127.
[8] 张金强,马中高,曲寿利,等. 碳酸盐岩储层流体替换中混相流体体积模量的计算[J]. 石油物探, 2012, 51(2):133-137. doi:10.3969/j.issn.1000-1441.2012.02.004 ZHANG Jinqiang, MA Zhonggao, QU Shouli, et al. Calculation of bulk modulus for mixed-phase fluid in fluid substitution for carbonate reservoir[J]. Geophysical Prospecting for Petroleum, 2012, 51(2):133-137. doi:10.3969/j.issn.1000-1441.2012.02.004
[9] 孙璞. 基于Gassmann方程流体替换方法研究及其应用[D]. 荆州:长江大学, 2014. SUN Pu. Method research and application of the fluid substitution based on Gassmann equation[D]. Jinzhou:Yangtze University, 2014.
[10] BATZLE M, WANG Z. Seismic properties of pore fluids[J]. Geophysics, 1992, 57(11):1396-1468. doi:10.1190/1.1443207
[11] 王京印,程远方,严智武,等. 高温高压下气体声学性质的实验研究[J]. 天然气工业, 2006, 26(2):138-140. doi:10.3321/j.issn:1000-0976.2006.02.044 WANG Jingyin, CHENG Yuanfang, YAN Zhiwu, et al. Study on gaseous sonic property under high temperature and high pressure[J]. Natural Gas Industry, 2006, 26(2):138-140. doi:10.3321/j.issn:1000-0976.2006.02.044
[12] 蔡文军. 钻柱中声波传播特性实验研究[J]. 天然气工业,2016,36(6):72-77. doi:10.3787/j.issn.1000-0976.2016.06.011 CAI Wenjun. An experiment study on the propagation characteristics of acoustic waves in drill strings[J]. Natural Gas Industry, 2016, 36(6):72-77. doi:10.3787/j.issn.1000-0976.2016.06.011

A Study on Acoustic Velocity and Resistivity of Rocks in CO₂/Natural Gas Accumulation

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[2]	LI Chun-fu WANG Bin DAI Jia-lin et al. Study of Carbon Dioxide Corrision Mechanism in High Pressureand High Temperature [J]. 西南石油大学学报(自然科学版), 2005, 27(1): 75-78.
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