Comprehensive evaluation method for sealing ability of mudstone caprock to gas in each phase

SHI Xuefeng; DU Haifeng

doi:10.3969/j.issn.1673-8926.2008.01.004

Lithologic Reservoirs >

2008 , Vol. 20 >Issue 1: 21 - 26

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.01.004

Comprehensive evaluation method for sealing ability of mudstone caprock to gas in each phase

SHI Xuefeng ,
DU Haifeng

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Daqing Petroleum Institute, Daqing 163318, China

Online published: 2008-03-15

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Abstract

Based on the study on sealing mechanisms of mudstone caprock to gas in each phase, the percolation and diffusion velocity of gas in free phase, water-dissolving phase and diffusive phase through mudstone caprock under the action of imposed pressure and gas-bearing concentration are applied to establish the evaluation parameters (Vs, Vw and Vd) for sealing ability of mudstone caprock to gas in free phase, in water-dissolving phase and in diffusive phase respectively. And then, a comprehensive evaluation method for sealing ability of mudstone caprock to gas in each phase is established by weighted average value. This method is applied to evaluate the sealing ability of mudstone caprock to gas in each phase of Qingshankou Formation in Binbei area. The result shows that the mudstone caprock of Qingshankou Formation is of middle sealing ability, and poor sealing ability in Nehe and eastern Suileng. Poor sealing ability is one of the main factors which caused the poor gas shows in this area.

Key words： sedimentary facies; depositional model; depositional system; Jiyuan area

Cite this article

SHI Xuefeng , DU Haifeng . Comprehensive evaluation method for sealing ability of mudstone caprock to gas in each phase[J]. Lithologic Reservoirs, 2008 , 20(1) : 21 -26 . DOI: 10.3969/j.issn.1673-8926.2008.01.004

References

[ 1] 郝石生, 黄志龙, 杨家琦.天然气运聚动平衡及其应用[M] .北京: 石油工业出版社, 1994: 30- 33.
[ 2] 王文广, 付广.泥质岩盖层对水溶性天然气的封闭作用及其研究方法[ J] .中国石油勘探, 1997, 2( 4) : 47- 50.
[ 3] 付广, 孟庆芬.盖层对水溶相天然气的封闭机理及其研究方法[ J] .断块油气田, 2004, 11( 3) : 23- 26.
[ 4] 付广, 吕延防, 杨勉, 等.超压泥岩盖层封闭油气机理的新认识[M] ∥宋岩, 魏国齐, 洪峰, 等著.天然气地质研究与应用.北京: 石油工业出版社, 2000: 219- 223.
[ 5] 付广, 吕延防.天然气扩散作用及其研究方法[M] . 北京: 石油工业出版社, 1999: 79- 88.
[ 6] 付广, 陈章明, 万龙贵. 烃浓度盖层封闭天然气的有效性及其研究意义[ J] . 沉积学报, 1997, 15( 1) : 147- 151.
[ 7] 付广, 陈章明, 王朋岩.松辽盆地三肇凹陷青山口组泥岩盖层封闭能力形成时期[ J] .地质论评, 1998, 44( 3) : 295- 301.
[ 8] 付广, 姜振学, 庞雄奇. 盖层烃浓度封闭能力评价方法探讨[ J] .石油学报, 1997, 18( 1) : 39- 43.
[ 9] 付广, 吕延防, 付晓飞.泥岩盖层浓度封闭演化特征———以松辽盆地下白垩统泥岩为例[ J] .地质科学, 2003, 38( 2) : 165-171.
[ 10] 付晓泰, 王振平, 卢双舫.气体在水中的溶解机理及溶解方程[ J] .中国科学(B 辑) , 1996, 26( 2) : 124- 130.
[ 11] 郝石生, 陈章明, 高辉斌, 等.天然气藏形成与保存[M] . 北京:石油工业出版社, 1995.
[ 12] 郝石生, 黄志龙.天然气盖层研究与评价[ J] .沉积学报, 1991,9( 4) : 20- 26.
[ 13] 卢双舫, 付广, 王朋岩, 等.天然气富集主控因素的定量研究[M] . 北京: 石油工业出版社, 2002.
[ 14] 吕延防, 付广, 高大岭, 等.油气藏封盖研究[M] .北京: 石油工业出版社, 1996.
[ 15] 吕延防, 张绍臣, 王亚明.盖层封闭能力与盖层厚度的定量关系[ J] . 石油学报, 2000, 21( 2) : 27- 30.
[ 16] 庞雄奇, 付广, 万龙贵, 等.盖层封油气性综合定量评价[M] .北京: 地质出版社, 1994.
[ 17] 葛家理.油气层渗流力学[M] .北京: 石油工业出版社, 1982.[ 18] 包茨.天然气地质学[M] . 北京: 科学出版社, 1988: 247.
[ 19] 付晓泰, 王振平, 卢双舫.气体在水中的溶解机理及其溶解度方程[ J] .中国科学(B 辑) ,1996, 26( 2) : 124- 130.
[ 20] 付广, 张云峰, 陈章明.有效水溶释放气量及其研究意义[ J] .沉积学报, 2001,18( 1) : 157- 161.
[ 21] 付广, 姜振学, 陈章明. 松辽盆地三肇凹陷侏罗系天然气扩散损失量估算及其研究意义[ J] . 石油勘探与开发,1996, 23( 1) :25- 30.
[ 22] 王行信.泥岩的脱水特征与油气的初次运移[C] ∥张厚福.油气运移研究论文集.东营: 石油大学出版社, 1993: 79- 87.

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