Experimental Study on Permeability Stress Sensitivity of Carbonate Rocks

LI Da-qi，KANG Yi-li，YOU Li-jun

doi:10.11764/j.issn.1672-1926.2014.03.409

Natural Gas Geoscience >

2014 , Vol. 25 >Issue 3: 409 - 413

DOI: https://doi.org/10.11764/j.issn.1672-1926.2014.03.409

Experimental Study on Permeability Stress Sensitivity of Carbonate Rocks

Expand

1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China;
2.SINOPEC Research Institute of Petroleum Engineering,Beijing 100101,China

Received date: 2013-04-27

Revised date: 2013-07-05

Online published: 2014-03-10

Fold

Abstract

Permeability stress sensitivity of formation is of great research value in oil & gas exploration and development.Experiment samples with Φ2.5cm×5cm,which were classified as matrix,natural fracture and artificial fracture,were selected from four types of typical carbonate rocks.The researches on permeability stress sensitivity and rock mechanics were carried out,and the effect of permeability stress sensitivity influenced by physical and mechanical characters of rock was analyzed.Results show that permeability stress sensitivity can be evaluated by stress sensitivity coefficient for the purpose of conducting a contrastive study in different oil blocks,formations and lithology.The stress sensitivity coefficients of carbonatite matrix samples,natural fracture samples and artificial fracture samples were 0.22,0.49 and 0.63,respectively.It shows a trend of steady increase.The correlation between the stress sensitivity of carbonatite and the permeability is poor.It′s hard to precisely reflect the stress sensitivity of natural fracture because the randomness of stress sensitivity of the artificial fracture sample is bigger.Stress sensitivity is closely related to the mechanical properties of rock.The higher value of rock elastic modulus,the weaker the stress sensitivity.It is expected to strengthen the researches on micromechanism and simulation of stress sensitivity.

Key words： Carbonate rocks; Stress sensitivity; Permeability; Fluid-structure interaction; Fracture

Cite this article

LI Da-qi，KANG Yi-li，YOU Li-jun . Experimental Study on Permeability Stress Sensitivity of Carbonate Rocks[J]. Natural Gas Geoscience, 2014 , 25(3) : 409 -413 . DOI: 10.11764/j.issn.1672-1926.2014.03.409

References

［1］Jiang Haijun,Yan Jienian,Li Rong.Experimental study on fractured reservoir stress-sensitivity［J］.Petroleum Drilling Technology,2000,28(6):32-33.［蒋海军,鄢捷年,李荣.裂缝性储层应力敏感性实验研究［J］.石油钻探技术,2000,28(6):32-33.］[HJ1.6mm]

［2］Shi Yujiang,Sun Xiaoping.Analysis on reservoir stress-sensitivity of Changqing tight clasolite［J］.Petroleum Exploration and Development,2001,28(5):85-87.［石玉江,孙小平.长庆致密碎屑岩储集层应力敏感性分析［J］.石油勘探与开发,2001,28(5):85-87.］

［3］Fan Xueping,Xu Xiangrong.Experiment of permeability damage induced by effective stress and mechanism analysis［J］.Petroleum Exploration and Development,2002,29(2):117-119.［范学平,徐向荣.地应力对岩心渗透率伤害实验及机理分析［J］.石油勘探与开发,2002,29(2):117-119.］

［4］Zhang Hao,Kang Yili,Chen Yijian,et al.Influence of rock constituents and fracture on stress-sensitivity of tight sandstone［J］.Natural Gas Industry,2004,24(7):55-57.［张浩,康毅力,陈一健,等.岩石组分和裂缝对致密砂岩应力敏感性影响［J］.天然气工业,2004,24(7):55-57.］

［5］Kang Yili,Zhang Hao,Chen Yijian,et al.Comprehensive study on stress-sensitivity of tight sandstone reservoir in Daniu Gasfield of Ordos Basin［J］.Natural Gas Geoscience,2006,17(3):335-338,344.［康毅力,张浩,陈一健,等.鄂尔多斯盆地大牛地气田致密砂岩气层应力敏感性综合研究［J］.天然气地球科学,2006,17(3):335-338,344.］

［6］You Lijun,Kang Yili,Chen Yijian,et al.Stress-sensitivity of tight sandstone considering fracture and water saturation［J］.Journal of China University of Petroleum:Natural Science Edition,2006,30(2):59-63.［游利军,康毅力,陈一健,等.考虑裂缝和含水饱和度的致密砂岩应力敏感性［J］.中国石油大学学报:自然科学版,2006,30(2):59-63.］

［7］Yan Fengming,Kang Yili,Li Song,et al.Simulated experiment on stress sensitivity in fractured-vuggy reservoir［J］.Natural Gas Geoscience,2010,21(3):489-493.［闫丰明,康毅力,李松,等.裂缝—孔洞型碳酸盐岩储层应力敏感性实验研究［J］.天然气地球科学,2010,21(3):489-493.］

［8］Luo Ruilan,Lei Qun,Fan Jiwu,et al.The influence of stress sensitivity on production of hydraulically-fractured tight gas wells［J］.Journal of Chongqing University:Natural Science Edition,2011,34(4):95-99,106.［罗瑞兰,雷群,范继武,等.应力敏感对致密压裂气井生产的影响［J］.重庆大学学报:自然科学版,2011,34(4):95-99,106.］

［9］Li Daqi,Kang Yili,Zhang Hao.New evaluation method of permeability stress sensitivity based on visual fracture aperture measurement［J］.Natural Gas Geoscience,2011,22(3):494-500.［李大奇,康毅力,张浩.基于可视缝宽测量的储层应力敏感性评价新方法［J］.天然气地球科学,2011,22(3):494-500.］

［10］Lan Lin,Kang Yili,Chen Yijian,et al.Investigation on experimental method and assessment criterion for reservoir stress-sensitivity［J］.Drilling and Completion Fluids,2005,22(3):1-4,79.［兰林,康毅力,陈一健,等.储层应力敏感性评价实验方法与评价指标探讨［J］.钻井液与完井液,2005,22(3):1-4,79.］

［11］Ali H S,Al-Marhoun M A,Abu-Khamsin S A,et al.The Effect of Overburden Pressure on Relative Permeability［R］.SPE 15730,1987.

［12］Kranz R L,Frankel A D,Engelder T,et al.The permeability of whole and jointed Barre granite［J］.International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts,1979,16(2):225-234.

［13］Gale J E.The effects of fracture type (induced versus natural) on the stress-fracture closure-fracture permeability relationships[JP3]［C］//Proc.23rd Symp.on Rock Mech.California:Berkeley,1982.

［14］Jones F O.A Laboratory Study of the Effects of Confining Pressure on Fracture Flow and Storage Capacity in Carbonate Rocks［R］.SPE 4569,1975.

［15］Xue Yongchao,Cheng Linsong.Experiment study on permeability variation with confining pressure in micro-fracture and low permeability rock［J］.Petroleum Geology and Experiment,2007,29(1):108-110.［薛永超,程林松.微裂缝低渗透岩石渗透率随围压变化实验研究［J］.石油实验地质,2007,29(1):108-110.］

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References