Numerical Analysis on the Effect of Fractures on Elastic Properties of Tight Clastic Reservoirs

YIN Shuai; DING Wenlong; LI Ang; ZHAO Jinli; SHAN Yuming

doi:10.11911/syztjs.201602019

Volume 44 Issue 2

Mar. 2016

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Petroleum Drilling Techniques > 2016 > 44(2): 112-118. > DOI: 10.11911/syztjs.201602019

YIN Shuai, DING Wenlong, LI Ang, ZHAO Jinli, SHAN Yuming. Numerical Analysis on the Effect of Fractures on Elastic Properties of Tight Clastic Reservoirs[J]. Petroleum Drilling Techniques, 2016, 44(2): 112-118. DOI: 10.11911/syztjs.201602019

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Numerical Analysis on the Effect of Fractures on Elastic Properties of Tight Clastic Reservoirs

1.
School of Energy Resources, China University of Geosciences(Beijing), Beijing, 100083, China;
2.
Shanxi CBM Methane Exploration and Development Branch of PetroChina Huabei Oilfield Company, Jincheng, Shanxi, 048026, China;
3.
State Key Laboratory

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Received Date: August 29, 2015
Revised Date: February 26, 2016

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Abstract

The effective prediction of fracture development areas is the key to pinpointing sweet spots in tight gas reservoirs, but currently, the fractures in tight clastic reservoirs of transitional facies are poorly predicted. In this paper, the pore aspect ratio and dry rock bulk modulus were calculated by using the DEM theory model. Later, the effect of fractures on elastic properties of tight clastic formations was analyzed and a correlation between fractures of different scales was proposed. Results indicated that crack development sections could be well identified by virtue of the pore aspect ratio α which was determined by the DEM theory model. By decreasing the pore aspect ratio from 1.0 to 0.01, both the rock bulk modulus and the shear modulus decreased gradually. Results showed that the decline of rock elastic properties was more influenced by cracks than by pores. During the conversion of dry rocks into fluid saturated rocks, the increase amplitude of rock bulk modulus was 3.1% in the strata with undeveloped fractures. In the strata with developed fractures, however, the increasing amplitude of rock bulk modulus was 7.0% when the rock porosity was lower than 4.7%, and otherwise it was 23.0%. The rock porosity at the inflection point could act as an indicator to measure the development degree of fractures in rocks. A positive correlation between dry rock bulk modulus and shear modulus in the strata with undeveloped fractures was detected, but there was a negative correlation in the strata with developed fractures. It was shown that development characteristics of fractures in clastic formations could be characterized quantitatively by using elastic properties of rocks.
- DEM theory,
- fracture,
- tight clastic rock,
- elastic properties,
- bulk modulus,
- porosity

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[1]	FARRELL N J C,HEALY D,TAYLOR C W.Anisotropy of permeability in faulted porous sandstones[J].Journal of Structural Geology,2014,63:50-67.
[2]	DANA E,SKOCZYLAS F.Gas relative permeability and pore structure of sandstones[J].International Journal of Rock Mechanics and Mining Sciences,1999,36(5):613-625.
[3]	NELSON P H.Pore-throat sizes in sandstones,tight sandstones,and shales[J].AAPG Bulletin,2009,93(3):329-340.
[4]	张映红,路保平,陈作,等.中国陆相致密油开采技术发展策略思考[J].石油钻探技术,2015,43(1):1-6. ZHANG Yinghong,LU Baoping,CHEN Zuo,et al.Technical strategy thinking fordeveloping continental tight oil in China[J].Petroleum Drilling Techniques,2015,43(1):1-6.
[5]	LASH G G,ENGELDER T.An analysis of horizontal microcracking during catagenesis:example from the catskill delta complex[J].AAPG Bulletin,2005,89(11):1433-1449.
[6]	张晋言,刘海河,刘伟,等.基于双"泥质指示因子"的砂泥岩薄互层饱和度模型[J].石油钻探技术,2015,43(2):59-62. ZHANG Jinyan,LIU Haihe,LIU Wei,et al.Thin sand and mudstone interbed saturation model based on a dual mudstone indicator[J].Petroleum Drilling Techniques,2015,43(2):59-62.
[7]	ANDERS M H,LAUBACH S E,SCHOLZ C H.Microfractures:a review[J].Journal of Structural Geology,2014,69(B):377-394.
[8]	尹帅,单钰铭,周文,等.Hoek-Brown准则在致密砂岩弹性参数测井解释中的应用[J].石油钻探技术,2015,43(1):88-95. YIN Shuai,SHAN Yuming,ZHOU Wen,et al.Application of Hoek-Brown criterion for tight sandstone elastic parameters in log interpretation[J].Petroleum Drilling Techniques,2015,43(1):88-95.
[9]	GALE J F W,LAUBACH S E,OLSON J E,et al.Natural fractures in shale:a review and new observations[J].AAPG Bulletin,2014,98(11):2165-2216.
[10]	ZHANG Jiaxiang,WONG Tengfong,DAVIS D M.Micromechanics of pressure-induced grain crushing in porous rocks[J].Journal of Geophysical Research,1990,95(B1):341-352.
[11]	LAMA R D,VUTUKURI V S.Handbook on mechanical properties of rocks:vol.Ⅱ[M].Clausthal:Transport Technology Publications,1978.
[12]	MENNDEZ Beatriz,ZHU Wenlu,WONG Tengfong.Micromechanics of brittle faulting and cataclastic flow in Berea sandstone[J].Journal of Structural Geology,1996,18(1):1-16.
[13]	BERRYMAN J G,PRIDE S R,WANG H F.A differential scheme for elastic properties of rocks with dry or saturated cracks[J].Geophysical Journal International,2002,151(2):597-611.
[14]	BERRYMAN J G.Single-scattering approximations for coefficients in Biot’s equations of poroelasticity[J].Journal Acoust Society American,1992,91(2):551-570.
[15]	ESHELBY J D.The determination of the elastic field of an ellipsoidal inclusion,and related problems[J].Proceedings of the Royal Society A,Mathematical,Physical and Engineering Sciences,1957,241:376-394.
[16]	LI Hongbing,ZHANG Jiajia.Analytical approximations of bulk and shear moduli for dry rock based on the differential effective medium theory[J].Geophysical Prospecting,2012,60(2):281-292.
[17]	KEYSR G,XU Shiyu.An approximation for the Xu-White velocity model[J].Geophysics,1999,67(5):1406-1414.
[18]	BUDIANSK Y B.On the elastic moduli of some heterogeneous materials[J].Journal of the Mechanics and Physics of Solids,1965,13(4):223-227.
[19]	BREEYMAN J G,Berge P A.Critique of two explicit schemes for estimating elastic properties of multiphase composites[J].Mechanics of Materials,1996,22(2):149-164.
[20]	SU Xianbo,LIN Xiaoying,ZHAO Mengjun,et al.The upper Paleozoic coalbed methane system in the Qinshui Basin, China[J].AAPG Bulletin,2005,89(1):81-100.
[21]	尹帅,丁文龙,孙雅雄,等.泥页岩单轴抗压破裂特征及UCS影响因素[J].地学前缘,2016,23(2):75-95. YIN Shuai,DING Wenlong,SUN Yaxiong,et al.Shale uniaxial compressive failure property and the affecting factors of UCS[J].Earth Science Frontiers,2016,23(2):75-95.
[22]	LI Hongbing,ZHANG Jiajia.Elastic moduli of dry rocks containing spheroidal pores based on differential effective medium theory[J].Journal of Applied Geophysics,2011,75(4):671-678.
[23]	MAVKO G,MUJERKI T,DVORKIN J.Rock physicshandbook:tools for seismic analysis in porous media[M].Cambridge:Cambridge University Press,2003.
[24]	YASAR E.Failure and failure theories for anisotropic rocks//Proceedings of the 17th International Mining Congress and Exhibition of Turkey-IMCET 2001[M].Ankara:Chamber of Mining Engineers of Turkey,2001:417-424.
[25]	丁文龙,尹帅,王兴华,等.致密砂岩气储层裂缝评价方法与表征[J].地学前缘,2015,22(4):173-187. DING Wenlong,YIN Shuai,WANG Xinghua,et al.Assessment method and characterization of tight sandstone gas reservoir fractures[J].Earth Science Frontiers,2015,22(4):173-187.
[26]	BIENIAWSKI Z T.Mechanism of brittle fracture of rock:partⅡ:experimental studies[J].International Journal of Rock Mechanics and Mining Sciences Geomechanics Abstracts,1967,4(4):407-423.
[27]	李伟,要惠芳,刘鸿福,等.基于显微CT的不同煤体结构煤三维孔隙精细表征[J].煤炭学报,2014,39(6):1127-1131. LI Wei,YAO Huifang,LIU Hongfu,et al.Advanced characterization of three-dimensional pores in coals with different coal-body structure by micro-CT[J].Journal of China Coal Society,2014,39(6):1127-1131.
[28]	LAJTAI E Z.Microscopic fracture processes in a granite[J].Rock Mechanics and Rock Engineering,1998,31(4):237-250.
[29]	KONCAGUL E C,SANTI P M.Predicting the unconfined compressive strength of the Breathitt shale using slake durability,shore hardness and rock structural properties[J].International Journal of Rock Mechanics and Mining Science, 1999,36(2):139-153.
[30]	STEIGER R P,LEUNG P K.Quantitative determination of the mechanical properties of shale[R].SPE 18024,1992.
[31]	尹帅,丁文龙,赵威,等.基于阵列声波测井的海陆过渡相碎屑岩地层裂缝识别方法[J].石油钻探技术,2015,43(5):75-82. YIN Shuai,DING Wenlong,ZHAO Wei,et al.Fracture identification method for marine-continental transitional clastic rocks based on the array acoustic logging[J].Petroleum Drilling Techniques,2015,43(5):75-82.
[32]	BATZLE M,WANG Zhijing.Seismic properties of pore fluids[J].Geophysics,1992,57(11):1396-1408.
[33]	尹帅,丁文龙,黄昌杰,等.非饱和致密砂岩储层含气饱和度测井评价[J].天然气地球科学,2016,27(1):1-10. YIN Shuai, DING Wenlong, HUANG Changjie, et al.Gas saturation logging evaluation of partially saturated tight sandstone reservoir[J].Natural Gas Geoscience,2016,27(1):1-10.
[34]	LI Hongbing,ZHANG Jiajia.Modulus ratio of dry rock based on differential effective medium theory[J].Geophysics,2010, 75(2):N43-N50.

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