压实过程中埋深与时间对碎屑岩孔隙度演化的共同影响.pdf

21 1 Vol121 No1 1 2007 3 GEO SC IENCE Mar12007 刘 震, 邵新军, 金 博, 李鹤永, 许晓明, 梁全胜 ( , 102249) : , , ) ( B ingham ) , , , 3 , , , , , : ; ; ; + : T E1221 1 2 : A : 1000- 8527( 2007) 0 1- 0125- 08 Co-effect of Depth and Burial T im e on the E volution of P orosity for Classic Rocks D uring the Stage of Compaction LIU Zhen, SHAO X in-jun, JIN Bo, LIH e-yong, XU X iao-m ing, LIANG Quan-sheng (K ey Laboratoryf orHydrocarbon AccumulationM echanism of E ducationM inistry, Ch ina University of P etroleum, B eij in 102249, Ch ina) Abstract Sam e as the burialdepth, the burial tmi e also has great effect on the evolu tion of porosity of the clas- sic rocks during com paction, wh ich is clarified by three aspects in this paper. The first, the author draw s an in- ference that porosity of stratum is a function of buried depth and buried tmi e. The second, the relationship be- tw een the porosity ofmudstone and the buried depth, and the relationsh ip bewt een the porosity and buried tmi e in three representative sedmi entary basins g ives an indication of the effects of depth and burial tmi e on the evolu- tion of porosity for the classic rocks. The th ird, the results from the smi ulative com paction of sedmi en t in the lab further prove that the tmi e during compaction influences the degree of the com paction greatly. So the porosity of the class