摘要
Heterogeneityofpermeabilityinfracturedmediaisahotresearchtopicinhydrogeology.Numerousapproacheshavebeenproposedtocharacterizeheterogeneityinthelastseveraldecades.However,littleattentionhasbeenpaidtocorrelatepermeabilityheterogeneitywithgeologicalinformation.Inthepresentstudy,severalcausesofpermeabilityheterogeneity,thatis,lithology,tectonism,anddepth,areidentified.Theunitabsorptionvalues(denotedasω),whichareresultsobtainedfromthepackertest,areemployedtorepresentpermeability.Thevariabilityofpermeabilityinsandstone-mudstoneissosignificantthatthevalueofunitabsorptionsspan3-4ordersofmagnitudeatanydepthwithseveraltestsections.Bydeclustering,ithasbeenfoundthatunderasimilartectonichistory,themeansofpermeabilitydiffergreatlyatdifferentformationsasaresultofdifferentmudrockcontents.Ithasalsobeenfoundthatinthesameformation,permeabilitycanbesignificantlyincreasedasaresultoffaulting.Thewell-knownphenomenon,thedecreaseinpermeabilitywithdepth,isfoundtobecausedbythefracturesintherockmass,andtherelationshipbetweenpermeabilityanddepthcanbeestablishedintheformoflogω-logd.Aftersubtractingthetrendofωwithabsolutedepth,themeanoftheresidualvalueateachrelativedepthcanbewellcorrelatedwiththedistributionofmudstone.Themethodsproposedinthispapercanbeutilizedtoresearchinsimilarstudyareas.
出版日期
2009年05月15日（中国期刊网平台首次上网日期，不代表论文的发表时间）
