5 12 E Fig.1 Locationmapofthestudyarea 12.10~38.8 m 33.8 m 4 A 1 A 2 A 3 A 4 2 E ; (GR) 2.2 [29] X ( v) (DEN) ; (SP) 2.3 [31] [25-26]

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1 GeologicalScienceandTechnologyInformation Vol.37 No.5 Sep doi /j.cnki.dzkq E (5) E ( ; ) 12 E Ⅰ 0.2;Ⅱ 0.2~0.4 ;Ⅲ >0.4 ; ; ; ; P A (2018) ( ) [1-2] 3 [3-5] ; 1 [6] ; ( 1) [7-8] ; 100km NWW SWW; [9-10] [11] [12] [13-14] [15-16] (E l+2 ) (E 1 3) [17-18] [19] [20] [21-22] 50m [23-24] 10 E ~ m( m) (1991 ) @qq.com

2 5 12 E Fig.1 Locationmapofthestudyarea 12.10~38.8 m 33.8 m 4 A 1 A 2 A 3 A 4 2 E ; (GR) 2.2 [29] X ( v) (DEN) ; (SP) 2.3 [31] [25-26] F [27-28] 2 φ ;

3 φ Vf V φ = Vf V (1) φ = m fr R m ( 1-1 ) (2) 槡 R LLS R LLD φ (%);m fr 1.5;R m (Ω m);r LLS (Ω m);r LLD (Ω m) Y = n 1 n a ix i (5) i=1 Y ;a i [31-32] ;x i ;n 5 Y = [GR a 1 +v a 2 +SP a 3 +DEN a 4 + (1-φ ) a5 ]/5 (6) GR (API);v (AC) (m/s);sp (mv);den (1) (g/cm 3 ); φ (%) > ; a 1 a 2 a 3 a 4 a 5 Sibbit [33] (6) 4 (2) (6) > > (R LLD<R LLS ) (2) φ = m fr R m ( 1-1 n ) (3) 槡 R LLD R LLS (Y i -M) 2 / n (3) K 槡 i=1 = (7) M K ;Y i i=123 n;m (2) ;n φ = m fr R m ( 1 - 槡 1 (7) ) 0 (4) R LLS R LLD (2) %; 0.2~ %~0.1% ; > % 3 (1)Ⅰ K 0.2;Ⅱ <K 0.4;Ⅲ K> Y

Classificationofreservoirheterogeneity K Ⅰ Ⅱ K 0.2 0.2<K 0.

4 5 12 E Fig.2 Frequencydistributionhistogramofvariablecoeficient ofpetrophysicalfaciesbypoint 1 Table1 Classificationofreservoirheterogeneity K Ⅰ Ⅱ K <K A1 A3 SP GR DEN AC A2 SP GR DEN AC A4 SP GR DEN AC Ⅲ K> ( ) m 3 ; A 2 3A m 3 1 ; S K 0.2 ; 6.64m 3 0.2<K 0.4 ; K> (1) (4) ; ; ; ; 3 3 Fig.3 A 2 Mapofcoeficientofvariationcontour

5 Fig.4 Relationbetweencoeficientofpetrophysicalfaciesandpermeabilityofdiferenttypesofheterogeneity (2) 5 AAPGBuletin200589(5) (3) [9] (3) ; 0.2~0.4 ; 0.2 (4)A 2 [12] 3 3 [1]. 104 JournalofPetroleum ScienceandEngineering (5) [2] [15] (6) [3]. [16]. GIS (2) [4] (2) [18] (3) [5] DanielaEBClaiton M SS.Faciesarchitectureandheterogene- ityofthefluvial-aeolianreservoirsofthesergiformation(up- perjurassic)reconcavobasinnebrazilmarineandpe- troleum Geology [6] (5) (3) [7] (5) (5) [8] MathewJPColeteB HDavidA B.Scalesoflateralpero- physicalheterogeneityin dolomitelithofaciesasdetermined fromoutcropanalogsimplicationsfor3-dreservoirmodeling. gesmathematicalgeology200638(2) [11] (1) (2) [13] [10]PeterG TDavidAAsbjornG.Quantitativeanalysisofporos- ityheterogeneityapplicationofgeostatisticstonoreholeima (2)269- [14]ShehadehK M.Studyingtheefectofwetabilityheterogeneity onthecapilarypressurecurvesusingthecentrifugetechnique V (6) (1) [17].HQ (3) [19] (1) [20]. [21]. [22].

6 5 12 E (4) [23]. [29] 12 E (8) 20126(1) [24] (6) [31] (5) [25]. [M] [26] (5) (4) (1) [27]. 12E 1 3 [33]SibbitA MFaivreO.Theduallaterologresponseinfractured (4) rocks[c] Anon.SPWLA26thAnnualLoggingSymposium [28]. 12E 1 3 DalasTexasJune [30] (6) [32] ReservoirHeterogeneityBasedonPetrophysicalFacies ACaseStudyonE 1 3inQie12BlockofKunbeiOilfield FuLiping 1 MouZhonghai 1 ZhangGuocheng 2 LiXiaoru 2 (1.SouthwestPetroleum UniversityChengdu610500China; 2.ResearchInstituteofQinghaiOilfieldCompanyCNPCDunhuangGansu736202China) AbstractTheE 1 3inQie12blockofKunbeiOilfieldisamainlyabraidedriverdeltafaciesdepositwhichis nearsourceintheunconformitysurface.itslithologyismainlypebblysandstoneandconglomeratedueto theinfluenceofsedimentaryenvironmentdiagenesisstructureandotherfactorslithologyiscomplexlow- maturitypoorsortingmultipleporestructureefectivereservoirandnon-efectivereservoirare mixed strongheterogeneityofreservoirthispaperstudiesthefinerpetrophysicalfaciestosolvereservoirhetero- geneitybasedonlithologicdataloggingdataanditsinterpretationresults.fiveparametersofnatural gammanaturalpotentialintervaltransittimedensityandfractureporosityareselectedtoreflectsedimen- tarydiagenetictectonicactionandtheweightedaveragemethodisusedtocalculatethecomprehensivee- valuationcoeficientofpetrophysicalfaciesreflected.onthisbasisthecomprehensiveevaluationcoefi- cientofpointbypointpetrophysicalfaciesisadoptedandthereservoirheterogeneityiscalculatedbythe variationcoeficientmethod.accordingtothemagnitudeofthecoeficientofvariationtheheterogeneityof theworkareacanbedividedintothreecategoriesthecoeficientofvariationofthefirsttypeofweakhet- erogeneitylessthanorequalto0.2;thecoeficientofvariationforsecondtypesofmedium heterogeneity between0.2and0.4;andthecoeficientofvariationofthethirdtypesofstrongheterogeneitygreaterthan 0.4.Accordingtothisstandardtheplaneheterogeneityofreservoirispredicted. KeywordsKunbeiOilfield;reservoirheterogeneity;petrophysicalfacies;coeficientofvariation;weighted averagemethod

GeologicalScienceandTechnologyInformation Vol.37 No.5 Sep doi: /j.cnki.dzkq ,,. [J].,2018,37(5):49-53.,,, ( ), 30045

37 5 2018 9 GeologicalScienceandTechnologyInformation Vol.37 No.5 Sep. 2018 doi:10.19509/j.cnki.dzkq.2018.0506. [J].,2018,37(5):49-53. ( ) 300459) : PL 10 30% : ; ; ; :P618.13 :A :1000-7849(2018)05-0049-05