海拉尔盆地坡折带成藏类型与勘探突破方向.pdf

Vo1．27Supplement
第27卷增刊石油学报
2006年12月ACTAPETROLEISINICADec．2006

文章编号：0253—2697(2006)增刊一0007—07

海拉尔盆地坡折带成藏类型与勘探突破方向

董万百吴河勇齐玉林秦龙卜张恒发
(1．中国地质大学能源学院北京100083；2．大庆油田有限责任公司勘探开发研究院黑龙江大庆163712)

摘要：以层序地层学等理论为指导，以LANDMARK工作站的SEISWORK一3D地震解释、GEOPROBE地震岩性圈闭识别和储层
预测等技术为手段，对海拉尔盆地贝尔断陷贝西斜坡主要勘探目的层系进行了层序、体系域的划分及层间扇体的刻画，统一了全区
层序及体系域的界限。应用坡折带理论，根据形态特征将贝西斜坡的坡折带划分为反向断阶型、简单弯折型、多级断折型和多级坡
折型4种类型。坡折类型不同，其油气藏的形成和富集特征也不同：反向断阶型有利于构造油气藏的形成和富集；断折型和坡折型
有利于构造一岩性油气藏的形成；简单弯折型有利于岩性油气藏的发育。通过乌东斜坡带与贝西斜坡带的类比研究，提出了海拉
尔盆地中坡折带为下步勘探的突破方向。
关键词：海拉尔盆地；坡折带；成藏类型；油气勘探；突破方向
中图分类号：TEl11文献标识码：A

Reservoir-formingtypesandexplorationtargets

inslopebreakbeltsofHailaerBasin

DongWanbai’WuHeyongQiYulinQinLongbuZhangHengfa

(1．FacultyofEnergyResources，ChinaUniversityofGeosciences，Beijing100083，China；2．ResearchInstituteof
ExplorationandDevelopment，PetroChinaDaqingOilfieldCompanyLtd．，Daqing163712，China)

Abstract：Undertheguidanceofsequencestratigraphytheory，thesequencesandsystemtractshavebeenclassified，theinterlayer

fanbodieshavebeendepicted，andtheboundariesofthesequencesandsystemtractsofthewholeblockforthemainexplorationtar—

getsequenceshavebeenunifiedinBeixislope，Beierfaulted—depression，HailaerBasin，bymeansofSEISWORK一3Dseismicinterpre—

tationatLandmarkworkstation，usingtheGEOPROBEseismiclithologictrapidentificationandreservoirpredictiontechniques．Ae—

cordingtothetheoryofslopebreakbelt，theslopebreakbelttypesbasedontheirshapesinBeixislopeareclassifiedintoinverted

faultsteptype，singlecurvebreaktype，multiple-stepfaultbreaktype，andmultiple-stepslopebreaktype．Differentslopebreaktypes

mightleadtovariancesofoil-gasreservoirformationandaccumulation．Invertedfaultsteptypeisfavorableforformationandaccumulationof

structuraloil—gasreservoir；Faultbreaktypeandslopebreaktypeareinfavorofformingstructural-lithologicoiPgasreservoirs；Singlecurve

breaktypeisinfavoroflithologicreservoirdevelopment．onthebasisofcorrelationbetweenWudongslopebeltandBeixislopebelt，the

middleslopebreakbeltinHailaerBasinisbroughtforwardasthebreakthroughta