古龙凹陷向斜区油气聚集规律与勘探方法

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1、2009年10月大庆石油地质与开发Oct．．2009第28卷第5期PetroleumGeologyandOilfieldDevelopmentinDaqingV01．28No．5DOI：10．3969／J．ISSN．1000—3754．2009．05．005古龙凹陷向斜区油气聚集规律与勘探方法林铁锋吴海波张庆石王雅峰梁晓东(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：针对古龙凹陷向斜区葡萄花油层岩性油藏的勘探潜力、勘探中面临的岩性油藏发育部位预测、油气聚集规律和薄储层预测技术等问题，分析了古龙凹陷具有形成大面积岩性油藏的地质条件。在葡萄花油层3个成藏带

2、认识指导下，开展了以高分辨率层序地层研究为基础的大比例尺沉积微相工业制图、油藏精细解剖研究和薄储层预测技术攻关，进一步深化了向斜区岩性油气分布特征及油气成藏规律认识。通过深化勘探开发一体化评价提交了整装亿吨级储量，从而实现了古龙凹陷岩性油藏勘探的重大突破。在实践中探索形成的岩性油藏区带精细勘探及一体化评价思路和方法，对今后的油气勘探一体化评价工作具有重要的指导意义。关’键词：古龙凹陷；向斜区岩性油藏；成藏规律；层序地层；薄储层预测中图分类号：TEl21文献标识码：A文章编号：1000-3754(2009)05—0023-05HYDRoCARBoNACCUMULATIoNRU

3、LEANDEXPLoRATIoNMETHoDINSYNCLINALAREAoFGULoNGSAGLINTie—feng，wUHai—bo，ZHANGQing—shi，WANGYa-feng，LIANGXiao—dong(ExplorationandDevelopmentResearchInstitute，DaqingOilfieldCompanyLtd．，Daqing163712，China)Abstract：AccordingtotheexplorationpotentialoflithologicreservoirsofPutaohuaformationinsyncli

4、nalareaofGulongSag。aswellastheproblemsoccurredduringtheprocessofexplorationsuchaspredictionofpositions(de-velopmentplace)oflithologicreservoirs，hydrocarbonaccumulationruleandthinreservoirprediction，basedontheanalysisofhydrocarbonsourcerockevolutionandsedimentarydistributioncharacteristics，

5、thispaperpointsoutthatGulongSagpossessesthegeologicalconditionsofformingmassivelithologicreservoir．Withtheknowledgeof3hy—drocarbonaccumulationbeltsinPutaohuaformation，onthebasisofhigh—resolutionsequeneestratigraphy，keytechnicalresearches，includinglarge—scalesedimentarymicrofaciesindustrial

6、drawing，reservoirprecisephantomandthinreservoirprediction，havebeencariedout，furtherdeepeningthecognitionofdistributioncharacteristicsandaccumulationrulesoflithologicalhydrocarbonreservoirinsynclinalarea．Throughintegratedevaluationofex—plorationanddevelopment，overhundredsmillionsoftonsofoil

7、hasbeensubmitted，realizingagreatbreakthroughintheexplorationoflithologicalreservoirsinGulongSag．Thepracticalthoughtsandapproachesonpreciseexplora—tionandintegratedevaluationonlithologicalreservoirsareofgreatsignificancestofutureworks．Keywords：GulongSag；litholo