海塔盆地苏德尔特油田低效井治理方法研究

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1、XXXX大学本科生毕业设计（论文）摘要海塔盆地苏德尔特油田自下而上发育两套油层，下部为裂缝性古潜山油层，上部为含凝灰质强水敏特-超低渗透砂砾岩油层。布达特裂缝性潜山油层与国内外其它潜山油层相比，具有裂缝发育程度差、连通状况差的特点，油井投产后成片出现低效井；兴安岭油层由于凝灰质含量高、储层物性差，注水井投注后吸水状况差，部分区块注不进、采不出。单井平均日产量在0.5t以下的低效井占到全油田的40%。因此低效井的治理是油田开发的重要内容。本文通过裂缝性潜山油藏有效储层识别方法研究、含凝灰砂砾岩油藏

2、有效厚度电性标准制定方法研究、低效井成因分类方法研究，初步搞清了布达特油层有效储层识别方法以及贝16区块兴安岭油层Ⅰ、Ⅱ油组有效厚度电性标准制定方法，基本搞清了低效井的成因及其相适宜的治理对策，在现场试验中取得了较好的应用效果。关键词：苏德尔特；古潜山；凝灰质；低效井XXXX大学本科生毕业设计（论文）AbstractTwosetsofbottom-updevelopmentinsideSuderteoilfield，thelowerpartisin-fracturedburiedhilloill

3、ayer，theupperpartisoillayerwithintuffaceousstrongwatersensitive-ultra-lowpermeabilitygravel.CompareBudatein-fracturedburiedhillreservoirwithotherburiedhilloillayerinChinaoroutsideChina,hasthecharacteristicslike:lowerdegreeofin-fractureddevelopment,lo

4、werdegreeofconnectivity,largenumbersofinefficientwellemergedaftertheprocedureofoilproduction;withthehighcontentoftuffaceousandthepoorreservoirpropertiesoftheXingAnLingreservoir,phenomenonssuchaspoorwater-suckingconditionsemergedaftertheinjectionwells

5、wereactivated,andsomeareasareunabletobeinjectedorrecover.Thedailyaverageoutputofasinglewellwhichwas0.5tonbelowinefficientwellsaccountedfor40%offull-field.Socontroltheinefficientwellsisveryimportantforfielddevelopment.Inthisessay,throughtheresearchofr

6、ecognitionfortheeffectivereservoirofin-fracturedburiedhilloillayerandthewayofformulatingstandardfortheelectricaleffectivethicknessofoillayerwithintuffaceousconglomerateandtheclassificationofthecausesoftheinefficientwells,findedoutthewayofrecognitionf

7、ortheeffectivereservoirofBudateoillayerpreliminarily,andthewayofformulatingstandardfortheelectricaleffectivethicknessofoillayerforoilgroupⅠ、ⅡinsectionBei16attheXingAnLingreservoir,figuredoutthecausesoftheinefficientwellsmostlyandthecountermeasuresApp

8、ropriatetoit,achievedgoodapplicationeffectinthefieldtests.Keywords：SuderteOilfield；Buriedhill；Tuffaceous；InefficientwellXXXX大学本科生毕业设计（论文）XXXX大学本科生毕业设计（论文）目录第1章概述11.1研究目的和意义11.2国内外研究现状11.3研究重点21.4研究难点及存在的问题21.5创新点3第2章简要地质特征及开发现状52.1简要地质特征52.2开发现状7第3章低