深层钻井取心技术在东三段致密砂砾岩中的应用.pdf

技术与信息

深层钻井取心技术在东三段致密砂砾岩中的应用

112

周志军，杨露，贺国新

(1.中海石油能源发展股份有限公司工程技术公司，天津300452；

2.中海油服油田化学事业部，天津300452)

摘要：深层钻井取心是精细研究低孔渗致密储层的有效手段，而确保取心作业成功是开展储层实物研究的前提。文章通

过分析曹妃甸A油田东三段致密砂砾岩沉积储层特征以及川式高强度取心工具在东三段砂砾岩储层中的应用，提炼了

古近系硬质砂砾岩储层钻井取心的一系列技术措施，包括卡准取心层位，选择合适的取心工具，细化取心作业中每一道

工序的具体实施措施，保证了深层砂砾岩取心的高收获率，为后期同类型致密储层的油藏开发提供参考。

关键词：致密砂砾岩；钻井取心；岩心获取率；石油化工

中图分类号：TE5 文献标志码：A文章编号：1008-4800(2024)26-0066-03

DOI:10.19900/ki.ISSN1008-4800.2024.26.018

ApplicationofDeepDrillingCoringTechnologyintheEastThirdMember

TightSandConglomerate

112

ZHOUZhijun,YANGLu,HeGuoxin

(1.EngineeringTechnologyCompany,CNOOCEnergyDevelopmentCo.,Ltd.,Tianjin300452,China;

2.COSL-oilf iedChemicalsDivision,Tianjin300452,China)

Abstract:Deepdrillingcoringisaneffectivemethodforf inestudyoflowporosityandpermeabilitytightreservoir,andensuring

thesuccessofcoringoperationisthepremiseofphysicalstudyofreservoir.Byanalyzingthecharacteristicsoftightsandstone

sedimentaryreservoirintheeastthirdmemberofCaofeidianAoilf ieldandtheapplicationofSichuanhighstrengthcoringtool

intheeastthirdmemberoftheoilf ield,thispaperref inesaseriesoftechnicalmeasuresfordrillingcoringinthepaleogenehard

sandstoneconglomeratereservoir,includingstickingthecorehorizon,selectingtheappropriatecoringtool,andref iningthe

specif icimplementationmeasuresofeachprocessinthecoringoperation.Itensuresthehighyieldofdeepsandconglomeratecore,

andprovidesareferenceforthedevelopmentofthesametypeoftightreservoirinthelaterperiod.

Keywords:densesandconglomerate;drillingcoring;