注聚调驱井聚合物堵塞物的矿物复合结构形貌及组成特征-论文.pdf

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1、第l9卷第2期地学前缘(中国地质大学(北京)；北京大学)Vo1．19NO．22012年3月EarthScienceFrontiers(ChinaUniversityofGeosciences(Beijing)；PekingUniversity)Mar．2Ol2注聚调驱井聚合物堵塞物的矿物复合结构形貌及组成特征周风山，崔付义。，方颖。，李继勇，田玉芹，苏犁1．中国地质大学(北京)材料科学与工程学院，北京1000832．中国石化胜利油田公司采油工艺研究院，山东东营2570683．中国石油大港油田滩海开发公司，天津300280ZhouFengshan，CuiFuyi，FangYin

2、g。，LiJiyong。，TianYuqin。，SuLi1．SchoolofMaterialsScienceandTechnology，ChinaUniversityofOeosciences(Beijing)，Beijing10O083，China2．ProductionTechnologyResearchInstitute，SinopecShengli04zfieldCompanyLtd，Dongying257068，China3．TanhaiOilfieldDevelopmentCompanyLtd，DagangfieldCompanyLtd，PetroChina，Ti

3、ain300280，ChinaZhouFengshan，CuiFuyi，FangYing，eta1．Mineralmorphologyandcompositioncharacteristicsofthepluggingmaterialsinpolymerflooding．EarthScienceFrontiers，2012，19(2)：151_156Abstract：BythecomprehensiveanalysisofthecasesofpolymerfloodingandprofilecontrolintheBlockB19inShengliOilfield，itiss

4、uggestedthatthemainfactorcausingplugginginBI9wastheinjectingwaterthatdidnotmeetthestandardsofwaterflooding，whichcausedtheexcessivecross—linksoftheinjectingpolymerandtheformationofstronggelatinousmateria1．Thechemicalanalysis，theenergyspectroscopyandtheIRspec—troscopywereusedtoinvestigatethem

5、ineralmorphologyandmaincompositionsofgelscales．Itwasshownthatthegelscalesarecomposedofcross—linkedpolyacrylamide(PAM)，inwhichamassofwaterhavebeenabsorbed．Thechloridemineralcrystalsastheinorganicscalematerialweregraduallyenrichedandformedtheinorganicscalestructuresinvivoenvironmentofcross—li

6、nkedpolymericinclusions．Moreover，someclaymin—eralsfromtheformationwerewrappedintothepolymericinclusions，eventuallyleadingtotheformationofthestronggelatinousmaterialswiththecomplexpolymer-mineralstructuralcharacteristics，whichseriouslyaffectedandevenobstructedtheflowpathofthepolymersolutioni

7、npolymerprofilecontrolandpolymerflooding．Keywords：pluggingmaterial；mineralmorphology；composition；polymerflooding；ShengliOilfield摘要：胜利油田渤19区块注交联聚合物开采多年后，因注入水的水质不达标导致聚合物过度交联形成强凝胶，造成聚合物注入区块许多油水井的堵塞。对现场聚合物垢样品所做的化学组分、表面元素能谱及红外光谱的研究表明，垢的主体结构由交联的聚丙烯酰胺组成，交联体吸收了大