聚合物驅后微生物提高原油采收率的研究.pdf

1、山東大學碩士學位論文聚合物驅后微生物提高原油采收率的研究姓名：宋茂勇申請學位級別：碩士專業(yè)：微生物學指導教師：曲音波20030508山東大學碩士學位論文ABSTRACTAfterprimaryandsecondaryproceduresthereisstillmuchresidualoilintherockporesMicrobialenhancedoilrecovery(MEOR)isatechniquetoutilizemicroo

2、rganismsandtheirmetabolicproductstoimprovetherecoveryofcrudeoiifromreservoirrocksBacteriaaretheonlymicroorganismsthathavebeenproposedforenhancedoilrecovery(EOR)processTheyaresmallinsize，growexponentiallyandproducemetabol

3、iccompoundssuchasgases，acids，surfactantsandpolymersBacteriaalsotoleratehashenvironmentssuchas：11ighwatersalinityhighpressureandhjghtemperatureInthissnldythefeasibilityofusingmicroorganismstoincreasetheincrementaloilafter

4、polyacrylamides(PAM)floodingandthemechanismofmicroorganismsenhancedoilrecoveryatmicrocosmicscalewereinvestigatedAphysicaldimensionalmodelWasdesignedtosimulatetheprocessofenhancedoilrecoverybymicroorganismsThemicroorganis

5、msusedfortheexperimentswereisolatedfromthecrudeoilcontaminatedwaterandsoilneartheoilwellsofShengliOilFieldandDaqingOilFieldTheywereidentifiedasPseudomonassp(Y33，Y321)andBacillussp(031)Theabilityofmicroorganismstodegradec

6、rudeoilandtogrowonthemediumwithoilasthesolecarbonsourcewasstudiedThetestresdtsindicatedthatallthestrainsgrewonavarietyofsubstratesattemperatureofupto70“CandatthewatermineralizationofuptolOOg／LPseudomonasJIandJ8werealsois

7、olatedfromthesoilaroundtheoilwellsusingpolyacrylamidesinoilrecoveryenhancementBythemeansofmeasuringthelossofviscosityofpolyacrylamidessolution，theeffectsofstrainsJ1andJ8onthePAMdegradationWaSstudiedY321canproduceorganica

8、cidintheoilliquidmedium，whichwasidentifiedasaceticacid，supernatantacid，hexanoicacidandotherkindsoflongchainfattyacidsmeasuredbygaschromatography，ThefermentationsupematantofthestrainG31hashighsurfaceactivityThebiosurfacta