徑向水平井生產(chǎn)管電化學射孔及切割技術研究.pdf

1、南京航空航天大學博士學位論文徑向水平井生產(chǎn)管電化學射孔及切割技術研究姓名：王亦紅申請學位級別：博士專業(yè)：機械制造及其自動化指導教師：徐家文2000.3.1徑向水平井生產(chǎn)管電化學射孔及切割技術研究ABSTRACTThehorizontalwellsarefamousforallowingsignificantadditionstOoilandgasreservesHorizontaldrillingrequiresavarietyofad

2、vancedtechnologiesforsuccessfulimplementationinwhich，itisatechnicalkeytOperforateandcutofftheproductiontubewhichhasbeenintheradialboreholeviaelectrochemical(EC)processesForthepurposetosuccessfullyintroducethetechnologyin

3、totheoilandgasfieldinChina，focusingonthegoaltoelectrochemicallyperforateandcuttheradialproductiontubedownhole，thedissertationhascompletedsomeresearchworkasfollows：Inaccordancewiththeelectrochemicalperforationandcuttingwi

4、thfixedcghode，anewideabasedonelectromagnetictheoryisadvancedOnthebasisoftheidea，theshapinglawsoftheECperforationandcuttingwithfixedcathodeareanalyzedrespectivelyInaccordancewiththepropertiesofthehorizontalwellsystem，thes

5、tructuraldesignsfortheECperforationandcuttingtoolsarepromotedrespectivelyOnthebasisofthestudiedshapinglaws，theeffects，whichthesizesofthecathodesurfacesintheECperforationandcuttinghaveonthemachiningrateandelectrolyzingcur

6、rent，areanalyzedindetailInaccordancewiththeshapinglawsoftheECperforationandcuttingwithfixedcathode，thecorrespondingtestsarecarriedouttoverifythemandtheresultsarecorrectTheECperforationandcuttingtoolsaredevelopedtimeafter

7、timeThesimulanttestsarecarriedOUtinthelaboratoryandtheresultsareencouragingInaccordancewiththedownholeECperforationandcutting，thedesignsforthesystemsofsupplyingpowerandelectrolytearepromotedrespectivelyThecontrolmethodso

8、fsupplyingpowertoelectrodesandelectrolytetOthemachininggaparepresentedrespectivelyThemethodofcontrollingthepositionoftheECperforationorcuringtoolintheproductiontubeisgivenKeywordselectrochemicalmachiningcuttingsperforati