发明名称 MULTI-BOTTOMHOLE DESIGN FOR PRODUCTION IN PERMAFROST
摘要 FIELD: oil-and-gas industry. ^ SUBSTANCE: invention includes main and lateral bottomholes, a production string A production string equipped under permafrost area with a wellhead shut off valve, in a interval over the top lateral bottomhole - production string thermal expansion bend, a flow valve, a pipe with a polished tip In a interval opposite to the side boreholes units installed, over it installed production parkers with landing nipples A snap shut connection installed under mini-windows In a interval between the lateral boreholes and under the bottom lateral bottomhole installed pipes with polished tips At that production string in permafrost area interval can be equipped with thermal insulated pipes, and in interval over the top lateral bottomhole - with inhibitor valve, and production string top section bypass hole diametre fits to low sections summary bypass holes. ^ EFFECT: well operation control, production consumption decrease, well operation production rate increase. ^ 4 cl, 1 dwg
申请公布号 RU2379487(C1) 申请公布日期 2010.01.20
申请号 RU20080124925 申请日期 2008.06.18
申请人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO "GAZPROM" (OAO "GAZPROM") 发明人 KRYLOV GEORGIJ VASIL'EVICH;KUSTYSHEV ALEKSANDR VASIL'EVICH;GAFAROV NAIL' ANATOL'EVICH;SHTOL' VLADIMIR FILIPPOVICH;CHIZHOVA TAMARA IVANOVNA;NEMKOV ALEKSEJ VLADIMIROVICH;ARTEMENKOV VALERIJ JUR'EVICH
分类号 E21B7/04;E21B43/14 主分类号 E21B7/04
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