发明名称 DUAL-CHANNEL FLOW HEAD EQUIPMENT
摘要 FIELD: oil production industry, well heads and setting-up thereof. ^ SUBSTANCE: flow head equipment comprises the first row pipe holder provided with two channels and the second row pipe holder having upper and lower threads. One of upper and low channels has upper and lower threads. The first row pipe holder is made as disc with orifices to be fastened to well head. The second row pipe holder is formed as hollow bush and may be directly secured inside the second channel of the first row pipe holder in air-tight manner. ^ EFFECT: increased reliability and decreased costs. ^ 3 cl, 1 dwg
申请公布号 RU2305747(C1) 申请公布日期 2007.09.10
申请号 RU20050138175 申请日期 2005.12.08
申请人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO "TATNEFT'" IM. V.D. SHASHINA 发明人 GARIFOV KAMIL' MANSUROVICH;IBRAGIMOV NAIL' GABDULBARIEVICH;FADEEV VLADIMIR GELIEVICH;ZABBAROV RUSLAN GABDELRAKIBOVICH;AKHMETVALIEV RAMIL' NAFISOVICH;KADYROV AL'BERT KHAMZEEVICH;VALOVSKIJ VLADIMIR MIKHAJLOVICH;VALOVSKIJ KONSTANTIN VLADIMIROVICH
分类号 E21B33/03 主分类号 E21B33/03
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