发明名称 |
ISOLERT BORKRAVEGAPDEL FOR ET TOROIDALT KOBLET TELEMETRISK SYSTEM |
摘要 |
<p>An insulated drill collar gap sub assembly for a toroidal coupled telemetry system including a first annular sub member (150) operable to be connected at one end to a drill collar and a second annular sub member (156) operable to form a part of a drill collar sub. The first and second annular sub members have interconnecting structural members (54, 58) operable to structurally interfere. The interconnecting structural members are dimensioned to form a continuous gap (160) between mutually opposing surfaces and a dielectric material (162) fills the gap to electrically isolate the first annular sub member with respect to the second annular sub member. A bearing member (164) is positioned between the first annular member and the second annular member and is coated with a dielectric insulation (166) to facilitate the formation of a drill collar gap sub assembly of structural and electrical integrity.</p> |
申请公布号 |
NO822954(A) |
申请公布日期 |
1982.09.01 |
申请号 |
NO19820002954 |
申请日期 |
1982.09.01 |
申请人 |
TELE-DRILL INC, |
发明人 |
MCDONALD, WILLIAM J.,;MAURER, WILLIAM C.,;NAGEL, DAVE D., |
分类号 |
E21B17/00;E21B17/16;E21B47/12;F16L15/04;F16L25/02;F16L37/244;(IPC1-7):21B/;01V/ |
主分类号 |
E21B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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