发明名称 |
Composite material structures having reduced signal attentuation |
摘要 |
The present invention relates to composite material structures having reduced signal attenuation properties. In particular, the invention relates to composite drillstring components with electromagnetic properties and acoustic properties that enable the use of electromagnetic, acoustic and nuclear sensing equipment to obtain data from a wellbore from within a drill pipe. In a specific embodiment, a composite tube is incorporated with end-fittings which enable its incorporation into a drillstring thereby permitting the use of logging equipment from within the composite tube.
|
申请公布号 |
US5944124(A) |
申请公布日期 |
1999.08.31 |
申请号 |
US19970965782 |
申请日期 |
1997.11.07 |
申请人 |
LWT INSTRUMENTS, INC. |
发明人 |
POMERLEAU, DAN;SPENCER, BRIAN;VOGHELL, MARK;MACLEAN, DOUG;PASTUSHAK, PAUL |
分类号 |
E21B17/00;E21B17/10;E21B47/01;E21B47/08;E21B47/12;G01V1/40;G01V3/18;G01V5/04;(IPC1-7):F16L9/14;F16L39/00 |
主分类号 |
E21B17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|