Invention Grant
- Patent Title: Composite material structures having reduced signal attentuation
- Patent Title (中): 具有降低信号注意力的复合材料结构
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Application No.: US965782Application Date: 1997-11-07
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Publication No.: US5944124APublication Date: 1999-08-31
- Inventor: Dan Pomerleau , Brian Spencer , Mark Voghell , Doug MacLean , Paul Pastushak
- Applicant: Dan Pomerleau , Brian Spencer , Mark Voghell , Doug MacLean , Paul Pastushak
- Applicant Address: CAX Calgary
- Assignee: LWT Instruments, Inc.
- Current Assignee: LWT Instruments, Inc.
- Current Assignee Address: CAX Calgary
- Main IPC: E21B17/00
- IPC: E21B17/00 ; E21B17/10 ; E21B47/01 ; E21B47/08 ; E21B47/12 ; G01V1/40 ; G01V3/18 ; G01V5/04 ; F16L9/14 ; F16L39/00
Abstract:
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.
Public/Granted literature
- US5280794A Appliance for supporting women during childbirth Public/Granted day:1994-01-25
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