Composite dual channel drill pipes and method of manufacture

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11225843
APP PUB NO 20210032943A1
SERIAL NO

16528886

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Abstract

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A composite drill pipe including an inner pipe having a first diameter, an outer pipe having a second diameter greater than the first diameter, and a plurality of flow channels formed between the inner pipe and the outer pipe. The plurality of flow channels are formed by a plurality of walls extending radially between an outer diameter of the inner pipe and an inner diameter of the outer pipe. A method of forming a composite drill pipe includes pultruding a drill pipe comprising an inner pipe having a first diameter, an outer pipe having a second diameter greater than the first diameter, and a plurality of flow channels formed between the inner pipe and the outer pipe. The method also includes providing a multi-directional reinforcement over an outer diameter of the outer pipe.

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Patent Owner(s)

Patent OwnerAddress
SAUDI ARABIAN OIL COMPANYP O BOX 5000 DHAHRAN 31311

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hitchcock, Graham Aberdeenshire, GB 15 16

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