| 摘要 |
A tubular insulating apparatus ( 10 ) for insulating a first tubular ( 8 ) within a second tubular ( 20 ) for use in the oil and gas exploration and production industry. An inner insulating member ( 4 ) surrounds the outer circumference of a pipeline ( 8 ) and a rigid spacer member ( 16 ) supports the pipeline ( 8 ) within the second tubular ( 20 ), the rigid spacer member ( 16 ) being provided at the ends of the apparatus ( 10 ). A substantially resilient member ( 2 ) is also provided on the outer most face of the inner insulating member ( 4 ) and a helically arranged cut ( 6 ) is provided therethrough in order to allow tensile and compressive forces caused by a bending moment acting along the longitudinal axis ( 14 ) of the apparatus ( 10 ) when e.g. the pipeline ( 8 ) is placed upon a reel, to be substantially relieved. Methods of manufacturing and installing the apparatus ( 10 ) are also provided. |
