A centraliser for use in centralising casing or other tubulars such as tubulars in an oil or gas well comprising an annular body with a bore extending through the body and one or more blades, the centraliser being adapted to fit around a tubular to be centralised, and comprising a tempered metal such as austemperised ductile iron (ADI).
申请公布号
CA2402342(C)
申请公布日期
2008.09.02
申请号
CA20012402342
申请日期
2001.03.12
申请人
DOWNHOLE PRODUCTS PLC
发明人
CLARK, ALISTAIR BERTRAM;NEWTON, BARRY;BARRON, WILLIAM;KIRK, IAN ALASTAIR;RIMMER, ARRON