A casing centraliser which comprises a tubular body (11) adapted to fit closely about a joint of casing and a plurality of blades (12) extending longitudinally along the outer diameter of the body, the centraliser being formed of a material comprising a bronze alloy.
申请公布号
WO9936660(A1)
申请公布日期
1999.07.22
申请号
WO1999GB00033
申请日期
1999.01.18
申请人
RAY OIL TOOL CO., LTD.;RAY OIL TOOL CO., LTD.;MALE, ALAN, LESLIE;MIKOLAJCZYK, RAY
