Abstract: A centraliser (10) for use in centralising tubing (12) in a bore (W) comprises a first end collar (14), a second end collar (16) and a number of elongate strut members (18). The strut members (18) are interposed between the first end collar (14) and the second end collar (16) and are circumferentially arranged and spaced around the first end collar (14) and second end collar (16). The strut members (18) have angled wing portions (32). The centraliser (10) comprises a retaining arrangement (20) for holding the strut members (18), which comprises a retainer member (22) extending circumferentially between and disposed through the strut members (18). The centraliser (10) comprises a release arrangement (24) configured to release the retaining arrangement (20) and permit the strut members (18) to move between radially retracted and radially extended positions.

Abstract: A centraliser (10; 110) for centralising tubing (T) in a bore (B) comprises a body (12; 112), one or more blades (14; 114) extending radially outwards from the body (12; 112). One or more of the blades (14; 114) receives a blade standoff (20; 120) which is disposed on and extends radially outwards from the blade (14; 114) with which it is associated. The blade standoff (20; 120) is configured to space the blade (14; 114) from the bore (B) and is configured to form a galvanic inhibitor between the blade (14; 114) and the bore (B).

Abstract: A centraliser (10) for use in centralising tubing (12) in a bore (W) comprises a first end collar (14), a second end collar (16) and a number of elongate strut members (18). The strut members (18) are interposed between the first end collar (14) and the second end collar (16) and are circumferentially arranged and spaced around the first end collar (14) and second end collar (16). The strut members (18) have angled wing portions (32). The centraliser (10) comprises a retaining arrangement (20) for holding the strut members (18), which comprises a retainer member (22) extending circumferentially between and disposed through the strut members (18). The centraliser (10) comprises a release arrangement (24) configured to release the retaining arrangement (20) and permit the strut members (18) to move between radially retracted and radially extended positions.

Abstract: A centraliser (10) for use in centralising tubing (12) in a bore (W) comprises a first end collar (14), a second end collar (16) and a number of elongate strut members (18). The strut members (18) are interposed between the first end collar (14) and the second end collar (16) and are circumferentially arranged and spaced around the first end collar (14) and second end collar (16). The strut member (18) have a first end portion (20), a second end portion (22), an intermediate portion (24) and angled wing portions (26) which extend from the intermediate portion (24).

Abstract: A centraliser includes a number of members extending between two collars for mounting the centraliser on a casing. The members are configured to contact a wall of the bore and centraliser the casing in the bore. The members are radially moveable between the casing and the bore wall. The members further include an intermediate portion and end portions, the end portions being relatively more flexible than the intermediate portion.

Abstract: A centraliser (10;110) for centralising tubing (T) in a bore (B) comprises a body (12;112), one or more blades (14;114) extending radially outwards from the body (12;112). One or more of the blades (14;114) receives a blade standoff (20;120) which is disposed on and extends radially outwards from the blade (14;114) with which it is associated. The blade standoff (20;120) is configured to space the blade (14;114) from the bore (B) and is configured to form a galvanic inhibitor between the blade (14;114) and the bore (B).

Abstract: A centraliser (10) for use in centralising tubing (12) in a bore (W) comprises a first end collar (14), a second end collar (16) and a number of elongate strut members (18). The strut members (18) are interposed between the first end collar (14) and the second end collar (16) and are circumferentially arranged and spaced around the first end collar (14) and second end collar (16). The strut member (18) have a first end portion (20), a second end portion (22), an intermediate portion (24) and angled wing portions (26) which extend from the intermediate portion (24).

Abstract: A centraliser includes a number of members extending between two collars for mounting the centraliser on a casing. The members are configured to contact a wall of the bore and centraliser the casing in the bore. The members are radially moveable between the casing and the bore wall. The members further include an intermediate portion and end portions, the end portions being relatively more flexible than the intermediate portion.