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    • 1. 发明授权
    • BOREHOLE CASING CENTRALISER
    • 钻孔中心
    • EP2318641B1
    • 2018-03-21
    • EP09797255.8
    • 2009-06-30
    • Kwik-Zip Pty Ltd
    • LINAKER, Jason
    • E21B17/10
    • E21B17/1021
    • A centraliser segment (11) comprising a first collar portion(15), a second collar portion (17) and bow element (19) extending between said first collar portion and said second collar portion to maintain the collar portions in spaced relation to each other, said bow portions having an intermediate portion which lies to one side of the plane accommodating the collar portions, a first connector element (21) provided at one end of the collar portions and second connector element (23) provided at the other end of the collar portions, said first connector elements are engagable with said second connector elements of the same or another centraliser segment such that one or more said centraliser segments are connectable together to form a centraliser which in use is capable of being received around a borehole casing, said first and second connector element having an adjustment element which can cause the diameter of the centraliser can be varied by operation of the adjustment element (41) wherein the adjustment is controllably and continuously variable over a range of diameters.
    • 2. 发明公开
    • BOREHOLE CASING CENTRALISER
    • 钻孔中心
    • EP2318641A1
    • 2011-05-11
    • EP09797255.8
    • 2009-06-30
    • Kwik-Zip Pty Ltd
    • LINAKER, Jason
    • E21B17/10
    • E21B17/1021
    • A centraliser segment (11) comprising a first collar portion(15), a second collar portion (17) and bow means (19) extending between said first collar portion and said second collar portion to maintain the collar portions in spaced relation to each other, said bow portions having an intermediate portion which lies to one side of the plane accommodating the collar portions, a first connector element (21) provided at one end of the collar portions and second connector element (23) provided at the other end of the collar portions, said first connector elements are engagable with said second connector elements of the same or another centraliser segment such that one or more said centraliser segments are connectable together to form a centraliser which in use is capable of being received around a borehole casing, said first and second connector element having an adjustment element which can cause the diameter of the centraliser can be varied by operation of the adjustment element (41) wherein the adjustment is controllably and continuously variable over a range of diameters.
    • 包括第一领部分(15),第二领部分(17)和在所述第一领部分和所述第二领部分之间延伸以保持所述领部分彼此间隔开的弓形装置(19)的中央横档(11) ,所述弓形部分具有位于容纳所述套环部分的平面的一侧的中间部分,设置在所述套环部分一端的第一连接器元件(21)和设置在所述第二连接器元件(23)的另一端的第二连接器元件 所述第一连接器元件可与同一个或另一个定心器区段的所述第二连接器元件接合,使得一个或多个所述定心器区段可连接在一起以形成在使用中能够被接纳在钻孔外壳周围的中央器,所述 具有可引起扶正器直径的调节元件的第一和第二连接器元件可通过调节元件(41)的操作而改变,其中 调节在一系列直径范围内可控且连续可变。
    • 4. 发明公开
    • BOREHOLE CASING CENTRALISER
    • BOHRROHRZENTRIERER
    • EP2318641A4
    • 2015-12-09
    • EP09797255
    • 2009-06-30
    • KWIK ZIP PTY LTD
    • LINAKER JASON
    • E21B17/10
    • E21B17/1021
    • A centraliser segment (11) comprising a first collar portion(15), a second collar portion (17) and bow element (19) extending between said first collar portion and said second collar portion to maintain the collar portions in spaced relation to each other, said bow portions having an intermediate portion which lies to one side of the plane accommodating the collar portions, a first connector element (21) provided at one end of the collar portions and second connector element (23) provided at the other end of the collar portions, said first connector elements are engagable with said second connector elements of the same or another centraliser segment such that one or more said centraliser segments are connectable together to form a centraliser which in use is capable of being received around a borehole casing, said first and second connector element having an adjustment element which can cause the diameter of the centraliser can be varied by operation of the adjustment element (41) wherein the adjustment is controllably and continuously variable over a range of diameters.
    • 5. 发明公开
    • CENTRALISER SEGMENT AND CENTRALISER
    • 对中和对中装置
    • EP2260173A1
    • 2010-12-15
    • EP09717714.1
    • 2009-03-05
    • Kwik-Zip Pty Ltd
    • LINAKER, Jason
    • E21B17/10
    • E21D21/0093E02D5/80E21B17/1021
    • A centraliser segment (11) which can, by itself or in combination with one or more corresponding centraliser segments, be used to form a centraliser (13) which can in use be clampingly engaged around an element (10) which is receivable in a borehole, said centraliser segment comprising a first collar portion (15), a second collar portion (17) and at least one bow element (19) extending between said first collar portion and said second collar portion to maintain the collar portions in spaced relation to each other, wherein the collars have an inner face which in use is to bear against the element and wherein said bow element has a curvature along its length to define an intermediate portion which extends laterally from the centraliser segment away from the inner faces of the collars, at least the intermediate portion of the bow elements having a convex transverse profile, a first connection element (21) provided at one end of the collar portions and second connection element (23) provided at the other end of the collar portions, wherein in use said first connection element are engagable with said second connection element of the same or another centraliser segment such that one or more said centraliser segments are connectable together to form a centraliser which in use is capable of being received around the element whereby the intermediate portions are radially outermost, said first and second connection element having an adjustment means which can cause the diameter of the centraliser to be varied.