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            The drilling tool

            The drilling tool

            Hole Opener

            TIME:2017/3/21 14:49:23

            固定直徑擴孔器  

            Hole Opener

            固定直徑擴孔器用于陸地油田和海洋油田擴鉆表層大孔,即它被用來擴大牙輪鉆頭預先鉆完的井眼,或者接于鉆頭之上,同時完成鉆、擴井作業。

            牙輪有三種類型:“SM”型牙輪用于軟到中硬地層;“MH”型牙輪用于中硬至硬地層;“XH”型牙輪用于硬地層。

            Fixed Diameter Hole Opener is used for enlarging the surface hole which drilled by cone bit in advance, or connected above the cone bit. It applies to Onshore and offshore oilfield.

            Cutters type: "SM": Soft to medium formation; "MH": Medium to hard formation; "XH": Hard formation.

            Specifications

            Model

            Opening Size
            mm(inch)

            Number
            of
            Cutters

            Pilot Hole(Min.) mm(inch)

            Fishing Neck
            mm(inch)

            UpperConn.

            LowerConn.

            ID
            mm(inch)

            OAL
            mm(inch)

            KZ3-216

            215.9
            (8 1/2)

            3

            165.1
            (6 1/2)

            120.7
            (4 3/4)

            NC38

            3 1/2REG

            25.4
            (1)

            1524
            (60)

            KZ3-311

            311
            (12 1/4)

            3

            215.9
            (8 1/2)

            203.2
            (8)

            6 5/8REG

            4 1/2REG

            38.1
            (1 1/2)

            1524
            (60)

            KZ3-444

            444.5
            (17 1/2)

            3

            266.7
            (10 1/2)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            57.2
            (2 1/4)

            1752
            (69)

            KZ3-584

            584
            (23)

            3

            355.6
            (14)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            76.2
            (3)

            1753
            (69)

            KZ3-660

            660.4
            (26)

            3

            444.5
            (17 1/2)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            76.2
            (3)

            1753
            (69)

            KZ3-813

            812.8
            (32)

            3

            444.5
            (17 1/2)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            76.2
            (3)

            1850
            (72-27/32)

            KZ3-914

            914.4
            (36)

            3

            609.6
            (24)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            76.2
            (3)

            1905
            (75)

            KZ4-914

            914.4
            (36)

            4

            444.5
            (17 1/2)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            89
            (3 1/2)

            2650
            (104 3/8)

            KZ4-813

            812.8
            (32)

            4

            444.5
            (17 1/2)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            76.2
            (3)

            2540
            (100)

            KZ6-1067

            1066.8
            (42)

            6

            660.4
            (26)

            241.3
            (9 1/2)

            7 5/8REG

            7 5/8REG

            76.2
            (3)

            1955
            (77)


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