POWER CABLE PROTECTIVE DEVICE IN WELL Russian patent published in 2003 - IPC

Abstract RU 2204685 C2

FIELD: oil and gas producing industry; applicable for protection of electric centrifugal pump power cable from mechanical damage in round-trip operations of tubing with installation of electric centrifugal pump. SUBSTANCE: protective device has flexible material body and its fasteners located on coupling of tubing hanger. Protective device body is made in the form of sleeve embracing tubing hanger coupling and split in vertical plane into two symmetrical parts whose wall in horizontal plane have grooves and bosses, combined with bosses and grooves of the other part. Body external surface has grooves for laying of power cable and additional circular groove for power cable fasteners. Surfaces of bosses of both parts are serrated for engagement with each other and for locking of protective body components. To preclude disconnection of protective device components inside production string, sizes of bosses made in horizontal plane-exceed maximum gap between inner diameter of production string and outer diameter of protective device. EFFECT: increased device operate reliability and prevented mechanical damage to strings. 3 dwg

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RU 2 204 685 C2

Authors

Kul'Pin V.D.

Shkol'Nyj N.M.

Tomashevskij P.M.

Druzhinin E.Eh.

Khalaev G.G.

Dates

2003-05-20Published

2000-09-04Filed