DEVICE FOR SEALING CABLE OF IMMERSED ELECTRIC PUMP AT WELL HEAD Russian patent published in 1995 - IPC

FIELD: drilling. SUBSTANCE: bearing washer, sealing washers, and pushing member with axial passages for cable conductors, all located in row in diametral plane, are placed in cylindrical body. Each sealing washer is made in the form of two similar parts with joint surface. In interval between axial passages the joint surface is coincident with surface where cable conductors are placed, and on ends it is with diametral surfaces which in plane pass in symmetric manner about both main washer axes through centers of end axial passages, along another side where cable conductor surface is located, on another half of washer height. There is horizontal joint surface. Thrust nut is screwed on the body and press thrust member. Thrust washer and thrust member are of dielectric material. EFFECT: high reliability. 5 dwg