WELLHEAD LUBRICATOR ROTARY ASSEMBLY Russian patent published in 2024 - IPC E21B23/14 E21B47/00 B66D1/395 

FIELD: mining; machine building.

SUBSTANCE: invention relates to a rotary assembly of a wellhead lubricator. Rotary assembly comprises a housing. It also comprises a system of small rollers installed along the enveloping line of curvature in the inner cavity of this housing and corresponding to the used geophysical cable. Housing of the assembly is made of a bent high-pressure pipe and has a T-branch with a flange cover. Additional roller is installed in the inner cavity of the T-branch at the level of the corresponding external line of curvature of the turn of the geophysical cable. Each roller is installed on its centring element on two bearings and an axis. Centring element of the additional roller is fixed on the flange cover. Rest of the centring elements are connected in a chain between the end elements of the housing. In order to hold the body itself at the required level, an additional folding post with adjustable height is made, which is equipped with a power screw pair with a manual drive and installed on a sledge. Sledge is fixed to the well head using a folding frame installed on the sledge.

EFFECT: creation of a rotary assembly of a wellhead lubricator with the possibility to conduct geophysical investigations of horizontal wells with an inclined mouth using a geophysical cable.

1 cl, 5 dwg