TOOL FOR STAFFING-BOX EXTRACTION AND GLAND INTO CASING HEAD STUFFING-BOX OF WELL FLOW HEAD EQUIPMENT Russian patent published in 2017 - IPC E21B33/00 B25B27/00 

FIELD: oil and gas industry.

SUBSTANCE: tool for staffing-box extraction and gland into casing head stuffing-box of well flow head equipment, comprising a device for holding a lid at the polished rod, a stuffed sleeve fixed at the lever with a handle and having external diameter according to the internal diameter of the stuffing-box chamber of the casing head stuffing-box, a polished rod slot, an insert with an element for staffing-box extraction. Wherein the lever with a handle rests through the height-adjustable screw-nut screwed joint on instrument fastening mechanism to casing head struffing-box, consisting of two hemispheres pivotally connected to each other and fixed to each other by clamping screw andhold-down nut. The stuffed sleeve, depending on the aim - staffing-box extraction or gland - is equipped with a removable insert in its lower part, which simultaneously serves as stuffed sleeve fixator relative to the polished rod from horizontal movement and can comprise an element for staffing-box extraction. Wherein an additional fixator is mounted at the upper part of the stuffed sleeve which fixates the suffed sleeve relative to the polished rod from horizontal movement.

EFFECT: enhanced funcitonal responsibilities.

2 cl, 3 dwg