Rotating Control Device Clamping Mechanism

Abstract

A closure arrangement for use on a rotating control device used during managed pressure drilling, said closure arrangement adapted for the installation of a bearing assembly adapted for insertion into a body, said body defining an upper circular opening and comprising an outer circumferential edge, said closure arrangement comprising:—a closure collet comprising:—a top section comprising an outwardly protruding shoulder and an inwardly protruding shoulder; and a plurality of spaced apart fingers extending downwardly therefrom forming a middle section and a bottom section of said collet; said fingers adapted to securely and removably fit around said outer circumferential edge of said body; and—a collet lock ring adapted to slidingly move between a first position defined by the middle section of the closure collet and a second position proximate the bottom section of the closure collet; wherein, when the closure arrangement is in use, the bearing assembly is securely inserted into said body and the collet lock ring is secured around the bottom section of the closure collet.

Description

FIELD OF THE INVENTION[0001]This invention relates to a rotating control device, more specifically to a new rotating control device assembly clamping mechanism.BACKGROUND OF THE INVENTION[0002]In the oil and gas industry, managed pressure drilling (MPD) is important in order to help in minimizing drilling hazards with pressure control. MPD involves actively controlling well pressure. By using a closed-loop system the operators using MPD can determine a well's downhole pressure limits and can also manage the annular pressure profile.[0003]Rotating control devices (RCDs) create a pressure-tight barrier in the wellbore annulus that enables safe fluid containment and diversion, a vital defense against drilling hazards. As a critical element of managed pressure drilling (MPD) systems, RCDs provide an additional line of defense to protect oil rig personnel and equipment.[0004]RCD devices provide an annular pressure seal in various diameter wells under standard temperature conditions. RCD ...

AI Technical Summary

Benefits of technology

The present invention is a rotating control device (RCD) for use in drilling oil and gas wells. The RCD is designed to attach the different parts of a clamping and closure assembly faster, making the system quicker to use.

Problems solved by technology

Hammer unions will increase overall width and can be damaged easily and cause leaks.

Flanges are difficult to install in the tight areas or some rigs as installing the studs is much more precise then the connections of a hammer union and hub and clamp.

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