Rig Assist Snubbing Process
As its name implies, the “rig assist” process requires a workover or drilling rig to accomplish its task. All of the normal equipment associated with the workover or drilling rig is still used during the snubbing/stripping procedure. The rig’
s draw works machinery
supplies the lifting force when in the stripping mode. The rig’
BOP stack provides the backup to the snubbing units stripping BOPs. Depending on the job parameters, additional BOPs may be needed in the primary BOP stack that is controlled by the rigs accumulator system. In higher-pressure situations, or wells with H2S content, supplemental equipment such as choke manifolds, gas separators, and flare stacks may be necessary.
Hydraulic Rig Assist installed on top of workover rig BOP stack. Well pressure is controlled by surface BOPs.
Rig Assist Unit Specifications:
- Truck mounted and mobile to get to even the most isolated locations
- Built tough to withstand the most extreme weather – operates in temperature ranges of -35°C to +50°C
- BOP system meets API 6a standards
- Pressure containing equipment meets NACE TRIM specification for H2S service
- Oilfield proven for the most rugged terrain conditions found in the oil patch
- Continuous research, development and maintenance to ensure the latest in innovative technologies
All load bearing and pressure containing components of the equipment have engineered ratings and certification documentation – we have been a leader in this area.
Diagrams of Rig Assist and Workover BOPs: