Annular BOPs
Seal around pipe, tools or an open hole with a single packing unit.
- Seals on a wide range of pipe sizes and shapes
- Stripping capability under pressure
- Replaceable packing units
Pressure control
Blowout Preventers and Well Control Equipment
Well control equipment is the last line of defence between a kick and a blowout. It has to work the first time, every time, and it has to be documented so that operators, contractors and authorities can verify it.
Kronborr supplies annular and ram blowout preventers and choke and kill manifolds, with complete documentation packages and support for testing and maintenance planning.
The range
Pressure Control: Product Families
Ram BOPs
Single and double ram preventers with pipe, blind and shear rams.
- Single and double body designs
- Pipe, variable bore, blind and shear ram options
- Ram locking systems
Choke and Kill Manifolds
Circulate out a kick under control.
- Manual and hydraulic adjustable chokes
- Positive (fixed) chokes
- Redundant flow paths with isolation valves
BOP Control Units
Accumulator units and remote panels that close the BOP stack.
- Accumulator bottle banks sized to stack closing volumes
- Electric and air-driven recharge pumps
- Driller's remote control panel
The BOP Stack
A blowout preventer stack combines an annular preventer, which can seal around almost any shape in the hole, with ram preventers that close on pipe, seal an open hole or shear the string. The stack is sized to the wellhead and rated to the highest pressure the well may see.
Choke and Kill Systems
Choke and kill manifolds let the crew circulate out a kick under control, holding back-pressure on the well with adjustable chokes while pumping kill-weight fluid. They are rated and tested to match the BOP stack they serve.
How to Specify Well Control Equipment
Specify the bore size, the rated working pressure, the service conditions (including sour service if hydrogen sulphide may be present), the temperature range and the ram configuration your well control plan requires.
Include your regulator and operator requirements in the quote request so that the documentation package matches what will be audited.
FAQ
Pressure Control: Common Questions
What is the difference between an annular and a ram BOP?
An annular BOP uses a reinforced elastomer packing unit that can seal around pipe of different sizes or shapes. A ram BOP uses steel rams with seals that close on a specific pipe size, seal an open hole, or shear the pipe.
Do you supply documentation for well control equipment?
Yes. Each unit is supplied with a documentation package. State the standards and regulator requirements that apply to your operation in your quote request.
Do you supply elastomers and spare parts for BOPs?
Yes. Packing units, ram seals and other elastomers are covered in our spare parts range.
Tell Us What You Are Drilling
Send your well program, sizes or part numbers. We reply with a quote and a reference number.