Blowout Contingency Planning

The contingency plans are normally related to planned exploration activity, field development projects or other risk management studies.

add energy prepares contingency plans for the operator that meet the regulations given by Ptil (Petroleum Safety Authority Norway), both governmental (The Norwegian Activity Regulations/NORSOK D010 in Norway) and operator specific.

Typical deliverables are:

• Identification of blowout scenarios
• Calculation of base case blowout rates for each of the scenarios
• Sensitivity studies with respect to a few key input parameters
• Proposed distribution with weighted blowout rate and duration for the incidents
• Evaluation of possible intervention options
• Calculation of dynamic kill requirements for relief well contingency
• The contingency plans may also include other aspects, such as
• Dynamic kick tolerance evaluation
• Shallow gas evaluation including kill requirements
• Evaluation of use of pilot hole during drilling
• Evaluation of maximum dynamic pressure and temperature during shut-in
• Evaluation of alternative casing design with respect to well control

add energy offers all aspects of well control contingency planning, including but not limited to:

• Blowout phase
• Identify hypothetical scenarios
• Simulate blowout rates (Input for environmental calculations)
• Dynamic kill phase
• Evaluate Kill option (Bullheading, dynamic kill)
• Calculate Kill fluid
• Calculate Kill rate
• Required Equipment
• Relief well drilling phase (*)
• Seabed/surface conditions
• Wind and wave directions
• Directional survey and casing program

If you would like to know more about contingency planning and what value it can mean to you and your company, please call Dr. Ole B. Rygg in add energy on telephone +47 66 98 32 90 or via e-mail Ole B. Rygg. 

*) Relief well drilling engineering is done in co-operation with John Wright Company