With the Petrel relief well planning & dynamic simulation module, technology for validating relief well plans is accessible by the well design planner right at the well design stage. This shortens the iteration process, enabling early iterations of the planned well and the testing of it under the full range of parameter uncertainty. Rapid evaluation of key uncertain parameters is possible, enabling the modeling of uncertainty scenarios early in the well planning process. As parameters are confirmed or new data arrives, the simulations can be quickly updated within the unified Petrel E&P software platform.
- Simulation requires only the designed target well and relief well trajectories, and a few key input parameters
- The simulation pumps kill mud down the relief well and into the blowing well, fast enough to establish sufficient pressure to stop the reservoir influx
- The multiphase transient simulator provides feedback on whether the target well can be killed according to the reservoir conditions, relief well profile, and available hydraulic power
- The results from the relief well dynamic simulation provides the worst-case gas discharge rate, the volume of kill mud required, and the time required to kill the well
- An assessment is made as to whether the maximum fracture pressure or hydraulic horse power is exceeded in the kill process
Contingency planning and relief wells
Drilling wells is ever more challenging due to the high temperatures and pressures found in new deepwater and deep-reservoir targets. Local drilling and production workflow regulations often require contingency planning and evaluation of a relief well.
Petrel Well Construction software enables drilling engineers and well-control specialists to perform relief well design and well planning, providing a powerful, accurate, and reliable tool to analyze and plan dynamic kill and relief well operations. simulation and validation uses the relief well dynamic simulation based on Drillbench Blowout Control software (powered by the OLGA multiphase flow simulator)—the market leading simulator for relief wells.
Integration and uncertainty planning
Applying geological knowledge to drilling operations works best when drilling and subsurface teams share a common understanding. The Petrel E&P software platform provides a common canvas for geoscientists and drilling engineers to create a shared earth model. The Well Construction module in the Petrel platform enhances collaboration, effectiveness, and knowledge sharing, leading to improved drilling performance, more productive wells, and lower risk and uncertainty—whether prior to drilling, during drilling, or in post-well reviews.