Field Development Projects
Managed-pressure drilling (MPD) is a relatively new technology, but its use is becoming more and more frequent in the industry.
The principle of MPD is to provide full control of the annular-pressure profile during drilling.
MPD is allowing the possibility of drilling wells that could not be drilled with conventional methods, where the bottomhole pressure is controlled exclusively by controlling the density of the drilling fluid.
Wells with severe-lost-circulation zones are an example of scenarios where MPD is bringing good results.
Although the use of MPD is helping drilling operation by allowing better pressure control in the annulus, there are also new risks to be taken into consideration. When using MPD, drillers normally are working in a narrow window between pore and fracture pressure, so the margin of error is smaller. The well-control process with MPD is also different from that of conventional drilling.
Because of the risks involved, appropriate training is mandatory for all personnel involved with the operation: everyone from people on the project team to those working on the rig. This is the key for the success of MPD.
Please enjoy the papers selected, one of which (SPE 165893) includes a discussion on MPD.
This Month's Technical Papers
Recommended Additional Reading
OTC 24358 Optimized Well-Path-Planning Decisions in Real-Time Monitoring Operations by Célia Falcone, Petrobras, et al.
SPE/IADC 163425 Optimal Bit, Reamer Selection and Operating Procedures Improve Hole-Enlargement Performance in Deepwater Gulf of Mexico by T. Ho, Baker Hughes, et al.
SPE 164018 Integration of Fracture, Reservoir, and Geomechanics Modeling for Shale-Gas-Reservoir Development by Jugal K. Gupta, ExxonMobil Upstream Research Company, et al.
Field Development Projects
Mauricio Pestana Rebelo, SPE, Offshore Well-Control Manager, Petrobras
01 October 2014
Ghawar vs. Permian Basin: Is There Even a Comparison?
While some try to put the two enormous oil producers toe-to-toe, the best thing to do might be to understand why they are different.
Three Big Numbers Shaping the Global Crude Picture
Take a quick look at some of the data points shaping upstream headlines and the movement of oil supplies around the world.
History Matching and Forecasting
Machine-learning methods have gained tremendous attention in the last decade. The underlying idea behind machine learning is that computers can identify patterns and learn from data with minimal human intervention. This is not very different from the notion of automatic history matching.
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10 April 2019
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