Complex Geology Contributed to Deepwater Horizon Disaster, New Study Finds

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A study from The University of Texas at Austin is the first published in a scientific journal to take an in-depth look at the challenging geologic conditions faced by the crew of the Deepwater Horizon drilling rig and the role those conditions played in the 2010 disaster.

A study from The University of Texas at Austin is the first published in a scientific journal to take an in-depth look at the challenging geologic conditions faced by the crew of the Deepwater Horizon drilling rig and the role those conditions played in the 2010 disaster.

The well blowout killed 11 people and spewed oil for three months, spilling about 4 million barrels of oil into the Gulf of Mexico before crews successfully capped the well. Researchers and investigators since then have focused mostly on the engineering decisions and mistakes that led to the blowout and the ecological impacts of the oil spill that became one of the country’s worst environmental catastrophes. But researchers from the UT Jackson School of Geosciences, aided by thousands of pages of documents made public during lawsuits and legal proceedings, have pieced together how the geologic conditions more than 2 miles under the Gulf floor made drilling difficult and drove engineering decisions that contributed to the well’s failure and the ensuing blowout.

The study, published May 7 in Scientific Reports, documents, among other things, a significant and steep drop in pore pressure inside the rock near the bottom of the well that influenced the decisions that contributed to the blowout.

“The paper tells the geological story behind the catastrophe,” said Will Pinkston, who authored the paper while earning a master’s degree at the Jackson School. “It is high impact science, and I’m excited to reach a wider audience of people who don’t think about these issues every day.”

Read more at University of Texas at Austin

Image: A new study from The University of Texas at Austin looks at the complex geology that contributed to the 2010 Deepwater Horizon disaster. (Credit: US Coast Guard)