The Underground Blowout

Impact of an historic underground gas well blowout on the current methane chemistry in a shallow groundwater system

“…While the frequency of blowouts is relatively low [∼1:1,000 wells drilled ( 14 )], their potential environmental impact is huge, as evident from high-profile cases such as the Deepwater Horizon ( 15 ) and Aliso Canyon ( 16 ) blowouts. In some cases, the pressures generated during a blowout do not escape at the surface but form a fracture network that allows the well to blow out underground ( 17 ). When these fractures reach the surface, they may negatively impact the chemistry of shallow groundwater by the massive introduction of methane ( 18 ).…”

Metamodeling of structural failure: Case study of API S-135 steel tube cut in BOP

“…Blowouts causes risk of explosions, losses and decrease in reservoir pressure and, consequently, the amount of oil to be extracted. In order to avoid such undesirable event, a mechanical BOP (Blowout preventer) was developed as a large hydraulically operated arrangement of valves and closure devices, designed, as the name implies, to prevent blowouts, in an operation named "well control" [2]. BOP was invented by James Smither Abercrombie and Harry S.…”

“…It is suggested a deeper characterization of API S-135 steel, including testing plane specimens to cover a wider range of stress states and temperature effects, similar to real well conditions [2]. Due to COVID-19 outbreak it was not possible to perform those tests and characterization was performed in high triaxiality region.…”

Risk Ranking and Well Control Measures of Drilling Blowout in Xinjiang Oilfield

“…Well blowout and uncontrollable blowout are great accident during drilling, which could easily lead to casualties, equipment destroyed, oil and gas wells scrapped, contamination of the natural environment, and so on [1,2]. Xinjiang oilfield, of which the major exploration and development area is Jungger Basin and area surrounding basin.…”