ORIGINAL POSTING – August 20, 2013: Even as discussion heats up for new offshore drilling in the Atlantic Ocean and Arctic Sea, another gas rig is blazing away, this time in the Caspian Sea. On August 17, Exploration Well No. 90 in the Bulla Deniz gas field suffered a blowout as it neared a depth of 6,000 meters, and subsequently caught fire. Three days later, on August 20 at 22:37 UTC (6:30 PM Eastern), the Visible Infrared Imager Radiometer Suite (VIIRS) instrument on the Suomi NPP satellite continues to detect large amounts of heat radiating from the site. Clouds obscured the site on the most recent pass of the Terra satellite (MODIS), but we will continue to monitor what we can of the fire and for any evidence of oil or other pollutants on the water.
|Above: An annotated, cloud-free Landsat 8 image from a week before the blowout shows the area in much higher detail than MODIS images. This oblique view looks north toward the Azerbaijani capital of Baku which is approximately 60 kilometers away. Near the detected heat from the burning rig you can see dense clusters of production platforms in this area of the Caspian Sea, and to the northwest, platforms are so close together they are appear to be connected by a causeway. Raw VIIRS data from NOAA attempts to estimate the intensity of the heat emitted by the fire, but we are not yet confident how much faith we can have in the accuracy of these detections. We are sure they are hot and bright, but teasing out accurate, quantifiable data is complicated.|
This burning rig is yet another reminder this summer that offshore drilling is risky business. In early July, a rig at Ship Shoals Block 225 suffered a blowout while plugging a well that had been out of production since 1998. Later in July the Hercules 265 rig was also reworking an older gas well when the operators lost control of the well and had to evacuate. That night the rig ignited and blazed for three days until the well “bridged over” on itself, choking off the flow of gas to the surface. The risk of offshore oil and gas development in aging oil and gas fields, as well as the dangers of deepwater exploration, must be considered in any new proposition to expand offshore oil and gas drilling to waters off Virginia Beach, North Carolina’s Outer Banks, and the unforgiving Arctic.
This is a developing story, please check back for updates.