NPR-A Legacy Wells Program
BLM completes work at 10 wells in the Cape Simpson and Barrow areas
BLM contractor, Alaska-owned Marsh Creek LLC, successfully completed work at ten of the 15 wells in the Barrow and Cape Simpson areas, including: plugging and abandonment of Simpson Core Test #13, #14, #14A, #15, #28, #29, #30, and #31, and wellhead removal at Simpson Core Test #27 and #30A. Additional work at Barrow and Cape Simpson, including surface clean up, is scheduled for summer 2016, with the remaining plugging and abandonment efforts to be concluded during the 2017 winter travel season.
In addition to the work Marsh Creek will be doing during late summer 2016, BLM contractor, Alaska Native-owned Olgoonik Construction Services, LLC, will begin both the surface clean-up and plugging and abandonment of three legacy wells near Barrow: Arcon Barrow Core Test #1, South Barrow #1, and South Barrow #2.
Abandonment well marker for Simpson Core Test #27.
|Welder cutting Simpson Core Test #28 below ground surface. ||View west as the material surrounding Simpson Core Test #27 is excavated in preparation for well cut-off procedure. |
BLM Completes Surface Clean-Up at Cape Simpson Legacy Wells Sites
BLM Alaska completed the removal of surface debris at three legacy well sites at Cape Simpson in the National Petroleum Reserve in Alaska (NPR-A) in August 2015.
The work was done through an interagency agreement with the U.S. Army Corps of Engineers, which contracted with Alaska-owned Mahto Construction, Inc. Surface debris removal and soil sampling occurred at Simpson Core Test 26, 30, and 30A.
Bentonite clay, concrete, oily debris, drums, wood, and scrap metal was collected at the three sites. A total of 135 cubic yards of debris was removed by slinging gathered waste in bulk bags and cargo nets with a helicopter. The waste was then air lifted to an adjacent tug and barge for off-site transportation and disposal. Because some of the debris was located in a natural oil seep, crews had to use winches, non-sparking axes, power tools, chest waders and even a canoe for gathering debris from within the seep.
Field crew removing debris from the natural oil seep at Test Well Site 30/30A
|Field crew preparing to collect a soil sample near the natural oil seep at Test Well Site 26||Oily waste debris removed from the Test Well 30 natural oil seep is staged for containerization and helicopter airlift from the site.|
BLM Completes Plugging of Legacy Wells at Umiat
BLM Alaska completed plugging of three legacy wells and removal of wellheads from three additional legacy wells at Umiat in the National Petroleum Reserve in Alaska (NPR-A) in April 2015.
Umiat Wells 1, 3, and 11 were plugged and wellheads removed. In addition, wellheads were removed at Umiat Wells 4, 8, and 10, which had been plugged previously. All well casings were cut off below ground level and buried beneath a mound of gravel and soil. All six wells had been drilled by the U.S. Navy from the mid-1940s to the early 1950s.
Excavation of Umiat #10 before removal of the wellhead Video Clip by BLM Zach Lyons