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Division approves Milne polymer projects
Kristen Nelson Petroleum News
The Alaska Division of Oil and Gas has approved amendments to Hilcorp Alaska’s plan of operations for its Milne Point unit on the North Slope, all related to polymer injection at the field.
In the previous plan, the 38th, Hilcorp completed a polymer facility at F Pad, allowing enhanced recovery of hydrocarbons, the division said.
In the 39th plan, approved in November, Hilcorp planned three polymer projects: installation and startup of the polymer facilities at Moose Pad, I Pad and E Pad.
Hilcorp also planned engineering/procurement for the S Pad polymer project and planned long-term evaluation of expanded polymer injection at I, H and S pads.
Hilcorp has been working with the University of Alaska Fairbanks, New Mexico Tech, Missouri S&T and the University of North Dakota on a project evaluating the effectiveness of polymer injection for enhanced production of Schrader Bluff formation oil at Milne Point (see story in the April 4, 2021, issue of Petroleum News).
Moose Pad On Aug. 17 the division approved a plan of operations amendment for conversion of a temporary polymer injection facility on Moose Pad at Milne to a permanent facility. “The facility is necessary to inject polymer to increase production from existing wells at Moose Pad,” the division said.
The temporary facility was placed at Moose Pad in the fall of 2020 to test feasibility of injecting polymer into I Pad wells. The division said that after successful testing, the facility was being made permanent. The facility, at the western end of the Moose Pad piperack, consists of several modules; a source water heater will be installed at the location.
S Pad On Aug. 16 the division approved an amendment to the Milne plan of operations for installation of a new polymer injection facility and associated tie-in piping at the Milne Point S Pad. The facility will consist of several modules and is expected to use an area of some 105 feet by 45 feet, with all project work to be conducted from existing roads and gravel pads.
The division said plan activities include:
*Placing rig mats and timbers on the gravel pad to support new connex and polymer storage silo.
*Installing water let-down connex, water tank, polymer trailer, polymer storage silo and pump and electrical building.
*Installing new header piping, polymer tubing and other necessary piping to connect to existing infrastructure.
*Connecting new infrastructure to electrical and water utilities.
I Pad On Aug. 12 the division approved a plan of operations amendment to make a temporary polymer injection facility at I Pad permanent.
The division said the temporary facility was placed at I Pad in the fall of 2020 to test feasibility of injecting polymer into existing I Pad wells to increase production.
“The testing was successful and this facility is being made permanent,” the division said. The facility is on the eastern end of the I Pad piperack and consists of several modules.
All of the plan amendments require submittal of certified As-Built surveys within a year of placement of the improvement.
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