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Federal Register / Vol. 86, No. 148 / Thursday, August 5, 2021 / Rules and Regulations
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A temporary bridge developed from ballasted barges would be developed to assist in module transportation. Barges would be ballasted when the area is icefree and then removed and overwintered at West Dock before the sea freezes over. A staging area would then be used to prepare modules for transportation, maintenance, and gravel road development. Installation of ramps and fortification would utilize vibratory and impact pile driving. Seabed preparations and level surface preparations i.e., ice cutting, ice road development, gravel placement, screeding would take place as needed.
Breasting/mooring dolphins would be installed at the breach point via pile driving to anchor and stabilize the ballasted barges.
A gravel pad would be developed to assist construction of the GTP, adjacent camps, and other relevant facilities where work crews utilize heavy equipment and machinery to assemble, install, and connect the GTP modules.
To assist, gravel mining would use digging and blasting, and gravel would be placed to create pads and develop or improve ice and gravel roads.
Several types of development and construction would be required at different stages of the project. The construction of the Mainline would require the use of ice pads, ice roads, gravel roads, chain trenchers, crane booms, backhoes, and other heavy equipment. The installation of the PTTL
and PBTL would require ice roads, ice pads, gravel roads, crane booms, mobile drills or augers, lifts, and other heavy equipment. After installation, crews would work on land and streambank restoration, revegetation, hydrostatic testing, pipeline security, and monitoring efforts. The development of the ancillary facility would require the construction of ice roads, ice pads, as well as minimal transportation and gravel placement.
Alaska Stand Alone Pipeline ASAP
The ASAP is the alternative project option that AGDC could utilize, allowing North Slope natural gas to be supplied to Alaskan communities.
ASAP would require several components, including a Gas Conditioning Facility GCF at Prudhoe Bay; a 1,180-km 733-mi-long, 0.9-m 36-in-diameter pipeline that would connect the GCF to a tie-in found in southcentral Alaska called the Mainline; and a 48-km 30-m, 0.3-m 12-in-diameter lateral pipeline connecting the Mainline pipeline to Fairbanks referred to as the Fairbanks Lateral. Similar to the Alaska LNG
pipeline, only parts of this project
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would fall within the geographic scope of this ITR. These relevant project components are the GCF, a portion of the ASAP Mainline, and related ancillary facilities. Construction would include the installation of supporting facilities and infrastructure, ice road and pad development, gravel road and pad development, camp establishment, laydown area establishment, and additional infrastructure to support barge and module offloading.
Barges would be used to transport the GCF modules to West Dock in Prudhoe Bay and would be offloaded and transported by ground to the proposed facility site within the PBU. Module and supply deliveries would utilize deep draft tugs and barges to access an existing berthing location on the northeast side of West Dock called DH3.
Maintenance on DH3 would be required to accommodate the delivery of larger loads and would consist of infrastructure reinforcement and elevation increases on one of the berths.
In the winter, a navigational channel and turn basin would be dredged to a depth of 2.7 m 9 ft. Dredged material would be disposed of on ground-fast ice found in 0.61.2 m 24 ft deep water in Prudhoe Bay. An offshore staging area would be developed approximately 4.88 km 35 mi from West Dock to allow deep draft tugs and barges to stage before further transportation to DH3 and subsequent offload by shallow draft tugs. Other activities include seabed screeding, gravel placement, development of a sea ice road and pads, and pile driving vibratory and impact to install infrastructure at West Dock.
A temporary bridge composed of ballasted barges and associated infrastructure paralleling an existing weight-limited bridge would be developed to assist in transporting large modules off West Dock. Barges would be ballasted when the area is ice-free and then removed and overwintered at West Dock before the sea freezes over.
A staging area would be used to prepare modules for transportation, maintenance, and gravel road development. The bridge construction would require ramp installation, fortification through impact, and vibratory pile driving. Support activities development of ice roads and pads, gravel roads and pads, ice cutting, seabed screeding would also take place.
Breasting/mooring dolphins would be installed at the breach point via pile driving to anchor and stabilize the ballasted barges.
A gravel facility pad would be formed to assist in the construction of the GCF.
Access roads would then be developed to allow crews and heavy equipment to
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install and connect various GCF
modules. Gravel would be obtained through digging, blasting, transportation, gravel pad placement, and improvements to other ice and gravel roads.
The construction of the Mainline pipeline would require the construction of ice pads, ice roads, and gravel roads along with the use of chain trenchers, crane booms, backhoes, and other heavy equipment. Block valves would be installed above ground along the length of the Mainline. After installation, crews would work on land and streambank restoration, revegetation, hydrostatic testing, pipeline security, and monitoring efforts.
Pikka Unit The Pikka Development formally known as the Nanshuk Project is located approximately 83.7 km 52 mi west of Deadhorse and 11.3 km 7 mi northeast of Nuiqsut. Oil Search Alaska operates leases held jointly between the State of Alaska and ASRC located southeast of the East Channel of the Colville River. Pikka is located further southwest from the existing Oooguruk Development Project, west of the existing KRU, and east of Alpine and Alpines Satellite Development Projects.
Most of the infrastructure is located over 8 km 5 mi from the coast within the Pikka Unit; however, Oil Search Alaska expects some smaller projects and activities to occur outside the unit to the south, east, and at Oliktok Point.
The Pikka Project would include a total of 3 drill-sites for approximately 150 production, injectors, underground injection wells, as well as the Nanshuk Processing Facility NPF, the Nanushuk Operations Pad, a tie-in pad TIP, various camps, warehouses, facilities on pads, infield pipelines, pipelines for import and export activities, various roads ice, infield, access, a boat ramp, and a portable water system.
Additionally, there are plans to expand the Oliktok Dock and to install an STP
adjacent to the already existing infrastructure. A make-up water pipeline would also be installed from the STP to the TIP. Oil Search Alaska also plans to perform minor upgrades and maintenance, as necessary, to the existing road systems to facilitate transportation of sealift modules from Oliktok Point to the Pikka Unit.
Oil Search Alaska plans to develop a pad to station the NPF and all relevant equipment and operations i.e., phase separation, heating and cooling, pumping, gas treatment and compression for gas injections, water treatment for injection. All oil procured, processed, and designated for
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