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  • Drilling Support
    Facilities




    EEIS specializes in providing engineering services for drilling support projects and has designed more Grind and Inject Facilities on the North Slope of Alaska than any other engineering company.
  • Drilling Support
    Facilities






    EEIS specializes in providing engineering services for drilling support projects and has designed more Grind and Inject Facilities on the North Slope of Alaska than any other engineering company.
  • Drilling Support
    Facilities






    EEIS specializes in providing engineering services for drilling support projects and has designed more Grind and Inject Facilities on the North Slope of Alaska than any other engineering company.

Grind Building and Truck Dump Building, CD1 Pad, Alpine Development Project, North Slope, Alaska

EEIS Consulting Engineers, Inc. (EEIS) was the prime consultant providing architectural/life safety design; civil, structural, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. The project consisted of a Grind Building and a Truck Dump Building located near the existing Waste Injection Facility. The facility also included four 1,000-barrel vertical tanks for fire water storage.


The buildings were designed to have a 30-year design life. The foundation systems consisted of piles protected by thermosyphons supporting modular steel floor skids. The Grind Building and Truck Dump Building were pre-engineered metal buildings. Four truckable steel modules housed the HVAC, electrical, and fire protection systems.


The Truck Dump Building provided a 2,800-square-foot, weather-protected space for offloading drill cuttings from Supersucker trucks to a pit for transfer to the Grind Building. The building also provided space to offload fluid wastes from Vac trucks for storage or injection.


EEIS provided conceptual design, facility engineering, tie-in design, procurement, fabrication, and construction support. EEIS developed Process Flow Diagrams (PFDs) and Piping and Instrumentation Diagrams (P&IDs) for the buildings.


EEIS developed a 3D model for the buildings, mechanical and electrical equipment, and piping and coordinated the 3D design with all design team members. Deliverables included drawings and specifications, design packages, long-lead items, procurement packages, vendor drawings, steel shop drawings, work packages with construction narratives, and as-built drawings and documents.



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Waste Disposal Facility, BP Alaska Drill Site 4, North Slope, Alaska

EEIS was the prime consultant providing architectural/life safety design; civil, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. This project consisted of a new Class 1 Waste Disposal Facility (WDF) on a new pad at the north end of Drill Site 4. The facility consisted of a Grind and Inject Unit, a fabric-covered Truck Offload Building (TOB), and a Charge Pump Module with a 600-barrel vertical tank for storing classified liquids.


The 6,000-square-foot Grind and Inject Unit was constructed with 11 truckable steel modules on two levels. The modules contained five interior fluid storage tanks, two high-pressure injection pumps, cuttings and slurry processing equipment, and the electrical and mechanical HVAC systems required to support the operation. A separate emergency generator module with fuel tank was provided adjacent to the facility.


The TOB was located next to the WDF. The TOB was 40 feet wide, 70 feet long, and 28.5 feet high. It provided a 2,800-square-foot, weather-protected space for offloading drill cuttings from Supersucker trucks to a pit for conditioning and transfer to the Grind and Inject Unit. Fluid wastes from vacuum trucks were pumped from four exterior truck offload stations by transfer pumps in the TOB and Charge Pump Module.


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Nanushuk Grind and Inject Facility, NDB Drilling Pad B, Nanushuk Project, North Slope, Alaska

This project involved the design of a centralized Grind and Inject (G&I) Facility that received, processed, and injected waste streams of water-based and oil-based slurry from up to three drilling rigs and two additional exploration rigs drilling simultaneously. EEIS was the prime consultant providing architectural/life safety design; civil, structural, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. EEIS also provided fire protection and suppression design and facility permitting.


The facility was designed for a 30-year design life and consisted of a 9,720-square-foot G&I Building, a 6,380-square-foot Truck Bay Building, 13 truckable steel modules, ten 1,000-barrel vertical storage tanks, an exterior Tank Truck Loading Area, stairs and access landings, and all associated process, electrical, HVAC, automation, and safety equipment.


All structures were supported on steel piles protected by thermosyphons. The G&I Building and the Truck Bay Building were pre-engineered metal buildings with modular steel panel floor systems. The G&I Building contained two grind process trains and three injection pumps. Each train had four horizontal storage tanks for coarse, fine, mix, and regrind slurry storage with associated shakers, mills, augers, agitators, and transfer pumps. The G&I Building also contained transfer pumps for five vertical process tanks and a camp effluent storage tank.


The Truck Bay Building had two truck bays large enough to allow 325-barrel vacuum trucks to offload inside the building. Two recessed dump tanks with submersible pumps received cuttings from Supersucker trucks. Cuttings offloaded in the Truck Bay Building were pumped to the G&I Building for processing. Classified liquids, camp effluent, utility water, and diesel were offloaded at the exterior Tank Truck Loading Area.


The 13 truckable steel modules were arranged into two groups and a single Charge Pump Module. Group 1 utility modules housed the control room/offices, locker/break room, shop/parts storage, and electrical and mechanical systems supporting those modules, the Truck Bay Building, and portions of the G&I Building. Group 2 utility modules housed the utility water and fire water pumping systems and the electrical and mechanical systems to support those modules and a portion of the G&I Building. The Charge Pump Module housed the classified produced fluids and diesel pumping systems.


Ten 1,000-barrel vertical API 650 insulated tanks contained processed fluids and slurries for injection, diesel fuel, classified produced fluids for injection, utility water, and fire water. The tanks were heated with electric bayonet immersion heaters. Tank top platforms were accessible by stairs or ladders.


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Waste Injection Facility, Eni Nikaitchuq Development, Oliktok Point, Alaska

EEIS was prime consultant providing architectural/life safety design; civil, structural, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. The on-shore Waste Injection Facility supported both drilling and long-term production injection. This fast-paced project included 10 truckable steel modules with three 600-barrel vertical storage tanks. The modules housed grinding and mixing equipment, storage and mixing tanks, injection and transfer pumps, all associated piping, and electrical, instrumentation, and HVAC systems. The facility and tanks were elevated on a pile-supported steel frame structure.


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Cuttings Reinjection Facility, BP Alaska Liberty Development, North Slope, Alaska

EEIS was prime consultant providing architectural/life safety design; civil, structural, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. The Cuttings Reinjection Facility processed cuttings piped from an adjacent drilling rig and pumped the processed slurry down a dedicated injection well. The facility consisted of 10 truckable steel modules and two 600-barrel vertical storage tanks. The modules housed grinding and mixing equipment, storage and mixing tanks, injection and transfer pumps, all associated piping, and electrical, instrumentation, and HVAC systems.


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Grind and Inject Unit, ConocoPhillips Alaska Alpine Field Development, North Slope, Alaska

EEIS was prime consultant providing architectural/life safety design; civil, structural, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. The mobile trailer-mounted Grind and Inject Unit processed drill cuttings and pumped them to an injection well. The unit consisted of 11 truckable steel modules that housed grinding and mixing equipment, storage tanks, and transfer and injection pumps required to inject the process slurry. The Grind and Inject Unit also included space for a cement unit and featured an articulated drag chain housing to receive cuttings from the drilling rig.


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Grind and Inject Facility, BP Alaska Badami Development, North Slope, Alaska

EEIS was prime consultant providing architectural/life safety design and civil, structural, mechanical process, mechanical HVAC, and electrical engineering. The Grind and Inject Facility consisted of 12 truckable steel modules that housed grinding and mixing equipment, storage and mixing tanks, injection and transfer pumps, and associated piping, electrical, instrumentation, and HVAC systems. The project also included the design of two generator modules and a Cuttings-Wash Trailer. Civil engineering consisted of the design of roads, pipe racks, road crossings, and a cuttings storage pit.


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Alpine Bulk Plant, ConocoPhillips Alaska Alpine Development, North Slope, Alaska

EEIS was prime consultant providing architectural/life safety design; civil, structural, mechanical process, mechanical HVAC, and electrical engineering; and instrumentation and piping design. The main project was a bulk storage and mud mixing facility. The Bulk Plant included a pre-engineered metal building that housed mud mix pits, a shop, and offices. It also included a generator module and a boiler/storage module. The facility contained two storage areas: one area for the mud mix pits and six 600-barrel vertical tanks and one area with 24 silos for storing drilling materials—cement, barite, and gel. The mud mix pits were 36-foot-long, 11-foot-wide, 10-foot deep horizontal steel tanks with pumps, agitators, and other mud preparation equipment. The project design included the foundations for the 24 silos and the pneumatic piping from the silos to the building. It also included the structural design of the mud mix pits.