Wirth pile top drill rigs. Reliable systems for on- and offshore

Transcription

1 Wirth pile top drill rigs Reliable systems for on- and offshore

2 2 About us Solid foundations with Wirth pile top systems About Aker Solutions Aker Solutions provides oilfield products, systems and services for customers in the oil and gas industry world-wide. Since 1895, Aker Solutions in Erkelenz has been a leading supplier of civil construction products for largescale projects. Our global network enables us to provide full local service. Experts at your disposal Aker Solutions is your first choice for reliable pile top systems for onshore and offshore applications. Cost efficiency and outstanding performance are the key factors that make us stand out from the competition. Our experienced specialists provide comprehensive advice on selecting the correct equipment for the individual site conditions from the tender phase right the way through to project execution. Venezuela Orinoco Bridge Three Wirth PBA 818 and one Wirth PBA 612 to install 156 piles (bridge length: 3.2 km), with diameters of 2.4 m and 1.8 m, and depths of up to 60 m Consórcio BRAVE Australia Tanker terminal Wirth PBA 612/2 000/200 for raker piles at an inclination of up to 1:3, with drilling diameters of up to 1.25 m and depths of up to 50 m RG Tanna Coal Terminal Wharves, Port of Gladstone, Australia, Courtesy of Central Queensland Ports Authority

3 3 Areas of application Areas of application by Aker Solutions provide the most efficient solution when it comes to setting up deep and large-diameter foundations in hard rock. They have been successfully deployed in various applications, both onshore and offshore: n Superstructures and buildings n Drilling platforms, barges and jack-ups n Harbours, jetties, dry docks and dolphins n Bridges, piers and causeways n Marine sewerage diffusers n Offshore wind farms n Dam rehabilitation The Wirth PBA with the high torque power swivel is the ideal machine for hard rock drilling, applying the following special methods: n Pile rock socketing n Hard rock drilling n Anchor drilling n Secant wall n Overreaming n Bell-out of the rock socket USA/New Jersey widening of Driscoll Bridge Wirth PBA 818/2 500/300 used for the building of a third bridge spanning a distance of feet and 28.3 feet wide, with a drilling diameter of mm and depths of up to 50 m Hong Kong Sunley Wirth PBA 936/3 000/300 Ventilation shafts for a metro tunnel, shaft diameter 3.0 m up to 90 m depth including 19 m rock socket in hard granite with 230 MPa

4 4 Benefits to you We drill through hard rock deeper and faster benefits to you Close consultation and support Our experts provide comprehensive advice, right from the pre-engineering and tender phases. This includes giving an indication of expected rates of progress along with advice on the selection of supporting equipment. Aker Solutions drilling experts are available for commissioning and for training personnel. Outstanding drilling performance In each class, Wirth PBAs have an excellent power/weight ratio. Maximum drilling performance is guaranteed, even under the toughest conditions, along with easy and fast equipment handling. Economical RC drilling Aker Solutions is the world market leader in reverse circulation drilling. This method is highly efficient, especially for large diameters and great depths. Quick assembly The modular design and the quick-action multi-couplings ensure a fast and easy set-up of the drill rig. Unmatched availability The use of special select materials, combined with experience gained over more than 25 years, has led to higher demands concerning the quality of production. As a result, Aker Solution has achieved the highest availability for years, combined with a low sparepart consumption rate and low maintenance costs. Maximal versatility Exchangeable cutters ensure that drilling is possible in varying geological formations. Different diameters can be created by just one machine, by exchanging the drill bit accordingly. The drilling depth can be increased simply by extending the drill-pipe length. ( 24/7 High independency An onboard crane allows equipment to be handled independently of the installation crane. High availability of spare parts hotline Our spare parts service guarantees you receive original spare parts.

5 5 Experts at your disposal Experts at your disposal Rig arrangement 1 Pile top drill rig Crane 3 Hydraulic power pack 4 Air compressor Drill string 5 6 Mud tank system Our experienced experts provide comprehensive advice all over the project. This includes support in the selection of further equipment for the successful operation of a Wirth PBA as well as an indication of expected rates of progress.

6 6 References References More than 250 have proven to be outstandingly reliable and efficient in numerous projects around the world. USA/Wisconsin Elm Road Generating Station Four water intake shafts in limestone with a strength of 150 MPa, each with a diameter of 4.5 m, a depth of 55 m and an average penetration rate of 0.25 m/h Brazil Peixe Angical Piles with a diameter of 1.8 m and a depth of up to 78 m for a secant cut-off wall to stop the seepage of the existing dam China/Hong Kong Stonecutters Bridge Wirth PBA 936/3 000/300 for foundation of flyover piles, each with a diameter of 3.0 m and depths of more than 100 m.

7 7 References UK/West Coast Burbo windfarm Pile foundation for three MW wind turbines, with a drilling diameter of 4.5 m and depths of up to 60 m Australia North West Shelf Wirth PBA 936/3 000/300 for foundation of the Angel oil and gas platform. Drilling diameter of 3.0 m and a drill string length of up to 110 m Woodside Energy Ltd. Republic of South Africa/Cape Town Ben Schoeman dock extension Wirth PBA 612 for foundation of 200 piles, each with a diameter of 1.25 m and a depth of up to 55 m

8 8 References References USA/California Carquinez Bridge Wirth PBA 928/3 000/300 for the bridge foundation with piles of diameter 2.7 m (enlarged to 3.3 m, in part) USA/California San Francisco Oakland Bay Bridge Wirth PBA 933/3 000/300 for the reinforcement of the San Francisco Bay Bridge Canada/Saint John Canaport LNG terminal Wirth PBA 612 for foundation of 60 piles, each with a diameter of 1.12 m and a depth of 80 m

9 9 References USA/Alabama W.F. Lake George Dam Cut-off wall in front of an active dam with more than 450 piles, each with a diameter of 1.27 m and a depth of up to 75 m. Formation drilled: various layers of limestone, with strengths of up to 135 MPa, and unconsolidated sand. USA/Massachusetts Wolf Creek Dam Wirth PBA 818/2 500/300 for a cut-off wall, with a drilling diameter of 1.27 m, depths of up to 90 m, rock strengths of up to 150 MPa TREVIICOS Bahrain Saudia Arabia Causeway A 25 km highway with bridges totalling 12.5 km in length, 489 piles with diameters ranging from 3.75 to 4.0 m; two rigs worked simultaneously from jack-up barges, with each rig drilling and installing four piles per week Walter Bibikow/JAI/Corbis

10 10 Reverse circulation drilling Highest efficiency with reverse circulation drilling Aker Solutions is the world market leader in reverse circulation drilling (RCD). This method sets the standards for cost effectiveness and versatility. The RCD method, also referred to as airlift drilling, is well-established as a robust and straightforward means of operation, which is highly effective for large diameters and great depths, both in onshore and offshore applications. Principle of operation: Compressed air is injected into the drill pipe below water level and just above the cutting head. As the air rises and expands within the drill pipe, the density in the internal liquid column is greatly reduced, leading to a difference in pressure between the liquid in the drill hole outside and the liquid inside the drill pipe. Due to the higher density in the outer column, the solids pass from the drill hole through the cuttinghead suction suction opening, and rise up through the drill pipe. Provided that the correct air/liquid flow is established within the drill pipe, solids will be transported to the surface according to the airlift principle. The differential pressure and thus the conveying capacity depend on the rate and volume of the compressed air injected, the depth of injection and the delivery head. Airlift swivel Compressed air from compressor Power swivel or rotary table Discharge hose Standpipe Muck Airlift drill pipe Mud pit Compressed-air inlet valve Rock bit

11 11 Technical data Pile top drill rig 408 / / / / / / / / / / 330 Maximum drilling diameter 1.3 m 51 in 4.3 ft 2.0 m 79 in 6.5 ft 2.5 m 98 in 8.2 ft 3.2 m 126 in 10.5 ft 6 m 236 in 19.7 ft Maximum power swivel torque 81 knm ft lb 119 knm ft lb 180 knm ft lb 360 knm ft lb 500 knm ft lb Maximum drilling speed infinitely variable 38 rpm 34 rpm 30 rpm 20 rpm 15 rpm Maximum drill string weight 40 t 45 t 90 t 120 t 240 t Maximum thrust force 400 kn lb 588 kn lb 800 kn lb kn lb kn lb Maximum pull back 600 kn lb 650 kn lb kn lb kn lb kn lb Hydraulic power pack rating 162 kw 220 hp 273 kw 371 hp 273 kw 371 hp kw hp kw hp Unit weight drill rig 17.0 t 22.0 t 28.0 t 33.0 t 64.0 t Unit weight hydraulic power pack 4.0 t 6.5 t 6.5 t 10.0 t 10.0 t Unit weight hydraulic clamping device Drill pipe data 3.0 t 7.0 t 9.0 t 12.5 t Dependent on diameter NW (internal diameter) 200 mm 7.87 in 200 / 300 mm 7.87/11.80 in 300 mm in 300 mm (HT) in 330 mm (HT) 13.0 in Maximum length per rod 3 m 118 in 9.8 ft 3 m 118 in 9.8 ft 3 m 118 in 9.8 ft 3 m 118 in 9.8 ft 3 m 118 in 9.8 ft Weight per rod 275 kg 606 lb 275 / 540 kg 606 / lb 540 kg lb 540 kg lb 678 kg lb BHA stabilizer / Drill collar data Standard flange diameter BHA stabiliser and drill collar 500 mm 20.0 in 700 mm 27.6 in mm 39.4 in mm 55.1 in mm 55.1 in Standard length BHA stabiliser and drill collar 1.5 m 59.0 in 4.9 ft 1.5 m 59.0 in 4.9 ft 1.5 m 59.0 in 4.9 ft 2.0 m 78.7 in 6.6 ft 2.0 m 78.7 in 6.6 ft Weight without lead filling (drill collar only) 700 kg lb 900 kg lb kg lb kg lb kg lb Weight with lead filling (drill collar only) kg lb kg lb kg lb kg lb kg lb Air compressor Delivered air volume m 3 / min ft 3 / min m 3 / min ft 3 / min m 3 / min ft 3 / min m 3 / min ft 3 / min 2 x 25 m 3 / min 2 x 882 ft 3 / min Operating pressure 13 bar 188 psi 13 bar 188 psi 17 bar 246 psi 20 bar 290 psi 20 bar 290 psi Back filling pump for airlift circulation system Delivery volume 800 m 3 / h 470 ft 3 / min 800 / m 3 / h 470 / 706 ft 3 / min m 3 / h 706 ft 3 / min m 3 / h 824 ft 3 / min > m 3 / h > ft 3 / min Pressure at delivery head (approximately) 5 bar 72 psi 5 bar 72 psi 5 bar 72 psi 5 bar 72 psi 5 bar 72 psi Specifications subject to change

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