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List of references
Total records:  434 
Year  Country  Client   Project  

Length
[m]
 

Bore-
hole [mm]
 

2011  Germany  Friedrich Duensing GmbH
Kleeblattstrasse 2
31535 Neustadt Ortsteil Eilvese 

Cable protection bundle, 2 x Da 125; 2 x Da 110; 3 x Da 63 SDR 11 

130 

450 

2011  United Kingdom  Southern Gas Networks plc
St. Lawrence House
Station Approach
Horley
Surrey RH6 9HJ 

Solent Gas Transits Gas Pipeline, Phase 2 - The drilling of a 3,926 m long x 20" diameter pilot holes, each drilled with a rig at either end of the crossing and requiring an intercept approx. 50m below the seabed. Scope of work included the preparation of the strings of 324 x 12.7mm steel gas pipes. Each pullback required stops for 2 no. intermediate welds. Ground conditions were very stiff clays and very dense sands. 

3926 

508 

2011  Germany  TenneT Offshore GmbH
Bernecker Strasse 70
95448 Bayreuth 

Connection of windpark SylWin I to German national grid (NOK, Nord-Ostsee-Kanal), 2 crossings
 

620 

550 

2011  Germany  TenneT Offshore GmbH
Bernecker Strasse 70
95448 Bayreuth 

Connection of windpark HelWin I to German national grid (NOK, Nord-Ostsee-Kanal), 2 crossings
 

620 

550 

2011  Germany  TenneT Offshore GmbH
Bernecker Strasse 70
95448 Bayreuth 

Connection of windpark HelWin II to German national grid (NOK, Nord-Ostsee-Kanal), 2 crossings 

620 

550 

2011  Italy  Client: Snam Rete Gas - Piazza S. Barbara, 7 - 20097 S. DONATO MILANESE (MI), Italy
Main Contractor: SAIPEM - Via Toniolo, 1 - 61032 FANO (PU), Italy 

1 of 3 crossings
1 x DN 1200 (48") gas pipes
1 x DN 250 (10") cable ducts 

440 

1200 

2011  Italy  Client: Snam Rete Gas - Piazza S. Barbara, 7 - 20097 S. DONATO MILANESE (MI), Italy
Main Contractor: SAIPEM - Via Toniolo, 1 - 61032 FANO (PU), Italy 

1 of 3 crossings
1 x DN 1200 (48") gas pipes
1 x DN 250 (10") cable ducts 

440 

250 

2011  United Kingdom  Rayden Engineering Limited
Wentworth House
Wentworth Street
Ilkeston, Derbyshire DE7 5TF 

HDD through very stiff clay and limestone for gas pipeline below river valley 

480 

850 

2011  Germany  TenneT TSO GmbH
Bernecker Strasse 70
95448 Bayreuth 

DolWin1, Oase, HDD1
HDD landfall for offshore wind park 

550 

584 

2011  Germany  TenneT TSO GmbH
Bernecker Strasse 70
95448 Bayreuth 

DolWin1, Oase, HDD2
HDD landfall for offshore wind park 

550 

584 

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