Dcl hdd presentation 9 2-2014
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Digital Connection Co. Ltd. (DCL) was established in 2002 and has since become a leading provider of trenchless technology services in Saudi Arabia. DCL introduced the use of horizontal directional drilling (HDD) for pipeline crossings, which significantly reduced construction time. DCL has now completed over 100,000 meters of utility crossings using HDD, microtunneling, and ramming. Some of DCL's most notable projects include constructing the world's longest HDD crossing over 3,000 meters long.
Dcl hdd presentation 9 2-2014
- 2. Digital Connection Co. Ltd. (DCL) was created in 2002 by Mr. Abdullah Akbar Natheer, a Saudi Aramco retiree, who had spent his career in Outside Plant Construction (OSP). DCL undertook short form contracts in the beginning in the field of Telecommunication OSP. During the first long form contract awarded by Saudi Aramco (Microwave Replacement, BI 10-3988), DCL introduced the idea of converting all road and utility crossings from open cut method to Horizontal Directional Drilling (HDD). The proposal was implemented and execution time was reduced to 1/3 of the scheduled duration planned for the construction of road crossings. This was the start of a journey which has evolved into creation of the most comprehensive Trenchless Technology service provider in Saudi Arabia.
- 4. D C L T R E N C H L E S S P R O J E C T S I N S A U D I A R A B I A Khafji Tanajib Dammam Jubail Khobar Haradh Nuriyah Abqaiq Shaybah Yanbu Jubail HORRIZONTAL DIRECTIONAL DRILLING MICROTUNNELING RAMMING
- 5. DCL has completed more than 100,000 meters of utility crossings using various trenchless technologies, HDD, micro tunneling and pipe ramming. DCL has constructed pipeline crossings up to 48 inch dia pipes using HDD. DCL is credited with construction of world’s longest in length (3,045 meters) and largest in pipe dia (30 inch) crossing using HDD, at the time of execution back in 2008. DCL has the most successful record of construction of pipeline crossings under the sand dunes in Shaybah.
- 7. A PILOT HOLE is a smaller hole drilled into a material prior to a larger hole being drilled
- 8. The REAMING operation consists of using an appropriate tool to open the pilot hole to a slightly larger diameter
- 9. The PULLBACK operation involves pulling the entire pipeline length in one segment (usually) back through the drilling mud along the reamed-hole pathway.
- 11. R O A D C R O S S I N G A T H A R A D H / H AW I YA H Client:- ROBAYA (Aramco) Project length – 473Mtrs Pipe dia – 46” Pipe Material – Steel HDD Rig – 250ton Client:- ROBAYA(Aramco) Project length – 60Mtrs Pipe dia – 46” Pipe Material – Steel HDD Rig – 250ton
- 12. C O N S T R U C T I O N O F B E R R I C A U S E W A Y P I P E L I N E S 2 4 ” & 3 0 ” Between Abu Ali island and Berri Causeway Length 3,052 Meters (Each) Depth=37Meters Approximately Most challenging job in HDD industry These crossings are the longest in the world to-date 24” crude oil pipeline is completed 30” water injection pipeline completed BERRI CAUSEWAY PIPELINES PROJECT Horizontal Directional Drilling (HDD) Contract # 6600018809 30” ONGOING 24”COMPLETED ENTRY POINTS EXIT POINTS
- 13. Client:- SAS (Aramco) Project length – 1500Mtrs Pipe dia – 20” Pipe Material – Steel HDD Rig – 250ton Client:- SAS (Aramco) Project length – 2000Mtrs Pipe dia – 20” Pipe Material – Steel HDD Rig – 250ton S A N D U N E C R O S S I N G S I N S H A Y B A H
- 14. M I C R O T U N N E L I N G P I P E J A C K I N G Project :- Micro Tunneling Pipe Jacking at Water Injection Plant Tanajib Client :- JGC(Aramco), Project Length :- 100mtrs , Pipe Dia :-1600mm RCJ Project Location
- 15. R A M M E R W I T H H D D A S S I S T Project :- Highway Crossing by HDD & Ramming Assist 48” Steel Pipe – 85 Mtr@ NWC project Hail Project :- Tama Highway Crossing Yanbu 36” 60Mtr for SRB Rammer Product Pipe Pulling Assembly Drill String HDD Machine Typical Ramming With HDD Assist Puling Assembly
- 18. HDD Site Setup Pipe Being Pulled inside Borehole Pulling Assembly Side Boom Lifting the Pipe For Pull back
- 21. Launching Shaft Machine Entry Launching Seal MT Machine
- 24. Feeding via Rack & Pinion Trailer version, 11M feeding length (range 2 drill roads) 2,500kN pull force 9 torque 447kW Caterpillar engine - 6 Cylinder – Tropical version with expanded cooling system Noise reduction - Progressively torque regulation via potentiometer Electronic motor control with automatic switching off Load Sensing Control Output : 1.000 l/min 2.500Kn (250t) 6 pcs Poclain radial piston pump motors without gear reducer 8-15º with stable and comfortable support Torque : 90.000Nm -35 rpm45.000Nm -70 rpm Dynamic axial trust load :3.200kN (320t) Static axial thrust load :4.500kN(450t) Drive Shaft slidable for 70mm