Directionally Drilled Bores For Remote Cable Landings

reportActive / Technical Report | Accession Number: ADA508102 | Open PDF

Abstract:

A cable shore landing protection system was needed at Southwest Bay, Ascension Island, to protect future cables coming ashore. Three subsurface conduits were installed from the shore out under the seafloor, using a lightweight horizontal drill rig. These three Directionally Drilled Boreholes range from 500 to 800 feet in length, and exit the seafloor at water depths of 35 feet or greater. These boreholes were installed in late August and early September of 2002. This effort took 13 days on site to accomplish.

Author(s):
Sinclair, N. A. ; Thompson, H. G. ; Black, S. A. ; Roberts, R.
Author Organization(s):
NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA
Descriptive Note:
Conference paper
Supplementary Note:
See also ADM002146. Presented at the Oceans 2003 MTS/IEEE Conference held in San Diego, California on 22-26 September 2003. Published in the Proceedings of the Oceans 2003 MTS/IEEE Conference, p50-54, 2003. U.S. Government or Federal Purpose Rights License. The original document contains color images.
Pagination:
0006

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
XD
 Subject Terms
Joint Capability Areas:
JCA_6.1.1_Wired Transmission; JCA_6_Net Centric; JCA_6.1.2_Wireless Transmission; JCA_6.1_Information Transport; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_6.4.1_Secure Information Exchange; JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.1_Deployment and Distribution; JCA_6.4_Information Assurance; JCA_4_Logistics; JCA_4.6_Engineering; JCA_8_Building Partnerships
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*OCEAN BOTTOM, *DRILLING MACHINES, *ASCENSION ISLAND, *BOREHOLES, *UNDERWATER CABLES, SUBSURFACE, BORES, DRILLING, CONDUITS, HORIZONTAL ORIENTATION, LIGHTWEIGHT, DEPTH, WATER, REPRINTS, SYMPOSIA
Field(s)/Group(s):
Submarine Engineering, Pumps, Filters, Pipes, Tubing, Fittings and Valves, Physical and Dynamic Oceanography, Electric Power Production and Distribution
Keyword(s):
*HDAS(HYDROACOUSTIC DATA ACQUISITION SYSTEM), *DDB(DIRECTIONALLY DRILLED BORES), SPLIT PIPES
Report Date:
2003 Sep 01
Creation Date:
2009 Nov 10