PROJECTS

Shallow Water Projects

Enterprise
Hurricane Gustav and Ike Repairs Project
Gulf of Mexico
CTI provided project management and engineering expertise to Enterprise for their fast-track pipeline and facilities repair projects. Tasks performed by CTI personnel included detailed engineering, management of the procurement of key project materials, management of pre-mobilization project engineering and planning activities, offshore construction management and support, and onshore and offshore inspection services. Key repair projects included the following:
  • HIOS 42" Pipeline Repair Project

    This subsea pipeline repair project entailed an initial damage assessment and the development of both detailed repair plans and project cost estimates. The offshore activities included salvage of the damaged pipe, procurement of permanent materials (pipe, connectors, concrete mats, etc), fabrication of pipeline components, and installation of the replacement 42" OD spool pieces in 125 fsw, buried five (5) feet below natural bottom. The pipeline dewatering process required 3-phase separation and water filtration equipment mobilized onto a lift boat at the downstream platform. The pipeline was put back into service three and a half months after the pipeline was damaged.
  • Medusa 12" Riser and Pipeline Repair Project

    This subsea riser and pipeline repair project entailed the salvage and replacement of damaged 12" riser and pipeline sections from the (+) 10-ft elevation to natural bottom at (-) 260-ft. Engineering and drafting services provided by CTI included pipeline lowering analysis and simulation utilizing ORCAFLEX©, and the preparation of all pipeline and riser replacement drawings. The pipeline was put back into service two months after the riser and pipeline was damaged.
  • Eugene Island 371 Anaconda By-Pass Project

    This subsea pipeline repair project consisted of connecting a 20" pipeline directly into a 16" pipeline which were both damaged at the location of a toppled offshore gathering platform. The reconnection of the two (2) damaged pipelines occurred approximately 1,000 feet away from the toppled platform in 430 fsw. Offshore pipeline repair activities included the pigging and isolation of the two (2) existing pipelines, procurement (pipe, connectors, concrete mats, etc), fabrication of pipeline components, and installation of six (6) 20" and 16" spool pieces, two (2) tie-in assemblies, and one (1) pipeline crossing. CTI designed the reconnection spool, crossings, and a specialized pig launcher/receiver specifically for this project.
  • Eugene Island 361 8" Riser Repair Project

    This subsea riser and topside piping repair project entailed an initial damage assessment, and the development of both detailed repair plans and project cost estimates. The offshore activities included salvage of the damaged riser section, procurement of permanent materials (pipe, connectors, clamps, etc), fabrication of pipeline components, and installation of the replacement 8" riser section from the (+) 12-ft elevation to (-) 40-ft elevation. The repair project also included the topside inspection of the topside piping and replacement of some topside piping and clamps.
  • SMI 205 Platform Repair Project

    This platform repair project entailed an initial damage assessment, and the development of both detailed repair plans and project cost estimates. The offshore activities included salvage of the damaged equipment, piping, skids, and the procurement, fabrication and installation of permanent platform materials. The repairs included the following:
  • Structural
  • Piping & Coating
  • Equipment Skids
  • Sump Tank
  • Instrumentation
  • Electrical
  • Master/Pipeline Safety Control
  • Replacement of 20" Shut Down Valve (SDV)
  • Boat Landing and (+) 15’ Handrails
  • Before Repair
    After Repairs
  • MMS Pipeline Side-Scan Sonar Surveys

    This project included managing all pipeline surveys required by the MMS after Hurricane Gustav and Hurricane Ike. A total of twenty four (24) pipelines (over 800 total miles) were surveyed, tracked, and charted by CTI engineering and construction management personnel for MMS reporting.