Projects

Facility Decommissioning and Pigging Support Services

Project Date: Present

Summary

Located within California’s Central Coast region, an oil heating facility connecting to three offshore OCS platforms required decommissioning. An experienced crew managed various elements of the project, all while supporting all pigging and nitrogen purging operations.

Scope

Hydra Offshore Construction supported the decommissioning of an onshore oil heating facility with a capacity to handle 30,000 barrels per day (BPD) of stabilized, dry, sweet crude oil. This facility connected to three offshore OCS (outer continental shelf) platforms via a 28-mile 24” OD (outer diameter) pipeline. Hydra Offshore Construction was responsible for the isolation, clean out, and flush & purge of the main process equipment, including vessels, tanks, piping, LACT systems, and other related equipment. Additionally, Hydra Offshore Construction supported all pigging and nitrogen purging operations with 24/7 coverage to clean out the main pipeline and take it out of service.

Challenges

This location demanded that special precautions be taken due to hazardous environmental factors caused by lower explosive limit (LEL) gases, naturally occurring radioactive material (NORM) and hydrogen sulfide (H2S) gas releases.

Why Hydra?

The project required an experienced crew to systematically provide a custom solution for each subsystem. Hydra’s expertise enabled the safe and efficient completion of the project with zero lost-time incidents and environmental discharges spanning over five months of rigorous, non-stop work. Additionally, the pigging operations required the Hydra crew to perform SIMOPS (simultaneous operations) both onshore and offshore, which required careful planning and coordination internally and with all stakeholders.

Location

Region: Central Coast California
General Project Location: Goleta, California
Facility Type: Oil Heating Facility

Details

Services Provided: Tank and Vessel Cleaning, Piping Isolations, Pigging Operations and Decommissioning
Duration of Project: 160 Days
Total Manhours: 28,240
Crew Size: 15
Crew Disciplines: Project Manager, Superintendent, Foreman, Technicians, and admin support (HSEQ, Logistics and Accounting)
Completed on Time: Yes
Completed within Budget: Yes

Projects

As a premier topside construction, subsea engineering and project management company, Hydra provides subsea solutions and offshore construction services to domestic and international oil and gas industry clients.

Oil Heating Facility Flush & Purge Operation

An onshore oil heating facility that processes crude and natural gas required decommissioning. The company awarded Hydra Offshore Construction the project in order to remove contaminants from all vessels and piping.

BOP Recovery for International Drilling Contractor

A subsea blowout preventer (BOP) for a privately held oil and gas E&P company unexpectedly detached, damaging a subsea tree in 3,000 ft water depth. The BOP was 70% buried in the seabed, limiting access to feasible lift points.