InterMoor, an Acteon company, has successfully completed a contract with Cross Group, Inc. that included the provision of heave-compensation services for the installation of a Cross 7.0 workover riser package (WRP).
An InterMoor compensated anchor-handler subsea installation method (CASIM) unit played a key role in deploying and recovering the WRP.
“The CASIM system enabled us to provide effective heave compensation and to recover the delicate WRP on a vessel without an active heave-compensated crane or stern roller,” said InterMoor vice president of business development David Cobb. “That was the only way to achieve the WRP installation from this vessel. The success of this project underlines the value of the CASIM system as a cost- and time-effective solution, and explains why more and more subsea contractors and operators are choosing it to facilitate the installation of workover packages.”
Each standard CASIM unit has a maximum stroke of 3 meters and can accommodate loads up to 50 tons.
The heave compensation operation was in water depths of about 140 meters and used Cal Dive’s Uncle John DP saturation diving vessel to install the 29-ton WRP. The project took place at East Cameron well 378#3, offshore Louisiana, USA. The Cross Group is conducting a plugging and abandonment (P&A) program in the field for EPL Oil & Gas, Inc.
This project demonstrates how InterMoor can provide cost-effective solutions for the installation of subsea workover equipment using vessels of opportunity. Operators trust InterMoor to be part of their P&A campaigns and to help them meet BOEMRE NTL No. 2010-G05 requirements for timely decommissioning of idle infrastructure on active leases.
Dragon Oil plc, an international oil and gas exploration, development and production company, today publishes the results of successful completion and initial testing for the Dzheitune (Lam) A/176 development well.
The Dzheitune (Lam) A/176 well was completed as a single producer to a depth of 1,786 metres. The well tested at an initial production rate of 1,462 barrels of oil per day; deeper sections will be targeted when this well is deepened in the future. The jack-up rig has moved to the next slot and is currently drilling the Dzheitune (Lam) A/177 development well.
InterMoor, an Acteon company, has completed installation of the drilling and production conductors for the Papa Terra project, announced Global President Tom Fulton. Petrobras serves as the operator of the Papa Terra concession with a 62.5 percent interest; Chevron holds the remaining 37.5 percent interest.
InterMoor was responsible for the design, procurement, fabrication and installation of 15 conductors for the project. Fabricated at InterMoor’s 24-acre, Morgan City, La., facility, the conductors are 36 inches (91 centimeters) in diameter and 187 feet (57 meters) long.
InterMoor chartered the Skandi Skolten, DOF Subsea’s Construction Anchor Handling Vessel, and the installation barge with a customized conductor launch system. For conductor driving, InterMoor used MENCK’s MHU-270T DWS which included a deepwater hydraulic hammer capable of providing a driving energy of 270 kilojoules at a water depth of 3,281 feet (1000 meters) combined with MENCK’s girdle-type electro-hydraulic power pack and umbilical support system. Generating hydraulic power at depth, rather than at the surface, means no hydraulic hose, therefore minimalizing environmental impact and energy loss.
The conductors were installed in water depths of 3,937 feet (1,200 meters) in the southern Campos Basin off the coast of Brazil. The installation took place in April 2012. InterMoor’s conductor services optimize conductor design to meet project-specific load and fatigue requirements, and the unique patented installation method allows installation without the need of a construction vessel. A standard Anchor Handling Vessel is sufficient, leading to a more economical installation off the rig’s critical path.
“We are proud to have successfully completed this important installation for Petrobras and to be part of the first offshore tension-leg, wellhead platform in Brazil,” said Fulton. “Our collaboration with sister company MENCK proved to be an effective partnership, and InterMoor remains the only company worldwide to offer a full conductor installation service in deep water.”
“InterMoor has been developing its strength in the Brazil market through our office in Rio de Janeiro, and this project completion confirms the breadth of our capabilities in the region,” added John Riggs, Managing Director for InterMoor do Brasil.
- Papa Terra Project Faces Delay (Brazil) (worldmaritimenews.com)
- Brazil: Petrobras Finishes Deck Mating Operation for P-55 Platform (worldmaritimenews.com)
- Petrobras Hurt by Transocean Rig Loss in Brazilian Court – Bloomberg (bloomberg.com)
- Aker Solutions to Deliver Drilling Packages (Brazil) (worldmaritimenews.com)
Wright’s Well Control Services (WWCS) completed a riserless subsea plug & abandonment (P&A) using tubing to pull out of the hole from a Multi-Service Vessel (MSV) in 1,250’ WD in the Gulf of Mexico. DOF Subsea USA provided marine and subsea services. New tools where custom engineered specifically for this project and successfully deployed.
One of the initial challenges addressed by the WWCS team was the one-of-a-kind tree found at the site with an annulus monitoring valve at a 35° angle. After finding no Remotely Operated Vehicle (ROV) tooling on the market offering the ability to nipple down and up on a subsea flange, WWCS designed and built a new torque tool. The new tool unbolted the flange and bolted in a new flange with a 2” hot stab.
The next step was to design and build a hydraulic connector that would allow WWCS to pull away from a section that might have issues while leaving a modified Tree Running Tool (TRT) subsea. This connector was designed to engage and disengage a subsea Blowout Preventer (BOP) and lubricator for additional barriers as needed without time consuming trips to the surface to add and remove the TRT.
WWCS also modified a Tubing Hanger Pulling Tool (THPT) to pull tubing with a crane subsea. The tubing was removed with a bull string on the deck of the MSV with a ROV for guidance as the segments where pulled out one at a time. One of the MSV’s moonpools was used to run the coil string and the umbilical while tubing and casing were pulled from a secondary moonpool.
Steps in the plug & abandonment procedure included: setting six (6) 16.4 ppg Class H neat cement plugs, setting three (3) Cast Iron Bridge Plugs (CIBP), cutting and pulling 37 joints of 3½” tubing, cutting and pulling 750′ of 9⅝” casing, cutting and pulling 13⅜” casing, cutting and pulling 20″ x 30″ casing with a mechanical cutter below mudline (bml), flushing a 6″ pipeline of 3890 barrels (bbls) of fluid with a modified 4” connector, recovering the umbilical tension assembly (UTA) and pipeline end manifold (PLEM), and setting a modified plumbers plug and submar mats on the lines.
“This project was a great success for everyone involved at Wright’s Well Control Services,” said WWCS president David Wright. “In 30 days we successfully executed a very challenging subsea P&A utilizing four new subsea tools including a jumper to flush the pipeline that we designed and built while on location. I’m proud of our crew and support staff. The techniques and tools deployed on this job may change how subsea P&As are conducted going forward.”
“It was great to work with WWCS on this innovative subsea P&A project,” said Brent Boyce, vice president of operations at DOF Subsea USA. “The new tooling designed to flange and re-flange the subsea annulus monitoring system interfaced perfectly with our ROVs. We were able to remove and reinstall the device even at 35 to 45° angle.”
Wright’s Well Control Services offers comprehensive surface and subsea offshore services for clients in the Gulf of Mexico. Wright’s specializes in cost effective rigless applications including patent-pending hydrate remediation, subsea BOP and plug & abandonment technologies. WWCS was founded in 2006 by David Wright who has 25 years of offshore and onshore engineering experience including work at Halliburton, The Red Adair Company and ATP. Wright’s is a privately held company employing 75 people with corporate offices in Humble (Houston), Texas and an operations facility is Lake Charles, Louisiana.
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ConocoPhillips announced that it has completed the spinoff of its downstream businesses to its stockholders. With the completion of this transaction, ConocoPhillips is the world’s largest independent exploration and production (E&P) company, based on proved reserves and production of liquids and natural gas.
“ConocoPhillips will truly be unique as an independent E&P company. Our unmatched size, scope and capability position us to compete successfully in this business,” said Ryan Lance, chairman and chief executive officer. “With an exclusive focus on exploration and production, we will pursue opportunities and take actions to create value for all our stakeholders. We will emphasize execution and operations excellence, the principles that made us what we are today and that will shape the ConocoPhillips of tomorrow.”
ConocoPhillips benefits from more than a century of experience and success achieved by its predecessor companies. The company has a presence and capability in key technology-driven resource opportunities globally. Among these are conventional and unconventional reservoirs, oil sands and heavy-oil deposits, liquefied natural gas, and deepwater and Arctic operations.
“As we move forward with today’s strong base, our vision is to pioneer a new standard of E&P excellence,” Lance said. “ConocoPhillips has always placed safety, health and environmental stewardship first, and this will not change. In addition, we have an unprecedented opportunity to unlock potential by combining the legacy of our world-class workforce, asset base, technical capability and financial capacity with the focus and culture of an independent company. We believe this will allow us to create value for all our stakeholders and deliver a compelling formula of profitable growth, strong financial returns and a sector-leading dividend.”
To effect the spinoff, ConocoPhillips stockholders received one share of Phillips 66 common stock for every two shares of ConocoPhillips common stock held on the record date of April 16, 2012. Phillips 66 is now an independent, publicly traded company in which ConocoPhillips retains no ownership interest.