Category Archives: ENSCO

ENSCO Orders Drillship with Retractable Thrusters!?

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By Rob Almeida On April 6, 2012

At first it looked like just another drillship order.

Samsung Heavy wins a $645 million order to build a DP3 drillship for ENSCO, however buried in the middle of the press release read:

New features on ENSCO DS-8 include retractable thrusters, enhanced safety and environmental features…

Wait…Retractable thrusters?!

I talked to ENSCO yesterday and they noted that this new feature was a Rolls-Royce design, and that by retracting the forward thrusters, it increased the efficiency of the vessel while in transit while also reducing the overall maintenance burden.

Most importantly however, this new feature will help to reduce down time.  At an average day rate of over a $500 thousand per day, any investment that can keep these rigs up and working longer is money well spent by the contractor and anyone who’s ever had to switch out a thruster knows that it’s not a snap of the fingers… it takes many costly hours and is, to be quite frank, a pain in the ass.

Besides having retractable thrusters, the ENSCO DS-8  has other unique features such as below-main-deck riser storage, triple fluid systems, offline conditioning capability and enhanced client and third-party facilities.

Storing upwards of 12,000 feet of 21″ heavy gauge steel riser on deck presents a significant vessel stability issue, not to mention all the associated drill pipe and casing.  Considering this rig may very well be destined for the arctic and the associated surface area of this pipe, this stability issue could be compounded significantly under ice-loading conditions.  Under these circumstances, storing the riser in a cargo hold below the main deck, is likely a smart move.

Consistent with the previous five Samsung ultra-deepwater drillships ordered since 2007, this new drillship is based on the proprietary Samsung GF12000 hull design measuring 755 feet in length and 125 feet in width. It will offer a payload in excess of 22,000 metric tons and a 1,250-ton hoisting system. The rig’s design and capabilities include numerous features that increase operating efficiency. Primary to these capabilities are enhanced and redundant offline tubular stand-building features and a 165-ton active heave compensating construction crane, allowing for the deployment of subsea production equipment without interference with ongoing drilling operations.

The rig, which will be initially outfitted for drilling in water depths of up to 10,000 feet, will be equipped with dynamic positioning in compliance with DPS-3 certification; six-5.5 megawatt thrusters for enhanced station-keeping; expanded drilling fluids capacity; a 15,000-psi subsea well control system with six rams, upgradable to seven rams and/or a second BOP stack; burner boom for well testing; and living quarters for up to 200 personnel.will be built to meet the demands of ultra-deepwater drilling in water depths of up to 12,000 feet and a total vertical drilling depth of 40,000 feet.

Ensco Chairman, President and CEO Dan Rabun said:

An ongoing trend of new deepwater oil and gas discoveries around the globe is creating a high demand for equipment capable of tapping those resources. Our track record of leading safety and deepwater performance increasingly makes us the driller of choice for operators working in complex offshore fields. Our high-grading strategy will ensure that we continue to be equipped to respond to rising customer demand.” The latest EnergyPoint industry survey rates Ensco first in total customer satisfaction among offshore drillers overall and specifically in safety, health and environment performance as well as in deepwater drilling.

This addition to our fleet is in keeping with our strategy of standardization, which streamlines construction, operations, inventory management, training, regulatory compliance, repairs and maintenance,” Mr. Rabun pointed out. “We are very pleased to continue our successful newbuild drillship program with Samsung.

This vessel will be the sixth Samsung DP3 drillship in the Ensco fleet, extending the benefits of Ensco’s fleet standardization strategy. The contract also includes options for two additional drillships of the same design and is scheduled for delivery in the third quarter of 2014.

Ensco’s three active DP3 drillships are currently contracted into 2016 in the U.S. Gulf of Mexico, Brazil and West Africa. A fourth, ENSCO DS-6, is undergoing pre-commissioning modifications in preparation for its first well assignment under a five-year contract with BP. ENSCO DS-7 is scheduled for delivery in the second half of 2013.

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Ensco in $645m drillship buy

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Bill Lehane ,
05 April 2012 14:06 GMT

New York-listed Ensco has ordered another ultra-deepwater drillship from Samsung Heavy Industries at an estimated cost of $645 million, just days after inking a long-term deal with BP for another rig in the series.

The Ensco DS-8 will be the sixth Samsung DP3 drillship in the offshore driller’s fleet when it arrives in the third quarter of 2014.

Ensco has also secured an option to acquire a further two of the vessels.

The fifth rig, Ensco DS-7, is currently being built in South Korea with delivery slated for the second half of this year.

On Monday, BP hired the fourth drillship, the Ensco DS-6, on a five-year deal that will ultimately garner Ensco $1 billion at a dayrate of around $522,000.

Ensco said the latest order came in response to “the high level of customer demand driven by an ongoing trend of successful offshore discoveries”.

Like the previous five ordered since 2007, the new drillship will be equipped for ultra-deepwater drilling in water depths of up to 10,000 feet, extendable to 12,000, and a total vertical drilling depth of 40,000 feet.

Ensco’s three active DP3 drillships are currently contracted into 2016 in the US Gulf of Mexico, Brazil and West Africa.

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UK: Ensco Ranks 1st Among Offshore Drillers by Costumer Satisfaction

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Ensco plc once again received the first place ranking for total customer satisfaction among offshore drillers in the 2011 Oilfield Products & Services Customer Satisfaction Survey. Conducted by EnergyPoint Research, the annual survey is the industry benchmark for customer satisfaction in the global oilfield.

Ensco led all offshore drilling contractors in the survey, also receiving top honors in 12 of 16 additional categories including health, safety and environment; job quality; performance and reliability; technology; special drilling applications; non-vertical wells and shelf wells. Ensco also earned the top ranking among deepwater drillers and the top ranking by independent operators, and was rated first internationally, with top scores in both offshore Latin America/Mexico and in the North Sea.

Ensco Chairman, President and Chief Executive Officer Dan Rabun stated, “Our people around the globe work safely to exceed customer expectations every day. This recognition is a testament to every Ensco employee’s commitment to that goal. When we operate safely and efficiently, we create success for everyone involved – customers, employees and shareholders.

“We realize that today’s drilling environment is more complex,” he added. “The technological challenges are higher, there is greater public scrutiny, and customers are counting on us more than ever to deliver operational excellence. In this environment, being recognized for success takes on even more meaning.”

EnergyPoint’s research showed a rise in overall customer satisfaction across all industry segments, with the largest increases in onshore and offshore drilling contractor scores.

The independent survey was conducted as part of EnergyPoint Research’s 2011 industry-wide Oilfield Products & Services Survey, comprising thousands of in-depth evaluations performed over a 24-month period by qualified professionals at domestic and international customers of oilfield suppliers.

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USA: Anadarko Contracts ENSCO 8506 Semi

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Ensco plc has entered into a contract for ENSCO 8506 semisubmersible drilling rig with Anadarko Petroleum Corporation. The initial contract term is for two and one-half years in the U.S. Gulf of Mexico at a day rate of $530,000, plus cost adjustments. The contract adds more than $480 million to revenue backlog.

Delivery of ENSCO 8506 from Keppel FELS Limited shipyard in Singapore is scheduled for third quarter 2012 followed by contract commencement in fourth quarter 2012 once mobilization, sea trials and acceptance testing have been completed.

Chairman, President and Chief Executive Officer Dan Rabun was pleased with the contract, “We are very pleased that Anadarko has chosen to contract a third ENSCO 8500 Series® rig for its drilling programs. Anadarko was an early advocate of the ENSCO 8500 Series® design and contracted ENSCO 8500 back in 2005.”

ENSCO 8500 commenced operations in 2009, and soon thereafter, drilled Anadarko’s major Lucius Discovery in the U.S. Gulf of Mexico. In October 2011, Anadarko contracted ENSCO 8505 as part of a rig sharing agreement with Apache and Noble Energy. ENSCO 8505 is scheduled to commence operations in the second quarter of this year.

Last of seven

ENSCO 8506 is the final of seven rigs in the ENSCO 8500 Series®. For the first three quarters of 2011, these rigs that have operated in Asia, North America and South America achieved 97% utilization. Ensco is ranked #1 in overall customer satisfaction and #1 in deepwater drilling by EnergyPoint, an independent survey firm.

The proprietary design of the ENSCO 8500 includes a 35,000’ nominal rated drilling depth, 2 million pounds of hoisting capacity, 8,000 tons of variable deck load and an open layout well suited for subsea completion activities. Improved visibility from the open deck configuration also enhances safety.

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USA: Anadarko, Apache and Noble Energy Hire ENSCO 8505 Rig

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Ensco plc announced today that it has entered into a shared drilling contract for ENSCO 8505 with Anadarko Petroleum Corporation, Apache Deepwater LLC and Noble Energy Inc. The initial contract term is for two years or two rotations per operator, whichever is longer, in the U.S. Gulf of Mexico at a day rate of $475,000, plus cost adjustments. The contract adds approximately $350 million to revenue backlog. Two one-year options are at mutually agreed rates.

“We are very pleased that Anadarko and Noble have chosen to contract a second ENSCO 8500 Series® rig for their drilling programs. Apache has been a long-term customer of our jackup fleet and we welcome the opportunity to expand our relationship with them in the ultra-deepwater market.”

Delivery of ENSCO 8505 from the Keppel FELS Limited shipyard in Singapore is scheduled for first quarter 2012 followed by contract commencement in second quarter 2012 once mobilization, sea trials and acceptance testing have been completed.

Chairman, President and Chief Executive Officer Dan Rabun commented, “We are very pleased that Anadarko and Noble have chosen to contract a second ENSCO 8500 Series® rig for their drilling programs. Apache has been a long-term customer of our jackup fleet and we welcome the opportunity to expand our relationship with them in the ultra-deepwater market.

“Our employees who have served these customers in the past are to be commended for delivering exceptional safety and operating performance – giving us the opportunity to earn a new, multi-year contract.”

ENSCO 8505 is the sixth of seven rigs in the ENSCO 8500 Series®. In second quarter 2011, these rigs that operate in South America, Asia and the U.S. Gulf of Mexico had virtually no downtime and achieved 99% utilization. Ensco is ranked #1 in overall customer satisfaction and #1 in deepwater drilling by EnergyPoint, an independent survey firm.

The proprietary design of the ENSCO 8500 Series® rigs was developed with extensive input from customers to address the drilling requirements for virtually every deepwater field around the world. The design includes a 35,000’ nominal rated drilling depth, two million pounds of hoisting capacity, 8,000 tons of variable deck load and an open layout well suited for subsea completion activities. Improved visibility from the open deck configuration also enhances safety.

The uniform design of the ENSCO 8500 Series® streamlines construction, operations, inventory management, training, regulatory compliance, repairs and maintenance. It also provides flexibility for customer specific enhancements; in particular, the 8500 Series may be modified to drill and complete wells in water depths up to 10,000’.

ENSCO 8506, the final rig in the ENSCO 8500 Series®, is currently under construction in Singapore with delivery scheduled for the second half of 2012.

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