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Drilling & Completion News

The Atwood Achiever has received a one-year contract extension and rate adjustment from Kosmos Energy to drill in northwest Africa. Under the agreement, the dayrate has been adjusted to $495,500.

Atwood Oceanics has agreed to a one-year extension and rate adjustment to its existing contract with Kosmos Energy Ventures for the Atwood Achiever. The ultra-deepwater drillship commenced its three-year drilling services contract with Kosmos on 12 November 2014 for operations offshore northwest Africa. The agreement adjusts the operating dayrate to approximately $495,500, net of taxes, and extends the contract end date to 12 November 2018. As part of the agreement, Kosmos has an option that may be exercised at any time through 1 October 2016 to revert the contract to the original operating dayrate and original end date. Exercising this option will result in a payment that includes the difference in dayrates, taxes and an administrative fee covering the time periods for which the reduced day rate was invoiced.

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Drilling & Completion Tech Digest

Wood Group is leading five new joint industry projects that will run from 2015-2018. One is a collaboration with six operators in Australia aimed at reducing subsea equipment failures through knowledge sharing, and another is targeted at developing a consistent framework for assessing the competency of subsea engineering personnel and providing standardization across companies and regions.

Halliburton’s Completion Tools business line has achieved the first installation of the SmartPlex downhole control system in a six-zone multilateral well. The installation was a joint effort across functional teams within the Intelligent Completions group and was the first electro-hydraulic (EH) system installed by Halliburton in the Middle East. The installation was completed with zero nonproductive time and no HSE issues.

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As industry seeks cheaper ways to boost production, horizontal refractures gain prominence

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The convergence of reduced operator CAPEX, advances in fracturing technologies and know-how, and diminishing production from vintage shale wells is shining a spotlight on well refracs. Particularly with lower oil prices rendering some new drilling projects uneconomical, operators are increasingly looking to refracturing as a low-cost method of boosting production. “It’s a perfect storm,” said Tim Leshchyshyn, FracKnowledge President and Completions Advisor for Korean National Oil Company. “It is not going to be as good as when we were drilling all those (new) wells each year, but it is an area of great potential.”

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Dayrates are down, but rig count remains steady in Middle East

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While a downward trend in activity and rig count has been observed around the world in response to the oil price slump, the Middle East appears to be bucking this trend. According to numbers from Baker Hughes, the Middle East’s rig count has averaged 404 to date in 2015. That’s nearly the same as the region’s average rig count of 406 in 2014 and up from an average of 372 rigs in 2013.

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Raising the sand bar

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In virtually every well worldwide, operators have to contend with some degree of sand production, a phenomenon that more often than not leads to erosion, sand accumulation, plugging, formation collapse and contamination. These issues have serious financial, safety and environmental implications for operators, often resulting in clean-outs, reduced flow rates and production, and unplanned shutdowns.

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In September, the US House Committee on Natural Resources hosted a field hearing in New Orleans. IADC attended the meeting, “The Impacts of Federal Policies on Energy Production and Economic Growth in the Gulf,” and later submitted comments to the record which outlined changes to existing law that could help spur safer energy production in the US.

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HSE&T Corner: Learning from the fast lane: Formula One improves safety by putting it second to none

Fatalities over two consecutive days in 1994 changed Formula One forever. The fatalities – including the death of famed Brazilian driver Ayrton Senna – became a moment of clarity for F1. Immediately following those incidents, F1 and its regulator established the Safety Working Group, and it was decided to innovate F1 to zero fatalities, Mark Gallagher said at the 2015 IADC Drilling HSE&T Europe Conference on 24 September. Mr Gallagher is the author of “The Business of Winning: Strategic Success from the Formula One Track to the Boardroom.”

Auto racing is an inherently risky activity, and for the first 45 years of Formula One (F1), that risk was reflected strongly and plainly in the number of fatalities that occurred: 43 driver deaths from 1950 to 1994. Then, on 1 May 1994, everything changed, said Mark Gallagher, author of “The Business of Winning: Strategic Success from the Formula One Track to the Boardroom.”

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Taking holistic approach to designing cement sheaths helps maintain zonal isolation for life of well, increases ROI

Figure 1: Designing an efficient cement sheath requires a holistic view of cement mechanical integrity modeling. Cement design engineers must not only engage the drilling and completion engineers but also include insight from production, reservoir and formation evaluation engineers. These engagements enable the engineer to develop a holistic view of the anticipated changes in wellbore and reservoir stresses during its life.

More than ever, financial institutions are requiring increased returns on their investments. Oil and gas producers are seeking larger reservoirs with higher delivery rates. Many of these new reservoirs are in areas that present unique technical and operational challenges, such as ultra-deepwater, high pressure and/or high temperature, extreme extended reach, brownfield redevelopments, etc. The cost for finding and harvesting oil and gas reservoirs is increasing, which also affects shareholder value.

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