Wednesday, July 3, 2013

Petrobras sets new pre-salt production record

On 18 May, Petrobras set a new pre-salt production record, with output of 322,100 barrels of oil per day (bpd), 11,000 bpd up on the previous record of 311,500 bpd, set on 17 April.

In addition to encouraging figures for pre-salt production, the company also achieved record output in EspĂ­rito Santo, with a monthly average figure of 322,700 bpd, surpassing the previous record set in December 2011.

During May, the production of oil and LNG for all Petrobras fields in Brazil averaged 1.892 million bpd, 1.7% down on the April figure (1.924 million barrels). Including the share operated by Petrobras for partner companies, exclusive oil output in Brazil was 1.942 million bpd. This drop was partly offset by the increasing contribution from pre-salt areas to consolidated output results.

In May, total output of oil and natural gas from domestic fields was 2.267 million barrels of oil equivalent per day (boed), 2.1% down on the previous month. Including the share operated by Petrobras for partner companies, total output was 2.359 million boed.

Added to the company’s output abroad, Petrobras’ total oil and natural gas output in May averaged 2.500 million boed, 2% down on the April figure. The drop in output was due to scheduled maintenance shutdowns on platforms P-25 and P-31, in the Campos Basin’s Albacora field, and on FPSO Cidade de Angra dos Reis, operating in the Campos Basin’s Lula field pilot project.


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Tuesday, July 2, 2013

Baker Hughes drilling fluid system optimizes circulating pressures

Posted on 02 July 2013

Caption: The Baker Hughes MPRESS drilling fluid system was developed and tested using a rigorous quality assurance program at the Baker Hughes fluids labs in Houston. The Baker Hughes MPRESS drilling fluid system was developed and tested using a rigorous quality assurance program at the Baker Hughes fluids labs in Houston.

Baker Hughes’ recently commercialized the MPRESS drilling fluid system, which enables operators to manage circulating pressure more efficiently by reducing stand pipe pressure and applying more horsepower to the bottomhole assembly and drill bit.

The shear-thinning rheological profile of the MPRESS system has a “rapid-set/easy-break” gel structure that minimizes the cuttings in the vertical section of the wellbore from settling into the curve during connections and trips. It also has elevated ultra-low-shear-rate viscosity (ULSRV) that minimizes the likelihood of the cuttings in the lateral section from agglomerating on the bottom of the wellbore “gluing down” during connections. Both the rapid-set gels and elevated ULSRV help keep the wellbore clean and minimize torque and drag associated with cuttings beds in the lateral section. In addition, the gels within the MPRESS system have the ability to break easily, reducing surge pressure when tripping in the hole so mud losses are reduced.

The MPRESS system  reduces viscosity in the drillstring, while optimizing viscosity in the annulus for more efficient cuttings transport. The pressure saved in the drillstring can be used to increase flow rate, provide more power to motors and bits, and save wear and tear on surface equipment. In combination with other Baker Hughes technologies, such as the Autotrak Curve rotary steerable system and Talon high-efficiency PDC bits, the pressure profile of the MPRESS system enables efficient drilling of challenging lateral sections in unconventional reservoirs.

MPRESS, Autotrak and Talon are a trademarks of Baker Hughes.


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Monday, July 1, 2013

Deloitte and NASA bring space-age risk management to oil and gas industry

In a move designed to bring advanced risk-management capabilities to America’s energy industry, the Deloitte Center for Energy Solutions and the NASA Johnson Space Center have entered into a strategic alliance to offer services, such as operational risk-management, to oil and gas companies.

“Activities like deepwater drilling, undersea production and pipeline operations all face the same kind of ‘black swan’ events that pose a threat to space exploration,” said David Traylor, a principal at Deloitte & Touche LLP.  “Ultimately, proactively identifying and mitigating low-probability yet high-impact events can save lives, resources, money, reputation and environmental disruption.”

Deloitte and NASA will jointly offer a range of services in the quickly evolving risk-sciences arena, such as risk modeling and simulation, to help oil and gas companies eliminate blind spots in their decision making. Such services apply sophisticated risk-modeling and simulation tools and techniques, like Bayesian networks and agent-based modeling to reduce uncertainties in engineering and operations at oil and gas companies – in much the same way NASA has done with its space program.

As part of NASA’s 135th and final space shuttle mission, for example, it used risk-modeling and simulation techniques to evaluate the potential risk scenarios of using a Soyuz spacecraft to rescue a stranded crew from the International Space Station – with no backup shuttle capability. This process identified risks linked with the Russian vehicle and helped drive a decision to extend crew time on the space station.

“NASA is a leader in applying risk strategy to highly complex systems that operate in extremely demanding environments, while Deloitte is a leader in providing valuable professional services to oil and gas companies,” said veteran astronaut William “Bill” McArthur Jr., director of Safety and Mission Assurance at the Johnson Space Center. “Energy companies facing catastrophic consequences from low probability risks will now have a range of tools and techniques to minimize the probability of these risks and improve their overall safety culture.”

Deloitte and NASA also expect that oil and gas companies will find Deloitte’s risk-sensing services valuable in emerging risk identification – a set of complex tools and techniques, like precursor analysis and event-occurrence trending, to highlight changes in risk likelihood.

NASA used these techniques when it was having problems with the space shuttle’s attitude-control thrusters, which could limit the ability to control the position of the shuttle while in orbit. Because the thrusters could not be tested on the ground, precursor analysis was used to determine leading indicators and surrounding events preceding thruster usage – allowing the space agency to resolve the problems before future missions.

Deloitte and NASA’s offerings will also include what Mr Traylor calls “dynamically improving risk-management techniques,” such as artificial-intelligence tools applied to remote decision-support systems.

In addition, Deloitte and NASA will offer services aimed at helping oil and gas companies measure and monitor the effectiveness of their risk culture among their employees and contractors – enabling them to detect whether their work environments and processes are increasing the likelihood of a risk occurring.


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