CATEGORIZED | News, The Offshore Frontier

MPD system facilitates top-hole drilling offshore Brazil

Posted on 31 January 2012

AGR’s EC-Drill allows the drilling fluid level in the conductor to be actively adjusted so bottomhole pressure can be accurately manipulated.

AGR has completed its first Brazilian operation using the EC-Drill system, a managed pressure drilling (MPD) technology based on the RMR system and modified for Petrobras jackup operations. The technology application on two Brazilian wells in the Rio Grande do Norte region was the first time that AGR has provided dual gradient drilling (DGD) services to Petrobras.

EC-Drill allows operators to actively adjust the drilling fluid level in the conductor, allowing accurate manipulation of bottomhole pressure for more effective drilling.

For Petrobras, the system significantly improved drilling of the top-hole sections on the two wells. All mud and cuttings were returned to the rig without discharge to the sea, minimizing the environmental footprint, and bottomhole pressure was manipulated to compensate for ECD. The amount of drilling fluid lost to the formation was also minimized while running and cementing the surface casing.

Petrobras contract manager José Fernandes said, “The AGR system effectively helped in controlling the pressure inside the well, reflecting positively on combating the fluid losses and reducing operational costs.”

Terry Scanlon, senior vice president AGR Americas, said, “We are pleased to report that Petrobras is now experiencing the enhanced drilling results that we committed to deliver with our environmental and DGD capabilities. Petrobras has been an excellent partner in this program, and we are continuing with them to fine-tune system capabilities for further wells offshore Brazil in the near future.”

The Rio Grande do Norte wells were the first two projects following a series of two-year services contracts signed between AGR and Petrobras in 2010.

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 17 December 2014

    Saudi Aramco: Four factors for a sustainable drilling business

    Despite the modest growth in demand and drop in oil prices today, the long-term outlook for industry is healthy. “Our industry will need to add around 40 million bbl per day for new capacity...

  • 16 December 2014

    Ensco development program produces driller in 3 years

    Ensco’s Accelerated Development Program (ADP) takes a “green” individual and, within a three-year period, trains them to become a driller. In response to personnel shortages in various areas, including drilling...

  • 16 December 2014

    Saudi Aramco: ‘Industry cannot afford to lose talent when the economy is down’

    Industry is facing a human resources challenge in two areas: the ageing workforce and the shortage of skills, Mohammed Al Sellemi...

  • 16 December 2014

    Nanotechnology has potential to improve tool performance in extreme environments

    In terms of temperature stability and corrosion, tools have limitations, especially in extremely challenging drilling environments. Jothibasu Ramasamy...

  • 16 December 2014

    Colville: WCI provides forum to evaluate practical, economical advances in well control practices

    Major players throughout industry are joining forces under the Well Control Institute (WCI). The mandate of WCI is “to provide the definitive forum...

  • Read more news