CATEGORIZED | News

Through-tubing rotary drilling a success on StatoilHydro's Asgard field

Posted on 15 September 2009

 A new technology called through tubing rotary drilling (TTRD) is helping StatoilHydro to improve oil recovery from subsea fields, the company said. Now successfully tested on the Åsgard field in the Norwegian Sea, the technology has proven to enable the drilling of new sidetracks through existing tubing on subsea fields. This simplifies and reduces the costs to reuse old wells. Øystein Arvid Håland, head of subsurface technology in StatoilHydro, said the technology has been under development with FMC Technologies for four to five years. He estimates that drilling operation from the Åsgard field alone will produce extra oil worth around NOK 1.4 billion.

 Source: FMC Technologies. The TTRD equipment is connected to a subsea installation on the seabed.

“The new concept will highly improve the efficiency of this type of operations in connection with subsea well operations, and enables us to produce oil that we would normally not have recovered,” Mr Håland said.

A conventional rig was used on Åsgard for the test, but the company expects the technology to bring even better results when used on a purpose-built rig.

“In the autumn we plan to invite bids for a rig to be tailored to such operations, and the aim is to get the new rig into place in 2012-2013,” Mr Håland said.

The rig will contain only the equipment needed for this type of operation and will be a brand-new type of rig.

Today, more than 40% of StatoilHydro’s oil and gas production comes from some 500 wells on subsea fields. This new technology may be used in waters down to 500 m. The goal is to reach even deeper.

“In the future we wish to utilise this technology in deep waters, for example in the Gulf of Mexico,” Mr Håland said.

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 30 July 2014

    Fugro’s DeepData pod provides data for deepwater riser monitoring

    Fugro has delivered a motion dataset from the BOP stack and lower riser of two deepwater wells in the Barents Sea using its DeepData pods. The DeepData pods...

  • 28 July 2014

    SDI completes 500th MagTraC MWD Ranging project

    Scientific Drilling International (SDI) has completed the 500th MagTraC MWD Ranging project. MagTraC was introduced in 1998 to target challenging applications...

  • 28 July 2014

    Modular offshore rig design reduces deployment costs

    William Jacob Management (WJM) has introduced an offshore rig design that reduces deployment costs and improves speed-to-market for upstream operations. The 3,000-hp...

  • 23 July 2014

    Halliburton promotes Jeff Miller to President

    Halliburton has promoted Jeff Miller to President and has appointed him to the Halliburton Board of Directors effective 1 August 2014. Mr Miller is currently the...

  • 23 July 2014

    Statoil resumes production on Njord A platform

    Statoil has resumed oil and gas production on the Njord A platform in the Norwegian Sea, after a major reinforcement of the platform structure. Production had been shut down...

  • Read more news