CATEGORIZED | News

Methane hydrate technologies to be tested on Alaska’s North Slope

Posted on 25 October 2011

The US Department of Energy (DOE), ConocoPhillips and the Japan Oil, Gas and Metals National Corp will work together to test innovative technologies for producing methane gas from hydrate deposits on the Alaska North Slope. The tests will use the “Ignik Sikumi” gas hydrate field-trial well, a fully instrumented borehole installed in the Prudhoe Bay region by ConocoPhillips and the Office of Fossil Energy’s National Energy Technology Laboratory earlier this year.

Current test plans call for roughly 100 days of continuous operations from January to March 2012. Tests will include the initial field trial of a technology that involves injecting CO2 into methane hydrate-bearing sandstone formations, resulting in the swapping of CO2 molecules for methane molecules in the solid-water hydrate lattice, the release of methane gas, and the permanent storage of CO2 in the formation. This experiment will be an extension of earlier successful tests of the technology conducted by ConocoPhillips and their research partners in a laboratory setting.

Following the exchange tests, the team will conduct a monthlong evaluation of an alternative methane-production method called depressurization. This process involves pumping fluids out of the borehole to reduce pressure in the well, which results in dissociation of methane hydrate into methane gas and liquid water. The method was successfully demonstrated during a weeklong test conducted by Japan and Canada in northwestern Canada in 2008.

The new testing will take place under a statement for cooperation signed in 2008 and extended in 2011 by DOE and Japan’s Ministry of Economy, Trade and Industry. The production tests are the next step in both US and Japanese efforts to evaluate the response of gas hydrate reservoirs to alternative gas hydrate production concepts. The tests will provide critical information to inform potential future extended-duration tests.

Methane hydrate consists of molecules of natural gas trapped in an open rigid framework of water molecules. It occurs in sediments within and below thick permafrost in Arctic regions and in the subsurface of most continental waters with a depth of approximately 1,500 ft or greater. Many experts believe it represents a potentially vast source of global energy, and DOE scientists have studied methane hydrate resource potential and production technologies for more than two decades.

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 31 October 2014

    Japan Drilling to operate new jackup under construction at Keppel

    The KFELS Super B Class design has a drilling depth of 35,000 ft. The rig's leg structure is designed to provide enhanced robustness for operations at 400 ft water depth...

  • 29 October 2014

    New intelligent water management solution based on oxidizer technology

    Nalco Champion has launched the RenewIQ line of oilfield water reuse solutions to help operators reduce freshwater consumption and associated handling costs...

  • 29 October 2014

    Baker Hughes launches all-electric intelligent well system

    Baker Hughes has commercially released its MultiNode all-electric intelligent well system. It allows operators to remotely monitor and control a greater number of production zones...

  • 29 October 2014

    Tercel collaborates with TOTAL to design MicroCORE PDC drill bit

    Tercel Oilfield Products has launched the MicroCORE cutting system at the 2014 SPE Annual Technical Conference and Exhibition in Amsterdam. The MicroCORE cutting...

  • 28 October 2014

    First extension well in pre-salt Libra leads to oil discovery

    The Libra consortium announced that the drilling of the first extension well in the Libra area, known as 3-BRSA-1255-RJS (3-RJS-731), has proven the discovery of high-quality oil...

  • Read more news