The high rate production test performed by Norsk Hydro on the Troll East structure during the summer of 1985 with the semi submersible drilling rig Treasure Seeker required that a large number of specially designed, modified or adapted equipment items were used in order to fulfil the test objectives and maintain safe operations. These were:

  • -

    Jetting tool for casing cleaning.

  • -

    Gravel pack floor manifold to ease operations.

  • -

    Surface read out of downhole pressure and temperature through cable on the outside of the tubing.

  • -

    3 inch I.D. tester valve.

  • -

    3.7 inch I.D. annulus pressure operated kill valve.

  • -

    Full bore double gauge carrier.

  • -

    5 inch I.D. sub-sea test valve.

  • -

    5 inch I.D. lubricator valve.

  • -

    5 1/8 inch bore flowhead.

  • -

    Vertical high capacity separator.

  • -

    32 channel data logger.

The use of this equipment together with other more commonly used equipment made the test a success.

Keywords:
execution, high rate production test, standard test separator, annulus pressure, separator, objective, drillstem/well testing, valve, troll high rate production test, drillstem testing
Subjects:
Formation Evaluation & Management, Drillstem/well testing
Copyright 1987, Society of Petroleum Engineers
You can access this article if you purchase or spend a download.