TAKING THE HEAT OUT OF HIGH TEMPERATURE WELL DRILLING OPERATIONS

The Challenge

Addressing potential inefficiencies during drilling operations in high-temperature wells.

The OSSO client, an oilfield services company, faced an increase in non-productive time when downhole temperatures exceeded the maximum operating limits of the MWD during an onshore campaign in the Middle East.

It sought a solution that would support the operation of the downhole tool within its maximum operating rated temperature.

The Response

OSSO delivered and installed a land rig closed loop mud cooler system on the long reach lateral hole sections – where the temperatures exceeded 330°F.

This approach reduced the downhole temperature so the MWD could operate safely and within its maximum operating temperatures.

OSSO personnel monitored and evaluated readings from the mud cooler and drilling parameters hourly, confirming that the equipment was working to its optimum performance levels throughout the project.

The Result

The solution delivered safety, environmental, operational and commercial gains for the client while demonstrating how specialist skills, resources and experience are transferable to onshore operations.

The drilling of hole sections was completed in a reduced number of days – equating to a 40% decrease in round trips per section drilled. The OSSO system delivered an average cost saving of $218,000 per well*.

More than that, the process:

reduced by 95% the cost of tool damage beyond repair (DBR)*

improved the overall surface working environment for the rig crew

increased the lifecycle of BOP elastomers and mud pump liners.

Find out more: www.ossoltd.com

Contact: Alasdair Carstairs – Acarstairs@ossoltd.com

*Ref figures from SPE-203260-MS paper.