Churchill Drilling Tools, the provider of dart activated drilling tools, is celebrating the 500th deployment of its DAV MX CircSub.
The DAV MX was recently selected by an operator for a dual gradient drilling project, and last year it was deployed at a record depth of 26,012ft in a development well off Louisiana.
The DAV MX has completed 500 runs in key production locations around the world within five years.
“The 500th run of the DAV MX in particular cured 400 bbl/hour losses for an operator by allowing more than 400 bbl of coarse lost circulation material through,” says Mike Churchill, Churchill Drilling Tools’ director.
Outside of the US, the DAV MX was activated a record five times to displace drilling fluids within a complex high-pressure, high-temperature well in the North Sea. This allowed the operator to pump at higher flow rates, saving considerable time and cost.
The DAV MX recently set a new high-angle record, being deployed in a 98-degree angle well and proving to be a helpful contingency tool in curing unexpected losses. The tool was cycled twice with Churchill’s Standard Diverter Darts, allowing a total of 90 bbl of lostLCM to be pumped through it.
The DAV MX is used globally across a range of drilling environments including deepwater, HPHT and high-angle extended reach drilling. The company says its mechanical extrusion system is significantly more reliable, faster and more cost effective than polymer extrusion, the process used for traditional ball-activated systems.
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