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North Sea operator cuts rig time using Churchill circulation tool for hole cleaning and BOP jetting

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Oilfield Technology,

  • Operator saves more than six hours rig time and eliminates an extra trip in hole using dart activated DAV MX™ Circulation Sub.
  • Operator benefits from DAV MX™’s resilience and versatility through hole cleaning and BOP jetting on recent exploration well.
  • Churchill’s technology to be showcased at ONS in Stavanger, 27 - 30 August.

With more than 1600 runs and 730 activations, operators across the globe are cutting rig time by deploying the DAV MX™ CircSub, the flagship tool from specialist oilfield service company, Churchill Drilling Tools. Run in hundreds of wells every year and recognised for its reliability, resilience and versatility, the dart activated DAV MX™ is the ultimate downhole circulation tool.

With demand continuing to grow for the award-winning tool, the company, ahead of exhibiting at ONS in Norway this month, has released details of one of 14 activations in the last year in the Norwegian Sea alone.

Demonstrating the DAV MX™’s resilience and versatility, a North Sea operator activated the tool on a specialist Well Bore Clean Up (WBCU) run on a recent exploration well. The tool was used for hole cleaning and BOP jetting, however, prior to its activation, the DAV MX™ had to be resilient enough to withstand 113 barrels of 1.6SG cement slurry so the operator could spot a temporary cement plug.

Once spotting was complete, using one of Churchill’s specialist smart darts the DAV MX™ was activated allowing the operator to hole clean at 3500 lpm. The client then completed five jet passes of the BOP removing debris which could impact its performance.

The operator, said it was pleased with the DAV MX™’s performance having eliminated an extra trip in hole using a dedicated clean out assembly and quoted rig time savings of more than six hours. It had successfully used the DAV MX™ on previous campaigns, primarily on a contingency basis – that success provided the confidence to try the tool across other applications, including hole cleaning and BOP jetting.

Corin Lewsey, Regional Account Manager at Churchill Drilling Tools, said: “We’re pleased our client cut costs and completed its campaign more efficiently running the DAV MX™. Operators are carrying out more campaigns running the tool than ever before and this recent example adds to our growing track record of delivering significant value.

“After more than 730 activations and 1600 runs, operators are assured the DAV MX™ has the resilience, reliability and versatility to cut operating time and improve campaigns across Completions, P&A and drilling operations. I believe the DAV MX™ is now firmly established as the leading circulation tool across the North Sea market.”

Churchill’s range of innovative downhole solutions, including the DAV MX™ CircSub and HyPR™ Holesaver™, the quickest and safest low cost means of recovering from most stuck pipe senarios, will be on display at the ONS Conference in Stavanger, from 27 - 30 August. Members of Churchill’s highly experienced team will discuss the simplicity of the company’s tools and demonstrate why Churchill’s technology has the widest operating envelope in class.

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