Case Study

Performance Alert

D-Tech RSS Executes High-Angle Tangent While Eliminating 1.2 Drilling Days For North Dakota Operator

  • THE CHALLENGE

    • A North Dakota customer wanted to complete an infill development project and the application called for 1,500 to 2,200-ft stepouts in the intermediate section of the well.
    • This drilling plan required the operator to build and hold between 15 and 20 degrees of inclination and hold that desired inclination for 8,000 ft.
    • The customer attempted to complete the section with a conventional bottomhole assembly (BHA) and with acompetitor’s rotary steerable system.

  • THE SOLUTION

    • The operator chose to run the D-Tech RSS and liked the flexibility of running the same directional package with their preferred directional company (Total Directional).
    • D-Tech worked with all parties to design well-specific operating guidelines and execute the wellbore with their goals and requirements in mind. A customized SOP was produced and utilized to drill the wellbore and meet low-dogleg severity objectives. 
    • Post-run review was constructed and delivered to evaluate performance, which allowed the customer to improve the SOP and provide continued improvement for future runs.

  • THE BENEFIT

    • The 6,381-ft interval was completed in 42 drilling hours, eliminating 1.2 days from the next best high-angle tangent offset.
    • The D-Tech RST eliminated micro-doglegs that occur when drilling tangents conventionally.
    • The operator saw increased overall ROP on the run and the improved wellbore consistency reduced drag, allowing for improved ROP on subsequent runs.
    • The higher ROP that the RSS achieved in hole section allowed the customer to reevaluate the drilling program to include higher-angle tangents and additional wells on a pad.

Details

Location

North Dakota

project Type

Infill development operation

work scope

1,500 to 2,200-ft stepouts in the intermediate section of the well

footage drilled

6,381-ft interval

drilling time

42 drilling hours, eliminated 1.2 drilling days

benefit

Increased ROP, improved wellbore consistency, and reduced drag

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