Drilling bits: Find out how ONGC saved costs by making the right choice
Jun 12: Oil and Natural Gas Corporation Limited (ONGC) recently needed to drill a minimum of 300 m [980 ft] through a volcanic dike formation. 8In an offset well, the operator encountered high variation in unconfined compressive strength (UCS) throughout the section -- in some places as high as 33,000 psi [228 MPa]. 8While drilling the offset well, nine bits were used to penetrate through 550 m [1,804 ft] of Mesozoic formation with an average ROP of 0.5 m/h [1.6 ft/h]. 8This resulted in high drilling costs. 8Moving forward, ONGC needed to cut costs in order to drill the deepest offshore HT well Find out more on what ONGC did to cut costs.Click on Report.