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Innovating While Drilling

Drilling & Completions News

The steel jacket for the Mariner A platform began its journey to the UK Continental Shelf in August. The Mariner Field is located on the East of Shetland Platform in the UK North Sea, approximately 150 km east of the Shetland Isles. Topsides installation is planned to take place in 2016.

Shell has received the approval of one Application for Permit to Modify (APM) to conduct exploratory drilling activities into potential oil-bearing zones offshore Alaska at one of the wells at the Burger Prospect, Burger J. The company remains limited to the top section of the Burger V well. The announcement came from Brian Salerno, Director of the US Bureau of Safety and Environmental Enforcement (BSEE), after extensive review.

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PDC bit uses staggered cutter configuration to take energy from vibrations to drill ahead


Excessive vibration caused by unrestrained lateral forces in directional wells can wreak havoc on drilling operations. In addition to reducing ROP, directional control (i.e., steerability) and overall drilling efficiency, torsional vibration at the bottomhole assembly (BHA) is often pegged as the source of a number of costly issues, including broken cutters, dull bits, trips and even damaged formations. To address such vibration-related problems, Ulterra Drilling Technologies has developed CounterForce, a patent-pending technology with a cutter orientation design inspired by the machining industry. It features a staggered cutter configuration capable of improving mechanical specific energy by dampening vibration, reducing bit reactive torque and redirecting force back into the rock. The cutting structure features pairs of cutters with opposing side rakes (angles), which allows the bit to harness reactive forces from the formation to counter the lateral forces from the drillstring.

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Deepwater, high-pressure completion tubular maximizes combined-load capabilities


This article discusses a two-year comprehensive effort to design, test, manufacture and deploy a new high-pressure completion tubular for Chevron’s deepwater Gulf of Mexico operations. The major challenge was to design, test and manufacture a subsea completion string that would provide efficient hydraulics during the fracturing operations while ensuring mechanical and pressure integrity.

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