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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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High-cost subsea sector faces test of economics


Risk, cost and safety and environmental concerns impact every aspect of oil and gas recovery, but these challenges are especially daunting in the subsea sector. Here, as operators drive into increasingly deeper reservoirs and high-pressure, high-temperature (HPHT) fields, a single failure can be catastrophic.

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On-command reamer allows for digital confirmation of multiple activations, blade status

The GaugePro Echo on-command digital reamer is downlink-activated and can be activated and reactivated as many times as necessary. This enables selective reaming of problem formations and sidetrack windows to facilitate open-hole sidetracks. The reamer also provides real-time confirmation of blade status and position.

Expandable reamers were developed to improve efficiencies and reduce risk when drilling through problematic formations in deepwater and other offshore wells. While mechanical and hybrid expandable underreamers have been used for some time in offshore applications, they have not provided the communication, operational reliability and flexibility that operators desire in high cost-per-foot drilling applications.

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D&C Tech Digest


Subsea Services Alliance, the collaboration among Helix Energy Solutions Group, OneSubsea and Schlumberger, has announced the first joint technology project between OneSubsea and Helix to engineer and manufacture a 15,000-psi intervention riser system. This technology advances the alliance’s objectives to offer well intervention solutions to service the increasing number of high-pressure wells in the subsea environment. The system, which will be available on a rental basis in mid-2017, is being engineered and built at OneSubsea facilities in Leeds, UK

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