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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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Drilling Ahead: When we don’t tell our story, other people will


By Linda Hsieh, Managing Editor The drilling industry has always taken pride in its technical accomplishments, and rightly so. It takes pride in the innovative spirit that makes the industry so good at a lot of things – from building highly efficient and automated rigs for ultra-deepwater to developing horizontal drilling techniques that have enabled the North American shale revolution. On these and many other technical grounds, where we primarily look to only ourselves for progress, the industry is solid. Where we’re on shakier ground are areas where we have to engage and communicate with people outside of the industry – namely, regulators and the general public. This was made very clear in June at IADC World Drilling 2015 in ...

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Liner system designed to provide effective isolation in high-risk, high-cost HPHT wells


Well environments with increasing pressures, temperatures and depths are becoming the norm in hydrocarbon recovery. These complex and harsh-environment reservoirs drive the need for high-performance completion systems with more durability and reliability than conventional equipment. Innovative technology is paving the way for the industry to delve further into these challenging and risky frontiers, in which the cost of failure is enormous. Liner systems provide a variety of benefits to enhance wellbore economics and efficiency. Installing a liner can reduce casing and cementing costs and minimize rig time. Liners enable the drilling of deep wells with smaller, more efficient rigs, and they facilitate efficient casing of open-hole sections below previously installed casing. Liner systems also ensure zonal isolation while reciprocating during well conditioning and while rotating during cementing operations. Additionally, they provide annular barriers relative to long casing strings that tie back to the surface.

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