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UT Austin-based drilling automation consortium builds data visualization templates, develops data-driven top drive monitoring techniques

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Although automated drilling has been a popular discussion topic among drilling engineers for much of the past decade, practical solutions have been slow to emerge. Since its launch in May 2015, the University of Texas-based Rig Automation and Performance Improvement in Drilling (RAPID) consortium has worked to speed the pace of automated drilling innovations by delivering pragmatic and immediately applicable solutions to some of the drilling industry’s most pressing issues...

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New drill stem rotary shoulder connection incorporates innovative single start shark thread shape

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For the past century, the oil and gas industry has been pushing the limits of the existing drilling envelope to reach deeper, more remote hydrocarbon reservoirs. The evolution of drilling programs has driven drill string manufacturers to engineer new drill pipe solutions to safely develop the most challenging horizontal and extended-reach drilling (ERD) well profiles.

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Extended life, quicker make-up and gas tightness among key innovation areas as operators seek larger tubulars, lower costs of ownership

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In a market where operators and drilling contractors alike are analyzing every nickel and dime in their operations, drill pipe manufacturers must ensure tubular technologies are providing the required performance at an accessible cost. “What we’re doing right now is helping companies to reduce their cost of ownership,” said Guillaume Plessis, Director of Global Marketing for Grant Prideco, a National Oilwell Varco (NOV) company. “We will still see optimization of the product, but we also want to make it a very affordable possibility.”

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Experimental setup at Texas A&M Dual Gradient Drilling Lab aims to study riser gas migration in controlled mud level drilling system

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Growing demand for energy is pushing operators to drill in ever-increasing ocean depths. Deepwater offshore reservoirs often exist where the required pressure from the drilling mud for well control is very near the pressure at which overlying layers can break down, resulting in loss of circulation of drilling mud to thief zones, inviting dangerous kicks of high-pressure gas and oil. Such narrow drilling pressure windows leave razor-thin margins for error...

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Light annular mud cap drilling, downhole isolation valve help to drill fractured gas reservoir in Indonesia

The lower completion consists of a float shoe with a flat-bladed nose, alternating joints of pre-perforated, frangible disk plug, and a 7-in. x 9 5/8-in. liner top packer.

An operator in Indonesia sought to drill on a gas field that lies on the western flank of the Central Palembang Sub-basin, in the South Sumatra Basin. South Sumatra is a Tertiary back-arc basin, approximately 500 km by 300 km. The pre-Tertiary rocks provide the lower reservoir portion of the gas field, while the upper portion of the reservoir is within porous Tertiary sediments of the Lower Talang Akar and Batu Raja formations. The Tertiary and pre-Tertiary reservoir rocks are enhanced by natural fractures...

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Coiled-tubing cementing operation on HPHT well uses MPD technique to lower costs, ensure integrity

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The number of exploration wells drilled in high-pressure, high-temperature (HPHT) environments keeps growing, spurred by the ongoing search for new oil and gas reserves. Per the Norwegian Standards Organization (NORSOK), an HPHT well has a wellhead shut-in pressure exceeding 69 MPa (10,000 psi) and an ambient temperature greater than 150°C (302°F)...

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Big data brings insights but also cybersecurity exposure

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A critical theme that ran throughout our Critical Issues in Drilling and Completions Q&A’s in the last issue of DC was around data and how that’s taking center stage in the digital oilfield. That theme continues in this issue, where you can read about the latest evolution in intelligent coiled-tubing technologies (Page 42). Even in this hard-hit segment of the market – down by a whopping 41% from 2014 to 2015, then by an additional 39% in the year that followed – companies are looking toward data as the next step for advancing efficiency and cost effectiveness.

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