Acidizing/stimulation
A new study from Saudi Aramco shows that the answer to the industry's billion-dollar corrosion problem might be sitting in your medicine cabinet.
Part 4 of this series provides an overview of ongoing research and recent technology improvements within the US taking place in both academia and the service industry.
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What are we, in the upstream oilfield service companies, doing about it? The Middle East upstream oil and gas industry is shifting its focus to unconventional and tight-gas resource development.
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The first acid job dates to 1895. Challenges remain, however, when it comes to lithology, coverage, penetration, and management of reaction products. These themes remain a focus for stimulation engineers. -
This study illustrates how a combination of a straddle-packer system and a downhole real-time telemetry successfully stimulated up to 38 stages while maintaining packer-seal integrity and downhole pressure.
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This paper describes the analysis of actual performance data for acid fracturing in a tight carbonate formation to investigate the ineffectiveness of the process.
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This paper presents a novel mathematical model for design and evaluation of fluoroboric acid treatments that takes into account the chemical kinetics and equilibrium aspects of important reactions and fluid flow inside the reservoir rock.
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This paper presents design considerations and field-trial applications for determining practical dimensions and limits for interdependencies associated with stage length, perforation clusters, and limited-entry pressures.
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This paper focuses on identifying a hydrofluoric-acid-derivative treatment that could be used as a single-step sandstone-acid treatment with all the associated benefits but without the need for acid-flowback services.
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To improve the productivity index of a well in a carbonate reservoir offshore Abu Dhabi, a multilateral acid-jetting technology was adopted as a more-effective alternative to typical drainage methods.
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It is pleasantly surprising to find a revival in sandstone acidizing. For many years, sandstone acidizing was becoming almost a lost art, overshadowed by carbonate acidizing and hydraulic fracturing.
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The authors describe a self-breaking, formation-damage-free, novel nanoparticle-based gelled-acid system to replace polymer-based gelled-acid systems.
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The authors describe the benefits of a single-phase retarded inorganic acid system, which they write features the same benefits as emulsified acids while eliminating the drawbacks of the latter.
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