Coiled tubing
Coiled tubing has a key role to play, with strong arguments for itself: It is used throughout the life of a well, from exploration to abandonment, and its flexibility of use, combined with recent technology developments in pipe materials, real-time downhole telemetry, and specialized downhole tools—just to name a few—opens avenues to perform in a rigless manner many o…
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.
The authors of this paper describe an underbalanced coiled-tubing drilling campaign in the operator’s onshore fields using a closed-loop system design.
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Microbial-influenced corrosion (MIC) has been implicated in few corrosion-related challenges in the well-service industry in the past.
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A common problem in oil and gas wells is excess free gas or water production from only certain portions of the completed interval.
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The gas-producing carbonate zones of the Ghawar field in eastern Saudi Arabia have been affected by extensive iron sulfide (FeS) scale deposition, reducing overall gas production and increasing risks during well interventions.
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While increasing coiled-tubing (CT) diameter remains a theoretical option to improve reach, doing so creates logistical challenges.
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Weather conditions aging offshore facilities presented challenges during a monsoon in the South China Sea.
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This work will present an object-oriented tracking system that allows CT operators to monitor defects as they evolve over time.
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Are we really in an industry that is so mature that it is devoid of new thoughts and incapable of generating new concepts to meet the challenges that we face?
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A well in the South China Sea was diagnosed by ultrasonic and temperature logging to have a well-integrity problem, forcing the operator to shut in the well because the leak created a high tubing/casing-annulus pressure.
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In the southern North Sea, many fields suffer from declining gas production because of reservoir-pressure depletion and associated liquid loading.
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There has been remarkable growth in the coiled-tubing industry in North America, resulting largely from the shale revolution. This growth attracted numerous new players into the industry, in addition to the capacity additions made by the existing service providers.