Casing/cementing/zonal isolation
This paper presents a comprehensive literature review of perforate, wash, and cement techniques that compares new methods with traditional ones and uses field cases and computational fluid dynamics to find the most cost- and time-effective practices without sacrificing safety.
Cementing and zonal isolation remains an important topic to operators and service providers alike. Additionally, an increase in the number of papers with both academic and field-driven content shows that there is no lack of initiative for operators to materially improve on existing methods and technology.
This paper highlights nontraditional methods to cure oil-based-mud losses in horizontal wells drilled in unconventional plays.
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This paper describes the first application of the 10¾-in. CV in a deep-well sour environment. -
The most common method used for the placement of cement plugs is the balanced-plug method using drillpipe, tubing, or a combination of both.
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Many good well-construction-technology papers came out last year, as well as a couple on older technologies that either had not been published earlier or had been released and were underappreciated.
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This paper introduces a fit-for-purpose surface-controlled formation-isolation valve (SFIV) designed for the temporary well suspension required for this strategy.
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Deepwater cementing becomes increasingly challenging as drilling operations move to greater water depths and more-remote locations.
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ADMA-OPCO had integrity problems in one of its gas wells, and abandonment was the only option available to restore the integrity of the offshore multiwell jacket and revive adjacent wells.
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In 2012, the number of unconventional tight gas/shale and high-pressure/high-temperature (HP/HT) papers continued to grow. This year, we had some very interesting developments in these and other areas of well construction.
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The Eagle Ford shale in Zavala County, Texas, is similar to many high-carbonate-content oil-shale formations.
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To maintain zonal isolation throughout the life of a high-pressure/high-temperature (HP/HT) well, the cement sheath must perform reliably at temperatures that can exceed 315°C.
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The Granite Wash formation presents several challenges in drilling the build section from a vertical open hole to form a lateral.
