Casing/cementing/zonal isolation
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Before you pump materials down your well, be sure you fully understand the effectiveness of your friction reducers and gas migration slurries.
Offline cementing was used to develop a marginal field in Malaysia. The development was made possible through distinctive wellhead technology and good operational planning.
This paper describes the path to implementation of full casing rotation during primary cementing jobs.
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This paper describes the path to implementation of full casing rotation during primary cementing jobs. -
This year, in the presence of enormous challenges, the selected papers demonstrate step changes both in efficiency and in the results of cementing operations.
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Shale producers have learned in recent years that their fracture plugs may not be holding up as well as they thought. One of the first operators to realize the true scope of the issue is now sharing the pathway it took to solving it.
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The complete paper discusses a geophone array, including four, three-component geophones deployed by wireline, that provides a solution for this problem by creating a 3D map of the acoustic environment.
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When a plug gets stuck in a well, consider the cause. Often stuck fracturing tools are a warning sign of casing trouble. Companies that have investigated plug problems have been surprised by the findings.
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An analysis of existing wells in the Martin Linge field, conducted by Equinor when it took over as operator from Total, revealed that several did not have sufficient barriers, leading the company to plan new wells to ensure safe operation.
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In tectonically influenced regions, potential hydrocarbon traps are subject to complex states of stress. This scenario often translates into severe strike/slip (SS) and thrust-fault or reverse-fault (TF/RF) stress states.
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The oilfield services company's Tubular Running Service was recognized for reducing costs, maximizing safety.
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The cementing services market size in the US is expected to drop 50% year-on-year from 2019. The significant drop in Permian Basin activity will account for 40% of the total market size reduction.
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The complete paper presents a case study in which offline cementing improved operational efficiency by reducing drilling times and provided significant cost savings.
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