Cover: Oilfield Review Winter 2008
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Editorial: Twenty Years of the Oilfield Review
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Nuclear magnetic resonance logging provides basic information about reservoir fluids. Newly developed techniques offer improved fluid information and in situ fluid properties, including oil viscosity. Two-dimensional NMR maps can be generated that give petrophysicists a powerful new tool to better understand reservoir rocks and the fluids they hold.
In the oil field, optical fiber isn’t just for monitoring pumps and production. Fiber-optic technology is now used in a wide range of coiled tubing applications, delivering downhole measurements in real time and tying them to depth. With this capability, operators can better respond to deviations from their treatment plans.
For more than a decade, fiber-optic technology has slowly been integrated into an expanding array of oilfield applications. In addition to being a medium for transmitting data and commands, optical fiber is an intrinsic thermometer that can be sampled along its entire length. This article describes how operators use pulses of light to monitor downhole temperature and thermal processes.
One of the most significant challenges in modern onshore seismic interpretation is understanding near-surface effects and correcting their impact on subsurface data. Remote sensing using satellites enables 3D mapping and discrimination of surface features and lithologies, from which risk maps for logistics and data quality can be developed. Case studies involving desert terrain and glacial moraines illustrate this technique.
Acidization to improve well performance is often constrained by reservoir temperature. New techniques now allow operators to perform acidization at elevated temperatures in sandstone and carbonate reservoirs without damaging results or undue costs. These advances in well stimulation include new chemical agents and procedures. This technology is illustrated by a variety of examples from Africa, the USA, the Middle East and Asia.
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New Books and Coming in Oilfield Review
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