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Pipelines provide an economical and reliable means of transporting oil and gas to market, and are as vital to the development of offshore oil and gas resources as are the wells and platforms they support. The pipeline industry must meet a broad range of technical challenges as it expands this key infrastructure.
Increasingly complex wellbores make it ever more difficult to stay within prescribed bottomhole pressures using traditional drilling methods. Managed pressure drilling techniques offer drillers a method for maintaining a BHP that is neither too high nor too low.
Formation water analysis is a crucial step in hydrocarbon exploration and production. It provides input to petrophysical evaluation, helps assess potential for corrosion, scaling and souring, and aids in the understanding of reservoir connectivity. This article explains the causes of variation in formation water chemistry—between formations and over time. Case studies highlight methods for ensuring sample purity and demonstrate applications of downhole and laboratory evaluation techniques.
Dielectric logging tools provide supplemental information for analyzing freshwater reservoirs and identifying movable hydrocarbons. A recently introduced tool offers a dielectric dispersion measurement to evaluate rock texture in carbonates and shale effects in siliciclastics. Case studies from freshwater, heavy-oil and carbonate reservoirs illustrate applications of dielectric data.
Defining Logging: Discovering the Secrets of the Earth
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