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  • Journal article
    Alderman NJ, Gavignet A, Guillot D, Maitland GCet al., 1966,

    High-temperature, high-pressure rheology of water-based muds.

    , Society of Petroleum Engineers of AIME Paper SPE, Vol: DELTA

    This paper reports measurements of the rheology of a range of water based drilling muds at temperatures up to 130DEGREESC and pressures up to 1000 bar. The fluids were highly thixotropic, and decoupling of temperature/pressure effects from those due to time dependent structural changes was achieved by developing a sample preparation and handling procedure which ensured that all samples experienced identical shear histories prior to study in the rheometer. The observed behaviour of the fluids and its physical origins are discussed. A simple model allowing reliable extrapolation of surface measurements to downhole conditions for well circulated water based muds is presented.

  • Conference paper
    Acha S, van Dam KH, Keirstead J, Shah Net al.,

    Integrated modelling of agent-based electric vehicles into optimal power flow studies

    , Frankfurt, Germany
  • Report
    Florin N, Fennell PS,

    Assessment of the validity of "Approximate minimum land footprint for some types of CO2 capture plant" provided as a guide to the Environment Agency assessment of Carbon Capture Readiness in DECC's CCR Guide for Applications under Section 36 of the Energy Act 1998

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