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  2. Solids control - Wikipedia

    en.wikipedia.org/wiki/Solids_control

    Solids control is a process used in drilling rigs which use drilling fluid. It involves separating the "cuttings" (drilled material) from the fluid, allowing it to be recirculated or discharged to the environment .

  3. Vacancy defect - Wikipedia

    en.wikipedia.org/wiki/Vacancy_defect

    Vacancies occur naturally in all crystalline materials. At any given temperature, up to the melting point of the material, there is an equilibrium concentration (ratio of vacant lattice sites to those containing atoms). [2] At the melting point of some metals the ratio can be approximately 1:1000. [3] This temperature dependence can be modelled by

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  5. Diffusion creep - Wikipedia

    en.wikipedia.org/wiki/Diffusion_creep

    The number of vacancies may also be influenced by the number of chemical impurities in the crystal lattice, if such impurities require the formation of vacancies to exist in the lattice. A vacancy can move through the crystal structure when the neighbouring particle "jumps" in the vacancy, so that the vacancy moves in effect one site in the ...

  6. Decanter centrifuge - Wikipedia

    en.wikipedia.org/wiki/Decanter_Centrifuge

    This becomes relevant in the majority of industrial jobs where solids, liquids and gases are merged into a single mixture and the separation of these different phases is necessary. A decanter centrifuge (also known as solid bowl centrifuge ) separates continuously solid materials from liquids in the slurry, and therefore plays an important role ...

  7. Drill cuttings - Wikipedia

    en.wikipedia.org/wiki/Drill_cuttings

    Generally, the solids are buried in the same pit (the reserve pit) used for collection and temporary storage of the waste mud and cuttings after the liquid is allowed to evaporate. Pit burial is a low-cost, low-tech method that does not require wastes to be transported away from the well site, and, therefore, is very attractive to many operators.