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  2. Well intervention - Wikipedia

    en.wikipedia.org/wiki/Well_intervention

    Well intervention vessel Skandi Constructor. A well intervention, or well work, is any operation carried out on an oil or gas well during, or at the end of, its productive life that alters the state of the well or well geometry, provides well diagnostics, or manages the production of the well.

  3. Xylem Inc. - Wikipedia

    en.wikipedia.org/wiki/Xylem_Inc.

    In 1869, the Goulds name was added, and the company became known as Goulds Manufacturing Company. The Gould family ran the operation from 1872 until 1964, renaming the company Goulds Pumps Incorporated in 1926. In the 1960s, Goulds expanded by adding acquisitions of companies in California, Texas, Pennsylvania and New York.

  4. Goulds - Wikipedia

    en.wikipedia.org/wiki/Goulds

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  5. Defect concentration diagram - Wikipedia

    en.wikipedia.org/wiki/Defect_concentration_diagram

    The defect concentration diagram (also problem concentration diagram [1]) is a graphical tool that is useful in analyzing the causes of the product or part defects. [2] It is a drawing of the product (or other item of interest), with all relevant views displayed, onto which the locations and frequencies of various defects are shown.

  6. Aerobic treatment system - Wikipedia

    en.wikipedia.org/wiki/Aerobic_treatment_system

    The aeration stage and the disinfecting stage are the primary differences from a traditional septic system; in fact, an aerobic treatment system can be used as a secondary treatment for septic tank effluent. [1] These stages increase the initial cost of the aerobic system, and also the maintenance requirements over the passive septic system.

  7. Goulds, St. John's - Wikipedia

    en.wikipedia.org/wiki/Goulds,_St._John's

    The Goulds is a designated place in the Canadian province of Newfoundland and Labrador. It is a rural neighbourhood within the City of St. John's southeast of the city centre. History

  8. Hand pump - Wikipedia

    en.wikipedia.org/wiki/Hand_pump

    The complexity of the pumps is a fundamental problem for all programs of this kind, as well as the quality of the pumps given the heavy demands of a village. [20] A 1994 study, also Bank funded, of the endurance of hand pumps in Africa showed that only 41 to 51 percent of hand pumps were still functioning. [ 20 ]

  9. Campbell diagram - Wikipedia

    en.wikipedia.org/wiki/Campbell_diagram

    Campbell Diagram of a steam turbine. Analysis shows that there are well-damped critical speed at lower speed range. Analysis shows that there are well-damped critical speed at lower speed range. Another critical speed at mode 4 is observed at 7810 rpm (130 Hz) in dangerous vicinity of nominal shaft speed, but it has 30% damping - enough to ...