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  2. Median lethal dose - Wikipedia

    en.wikipedia.org/wiki/Median_lethal_dose

    The concept of Ct was first proposed by Fritz Haber and is sometimes referred to as Haber's law, which assumes that exposure to 1 minute of 100 mg/m 3 is equivalent to 10 minutes of 10 mg/m 3 (1 × 100 = 100, as does 10 × 10 = 100). Some chemicals, such as hydrogen cyanide, are

  3. Well kill - Wikipedia

    en.wikipedia.org/wiki/Well_kill

    This is the most common method of a contingency well kill. If there is a sudden need to kill a well quickly, without the time for rigging up for circulation, the more blunt instrument of bullheading may be used. This involves simply pumping the kill fluid directly down the well bore, forcing the well bore fluids back into the reservoir. This ...

  4. Oil well control - Wikipedia

    en.wikipedia.org/wiki/Oil_well_control

    Source: [42] A well kill procedure is an oil well control method. Once the well has been shut-in on a kick , proper kill procedures must be done immediately. The general idea in well kill procedure is to circulate out any formation fluid already in the wellbore during kick, and then circulate a satisfactory weight of kill mud called Kill Weight ...

  5. Why You Might Need to Purposely Kill Your Grass - AOL

    www.aol.com/why-might-purposely-kill-grass...

    Killing your entire lawn gets rid of everything—grassy and broadleaf weeds, off-type lawn grasses, and the few strands of good grass you have left. Unlike the five percent household vinegar used ...

  6. Completion (oil and gas wells) - Wikipedia

    en.wikipedia.org/wiki/Completion_(oil_and_gas_wells)

    Single-well concentric kill string: within the well a small diameter concentric kill string is used to circulate kill fluids when needed. Single-well 2-tubing completion: in this instance 2 tubing strings are inserted down 1 well. They are connected at the lower end by a circulating head.

  7. 2 No-Brainer High-Yield Oil Stocks to Buy With $500 Right Now

    www.aol.com/2-no-brainer-high-yield-094500877.html

    Add in a generous 4.6% dividend yield today, and you can see why, despite oil prices being weak, you might want to buy Chevron. In fact, the best time to buy it is often when oil prices are weak.

  8. Pumping (oil well) - Wikipedia

    en.wikipedia.org/wiki/Pumping_(oil_well)

    In the context of oil wells, pumping is a routine operation involving injecting fluids into the well. Pumping may either be done by rigging up to the kill wing valve on the Xmas tree or, if an intervention rig up is present pumping into the riser through a T-piece (a small section of riser with a connection on the side).

  9. Can Trump kill DEI? What business leaders need to know ... - AOL

    www.aol.com/finance/trump-kill-dei-business...

    Trump’s sharp focus on this topic is expected to exacerbate anxieties over corporate DEI, and has already created confusion among Fortune 500 companies. But Kenji Yoshino, professor of ...