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DRILLING MUD DEGASSER

  • US 3,676,984 A
  • Filed: 10/22/1970
  • Issued: 07/18/1972
  • Est. Priority Date: 10/22/1970
  • Status: Expired due to Term
First Claim
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1. In a drilling mud degasser having a vacuum housing defining a chamber, an inlet pipe for admitting gas-cut mud into the upper part of the chamber, an outlet structure for removing degassified mud from the bottom part of the chamber, and a baffle means between the inlet pipe and outlet structure for dividing the flow of gas-cut mud into thin layers and maintaining the mud in that state for a period of time to permit entrapped gas to be removed by vacuum, the improved inlet pipe and baffle means comprising:

  • a substantially horizontal inlet pipe extending into the upper part of the chamber, said pipe defining a downwardly opening aperture in its wall for admitting gas-cut mud into the chamber, said aperture having an area which is less than the transverse cross sectional area of the pipe whereby the mud flow is accelerated and subjected to shear as it passes through the aperture; and

    an elongate baffle mounted in the chamber in transverse relation to the chamber'"'"''"'"'s vertical axis, said baffle being coextensive with the aperture and being disposed adjacent to and beneath it whereby the gas-cut mud entering the chamber through the aperture is divided into at least two thin, turbulent layers supported by the baffle.

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