US 11,739,600 B2
Degassing and analyzing drilling fluid
Richard Bingham, Katy, TX (US); and Reda Karoum, Houston, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 16/639,583
Filed by M-I L.L.C., Houston, TX (US)
PCT Filed Aug. 28, 2018, PCT No. PCT/US2018/048216
§ 371(c)(1), (2) Date Feb. 16, 2020,
PCT Pub. No. WO2019/060098, PCT Pub. Date Mar. 28, 2019.
Claims priority of provisional application 62/560,662, filed on Sep. 19, 2017.
Prior Publication US 2021/0131203 A1, May 6, 2021
Int. Cl. E21B 21/06 (2006.01); B01D 19/00 (2006.01); B01D 33/03 (2006.01); B01D 33/41 (2006.01); G01N 33/28 (2006.01)
CPC E21B 21/067 (2013.01) [B01D 19/0036 (2013.01); B01D 19/0042 (2013.01); B01D 19/0063 (2013.01); B01D 33/0346 (2013.01); B01D 33/41 (2013.01); E21B 21/065 (2013.01); G01N 33/2823 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a degasser operable to release and separate mud gas entrained in drilling fluid discharged from a wellbore at an oil and gas wellsite, wherein the degasser comprises:
a gas-liquid separator comprising a fluid separator housing comprising a separator inlet configured to receive the drilling fluid containing the entrained mud gas, a first separator outlet configured to discharge the mud gas, and a second separator outlet configured to discharge degassed drilling fluid, wherein the second separator outlet is configured to be fluidly connected with a drilling fluid destination, wherein the drilling fluid destination comprises a container configured to contain the drilling fluid, and wherein a bottom end of the fluid separator housing is positioned at least partially within the container of the drilling fluid destination such that the second separator outlet is located below a level of the container to which the drilling fluid is filled when contained within the container of the drilling fluid destination; and
a venturi ejector operable to move the drilling fluid containing the entrained mud gas from the container of the drilling fluid destination to the gas-liquid separator, wherein the venturi ejector comprises a first ejector inlet configured to fluidly connect with a motive gas source, a second ejector inlet configured to fluidly connect with the container of the drilling fluid destination, and an ejector outlet fluidly connected with the separator inlet.