Patent ID: 9244047
Filing Date: 2016-01-26
CPC Classification: E21B,G01N

Claim Text:
1. A remote, positive pressure speciation method for a sample from a drilling fluid, the method comprising: a. diverting a portion of the drilling fluid from a drilling fluid stream at a flow rate equivalent to a flow rate of the drilling fluid from a wellbore into a sample chamber; b. creating a drilling fluid circulation to form a liberated fluid from the sample from the drilling fluid in the sample chamber using a means for agitating; c. applying a suction to a gas capturing chamber fluidly connected to the sample chamber, wherein the suction is applied on one end of the gas capturing chamber to allow the liberated fluid to continuously flow through the gas capturing chamber, continuously be filtered, and continuously flow into a gas analyzer; d. reducing pressure on the gas capturing chamber to allow the liberated fluid to flow at a lower pressure than the drilling fluid coming from the wellbore to the gas analyzer; and e. using a valve to maintain the sample chamber in an open configuration or, when pressure in the drilling fluid stream does not exceed a preset limit, closing off one or more sample inlets, sample outlets or combinations thereof of the sample chamber, and exhausting portions of the liberated fluid as non-analyzed fluid that do not flow to the gas analyzer.