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AssigneeBaker Hughes Incorporated
InventorsHouman M. Shammai, John M. Michaels, James T. Cernosek, Michael J. Moody, Phillip Wills
Estimating the term…
A method and apparatus for maintaining the single phase integrity of a deep well formation sample that is removed to the surface comprises a vacuum jacket insulated single working cylinder divided by two free pistons into three variable volume chambers. The intermediate chamber is pre-charged with a fixed quantity of high pressure gas. Wellbore fluid freely admitted to one end chamber bears against one free piston to further compress the gas. The formation sample is pumped into the other end chamber to first, displace the wellbore fluid from the first end chamber and, sequentially, to further compress the gas to preserve the sample phase state upon removal to the surface.
A tool for maintaining the phase integrity of a deep well formation sample comprising:. a cylinder having at least two free pistons therein dividing said cylinder into at least three, variable volume chambers including an intermediate chamber and first and second end chambers, a first conduit for charging said intermediate chamber with high pressure gas, a second conduit for the substantially free transfer of wellbore fluid into and from said first end chamber and a third conduit for channeling a formation fluid flow into said second end chamber.
A tool for maintaining the phase integrity of a deep well formation sample comprising:.
A tool for maintaining the phase integrity of a deep well formation sample comprising:
A method for collecting a sample of deep well formation fluid comprising the steps of:
Dependencies are inferred from the claim text.