Apparatus and method for draining high pressure fluid samples without mercury
AssigneeHalliburton Company
InventorsRoger L. Schultz, Paul D. Ringgenberg
Life of this patent
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Abstract
A sample draining apparatus includes a hydraulic circuit having a sampler vessel and a drain vessel disposed therein. A first pump is located outside the hydraulic circuit and pumps fluid from a fluid source outside the hydraulic circuit into the hydraulic circuit to pressurize the circuit. A second pump is disposed in the hydraulic circuit for circulating fluid in the hydraulic circuit so that a fluid sample flows from the sampler vessel into the drain vessel while the sample is maintained within the closed hydraulic circuit.
Claims21
A system for draining fluid samples, comprising:
- a sampler vessel having a sampler vessel inlet and a sampler vessel outlet;
- a fluid reservoir;
- a supply conduit connecting said fluid reservoir with said sampler vessel inlet;
- a first pump means, disposed in said supply conduit, for pumping fluid from said fluid reservoir to said sampler vessel inlet;
- a drain vessel for receiving a fluid sample from said sampler vessel, said drain vessel having a drain vessel inlet and a drain vessel outlet;
- a drain conduit connecting said sampler vessel outlet with said drain vessel inlet;
- a first valve disposed in said drain conduit;
- a discharge conduit connecting said drain vessel outlet with said supply conduit between said first pump means and said sampler vessel inlet;
- a second valve disposed in said discharge conduit;
- and
- a second pump means, disposed in said discharge conduit, for pumping fluid from said drain vessel outlet to said supply conduit.
A sample draining apparatus comprising:
- a sampler vessel having a sampler vessel inlet and a sampler vessel outlet;
- a drain vessel having a drain vessel inlet and a drain vessel outlet;
- a hydraulic circuit having said sampler vessel and said drain vessel disposed therein and dividing said hydraulic circuit into a first hydraulic circuit portion between said sampler vessel outlet and said drain vessel inlet and a second hydraulic circuit portion between said drain vessel outlet and said sampler vessel inlet;
- first pump means, located outside said hydraulic circuit, for pumping fluid from a fluid source outside said hydraulic circuit to said second hydraulic circuit portion and thus to said sampler vessel inlet to pressurize fluid contained in said sampler vessel;
- a pump outlet conduit connecting said first pump means to said second hydraulic circuit portion at an intersection;
- and
- second pump means, disposed in said hydraulic circuit for circulating fluid in said hydraulic circuit so that a fluid sample flows from said sampler vessel through said first hydraulic circuit portion into said drain vessel.
Dependencies are inferred from the claim text.