Device for determining a volume of gas in a sample
AssigneeTotalenergies SE
InventorsGilles Couchou-Meillot, Paul Pochitaloff-Huvale
Life of this patent
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Abstract
The invention relates to a device for determining a volume of gas in a sample contained in a vessel, the device comprising: a frame configured to attach the vessel; a needle having a longitudinal axis, comprising a proximal part and a distal part, the distal part being configured to pierce the vessel and the proximal part comprising a lumen; and an analysis compartment comprising a cell in fluid communication with the lumen of the proximal part of the needle. The invention also relates to a method for determining a volume of gas in a sample contained in a vessel.
Claims19
A device for determining a volume of gas in a sample contained in a vessel (4), the device comprising:
- a frame (11) configured to attach the vessel (4);
- a needle (1) having a longitudinal axis, comprising a proximal part (2) defined as a part of the needle connected to an analysis compartment and a distal part (3) defined as a part of the needle opposite the proximal part, the distal part (3) being configured to pierce the vessel (4) and the proximal part (2) comprising a lumen;
- and
- the analysis compartment comprising a cell in fluid communication with the lumen of the proximal part (2) of the needle (1), and a piston slidable in the cell and sealing the cell in a gas-tight manner.
A method for determining a volume of gas in a sample contained in a vessel (4), the method comprising the steps of:
- attaching the vessel (4) to a frame (11) of a device, the device having:
- the frame (11) configured to attach the vessel (4);
- a needle (1) having a longitudinal axis, comprising a proximal part (2) defined as a part of the needle connected to an analysis compartment and a distal part (3) defined as a part of the needle opposite the proximal part, the distal part (3) being configured to pierce the vessel (4) and the proximal part (2) comprising a lumen;
- and
- the analysis compartment comprising a cell in fluid communication with the lumen of the proximal part (2) of the needle (1);
- piercing the vessel (4) with the needle (1) of the device;
- transferring gas present in the sample from the vessel (4) to the cell of the device;
- and
- determining compressibility of the gas within the cell.
Dependencies are inferred from the claim text.