Back to results
US 10,502,031 B2Granted
Method and apparatus for producing gas from a formation containing both gas and water
OwnerCharles W. Wintersinventor
Life of this patent
Estimating the term…
Abstract
A downhole filter tool is placed in a wellbore for separating gas from a solution containing both gas and water in a subterranean hydrocarbon bearing formation. The filter tool includes a filter bag inserted inside a perforated inner tube that is surrounded by a casing. The filter bag comprises a layer of hydrophobic material that allows gas to be separated from the water.
Claims16
Apparatus for separating gas from a solution containing gas and water in a well, comprising:
- a filter bag having an open end allowing the solution to be received under hydrostatic pressure into the interior of the filter bag, the filter bag including a filtering material configured to separate the gas from the water;
- a tube sleeved over the bag, the tube having an open end into which the filter bag may be received, and plurality of perforations therein configured to allow the gas to escape from the tube;
- and
- at least one flange, wherein the filter bag includes a substantially rigid mouth seated against the at least one flange.
1 more element
Apparatus for separating gas from a solution containing gas and water in a well, comprising:
- a filter bag having an open end allowing the solution to be received under hydrostatic pressure into the interior of the filter bag, the filter bag including a filtering material configured to separate the gas from the water;
- a tube sleeved over the bag, the tube having an open end into which the filter bag may be received, and plurality of perforations therein configured to allow the gas to escape from the tube;
- and
- an outer casing configured to be coupled with a gas pipe for removing a gas from the well, the outer casing surrounding and being spaced radially outward from the tube to define an outer chamber in which gas passing through the filter bag is accumulated for delivery to the gas pipe.
1 more element
A wellbore tool, comprising:
- a perforated intake tube configured to receive a solution containing gas and water within a well;
- a perforated inner tube attached to the perforated intake tube for receiving the solution from the intake tube, the perforated inner tube defining an inner chamber;
- a filter bag lining the inner chamber within the perforated inner tube, the filter bag including filtering material for separating the gas from the water;
- and
- a casing surrounding the perforated inner tube and defining an outer chamber in which the gas separated by the filter bag is received,
- wherein each of the perforated intake tube, the perforated inner tube, and the casing includes a flange, and the flanges are stacked and fastened together.
3 more elements
A wellbore tool, comprising:
- a perforated intake tube configured to receive a solution containing gas and water within a well;
- a perforated inner tube attached to the perforated intake tube for receiving the solution from the intake tube, the perforated inner tube defining an inner chamber;
- a filter bag lining the inner chamber within the perforated inner tube, the filter bag including filtering material for separating the gas from the water, the filter bag being configured to be held against the inner tube by hydrostatic pressure and removable from the inner tube through the perforated intake tube;
- and
- a casing surrounding the perforated inner tube and defining an outer chamber in which the gas separated by the filter bag is received.
2 more elements
A wellbore tool, comprising:
- a perforated intake tube configured to receive a solution containing gas and water within a well;
- a perforated inner tube attached to the perforated intake tube for receiving the solution from the intake tube, the perforated inner tube defining an inner chamber and having an annular flange;
- a filter bag lining the inner chamber within the perforated inner tube, the filter bag including filtering material for separating the gas from the water;
- and
- a casing surrounding the perforated inner tube and defining an outer chamber in which the gas separated by the filter bag is received, the casing including an annular flange,
- wherein the annular flange of the perforated inner tube and the annular flange of the casing are secured together.
3 more elements
Dependencies are inferred from the claim text.