Supply Or Recovery Of Stored Fluid By Separate Fluid Patents (Class 405/59)
  • Patent number: 11296338
    Abstract: Salt caverns with an inner container for storing electrical energy as a flow battery are provided. The salt caverns with an inner container for storing electrical energy as a flow battery comprises an air bag, a second pipeline and a first pipeline. The airbag is located in an underground salt cavern, the salt cavern is full of brine, and a liquid electrolyte is stored in the airbag. One end of the second pipeline is connected with the airbag while the other end thereof is located on the ground, and the second pipeline is used for filling the liquid electrolyte into the airbag. The first pipeline sleeves the second pipeline, one end of the first pipeline is connected with a shaft inlet of the salt cavern while the other end thereof is located on the ground, and the first pipeline is used for discharging the brine from the salt cavern.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: April 5, 2022
    Inventors: Hongling Ma, Chunhe Yang, Yue Han, Xilin Shi, Xiaopeng Liang, Kai Zhao, Yuhao Zhang, Yinping Li, Tongtao Wang, Hongwu Yin
  • Patent number: 10836579
    Abstract: A gas storage system for storing compressed gas, and method for constructing the system, are described. The system includes a borehole having a first borehole portion and a second borehole portion. An inflatable balloon is arranged within the second borehole portion. An upper support member, mounted on top of the inflatable balloon, is configured for anchoring the inflatable balloon to a sealing material filling the first borehole portion. A lower support member is arranged at the bottom of the inflatable balloon. The system includes an inlet gas pipe for filling the inflatable balloon from the gas compressing system and an outlet gas pipe for releasing the compressed gas. A compacted filling material is placed within a gap formed between the inflatable balloon, the upper support member, the lower support member, and an inner surface of the second borehole portion. One or more filling material pipes extend along the borehole to the gap for providing a filling material thereto.
    Type: Grant
    Filed: October 29, 2017
    Date of Patent: November 17, 2020
    Assignee: AUGWIND, LTD.
    Inventor: Or Yogev
  • Patent number: 10569956
    Abstract: An apparatus comprises a separator, a compressor, a mixer and a pump. The separator operates on an input gas mixture comprising carbon dioxide gas and one or more other gases, providing a separated carbon dioxide gas output. A compressor compresses the separated carbon dioxide gas output, providing a second output comprising at least one of gaseous carbon dioxide and liquid carbon dioxide. A mixer mixes the second output with liquid water under pressure to provide a third output comprising: at least one of liquid carbon dioxide and gaseous carbon dioxide; and water with dissolved carbon dioxide. A pump pumps the third output into an underground structure such that components of the third output react with available rock surfaces to form stable carbonates.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: February 25, 2020
    Inventors: Marvin S Keshner, Erik Garth Vaaler
  • Patent number: 9664441
    Abstract: Underwater gas pressurization units and liquefaction systems, as well as pressurization and liquefaction methods are provided. Gas is compressed hydraulically by a rising pressurization liquid that is separated from the gas by a water immiscible liquid layer on top of an aqueous salt solution. Tall vessels are used to reach a high compression ratio that lowers the liquefaction temperature. The pressurizing liquid is delivered gravitationally, after gasification, transport to smaller water depths and condensation. Cooling units are used to liquefy the compressed gas. A cascade of compression and cooling units may be used with sequentially higher liquefaction temperatures, which allow eventual cooling by sea water. The pressurizing liquid, dimensions of the vessels, the delivery unit, the coolants and the implementation of the cooling units are selected according to the sea location, to enable natural gas liquefaction in proximity to the gas source.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: May 30, 2017
    Assignee: S.G.B.D. TECHNOLOGIES LTD.
    Inventor: Alexander Brodt
  • Patent number: 9656807
    Abstract: A method of pad gas management in an underground storage volume including storing a first compressible fluid, determining a transient minimum operating pressure (Ptrans), measuring the pressure (Pact), removing at least a portion of the first compressible fluid, concurrently, introducing an incompressible fluid, thereby producing a transient pressure condition controlled by the flow rate of the incompressible fluid, such that Ptrans<Pact. The method may also include a length of casing, permanently cemented into the surrounding rock formations, with a final cemented casing shoe defining the practical endpoint at an approximate depth (Dcasing), determining a transient pressure gradient (Gtrans) for the underground storage volume, wherein Ptrans<Dcasing×Gtrans. The maximum removal of the first compressible fluid is controlled such that Pmin<Pact, and wherein the transient pressure condition has a duration (D) of less than 7 days, more preferably less than 5 days.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: May 23, 2017
    Assignee: Air Liquide Large Industries U.S. LP
    Inventors: Ronald Strybos, Azadeh Dony
  • Patent number: 9187246
    Abstract: A method of introducing a CO2 composition into an aquifer for storage of CO2 therein, said method comprising injecting CO2 in a supercritical state into said aquifer at one or multiple first vertical positions; and withdrawing brine solution from said aquifer at one or multiple second vertical positions; wherein any one of said first vertical positions is distinct from any one of said second vertical positions is disclosed. An arrangement for introducing a CO2 composition into an aquifer is also disclosed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 17, 2015
    Assignee: STATOIL PETROLEUM AS
    Inventors: Lars Høier, Bamshad Nazarian
  • Patent number: 9084358
    Abstract: A system for pressure compensation, e.g., for pressure compensation in a subsea environment, may include a fluid filled enclosure surrounding a cavity, a first pressure compensator having a first chamber and a second chamber, the first chamber being in fluid communication with the cavity, and a second pressure compensator having a third chamber and a fourth chamber, wherein the third chamber of the second pressure compensator is in fluid communication with the second chamber of the first pressure compensator.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: July 14, 2015
    Assignee: SIEMENS OIL AND GAS OFFSHORE AS
    Inventor: John Arthur Dawes
  • Patent number: 8833708
    Abstract: A support structure for providing internal vertical support within an underground water storage system, including a column member, a foot spreader module adapted for fitting to a lower end of the column member to support the column member in a substantially vertical orientation on an underlying surface, and a head spreader module adapted for fitting to an upper end of the column member to support an overlying surface relative to said underlying surface, whereby the column member with said foot and head spreader modules fitted thereto forms a column support for supporting a ground surface above the water storage system.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: September 16, 2014
    Inventor: Jack McKenzie Droomer
  • Patent number: 8714874
    Abstract: Apparatus for solution mining and gas storage in a salt cavern formed by solution mining comprises a flow diverting conduit string is provided in fluid communication with two or more concentric conduits within the single main bore, with at least one lateral opening from an internal passageway with an outer annular passageway communicating with the surface under a single valve tree. Flow control devices, flow diverters and/or isolation conduits can be inserted into the flow diverting conduit string, enabling a dissolution zone in the salt cavern to be varied to control the shape of the cavern. Furthermore the flow diverting conduit string used to form the cavern can also be used for dewatering and gas storage.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: May 6, 2014
    Inventor: Bruce A. Tunget
  • Patent number: 8454268
    Abstract: Methods and systems for gas sequestration are provided. The systems include a porous storage reservoir containing a dense fluid; a first tubing string, configured to provide and inject a gaseous emissions (GE) stream at or near the top of the porous storage reservoir above the base portion of the porous storage reservoir; and a second tubing string configured to withdraw the dense fluid from the base portion of the porous storage reservoir. In some embodiments, the first and second tubing strings may be encased in a single well bore and may include measurement and control equipment for pressure management of the injection locations. The withdrawn dense fluids may be re-injected into an overlying porous reservoir or may be sent to the surface for treatment. Methods are provided for injection of GE and withdrawal of dense fluids for safe, long term gaseous sequestration of significant portions of carbon dioxide (CO2) and associated gases (gaseous emissions, GE).
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: June 4, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventor: John R. Wilkinson
  • Publication number: 20130101352
    Abstract: The present invention is directed to a method for sequestration of carbon dioxide, said method comprising the steps of injecting a waste gas into a subsurface containment region, providing a filter associated with a separation well for separating a constituent gas from the waste gas, the separation well being in communication with the subsurface containment region and evacuating at least a portion of the waste gas through the separation well for filtered separation of the constituent gas from the waste gas.
    Type: Application
    Filed: October 21, 2011
    Publication date: April 25, 2013
    Inventor: MARC VIANELLO
  • Publication number: 20110236134
    Abstract: The present invention provides for the utilization of a cushion gas in compressed air energy storage (CAES). In particular, the use of carbon dioxide (CO2) as the cushion gas has been provided. Using CO2 as the cushion gas enhances the effectiveness of the CAES by allowing greater amounts of compressed air to be stored and extracted.
    Type: Application
    Filed: October 1, 2010
    Publication date: September 29, 2011
    Applicant: The Regents of the University of California
    Inventor: Curtis M. Oldenburg
  • Publication number: 20110229267
    Abstract: An underground porosity water storage reservoir minimizes the impacts on surface uses of the reservoir site. Furthermore, a method of operating an underground porosity storage reservoir minimizes damage to the reservoir due to injecting sediment-laden water or water that is chemically incompatible with the porous material in the underground reservoir. The underground porosity water storage reservoir reduces temperature impacts on surface waters due to the discharge of stored water. A method of using the porosity storage reservoir to minimize adverse temperature impacts when discharging water to a surface body is disclosed.
    Type: Application
    Filed: May 16, 2011
    Publication date: September 22, 2011
    Applicant: PS Systems Inc.
    Inventors: Stanley R. Peters, Donald O. Summers
  • Patent number: 7921920
    Abstract: A well intake with an anti-coning end portion provides for withdrawal of fluid hydrocarbons, such as oil and gas, from pockets that contain an underlying layer of water. The anti-coning end portion may include a tube having an upwardly turned or upwardly facing end or mouth, a tube having a non-circular cross section, a tube having one or more baffles, or a combination thereof, in order to prevent or block the formation of cyclonic or swirling flow patterns of water in the vicinity of the well intake.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: April 12, 2011
    Inventor: Ian Kurt Rosen
  • Patent number: 7901158
    Abstract: An underwater oil storage method, which includes the steps of: a) excavating a cellar in the ground earth and constructing a wall structure in the cellar to form a water pool, b) setting an oil tank in the water pool, c) supplying a predetermined amount of water to the water pool, and d) filling the oil to be stored into the oil tank and regulating the amount of water in the water pool subject to the amount of storage oil stored in the oil tank for enabling water in the water pool to support the oil tank and storage oil in the oil tank and to keep the oil tank in balance by means of the physical characteristic that the specific gravity of the storage oil is lower than water.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 8, 2011
    Inventor: Zuei-Ling Lin
  • Publication number: 20100170674
    Abstract: A process and apparatus of separating CO2 gas from industrial off-gas source is provided in which the CO2 containing off-gas is introduced deep within an injection well. The CO2 gases are dissolved in the liquid within the injection well while non-CO2 gases, typically being insoluble in water or brine, are returned to the surface. Once the CO2 saturated liquid is present within the injection well, the injection well may be used for long-term geologic storage of CO2 or the CO2 saturated liquid can be returned to the surface for capturing a purified CO2 gas.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 8, 2010
    Applicants: Savannah River Nuclear Solutions, LLC, Clemson University Research Foundation
    Inventors: Gerald Blount, Alvin A. Siddal, Ronald W. Falta
  • Publication number: 20100129155
    Abstract: The current invention provides processes and apparatuses for introducing slurry into underground geological formations thereby disposing of the slurry, while also sequestering carbon dioxide and collecting methane from the slurry.
    Type: Application
    Filed: April 25, 2008
    Publication date: May 27, 2010
    Applicant: ENERTECH ENVIRONMENTAL, INC.
    Inventor: Raymond J. Kearney
  • Publication number: 20090010714
    Abstract: In the past, “compensated” salt caverns have operated with a compensating liquid, such as brine to displace a stored liquid, such as crude oil, when the stored liquid is needed on the surface. Virtually all of the stored liquid in a compensated salt cavern can be expelled from the salt cavern when it is filled with the compensating liquid. In the past, “uncompensated” salt caverns have been used to store gases, such as natural gas. Uncompensated caverns operate without any compensating liquid; instead they rely on pressure. Some of the stored gas (cushion gas) must always be left in an uncompensated salt cavern. This invention breaks with convention and uses a compensating liquid in a salt cavern to store gases which is a technique believed to be previously unknown. “Cushion gas” is not required because the compensating liquid displaces virtually all of the gas in the salt cavern.
    Type: Application
    Filed: September 12, 2008
    Publication date: January 8, 2009
    Applicant: CONVERSION GAS IMPORTS, L.P.
    Inventor: William M. Bishop
  • Patent number: 7258508
    Abstract: A gas storage well with a tubing string that is disposed within a wellbore communicating an underground storage cavern with the surface. A surface controlled subsurface safety and flow control system is provided within the wellbore so that all flow into or out of the well can be shut down rapidly in the event of an emergency. The safety and flow control system features a dual opening-style packer element that provides an annulus seal between the surrounding casing and the tubing string and between the casing and a pup joint that is located within the annulus. Both the tubing string and the pup joint contain surface controlled subsurface safety valves that are capable of quickly shutting off flow through both the flowbore and the annulus. Each valve can be opened or closed independently of the other.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: August 21, 2007
    Assignee: Baker Hughes Incorporated
    Inventors: Allan R. McCoy, Darrell Melear
  • Patent number: 6997643
    Abstract: A system for offloading LNG (liquified natural gas) from a tanker (26) in shallow waters, for regasing, or heating the offloaded LNG to produce gaseous hydrocarbons, or gas, for pressurizing the gas, and for flowing the gas to an onshore station (56), includes a structure that is fixed to the sea floor and projects above the sea surface and aids in mooring the tanker. In one system, the structure that is fixed to the sea floor is a largely cylindrical tower (12) with a mooring yoke (20) rotatably mounted on its upper end. A floating structure (14) such as a barge that weathervanes, has a bow end pivotally connected to a distal end of the yoke, so the barge is held close to the tower but can drift around the tower with changing winds, waves and currents. The tanker is moored to the barge so the barge and tanker form a combination that weathervanes as a combination.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: February 14, 2006
    Assignee: Sbm-Imodco Inc.
    Inventors: Hein Wille, Jack Pollack
  • Patent number: 6984316
    Abstract: The present invention relates to a device for creating a reaction zone in an aquifer, for circulating and purifying ground and raw water, in particular for tap water use, which aquifer comprises satellite wells and at least one extraction well wherein each satellite well comprises at least two, essentially vertical water conducting sections separated from each other in substantially vertical longitudinal direction, and having at least two geohydrologic zones, whereby said zones are arranged to alternating emit water to the surrounding, and receive water coming from the outside surrounding, respectively, whereby adjacent wells are arranged for opposite flows so that substantially horizontal flows are obtained in a water leading layer, in which layer the wells have been placed between adjacent wells, and whereby the water of at least one section is arranged to be pumped in one direction from below and upward, and at least in one vertical section, form above and downward, respectively, and to be lead out through
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: January 10, 2006
    Assignee: Swiss Investment and Trust Corporation
    Inventor: Dan Tannenberg
  • Patent number: 6979147
    Abstract: A system for offloading LNG (liquified natural gas) from a tanker (26) in shallow waters, for regasing, or heating the offloaded LNG to produce gaseous hydrocarbons, or gas, for pressurizing the gas, and for flowing the gas to an onshore station (56), includes a structure that is fixed to the sea floor and projects above the sea surface and aids in mooring the tanker. In one system, the structure that is fixed to the sea floor is a largely cylindrical tower (12) with a mooring yoke (20) rotatably mounted on its upper end. A floating structure (14) such as a barge that weathervanes, has a bow end pivotally connected to a distal end of the yoke, so the barge is held close to the tower but can drift around the tower with changing winds, waves and currents. The tanker is moored to the barge so the barge and tanker form a combination that weathervanes as a combination.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: December 27, 2005
    Assignee: Single Buoy Moorings, Inc.
    Inventors: Hein Wille, Jack Pollack
  • Patent number: 6932121
    Abstract: A method for offloading and storage of liquefied compressed natural gas into a salt dome by using inserting displacement gas with a pressure greater than a pressure of the liquefied compressed natural gas and a temperature of from about 80 degrees Fahrenheit to about 120 degrees Fahrenheit into a created cavern in the salt dome. The liquefied compressed natural gas is offloaded from the vessel to the storage cavern, wherein the liquefied compressed natural gas is at a pressure of from about 750 psi to about 1100 psi and a temperature of from about ?80 degrees Fahrenheit to about ?110 degrees Fahrenheit. The liquefied compressed natural gas is mixed with gas vapor in the storage cavern, wherein the gas vapor in the storage cavern is at a geostatic temperature and at a pressure lower than a pressure of the liquefied compressed natural gas.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 23, 2005
    Assignee: ATP Oil & Gas Corporation
    Inventor: Robert Magee Shivers, III
  • Patent number: 6637977
    Abstract: A compressed gas storage tank 10 utilizes a rock-bed cavity 11 in which a bentonite slurry is fed into an underground cavity 11 formed in a rock-bed, a forcibly fed compressed gas is stored in the rock-bed cavity in a state in which the compressed gas is loaded with a pressure load of the bentonite slurry from the underside of the compressed gas, the bentonite slurry in the rock-bed cavity 11 is of a dual layer structure consisting of an upper layer composed of a light bentonite slurry 30 mixed with a filling-up material invading into and filling up a void and a crack formed in an inner wall surface of the rock-bed cavity and a lower layer composed of a heavy bentonite slurry 13 mixed with a high specific gravity fine powder as a load condition material.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: October 28, 2003
    Assignees: Masao Hayashi, Asahi Engineering Co., Ltd.
    Inventors: Masao Hayashi, Hiroyuki Nishimura
  • Patent number: 6517286
    Abstract: A system for handling liquified natural gas (LNG) wherein (a) the LNG is delivered into a subterranean formation such that the LNG absorbs heat energy from the subterranean formation and is thereby converted to a gas product and (b) the gas is then produced from the subterranean formation. The subterranean formation is preferably a depleted offshore gas formation having an offshore production platform which is modified to receive LNG from marine transport vessels which are unloaded at an offshore receiving station.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: February 11, 2003
    Assignee: Spectrum Energy Services, LLC
    Inventor: Raymond R. Latchem
  • Patent number: 6367547
    Abstract: In accordance with the present invention, a downhole separation tool is provided which utilizes a downhole separation chamber with a series of fluid regulators responsive to a formation fluid and constituent components for separate desirable formation yields from the less desirable yields prior to lifting the fluids to the surface. The separation chamber has an input for the formation fluid, a production output, and a disposal output, in a tree arrangement according to the density order of the fluids in the separation chamber. The input flow regulator is coupled to the separation chamber input, the production regulator is coupled to the production output, and the disposal regulator is coupled to the disposal output. Each of the regulators are responsive to a fluid density of the formation fluid, first constituent and remainder constituent, accordingly, to regulate the flow of the respective fluid.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: April 9, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Darrin N. Towers, Kenneth L. Schwendemann
  • Patent number: 6137028
    Abstract: A method for the disposal of oil field wastes contaminated with naturally occurring radioactive materials (NORM). The method includes the steps of: drilling a pair of wells which intersect in a salt formation, providing a slurry containing NORM wastes and a carrier liquid, injecting the slurry through one of the wells into the salt formation wherein the NORM wastes settle, and removing the carrier liquid from the other one of the wells. One carrier liquid, fresh water, dissolves the salt formation to form and enlarge a cavern for receiving the NORM wastes. The quantities of carrier liquid removed from the salt formation are disposed of by injection into permeable formation remote from the salt formation.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: October 24, 2000
    Inventor: Daniel Wayne Snow
  • Patent number: 5794698
    Abstract: A system and method for removing light non-aqueous liquids via a wellbore from at least a water-saturated subterranean zone using an oleophilic absorbent wick by positioning the wick in a wellbore extending from the surface through at least a portion of the subterranean water-saturated zone; reducing the pressure in the wellbore and removing vaporized light non-aqueous liquids from the wellbore.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: August 18, 1998
    Assignee: Atlantic Richfield Company
    Inventor: Charles T. Roberts
  • Patent number: 5722792
    Abstract: A method of putting under gas a saline cavity 3 for storing a gaseous substance, the cavity being formed by being washed out in rock salt and being filled with brine 5 once the washing-out step has been completed, the cavity includes a bottom 31 and a roof 30, a well 1 drilled for washing-out purposes opening out in the roof and putting the saline cavity into communication with the surface, the well also serving as an injection well for inserting the gaseous substance to be stored. The method includes a step of drilling an associated dewatering well 4 from the surface in the proximity of the injection well, the dewatering well meeting the saline cavity close to the bottom thereof so as to dewater the brine from the cavity through said dewatering well as the gaseous substance is injected into the cavity via the injection well.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: March 3, 1998
    Assignee: Societe Francaise de Stockage Geologique- Geostock
    Inventor: Jean-Marc Morisseau
  • Patent number: 5540521
    Abstract: An aqua culture facility and method using a pneumatic pump for displacement of water or other liquid located in a confined space having rigid bottom and side walls which form an interior surface of the space, with a flexible liner having the same contour as the space in which the liquid is confined. The confined space is a culture chamber and open at the top side, such as a fish pond. The flexible liner is comprised of two or more flexible membranes which are in sealing engagement at their edge portions to form a sealed compartment. There is an air inlet-outlet means through which gas or liquid can be introduced to inflate and then to exhaust the air from the sealed compartment. The flexible liner has a flexible membrane in contact with the rigid bottom and side walls of the confined space and is larger then the interior surface of the confined space. The placed flexible membrane liner is covered with water and seeded with organisms to create the culture chamber.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: July 30, 1996
    Inventor: Robert W. Biggs
  • Patent number: 5518341
    Abstract: The present invention concerns a system for providing storage for hydrocarbons produced at an offshore production facility. A tank assembly having inner and outer tanks defining an annular chamber therebetween and the inner tank defining an inner chamber, has a piling projection extending from one end thereof. A first piping system is connected to the annular chamber and input piping system connected to the inner chamber and an output piping system connected to the inner chamber. The outer chamber is flooded to provide ballast for the system during and after placement of the piling into the soil beneath a platform.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: May 21, 1996
    Assignee: Texaco Inc.
    Inventor: Allen J. Verret
  • Patent number: 5511905
    Abstract: The subterranean storage facility includes a subterranean cavern forming an underground cavity in which is disposed an immiscible displacing liquid. A plurality of concentric pipes extend from the surface into the cavity. As a cold fluid at a sub-zero temperature is passed down a first flow bore formed by the concentric pipes, the immiscible displacing fluid is passed in heat exchange relationship up a second flow bore formed by the concentric pipes. The cold fluids are then stored within the cavity at a temperature and pressure consistent for safe storage.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: April 30, 1996
    Assignee: PB-KBB, INC.
    Inventors: William M. Bishop, Hugh D. Kaiser
  • Patent number: 5484231
    Abstract: A process for obtaining decomposition products from a slurry of municipal waste by use of a geothermal reservoir. The process comprises placing the slurry of municipal waste into a geothermal reservoir; sealing the opening of the geothermal reservoir; and retorting the municipal waste slurry in the geothermal reservoir for a time sufficient to liberate methane, ammonia, urea, nitrites, nitrates, and phosphates from said slurry. Thereafter, the liberated products are removed from the geothermal reservoir and separated.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: January 16, 1996
    Assignee: Mobil Oil Corporation
    Inventors: William L. Cannan, Alfred R. Jennings, Jr.
  • Patent number: 5433553
    Abstract: A method for Refuse Disposal in Solution-Mined Salt Cavities is described. Firstly, crush municipal refuse to a particulate size of less than one inch. Secondly, compact a mixture of particulate refuse and brine into cakes less than one inch in thickness at densities in excess of 77 pounds per cubic foot. Thirdly, mix the cakes with brine to form a slurry with a minimum volume ratio of 2 portions brine to 1 portion cakes. Fourthly, inject the slurry into a brine filled salt cavity, whereby the cakes, being denser than the brine, settle to the bottom of the salt cavity.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: July 18, 1995
    Assignee: Arthur G. A. Pearson
    Inventors: Arthur G. A. Pearson, Arvid Alseth
  • Patent number: 5383746
    Abstract: A safety device is provided for completely sealing off an underground liquified gas storage cavity when a dangerous situation arises, whereby all links between the storage cavity and the surface, including the vent link between the gas phase and the surface can be closed off by forming water plugs in the storage cavity. The water plugs are created automatically from existing reserves of water in the underground cavity. Maximum overall safety is achieved by not installing any important equipment in the underground storage cavity, by standardizing all links other than the vent link, and by minimizing the number of functional links required. Every standard link connects the gaseous or liquid phase of the gas to the surface via a side tube running downwards into a well containing water linked to the main tube which returns to the surface.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: January 24, 1995
    Inventor: Jean-Marie Dufourneaud
  • Patent number: 5310282
    Abstract: Used drilling mud, and other high solids oilfield waste which has been contaminated with hydrocarbons, is pumped downhole into a salt cavity where the mud and hydrocarbons separate with the mud gravitating to the bottom of the cavity and the hydrocarbons rising toward the surface of the ground. Brine separates the accumulated hydrocarbons from the residual mud. The brine or the hydrocarbons is selectively removed for sales while additional water or contaminated mud is added to the system as may be required. The salt cavity preferably is located in a geographical area wherein anhydride ledges are formed therewithin upon formation of the cavity. The resultant ledges form baffle plates that coalesces the separated particles of oil and enhance formation of the separated hydrocarbon.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: May 10, 1994
    Inventor: Thomas A. Voskamp
  • Patent number: 5173007
    Abstract: Method and apparatus for the in-line blending of a crude oil with an aqueous hydrocarbon emulsion, such as an aqueous emulsion formed in-situ in a cavern in a salt dome, wherein the crude oil and aqueous crude oil emulsion are separately fed to a dynamic in-line blender wherein the crude oil is formed into a flowing crude oil shear curtain and wherein the stream of the aqueous crude oil emulsion is charged to the interior of the flowing crude oil shear curtain, whereby the aqueous emulsion is impacted upon and fragmented by the crude oil of the flowing crude oil shear curtain to form a flowing suspension of finely divided aqueous emulsion particles in the crude oil.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: December 22, 1992
    Assignee: Serv-Tech, Inc.
    Inventor: Richard W. Krajieck
  • Patent number: 5147147
    Abstract: A method for the removal of water or aqueous liquids from the sump of an underground cavity, especially a cavern, is based on providing a process in which a water-miscible organic liquid is added to the sump, and then the mixture formed in this way is extracted from the cavity.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: September 15, 1992
    Assignee: Energieversorgung Weser-Ems AG
    Inventors: Harald Peterson, Jurgen Martens, Werner Harms, Uwe Kramer
  • Patent number: 5129759
    Abstract: The offshore facility and terminal includes a plurality of underground salt caverns located beneath the ocean floor. An offshore platform is located above the caverns and includes a flow line to a single point mooring for connection to a supertanker. A well extends from the platform into the underground salt caverns for the flow of hydrocarbons. The hydrocarbons are stored in the underground salt caverns with an immiscible displacing fluid, such as brine. The hydrocarbons and brine are immiscible and have different densities such that the brine settles at the bottom of the underground cavern. Another well extends from the underground cavern to a displacing fluid reservoir. This reservoir is a brine pond located in a depression in the ocean floor. The brine is pumped to and from the brine pond and into the underground cavern to assist in the off-loading and removal of the hydrocarbons.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: July 14, 1992
    Assignee: PB-KBB, Inc.
    Inventor: William M. Bishop
  • Patent number: 5052856
    Abstract: A method for underground storage of a gas is disclosed in which the stored gas or top gas is physically separated from the cushion gas to avoid undesired intermixing of the two gases. This enables a less expensive cushion gas to be used resulting in a significant cost savings in the development and use of an underground storage cavern. The gas separation can be accomplished by dividing the cavern into two portions using a flexible membrane attached at its periphery to the walls of the cavern, installing a plurality of balloons inflated with the cushion gas in the cavern or inflating a single large bladder in the cavern with the cushion gas. With additional separation of the cavern into multiple portions, a plurality of gases can be simultaneously stored in a single cavern.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: October 1, 1991
    Inventor: M. Rasin Tek
  • Patent number: 5022787
    Abstract: Disclosed is a method of returning geothermal gases discharged from geothermal plants to the underground together with waste water through a return well, characterized in that the apparent velocity of waste water V.sub.eo relative to the return well is equal to or more than 1 m/s and the range of the apparent velocity of waste water V.sub.eo and of an apparent velocity of the geothermal gases V.sub.go is regulated to satisfy the following equation:V.sub.go <1.33V.sub.eo -0.41.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: June 11, 1991
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Mutsuo Kuragasaki, Mamoru Tahara, Shunsei Tazaki
  • Patent number: 5013183
    Abstract: The invention relates to an apparatus for drawing off ground air under the foundation slab of a house. A tube is placed in an excavation made some meters away from the house. The bottom end part of the tube is downwardly open and is provided with a plurality of rows of holes through which a blower, arranged inside the pipe, draws air from the ground. The ground air which is withdrawn departs via an evacuation duct opening out above the ground surface. A lid is arranged airtight at the upper end of the tube. The evacuation duct connects up with the tube in an area above the blower.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: May 7, 1991
    Inventors: Bengt Eriksson, Bertil Clavensjo
  • Patent number: 4991624
    Abstract: Safety valves and control apparatus for generally inaccessible fluid storage facilities wherein a closure mechanism may be attached to an access conduit at an accessible control location and inserted with the conduit into a casing or outer conduit, which closure mechanism may be actuated by control mechanism from the accessible control location to open or close the access conduit or the annulus between the access conduit and the casing, as desired, to permit or interrupt fluid flow, respectively therein. In an underground storage reservoir with access facilities including an outer casing and an inner conduit, separate closure mechanisms may be attached to the inner conduit and inserted therewith along and within the casing to the reservoir, and may be actuated independently to open or close the annulus between the outer casing and inner conduit, and the inner conduit, to thereby control fluid flow in either or both, as desired.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: February 12, 1991
    Assignee: Safety Services, Inc.
    Inventors: Joe R. Fowler, Robert J. Pirkle, Jr.
  • Patent number: 4976569
    Abstract: Subterranean cavities which can be filled with water or brine are also used for safely depositing ecologically harmful waste. In order to introduce the waste, which must not come in contact with the water or brine, a liquid which is not miscible with water and is specifically heavier than water or brine is let in below the water or brine, where it forms a layer, and the waste is introduced into this liquid via a pipeline, whereby the waste or the mixtures of waste and binding agents must be specifically heavier than the liquid. The displaced water or brine is upwardly removed.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: December 11, 1990
    Assignee: NUKEM GmbH
    Inventors: Georg Braehler, Benno Ganser, Paul-Gerhard Maurer
  • Patent number: 4949749
    Abstract: Safety valves and control apparatus for generally inaccessible fluid storage facilities wherein a closure mechanism may be attached to an access conduit at an accessible control location and inserted with the conduit into the storage facilities, which closure mechanism may be actuated by control mechanism from the accessible control location to open or close the access conduit at the remote storage facilities to permit or interrupt fluid flow, respectively. In an underground storage reservoir with access facilities including an outer casing and an inner conduit, separate closure mechanisms may be attached to the inner conduit and inserted therewith along and within the casing to the reservoir, and may be actuated independently to open or close the annulus between the outer casing and inner conduit, and the inner conduit, to thereby control fluid flow in either or both, as desired.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: August 21, 1990
    Assignee: Safety Services, Inc.
    Inventors: Joe R. Fowler, Robert J. Pirkle, Jr.
  • Patent number: 4919822
    Abstract: A method of geologically confining toxic industrial waste, the method consisting of: using a cavity (1) previously leached from a mass of rock salt (2), the cavity being initially filled with brine (5); incorporating the waste in a pumpable waste-containing mixture (10) of density greater than the density of the brine and suitable for setting once put into place; inserting a predetermined quantity of a buffer liquid (7) into the bottom of the cavity by means of a dip tube (8) positioned in a well (4) and in communication with the surface (3), the buffer liquid being immiscible both with the brine and with the waste-containing mixture, the density of the buffer liquid lying between the density of the brine and the density of the waste-containing mixture, and the buffer liquid including one or more halogen-containing solvents; inserting the waste-containing mixture into the cavity by the means of the dip tube while the bottom end of the dip tube is maintained within the previously inserted buffer liquid; and re
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: April 24, 1990
    Assignee: Geostock S.A.R.L. and ESYS S.A.
    Inventor: Alain Boulanger
  • Patent number: 4808029
    Abstract: A system for subterranean storage of energy comprises a lower and a higher cavern formed in a subterranean salt formation, both caverns being partially filled with salt solution, a gas supply for pressurizing a head space in each cavern, a first channel interconnecting the liquid filled portions of the caverns, a second channel interconnecting the pressurized head spaces, and a pumping-generating plant at the ground surface connected between two vertical branches of the first channel. The plant is operable for pumping liquid through the first channel from the lower to the higher cavern when supplied with energy, or for generating energy when driven by liquid flowing through the first channel from the higher to the lower cavern. The gas supply maintains a pressure equal or greater to the hydrostatic pressure differential between the liquid filled spaces in the caverns and also sufficient for driving the liquid from the lower cavern to the ground surface.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: February 28, 1989
    Inventor: Arnold W. J. Grupping
  • Patent number: 4732508
    Abstract: A safety device for a tube (8) for inserting or removing a liquid substance for storage in a storage facility in a cavity in a water-impregnated rock mass, said liquid being the liquid phase of a substance which is a gas at ordinary temperature, which liquefies under pressure, which has a density which is less than the density of water and which is immiscible with water, said liquefied gas being stored in said cavity under the liquid-gas equilibrium pressure applicable to the ambient temperature in the cavity, the safety device being constituted by a can (9) which is open at the top and which is disposed around the bottom end (81) of the tube to which it is applicable such that the bottom opening of the tube (8) is located near to the bottom of the can, the volume of the can being greater than the volume of the tube up to a height corresponding to the head of water necessary for reaching an equilibrium pressure with the cavity.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: March 22, 1988
    Assignee: Societe Francaise de Stockage Geologique-Geostock
    Inventor: Georges Berezoutzky
  • Patent number: 4701072
    Abstract: A draining well (2) extending downwardly from the bottom (3) of an underground cavity for storing liquefied gas under pressure has an upper portion (9) of large area and a lower portion (10) of smaller area. The volume of the upper portion is sufficient for filling a service tube (5) with water up to its hydrostatic equilibrium level. This enables the depth of the draining well to be reduced and thus makes such a storage facility cheaper to produce.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: October 20, 1987
    Assignee: Societe Francaise de Stockage Geologique - Geostock
    Inventor: Georges Berezoutzky
  • Patent number: 4626131
    Abstract: A storage system and method for storing a valuable liquid in a subterranean cavity with a displacing liquid such as brine. The valuable liquid, which normally has a density above or about that of the displacing liquid, is modified by dissolving therein small amounts of a light fluid such as alkanes and alkenes of up to 4 carbon atoms, hydrogen, nitrogen, carbon monoxide or combinations thereof. The amount of the light fluid dissolved in the stored liquid is sufficient to maintain the density of this phase below that of the displacing liquid so that the valuable liquid is stored over the displacing liquid.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: December 2, 1986
    Assignee: The Dow Chemical Company
    Inventors: David N. Glew, John S. McIntyre, Jeffrey F. Gilbert, deceased