Process for the thermo-hydraulic control of gas hydrates
December 19, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesChemical process for backsurging fluid through well casing perforations Well treating process for chemically heating and modifying a subterranean reservoir Method for production of hydrocarbons from hydrates Acidizing with chemically heated weak acid Continuous process of hydraulic fracturing with foam Inhibition of hydrate formation Gas hydrate inhibition Process for the dewaxing of producing formations Process for delaying the formation and/or reducing the agglomeration tendency of hydrates Method for controlling clathrate hydrates in fluid systems InventorsAssigneeApplicationNo. 995141 filed on 12/19/1997US Classes:166/263, Cyclic injection then production of a single well137/13, Affecting flow by the addition of material or energy166/300, Chemical inter-reaction of two or more introduced materials (e.g., selective plugging or surfactant)166/302, Heating, cooling or insulating166/309, Producing foam or gas in well by foaming or gas producing material166/310, Entraining or incorporating treating material in flowing earth fluid166/312, Liquid introduced from well top166/357, Separator166/371, Including non-expulsive material placed in well166/401, Injecting a gas or gas mixture210/696, Preventing, decreasing, or delaying precipitation, coagulation or flocculation507/90, PREVENTING CONTAMINANT DEPOSITS IN PETROLEUM OIL CONDUITS507/216, Hydroxyalkylcellulose (e.g., HEC, etc.)507/277, Inorganic component is soluble in the well treating medium507/927, WELL CLEANING FLUID585/950Prevention or removal of corrosion or solid depositsExaminersPrimary: Suchfield, George A.Attorney, Agent or FirmInternational ClassesE21B 043/22E21B 043/24 E21B 043/34 Foreign Application Priority Data1997-10-17 BRAbstractA process for the thermo-hydraulic control of gas hydrates in subsea production and injection wells as well as pipelines which transport liquid or gaseous hydrocarbons is described, the process making use of a Nitrogen Generating System foamed or in solution. The control may signify the prevention of the formation of the gas hydrates or the dissolution of the gas hydrate plug already formed. Under conditions of use designed for the prevention of the formation of gas hydrates the SGN fluid prevents the thermal conditions leading to the gas hydrate plugs. Under conditions of use designed to dissolve the already formed gas hydrate plugs, the SGN fluid alters the thermo-hydraulic conditions which favor the gas hydrate plugs, so that they are dissolved and return to the water+gas phase.Other References
Field of SearchAffecting flow by the addition of material or energyCyclic injection then production of a single well Separating outside of well Liquid material injected Injected fluid comprises water and material other than inorganic gas Material placed in pores of formation to treat resident fluid flowing into well Chemical inter-reaction of two or more introduced materials (e.g., selective plugging or surfactant) Heating, cooling or insulating Placing fluid into the formation Producing foam or gas in well by foaming or gas producing material Entraining or incorporating treating material in flowing earth fluid Liquid introduced from well top Separator Including non-expulsive material placed in well Injecting a gas or gas mixture CO2 or carbonated gas Preventing, decreasing, or delaying precipitation, coagulation or flocculation PREVENTING CONTAMINANT DEPOSITS IN PETROLEUM OIL CONDUITS Hydroxyalkylcellulose (e.g., HEC, etc.) Inorganic component is soluble in the well treating medium WELL CLEANING FLUID HYDRATE OR PRODUCTION THEREOF MISCELLANEOUS PROCESS, E.G., INDETERMINATE MODIFICATION OF A PROPERTY, STORAGE, TRANSPORTATION, ETC. Prevention or removal of corrosion or solid deposits |
| ||||||||||||||
