Deutsche Texaco Aktiengesellschaft

Hoechst Aktiengesellschaft

Wacker-chemie Gmbh

Gunter Pusch

Mohammad Ranjbar

Rudolf Gedenk

Willibald Burger

Michael Geck

Karl-Heinz Gaida

Heinz Jurgen Klatt

Rudiger Meyn

Walter Frohlich

The invention relates to a method for stabilizing the gas flow in water-bearing natural gas deposits or reservoirs which produce at least 50 l of water per 1000 m,(Vn) of extracted natural gas. According to the method, a dispersion comprising the following components is injected into the water-bearing rock: A) an organosilicon compound as the dispersed phase; B) a hydrophilic dispersion agent, which can be mixed with water, and, if needed, C) a dispersing additive.

Method for stabilizing the gas flow in water-bearing natural gas deposits or reservoirs

The present invention relates to a method for reducing or completely stopping the water inflows from a deposit in at least a portion of a borehole for the extraction of oil and/or hydrocarbon gas, which borehole traverses a deposit, an aqueous solution of a copolymer being introduced, starting from the borehole, into that portion of the deposit in which the water inflows are to be reduced or stopped, and the borehole subsequently being put into service for the extraction of oil and/or hydrocarbon gas, the fluids present in the deposit coming into contact with said portion of the deposit containing the adsorbed copolymer, and the oil and/or hydrocarbon gas flowing through said portion of the deposit and reaching the borehole, while the passage of the deposit is reduced, wherein the aqueous solution contains a copolymer based on acrylamidoalkylenesulfonate, vinylacetamide and optionally further monomers.

Method for reducing or completely stopping the influx of water in

The present invention relates to a method for reducing or completely stopping the influxes of water of a deposit in at least a portion of a borehole for the extraction of oil and/or hydrocarbon gas, which traverses a deposit, a solution of a polymer being introduced, starting from the borehole, into that portion of the deposit in which the influxes of water are to be reduced or stopped, and the bore subsequently being put into service for the extraction of oil and/or hydrocarbon gas, the fluids present in the deposit coming into contact with said portion of the deposit containing the polymer and the oil and/or hydrocarbon gas flowing through said portion of the deposit and reaching the borehole, wherein the non-aqueous solution of a hydrophobic, water-insoluble polymer is introduced into the deposit and the polymer precipitates in the presence of the connate water of the deposit.

A method of recovering petroleum from an underground reservoir by employing an in-situ combustion at a pressure of at least 120 bar by the simultaneous injection of oxygen and water whereby the temperature is controlled in the range of 450.degree.-550.degree. C.

Method of recovering petroleum and bitumen from subterranean reservoirs

A method for the initiation of an in-situ combustion in an underground formation by injecting into the formation an ignition mixture containing an olefinic hydrocarbon or an unsaturated fatty acid, an organic peroxide and a heavy metal salt.

Method of initiating underground in-situ combustion

A method for starting a process to recover energy raw materials from a subterranean formation whereby igniters are injected into the upper region of the formation and inert gas is injected into the lower region of the formation, and thereafter an oxygen-containing gas is injected at a predetermined oxygen concentration and rate to initiate combustion, followed by increasing the oxygen concentration and/or rate of the injected gas to a maximum value.

Method for initiating an in-situ recovery process by the introduction of

Ignition mixture for initiating underground in-situ combustion

A method for consolidating an oil-bearing formation by the use of a consolidating material together with a combustion promoter whereby oxidation occurs upon the injection of an oxygen-containing gas, thereby affecting consolidation of the formation.

Growing community of inventors

Celle, Germany

Gunter Pusch