An omniphobic emulsion comprising an aqueous continuous phase having dispersed therein a plurality of non-aqueous discontinuous phase droplets; wherein the non-aqueous discontinuous phase droplets are characterized by a droplet size of less than about 100 micrometers (μm); wherein each of the plurality of non-aqueous discontinuous phase droplets comprises a plurality of surfactant molecules and an omniphobic agent, wherein each surfactant molecule has a hydrophilic head portion and a hydrophobic tail portion; wherein each of the plurality of non-aqueous discontinuous phase droplets comprises the plurality surfactant molecules having the hydrophilic head portions disposed into a droplet outer layer with the hydrophobic tail portions extending inward from the droplet outer layer toward the omniphobic agent; and wherein the droplet outer layer encloses the omniphobic agent.

The present invention relates to aqueous compositions for forming a foam, comprising a surfactant and a particulate inorganic material, and optionally one or more polymers, such as soil conditioning polymers, and/or viscosity increasing polymers. The present invention further relates to the use and application of said aqueous compositions.

Injecting into an oil reservoir a gaseous mixture of carbon monoxide (CO) together with gaseous hydrocarbons comprising a mixture of one or more of methane (C1), ethane (C2), propane (C3), butane (C4), pentane (C5), and natural gasoline, also referred to as NGL, for the purpose of achieving additional oil recovery from any of conventional, heavy, and unconventional oil reservoirs, including shale oil reservoirs. The gaseous hydrocarbons and the CO may range from 0.1% gaseous hydrocarbons and 99.5% CO and associated minor gases including any of CO2, H2, N2 to 98.5% gaseous hydrocarbons and 1.5% CO and associated minor gases.

Injecting into an oil reservoir a gaseous mixture of carbon monoxide (CO) together with gaseous hydrocarbons comprising a mixture of one or more of methane (C1), ethane (C2), propane (C3), butane (C4), pentane (C5), and natural gasoline, also referred to as NGL, for the purpose of achieving additional oil recovery from any of conventional, heavy, and unconventional oil reservoirs, including shale oil reservoirs. The gaseous hydrocarbons and the CO may range from 0.1% gaseous hydrocarbons and 99.5% CO and associated minor gases including any of CO2, H2, N2 to 98.5% gaseous hydrocarbons and 1.5% CO and associated minor gases.

Surfactants for use in formulations and processes suitable for hydrocarbon recovery. These formulations, include formulations suitable for fracking, enhancing oil and or gas recovery, and the recovery and or production of bio-based oils.

Surfactants for use in formulations and processes suitable for hydrocarbon recovery. These formulations, include formulations suitable for fracking, enhancing oil and or gas recovery, and the recovery and or production of bio- based oils.

A method of servicing a wellbore may comprise providing a treatment fluid comprising a carrier fluid and hollow particles, wherein the hollow particles may comprise an outer wall that encapsulates a gas. The method may further comprise introducing the treatment fluid into a wellbore annulus and trapping at least a portion of the treatment fluid in the wellbore annulus. The carrier fluid may degrade the outer wall of the hollow particles in the wellbore annulus and release the encapsulated gas.

A method of servicing a wellbore may comprise providing a treatment fluid comprising a carrier fluid and hollow particles, wherein the hollow particles may comprise an outer wall that encapsulates a gas. The method may further comprise introducing the treatment fluid into a wellbore annulus and trapping at least a portion of the treatment fluid in the wellbore annulus. The carrier fluid may degrade the outer wall of the hollow particles in the wellbore annulus and release the encapsulated gas.

A method for building an underground storehouse by dissolving limestone with carbon dioxide, the method comprising the following steps: a.) drilling two wells extending from the ground surface (1) to a limestone layer (2), building a channel (5) allowing the two wells to communicate, and installing casing pipes (3, 4) respectively in the two wells; b.) introducing CO.sub.2 gas having at least 1 MPa of pressure into a CO.sub.2 absorbing solution having the same pressure to form a CO.sub.2 solution, flowing the CO.sub.2 solution into underground via the casing pipe (3) to react with the limestone to form a calcium bicarbonate solution, forming a cavern in the meanwhile, and discharging the calcium bicarbonate solution via the other casing pipe (4); c.) decompressing the discharged calcium bicarbonate solution to decompose the calcium bicarbonate contained in the solution into CO.sub.2, water and calcium carbonate, and recycling the separated CO.sub.2 absorption solution and the CO.sub.2; repeating steps b.) and c.) until a cavern meeting design requirements is formed, and discharging the solution from the cavern to form the underground storehouse (6). Also disclosed is a device for building an underground storehouse by dissolving limestone with carbon dioxide, the device comprising a CO.sub.2 storage tank (7), an absorption tower (8), a crystallizer (11), a pressure relief valve (9), a gas-liquid separator (10), a vacuum pump (13), a buffer (14) and booster pumps (12, 15, 16).

A method for building an underground storehouse by dissolving limestone with carbon dioxide, the method comprising the following steps: a.) drilling two wells extending from the ground surface (1) to a limestone layer (2), building a channel (5) allowing the two wells to communicate, and installing casing pipes (3, 4) respectively in the two wells; b.) introducing CO.sub.2 gas having at least 1 MPa of pressure into a CO.sub.2 absorbing solution having the same pressure to form a CO.sub.2 solution, flowing the CO.sub.2 solution into underground via the casing pipe (3) to react with the limestone to form a calcium bicarbonate solution, forming a cavern in the meanwhile, and discharging the calcium bicarbonate solution via the other casing pipe (4); c.) decompressing the discharged calcium bicarbonate solution to decompose the calcium bicarbonate contained in the solution into CO.sub.2, water and calcium carbonate, and recycling the separated CO.sub.2 absorption solution and the CO.sub.2; repeating steps b.) and c.) until a cavern meeting design requirements is formed, and discharging the solution from the cavern to form the underground storehouse (6). Also disclosed is a device for building an underground storehouse by dissolving limestone with carbon dioxide, the device comprising a CO.sub.2 storage tank (7), an absorption tower (8), a crystallizer (11), a pressure relief valve (9), a gas-liquid separator (10), a vacuum pump (13), a buffer (14) and booster pumps (12, 15, 16).