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4 results about "Light hydrocarbons" patented technology

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Method for determining the composition of natural gas liquids, mean pore-size and tortuosity in a subsurface formation using NMR

ActiveUS11099292B1Big contrastError minimizationElectric/magnetic detection for well-loggingEarth material testingNMR - Nuclear magnetic resonancePhysical chemistry

New methods for determining the volumetric composition and saturation of methane and NGLs (natural gas liquids: ethane, propane, butane, and pentane) in a petroleum reservoir combining NMR (nuclear magnetic resonance) logging and NMR core analysis and for determining the mean pore-size and tortuosity of the light hydrocarbon-filled porosity in a petroleum reservoir using NMR core analysis.

Method for determining the composition of natural gas liquids, mean pore-size and tortuosity in a subsurface formation using NMR

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Owner:VINEGAR TECH LLC +1

Method for cracking strata with organic materials to improve recovery ratio of adjacent oil-bearing reservoir stratum

ActiveCN109322650AEnhanced overall recoveryFluid removalEconomic benefitsProduct gas

The invention relates to a method for cracking a strata with organic materials to improve the recovery ratio of an adjacent oil-bearing reservoir stratum. The method comprises the following steps that(1), heat is injected to an organic shale, and the shale is heated to above 150 DEG C; (2), CO2, and C2 to C5 light hydrocarbon gases produced by initial cracking of organic materials are conveyed toadjacent oil-bearing reservoir stratum, the pressure of the oil-bearing reservoir stratum increases, contained oil is completely soluble with the CO2 and the light hydrocarbon, and therefore gas flooding and CO2 / light hydrocarbon miscible enhanced oil recovery is formed; (3), crude oil in the oil-bearing reservoir stratum is produced from an oil production well installed in the reservoir stratum;(4), the heat is continuously injected to the shale, the temperature rises to above 320 DEG C, volume gas and light oil are generated and are produced through the oil production well mounted in the shale; and (5), during the termination of shale oil production, the oil production well with the oil-bearing reservoir stratum is started again, gas flooding of oil-bearing reservoir stratum is carriedout by natural gas continuously produced the shale at high temperature, and therefore the recovery ratio of the oil-bearing reservoir stratum is maximized. The high recovery ratio is obtained, and fracture to the oil-bearing reservoir stratum is not required. The economic benefits are obviously improved.

Owner:ANMAN SHALE TECH CO LTD

Ammonia-water absorption type refrigerator driven by oilfield waste heat and used for recycling light hydrocarbon

InactiveCN105444456AReduce loadSolve the problem of high exhaust heat and air pollutionClimate change adaptationEnergy efficient heating/coolingBinding equilibriumAtmospheric air

The invention discloses an ammonia-water absorption type refrigerator driven by oilfield waste heat and used for recycling light hydrocarbon. The absorption type refrigerator is composed of a conduction oil generator, a rectifying tower, a condenser, a liquid ammonia tank, a subcooler, a liquid filling bubbling absorber, a solution heat exchanger, a fire tube furnace flue gas finned tube recoverer, a heating medium furnace flue gas finned tube recoverer, a concentrated solution tank, a solution pump, an electric control cabinet, an electric regulating valve and a temperature sensor. The ammonia-water absorption type refrigerator has the characteristics that exhaust flue gas waste heat of a heating medium furnace and a fire tube furnace in an oilfield light hydrocarbon recycling technical process is fully recycled, and the recycled waste heat is used for driving a unit to perform refrigeration for replacing a traditional compression type refrigerator in the oilfield light hydrocarbon recycling technical process, and thus the electric power consumption for recycling the oilfield light hydrocarbon is reduced while the exhaust flue gas temperature of the heating medium furnace and the fire tube furnace is decreased and air environmental pollution is reduced. The binding equilibrium of cold and heat in an oilfield light hydrocarbon recycling technique is achieved, and the unit has multiple advantages that the operation is reliable, easy and convenient, and the electricity consumption is reduced by 90% compared with the traditional compression refrigerator.