34results about How to "Reduce coalescing" patented technology

The invention discloses a mining porous spiral-type foam generating device. The mining porous spiral-type foam generating device comprises a compressed air joint (1), a nozzle body (2), a gas-liquid mixing chamber (5), porous spiral-type foamers (6), a foaming cylinder body (7) and a foam outlet joint (10), wherein the rear end of the nozzle body (2) is provided with at least one outlet nozzle; a nozzle cavity in the nozzle body (2) is of a circular truncated cone contracted shape; the compressed air joint is connected with the nozzle body; the nozzle body is installed at the inner side of the front end of the gas-liquid mixing chamber; the porous spiral-type foamers are installed in the foaming cylinder body. A multi-nozzle jet flow structure provided by the invention can achieve low-resistance high-efficiency mixing of a gas phase and a liquid phase. A wire surface high-multiple foaming and spiral low-resistance high-efficiency heat transfer mass transfer coupling mechanism is adopted for foaming, so that the foaming performance of the device is improved greatly; the generated foam is low in wind to foam ratio, is high in foaming quantity and is high in foam forming ratio; the resistance loss in the mixing and foaming process is reduced; the driving pressure of the device is improved; easily damage moving components in a turbulent flow foaming device are discarded; the device foaming reliability is improved.

The present invention discloses a silver iodide acetone solution above-ground combustion equipment, including liquid storage tank, air compressor, liquid-supplying and gas-supplying pipelines, filter, atomizer, pulse high-voltage igniter, combustion chamber and wind-proofing device, the above-mentioned components are placed on a base seat. The liquid storage tank is communicated with liquid inelt of atomizer by means of filter, the air outlet of air compressor is communicated with air inlet of the atomizer, the combustion chamber is a circular truncated cone shaped cylinder body whose upper portion is larger and lower portion is smaller, and is placed on a vertical rod. It can make combustion temp, be up to 1000 deg.C, after having been cooled in atmosphere the combustion substance can be formed into silver iodide iced airosol.

The invention provides a high-content water-based resistance reducing agent and a preparation method thereof, and solves the technical problems in the prior art that a powder resistance reducing agentis low in hydration speed, oily residues exist after gel breaking of an oily suspension resistance reducing system, environmental friendliness is not achieved and the powder content of a water-basedresistance reducing suspension system is low. The preparation comprises the following raw materials in parts by weight: 20-50 parts of polyacrylamide; 20-40 parts of polymethacrylamide; 22-66 parts ofa solvent A; 4-12 parts of a solvent B; 6-18 parts of a solvent C; 1-3 parts of a suspending agent; and 3-6 parts of a surfactant, wherein the solvent A is alkyl amides; the solvent B is polyethyleneglycol; and the solvent C is polyhydric alcohol or polyhydric alcohol esters. The high-content water-based resistance reducing agent not only has the characteristics of high hydration speed, high powder content and good storage stability, but also can realize integrated operation and online blending.

The invention discloses a graphene armor reinforced foam system for an oil-gas field and a preparation method of the foam system. The foam system is prepared from a gas phase, a liquid phase and graphene oxide, wherein the gas phase is nitrogen, carbon dioxide, natural gas or air; the liquid phase is an aqueous solution of a foaming agent, a blowing promoter and an adsorption assistant. Graphene oxide in foam can be strongly adsorbed on the gas-liquid interface of the foam, then a stable graphene armor layer is formed on an air bubble film and can effectively inhibit diffusion of gas in the foam through a liquid film and weaken of bubble coalescence, and meanwhile, the graphene armor layer can reduce loss of the liquid in the liquid film. Besides, the graphene armor layer can substantiallyimprove mechanical strength of the liquid film and effectively reduce breakage of the liquid film. By means of the graphene armor layer in the foam system, the foam has good stability. The graphene armor reinforced foam system is non-toxic and non-pollution, produces little formation damage and has the green and environment-friendly characteristics.

An atomized acid wellbore flow simulation platform for gas injection to develop fractured-cavity reservoirs, mainly including a double-flow Venturi atomization generating device, a wellbore flow simulation device and an atomizing evaluation device; the atomizing generating device includes a gas Road system, liquid circuit system, atomization generator; the gas circuit system includes an air compressor, a gas throttle valve, and a gas pressure gauge; the liquid system includes a high-pressure acid-resistant pump, a liquid throttle valve, and a liquid pressure gauge; the The simulated wellbore is used to connect the double-flow Venturi atomization generating device, including three parts: a vertical wellbore, a horizontal simulated formation, and a fluid collection device; the observation system includes a nano-laser particle size analyzer. A working method of an atomized acid wellbore flow simulation platform used for gas injection to develop fracture-vuggy reservoirs. The simulation platform can be applied to the oilfield site to control the injection displacement through the gas and liquid system, maintain a high acid atomization rate according to the site construction requirements, improve the acidification effect of fracture-cavity reservoirs, and realize fracture-cavity storage units effective communication.

The present ivnention relates to aeration mode and equipment in waste water treatment. A new kind of jet aeration reactor and jet aeration process is provided. The present invention features that at the bottom of the reactor, a coaxial jet aerator with liquid driven jet, fixed cone, distributing plate and annular gap and a knocking plane in the upper part of the reactor are installed. The two phase gas-liquid flows knock oppositely to form gas-liquid circulation from output to inner, and this can improve the space distribution of bubbles, decrease bubbles aggregation, increase the service area of the jet aerator, maintain the homogeneous energy distribution rate in whole reactor and raise the mass transferring the energy transferring efficiency.

The invention discloses an oil field ultra-high water cut stage fly ash reinforced multiphase composite profile control and flooding method. The method comprises the following step: sequentially adopting fly ash reinforced foam, surfactant foam, microemulsion and water for profile control and flooding, wherein the fly ash reinforced foam is prepared from a gas phase and a liquid phase I; the liquid phase I is an aqueous solution of a foaming agent I, fly ash and a gas-liquid interface regulator; the surfactant foam is prepared from a gas phase and a liquid phase II; the liquid phase II is an aqueous solution of a foaming agent II; the microemulsion consists of a compound surfactant, a cosurfactant, an oil phase, an inorganic salt and water; and the compound surfactant is a compound of SDSand Tween 80. According to the method, through the action among the fly ash reinforced foam slug, the surfactant foam slug and the microemulsion slug, the opening and closing of a large pore channel can be regulated and controlled, the flow resistance is reduced, the regulation and flooding effect of blocking without blocking off is realized, the flow and production of crude oil are facilitated, and the purpose of economic and efficient development of an oil reservoir is achieved.

The invention belongs to the field of oil recovery technology, and in particular relates to a nano-foam oil displacement agent and a preparation method thereof. The oil displacement agent comprises the following components in weight percentage: 10-45% of anionic surfactant, 7-15% of zwitterionic surfactant, 6-12% of oily nanoparticles, 5-10% of stabilizer, and 1-10% of dispersant 2%, the balance is water. The preparation method of the oil-displacing agent is as follows: prepare oily nanoparticles through solid paraffin and isooctanoic acid, then disperse the oily nanoparticles in water and mix them with a surfactant, then add a stabilizer and water to make a nano-foam oil-displacing agent . The nano-foam oil displacement agent can effectively inhibit gas diffusion, enhance the mechanical stability and viscosity of the liquid film, effectively isolate the transfer of external heat to the interior, reduce the thermal movement rate of molecules, greatly slow down the liquid separation rate of the foam liquid film, and enhance the foam's stability. stability, thereby improving the oil displacement efficiency.

An acid atomization device for deep acidification of fracture-cavity reservoirs, comprising a gas path system, a liquid path system, and an atomizing nozzle; the gas path system includes a gas inlet, an air compressor; the liquid path system includes an acid liquid inlet, a high-pressure acid-resistant Pump, double-flow venturi tube; air enters the gas inlet after being pressurized by the air compressor; acid liquid enters the annular cavity after being pressurized by the high-pressure acid-resistant pump, and the annular cavity is used to accumulate acid liquid, and the acid liquid in the annular cavity The acid liquid enters the cylindrical cavity through the acid liquid inlet on the wall, and acid mist is formed in the cylindrical cavity due to hydraulic cavitation, and the acid mist is constrained by the cylindrical cavity to become an acid mist columnar fluid, which occurs during atomization The high-speed movement inside the atomizer and finally sprayed out from the atomization nozzle of the atomization generator, which is directly connected with the wellbore. The device has good performance in high temperature resistance, high pressure resistance and acid resistance. It can control the injection displacement through the gas and liquid system, maintain a high atomization rate of acid liquid, and improve the acidizing effect of fracture-cavity reservoirs.

The invention provides a preparation method of an AKD paper sizing agent. The method comprises the following steps: (1), dissolving HAuCl4 and PVP-DADMAN into water, boiling the water, then adding a reducing agent, keeping the HAuCl4 and PVP-DADMAN in dark place, stirring to make the HAuCl4 and PVP-DADMAN react, performing centrifugation, and performing vacuum drying on supernate, so as to obtainmodified nanometer gold particles; (2), dissolving PEOS into molten AKD, and taking the PEOS as an oil phase; dispersing the modified nanometer gold prepared in the step (1) into water, adjusting pH to be acidic, and taking the modified nanometer gold as a water phase; performing ultrasonic mixing on the water phase and the oil phase while heating, and allowing the water phase and the oil phase tostand still, so as to obtain oil-in-water type AKD Pickering emulsion, namely the stress induced AKD paper sizing agent. The sizing agent effectively reduces coalescence of AKD oil drops, greatly improves the stability of emulsion, ensures that water phase and oil phase are not separated out after the emulsion is stabilized for a plurality of months, does not need to add any surfactants and othermodifiers, and is simple in structure and easy to operate.

The invention discloses a controllable flow-disturbing microalgae cultivation device which can effectively improve carbon fixation efficiency, comprising a reactor, an air chamber, a bubble generator and a diffuse flow swirling diffuser; the reactor is located on the air chamber On the side, the bubble generator is installed in the air chamber, which includes an octagonal tube, a water pump and a Venturi tube; the Venturi tube is connected to a connecting pipe, and the connecting pipe is connected to a hose after extending out of the air chamber; the hose It is connected with the bubble conveying pipe, and the bubble conveying pipe extends into the reactor; the diffuser swirling diffuser includes a motor, a transmission shaft and a cutting device; the cutting device includes a The three-layer cutting disc is provided with several thorns on the lower side of the upper cutting disc and the upper and lower sides of the middle cutting disc and the lower cutting disc. The present invention can CO 2 The formed bubbles are smaller in size and evenly distributed, thus greatly improving the carbon fixation and mass transfer efficiency of microalgae, which is very rich in the concept of energy saving and emission reduction.

The invention provides an emulsifier for Pickering emulsion. The inner core of the emulsifier is nano-gold particles grafted and modified by PVP-DADMAN and is embedded in PEOS; the mass ratio of nano-gold, PVP-DADMAN and PEOS is 4:1:2 to 2:3:10; the average diameter of the emulsifier is 35-75nm; and the shape of the emulsifier is irregular polygon. The emulsifier for the Pickering emulsion can beapplied to paper making, especially for preparing liquid paraffin emulsion for paper making. The emulsifier provided by the invention can obtain stable Pickering paraffin emulsion, and can effectivelyreduce coalescence between paraffin oil droplets, greatly improve emulsion stability and stabilize the emulsion for months without water phase and oil phase precipitation without the need to add anysurfactant and other modifiers, and the steps are simple and easy to operate.

The invention discloses an early strength agent for concrete prefabricated parts and a preparation method thereof, comprising: soluble calcium salt, soluble silicon salt, anionic dispersant, nonionic dispersant, thickener and water; the preparation method is: soluble calcium salt , Soluble silicon salt, anionic dispersant, nonionic dispersant and thickener react compoundly in aqueous solution to generate organically doped calcium silicate hydrate gel suspension, which is the early strength agent for concrete prefabricated parts. The present invention uses anionic and nonionic composite dispersants to disperse calcium silicate hydrate gel particles, which can provide better dispersion; and add thickeners to early strength agents to reduce calcium silicate hydrate gel particles The aggregation between them further improves the stability.