445 results about "Injection volume" patented technology

A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.

The invention provides a testing device for competitive adsorption of supercritical CO2 and CH4 in shale and a testing method of the device. The device comprises an injection pump system, a long core holder, a back-pressure valve, a differential pressure gauge, a temperature control system, a liquid fraction collector, a gas meter and a gas chromatograph instrument. The testing method comprises an evaluation method of CH4 single component gas in a shale core and an evaluation method of CH4 gas, converted by the supercritical CO2, in the shale core. According to the device and method, the detection conditions of a laboratory test that the supercritical CO2 displaces CH4 adsorbed in the shale under the high temperature and high pressure conditions of a stratum are met through a multifunctional long core displacement method, and then the purpose of evaluating the efficiency that the supercritical CO2 displaces the adsorbed CH4 is achieved; by using the combined long core, the gas injection volume is large, the errors are decreased, and the formation condition is truly restored; the cracked long core can simulate the competitive adsorption process of the fractured supercritical CO2 and the CH4 under the true shale reservoir condition; the injected CO2 is in the supercritical state, and an experiment is performed in a step-by-step depressurizing mode, and the depletion exploitation process of a stratum can be truly simulated.

The invention relates to a method for electrolyte-injecting a battery, which comprises the steps that: a battery shell is vacuumized; then non-aqueous electrolyte is injected into the battery shell by a filling machine; after a first electrolyte-injection is finished, the electrolyte content of the first electrolyte-injection is above 60 percent of the total weight of the electrolyte injected; the battery shell is sealed to carry out centrifugal sinking; then the seal is taken to vacuumize; a second electrolyte-injection is carried out; the electrolyte content of the second electrolyte-injection is the content which injects the battery shell full. By using the method of the second electrolyte injection, the invention largely enhances the electrolyte injection volume, which enhances by 15 percent-25 percent of the electrolyte injection volume compared with the prior art.

The invention discloses an environmental aerosol direct sampling gathering sample injecting device and a quantitative analysis method. The environmental aerosol direct sampling gathering sample injecting device comprises an environmental aerosol sampling module, an aerosol atomization dissolving generation module, an aerosol condensation growing up module, an aerosol number concentration gathering module and a base body gas removing module. The environmental aerosol sampling module comprises a sampling port, a sampling pump and a connection pipeline, preferably, the sampling pump is a membrane pump; the aerosol atomization dissolving generation module comprises an atomizer, a fog chamber, a drying device and a connection pipeline, the atomizer is used for atomizing a standard solution to generate fog drops, the fog room is used for removing large fog drops and the drying device is used for dissolving the fog drops output from the fog room and removing steam contained in the fog drops. Due to the mode that the environmental aerosol direct sampling gathering sample injecting device serves as an aerosol sample injection system and is used in cooperation with an ICP-MS, quality sample injection rate of an element to be measured in environmental aerosol can be measured quantitatively, and then sample injection volume flow of the environmental aerosol is divided by the quality sample injection rate to acquire the quality volume concentration of the element to be measured.

The invention relates to a composite foam flooding method suitable for oil field exploitation, comprising the following steps that: pretreated prepositive polymer plug is injected into the formation, and the injection volume of the polymer plug is 8-15% of the total pore volume of the formation; composite foam flooding auxiliary plug is injected into the formation, and the injection volume of the composite foam flooding auxiliary plug is 5-10% of the total pore volume of the formation; composite foam flooding main plug is injected into the formation, and the injection volume of the composite foam flooding main plug is 30-60% of the total pore volume of the formation; and follow-up protective polymer plug is injected into the formation, and the injection volume of the follow-up protective polymer plug is 10-20% of the total pore volume of the formation. With the adoption of the composite foam flooding method suitable for oil field exploitation, a good flooding effect can be obtained.

The present invention relates to a volume-adjustable micro-injection device. The device includes a base structure having a syringe positioning structure and a grip, in which the syringe positioning structure can flexibly accommodate injection syringes with different volumes; a holding structure capable of flexibly adjusting an injection angle of syringe content for easier operation; a qualitative controller capable of accurately controlling injection volume; a pressure pushing structure to hold and push a plunger; an injection controller interlinked with the qualitative controller and the pressure pushing structure; and an eject structure facilitating simple operation and easy replacement of injection syringes. In contrast to conventional structures, the present invention provides advantages that control injection volume more accurately, address better injection angle control, allow for the syringe contents to be free from air exposure, require no special syringes, and allow for single-handed replacement of the injection syringe.

The invention discloses a pipeline natural gas hydrate formation online early-warning device and a method. The online early-warning device comprises an online data acquisition module which is directly arranged at a position of a gathering pipeline, required to be monitored, for tracking and monitoring parameters relevant to the hydrate formation condition on the whole pipeline and realizing online early warning for the hydrate formation and optimization of the injection volume of different types of natural gas hydrate inhibitors finally. According to an online early-warning method, the electrical conductivity and the temperature of the liquid phase as well as the propagation speed of ultrasonic waves in the water phase are monitored to calculate the concentration of the hydrate inhibitor and the saline concentration in the water phase of the monitored point, and the acquired parameters such as gaseous phase pressure, gaseous phase components and temperature are also considered to realize online early warning and the optimization of the injection volume of the inhibitor.

The invention relates to a dynamic probability load flow calculation method taking response correlation into account. The method comprises the following steps: (1) creating a probability model of dynamic random injection volume; (2) performing optimized analysis and calculation on imbalance power of a system, creating a dynamic load flow model for reference value distribution of the imbalance power of the system, and working out node voltage and a branch load flow reference value as well as a related sensitivity matrix; (3) performing random variable calculation taking interaction correlation into account, calculating each-order semi-invariant of a random variable, and working out each-order semi-invariants of the node voltage and the branch load flow random quantity by a linearization method based on sensitivity; (4) working out a distribution function to be calculated by a Gram-Charlier series expansion method. The dynamic probability load flow calculation method has the benefits that on one hand, a distribution method for imbalance power of dynamic load flow is used for improving the convergence of random load flow based on semi-invariant when the imbalance power of the system is relatively high, and on the other hand, the response correlation of the random variable can be taken into account.

The invention discloses a test simulating device for improving a recovery rate of coal bed methane by injecting carbon dioxide. The test simulating device for improving the recovery rate of the coal bed methane by injecting the carbon dioxide comprises a coal reservoir simulating system, a gas injecting system, a fracture simulating carbon dioxide injecting system, a carbon dioxide absorbing device and a data collection and control system, wherein the coal reservoir simulating system is used for simulating the conditions of pressure and temperature of a coal reservoir, the gas injecting system is used for injecting methane gas or helium gas into the coal reservoir simulating system, the fracture simulating carbon dioxide injecting system is used for injecting high-pressure liquid into the coal reservoir simulating system, enabling the coal reservoir simulating system to simulate the degree of development of fractures, and injecting the carbon dioxide into the coal reservoir simulating system, the carbon dioxide absorbing device is used for absorbing the carbon dioxide exhausted by the coal reservoir simulating system, and the data collection and control system is used for collecting data and carrying out process control. The test simulating device for improving the recovery rate of the coal bed methane by injecting the carbon dioxide is capable of simulating the real conditions of the coal reservoir, simulating on-spot fracturing and the process of pump injection of the carbon dioxide, simulating effects of improvement of the recovery rate of the coal bed methane by injecting different volumes of the carbon dioxide according to different degrees of the development of the fractures and different conditions of the coal reservoir, and achieving an optimal carbon dioxide injection volume aiming at a specific coal reservoir.

The invention provides a system and a method for measuring the content of 57 volatile organic compounds in ambient air. The system comprises a four-way valve, a gas chromatograph and a three-stage cold trap preconcentrator; the four ports of the four-way valve are respectively connected with a pre-separation column, a first secondary separation column, a second secondary separation column and a helium gas source; and the gas chromatograph is provided with a flame ionization detector and a mass spectrometry detector. The method comprises the following steps: (1) preparing a mixed standard use gas; (2) preparing an internal standard use gas; (3) collecting an ambient air sample; (4) establishing a standard curve of a target component; and (5) taking the ambient air sample to be tested, removing interfering substances through the three-stage cold trap preconcentrator, performing gas chromatography-mass spectrometry analysis in the mass spectrometry detector after focusing is performed, obtaining the content of each component according to a peak area and the standard curve established in the step (4), and calculating the concentration of the sample to be tested according to a sample injection volume of the sample to be tested. By adopting the method provided by the invention, the simultaneous analysis of two detectors is achieved by once sample injection, thereby avoiding the influence of the interfering substances on the measurement result simply and effectively.

The invention relates to a processing method of an instant meat product. The processing method comprises the following steps: selecting fresh meat or frozen meat at first, and pretreating the fresh meat or frozen meat for later use; preparing a maillard reaction solution; crushing and mixing to prepare a spice; cooling the maillard reaction solution to 2-10 DEG C, and uniformly injecting the reaction solution into the meat by using a saline water injection machine, wherein the injection volume is 2-5% of the mass of the meat raw material; standing until the maillard reaction solution is uniformly infiltrated into meat fibers, and cutting the meat into meat particles of 1-2cm<3>; putting the meat particles into a tumbling machine, adding sesame, sugar, edible salt, edible oil, white spirit and the spice, and tumbling to season the meat particles; heating to cure the meat particles in a microwave heating tunnel; and discharging the meat particles, quickly cooling the meat particles in fast-cooling equipment, metering, vacuumizing, packaging, sterilizing by passing through a microwave sterilizing tunnel, and quickly cooling to the normal temperature to obtain the instant meat product. By adopting the processing method disclosed by the invention, the maillard reaction solution is injected into the meat, and reaction is initiated during microwave heating and curing, so that the meat is quickly and uniformly colored, is good in color and luster and has outstanding and lasting meat fragrance; and from microwave sterilization to commercial sterilization, damages to meat fibers are small.

The invention provides a method and a system for analyzing the steam suction condition of a thick oil horizontal well. The method comprises the following steps of sectionalizing the horizontal well, and setting the gas injection volume of each section; calculating the average temperature of each section after liquid production according to basic well temperature data and stratus heat loss data by adopting stratum heat transfer and mass transfer principle as a constraint condition; constructing a theoretical well temperature curve of the horizontal well in the throughput round according to the average temperature of each section of the horizontal well after the liquid production; fitting the theoretical well temperature curve of the horizontal well in the throughput round and a measured well temperature curve of the throughput round, and performing inversion according to the fitted theoretical well temperature curve to obtain the gas injection volume of each section of the horizontal well. According to the method and the system, the use condition of the sections of the horizontal well can be evaluated, the use degree can be analyzed, and thick oil horizontal well process measure regulation and oil reservoir analysis can be guided.

The invention provides a thermal recovery horizontal well water shut-off and profile control method. The thermal recovery horizontal well water shut-off and profile control method includes the steps that (1) a water production interval is determined according to a thermal recovery horizontal well differential temperature test technique and oil reservoir geological conditions; (2) the steam injection volume and temperature field distribution are simulated through an oil reservoir value simulation method, an injection scheme is determined, and the injection volume of gel and plugging agents and the size of a displacement slug are optimized; (3) according to the determined injection scheme and the optimized injection volume of the gel and the injection agents, after the gel and the injection agents are injected into the water production interval, the displacement slug is injected, and ultimately steam is injected. According to the thermal recovery horizontal well water shut-off and profile control method, a high-permeability layer is plugged selectively by means of a temperature field, the steam enters an undeveloped oil layer, the steam injection profile of a reservoir is improved, and the purpose of economically and efficiently developing a thermal recovery horizontal well with high water content is achieved.

The invention discloses a sewage treatment pool feeding apparatus for water plants. The sewage treatment pool feeding apparatus comprises a feeding pipe, wherein a mixing cavity is arranged in the feeding pipe, the left portion and the right portion of the mixing cavity are communicated to each other, and the mixing cavity is slidably connected to fixing devices symmetrically arranged left and right. According to the present invention, the structure similar to the triangular chuck is used to fix the pipes with different diameters so as to enhance the use range of the equipment; the self-adjustable closed ring is formed through the limitation of the spring and the sling groove so as to ensure the sealing property at the interface of the equipment; according to the impart force on the waterflow, the faster the water flow, the faster the stirring; the amount of the agent taken out of the agent box every time is a constant value, and only the number of the opening per unit time is increased, such that the proportion of the total feeding is increased; and by using the principle of centrifugation, the faster the rotation, the larger the injection volume per unit time, such that the workefficiency of the treatment is ensured.

A variable flow rate injector provides accurate, precise, and reproducible injection volumes that have low dispersion. The invention is particularly well-suited for HPLC injection volumes <500 nL but can be used to inject larger volumes and in different applications as well. Injections are performed at a first flow rate and separations are performed at a second flow rate. For improved HPLC system performance, the first flow rate is less than the second flow rate. The injector uses a variable flow rate fluid supply that allows rapid switching between flow rates desired for injection and flow rates desired for separations.

The invention relates to an electronic control unit (ECU) of an electric-control high-pressure common-rail injection system for a vehicle diesel engine, mainly applied to a high-pressure common-rail system of a diesel engine for accurately controlling the injection volume, the injection pressure, the injection timing, the injection rule, and the like; an ECU input module comprises digital quantityinput and analog quantity input which comprise signal-processing circuits; a microcontroller module adopts an MPC5534 of an ALE technology as a microcontroller; an output module is used as a drivingcircuit of a high-pressure common-rail pressure control valve and an electromagnetic valve of an oil injector, adopts a 250V high-pressure driving technology to realize rapid starting performance, adopts TPU multipath combination to control injection, applies a CPLD technology to realize the double closed-ring control of currents and voltages and adopts inductors to store and recycle energy so asto reduce the consumption of driving energy; and a communication module mainly comprises a CAN circuit and a serial communications interface (SCI) circuit. The size of an ECU circuit board is reducedby applying a modularized heat-dissipation technology and an EMC circuit design technology is applied.

The present invention relates to the technical field of detectors, more particularly to an automatic gas sample injection apparatus and a use method thereof. The automatic gas sample injection apparatus comprises a first selection valve, a switching valve and a second selection valve, wherein the first selection valve can be connected with the switching valve, a first carrier gas, atmosphere or a vacuum pump, the switching valve can be connected with a second carrier gas, a plurality of detection gas inlets, a plurality of quantitation rings or the second selection valve, and the second selection valve can be connected with atmosphere or a gas collection device. Compared with the automatic gas sample injection apparatus in the prior art, the automatic gas sample injection apparatus of the present invention has the following characteristics that: the automatic gas sample injection apparatus is the full-automatic sample injection without human intervention when using the gas bag or syringe to perform the sampling, the sample injection volume is accurate, the repeatability is good, the use and the maintenance are convenient, and the apparatus can be widely used in the fields of environmental monitoring centers, Centers for Disease control and Prevention, occupational disease prevention and treatment, petrochemical industry, and the like.

The invention discloses a high-precision anesthetic injector. The anesthetic injector comprises a syringe, a push rod arranged in the syringe, a push handle connected to the tail end of the push rod, a piston connected to the front end of the push rod, a slender rod connected to the front end of the piston, a finger supporting piece connected to the tail end of the syringe, a needle head connected to the front end of the syringe, a needle guard sleeved on the needle head, a puncture needle connected to the front end of the needle guard and a precise injection device arranged on the syringe. According to the high-precision anesthetic injector, by arranging the precise injection device, the high precision and micro control of the injection amount of anesthetic agents can be realized, the accuracy of the injection amount of the anesthetic agents is ensured; by arranging the match of conical needles and the needle guards, and the sealing between the conical needles and the needle sleeves is ensured, so as to prevent liquid from leaking; the purpose that gas in the syringe is discharged and agentia is discharged when the gas is discharged is realized; the waste of the agentia is avoided.