1762 results about "Injections water" patented technology

The present invention relates to the development of tracer fluids, more generally, that of aqueous liquids, intended to be injected under pressure in an oil reservoir, for example from an injection well up to a production well.

The object of the invention is to propose a new method of study of a solid medium, i.e. an oil reservoir, by diffusion of a liquid (i.e. injection waters) containing tracers, through said solid medium, which is simple to implement and economical and which remedies the drawbacks of the known tracers for injection waters of oil reservoirs.

This method essentially consisting of injecting, in this solid medium, an injection liquid comprising a nanoparticle-based tracer having average dimensions comprised between 20 and 200 nm, detectable by means of one or several S signals at dilutions of less than or equal to 10⁻⁷, adapted to form a stable colloidal suspension in a saline medium, at least a portion of which is constituted of a core and a coating provided with an adjustable hydrophilic-lipophilic balance (HLB) and comprising at least one organic and/or organosilicon component; recovering the liquid having diffused; and analyzing this liquid having diffused to measure the quantity of tracer by detection of the signal or signals S.

A method for treating water including intaking a first amount of water from a first source into a plurality of treatment blocks, treating the first amount of water, outputting aqueous treated water streams from each of the plurality of treatment blocks, separating the aqueous treated water streams from each of the plurality of treatment blocks into aqueous permeate streams and concentrate reject streams, monitoring each of the aqueous permeate streams, controlling the operation of at least one of the plurality of treatment blocks based on predefined water-characteristic tolerances that fall within a predetermined concentration range based on the different qualities of the aqueous permeate streams, outputting a product water stream into an injection water reservoir or blend point, the product water stream including the aqueous permeate stream, intaking a second amount of water from a second source, treating the second amount of water, and discharging the dischargeable water stream.

The invention relates to a safety injection system, which is used for mitigating an accident and protecting the safety of a reactor core of a nuclear power plant and comprises a high-pressure safety injection pump, a low-pressure safety injection pump, a safety injection tank and a refueling water tank for containing safety injection water, wherein the refueling water tank is positioned in a safety shell of the nuclear power plant; the safety injection tank is connected on a direct pressure vessel injection pipeline by a pipeline provided with a control valve; the high-pressure safety injection pump is connected between the refueling water tank and the direct pressure vessel injection pipeline by a pipeline provided with a control valve; and the low-pressure safety injection pump is connected between the refueling water tank and the direct pressure vessel injection pipeline by a pipeline provided with a control valve. The safety injection system has the advantages of reducing cross pipelines of the system, realizing continuous operation, simplifying the system operation, also strengthening mitigating capability of the system for the serious accident and improving safety of the nuclear power plant.

The invention relates to a novel selective water shutoff agent for oil well water shutoff, belonging to the technical field of tertiary oil recovery. The water shutoff agent is a composite system of gel particles with the mass concentration of 0.5-5% and a cross-linking agent with the mass concentration of 1-2%, which is prepared by using oilfield injection water; and the water shutoff agent is applicable to water plugging of an oil well at a temperature of 60-120 DEG C. The gel particles are formed by an acrylamide monomer or compounding the acrylamide monomer with a temperature resistant and salt-resistant auxiliary monomer and a cross-linking monomer through copolymerization; the cross-linking monomer is an ester monomer which has a double-bond structure and is easy to resolved when being heated, the expanding and resolving time of the cross-linking monomer at different temperatures can be controlled through adjusting the concentration of the cross-linking monomer, and bulk polymerization or inverse emulsion polymerization is adopted as a polymerization method. In the invention, basically no gel is formed on an oil layer, and high-strength gel can be formed on a water layer, thus defects in the prior art are overcome, the error shutoff phenomenon easily caused by the traditional polymer bulk gel in the oil layer is reduced to the greatest extent, and the capacity of an oil well suffering from water shutoff is ensured.

This invention relates to a process utilizing natural carbon-13 isotope for identification of early breakthrough of injection water in oil wells. All natural water sources are labeled by unique ratios of carbon isotopes (¹³C/₁₂C). Following the requirements of the invention, the carbon isotope ratio for oil bearing formation water and for local aquifer water which is to be injected in to the oil reservoir rock is determined. The carbon isotope ratio of the produced water from the selected oil wells is then monitored periodically. When the carbon isotope ratio of the produced (oil well) water shows deviation from the formation water value and tends towards injection water value, then the early breakthrough phenomenon of injection water is identified. Thus the contrast in natural carbon isotope ratios of injection water, formation water and produced water from selected oil wells serve as tracer in the identification of “Early Breakthrough” phenomenon of injection water and its movement.

The present invention provides a system for treating carbon dioxide, and a method by which such treated carbon dioxide can be stored underground at low cost and with high efficiency. The present invention' method for storing carbon dioxide underground includes: a step for pumping up to the ground groundwater from a pumping well in a deep aquifer, and then producing injection water. Carbon dioxide that has been separated and recovered from exhaust gas from a plant facility is changed into the bubbles. The bubbles are mixed with the injection water, and hereby produces a gas-liquid mixture a step for injecting into. The deep aquifer is injected into the gas-liquid mixture from the injection well. The method preferably further includes a step for dissolving a cation-forming material in the injection water, and a step for injecting the injection water, in which the cation-forming material is dissolved, into the deep acquifer at its top and above the place at which injection water has already been injected.

The invention discloses a preparation method and the production process of a complex injection of 13 vitamins. The injection adopts dual-injection type, the invention overcomes the problem of solubility of the fat-soluble vitamins in water, so the invention can be prepared into the water injection; the stability of the product is good, and various vitamins can not be affected mutually. The injection includes water-soluble vitamins, fat-soluble vitamins, surfactant, antioxidant, complexing agent and solvent, the injection water is added till the dissolution, the activated carbon is added for absorption, the pH value of the solution is regulated, and then the nitrogen filling and sterilization are carried out. The production process of the invention prepares the injection into dual-injection type, the vitamin B12, folic acid and biotin have an independent package, the process overcomes the problem of solubility of fat-soluble vitamins in water, the invention can be prepared into water injection, the stability of the product is good, and various vitamins can not be affected mutually, the vitamins can be added in a large infusion for usage, so as to avoid the trouble of redissolution and reuse of the freeze-dried powder injection.

The invention provides a foaming agent for low gas liquid ratio foam flooding for improving recovery ratio of common heavy oil reservoir and an injection method thereof. The foaming agent is prepared from a nonionic-anionic surfactant, a betaine type amphoteric surfactant and water, wherein the nonionic-anionic surfactant accounts for 0.01 to 0.03 weight percent of the total weight; the betaine type amphoteric surfactant accounts for 0.05 to 0.3 weight percent of the total weight; and the balance is oil field injection water. The foaming agent has good foaming tendency, can reduce the interfacial tension of oil and water to the lowest under the condition of not adding alkali, and can give full play to the foam flooding and the improvement of conformance factor and displacement efficiency. On the basis of the foaming agent, when the gas liquid ratio is between 0.1:1 and 0.3:1 (volume ratio), the generated foam can improve the recovery ratio by over 10 percent, and the technology with low cost and good effect for improving the recovery ratio of the heavy oil reservoir is realized.

Active medicine daptomycin is mixed with certain amount of sodium hydroxide and pH regulator, the mixture is compounded with injection water to form solution in certain concentration, and the solution is filled into antibiotic bottle and freeze dried for 30-60 hr to prepare loose and water soluble freeze dried preparation. The freeze dried daptomycin preparation for injection has excellent medicine stability and convenience in carrying and clinical application. The preparation is used specially for intravenous injection to treat skin infection with resistance to other antibiotics.

The invention relates to a leaching device used in vertical transfer of pollutants in soil. The leaching device comprises a spray nozzle, a water flow meter, a leaching column for holding an experimental earth pillar and a percolate accommodating container, wherein, the leaching column is internally provided with at least two filter layers capable of filtering leaching liquid, a filter layer structure is respectively arranged on the upper and lower ends of the experimental earth pillar, and each filter layer is provided with a filter screen layer, a filter bulb layer and a filter paper layer; and in addition, the height of the leaching column body is 90cm-150cm, and the inner diameter of the cross section of the column body is 5cm-15cm. The leaching device has the advantages that on the basis of the large axial size of the leaching column, vertical transfer of the pollutants in the profile of the deeper soil can be simulated; by setting the water flow meter, the flow velocity and flow rate of injection water can be accurately controlled; by setting the upper filter layer, the injection water can be uniformly sprayed; and by setting the lower filter layer, the filter effect can be ensured and percolate can be timely and effectively discharged.

The present invention provides a freeze-dried medicine composition containing methylprednisolone sodium succinate and its preparation method. Said medicine composition includes 1-3000 mg of methylprednisolone sodium succinate as main component and auxiliary component including 1-1000 mg of sodium hydrogen carbonate or other alkaline medicinal auxiliary material 1-500 mg of lactose or other stabilizing agent. 1-50 mg of sodium dihydrogen phosphate or acid component of other pH buffering agent, 1-500 mg of disodium hydrogen phosphate or alkaline component of other pH buffering agent and 1-50 ml of injection water.

The improved process of treating oil field effluent for reinjection features aerobic biochemical treatment and subsequent filtering. The microbes for the aerobic biochemical treatment include Bacillus cereus, Corynebacterium, Bacillus subtilis and Pseudomonas alcaligenes, and the inflow water has pH value controlled in 6-9. The process can reach oil field water injection standard, including oil not more than 2 mg/l, SS not more than 1 mg/l and grain size mid value not greater than 1 micron. The present invention has the advantages of simple technological process, low cost, stable treating effect, no secondary pollution, etc., and is especially suitable for use in oil field.

The present invention relates to an infatmul containing docetaxel and its preparation method. Said preparation can be directly used for intravenous injection. At the same time of that it is used as medicine for curing tumor disease said preparation also can provide nutrients for patient. The weight volume concentration range of docetaxel contained by said preparation is 0.1-1.0 mg/ml, and its specification is that 1-500 mg of active component docetaxel is contained. Said infatmul composition includes docetaxel, vegetable oil, phospholipids and injection water, at the same time the components of glycerin and group emulsion, etc. can be added, in which the optimum group emulsion is poloxamer 188. Besides, said invention also provides the concrete steps of its preparation method and its application in preparation of medicine for resisting tumor.

The invention relates to an oxiracetam injection solution which comprises 1 weight portion of oxiracetam, 1.5 to 5.5 weight portions of glucose and 50 to 100 weight portions of injection water, wherein, the pH value of the injection solution is 3.8 to 4.5. The invention also provides a preparation method of the oxiracetam injection solution which comprises the steps as follows: a) the bulk drug oxiracetam and the glucose or sodium chloride are solved in the injection water under the temperature of 40 DEG C to 70 DEG C to obtain dissolved solution; b) the dissolved solution is cooled to the room temperature, active carbon is added for decolorizing, the active carbon is removed by filtering, proper quantity of water is complemented, and citric acid and sodium citrate are added to adjust the pH value to 3.8 to 4.5 to obtain the dissolved solution with adjusted pH value; c) an intermediate product after encapsulation is sterilized; and d) the product after the sterilization is packed. The oxiracetam injection solution manufactured by the prescription and the preparation method of the invention has good storage stability.

The invention discloses a pharmaceutical composition containing 18 amino acids. The pharmaceutical composition is characterized in that a compound amino acid injection (18AA-V) with varied concentration is prepared by using the following components according to the following ratios of parts by weight: 2.89 of arginine hydrochloride, 2.46 of histidine hydrochloride, 3.79 of leucine, 1.70 of isoleucine, 3.33 of lysine hydrochloride, 2.83 of phenylalanine, 1.97 of threonine, 1.36 of valine, 1.06 of methionine, 0.39 of tryptophan, 3.24 of glycine, 1.88 of alanine, 1.00 of proline, 0.11 of tyrosine, 0.67 of serine, 0.44 of cysteine hydrochloride, 1.15 of aspartic acid, 1.97 of glutamic acid, 50 of xylitol, 0.10 to 0.30 of citric acid and injection water with proper amount. The pharmaceutical composition does not contain a sulfite antioxidant so that the pharmaceutical composition is clinically used in a safer manner. After an accelerated test and a quality test, results show that the pharmaceutical composition is as stable as or more stable than like products (18AA-V) which are sold in the markets and contain sulfites.

The invention relates to a preparation method of a profile control agent for oil field deep temporary blocking, belonging to the technical field of petroleum exploration. Phenolic resin, organic chromium, glacial acetic acid, resorcinol and polyacrylamide are firstly weighed according to mass percentages, then the weighed polyacrylamide is slowly added in weighed water and stirred, and the weighted other retarding crosslinking agents are sequentially added and stirred. The profile control agent for the oil field deep temporary blocking prepared by the method has the advantages that the gelling time of the profile control agent is controllable during the use by adding different crosslinking agents, the gelling time is 8-48 hours; the gel strength is great, the gel is difficult to break, and the validity period is 1-2 years; the profile control agent can effectively change the water flow of injection water of a formation and have great absorption and blocking effects on the formation.

The invention relates to an intralipid injection which contains soya oil, middle chain triglyceride, olive oil, and fish oil, wherein it comprises 48-72g.L soya oil, 48-72g/L middle chain triglyceride, 40-60g/L olive oil, and 24-36g/L fish oil, 108-162 mg/L dl-alpha-tocofecol, 9.6-14.4g/L lipovitellin, 22.5-27.5g/L pure glycerin, 240-360mg/L sodium oleate, 18-22mg/L caustic soda, and 1L injection water. The ratio between w-6 and w-3 aliphatic acid is 3.0-2.2:1. The invention optimizes and balances the aliphatic acid mode.

The invention relates to an oil-displacing composition and a preparation method thereof, which mainly solve the problems in the prior art that the oil-displacing agent comprising polymer has poor temperature resistance, poor salt resistance and low oil displacement efficiency. The oil-displacing composition comprises the following ingredients by weight percent: (1) 0.01 to 3 percent of oil-displacing inorganic nanocomposite polyacrylamide, (2) 0.01 to 5 percent of fatty alcohol polyoxyethylene ether carboxylate surface active agent and (3) 92 to 99.98 percent of oil field injection water, wherein the ingredient (1), i.e. the oil-displacing inorganic nanocomposite polyacrylamide comprises the following ingredients in parts by weight: a) 1 to 10 parts of inorganic nanometer material which is selected from carbon nano pipes, nano zinc oxide, nano silicon oxide or nano titanium oxide, and b) 90 to 99 parts of polyacrylamide; and the molecular formula of the ingredient (2) is RO(CH2CH2O)nCH2COOM, wherein in the formula: R is alkyl of C12 to C18, n is an adding number of ethoxy group EO and is an integer of 2 to 8. The oil-displacing composition can well solve the problems and can be used in the tertiary recovery of an oil field.

The present invention relates to a lansoprazole freeze-dried powder injection and its preparation method. Said lansoprazole freeze-dried powder injection contains ethylene diamine tetraacetic acid (EDTA) and/or its salt, and is made up by using active component lansoprazole, ethylene diamine tetraacetic acid and/or its salt, stabilizing agent, excipient, pH regulator and injection water through a certain preparation process. Besides, said invention also provides the concrete steps of said preparation process.

The present invention relates to a fuliconazole injection. Said injection includes the following components; (by wt%) fuliconazole 0.01-20%, cyclodextrin or cyclodextrin derivative 0%-60%, water-soluble excipient 0-75%, solubilizer 0%-20% and the rest is injection water. Its preparation method includes the following steps: mixing the above-mentioned raw materials, using active carbon to remove impurity and heat source, filtering, fine filtering, filling, sterilizing, checking and putting in storage.

The invention relates to a bendamustine hydrochloride freeze-dried powder injection and its preparing method. The prepared bendamustine hydrochloride freeze-dried powder injection is used for chronic lymphocytic leukemia (CLL) and in the treating process of rituximab/ MabThera or containing the same, or for inert B cell non hodgkin lymphoma (B-NHL) patients whose illness state still deteriorates during the treatment period in six months. The bendamustine hydrochloride freeze-dried powder injection contains bendamustine hydrochloride and uses the mixed solvent composed of the tertiary butanol and the injection water in the preparation process. The concentration of the bendamustine hydrochloride in the mixed solvents is 5-10 mg/ml. The volume ratio of the solvents is: 5-50% of tertiary butanol and the balance of injection water. The preparation process is that: measuring the tertiary butanol, adding injection water, mixing evenly, cooling to 2-15 DEG C, heat preserving, then adding the bendamustine hydrochloride, stirring to dissolve, filtering, filling, plugging, disking, freeze-drying, pressing the plug, out box, tying and packing.

The invention provides a novel nanometer lipid carrier containing a taxol substance for injection and a method for preparing the same. Mixed lipids are used as materials; liquid lipid and solid lipid with different physical states are mixed according to the proportion of between 0 and 100 percent to obtain the nanometer lipid carrier (NLC) which is prepared by a mixed solid-liquid substrate and has different crystalline states; and microemulsion (ME) prepared by a full liquid substrate and solid lipid nanoparticles (SLC) prepared by a full solid substrate are also obtained. The new nanometer lipid carrier can increase or improve the encapsulation efficiency and the release property of drug and has the characteristics of high drug-loading amount, good stability and low toxicity. The taxol substance, a carrier material, a surfactant and injection water are respectively stirred to form two phases of oil and water; the oil phase and the water phase are mixed and emulsified to obtain primary emulsion; further taxol substance nanometer lipid carrier injection or suspension type injection which meets the requirement of intravenous injection is prepared by a high-pressure homogenization process; or a protective agent is added into the injection to prepare solid powder for injection by vacuum freeze drying or spray drying; before use, normal saline, a glucose solution or a Ringer solution is used for dilution; and the solid powder can be rapidly dissolved. Experiments show that the prepared nanometer lipid carrier containing the taxol substance for injection can improve targeting property to tumor cells, improve curative effect, greatly reduce toxic and side effects, has simple preparation process and low cost and is suitable for large-scaled industrialized production.

The invention relates to a melphalan freeze-dried powder injection and a preparing method thereof. The prepared melphalan freeze-dried powder injection is used for treating multiple myeloma, oophoroma, polycythemia vera, local malignant melanoma and soft tissue sarcoma. The melphalan freeze-dried powder injection contains melphalan, utilizes the mixed solvent composed of the tert-butyl alcohol and the injection water in the preparation process, wherein the concentration of the melphalan in the mixed solvents is 10-25 mg/ml; and the volume ratio of the solvents is: 5-50% of tert-butyl alcohol and the balance of injection water. The preparation process comprises the following steps: measuring tert-butyl alcohol, adding injection water, mixing evenly, cooling to 2-15 DEG C, heat preserving, adding melphalan, stirring and dripping 0.5 mol hydrochloric acid to dissolve, filtering, filling, plugging, disking, freeze-drying, pressing plug, out box, tying and packing after quality test qualification.

The preparation method of etomidiate aliphatic emulsion injection includes the following steps: placing soybean oil and lecithin into a container, heating, uniformly stirring them to obtain oil phase, adding etomidate into the oil phase to make them into mixture liquor; placing injection water into another container, adding glycerin, uniformly stirring them and filtering to obtain water phase; under the condition of high-speed stirring adding the above-mentioned mixture liquor into the water phase to obtain initial emulsion, regulating pH value, high-pressure homogenizing, filtering, filling into ampule, introducing nitrogen, sealing and sterilizing so as to obtain the invented product.