Интеллектуальная собственность

FIELD: oil production, specifically, isolation of water encroached strata and absorption zones in well. SUBSTANCE: flooding and cyclic alternating pumping of components of polymer-dispersed system is carried out in correspondence with process. This system carries aqueous solution of partially hydrolyzed polyacrylamide and clay suspension. Each of then is forced through stratum with buffer volume of water. Binding agent is injected into polymer-dispersed system, expelling agent is pump-fed. Binding agent is additionally injected into buffer volume of water. It is injected or forced with aqueous solution of partially hydrolyzed polyacrylamide and/or clay suspension during one, several or all cycles of pumping of components of polymer-dispersed system. EFFECT: more complete extraction of oil from zones otherwise non effected. 1 tbl Подробнее

Полезная модель относится к фармацевтической технологии, а именно к линии (устройству) для получения лекарственного средства на основе пектина и может быть использована в фармацевтической промышленности.Линия включает расположенные в технологической последовательности:- реактор-смеситель для получения пектата натрия, соединенный с емкостью для раствора щелочи;- роторно-пульсационный аппарат, соединенный с емкостями для растворов CaCI и FeSO;- сборник для осаждения полигалактуроната;- нутч-фильтр, соединенный с приемником водно-этанольного раствора;- центрифугу, соединенную с приемником водно-этанольного раствора,- сушильную установку;- измельчитель;- реактор-смеситель для получения раствора Na-, Fe-, Са-полигалактуроната;- установку мембранной фильтрации;- блок розлива и укупорки тары;- автоклав.Полезная модель позволяет получать фармацевтическую субстанцию Na-, Fe-, Са-полигалактуроната и лекарственную форму (1% водный раствор) на его основе в едином технологическом цикле." Подробнее

FIELD: cleaning devices. ! SUBSTANCE: invention relates to methods for cleaning gasoline, kerosene, diesel fractions, light oils and gas condensates from acidic impurities and can be used in the refining, oil producing and petrochemical industries. In the described method of alkaline purification of hydrocarbons from acidic impurities, an aqueous solution of potassium hydroxide with a concentration of 40–50 wt. % Is used as the alkaline agent, and as a by-product the concentrate of potassium salts of organic acids is released, the alkaline solution, after settling from the concentrate of salts of organic acids, is reused, the concentration of the alkaline solution is maintained by constantly adding to it the calculated amount of solid potassium hydroxide, and the reaction water accumulated in the alkaline solution, when absorbed in acidic impurities, is subjected to gas or stripping. ! EFFECT: technical result is obtaining as a by-product a concentrate of potassium salts of organic acids and the elimination of the continuous formation of toxic wastewater. ! 1 cl, 1 ex, 1 tbl Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: invention relates to oil-producing industry. Method of thermochemical treatment of the formation includes the injection of an aqueous solution of sodium nitrite into the reservoir in the following ratio of components, wt. %: sodium nitrite 17–46; fresh water the rest, and an aqueous solution of sulfamic acid with a pH of 4.0–5.0 in the following ratio of components, wt. %: sulfamic acid 10–50; sodium hydroxide or aqueous ammonia 8–30; ammonium acetate 1–7; fresh water else. These aqueous solutions are injected into the formation in volumes that provide stoichiometric interaction of sodium nitrite and sulfamic acid. ! EFFECT: improving the efficiency of thermal effects on the reservoir by increasing the time to reach the maximum temperature of heating the reaction mixture of aqueous solutions of sodium nitrite and sulfamic acid. ! 1 cl, 1 tbl Подробнее

FIELD: oil, gas and coke-chemical industries. ! SUBSTANCE: invention relates to the oil industry, in particular to methods for extracting oil from oil reservoirs with heterogeneous permeability. In one embodiment, in the method of extracting oil from oil reservoirs that are not uniform in permeability, including the preparation and injection of a micellar solution - MP containing hydrocarbon fluid - SL, surfactant, isopropyl alcohol and fresh water, pre-determine the initial injection capacity of the injection well - APSN at the initial injection pressure and water salinity - MV, with NPNS 100–250 m3/d and MV 0.15 g/dm3 MP pumped in a volume of 2–10 m3 on 1 m thickness of the productive formation - m3/m CCI, as a surfactant used ethoxylated alkylphenol with a degree of ethoxylation of 4 or 6, or a water-alcohol solution of a mixture of monoalkyl ethers of polyethylene glycol 90 wt. % and alkyldimethylbenzylammonium chloride 10 wt. %, or an aqueous solution of a mixture of oligomers C8-C10 alkyl glucosides with a mass fraction of the basic substance of at least 70 %, or alkylpolyglucoside C8-C10 in the following ratio, wt. %: UZH is 25.0–40.0, the specified surfactant is 10.0–20.0, isopropyl alcohol is 1.0–10.0, fresh water is the rest being, then pumped the rim of an aqueous solution of polyacrylamide - PAA, containing, % by weight: PAA is 0.1–1.5, water with mineralization 0.15 g/dm3 is the rest, when the ratio of the above solution and the rim 1:(1–10) by volume and forced into the reservoir with mineralized water 0.15 g/dm3 in the amount of 15 m3. In another embodiment, in the specified method with NPNS 250–600 m3/d and MV 0.15 g/dm3 pump the rim of the aqueous dispersion of wood flour - VDDM with a concentration of 0.5–3.0 wt. % or aqueous solution of PAA with clay powder - GP containing, % by weight: PAA is 0.01–1.0, GP is 1–10, water with mineralization 0.15 g/dm3 is the rest being, or an aqueous solution of PAA with chromium alum - HKK, containing, % by weight: PAA is 0.1–1.0, HCC is 0.005–0.3, water with a salinity of 0.15 g/dm3 - the rest being, to increase the injection pressure by 5–20 % of the initial injection pressure - IIP, then the above-mentioned MP is pumped in a volume of 2–10 m3/m TPP, then pumped the rim of an aqueous solution of PAA, containing, % by weight: PAA is 0.1 to 1.5, water with a salinity of 0.15 g/dm3 is the rest being, when the ratio of the above solution and the rim is 1:(1–10) by volume and is forced into the formation with water with a salinity of 0.15 g/dm3 in the amount of 15 m3. According to the third option in the specified method with NPNS 100–250 m3/d and MV 0.5–300 g/dm3 pumped a fresh water rim in a volume of 15 m3, then MP in the volume of 2–10 m3/m CCI, then the rim of an aqueous solution of PAA, containing, % by weight: PAA is 0.1–1.5, water with mineralization 0.5–300 g/dm3 is the rest being, when the ratio of the above solution and the rim is 1:(1–10) by volume and is forced through with mineralization water of 0.5–300 g/dm3 in the amount of 15 m3. In the fourth option in the specified method with NPNS 250–600 m3/d and MV 0.5–300 g/dm3 pump the rim of VDDM with a concentration of 0.5–3.0 wt. % or an aqueous solution of PAA with GP containing, % by weight: PAA is 0.01–1.0, GP is 1–10, water with a salinity of 0.5–300 g/dm3 is the rest being, or an aqueous solution of PAA with CCK containing, % by weight: PAA is 0.1–1.0, HCC is 0.005–0.3, water with mineralization 0.5–300 g/dm3 is the rest being, to increase the injection pressure by 5–20 % of the IIP, then pump the fresh water rim in a volume of 15 m3, then specified MP in the amount of 2–10 m3/m CCI, then pumped the rim of an aqueous solution of PAA, containing, % by weight: PAA - 0.1–1.5, water with mineralization 0.5–300 g/dm3 is the rest being, when the ratio of the specified solution and the rim 1:(1–10) by volume and forced into the reservoir with water with a salinity of 0.5–300 g/dm3 in the amount of 15 m3. ! EFFECT: technical result is an increase in oil recovery, improving the efficiency of the formation coverage by the impact and expanding the technological capabilities of the method. ! 4 cl, 4 ex, 8 tbl Подробнее

FIELD: chemistry; physics. ! SUBSTANCE: invention relates to the field of physicochemical processes, in particular, to a method for producing dynamic polymeric ultrafiltration membranes. Method of obtaining a dynamic ultrafiltration membrane nylon-polystyrene for the separation of water-oil emulsions, comprising a microporous substrate, onto which a dynamic layer is applied, characterized in that the dynamic layer was obtained by forming a semi-permeable layer on the surface of the porous basement from suspended polystyrene microparticles present in the filtered aqueous solution of acetone with a particle size of 142–452 nm, which are in dynamic equilibrium with a solution that also contains distilled water in a 1:1 ratio, in this case, a polymeric microfiltration membrane of nylon with a pore size of 0.45 mcm was used as a microporous substrate. ! EFFECT: technical result is increasing the speed and degree of separation of water emulsions. ! 1 cl, 4 dwg Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: invention relates to the oil and gas industry and can be used for pumping water or stimulating oil recovery by acidizing wells, in particular with an aqueous solution of hydrochloric acid. Hydraulic vibrator for foaming acid, comprising a housing with a fixedly mounted barrel with a bottom hole and a slide valve fitted with ball bearings on the barrel, made with slotted slots angled to their generator. Slots of the spool are located in the opposite direction to the slotted recesses of the trunk. Disk located coaxially to the body under the barrel and made with openings distant from the center at the same distance is fixed to the inner wall of the housing motionless by means of locking screws wrapped in threaded samples made in the housing. There are radially directed plates on the upper wall of the disk, the length of each plate is less than the distance from the outer wall of the disk to the wall of the opening of the disk. ! EFFECT: enhanced functionality and increased oil flow from the reservoir is provided. ! 1 cl, 4 dwg Подробнее

Заявленное техническое решение относится к области аналитической химии и фармакологии, может быть использовано для определения антрациклиновых препаратов, таких как доксорубицин, в лекарственных препаратах и плазме крови. Технической задачей создания данной полезной модели является упрощение конструкции сенсора, снижение стоимости сенсора, снижение предела обнаружения, снижение продолжительности анализа, повышение воспроизводимости измерения сигнала сенсора. Технический результат заключается в упрощении конструкции сенсора, в обеспечении широкого диапазона определяемых концентраций лекарственных препаратов и в снижении предела обнаружения, в снижении стоимости сенсора, в повышении воспроизводимости сигнала сенсора. Техническая задача решается за счет наличия на поверхности стеклоуглеродного электрода электропроводящего слоя электрополимеризованного полианилина, содержащего комплекс ДНК с метиленовым синим, что облегчает электронный обмен на границе раздела фаз, и за счет нахождения на поверхности сенсора электрополимеризованной пленки в отсутствие дополнительных компонентов, которые могут приводить к утолщению и неоднородности мембраны. Наноструктурированная мембрана, состоящая из полиэлектролитного комплекса, включающего электрополимеризованный полианилин и супрамолекулярный комплекс ДНК с метиленовым синим, обладает принципиально новыми свойствами по связыванию и распознаванию аналитов. Амперометрический сенсор для определения антрациклиновых препаратов в водном растворе, фармпрепаратах и плазме крови на основе стеклоуглеродного электрода в тефлоновом корпусе, рабочая область которого покрыта слоем электрополимеризованного полианилина, характеризующийся тем, что слой электрополимеризованного полианилина включает комплекс ДНК с метиленовым синим. Такое выполнение электрохимического сенсора обеспечивает технический результат - простоту конструкции сенсора, широкий диапазон определяемых концентраций и низкий предел обнаружения, низкую стоимость сенсора - за счет использования амперометрического способа детектирования сигнала сенсора, за счет использования дешевого и доступного реактива в составе мембраны и за счет снижения количества ДНК в составе пленки, высокую воспроизводимость сигнала сенсора за счет однородной толщины мембраны и за счет равномерного распределения компонентов в мембране, изготовляемой в одну стадию из небольшого количества компонентов. 1 ил. Подробнее

Ранцевый аэрозольный огнетушитель, содержащий основание, закрепленную на нем емкость для жидкого огнетушащего вещества, источник вытесняющего газа, запорно-пусковое устройство, отличающийся тем, что емкость жидкого огнетушащего вещества выполнена в виде двух баллонов соединенных между собой магистралью на которой установлено запорно-пусковое устройство с манометром, само запорно-пусковое устройство связано с гибким шлангом, который на другом конце имеет пусковой клапан с сопловым устройством, а вытесняющим газом является двуокись углерода, кроме того, жидкое огнетушащее вещество представляет собой водный раствор хлорида магния или хлорида кальция. Подробнее

FIELD: oil industry. ! SUBSTANCE: invention relates to oil industry, namely to methods of limiting water inflow in well, using liquid glass, and can be used in edge or injected sealing formation water pressure maintenance system, as well as elimination of flooding cone. Method of repair and insulation works in well involves pumping of liquid glass and gel-forming regulator into isolated interval. Pumping is performed in cycles, number of which depends on intake capacity of isolated interval. Liquid glass is water solution of liquid glass, diluted with fresh water in ratio 1:2, gel-forming regulator is aqueous solution of calcium chloride with concentration of 30-35 % and density 1,282-1,337 kg/m3 or chloro-calcium type formation water, brought to density of 1,282-1,337 kg/m3 by addition of calcium chloride, at following ratio of components in pts. vol: aqueous solution of liquid glass 5.7-6.0, aqueous solution of calcium chloride with concentration of 30-35 % and density 1,282-1,337 kg/m3 or chloro-calcium type formation water, brought to density of 1,282-1,337 kg/m3 by addition of calcium chloride, 0.9-1.3. ! EFFECT: technical result consists in improvement of efficiency and prolonging effect of repair in isolating works by means of water inflow blocking with extended waterproofing screen, resistant to pressure drops. ! 1 cl, 2 tbl Подробнее

FIELD: electrical engineering. ! SUBSTANCE: invention relates to a method for fabrication of nickel fibre electrode base with developed fibre structure, intended mainly for chemical current sources and catalysts; according to the said method one performs synthesis of nickel fibres in a water solution containing nickel ions in the presence of an alkali, a pH buffer, a surfactant in the presence of inhomogeneous magnetic field with magnitude equal to 0.01 - 1 T, Nickel ions recovery with a recovery agent proceeds at a temperature of 70 - 160°C during a period of time equal to 0.5 min - 3 h, the ratio of the surfactant introduced being within the range from 8*10-4 M to 5*10-2 M. The nickel fibre electrode base fabricated in accordance with the proposed method possesses developed (up to 12 m2/g) fibre surface consisting of conic-shaped particles, heir height varying within the range from 50 to 2500 nm, the cone aperture angle being 5° - 20°, the cone point curvature radius - 5 - 50 nm, the average distance between the cones - 80 - 1500 nm, the fibres diameter - 0.2 - 20 mcm and/or 60 - 100 nm. ! EFFECT: method ensures the possibility to fabricate nickel fibres with preset properties enabling increase of the specific capacity of electrode base made of such fibres. ! 2 cl, 7 dwg, 1 tbl, 7 ex Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: during balancing of water-intake capacity of two wells there chosen is a pair of wells with low water-intake capacity and high water-intake capacity; working medium is pumped to the well with low water-intake capacity, drained from the well and pumped to the well with high water-intake capacity. As working medium there used is water solution of surface-active substance with density of more than 1.17 g/cm3 and solvent of paraffin. After the working medium is pumped to the well with low water-intake capacity, process exposure takes place, and after the working medium is drained from the well with deposits removed from the well in the form of viscous emulsion, the viscous emulsion is pumped to the well with high water-intake capacity; geophysical investigations are performed on both wells and wells are put into operation. ! EFFECT: increasing balancing efficiency of profile of the well water-intake capacity. ! 1 ex Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: well flushing method involves flushing with water solution of mixture of neonols AF9-12 and AF9-6; ratio of neonols AF9-12 and AF9-6 in mixture is 1:(4.5-5.5) respectively; water solution of mixture of neonols of 4.5-5.5% concentration is used; samples of asphalt-resin-paraffin deposits are pre-removed from the well and samples with undisturbed structure are taken; samples are built up on metal plates, submerged into the above solution and swelling time of samples by spectrophotometry method to balanced condition and the formation time of particles with asphalt-resin-paraffin deposits of minimum sizes in the flow of the above solution is determined, and bath of the above solution is arranged before flushing in the well; minimum time of bath is accepted equal to swelling time of samples to balanced state, and maximum time - during the formation period of time of particles with minimum sizes of asphalt-resin-paraffin deposits in flow of the above solution. ! EFFECT: increasing well flushing efficiency. ! 3 ex, 1 tbl, 1 dwg Подробнее

FIELD: metallurgy. ! SUBSTANCE: procedure consists in extracting salts of alkali metals and silver by picrate extraction at intensive mixing. As extractants for extraction there are used modified morpholide and pyrrolidide fragments by lower ring of stereoisomers n-tert-butylthiacalix [4]arene-5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis[(N-pyro-lydyl-carbonyl)-metoxi]- 2,8,14,20-tetrathyacalix [4] arene and 5,11,17,23 - tetra-tert-butyl-25,26,27,28-tetraki [(N-morpholidocarbonyl)-metoxi]-2,8,14,20-tetrathyacalix [4] arene) at their interaction with cations of alkali metals and silver; there are created nano-dimension aggregates of 84 and 153 nm of composition AxBy (ABn, n=x/y), where A is cation of metal, B is molecule of extractant, n is stoichiometry of complex, x and y is number of particles of metal and extractant correspondingly. ! EFFECT: increased selectiveness of extraction of cations of lithium and silver and increased extracting properties of derivatives of compound by means of creating dissolved in organic solvent nano-dimension aggregates containing cations of univalent metals. ! 6 dwg, 3 ex Подробнее

FIELD: chemistry. ! SUBSTANCE: invention pertains to an improved extraction of lanthanides from water solutions using a temperature induced phase separation method, which can be used in medicine during analysis of physiological fluids, in tomography, in ecological monitoring of waste water and soil, at defined stages of recycling nuclear wastes. The method lies in adding to a water solution of lanthanide, non-ionic surfactant of Triton X100 and oxyethylated calixarene nKOm with general formula: , where: if n=4, oxyethylation degree m=16, if n=9, oxyethylation degree m=8, 9, 12, 16. The temperature of the solution is brought to the turbidity point and separation of the micellar phase. ! EFFECT: improved extraction of lanthanides from water solutions. ! 1 cl, 5 tbl Подробнее

FIELD: extraction of copper from waste solutions of electroplating and metallurgical industries. SUBSTANCE: method involves copper deposition (II) with aluminium; washing and drying. Deposition procedure is conducted by means of aluminum preliminarily activated in alkali and having particles equal to or less than 50 microns at pH value of 9.5-13.0 in the presence of agent forming copper complex (II) stable over the range of mentioned pH values with copper: aluminum: agent molar ratio of 1:(1-1.2):(5-10). Method allows copper to be produced from used industrial and aqueous solutions with wide range of copper ion concentration (II), mol/l:10-4 - 10-1 for 6-20 min and at room temperature in the form of metal powder with purity of produced copper of up to 99.9%. Also, method allows content of copper (II) in industrial waste water to be reduced up to maximum permissible concentration. Copper produced by method may be used in powder and nonferrous metallurgy, electroplating etc. EFFECT: increased efficiency and improved ecology control. 1 tbl, 7 ex Подробнее

FIELD: oil and gas production. SUBSTANCE: invention consists in that, when injecting into bed aqueous solution of polyacrylamide, aqueous solution of aluminum chloride and then aqueous solution of polyacrylamide together with chromium acetate are additionally injected. In another embodiment of invention, first injected are aqueous solutions of aluminum chloride, polyacrylamide, and aluminum chloride and then polyacrylamide together with chromium acetate, clayey suspension and finally polyacrylamide with chromium acetate. EFFECT: extended choice of materials for selective insulation of formation water permitting increased level of extra oil recovery. 4 cl, 1 tbl Подробнее

Изобретение относится к использованию биологически активных веществ в пчеловодстве и заключается в использовании в качестве ингибитора развития паразитического клеща Varroa jacobsoni экдистерона, который вносится в ячейку с личинкой перед запечатыванием в виде водного раствора. Обработка личинок пчел экдистероном позволяет снизить заклещеванность пчелиного расплода и является эффективным экологически безопасным методом борьбы с этим заболеванием пчел. 3 табл. Подробнее

Изобретение относится к способам очистки экстракционной фосфорной кислоты от органических окрашивающих примесей и может быть использовано в производстве фосфорной кислоты и ее солей, применяемых в различных отраслях промышленности, в том числе и в пищевой промышленности. Сущность изобретения заключается в способе очистки экстракционной фосфорной кислоты от органических окрашивающих примесей, который включает предварительное введение азотной кислоты в экстракционную фосфорную кислоту с последующей обработкой последней водным раствором перекиси водорода при нагревании до температуры не менее 40oC, при этом массовое соотношение азотной кислоты к перекиси водорода и фосфорной кислоте составляет (0,0003 - 0,001):(0,002 - 0,008):1. Способ успешно позволяет решить проблему создания высокоэкономичной экологически чистой технологии очистки экстракционной фосфорной кислоты от органических окрашивающих примесей с точки зрения достижения оптимальных показателей процесса, минимизации затрат, а также обеспечения современных требований охраны окружающей среды. 3 табл. Подробнее

Изобретение относится к бурению нефтяных и газовых скважин. Способ осуществляют следующим образом: устанавливают на забое скважины ванну из смеси водного раствора метасиликата натрия с эфиром целлюлозы, затем осуществляют последовательную закачку вязкоупругого разделителя, состава-разрыхлителя, гидроизолирующе-закрепляющего состава и кольматирующего состава. В качестве вязкоупругого состава используют состав, содержащий, мас.%: реагент-полисахарид 1,0 - 5,0, комплексообразователь 0,15 - 2,0, утяжелитель 1,0 - 30,0, вода - остальное. В качестве кольматирующего состава используют состав, содержащий, мас. ч: цемент 100, оксиэтилцеллюлоза 0,3 - 0,4, вода 164 - 174. Технический результат: повышение качества подготовки скважины к цементированию, пробуренной с промывкой любым типом раствора, за счет повышения степени замещения бурового раствора вязкоупругим разделителем, снижения проницаемости фильтрационной корки и повышения ее устойчивости к воздействию цементного раствора при одновременном повышении ее химического сродства к цементу, а также за счет снижения отрицательного влияния буферных жидкостей и цементного раствора на продуктивность скважины. 4 з.п.ф-лы, 3 табл. Подробнее