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Medvedev, Moscow
Anatoly Medvedev, Moscow RU
| Patent application number | Description | Published |
|---|---|---|
| 20090286700 | Heterogeneous Proppant Placement in a Fracture with Removable Channelant Fill - A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant ( | 11-19-2009 |
| 20110083849 | HETEROGENEOUS PROPPANT PLACEMENT IN A FRACTURE WITH REMOVABLE CHANNELANT FILL - A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting a first treatment fluid comprising a gas and substantially free of macroscopic particles through a wellbore to initiate a fracture in a subterranean formation; injecting a second treatment fluid comprising proppant and channelant through the wellbore into the fracture; placing the proppant in the fracture in a plurality of proppant clusters forming pillars spaced apart by the channelant; and removing the channelant to form open channels around the pillars for fluid flow from the subterranean formation through the fracture toward the wellbore. | 04-14-2011 |
| 20110114313 | HETEROGENEOUS PROPPANT PLACEMENT IN A FRACTURE WITH REMOVABLE CHANNELANT FILL - A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant ( | 05-19-2011 |
Anatoly Vladimirovich Medvedev, Moscow RU
| Patent application number | Description | Published |
|---|---|---|
| 20090014176 | PROPPANT AND METHODS OF USE - A proppant consists of a core part and shell of a material different from the material of the core part. The shell comprises a soft material attached rigidly to the core part in such a way that the total surface area of the points where the shell and the core part are joined is less than the surface area of the core part. | 01-15-2009 |
| 20100282464 | METHOD OF PROPPING AGENT DELIVERY TO THE WELL - This invention relates to the production of minerals, more specifically, to the production of hydrocarbons, by hydraulic fracturing of the rock, and can be used for the optimization of formation fracturing crack processing conditions. Under this invention, the main stream of the propping agent suspension in the fluid at the mixer output is split into at least two flows having different volume delivery rates, and before the delivery to the hydraulic fracturing zone said flows are comingled. | 11-11-2010 |
| 20110036571 | PERFORATION STRATEGY FOR HETEROGENEOUS PROPPANT PLACEMENT IN HYDRAULIC FRACTURING - Hydraulic fracturing an individual reservoir fracturing layer of a subterranean formation to produce heterogeneous proppant placement is given in which pillars of proppant are placed such that the pillars do not extend the entire height of the fracture (for a vertical fracture) but are themselves interrupted by channels so that the channels between the pillars form pathways that lead to the wellbore. The method combines methods of introducing slugs of proppant-carrying and proppant-free fluids through multiple clusters of perforations within a single fracturing layer of rock, with methods of ensuring that the slugs exiting the individual clusters do not merge. | 02-17-2011 |
Dmirty Medvedev, Moscow RU
| Patent application number | Description | Published |
|---|---|---|
| 20080315689 | ULTRA SHORT HIGH VOLTAGE PULSE GENERATOR BASED ON SINGLE OR DOUBLE SPARK GAP - A method and system for the generation of high voltage, pulsed, periodic dielectric barrier or corona discharges is capable of being used in the presence of conductive liquid droplets and over contaminated or uneven surfaces. The method and system can be used, for example, in different devices for cleaning of gaseous or liquid media or for surface sterilization using pulsed dielectric barrier or corona discharge. The pulsed power generator includes a storage capacitor a high voltage switch operably connected to said storage capacitor, and a charger of the storage capacitor which generates charging pulses until a spark gap breakdown occurs which gives a feedback signal to stop further charging until the beginning of the next charging cycle. | 12-25-2008 |
Dmitry Medvedev, Moscow RU
| Patent application number | Description | Published |
|---|---|---|
| 20100006419 | DEVICE FOR GENERATION OF PULSED CORONA DISCHARGE - The invention is a method and system for the generation of high voltage, pulsed, periodic corona discharges capable of being used in the presence of conductive liquid droplets. The method and system can be used, for example, in different devices for cleaning of gaseous or liquid media using pulsed corona discharge. Specially designed electrodes and an inductor increase the efficiency of the system, permit the plasma chemical oxidation of detrimental impurities, and increase the range of stable discharge operations in the presence of droplets of water or other conductive liquids in the discharge chamber. | 01-14-2010 |
Mikhail Mikhallovich Medvedev, Moscow RU
| Patent application number | Description | Published |
|---|---|---|
| 20080219848 | Propeller - The inventive propeller consists of a shaft comprising at least two hubs which are mounted thereon and provided with blades fixed to each of them. Each blade has a front and rear sharp edges and is embodied in such a way that the greater airfoil thickness thereof is equal to (0.10-0.25)b along the blade span, wherein b is the mean chord of the blade. The greatest airflow thickness of each blade is located in the middle of each mean chord and is twisted around an axis passing through the middles of the mean chords along the blade span. The blade can be fixed to each hub at an angle of <90° with respect to the radius thereof, thereby reducing a local aerodynamic drag and aerodynamic loads. The inventive propeller can be provided with a fixed cylindrical enclosure which embraces all blades and extended in front of the blades of the front hub at a distance which is equal to or greater than the blade span, thereby increasing a torque effect value. | 09-11-2008 |
Oleg Zinovievich Medvedev, Moscow RU
| Patent application number | Description | Published |
|---|---|---|
| 20110204546 | METHOD FOR PRODUCING A METAL-PLASTIC OR BIPLASTIC ARTICLE - The inventive method for producing a metal-plastic or biplastic article, mainly a bottle capsule, involves placing a metal or plastic blank of an article outer shell into a mould and introducing a die into said blank in such a way that a gap clearance is formed between the die surface and the inner surface of the blank. Then, a melt plastic material is introduced into thus formed gap clearance so that it is fully filled and the blank is pressed against the mould inner surface. Furthermore, simultaneously, the metal or plastic outer shell of the article is formed, an internal plastic element is produced, placed in the thus formed outer shell of the article and is fixed therein. | 08-25-2011 |