Интеллектуальная собственность

FIELD: oil and gas production. ! SUBSTANCE: invention refers to device designed for cementing shank end in well. The device consists of shank end with a funnel on top and with a pressure seat beneath, and also of pipe string with a nipple pressure tight interacting with the funnel of the shank end. A disconnector interconnects an upper part of the shank end and a lower part of the pipe string and is made in form of a hollow case with a circular waist wherein there are made radial windows and with a hollow bush inserted into the circular waist and performing pressure tight travels downwards limited with a stop. The hollow bush is fixed with a shear element. Also, the hollow bush with conic external surface narrowing upwards in its lower section has radial channels coming out from the circular waist of the hollow case, when the hollow bush travels downwards. A seat for fall ball is made beneath the hollow bush. In transport position holders entering outside into a circular groove of the funnel are arranged in radial windows of the hollow case; from inside the holders, when sliding, interact with conic surface of the hollow bush. The holders travel inside under force of conic surface of the hollow bush transferred downwards and in working position they come out from interaction with the circular groove of the funnel. ! EFFECT: simple design and reduced number of round trips which reduces material expenditures and total time for operations. ! 2 dwg Подробнее

FIELD: machine building. ! SUBSTANCE: proposed instrument comprises casing, split gage with one part secured on said casing and another one mounted on movable carriage, and carriage drive. Note here that said casing is furnished with stem arranged opposite aforesaid gage and aligned therewith to allow feeding indicator measuring tip thereto. Said indicator is located and preset distance from controlled article face. ! EFFECT: expanded operating performances, possibility to control inner thread diameter play relative to article outer diameter. ! 2 dwg Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: device consists of shank with cone at the top and pressurising seat at the bottom; and valve unit connected to shoe equipped with filter is located below the above seat. At that, aluminium plug is screwed onto lower end of shoe. At that, device includes pipe string with nipple having the possibility of tight interaction with cone of shank, and disconnector. Cone is provided on the inner side with narrowing for nipple and above located pins. Disconnector attaches upper part of shank to lower part of pipe string and is made in the form of hollow housing located on pipe string above nipple, with external slots for the cone pins. When pins are arranged in slots the nipple is located below annular narrowing of cone, in transport position. And when pins are arranged outside slots of cone the nipple is located within the annular narrowing of cone. ! EFFECT: device has simple design, which optimises work technique and saves financial expenses, and allows shortening the time spent on shank cementing in well, owing to minimising the number of lowering and lifting operations. ! 4 dwg Подробнее

FIELD: oil and gas production. ! SUBSTANCE: pumping unit for simultaneous-separate operation of two reservoirs in well comprises flow column, stem, main packer, tail with the main channel, inlet of which is connected to below-packer space, and two pumps, upper of which is arranged as sucker-rod one, and lower one - as electric submersible one. Inlet of plunger pump is communicated with above-packer space. Electric submersible pump is equipped with electric motor, cable and jacket, covering only electric motor and equipped with unit of cable sealing, which is arranged in inner module of pump. Jacket is connected to tail. Discharges of both pumps are communicated to flow column. Additional packet is installed above upper reservoir. Tail is equipped with additional channel, communicating inlet of electric submersible pump with packer side, and outlet of the main channel is communicated to above-packer space. ! EFFECT: possibility to operate upper reservoir by electric submersible pump, and lower one - by sucker-rod pump. ! 1 dwg Подробнее

FIELD: oil and gas production. ! SUBSTANCE: station consists of tubing, of bucket rod string, of packer installed between upper and lower reservoir, of shank end with main channel communicated to under-packer space, and of bucket rod pump with two suction valves, one of which is connected with orifice in pump cylinder. An additional packer is arranged in wells with three developed reservoirs above the main packer. The shank end is equipped with an additional channel communicated with inter-packer space connected to a middle reservoir between the upper and lower reservoirs. The pump cylinder is furnished with the additional suction valve. One of the suction valves of the pump is connected to above-packer space, another one is connected with between-packer space via the additional channel of the shank end, and through the main channel of the shank end the third valve is coupled with under-packer space not communicated with another suction valve. When a plunger travels upward the third suction valve first facilitates entry of the low-pressure reservoir production into the cylinder. Further, when the plunger passes the first orifice in the cylinder there enters production of the middle-pressure reservoir, and upon passing the additional orifice in the cylinder communicated with the additional suction valve production of the high-pressure reservoir enters. ! EFFECT: simultaneous separate development of three reservoirs, each under its own mode. ! 2 dwg Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: shoe-valve for shank, which includes housing with central pass in which there arranged is seat with valve closing when it is supported by the bottomhole. Besides, seat is rigidly fixed relative to the housing which is equipped below the seat with non-tight guide bushing, and from below it is equipped with annular constriction; at that, valve made in the form of plug is equipped from below with the pusher spring-loaded downwards relative to the guide bushing and having the possibility of restricted movement upwards relative to the guide bushing and annular constriction till the valve tightly interacts with the seat. At that, central pass of the housing below the seat is interconnected with external space. ! EFFECT: simple and reliable design of the shoe, tight covering of the bottom of the column during the operation. ! 1 dwg Подробнее

FIELD: oil and gas production. ! SUBSTANCE: invention refers to oil and gas producing industry, particularly to facilities for well completion and can be implemented at installing shank ends-filters in directional and horizontal boreholes of wells. The facility consists of a hollow case, of a sealing unit in form of sections of collars and of a centraliser positioned above the sections of the collars. Also the centraliser located above the shank end from inside is equipped with left hand thread for positioning equipment with an over located cone guide, from outside it is equipped with lengthwise grooves. The sections of the collars are set with tightness on the case. They correspond to composed packing washers, where in between there are installed spring washers. Also diametres of washers in the sections exceed diametre of a column with arranged sections of the collars. The sections of the collars are positioned between rigid circular insertions; in insertions there are made openings for tightening rods. ! EFFECT: minimal metal input and simple design reduce expenditures for fabrication of shank end and for its installation in well; packing unit of shank end compensates heat expansion of shank end and ensures reliable packing and centring in well due to axial mobility and to alternating packing heat resistant washers and steel spring washers. ! 2 dwg Подробнее

FIELD: gas-and-oil industry. ! SUBSTANCE: facility consists of threads for connection with tail piece and of case with central channel with valve element installed therein movably-coaxial to its geometrical axis. The valve element has a pass channel coupled with a cavity of the tail-piece by means of orifices. The valve element is fixed against lengthwise travels with an arrester in from of a lock ring. Also on top the valve element is equipped with a head with external conic circular grooves and is fixed against rotation relative to the case. Orifices for communication of the pass channel of the valve element with the cavity of the tail piece are lengthwise. The pass channel is equipped with a back ball valve. A deflecting spring-loaded disk valve shutting off the central channel is installed in the cavity in the lower part of the case. From below the valve element is equipped with an inclined pusher interacting with and deflecting the disk valve in a transport position. ! EFFECT: raised efficiency, and expanded functionality. ! 2 dwg Подробнее

FIELD: mechanics. ! SUBSTANCE: invention refers to oil and gas industry, and namely to devices for lowering casing strings, and namely casing liners in order to seal the area behind the string. It includes a hollow housing, perforated connection pipe and liner, which are connected to each other by means of clamps. Hollow housing is connected to disconnecting piece which is connected to transportation column with top cementing plug installed in it. Disconnecting piece is equipped with a shell from above, which has the possibility of tight interaction with internal walls of hollow housing, and from below it is equipped with a hollow connection pipe and a hollow stock with holes telescopically installed in it from below. Hollow stock has the possibility of interacting with check valve when in operating position. Packer and anchor are installed in upper part of hollow housing. ! EFFECT: possibility of simplifying the device design, owing to which number of process operations is reduced and probability of accidents occurrence in well is decreased. ! 2 dwg Подробнее

FIELD: electricity. ! SUBSTANCE: electric connector includes interference suppression filters, built-up housing and earthing plate. In internal area of the housing part in which there arranged is earthing plate there is the stop made owing to decreasing inner sizes of housing which are less than external sizes of earthing plate, on which there installed and soldered to the housing along the whole outline is earthing plate. In tail portion of filter there has been formed a shoulder between which and the tail portion there is a thinning with cross section which is less than cross section of tail portion. Thinning is made in the form of two-sided groove whereto a slot of combed insulator enters. On tail portions of filters there put on is insulator positioning the filter tail portions. Parts of built-up housing of connector are combined with each other by means of threaded and soldered connections. Filling-and-drain holes for the compound filling are located in the plane passing between the plane of location of tail portions ends of contact pins of connector plug and plane of location of soldering point of interference suppression element to the pin part of the filter. For soldering the filter pin to tail portion on contact pin, filter housing to earthing plate, parts of connector housing to each other, earthing plate to connector housing there have been used solder metals with soldering temperature which is less than soldering temperature of solder metal used for soldering interference suppression element to filter pin. ! EFFECT: improving electrical parametres, reliability and operating characteristics. ! 11 cl, 2 dwg Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: invention refers to oil and gas industry and can be implemented at operation of well, at performing intensification operations, at operations preventing settling of pyrobitumen-resinous sediments in bottomhole zone of reservoir bed, and at reduction of fluid watering in highly water flooded wells. The essence of the invention is like follows: the facility contains a flow column, a sucker-rod pup, and a tail-piece with a filter. A doubled piston is installed on the tail piece 5-10 m above perforation interval; the piston has a spring between parts of the piston; parts of the piston are designed to relative movement against each other; the piston has exterior diameter 1-5 m less, than interior diameter of the flow column. The bottom of the tail piece is located 5-10 m below the interval of perforation. ! EFFECT: increased yield of well, reduced intensity of production watering, increased efficiency of cleaning of well and bottomhole zone. ! 1 ex, 1 dwg Подробнее

FIELD: oil and gas industry, mechanical engineering. ! SUBSTANCE: suggested invention refers to oil producing industry, particularly to construction and repair of controlled directional wells. The facility consists of a tail piece composed of pipes, and of an upper coupling with a left hand thread. The tail piece is connected to a disconnector in form of a mandrel sub, which is connected to lifting pipes in its upper part, and in its lower part it is connected via the upper coupling to the flow string, consisting of two sections. From below the tail piece is connected to a packer unit assembled of a case with a circular narrowing, of a rigidly installed on the case foot bushing, above which a cylinder elastic collar with circular internal grooves is assembled on the case; this collar rests at the opposite from the foot bushing side on a movable bushing equipped with internal circular grooving, wherein a spring stop ring with cuts is inserted; the cuts interact with counter directed notches of the case. The movable bushing is also equipped with shear bolts installed in lengthwise slots of the case and connected from inside with a guiding bushing arranged inside the case and connected with it by means of shear elements. The facility is easily assembled at the head of the well by means of alternate assembly of the column of the tail piece and units connected to it first, and then by lowering the tail piece of the column and units connected to it into the flow string. ! EFFECT: increased reliability of fixture operation, elimination of round-trip operations causing fitting of before pumping cement groute. ! 5 cl, 3 dwg Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: invention facilitates simplification of design and installation of assembly. The essence of the invention according to one of variants is as follows: the assembly contains a producing tubes column, a cable, a packer, a tail piece and two pumps, the upper one of which is made as a sucker-rod pump, while the lower - as electroloading pump with electric motor, a cable and a case. According to the invention, allowing mixing of beds products, the assembly is equipped with a unit for sealing the cable which is arranged in an input module of the electroloading pump. Besides, the assembly has a channel with a back valve for connecting of output of the electroloading pump with the producing tubes column, and a channel for intake and swapping of products with the sucker-rod pump from the upper bed via the down the hole-space into the producing tubes column. The case is made enveloping only the electric motor and is connected with under the packer space through the tail piece. There is provided the possibility of lower bed products flow into the producing tubes column via this tail piece, the case and the channel with the back valve. According to the second variant, when mixing of bed products is not allowed, rods of the upper pump are made hollow. ! EFFECT: facilitating possibility of intake and swapping of products with sucker-rod pump from upper bed via tube space into rods of this pump. ! 2 cl, 2 dwg Подробнее

FIELD: oil and gas industry. ! SUBSTANCE: invention refers to oil and gas industry, particularly to well pumping assemblies for simultaneous operation of several objects. The invention allows operation of several objects with specified values of bottomhole pressure for each of them by means of one electroloading pump; the invention also simplifies the design. The essence of the invention is as follows: the assembly contains a producing tubes column, a cable, a tail piece, packers installed outside the tail piece between beds and dividing the well into sections, and an electroloading pump for withdrawal of beds production with an input module and electric engine; the assembly also contains a case. According to the invention the case envelopes only electric engine with the cable and ends at the input module of the electroloading pump whereon a unit of pressure tight cable output from the case is made. The electroloading pump has the efficiency exceeding the total output of beds. The tail piece has several channels; each of them is connected to one section of the well. At that the assembly is equipped with a regulator in form of a ground-based control unit, pressure gauges for measuring bottomhole pressure at the section connected to the related channel and electric valves in each channel functionally tied, the same way as pressure gauges, with the control unit. ! EFFECT: facilitates turning on and off of electoloading pump when bottomhole pressure reaches preset value at least in one of sections; simultaneously it connects or disconnects this section of sections with case reservoir through corresponding channel. ! 1 dwg Подробнее

FIELD: oil industry, particularly means for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets. ! SUBSTANCE: guiding device comprises transporting tool with movement direction change mechanism including shaft. Connecting-rod with stem is suspended to the shaft by means of sleeve nut. Connecting-rod rotator having splined projections and annular groove is threadedly fastened to the shaft. Support washer is arranged between shaft end and splined projections of the rotator. Spring-loaded members brought into permanent contact with control-rod stem are installed in annular groove of the rotator. Control-rod is connected with ram-valve assembly by means of intermediate sub. Bush with fixing means, which provides tool entrance in side bore is arranged in ram-valve assembly body. The bush is retained in ram-valve assembly body with shear pin and terminates with partition having orifices and with pug secured to the partition and provided with fixer. Fixing means include body and die connected to inclined body surface with shear pin and fixer. Ram-valve assembly body and bush have common orifice. ! EFFECT: increased efficiency. ! 2 dwg Подробнее

FIELD: oil and gas industry, particularly methods or devices for cementing, for plugging holes, crevices, or the like. ! SUBSTANCE: device comprises flow column and pipe string arranged inside it. Flow column has stem arranged at lower end thereof. Pipe string has radial channels formed in lower pipe string part and is sealed below the channels. Radial channels are air-tightly sealed with bush having side channels. Bush may perform limited upward movement to align side channels with radial pipe string channels. Disc valve with seat is installed between flow column and stem. Seat has rupturable member, which retains seat in opened state. Lower part of pipe string may hermetically seal disc valve seat and cooperate with rupturable member. Stem has hollow end part provided with plug installed inside end part so that the plug may perform limited upward movement as plug rests upon well bottom. The end part has radial channel, which may be hermetically closed as plug slides upwards. ! EFFECT: increased waterproofing efficiency. ! 2 dwg Подробнее

FIELD: oil and gas production industry, particularly methods or devices for cementing, for plugging holes, crevices, or the like. ! SUBSTANCE: device comprises production pipe string with pipe string arranged inside it. Production pipe string is provided with liner. Pipe string has cup located at end thereof. The cup has outer thrust. Radial channels are formed in low pipe string part. Disc valve with seat is installed between production pipe string and liner. Seat has rupturable member, which retains the disc valve in opened position. Cup may seal disc valve seat and cooperate with rupturable member. ! EFFECT: simplified technology of waterproofing composition preparation and increased waterproofing operation efficiency. ! 2 dwg Подробнее

FIELD: oil industry, possible use in system for maintaining bed pressure during inter-well transit of water for separating structurally condensed oil from extracted product of water well transferred from former oil extractive category due to water-flooding of productive bed. ! SUBSTANCE: device includes separating chamber and outlet aperture for water below separating chamber. As separating chamber device uses lower section of well limited by casing string and separating collar, which is mounted on tail, connected to immersed electric motor of electric centrifugal pump, suspended in well on tubing column. Tail in lower section below separating collar is provided with limiter, and in upper section above separating collar - with outlet aperture for water. As outlet aperture for oil, draining pipe is used with windows and branch pipes for connecting space below separating collar and space above the intake of electric centrifugal pump. On the tail below separating collar a cover is positioned with possible vertical movement along the tail in form of a barrel with guides for which it is possible to contact tail limiter and also walls of internal surface of casing string of well using spring-loaded dentils. ! EFFECT: separation of small oil volumes from large water volumes. ! 2 dwg Подробнее

FIELD: oil and gas industry, particularly to take samples from different well depths. ! SUBSTANCE: device comprises cylindrical body and rod with diaphragms which may slide with respect to the body. The body is composed of stacked cylinders sliding along the body in axial direction and having channels with valves. Upper body part is provided with low-pressure chamber having technological rod with annular recesses converging downwards and formed in outer surface thereof. Outer surface body has annular grooves. The rod is rigidly installed in the body in air-tight manner and is sealed from below. Diaphragms are made as annular pistons installed in lower part of each body cylinder. Cavity located under each cylinder may communicate with well interior through channels provided with valves. Cavity located over piston may communicate with low-pressure chamber through rod. Hydraulic chamber with end part enclosing the body is located over the body. The hydraulic chamber has partition arranged over the body and enclosing technological rod. Upper part of hydraulic chamber is hermetically connected with pipe string and is provided with piston pressed from below by means of spring and enclosing technological rod in air-tight manner. The piston is provided with annular groove converging in upward direction. The annular groove has retaining ring, which may cooperate with annular depressions of technological rod. End part of hydraulic chamber seals channels formed in body cylinders and is provided with recess created in inner side thereof and having spring ring. The ring may cooperate with annular grooves of the body. ! EFFECT: increased reliability and sample separation quality. ! 1 dwg Подробнее

FIELD: oil production industry, particularly well construction and repair. ! SUBSTANCE: device comprises upper and lower bodies. Lower body has orifices and packing member installed between stops. Check valve with seat and valve stem with orifice is arranged inside the bodies. Valve stem is joined to pipe string. Device also has fastening unit, fixers and anchoring unit. Check valve seat and stem are spaced apart and coaxially arranged in the bodies. Lower body orifices are closed with collar. Longitudinal slots are created in tubular body walls. Hollow cup provided with shear fingers is arranged in lower body surface so that the hollow cup is fixed with breakable member. The hollow cup is connected with upper rest. Packing member is made as elastic sleeve fixed with rest from below and reinforced with shell. The shell cooperates with upper and lower rests. Check valve seat is made as plug, which may hermetically cooperate with hollow cup in working position. Collar is located on check valve stem between the orifices and sub. Anchoring unit is made as bushing with springing centrators and technological grooves. Fastening unit is made as transfer bush. Fastening unit is fastened to upper body. ! EFFECT: simplified structure and increased load-bearing capacity. ! 2 dwg Подробнее