Borehole generator

FIELD: electricity.

SUBSTANCE: generator includes protective housing, electric connector, at least one attachment assembly, rotor with hydraulic turbine, constant magnets and excitation windings. At that, rotor includes several discs with through radial slots in which constant magnets are installed. Poles of constant magnets are directed parallel to generator axis and alternate. Excitation windings are installed on both sides of each disc. Generator cavity is filled with lubricating fluid. On upper edge of rotor there is filling opening of lubricating fluid to the cavity of generator. Generator includes at least one pressure and temperature expansion compensator interconnected with generator cavity.

EFFECT: simplifying the design, improving reliability and power of generator at decrease of axial dimensions and weight of electric generator.

5 dwg

 

The invention relates to electric machines. Specifically the invention is intended for generator, installed in a hole and intended, for example, to power the downhole tool. Energy drilling fluid generator converts into electric power required to power the downhole navigation and geophysical instruments in the process of drilling and transmitter of electromagnetic communication channel. For the telemetry system at great depths requires an increase in the power transmitting device to 1 kW and more. To get more power, small size of the generator is very problematic

Known Autonomous turbine generator (an electric generator), is also designed to supply electrical power to the telemetry system that includes a turbine driven by the flow of drilling fluid, oil flooded the stator is filled epoxy compound, and the rotor of the alternator with permanent magnets located on the same shaft with the turbine. (Molchanov A.A., Shiraev AH "Downhole Autonomous system with magnetic registration". M.: Nedra, 1979, pp. 102-103.)

This generator consists of a stator, placed inside the unit and a six-pole magnetic ring rotor made from the outside. The rotor is also the case for blades require the speed of the turbine. Before each stage of rotor blades of the turbine, in turn, has three stage guide vanes collected in an external enclosure that increases the diameter of the device. To prevent the ingress of drilling fluid into the generator and bearing assemblies installed sealing device, the internal cavity of the generator is filled with transformer oil.

Due to the fact that the generator operates in the temperature range from -40 to +130°C, at depths of drilling up to 3500 m and more, and the volume of oil changes with changing temperature, put the pressure compensator and thermal expansion of lubricating fluid (oil). The compensator pressure and thermal expansion lubricating fluid made in the input fairing generator. It consists of two thin core plates, one of which is convex and the other concave. The compensator pressure and thermal expansion of lubricant is designed to compensate for changes in the volume of oil in oil-filled cavity of the generator in operating conditions when the temperature and pressure inside and outside of the generator.

The disadvantages of this generator are: low reliability, low resource, large size and weight of the device, the complexity of the design.

These disadvantages are caused in the firstpart of the fact, that the drive uses a multistage turbine with guide devices. The use of turbines with the alignment apparatus as actuator imposes high requirements to the quality of cleaning mud from fractions of drilling cuttings and other foreign objects, ingress of which the gap between the workers and the guide blades of the turbine may cause the system to stop (jamming). The presence of the guide vanes of the turbine increases the diametrical dimension of the generator, which is not desirable when drilling relatively small diameter.

The second design flaw is the complexity and unreliability of the pressure compensator and thermal expansion of lubricant. Due to the elasticity of the walls of the compensator pressure of lubricant is always less than the ambient pressure. This can lead to the ingress of drilling fluid into the lubrication system of the generator and to the wear of bearings, seals and other parts.

Known generator for RF patent No. 2331149, prototype. This generator contains a protective housing, at least one fastening Assembly, rotor with turbine and device for converting mechanical energy into electrical energy,

Disadvantages of electric - unreliability and complexity of the design, obukov is fair low reliability field windings, lack of capacity of the generator when it is limited diametral dimensions.

The task of creating the simplification of the structure, increasing capacity while reducing the axial size and weight of the generator.

The solution of the stated problem is achieved in the downhole generator containing the protective housing, the electrical connector, at least one attachment point, the rotor turbine, permanent magnets and excitation windings, the rotor comprises several disks through radial slots in which are mounted permanent magnets with poles of the permanent magnets is directed parallel to the axis of the generator and alternating excitation windings mounted on both sides of each disk, the cavity of the generator is filled with lubricating fluid, the upper end of the rotor made a hole for filling the lubricating fluid in the cavity of the generator, the generator includes at least one pressure compensator and of thermal expansion which is connected with the cavity of the generator.

The invention is illustrated in figures 1 to 5, where

figure 1 shows the generator,

figure 2 presents the device to compensate for the pressure and thermal expansion in the initial position,

figure 3 presents the drive with permanent magnets,

figure 4 presents the scheme of installation of the permanent magnets in the wheels,

the and figure 5 shows the design of the container has abmac excitement.

Downhole generator (Fig.1-5) installed in the string of drill pipe or casing (figure 1-5 not shown) and contains the protective housing 1 and at least one mounting device 2. In the mounting device 2 of the generator is made openings 3 for the passage of drilling mud. Downhole generator includes a rotor 4 with the turbine 5. The turbine 5 is obliquely-mounted flat blade set at an angle of 20...60°. The protective housing 1 is at the bottom of the electrical connector 6 is connected to the high-voltage wires 7 from the field windings 8.

The generator rotor 4 includes at least one disk 9 mounted in radial slots 10, the permanent magnets 11 (3 and 4). Winding 8 are installed in sealed containers 12 (Fig), made of magnetoresitive material. The internal cavity is filled with compound. The rotor 4 is mounted on bearings 13 and 14, the bearing 13 is protected by seals 15. To fill the lubricating fluid cavity 16 is provided in the axial hole 17 made in the rotor 4 and muffled by the screw 18.

To compensate for the flow of lubricating fluid, thermal expansion and alternating pressure in the well is provided at least one pressure compensator and thermal expansion 19 (Fig 1 and 2)made in the front protect the private housing 1 of the generator (figure 2). Most appropriate to perform 2...8 expansion joints pressure and temperature of the extensions 19 and placed radially inside the protective housing 1 from the side of the turbine 5 as compensation needs the cavity 16. Each compensator pressure and thermal expansion 19 contains the compensating piston 20 mounted and sealed relative to the protective housing 1. The cavity 21 under the expansion piston 20 hole (holes) 22 is connected to the cavity 16, and the cavity 23 on the compensating piston 20 are connected by a hole (holes) 24 with the environment to compensate for changes in pressure and temperature expansion of the lubricating fluid. The compensation piston 20 is spring-loaded by a spring 25 in the direction of the longitudinal axis of the generator.

Housing 1 with holes 26 for wiring 7 potted.

When the generator (1) drilling fluid passes through the turbine 5, which rotates with the rotor 4. The rotor 4 drives the disk 1 with the permanent magnets 11. The magnetic flux crosses the winding 18 and in them there is the electric current through the wires 7 is supplied to the electrical connector 6.

When the volume of lubricating fluid in the cavity 16 (Fig 1) for any reason is the corresponding movement of the compensation piston 20. AFL is stvie inside this cavity 16 is always maintained at a pressure of 2...5 ATM more than the ambient pressure. This prevents the penetration of abrasive particles contained in the drilling fluid inside the cavity 16. If you have applied several expansion joints pressure and thermal expansion 19, when the clogging of one of the holes 22 (or more holes 22, if applicable 4...8 expansion joints pressure and thermal expansion 19) other expansion joints pressure and thermal expansion 19 will perform its function even when one of them. This significantly increases the reliability of the generator and its resource.

The application of the invention allowed:

1. To increase the capacity of the generator through the use of field windings on both sides of the permanent magnets.

2. To simplify the design of the generator through the use of standardized parts, simple design (disks).

3. To significantly increase service life of bearings by reducing the rotor diameter to the minimum.

4. To reduce the imbalance of the rotor of the generator due to the unification and simplicity of construction the main parts of the rotor discs. The rotor is fixed, only the turbine and drives.

5. To improve the maintainability of the generator due to its simplicity.

6. To ensure reliable compensation for changes in pressure and ambient temperature and lubricating fluid.

Downhole generators is Thor, containing protective housing, the electrical connector, at least one attachment point, the rotor turbine, permanent magnets and excitation windings, wherein the rotor comprises several disks through radial slots in which are mounted permanent magnets with poles of the permanent magnets is directed parallel to the axis of the generator and alternating excitation windings mounted on both sides of each disk, the cavity of the generator is filled with lubricating fluid, the upper end of the rotor made a hole for filling the lubricating fluid in the cavity of the generator, the generator contains at least one compensator pressure and thermal expansion, reported with the cavity of the generator.



 

Same patents:

Borehole generator // 2426874

FIELD: electricity.

SUBSTANCE: borehole generator is equipped with protective housing, electric connector, at least one attachment fitting, rotor with hydraulic turbine, constant magnets, rotor of generator and excitation windings which are fixed inside protective housing. Magnetic coupling containing drive and driven half-couplings and magnetic permeable partition between them is installed between rotors. Discs having radial slots in which constant magnets are installed are fixed on generator rotor. Excitation windings are installed on both sides of discs. Tight magnetic permeable partition containing parts from magnetic permeable material is arranged between driven and drive half-couplings. At that, drive half-coupling is connected to rotor, and driven coupling is connected to generator rotor. Inner cavity of drive half-coupling is filled with lubricating fluid. On upper edge of rotor there is filling opening of lubricating fluid to the cavity of drive half-coupling. Generator includes at least one pressure and temperature expansion compensator interconnected with cavity of drive half-coupling.

EFFECT: simplifying the design, improving reliability and power of generator at decrease of diametrical dimensions and weight of electric generator.

3 dwg

FIELD: electricity.

SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of non-contact electric machines with electromagnetic reduction with combined excitation of inductor and can be used in automation systems as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, direct drives in domestic equipment, electric drives of high and average power of ships, trolleybuses, trams of the underground, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous generators of frequency converters and as controlled stepped motors. Non-contact reduction machine with salient-pole armature includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two, non-magnetic shaft, stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth, stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; odd and even rotor packs the number of which is equal to number stator packs are pressed on the appropriate odd and even magnetic conductors of rotor, which are put on non-magnetic bushing installed on non-magnetic shaft, rotor packs contain teeth uniformly distributed along cylindrical surface, even packs of rotor are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack; between rotor magnetic conductors there located are ring-shaped layers of constant magnets axially magnetised in one direction, number of ring-shaped layers of constant magnets is one less than number of rotor packs; on salient poles of stator packs there is coil m-phase armature winding each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack; excitation winding of inductor is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine; number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, for serviceability of machine there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions of non-contact electric reduction machines with salient-pole armatures with combined excitation and application of electromagnetic reduction in wide ranges at providing high energy parametres and operating characteristics with possibility of smooth and deep control by means of output parametres.

9 cl, 5 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of non-contact magnetic electric machines with electromagnetic reduction and can be used in automation systems, in domestic equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, lifting mechanisms, electric drives of concrete mixers, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of the shaft rotation, as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous frequency converters, and as controlled stepped motors. Non-contact magnetic electric reduction machine with salient-pole armature includes stator the armature core of which consists of insulated electrotechnical steel plates with high magnetic permeability, and has salient poles on inner surface of which there are elementary teeth, coil m-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, and ferromagnetic rotor without winding, which contains inductor with odd and even toothed cores with equal number of teeth on each core, odd and even toothed cores of inductor are made in the form of packs consisting of insulated electrotechnical steel plates with high magnetic permeability, number of inductor cores is not less than two, even inductor cores are offset relative to odd ones in tangential direction through the half of its toothed division; between magnetic conductors of inductor there located are ring-shaped layers of segmental constant magnets axially magnetised in one direction. At that, for serviceability of non-contact magnetic electric reduction machine with salient-pole armature there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each inductor core and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions of non-contact magnetic electric reduction machines with salient-pole armatures with deep electromagnetic reduction and enlarged capabilities of their application at maintaining high energy parametres and operating characteristics.

5 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention can be used in automation systems as traction controlled and non-controlled electric drives, as wind generators, hydraulic generators, high-frequency electric generators, multi-phase synchronous electric motors and electric generators of frequency converters, as well as multi-phase power sources of electric current. The proposed non-contact modular synchronous magnetoelectric machine consists of modules - "elementary machines", and includes stator the armature core of which is charged and has salient poles with coil m-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, one per a pole, as well as rotor which contains inductor with salient poles with alternating polarity, which are symmetrically distributed along cylindrical surface and excited with constant magnets. At that, there are certain ratios between the number of salient armature poles, number of phases of m-phase armature winding, number of salient poles in armature module phase, number of modules and number of salient poles of inductor.

EFFECT: high energy data, high specific torque moment on the shaft in electric motor mode and high specific power in electric generator mode of non-contact modular synchronous magnetoelectric machine owing to better use of useful capacity of the machine.

7 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention can be used in automation systems as traction controlled and non-controlled electric drives, as wind generators, hydraulic generators, high-frequency electric generators, multi-phase synchronous electric motors and electric generators of frequency converters, as well as multi-phase power sources of electric current. The proposed non-contact modular magnetoelectric machine consists of modules of "elementary machines" and includes stator the armature core of which consists of isolated electrotechnical steel sheets with high magnetic permeability and has salient poles with coil w-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, one per a pole, as well as rotor which contains inductor with salient poles with alternating polarity, which are symmetrically distributed along cylindrical surface and excited with constant magnets. At that, there are certain ratios between the number of salient armature poles, number of phases of m-phase armature winding, number of salient poles in armature module phase, number of modules and number of salient poles of inductor.

EFFECT: high energy data, high specific torque moment on the shaft in electric motor mode and high specific power in electric generator mode of non-contact magnetoelectric machine owing to better use of the useful capacity of the machine.

7 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention can be used in automation systems as traction controlled and non-controlled electric drives, as wind generators, hydraulic generators, high-frequency electric generators, multi-phase synchronous electric motors and electric generators of frequency converters, as well as multi-phase power sources of electric current. The proposed non-contact magnetoelectric machine with modulated magnetomotive force of armature includes stator the armature core of which consists of isolated electrotechnical steel sheets with high magnetic permeability and has salient poles with coil w-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, one per a pole, as well as rotor which contains inductor with salient poles with alternating polarity, which are symmetrically distributed along cylindrical surface and excited with constant magnets. At that, there are certain ratios between the number of salient armature poles, number of phases of w-phase armature winding, number of salient poles of armature in phase and number of salient poles of inductor.

EFFECT: high energy data, high specific torque moment on the shaft in electric motor mode and high specific power in electric generator mode at reduction of torque moment pulsations, vibration and noise of non-contact magnetoelectric machine owing to its multi-phase design with modulated magnetomotive force of armature.

14 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention refers to peculiar features of the design of non-contact synchronous magnetic-electric machines and can be used in automation systems as traction controlled and non-controlled electric drives, as wind generators, hydraulic generators, high-frequency electric generators, multi-phase synchronous electric motors and electric generators of frequency converters, as well as multi-phase power sources of electric current. The proposed non-contact synchronous magnetoelectric machine with modulated magnetomotive force of armature includes stator the armature core of which consists of insulated electrotechnical steel sheets with high magnetic permeability and has express poles with coil m-phase armature winding, each coil of which is arranged on the appropriate express pole of armature, one per a pole, as well as rotor which contains inductor with express poles with alternating polarity, which are symmetrically distributed along cylindrical surface and excited with constant magnets. At that, certain ratios are fulfilled between the number of express armature poles, number of phases of m-phase armature winding, number of express poles of armature in phase and number of express poles of inductor.

EFFECT: high energy properties, high specific torque moment on the shaft, reducing pulsations of torque moment, vibration and noise of non-contact synchronous magnetoelectric machine owing to its multi-phase design with modulated magnetomotive armature force.

13 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: there proposed is rotor (16) manufacturing system and method, as well as magnetisation method of cylindrical element of electric machine (10), in compliance with which multiple segments (28) of constant magnet are fixed around rotor spindle (24). Desired orientation directions (29) of constant magnet segments (28) are determined. Then, mounted constant magnet segments (28) are placed into magnetisation equipment (44) so that desired orientation directions (29) of constant magnet segments (28) are combined with the appropriate flow directions (74) of magnetisation equipment (44). At that, desired orientation directions of constant magnet segments have such configuration that directions of the next orientation are changed from the direction which is essentially normal to the direction of rotor rotation about D-axis of rotor pole, to the direction which is essentially tangent to rotor rotation direction about Q-axis of rotor pole; desired orientation directions of constant magnet segments are determined by means of magnetic analysis by using finite element method according to the main characteristic of which the desired orientation directions of constant magnet segments are such that almost coincide as to the direction with magnetic flow formed with the magnetisation equipment.

EFFECT: simplifying the design, improving the efficiency and shortening the magnetisation process of constant magnet segments in rotors of electric machines.

13 cl, 6 dwg

Ac electric machine // 2411623

FIELD: electricity.

SUBSTANCE: in AC electric machine, comprising rotor and stator with winding arranged in it and made of K coils, it is suggested to install coils in stator winding so that central angle α1 between axes of cross sections of sides of each coil, determining width of coil, equals α1=(360°+60°·m)/2K; number of coils K is determined by ratio K=(1+m/6)·p, where m - number of phases, p - number of pole pairs of magnetic field, at the same time p is multiple of three for m = 2 and is multiple of two for m = 3.

EFFECT: increased torque and reduction of its pulsations, reduced losses of power in electric machine by development of magnetic flow by stator, acting at all poles of rotor with forces of one direction and having one fixed number of poles, equal to number of rotor poles.

3 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric engineering and designs of contactless reducer electromagnetic machines with electromagnet reduction, intended for use as motor - wheels, motor - drums, direct drives in electrical appliances (electric meat grinders, washing machines, etc), electric drives of concrete mixers, weight-lifting mechanisms, belt conveyors, pumps for pumping of fluids, mechanisms with high torque on shaft and low frequencies of shaft rotation, and also as high-frequency electric generators. Proposed contactless reducer electromagnet machine comprises stator with explicit poles, on inner surface of which there are elementary cogs, m-phased focused anchor winding of which consists of coils, each coil covering an appropriate anchor pole, and winding-free ferromagnetic rotor, comprising two inductor cores displaced relative to each other in tangential direction by half of gear division, with toroid permanent magnet magnetised in axial direction and installed between cores of inductor, to develop magnetic flow of excitation. At the same time certain ratios are maintained between number of anchor poles, number of elementary teeth on anchor pole, number of anchor poles in phase, common number of anchor teeth, number of teeth on each inductor core and number of phases of anchor winding of contactless reducer electromagnetic machine.

EFFECT: high power and operational indices, high specific rotary torque on shaft and high electromagnetic reduction of rotation frequency in mode of electric motor, high specific capacity at high frequencies of electromotive force in mode of electric generator.

12 cl, 14 dwg, 1 tbl

Borehole generator // 2426874

FIELD: electricity.

SUBSTANCE: borehole generator is equipped with protective housing, electric connector, at least one attachment fitting, rotor with hydraulic turbine, constant magnets, rotor of generator and excitation windings which are fixed inside protective housing. Magnetic coupling containing drive and driven half-couplings and magnetic permeable partition between them is installed between rotors. Discs having radial slots in which constant magnets are installed are fixed on generator rotor. Excitation windings are installed on both sides of discs. Tight magnetic permeable partition containing parts from magnetic permeable material is arranged between driven and drive half-couplings. At that, drive half-coupling is connected to rotor, and driven coupling is connected to generator rotor. Inner cavity of drive half-coupling is filled with lubricating fluid. On upper edge of rotor there is filling opening of lubricating fluid to the cavity of drive half-coupling. Generator includes at least one pressure and temperature expansion compensator interconnected with cavity of drive half-coupling.

EFFECT: simplifying the design, improving reliability and power of generator at decrease of diametrical dimensions and weight of electric generator.

3 dwg

FIELD: electricity.

SUBSTANCE: high-voltage borehole generator is equipped with protective housing, electric connector, at least one attachment assembly, rotor with hydraulic turbine and conversion device of mechanical energy to electric energy. Conversion device of mechanical energy to electric energy is made in the form of mechanical generator and Tesla transformer, which are connected by means of electric conductors. At that, Tesla transformer is made in the form of primary and secondary windings and installed in tight cavity and isolated from protective housing. Magnetic coupling containing drive and driven half-couplings is installed between rotor and conversion device of mechanical energy to electric energy. Tight partition containing parts from magnetic permeable material is arranged between driven and drive half-couplings. At that, drive half-coupling is connected to rotor, and driven coupling is connected to shaft. Inner cavity of drive half-coupling is filled with lubricating fluid. On upper edge of rotor there is filling opening of lubricating fluid to the cavity of drive half-coupling. Generator includes at least one pressure and temperature expansion compensator interconnected with cavity of drive half-coupling.

EFFECT: simplifying the design, improving reliability and power of generator at decrease of diametrical dimensions and weight of electric generator.

5 dwg

FIELD: oil and gas industry.

SUBSTANCE: pressure transducer is made in the form of hollow mechanical resonator-pitchfork. Ends of pitchfork branches are bent in the form of elastic tubular springs (Bourdon tubes). Cavities of tubular springs are interconnected with the cavity made in branches of pitchfork and connected through membrane to annular space of well.

EFFECT: higher measuring accuracy of bottom hole pressure of drilling fluid.

2 dwg

Bore-hole generator // 2425973

FIELD: oil and gas industry.

SUBSTANCE: bore-hole generator is equipped with protective housing, electrical connection, at least one attachment fitting, rotor with hydraulic turbine, constant magnets, rotor of generator and excitation windings fixed inside protective housing. At that, magnets and excitation windings are made in circumferential direction and installed in cylindrical housings with central hole with alternation and axial gaps between them. Discs having radial slots in which magnetic permeable inserts are installed are fixed on generator rotor. At that, discs are installed between excitation windings and constant magnets.

EFFECT: simpler design, improved reliability and increased power of generator at decreased diametrical dimensions and weight of electric generator.

8 cl, 7 dwg

FIELD: oil and gas industry.

SUBSTANCE: electric separator includes composite metal housing with connection threads on both ends, section of outer coating from dielectric material, channel for passage of drilling solution, in which dielectric sleeve is installed. Housing consists of upper and lower adapters, as well as intermediate insert (II) located between them, connected to each other with threaded connections in which separate metal parts are insulated from each other with dielectric layer. At that, II has pin threads. Inside it there concentrically installed is dielectric sleeve the projecting ends of which are flared and pressed to II edges with fixing sleeves (FS). Projecting parts of FS enter inner grooves made in upper and lower adapter and are sealed. And outer coating fully covers II insert and partially overlaps upper and lower adapters. On upper and lower adapters on II side there are outer grooves throughout the overlapping length of outer coating. On cylindrical surface formed with outer grooves there made are slots preventing the turnaway of threads connecting separate parts of electric separator (ES). Slots on upper and lower adapters are opened towards the edge. Grooves for sealing rings are made inside II on both sides. On FS edges and in inner groove of lower and upper adapter there made are annular projections between which additional sealing rings are installed. Thin-wall part of FS is flared inside dielectric sleeve. Radius of vees of thread connecting II to upper and lower adapters is equal to sum of values of projection radius and thickness of dielectric coating.

EFFECT: higher reliability of electric separator of borehole instrument of telemetering system owing to preventing the penetration of drilling fluid between electrically insulated parts included in its composition.

4 cl, 7 dwg

FIELD: oil and gas industry.

SUBSTANCE: borehole instrumentation complex includes telemetering module and at least one binding module, which are in series connected to each other. Each of modules includes power unit connected to information processing unit, memory unit and signal level matching unit. Information processing unit is connected to memory unit and to signal level matching unit. At that at least one of modules includes borehole parameter sensor unit connected to information processing unit. Telemetering module also includes information signal extraction and shaping units, each of which is connected to power unit and to information processing unit. Power unit and information extraction and formation unit are connected by means of geophysical cable to ground equipment including power and information signal source. Signal level matching units of telemetering module and binding module connected to it are connected to each other by means of power line and/or connection.

EFFECT: enlarging functional capabilities of instrumentation complex, reducing the number of invalid data owing to automation of configuration process of modules in the complex.

7 cl, 9 dwg

FIELD: oil and gas industry.

SUBSTANCE: borehole instrumentation complex includes telemetering module and at least one binding module, which are in series connected to each other. Each of modules includes power unit connected to information processing unit, memory unit and signal level matching unit. Information processing unit is connected to memory unit and to signal level matching unit. At that at least one of modules includes borehole parameter sensor unit connected to information processing unit. Telemetering module also includes information signal extraction and shaping units, each of which is connected to power unit and to information processing unit. Power unit and information extraction and formation unit are connected by means of geophysical cable to ground equipment including power and information signal source. Signal level matching units of telemetering module and binding module connected to it are connected to each other by means of power line and/or connection.

EFFECT: enlarging functional capabilities of instrumentation complex, reducing the number of invalid data owing to automation of configuration process of modules in the complex.

7 cl, 9 dwg

FIELD: physics.

SUBSTANCE: in the body of the monolithic block of a device for calibrating downhole equipment, there are through channels which lie parallel and concentric to the vertical axis of the device. All or some of said channels are filled with hydrogen-containing material in form of caprolon rods of the same or different cross-section. At the bottom, the channels may be fitted with valves and all or some are filled with water.

EFFECT: high accuracy of calibrating equipment used on gas fields and underground gas storages.

3 cl, 1 dwg

FIELD: oil and gas production.

SUBSTANCE: communication line for bottomhole telemetric systems for control of parameters of drilling consists of cable sections built-in into drilling pipes each including section of cable, contact coupling and rod arranged on different ends of cable and equipped with points of attachment to drill pipes consisting of cases and wedging elements. Also, the cases of the attachment points in their middle part have cross section fit into oval. On external surface in the middle part of the cases along perimetre of section there are made grooves in form of two-edge right angles extended along lengthwise axis of the cases and arranged symmetrically relative to both axes of cross section. The wedging elements are made in form of four identical rectangular plates with their one side installed in the grooves, while with their opposite side resting against internal surface of a drill pipe in its diametrical planes.

EFFECT: raised operational reliability of communication line and versatility of its implementation with pipes of different diameter.

2 cl, 5 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to an underground gas storage and is designed to determine impact of various natural-anthropogenic geodynamic processes at safety of an underground gas storage (UGS). The method includes development of a geodynamic polygon and execution of a comprehensive geodynamic monitoring (CGDM) on it, building a map following the CGDM results and forecasting emergency geodynamic events. The comprehensive geodynamic monitoring is executed both at regional and local stages in monitoring units - aerospace, deformation, geophysical, hydrogeological and fluid-dynamic ones, with application of various space and time detail of measurements. At the regional stage, site research is carried out within the geodynamic polygon in monitoring units - aerospace, deformation, geophysical ones. At the local stage of CGDM, well studies are carried out in monitoring units - hydrogeological, fluid-dynamic and geophysical ones. A refined geodynamic model is created. Classification of criterial indices is developed for each monitoring unit to assess a geodynamic risk, to assign a five-point grading at the regional stage, a three-point grading at the local stage, according to the level of the geodynamic danger. Indices calculated for each monitoring unit are compared with criterial indices, intensity of hazardous geodynamic and anthropogenic-induced processes expression is assessed in all monitoring units, then a single total coefficient of UGS geodynamic condition is calculated using the formula. It is compared with a previously calculated criterial coefficient for each level of geodynamic hazard, a level of geodynamic hazard of UGS is defined, and a final map of area ranging according to extent of geodynamic risk is built.

EFFECT: improved reliability and safety of UGS operation.

3 dwg, 4 tbl

FIELD: mining industry.

SUBSTANCE: invention can be used in case of gas-lift operation of wells equipped by free piston-type installations. Invention envisages stopping well, connecting tube space and annular space in wellhead, recording bottom zone and wellhead pressures in tube and annular spaces, and computing well operation parameters using inflow curve plotted according to differences of bottom zone and wellhead pressures. Volume of produced fluid is found from potential output of formation and from condition of output of free piston. When comparing these volumes, parameters of well are computed in the base of minimum volume value.

EFFECT: optimized well operation.

2 dwg

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