Universal protector

FIELD: electricity.

SUBSTANCE: universal protector comprises an elongated body with a longitudinal recess to accommodate the cable having protective shields configured to grip the tubing pipes in the area of their connection, two brackets hingedly connected respectively to the body parts located on each side of the protective shields and envelopping the pipes. Each bracket is provided with a spring element located with the possibility to preload the tubes to the body. The body parts have locking tabs, and in the brackets there are locking grooves made corresponding to the tabs. The middle body part has a double bend, on each side of which the holes are made for the special keys adapted to align with the body and to rotate until they are fixed in the body for fixing the cable.

EFFECT: versatility of the design and ensuring reliable retention of the electric cable that excludes its damage during the operation.

3 dwg

 



 

Same patents:

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to the oil and gas industry and may be used for the protection of the power cable for a pump from mechanical damage in the process of the tubing hanger trip with the installation of an electric centrifugal pump in vertical, directional and horizontal wells. A protectoliser is suggested that consists of a two-component case, a detachable tool joint with fastening elements and a protecting screen. The case consists of an articulated case and a bracket. The protectoliser case and bracket are interconnected by a swing bolt and an adjusting screw screwed into the case and connected to the bracket by an axle. The adjusting screw may be regulated axially due to screwing in/out into/from the case when the diameter of the pump neck changes. The protectoliser case in a cable duct is complete with a replaceable plate fixed at the case by two screws. The detachable tool joint is made as a hinged bolt and a hold-down nut with a spring lock to prevent uncontrolled turning off.

EFFECT: improving the reliability of the protectoliser fixation at the pump neck; improved universality of the protector.

3 cl, 6 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention relates to devices for centring of pipes in a well. The centralising system contains the first housing part (204); the second housing part (202); a group of bow-shaped springs connecting the first housing part to the second housing part and a window (208) located in the first housing part. The centralising system also contains the pipe lowered into a wellbore, and also the bulge (304) located in a window. The window width is such that it is greater than the width of the bulge and provides a possibility of the centraliser rotation around the pipe lowered into a wellbore with reference to the named bulge.

EFFECT: decrease of breakaway force, use of the centraliser in wells with small gap, and also simplification of the process of centraliser installation.

24 cl, 7 dwg, 1 tbl

Hole opener // 2550614

FIELD: mining.

SUBSTANCE: hole opener contains a centralizer, a housing with a central feedthrough channel and grooves, the blades fitted with rock cutting elements and ledges designed as a teeth, fixed in housing grooves with a possibility of extension and a mechanism of blade extension into the working position, a hollow shaft with the top thread for joining with the borehole equipment, a lateral hole and a lower bushing placed in the feedthrough channel of the housing with fixing due to twisting with reference to the housing, and the blades are fitted with the roots interacting with the hollow shaft bushing during extension of blades into the working position, and the device for fixing of blades in inoperative position containing radially spring-loaded circular segments. The roots are designed as radial pistons inserted into the housing with a possibility of limited radial movement under the action of internal excessive pressure due to the ring segments which are installed inside and blades installed which are installed outside. The roots are designed with a possibility of interaction with the hollow bushing of the shaft through ring segments, and the ring segments are designed as longitudinal plates.

EFFECT: reliability and durability of the hole opener.

4 dwg

FIELD: oil and gas industry.

SUBSTANCE: protectoliser consists of a two-component case and detachable tool joint with fastening elements and a protective collar. The two-component case consists of the articulated case with a bracket designed for setting both at cylindrical and hexagonal part of a pump neck. Besides, the protectoliser case and bracket are equipped with replaceable wearproof supports fixed in the bracket by locking rings thus allowing change in coupling size of the protectoliser for the pump neck. The protective collar is fixed to the case by its first end to the axis and by its second end to a flange bolt with a spring lock. The detachable tool joint is made as a hinged bolt and a nut with spring lock to prevent uncontrolled turning off.

EFFECT: improved reliability of the protectoliser fixation at the pump neck, increased service life of the protectoliser and improved universality of the protectoliser.

2 cl, 5 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to hole surveying and is intended for centring of instruments at their displacement along the borehole. The proposed device for centring of the downhole instruments comprises the main and extra systems of convex plate springs. Ends of the said main system of springs are articulated with extreme support sliders siding on a downhole instrument support guide. The number of springs of the extra system equals that of the main system. Note here that the ends of every spring of the said extra system can slide over the guide of the appropriate spring of the main system.

EFFECT: decreased sizes of downhole instruments, expanded applications.

2 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to machine building and can be used in production wells for alignment of pump sucker-rod pumps. Proposed unit comprises upper centraliser and coupling secured on one side to said upper centraliser. On coupling opposite side, lower centraliser, similar to upper one, is secured. Note here that ribs of flexed plates are fitted in upper and lower centraliser threaded fasteners, OD of said ribs being larger than ID of oil-well tubing. Lock nuts are fitted on the ends of said threaded fasteners. Application of plates in the design of proposed alignment unit allows locking of centralisers in oil-well tubing and concentric arrangement of pump sucker rods in oil-well tubing.

EFFECT: higher reliability of equipment, reliable locking of centraliser in oil-well tuning.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: vibration damper - calibrating device comprises a body and a gage plug. The body is perforated in longitudinal and circumferential directions with formation of grooves at exterior surface. The gage plug has joggles at inner surface, and at outer surface between joggles there are soldered hard-alloyed fins. The body and bushing are perforated through and shaped as prismatic grooves thus forming frames with installed steel balls. Diameter of the balls is increasing while distance to the next ball is reducing in longitudinal direction of the vibration damper - calibrating device bottom-up.

EFFECT: improved efficiency in dampening of longitudinal direction that impact the bottom assembly of the drill stem and in calibrating of the well bore.

3 cl, 2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to oil-and-gas production, particularly, to perforator retainers. Centraliser for this perforator comprises hollow case accommodating pusher interacting with spring-loaded piston arranged there under and fitted in barrel and retaining levers fitted on said piston to turn thereabout. Barrel top part has groove to accommodate thrust ring fitted therein to displace in lengthwise direction to interact with retaining levers by its top part and to rest on resilient ring by resilient ring. Piston top part has cut-outs for fitting retaining levers therein. Every cut-out represents two inner parallel surfaces with coaxial holes. Every hole has cut-out. One end of retaining lever has symmetric stiff cylindrical elements with flats arranged in diametral opposition. Piston hole cut-out chord length corresponds to spacing between said flats, piston hole diameter corresponds to diameter of cylindrical retaining lever element while opposite end of retaining lever end can interact with caring pipe.

EFFECT: higher efficiency.

3 cl, 6 dwg

Borehole calibrator // 2531982

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to support-centring devices used in configuration of well bottom at inclined drilling of oil and gas wells. Borehole calibrator comprises top and bottom connection threads, inner flushing fluid feed channel, blades with reinforced working surfaces separated by flushing grooves. Grooves inner channels have channels for additional injection of flushing fluid lifting from bottom at acute angle to axis by nozzle at channel end or without it. Said channels for additional injection can be arranged in two or more tiers, one above the other, in one or more flushing grooves. Additional one or more injection channels can extend from calibrator inner channel in annulus in direction of top edge in blade mirror plane at acute angle of 26-30 degrees towards calibrator cylindrical part generatrix.

EFFECT: decreased packing, higher flushing rate in annulus and mechanical drilling speed.

2 cl, 8 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to application of coatings in equipment used for operation of oil and gas wells. Proposed coatings of fullerene-based composite or diamond-like carbon or combination thereof feature hardness exceeding 1000 V.H.N. and friction factor smaller than or equal to 0.15 and are used as a protective coatings of oil and gas well equipment. The latter includes one or more cylindrical bodies apart from drill bit.

EFFECT: decreased wear, friction, corrosion, erosion and formation of sediments at devices operated in oil and gas wells.

36 cl, 26 dwg

FIELD: mining operations.

SUBSTANCE: invention relates to mining, namely to drill rod for rotary pneumatic drilling holes. The drill rod comprises a rod, a shank and an upset shoulder. The rod is made of a hexagon. The shoulder is mounted in two annular grooves to form a protrusion between them. The generants of the annular grooves mating with the surface of the rod make an obtuse angle. The rod comprises a central channel, the front end of the rod is formed with a conical surface. The minimum diameter of the rod (Ds), the width (a) and depth (h) of the annular groove, the height of the shoulder (B0) must satisfy the following relationship: h/a ≤ Ds/2·B0.

EFFECT: improved design.

6 cl, 9 dwg

FIELD: mining.

SUBSTANCE: device for rotary immersion of sections of the working tool into soil contains a rotator, a reducer and a holder. The lower part of the holder is fitted a grip and spring-loaded clamps, and in the top part of the holder cavity a pocket with a cylindrical cavity and a cross through groove is made. The spring-loaded clamps are fitted with fixing rods fitting to longitudinal grooves on a cap of the working tool section. The working tool section the is fitted with the rotation mechanism comprising two rotating heads located on external lateral surface of the section. The rotating heads are kinematically connected to each other and with the rotary fixing element.

EFFECT: reliable and safe lifting of the working tool from horizontal position into the working one, fast joining and disjoining of sections of the working tool eliminating axial movement of the section with reference to the boss.

3 cl, 9 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to servicing of tubing section fitted vertically at setback. For servicing of tubing section, remote-control manipulator is installed nearby one of threaded sections of tubing. Said manipulator is equipped with the tool for threaded section cleaning or lubing. Said tool id displaced to threaded section for cleaning or lubing.

EFFECT: accelerated dismantling of tubing.

11 cl, 5 dwg

Protectoliser // 2538409

FIELD: electricity.

SUBSTANCE: protectoliser has housing 1 and clamp 2 connected detachable with creation of the internal seating surfaces. Housing 1 and clamp 2 have end faces in disconnection plane, and side surfaces. Housing 1 of the protectoliser is equipped with securing assembly for the electric cable. The electric cable is secured by buckle 13 using the captive bolts 14. From the first end face 5 of the housing 1 the internal surfaces of the first shoulder 10 and internal surface 16 of the second shoulder 11 are made cylindrical. From the second end face of the housing 1 on the first shoulder 10 the internal surface is made cylindrical with recess for support on the hydraulic protection fasteners. On the second shoulder 11 the internal surface is made cylindrical with recess for support on the hydraulic protection fasteners. The internal surface of the housing 1 in central part is made cylindrical, and from both side surfaces the housing 1 is made partially as conic 22. The internal surface 23 of the clamp 2 is made in form of half of hexagon, and from one side surface 7 the clamp 2 is partially made as conic. From the opposite end face on the clamp 2 the lug boss 25 is made.

EFFECT: universalisation of protectoliser by creation of seating places interacting with the support surfaces of elements of the pump sections, input modules and gas separators from different manufacturers.

2 cl, 7 dwg

Protectoliser // 2538001

FIELD: electricity.

SUBSTANCE: protectoliser has housing 1 and clamp 2 connected detachable with creation of the internal seating surfaces. Housing 1 of the protectoliser is equipped with securing assembly for the electric cable. The securing assembly contains first shoulder 10 and second shoulder 11. From first side surface 5 of the housing 1 the internal surface 15 of the first shoulder 10 and internal surface 16 of the second shoulder 11 are made cylindrical. From the second side surface of the housing 1 on the first shoulder 10 and second shoulder 11 from the internal side the stops 17 and 18, respectively, are made. Stops 17 and 18 are in form of prism with triangular base. Stops 17 and 18 rest on the support platforms of the pump sections. From the second side surface of the housing 1 on the shoulder surfaces creating slot for the electric cable the guides 23 are made in form of steps enclosing the shoulder for the protecting washers on bases of the pump sections. The internal surface of the housing 1 in central part is made cylindrical, and from both side surfaces the housing 1 is made partially as conic 26. The internal surface of the clamp 2 is made in form of half of hexagon, and from one side surface 7 the clamp 2 is partially made as conic.

EFFECT: universalisation of protectoliser by creation of seating places interacting with the support surfaces of elements of the pump sections, input modules and gas separators from different manufacturers.

2 cl, 14 cl

FIELD: oil and gas industry.

SUBSTANCE: casing pipe (1) has external surface, which generatrix in cross-section is made as protrusions and depressions of triangular shape or as a wavy line.

EFFECT: prevention of casing strings crushing in case of permafrost rock refreezing in conditions of well shutdown or temporary abandonment.

2 dwg

FIELD: mining.

SUBSTANCE: drilling tool comprises a drill bit (2) connected to the drill rod (1) by a connector (3) of the drill bit. The drill rod is made of sections (11) of the drill rod. Each section of the drill rod comprises an inner section (111) of the rod and a hollow outer section (112) of the rod. The inner section of the rod is fixed with the ability of rotation in the outer rod section. The inner rod sections are joined together and form the inner rod (11') of the drill rod. The outer rod sections are connected together and form the outer rod (12') of the drill rod. The inner rod is connected to the output shaft of the power unit, and the outer rod is rigidly connected to the housing of the power unit.

EFFECT: reduction of friction force between the drill rod and the borehole wall.

14 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to machine building and can be used in production of long-sized sucker rods making the component of sucker rod string in oil extraction. Bar is subjected to machining and straightening-finishing. Thread is cut at bar ends while bulge is swaged ahead of said thread. Thrust ring is fitted at the bulge of bar every end and secured thereat. Thread heads are screwed on thread with interference fit. Internal and external thread is made on one thread head. Only internal thread is made on other head. Flats are made at side surfaces of thread heads. Used thrust ring has conical bore. Said thrust ring can be fitted in place at press in cold of hot state.

EFFECT: higher reliability, lower labour input.

6 cl, 4 dwg

FIELD: oil and gas industry.

SUBSTANCE: rope-type sucker rod transferring reciprocating motion and longitudinal force from the tophead to the actuator of the oil well pump consists of the rod body and head with connecting thread. At that a locked-coil rope with Z-, X- and O-wires is used as the rod body, while an attachment ensuring equal load to all rope wires is used as the rod head. Besides, the rope-type sucker rod is designed to transfer reciprocating motion from the tophead to the actuator of the oil well pump, at that attachments are equipped with a knot preventing rope turning in the attachment.

EFFECT: improvement of operational efficiency for rope-type sucker rods during operation of oil directional wells and oil wells with offshoots as well as during production of high-viscous oil.

5 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to couplers of pump rods for screw pump drive. Said coupler comprises captive nut with inner ledge on one side and internal thread on opposite side, rod body, captive nut and locating nut. Rod body has external thread, wedge-like slit and wedge-like ledge at opposite end. Note here that captive nut and guide captive sleeve are fitted on the rod of wedge-like ledge, locating nut being fitted on the body to contact with its inner ledge. Wedge-like ledge can be arranged in wedge-like slot of adjacent rod at its coupling with the guide captive sleeve.

EFFECT: higher torsion strength and breaking point.

5 cl, 2 dwg

FIELD: oil extractive industry.

SUBSTANCE: device has inner and outer pipes, placed coaxially with forming of ring-shaped space between them. Ring-shaped space is pressurized by vacuum seams, thermo-isolation is placed therein and vacuum is formed, on both sides of outer pipe thread is made, on one end thereof sleeve is screwed with isolating bushing. Vacuum seams are made at even spaces from ends of outer pipe, calculated from formula L=K·β, where L - distance between vacuum seam and end of outer pipe, mm; K - number of predicted maintenances of threads of thermo-isolated pipe; β - value of shortening of thermo-isolated pipe after single thread maintenance, mm. Also described is another variant of thermo-isolated pipe, wherein vacuum seams are made at different spaces from ends of outer pipe. Distance on side of sleeve is calculated from formula: LM=KM·β, where LM - distance between vacuum seam and end of sleeve end of outer pipe, mm, KM - number of predicted maintenances of thread of sleeve end of thermo-isolated pipe; β - value of shortening of thermo-isolated pipe after single thread maintenance, mm; and on nipple side space is calculated from formula: LH=KH·β, where LH - distance between vacuum seam and end of nipple end of outer pipe, mm; KH - amount of predicted maintenances of thread of nipple end of thermo-isolated pipe, while KM<KH.

EFFECT: higher efficiency.

2 cl, 1 dwg

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