Protector for protection of force cable in a well
 Protector for protection of power cable in a well / 2249668Device has body, made in form of bracket with inner dimensions for power cable and mounted on sleeve of tubing pipe through mounting rind. On ribs of body open grooves are made with side surfaces for interaction to lower end of sleeve. On the opposite side in open grooves holders are mounted for connection of protector body to mounting ring, passing through apertures of mounting ring for interaction with upper end of sleeve. Central channel in mounting ring is made with eccentricity and with size for outer diameter of tubing pipe for holding body of protector on sleeve. |
 Device for protection of power cable in a well / 2249667Device has body and groove for placement of power cable. Body is made closed, of elastic material with thickening and inner conical channel for interaction with conical thread of tubing pipe. Groove is placed on outer surface of body in parallel to its axis at its thickening and has T-like shape, which matches cross-section of power cable, for placement during mounting and holding by T-shaped groove of said power cable during its screwing together in well of next tubing pipe with sleeve. |
 Detachable protector for drilling pipe / 2244799Body of device is made in form of bushing of elastic material. Device additionally has transverse bars spaced along circle in amount no less than three, mounted in such a way relatively to bushing, that outward displacement thereof causes increase of inner passing diametric protector size, and having clamps providing for possible connection of external detachers to it, forming said displacement. Bushing and bars are provided with mutual fixing elements, preventing possibility of their relative displacement after assembling. Clamps are placed on bars within range of portions of their mutual axial overlapping with bushing, and in the latter channels are made, providing for possible connection of detachers thereto. Clamps are made on portions of bars, extending beyond bushing limits, bars are fixed in longitudinal grooves made on inner surface of bushing. Each bar has at least one boss, which is deepened into radial aperture of bushing, connecting to outer surface thereof. Clamp is made in form of threaded aperture in the boss. Bars ends extend beyond bushing ends and have shape providing for possible mounting thereof during mounting of device on drilling pipe in appropriate longitudinal grooves of hollow, made on the latter. Bars are pressed into body with possible connection of clamps to detachers. |
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Detachable protector for drilling pipe / 2244799 Body of device is made in form of bushing of elastic material. Device additionally has transverse bars spaced along circle in amount no less than three, mounted in such a way relatively to bushing, that outward displacement thereof causes increase of inner passing diametric protector size, and having clamps providing for possible connection of external detachers to it, forming said displacement. Bushing and bars are provided with mutual fixing elements, preventing possibility of their relative displacement after assembling. Clamps are placed on bars within range of portions of their mutual axial overlapping with bushing, and in the latter channels are made, providing for possible connection of detachers thereto. Clamps are made on portions of bars, extending beyond bushing limits, bars are fixed in longitudinal grooves made on inner surface of bushing. Each bar has at least one boss, which is deepened into radial aperture of bushing, connecting to outer surface thereof. Clamp is made in form of threaded aperture in the boss. Bars ends extend beyond bushing ends and have shape providing for possible mounting thereof during mounting of device on drilling pipe in appropriate longitudinal grooves of hollow, made on the latter. Bars are pressed into body with possible connection of clamps to detachers. |
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Device for protection of power cable in a well / 2249667 Device has body and groove for placement of power cable. Body is made closed, of elastic material with thickening and inner conical channel for interaction with conical thread of tubing pipe. Groove is placed on outer surface of body in parallel to its axis at its thickening and has T-like shape, which matches cross-section of power cable, for placement during mounting and holding by T-shaped groove of said power cable during its screwing together in well of next tubing pipe with sleeve. |
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Protector for protection of power cable in a well / 2249668 Device has body, made in form of bracket with inner dimensions for power cable and mounted on sleeve of tubing pipe through mounting rind. On ribs of body open grooves are made with side surfaces for interaction to lower end of sleeve. On the opposite side in open grooves holders are mounted for connection of protector body to mounting ring, passing through apertures of mounting ring for interaction with upper end of sleeve. Central channel in mounting ring is made with eccentricity and with size for outer diameter of tubing pipe for holding body of protector on sleeve. |
 Protector for protection of force cable in a well / 2250345Device has body, groove for placing force cable and deflectors for interaction with operation columns inner channels. Body is made closed in form of eye, with thickened portion and channel for enveloping tubing pipe. In thickened portion a socket is made and groove is placed, made open for inserting at angle α to axis of force cable groove and its connection during screwing together of pipe and sleeve at well mouth. Width of open groove is less than force cable width. Surfaces of socket, enveloping force cable, are made with possible pressing of cable to surface of tubing pipe. |
 Protector for well power cable / 2250977Protector has body of sections, made with possible mutual connection at a well. Body is made with possible mounting at an end of tubing pipes column sleeve. Sections have inner channels for interaction with tubing string, groove for driving power cable and are made with extension at outer surface. Lower section at an end is made with circular recess, and upper - with matching circular groove. Groove for driving power cable is made open in extension at an angle to body axis. In side walls of open groove, in parallel to body axis, inner grooves are made for holding power cable. |
 Well drilling rig / 2254433Drilling rig includes drilling string located above reamer, borer with body and flushing channel. Centralizer is installed at a distance exceeding half-wave length drilling string flexure during drilling process. Centralizer is made as hinged spring-loaded blades with centering diameter corresponding to well diameter in transport position and to expanded borehole part diameter in working position. Reamer has eccentrically located rock cutting blades. Borer body is made as limiting step and is provided with stabilizing members secured to the body from side of rock-cutting blades. |
 Spherical centering turbulence promoter / 2255198Device has body in form of cylindrical bushing. Outside the body three blades are mounted symmetrically, with 120° spacing, relatively to central axis and being supports for device, providing for centering of drilling column. Blade is made of variable width with increase towards end portion, wherein rolling body in form of rubber ball is pressed. |
 Universal mechanical centralizing device / 2256768Centralizing device comprises body, spring-loaded centering members arranged in grooves and spaced equal distances one from another. The centering members form calibrating diameter of the device. Centering members are arranged in even or odd manner, concentrically or eccentrically one to another and installed in mating grooves directed at 4°-9° to body axis. The mating grooves converge towards device bottom. Stop nut for calibrating diameter regulation is located on outer body surface in top part thereof. Stop nut is joined with the body by left-handed connection thread and has longitudinal orifices extending along stop nut axis. U-shaped shear clips destined to prevent bottomhole assembly sticking are inserted in stop nut orifices. |
 Drill string rod centralizer / 2260107Centralizer has rod, pivotally connected casing halves with supports and retainer adapted to fix casing halves. Casing halves are provided with flat projections. Outer faces of the projections have additional rectangular extensions. Centralizer is provided with two additional casing halves with supports, slots and grooves having characteristics corresponding to that of pivotally connected case halve projections and located transversely to jointing plane. Circumferences and diameters of the supports of pivotally connected and additional casing halves are mutually aligned. Retainers are arranged in supports of additional casing halves, retainer ends are located in pivotally connected casing halves. |
 Centralizer for casing pipe / 2260667Centralizer comprises locating member, support members and axes with friction reducing rollers arranged on the axes. Locating member is made as two locating rings. Support members are formed as resilient bars with ends connected to location rings. Resilient bars define boxes in cross-sections of medium parts thereof. Bottoms of the boxes have at least two slots to expose rollers. Roller axes are installed in orifices formed in box sides. Gap is formed between sides of resilient bar boxes and pipe to which centralizer is connected when centralizer is in unloading state. |
FIELD: mining industry.
SUBSTANCE: device has body, groove for placing force cable and deflectors for interaction with operation columns inner channels. Body is made closed in form of eye, with thickened portion and channel for enveloping tubing pipe. In thickened portion a socket is made and groove is placed, made open for inserting at angle α to axis of force cable groove and its connection during screwing together of pipe and sleeve at well mouth. Width of open groove is less than force cable width. Surfaces of socket, enveloping force cable, are made with possible pressing of cable to surface of tubing pipe.
EFFECT: higher reliability, higher manufacturability, lower costs.
2 cl, 3 dwg
The invention relates to the field of mining, in particular to the oil and gas industry, and can be used to protect the power cable from mechanical damage during descent-ascent suspension tubing with the installation of electrical submersible pump in the well.
Known protectors to protect the power cable in the borehole containing the plug housings, fasteners and holes Rethimno key (2, 3).
The disadvantages of the known protectors are the design complexity, difficulty in manufacturing, inconvenience during installation and dismantling at the wellhead.
Known protector to protect the power cable in the well, comprising a housing and a groove to accommodate the power cable (1).
The disadvantages of the tread are the design complexity, low-tech, difficulty in manufacturing, inconvenience during installation and dismantling at the wellhead, unreliable in operation.
The objective of the invention is to reduce the element base design protector to protect the power cable in the borehole, to improve the processability during manufacture, the ease of use during installation and dismantling at the wellhead, to increase reliability and competitiveness.
The technical result is achieved by the fact that the protector to protect the silo is on cable in the borehole, comprising a housing and a groove to accommodate the power cable, characterized in that it has reflectors for communication with the internal TV production casing, and the casing closed, in the form of earrings, with a thicker part and a channel for gripping the tubing, with thickened parts are made of the nest and there is a slot made open to input angle α to the axis of the groove of the power cable and lock when threading pipe with coupling at the wellhead, with the width of the open groove is less than the width of the power cable and the surface of the nest, exciting power cable, made with the possibility of compressing the cable to the surface of the tubing.
For fastening the protector to the suspension tubing and simultaneous sealing of threaded connections screwing the coupling and the pipe on the edge of the tread coaxially with the axis of the channel is performed turning to interact with the inner diameter of the bore in the sleeve and with an outer diameter of sbeg tapered threads of the tubing.
Figure 1 shows the installation of a protector to protect the power cable over the mouth of the well in the context.
Figure 2 shows recorded protector on suspension after screwing the tubing and couplings at the wellhead.
Figure 3 cross section a-a, tread, and manual is to protect the power cable with suspension tubing in the well.
Protector to protect the power cable contains:
- closed housing 1 protector, made in the form of earrings (Fig.1)
channel 2 for girth, tubing,
- thickness portion 3 of the tread,
- open groove 4,
- power cable 5,
angle α (angle input power cable into the socket, or the turn angle of the tread relative to the power cable over the mouth of the well) 6,
the reflectors 7,
slot 8,
- the clutch 9, (2),
- pump-compressor pipe 10,
surface 11 of the socket 8 of the tread to compress power cable 5 to the pump-compressor pipe 10 and the sleeve 9,
- turning 12,
- the inner diameter of the bore 13 in the sleeve 9,
- outer diameter of sbeg tapered threads 14 of the tubing 10,
- production casing 15 (Fig 3),
- the inner channel 16 of the casing 15,
In a static position the elements of a protector to protect the power cable in the borehole interact as follows.
Over the mouth of the well at an angle 6 (α) in the slot 8 through the open groove 4, is made in a thickened portion 3 of the closed casing of the protector 1, is injected power cable 5 (Fig 1).
The protector 1, moving through power cable 5 through the slot 8 is set by turning 12 in the inner diameter of the bore 13, is made in the sleeve 9 according to GOST 633-80 (pipe pump-compressor the e and couplings).
When this power cable 5 is captured by the surfaces 11 of the socket 8 of the tread 1, as the width of the open groove 4 is less than the width of the power cable 5.
Pump-compressor pipe 10 lifting mechanism tapered thread is inserted through the channel 2 protector 1 at the wellhead in the clutch 9 (figure 2).
In the process of screwing the tubing 10 with the sleeve 9 at the wellhead protector 1 through channel 2 and a tapered pipe thread is stretched on the surface of the tubing and power cable 5 is fixed in the socket 8 through the surface 11 of the socket 8 of the protector 1, the outer diameter of the coupling sleeve 9 and is pressed against the outer surface of the tubing 10.
While turning 12 made coaxially with the axis of the channel of the tread 1, communicates with the inner diameter of the bore 13, is made in the sleeve 9, and at the same time with an external diameter of sbeg tapered threads 14 made in the pump-compressor pipe according to GOST 633-80 - pipe tubing and couplings, provides for additional mounting of the protector on the suspension and simultaneously seals the threaded connection screwing the coupling and the tubing at the wellhead.
In a dynamic situation when running or lifting of the suspension tubing with electrical submersible pump and power cable in the borehole, the protector elements which interact as follows.
In the process of running, lifting of the suspension tubing with electrical submersible pump and power cable 5 in the attachment of the production casing 15 with couplings, as well as areas of their curvature in the well, particularly the suitability or horizontal wells, mechanical contact between the inner channel 16 of the casing 15 and the tread 1 with power cable 5.
Power cable 5, is laid in the slot 8 and is fixed breathtaking surfaces 11, and the outer surfaces of the tubing 10 and the clutch 9, protected from mechanical damage by the reflectors 7, communicating with the internal channel 16 of the casing 15 (Fig 3), as during the descent and ascent of the suspension tubing in the well.
The presence of the tread 1 turning 12 made coaxially with the axis of the channel of the tread 1 and communicating with the inner diameter of the bore 13 in the sleeve 9 and the outer diameter of sbeg tapered threads 14 of the tubing 10, provides additional mounting of the protector on the suspension and simultaneously sealing the threaded coupling and pipe during operation.
Proposed new technical solution of the protector to protect the power cable in the process of running, lifting of the suspension in the well with the electro is Interbilim pump differs from the known technical solutions novelty, technology in the manufacture, convenient for installation and dismantling as on the mouth, and above the mouth of the well, reliable in operation, competitive, and its use in production will provide a positive technical and economic effect.
The level of technical solutions offered protector to protect the power cable in the borehole has no analogues in the Russian Federation and abroad.
sources of information
1. Patent of Russia, having got no 2204685, CL E 21 17/10,47/01
2. Patent of Russia, having got no 2120537 C1, cle 21 B17/10,1998,
3. U.S. patent No. 4042023 And cle 21 B17/10,1977,
4. U.S. patent No. 3893778 And CL L 58/00,1975
5. GOST 633-80. Pipe tubing and couplings.
6. GOST 632-80. Casing pipes and couplings.
1. Protector to protect the power cable in the well, comprising a housing and a groove to accommodate the power cable, characterized in that it has reflectors for communication with the internal TV production casing, and the casing closed in the form of earrings with a thicker part and a channel for gripping the tubing, with thickened parts are made of the nest and there is a slot made open to input angle α to the axis of the groove of the power cable and lock when threading pipe with coupling at the wellhead, with the width of the open groove is less than the width of the power cable, and the surface nests zahwah Yausa power cable, made with the possibility of compressing the cable to the surface of the tubing.
2. The protector according to claim 1, characterized in that the edge protector coaxially with the axis of the channel is performed turning to interact with the inner diameter of the bore in the sleeve and with an outer diameter of sbeg conical thread tubing for mounting the protector on the suspension tubing and simultaneous sealing of threaded connections screwing the coupling and pipe.