CN117477460A - Cable tube sealing device and operation method thereof - Google Patents

Cable tube sealing device and operation method thereof Download PDF

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Publication number
CN117477460A
CN117477460A CN202210873706.3A CN202210873706A CN117477460A CN 117477460 A CN117477460 A CN 117477460A CN 202210873706 A CN202210873706 A CN 202210873706A CN 117477460 A CN117477460 A CN 117477460A
Authority
CN
China
Prior art keywords
cable
sealing
groove
protection mechanism
well
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210873706.3A
Other languages
Chinese (zh)
Inventor
刘少亮
王�琦
吴修华
王潘强
刘金明
杨光建
胡波
孙艺民
赵法武
刘保军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co
Original Assignee
China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Shengli Oilfield Co filed Critical China Petroleum and Chemical Corp
Priority to CN202210873706.3A priority Critical patent/CN117477460A/en
Publication of CN117477460A publication Critical patent/CN117477460A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0418—Covers or lids; Their fastenings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0437—Channels
    • H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The invention discloses a cable tube sealing device and an operation method thereof, wherein the cable tube sealing device comprises a body; the device also comprises a sealing protection mechanism and a fixing mechanism; the outer wall of the body is provided with a groove for laying a cable; the sealing protection mechanism surrounds the outside of the cable in the groove, and the outermost wall surface of the sealing protection mechanism and the outer wall surface of the body except the groove are positioned on the same cylinder surface; the fixing mechanism fixes the seal protection mechanism on the body. The sealing protection mechanism comprises a sealing shell, the sealing shell is arranged in the groove, and the cable penetrates through the sealing shell. In the process of lifting the electric pump cable pipe column in the underground well repairing operation, the safety of operation well control is improved, the electric pump cable is effectively protected, and the phenomenon that the electric pump pipe column cannot be closed when the electric pump pipe column is temporarily stopped or stopped at night is avoided. The well closing of the cable pipe column in the electric pump well construction is realized, the well control safety is improved, the electric pump cable is effectively protected, and the gap that the electric pump well pipe column cannot be closed is filled.

Description

Cable tube sealing device and operation method thereof
Technical Field
The invention relates to the field of oil well operation tools, in particular to a cable pipe sealing device and an operation method thereof.
Background
One of the common processes when the electric pump pipe column is started and lowered during well repairing operation is constructed, because the flashboard of the well plugging device can only seal cylindrical objects conforming to the flashboard size of the flashboard, and the electric pump cable is attached to the outer side of the pipe column and protrudes out, the well plugging device cannot realize well plugging operation, and at present, when the electric pump well is stopped at night or when special conditions require well plugging, a construction team can only plug a well by opening a wellhead or shearing a power-off cable, so that great potential safety hazards and waste of cost are brought to construction. Therefore, the electric pump well cable pipe column sealing device which accords with the current well plugging device size needs to be designed, well control is effectively carried out, production cost is saved, cable damage is avoided, and the purpose of safe production is achieved.
Publication (bulletin) number: CN103775750a, publication (date): 2014-05-07 discloses a coiled tubing cable penetrating sealing device, which belongs to the field of coiled tubing cable injection tools of petroleum equipment. Comprising the following steps: the cable sealing device comprises a shell, a connecting sleeve and a connecting pipe, wherein the shell is a hollow cylinder, one end of the shell is provided with the connecting sleeve, the other end of the shell is provided with the connecting pipe, the connecting pipe forms a body of the cable sealing device, and an inner cavity of the connecting sleeve is provided with a piston, a spring and a sealing device. Through setting up sealing device in the casing to adopt hydraulic means to compress tightly, in coiled tubing wears the cable in-process, when the cable received the water pressure, because sealing device's last cover of pressing with press down the cover and compress tightly the sealed core, make sealed core warp and hold tightly the cable, play sealed effect, but through hydraulic means adjusting the contact force between sealed core and the cable, effectively prevent that liquid from leaking. The sealing device is particularly suitable for sealing when the coiled tubing is pressed in the process of penetrating the cable in the coiled tubing in oil well operation.
Publication (bulletin) number: CN100502186C, publication (date): 2009-06-17 discloses a connection method and a butt joint device of cables in an oil pipe of an electric submersible pump well. The problems that when the existing underground cable of the submersible electric pump well is connected, the cable is easy to damage due to the fact that the oil pipe is externally connected are solved, the operation cost is high, the working procedures are complicated, the pump detection operation efficiency is reduced, and the like. The method is characterized in that: the cable butt joint device with the cable upper connector (a) and the cable lower connector (b) is used, the cable is placed in an oil pipe, and the butt joint of the underground cable is completed by using the butt joint device. When the cable is required to be lifted, the cable upper connector (a) in the butt joint device is lifted, and the snap ring in the cable upper connector (a) breaks and shears the lock hook in the female locking body, so that the cable upper connector (a) and the upper cable are lifted. After the method is applied, the cable is not attached to the outside of the oil pipe, and the cable is prevented from being damaged. In addition, the method is used for butt joint of the underground submersible electric pump cable, is extremely simple to operate, and greatly improves the pump detection operation efficiency.
Publication (bulletin) number: CN104134965B, publication (date): 2016-09-07 relates to a modular cable head for an electric submersible pump assembly. The problems of complex cable connection process and low connection quality of the conventional submersible electric pump unit in the well descending process are mainly solved. The method is characterized in that: the connector is internally fixed with a motor lead connecting plug, the upper part of the motor lead connecting plug is connected with a cable core wire connecting plug, the upper end of the cable core wire connecting plug is connected with a cable, a plurality of compression rings are sleeved outside the cable, a sealing ring is arranged between every two adjacent compression rings, and the upper parts of the compression rings are fixed through compression plates. The modularized cable head of the submersible electric pump unit can realize the quick connection between the cable and the submersible motor during the underground operation of the submersible electric pump unit, thereby greatly reducing the field workload and improving the cable connection quality.
Publication (bulletin) number: CN111740361a, publication (date): 2020-10-02 discloses a cable tube protection tube convenient for a cable tube to pass through, which comprises a protection tube body, wherein a notch is formed in the outer surface of the protection tube body, dovetail grooves are formed in the outer surface of the protection tube body, which is positioned at the notch, on one side, close to each other, of the protection tube body, and a sealing plate is embedded in the outer surface of the protection tube body, which is positioned at the notch; according to the invention, the cable is put into the notch formed in the protective tube body, and then the sealing plate is embedded into the protective tube body, so that the protective tube body is a finished tube body, and the problems in the prior art can be effectively solved.
The technical scheme of the above disclosed technology, the technical problems to be solved and the generated beneficial effects are different from those of the invention, and the technical documents disclosed above have no technical teaching aiming at more technical features of the invention, the technical problems to be solved and the beneficial effects.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a cable pipe sealing device and an operation method thereof, which are used for improving the well control safety of the operation and effectively protecting an electric pump cable in the process of lifting the electric pump cable pipe column in the underground well repairing operation and avoiding the phenomenon that the electric pump pipe column cannot be closed when the electric pump pipe column is temporarily stopped or stopped at night. The well closing of the cable pipe column in the electric pump well construction is realized, the well control safety is improved, the electric pump cable is effectively protected, and the gap that the electric pump well pipe column cannot be closed is filled.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a cable tube sealing device comprises a body;
the device also comprises a sealing protection mechanism and a fixing mechanism;
the outer wall of the body is provided with a groove for laying a cable;
the sealing protection mechanism surrounds the outside of the cable in the groove, and the outermost wall surface of the sealing protection mechanism and the outer wall surface of the body except the groove are positioned on the same cylinder surface;
the fixing mechanism fixes the seal protection mechanism on the body.
Further, the seal protection mechanism comprises a seal shell, the seal shell is arranged in the groove, and the cable penetrates through the seal shell.
Further, the sealing shell is a nitrile rubber sealing shell.
Further, the sealing shell comprises an inner concave sealing shell and an outer concave sealing shell which are buckled, namely the cable is wrapped after the inner concave sealing shell and the outer concave sealing shell are buckled.
Further, the seal protection mechanism further comprises a guard plate, the inner side surface of the guard plate presses the outer wall of the seal shell, and the outer side wall surface of the guard plate and the outer wall surface of the body except the groove are positioned on the same cylinder surface.
Further, the fixing mechanism comprises a fixing clip which surrounds and clamps the guard plate and the body.
Further, the seal protection mechanism is fully attached to the inner wall of the groove in the groove.
Further, the body is provided with a circulating hole which is axially communicated.
Further, the initial end port of the body is connected with the upper connector, and the final end port of the body is provided with threads as the lower connector.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a method of operating a cable duct sealing device comprising the steps of:
the upper joint and the lower joint are connected and fastened with the well inner pipe column by pipe tongs;
mounting the cable into the inner sealing shell, and covering a guard plate;
fixing the guard plate and the body into a whole by using a fixing clip, and ensuring that the surface of the outermost wall of the guard plate and the surface of the outer wall of the body except the groove are positioned on the same cylinder surface;
the oil pipe elevator is removed, the device is lowered to the position of the semi-seal flashboard, and the flashboard is closed;
and closing the internal blowout prevention tool plug valve to finish the well sealing operation.
Compared with the prior art, the invention has the following beneficial effects:
the invention can realize well sealing in the process of lifting and descending the electric pump well, ensure well control safety if the electric pump well is stopped at night or the well sealing operation is required under special conditions, effectively reduce labor intensity of workers, reduce cable loss, improve construction safety and avoid blowout accidents caused by incapability of closing the well during the stop. When the well is needed to be closed, the body is connected and fastened with the inner pipe column of the well, the cable is inlaid into the concave butadiene acrylonitrile rubber, the guard plate and the outer concave butadiene acrylonitrile rubber are covered, the guard plate and the body are fixed into a whole by the fixing clips, the elevator is taken off by the lifting pipe column, the internal blowout prevention tool plug valve is connected and fastened with the upper connector, the semi-sealing flashboard of the well sealer is closed, the flashboard extrudes the guard plate, the body and the inner concave rubber, the rubber is deformed, the sealing around among the rubber, the body, the cable and the guard plate is realized, the annular space of the sealing oil jacket is realized, the internal blowout prevention tool plug valve is closed, and the purpose of sealing the well is completed.
Drawings
FIG. 1 is a schematic view of a cable tube sealing device according to the present invention;
FIG. 2 is a top view of the body of a cable tube sealing device of the present invention;
fig. 3 is a cross-sectional view of an inventive cable tube sealing device.
In the figure: the cable connector comprises an upper connector 1, a body 2, a fixing clip 3, an inner concave nitrile rubber sealing shell 4, an outer concave nitrile rubber sealing shell 5, a circulating hole 6, a guard plate 7, a lower connector 8, a groove 9 and a cable 10.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1 to 3, a cable tube sealing device of the present embodiment includes a body 2;
the device also comprises a sealing protection mechanism and a fixing mechanism;
the outer wall of the body is provided with a groove 9 for laying a cable;
the seal protection mechanism surrounds the outside of the cable 10 in the groove, and the outermost wall surface of the seal protection mechanism and the outer wall surface of the body except the groove are positioned on the same cylinder surface;
the fixing mechanism fixes the seal protection mechanism on the body.
Further, the seal protection mechanism comprises a seal shell, the seal shell is arranged in the groove, and the cable penetrates through the seal shell.
Further, the sealing shell is a nitrile rubber sealing shell.
Further, the sealing shell comprises an inner concave sealing shell and an outer concave sealing shell which are buckled, namely the cable is wrapped after the inner concave sealing shell and the outer concave sealing shell are buckled.
Further, the seal protection mechanism further comprises a guard plate 7, the inner side surface of the guard plate presses the outer wall of the seal shell, and the outer side wall surface of the guard plate and the outer wall surface of the body except the groove are positioned on the same cylinder surface.
Further, the fixing mechanism comprises a fixing clip 3 which surrounds and clamps the guard plate and the body.
Further, the seal protection mechanism is fully attached to the inner wall of the groove in the groove.
Further, the body is provided with a circulating hole 6 which is axially communicated.
Further, the initial end port of the body is connected with the upper connector 1, and the final end port of the body is provided with threads as the lower connector 8.
The upper connector 1 is used for connecting an internal blowout prevention tool plug valve;
the body 2 is formed by milling a groove on the outer wall of the body, and is used for installing concave nitrile rubber 4 and internally milling a circulating hole 6 as a well washing and killing channel, and an oil pipe screw thread lower joint 8 is selected at the lower part and connected with an inner pipe column of a well;
the fixing clip 3 is used for fixing the guard plate 7, the cable and the inner and outer concave butadiene acrylonitrile rubber 4.5, so that dislocation of the cable and the concave rubber of the well plugging device flashboard Guan Jingshi is avoided, and meanwhile, the guard plate 7 is prevented from falling off;
the concave-type nitrile rubber 4 is identical to the groove of the body and is used for embedding the cable into the groove, sealing the inner side of the cable and realizing secondary sealing with the body 2 and the cable;
the outer concave nitrile rubber 5 is identical to the guard plate groove and is used for sealing the outer side of the cable to realize secondary sealing with the guard plate and the cable;
a circulation hole 6, which is a circulation passage for washing the kill well;
the guard plate 7 is used for installing outer concave nitrile rubber 5 and protecting the cable from being extruded and deformed by the flashboard, and forms a cylinder suitable for the flashboard of the blowout preventer with the body 2;
and a lower joint 8, which is used for connecting an electric pump string in a well.
The operation method comprises the following steps:
1. before use, checking whether rubber, joints and the like are intact, flexible and easy to use;
2. the pipe tongs are connected with an inner pipe column of the well for tightening;
3. the cable is arranged in concave nitrile rubber, and a guard plate is covered;
4. the guard board and the body are fixed into a whole by an upper fixing clip and a lower fixing clip;
5. the oil pipe elevator is removed, the device is lowered to the position of the semi-seal flashboard, and the flashboard is closed;
6. and closing the internal blowout prevention tool plug valve to finish the well sealing operation.
1. The upper joint is used for connecting an internal blowout prevention tool plug valve; 2. the body is used for bearing and suspending the lower pipe column sling weight and is also used for installing concave nitrile rubber; 3. the fixing clip is used for fixing the guard board, the cable and the inner and outer nitrile rubber, so that dislocation of the cable and the concave rubber of the well sealer flashboard Guan Jingshi is avoided, and meanwhile, drill sticking accidents caused by falling of the guard board are prevented; 4. the concave butadiene acrylonitrile rubber is consistent with the groove of the body and is used for embedding the cable into the groove, sealing the inner side of the cable and realizing secondary sealing with the body and the cable; 5. the outer concave nitrile rubber is consistent with the guard plate groove and is used for sealing the outer side of the cable to realize secondary sealing with the guard plate and the cable; 6. the circulating hole is used for washing a circulating channel of the killing well; 7. the guard board is used for installing outer concave nitrile rubber, protecting the cable from extrusion deformation of the flashboard, and forming a cylinder suitable for the flashboard of the blowout preventer with the body; 8. the lower joint is used for connecting an electric pump string in the well. The working principle is as follows: the body and the concave butadiene acrylonitrile rubber form an integral adhesion structure, and the guard plate and the outer concave butadiene acrylonitrile rubber form an integral adhesion structure.
When the well is needed to be closed, the body is connected and fastened with the inner pipe column of the well, the cable is inlaid into the concave butadiene acrylonitrile rubber, the guard plate and the outer concave butadiene acrylonitrile rubber are covered, the guard plate and the body are fixed into a whole by the fixing clips, the elevator is taken off by the lifting pipe column, the internal blowout prevention tool plug valve is connected and fastened with the upper connector, the semi-sealing flashboard of the well sealer is closed, the flashboard extrudes the guard plate, the body and the inner concave rubber, the rubber is deformed, the sealing around among the rubber, the body, the cable and the guard plate is realized, the annular space of the sealing oil jacket is realized, the internal blowout prevention tool plug valve is closed, and the purpose of sealing the well is completed.
Example 2:
as shown in fig. 1 to 3, a cable tube sealing device of the present embodiment includes a body 2;
the device also comprises a sealing protection mechanism and a fixing mechanism;
the outer wall of the body is provided with a groove 9 for laying a cable;
the seal protection mechanism surrounds the outside of the cable 10 in the groove, and the outermost wall surface of the seal protection mechanism and the outer wall surface of the body except the groove are positioned on the same cylinder surface;
the fixing mechanism fixes the seal protection mechanism on the body.
Further, the seal protection mechanism comprises a seal shell, the seal shell is arranged in the groove, and the cable penetrates through the seal shell.
Further, the sealing shell is a nitrile rubber sealing shell.
Further, the sealing shell comprises an inner concave sealing shell and an outer concave sealing shell which are buckled, namely the cable is wrapped after the inner concave sealing shell and the outer concave sealing shell are buckled.
Further, the seal protection mechanism further comprises a guard plate 7, the inner side surface of the guard plate presses the outer wall of the seal shell, and the outer side wall surface of the guard plate and the outer wall surface of the body except the groove are positioned on the same cylinder surface.
Example 3:
as shown in fig. 1 to 3, a cable tube sealing device of the present embodiment includes a body 2;
the device also comprises a sealing protection mechanism and a fixing mechanism;
the outer wall of the body is provided with a groove 9 for laying a cable;
the seal protection mechanism surrounds the outside of the cable 10 in the groove, and the outermost wall surface of the seal protection mechanism and the outer wall surface of the body except the groove are positioned on the same cylinder surface;
the fixing mechanism fixes the seal protection mechanism on the body.
Further, the seal protection mechanism comprises a seal shell, the seal shell is arranged in the groove, and the cable penetrates through the seal shell.
Although all of the above embodiments use fig. 1-3, it will be apparent to those skilled in the art that separate drawings are not provided to illustrate the embodiments, so long as the missing components or structural features are removed from the drawings. As will be clear to a person skilled in the art. Of course, the more components of the embodiment are just the optimal embodiment, the fewer components of the embodiment are basic embodiments, but the basic object of the invention can be achieved, so all the modified embodiments are within the protection scope of the invention.
All parts themselves which are not discussed in the present application and all parts connection modes in the present application belong to the known technology in the technical field. The preparation can be directly applied and is not repeated.
In the present invention, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cable tube sealing device comprises a body;
the sealing protection mechanism is characterized by also comprising a sealing protection mechanism and a fixing mechanism;
the outer wall of the body is provided with a groove for laying a cable;
the sealing protection mechanism surrounds the outside of the cable in the groove, and the outermost wall surface of the sealing protection mechanism and the outer wall surface of the body except the groove are positioned on the same cylinder surface;
the fixing mechanism fixes the seal protection mechanism on the body.
2. The cable duct sealing arrangement of claim 1, wherein the seal protection mechanism comprises a seal housing disposed within the recess, the cable passing through the seal housing.
3. The cable duct sealing arrangement of claim 2, wherein the sealing shell is a nitrile rubber sealing shell.
4. A cable duct sealing device according to claim 2 or 3, wherein the sealing shell comprises a buckled inner concave sealing shell and an outer concave sealing shell, namely the inner concave sealing shell and the outer concave sealing shell are buckled to wrap the cable.
5. A cable duct sealing apparatus according to claim 2 or 3, wherein the seal protecting means further comprises a shield, the shield inner side pressing against the outer wall of the seal housing, the shield outer side wall surface being on the same cylindrical surface as the body outer wall surface except for the groove.
6. The cable duct sealing arrangement of claim 5, wherein the securing mechanism includes a securing clip that simultaneously surrounds and retains the shield and body.
7. The cable duct sealing arrangement of claim 6, wherein the seal protection mechanism is fully engaged with the inner wall of the groove within the groove.
8. A cable duct sealing device according to claim 2 or 3, wherein the body is provided with an axially extending circulation bore.
9. A cable duct sealing device according to claim 2 or 3, wherein the body initial port is connected to the upper connector and the body final port is threaded as the lower connector.
10. A method of operating a cable duct sealing device, comprising the steps of:
the upper joint and the lower joint are connected and fastened with the well inner pipe column by pipe tongs;
mounting the cable into the inner sealing shell, and covering a guard plate;
fixing the guard plate and the body into a whole by using a fixing clip, and ensuring that the surface of the outermost wall of the guard plate and the surface of the outer wall of the body except the groove are positioned on the same cylinder surface;
the oil pipe elevator is removed, the device is lowered to the position of the semi-seal flashboard, and the flashboard is closed;
and closing the internal blowout prevention tool plug valve to finish the well sealing operation.
CN202210873706.3A 2022-07-21 2022-07-21 Cable tube sealing device and operation method thereof Pending CN117477460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210873706.3A CN117477460A (en) 2022-07-21 2022-07-21 Cable tube sealing device and operation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210873706.3A CN117477460A (en) 2022-07-21 2022-07-21 Cable tube sealing device and operation method thereof

Publications (1)

Publication Number Publication Date
CN117477460A true CN117477460A (en) 2024-01-30

Family

ID=89626204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210873706.3A Pending CN117477460A (en) 2022-07-21 2022-07-21 Cable tube sealing device and operation method thereof

Country Status (1)

Country Link
CN (1) CN117477460A (en)

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