CN109025967B - Portable anti-drop, quick-release and anti-blowout pipe device - Google Patents

Portable anti-drop, quick-release and anti-blowout pipe device Download PDF

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Publication number
CN109025967B
CN109025967B CN201811009023.3A CN201811009023A CN109025967B CN 109025967 B CN109025967 B CN 109025967B CN 201811009023 A CN201811009023 A CN 201811009023A CN 109025967 B CN109025967 B CN 109025967B
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China
Prior art keywords
sleeve
taper sleeve
spring
test
drop
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CN109025967A (en
Inventor
王纯
王春明
程琳
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Heilongjiang Yiaien New Material Technology Development Co ltd
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Heilongjiang Yiaien New Material Technology Development Co ltd
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    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
    • E21B17/026—Arrangements for fixing cables or wirelines to the outside of downhole devices

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The utility model provides a portable, prevent falling, take off soon, lubricator device, relate to oil field logging device field, including the lubricator, test end cap and guide pulley, the test end cap passes through threaded connection in the upper end of lubricator, still include the cable head supporting with the test end cap, the structure of cable head is including hanging the body, the taper sleeve, spring C and pressure cap, the taper sleeve cartridge is hanging internally, it passes through threaded connection in the bottom that hangs the body to press the cap, spring C sets up and presses between cap and the taper sleeve, thereby make the taper sleeve keep ascending trend of motion, the side of taper sleeve is provided with four axial incisions, make the taper sleeve can gather together to central authorities, thereby press from both sides tight test cable, the upper end of taper sleeve is higher than the upper end of hanging the body. The special cable head is adopted, when the instrument impacts the test plug, the lower end of the ejector rod impacts the upper end of the taper sleeve, and the taper sleeve moves downwards, so that the clamping effect with the test cable is relieved, and the aim of preventing the test cable from breaking off is fulfilled.

Description

Portable anti-drop, quick-release and anti-blowout pipe device
Technical Field
The invention belongs to the field of oil field logging devices, and particularly relates to a portable anti-drop, quick-release and anti-blowout pipe device.
Background
In the production process of an oil field, when a water well is tested, a measuring and adjusting instrument needs to be thrown and fished. In the process of fishing operation, when an instrument rises to a wellhead, the instrument often collides with a test plug due to the fault of dragging equipment or human negligence, so that a test cable connected with the instrument is broken, the measuring instrument falls into the well, a falling object accident is caused, and a large amount of operation cost can be generated by fishing the falling object. In order to solve the above problems, the invention patent document CN107859513A discloses a novel anti-drop plugging quick-release device for a water well testing instrument, however, the device still has significant disadvantages: although the device can ensure that the instrument cannot fall into the well, the test cable is pulled to be broken, unnecessary loss of the test cable is caused, and complicated subsequent work such as re-determining the length of the test cable is required.
Disclosure of Invention
The invention provides a portable anti-drop and quick-release blowout prevention pipe device, which aims to solve the problems in the background technology.
The technical problem solved by the invention is realized by adopting the following technical scheme: the invention provides a portable anti-drop, quick-release and anti-blowout pipe device, which comprises an anti-blowout pipe, a testing plug and a guide wheel, wherein the testing plug is connected to the upper end of the anti-blowout pipe through threads, the guide wheel is arranged on the side surface of the upper end of the anti-blowout pipe through a bracket, the device also comprises a cable head matched with the testing plug, the testing plug structurally comprises a plug, an installation main body, an anti-release sleeve, a mandril and a sliding sleeve, the installation main body is connected to the bottom of the plug through threads, the lower end of the installation main body is provided with a spring claw A, the upper end of the mandril is connected to the installation main body through threads, the anti-release sleeve is arranged in the installation main body, the upper end of the anti-release sleeve is inserted into an annular space between the installation main body and the mandril, a spring A capable of keeping the anti-release sleeve in a downward movement trend is arranged between the upper end of the anti-release sleeve and the installation main body, the lower end of the anti-release sleeve is provided with a spring claw B, the outer side of the spring claw B is propped against the inner side of the spring claw A, the outer side of the spring claw B is provided with a hook which plays a role in preventing falling, the upper end of the cable head is clamped on the hook, thereby realizing the anti-drop function, the sliding sleeve is sleeved outside the mounting main body, the lower end of the sliding sleeve is positioned outside the spring claw A to limit the radial movement of the spring claw A, a spring B which can enable the sliding sleeve to keep the downward movement trend is arranged between the upper end of the sliding sleeve and the plug, the structure of the cable head comprises a hanging body, a taper sleeve, a spring C and a pressing cap, wherein the taper sleeve is inserted in the hanging body, the pressing cap is connected to the bottom of the hanging body through threads, the spring C is arranged between the pressing cap and the taper sleeve, therefore, the taper sleeve keeps an upward movement trend, the side face of the taper sleeve is provided with four axial notches, the taper sleeve can be gathered towards the center, the test cable is clamped, and the upper end of the taper sleeve is higher than the upper end of the hanging body.
The height difference between the upper end of the taper sleeve and the upper end of the hanging body is not less than 3 mm.
The invention has the beneficial effects that: the invention adopts a specially-made cable head, when an instrument impacts a test plug, a suspension body is firstly hooked by an anti-falling sleeve to achieve the purpose of preventing the instrument from falling off, after the instrument continues to move upwards, the lower end of the ejector rod impacts the upper end of the taper sleeve, the taper sleeve moves downwards, so that the clamping effect with the test cable is relieved, the test cable is separated from the taper sleeve, and the purpose of preventing the test cable from breaking off is achieved. By preventing the test cable from breaking off, unnecessary loss of the test cable can be avoided, the auxiliary time of logging work is saved, and the operation efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a test plug;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic structural view of a cable head;
FIG. 4 is a schematic structural view of a drogue;
fig. 5 is a left side view of fig. 4.
In the figure, 1-plug, 2-installation body, 3-anti-slip sleeve, 4-ejector rod, 5-sliding sleeve, 6-spring claw A, 7-spring claw B, 8-instrument, 9-test cable, 10-spring A, 11-spring B, 12-hook, 13-lubricator, 14-test plug, 15-guide wheel, 16-suspension body, 17-taper sleeve, 18-spring C, 19-press cap and 20-axial notch.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the embodiment comprises a blowout preventer 13, a testing plug 14 and a guide wheel 15, wherein the testing plug 14 is connected to the upper end of the blowout preventer 13 through threads, and the guide wheel 15 is installed on the side face of the upper end of the blowout preventer 13 through a bracket. The above is a common structure in the prior art, and is not described herein again.
The main innovation point of the invention is that the test plug also comprises a cable head matched with the test plug 14. For convenient fishing, the upper end of the instrument is connected with a cable head which can be fished, but the existing cable head is absolutely fixedly connected with the test cable 9, after the test plug 14 is impacted, only the test cable 9 is broken by pulling, and the fracture point of the test cable 9 is uncertain. When the instrument 8 impacts the testing plug 14, the suspension body 16 is firstly hooked by the spring claw B7 on the anti-falling sleeve 3 to achieve the purpose of preventing the instrument 8 from falling, after the instrument 8 continues to move upwards, the lower end of the ejector rod 4 impacts the upper end of the taper sleeve 17, the taper sleeve 17 overcomes the static friction force to move downwards, the clamping effect on the testing cable 9 is relieved, the testing cable 9 falls out of the taper sleeve 17, and the purpose of preventing the testing cable 9 from breaking is achieved. By preventing the test cable 9 from breaking off, unnecessary loss of the test cable 9 can be avoided, the auxiliary time of logging work is saved, and the operation efficiency is improved.
The structure of the test plug comprises a plug 1, a mounting body 2, an anti-dropping sleeve 3, a mandril 4 and a sliding sleeve 5, wherein the mounting body 2 is connected to the bottom of the plug 1 through threads, the lower end of the mounting body 2 is provided with a spring claw A6, the upper end of the mandril 4 is connected to the mounting body 2 through threads, the anti-dropping sleeve 3 is arranged in the mounting body 2, the upper end of the anti-dropping sleeve 3 is inserted in an annular space between the mounting body 2 and the mandril 4, a spring A10 capable of enabling the anti-dropping sleeve 3 to keep a downward movement trend is arranged between the upper end of the anti-dropping sleeve 3 and the mounting body 2, the lower end of the anti-dropping sleeve 3 is provided with a spring claw B7, the outer side of the spring claw B7 abuts against the inner side of the spring claw A6, the outer side of the spring claw B7 is provided with a hook 12 with an anti-dropping function, the upper end of a cable head is clamped on the hook 12 so as to realize the anti-dropping function, the sliding sleeve 5 is sleeved on the outer side of the mounting body 2, the lower end of the sliding sleeve 5 is positioned outside the spring claw A6 to limit the radial movement of the spring claw A6, and a spring B11 which can keep the sliding sleeve 5 moving downwards is arranged between the upper end of the sliding sleeve 5 and the plug 1.
The structure of the cable head comprises a hanging body 16, a taper sleeve 17, a spring C18 and a pressing cap 19, wherein the taper sleeve 17 is inserted into the hanging body 16, the pressing cap 19 is connected to the bottom of the hanging body 16 through threads, the spring C18 is arranged between the pressing cap 19 and the taper sleeve 17, so that the taper sleeve 17 keeps an upward movement trend, four axial notches 20 are arranged on the side surface of the taper sleeve 17, the taper sleeve 17 can be gathered towards the center, so that the test cable 9 is clamped, and the upper end of the taper sleeve 17 is higher than the upper end of the hanging body 16. During specific implementation, the anti-skid texture is arranged on the surface, attached to the test cable 9, of the taper sleeve 17 to increase friction force, a certain pretightening force is applied to the taper sleeve 17 through the spring C18, the inner surface of the taper sleeve 17 is enabled to be attached to the test cable 9, and the friction force between the taper sleeve 17 and the test cable 9 is larger than the friction force between the taper sleeve and the hanging body 16, so that when the test cable 9 is pulled upwards, the taper sleeve 17 moves upwards along with the test cable, the larger the traction force is, the larger the clamping force of the taper sleeve 17 on the test cable 9 is, and the test cable 9 is reliably connected to the cable head.
The working principle of the invention is as follows:
1. preventing dropping: at the moment when the cable head impacts the testing plug 14, the suspension body 16 on the cable head upwards supports the anti-release sleeve 3 and enables the anti-release sleeve 3 to move upwards, the limiting effect of the spring claw A6 on the spring claw B7 is relieved along with the upward movement of the anti-release sleeve 3, the spring claw A expands outwards in the radial direction, so that the flange on the suspension body can cross the hook 12 and enter the inner side of the spring claw B7, and at the moment, if the cable head is hooked by the spring claw B, the anti-drop purpose is achieved.
2. Quick release: upwards slide sliding sleeve 5, the spacing in spring claw A6 outside is relieved, then pulls out the cable head downwards, and spring claw B7 makes spring claw A6 outwards expand under the guide of inclined plane, then pulls out anticreep cover 3 from installation subject 2, separates anticreep cover 3 and cable head at last and can take off the cable head fast.
3. Preventing the test cable 9 from being pulled apart: when the cable head connected to the upper end of the instrument 8 collides with the test plug 14, the cable head continues to move upwards after being hooked, the lower end of the ejector rod 4 collides with the upper end of the taper sleeve 17, the taper sleeve 17 overcomes the static friction force to move downwards, so that the clamping effect on the test cable 9 is relieved, the test cable 9 is separated from the taper sleeve 17, under the condition, the connection part between the test cable 9 and the instrument 8 can be broken, the test cable 9 cannot be broken, and the purpose of preventing the test cable 9 from breaking off is achieved.
The height difference between the upper end of the taper sleeve 17 and the upper end of the hanging body 16 is not less than 3mm, so that the taper sleeve 20 is fully separated from the test cable 9.

Claims (2)

1. The utility model provides a portable, anti-drop, take off soon, lubricator device, includes lubricator (13), test end cap (14) and guide pulley (15), and test end cap (14) pass through threaded connection in the upper end of lubricator (13), and side, its characterized in that of bracket mounting in lubricator (13) upper end are passed through in guide pulley (15): the cable head is matched with the testing plug (14), the testing plug structurally comprises a plug (1), a mounting main body (2), an anti-drop sleeve (3), an ejector rod (4) and a sliding sleeve (5), the mounting main body (2) is connected to the bottom of the plug (1) through threads, a spring claw A (6) is arranged at the lower end of the mounting main body (2), the upper end of the ejector rod (4) is connected to the mounting main body (2) through threads, the anti-drop sleeve (3) is arranged in the mounting main body (2), the upper end of the anti-drop sleeve (3) is inserted into an annular space between the mounting main body (2) and the ejector rod (4), a spring A (10) capable of enabling the anti-drop sleeve (3) to keep a downward movement trend is arranged between the upper end of the anti-drop sleeve (3) and the mounting main body (2), and a spring claw B (7) is arranged at the lower end of the anti-drop sleeve (3), the outer side of the spring claw B (7) is abutted against the inner side of the spring claw A (6), a hook (12) with an anti-dropping effect is arranged on the inner side of the spring claw B (7), the upper end of the cable head is clamped on the hook (12) so as to realize the anti-dropping function, the sliding sleeve (5) is sleeved on the outer side of the mounting main body (2), the lower end of the sliding sleeve (5) is positioned on the outer side of the spring claw A (6) so as to limit the radial movement of the spring claw A (6), a spring B (11) capable of enabling the sliding sleeve (5) to keep a downward movement trend is arranged between the upper end of the sliding sleeve (5) and the plug (1), the structure of the cable head comprises a suspension body (16), a taper sleeve (17), a spring C (18) and a pressing cap (19), the taper sleeve (17) is inserted into the suspension body (16), the pressing cap (19) is connected to the bottom of the suspension body (16) through threads, and the spring C (18) is arranged between the pressing cap (19) and the taper sleeve (17), therefore, the taper sleeve (17) keeps an upward movement trend, the side face of the taper sleeve (17) is provided with four axial notches (20), the taper sleeve (17) can be gathered towards the center, the test cable (9) is clamped, and the upper end of the taper sleeve (17) is higher than the upper end of the hanging body (16).
2. A portable, drop, quick release, lubricator device according to claim 1, wherein: the height difference between the upper end of the taper sleeve (17) and the upper end of the hanging body (16) is not less than 3 mm.
CN201811009023.3A 2018-08-31 2018-08-31 Portable anti-drop, quick-release and anti-blowout pipe device Active CN109025967B (en)

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CN201811009023.3A CN109025967B (en) 2018-08-31 2018-08-31 Portable anti-drop, quick-release and anti-blowout pipe device

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Application Number Priority Date Filing Date Title
CN201811009023.3A CN109025967B (en) 2018-08-31 2018-08-31 Portable anti-drop, quick-release and anti-blowout pipe device

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CN109025967A CN109025967A (en) 2018-12-18
CN109025967B true CN109025967B (en) 2021-08-17

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542001A (en) * 2020-11-25 2022-05-27 中国石油天然气集团有限公司 Wellhead cable fixing device

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US4874327A (en) * 1988-11-07 1989-10-17 Halliburton Logging Services, Inc. Universal cable head for a multiconductor logging cable
WO1995004290A1 (en) * 1993-08-02 1995-02-09 Moore Boyd B Improved slick line system with real-time surface display
CN2871821Y (en) * 2005-12-20 2007-02-21 张元峰 Blowout preventer on hole top for wireline logging
CN201851028U (en) * 2010-09-07 2011-06-01 中国石油集团川庆钻探工程有限公司 Cable head for connecting logging cable and downhole tool
CN203570237U (en) * 2013-12-06 2014-04-30 刘新丽 Extraction instrument pup joint on shooting nipple assembly
CN204126631U (en) * 2014-10-11 2015-01-28 中国石油天然气股份有限公司 Survey and adjust interlock safety electric cable end

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