CN219344664U - Slip type downhole choke - Google Patents

Abstract

The utility model discloses a slip type downhole choke, which comprises a slip block, wherein the lower end of the slip block is provided with a first thread groove, the interior of the first thread groove is connected with a choke body in a threaded manner, two mounting grooves are formed in two sides of the lower surface of the slip block, and two clamping grooves are formed in the inner side walls of one opposite sides of the two mounting grooves, so that the slip type downhole choke has the beneficial effects that: through setting up first screw thread groove and making things convenient for threaded connection choke body, realize preliminary spacing, under the slip limiting displacement of spout and slide bar, can drive the inserted bar when L shape pole removes and pass the jack, the connecting hole gets into inside the draw-in groove, it is convenient to carry out spacingly to the choke body, bolt threaded connection increases the overall connection stability of slips piece and choke body in second screw thread inslot portion, prevent both to break away from because outside reason when conveniently follow-up salvaging, convenient to use, the later stage dismouting of being convenient for is convenient for simultaneously, maintains and changes the use, it is more convenient to use.

Description

Slip type downhole choke

Technical Field

The utility model relates to the field of downhole throttling tool temperature, in particular to a slip type downhole throttler.

Background

In the exploitation process of natural gas, the pressure of a wellhead and a gas collecting pipeline can be effectively reduced by the underground throttling process, so that the blockage of hydrate in a gas well is reduced, the liquid carrying capacity of the gas flow is improved, the energy loss of a stratum is reduced, the safety is improved, the production cost is reduced, the underground throttling process is widely popularized and applied to various domestic large oil and gas fields, the effect is very remarkable, the key technology of the underground throttling process is that the underground throttler is reasonable in structural design, and the reasonable or not is directly related to the success or failure of the implementation of the throttling process. Thus, those skilled in the art of hydrocarbon production have devised, through trial and error and demonstration, downhole chokes of various structures and functions.

The slip type downhole choke needs to be salvaged when being installed underground, but at present, the slips are connected and fixed through the clamping ring, and because the clamping ring is usually a welding piece, external damage is easily caused when the slip type downhole choke is used, so that internal connection is unstable, the reliability of the slip type downhole choke is low, connection and fixation failure is easily caused in the operation process, the slips are separated from the slip seat, and the risk of salvaging failure of the downhole choke is increased.

Disclosure of Invention

The present utility model is directed to a slip-type downhole choke that solves the problems set forth in the background art above.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a slip type downhole choke, includes a slip piece, a first thread groove has been seted up to slip piece lower extreme, a choke body has been seted up to the inside threaded connection of first thread groove, two mounting grooves have been seted up to slip piece lower surface both sides, two a draw-in groove has all been seted up to mounting groove one side inside wall in opposite directions, two a jack has all been run through to mounting groove opposite side lateral wall, the choke body is close to the outer wall of upper end position and rotates through the bearing and be connected with a spacing ring, two spacing pole of spacing ring upper end both sides fixedly connected with, two a connecting hole has all been run through to the corresponding position of spacing pole and two draw-in grooves and two jacks, two jack, two draw-in grooves and two connecting holes joint movement have been inserted a inserted bar.

Preferably, two symmetrically arranged connecting grooves are formed in the side walls of two sides of the upper end of the slip block, two sliding grooves are formed in the inner walls of two ends of each connecting groove, four sliding rods are connected in the sliding grooves in a sliding mode, one side of each sliding rod extends to the two connecting grooves in opposite directions and is fixedly connected with two L-shaped rods, two second thread grooves are formed in two sides of the upper end of the slip block, two connecting plates are fixedly connected with one connecting plate at the upper end of each L-shaped rod, two threaded holes are formed in the connecting plates in a penetrating mode, and two threaded holes and two second thread grooves are connected with two bolts in a threaded mode.

Preferably, a fixed slot is fixedly connected to the center of the upper end of the throttle body, an inserting block is movably inserted in the fixed slot, and the upper end of the inserting block is fixedly connected to the lower surface of the slip block.

Preferably, the outer surfaces of the two bolts are coated with a layer of waterproof sealing paint, and the positions of the two second thread grooves and the two threaded holes are coated with corresponding waterproof sealing paint.

Compared with the prior art, the utility model has the beneficial effects that: through setting up first thread groove and making things convenient for threaded connection choke body, realize preliminary spacing, simultaneously through setting up the slip limiting displacement down of spout and slide bar, can drive the inserted bar when L shape pole removes and pass jack, inside the connecting hole gets into the draw-in groove, further convenient spacing the choke body, simultaneously increase the overall connection stability of slips piece and choke body at the inside increase slip piece of second thread groove of bolt threaded connection, prevent both when conveniently salvaging owing to outside reason break away from, convenient to use, the later stage dismouting of being convenient for is convenient for simultaneously, maintains to change and uses, and it is more convenient to use.

Drawings

FIG. 1 is a schematic overall sectional view of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the present utility model;

FIG. 3 is an enlarged schematic view of the portion B of FIG. 1 according to the present utility model;

FIG. 4 is a schematic view in bottom cross-section of a slip segment of the present utility model.

In the figure: 1. slip segments; 2. a first thread groove; 3. a throttle body; 4. a mounting groove; 5. a clamping groove; 6. a jack; 7. a limiting ring; 8. a limit rod; 9. a connection hole; 10. a rod; 11. a connecting groove; 12. a chute; 13. a chute; 14. an L-shaped rod; 15. a second thread groove; 16. a connecting plate; 17. a threaded hole; 18. a bolt; 19. a fixing groove; 20. and (5) inserting blocks.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the slip type downhole throttler comprises a slip block 1, wherein a first thread groove 2 is formed in the lower end of the slip block 1, a throttler body 3 is connected to the inner thread of the first thread groove 2, two mounting grooves 4 are formed in two sides of the lower surface of the slip block 1, a clamping groove 5 is formed in the inner side wall of one side of the two mounting grooves 4 opposite to each other, a jack 6 is formed in the side wall of the other side of the two mounting grooves 4 opposite to each other in a penetrating manner, a limiting ring 7 is connected to the outer wall, close to the upper end, of the throttler body 3 in a rotating manner through a bearing, two limiting rods 8 are fixedly connected to the two sides of the upper end of the limiting ring 7, a connecting hole 9 is formed in the corresponding positions of the two limiting rods 8, the two clamping grooves 5 and the two jacks 6 in a penetrating manner, and a plug rod 10 is inserted in a movable manner together; two connecting grooves 11 that are the symmetry setting have been seted up to slips piece 1 upper end both sides lateral wall, two spouts 12 have been seted up to two connecting groove 11 both ends inner wall, equal sliding connection has a slide bar 13 in four spouts 12, four slide bars 13 extend to two connecting groove 11 in opposite directions one side and two L shape poles 14 of fixedly connected with, two second screw thread grooves 15 have been seted up to slips piece 1 upper end both sides, and two L shape pole 14 upper end equal fixedly connected with connecting plate 16, a screw hole 17 has all been run through to two connecting plates 16, two screw holes 17 and two common threaded connection of second screw thread grooves 15 have two bolts 18.

The fixed slot 19 is fixedly connected to the center of the upper end of the throttle body 3, the insert block 20 is movably inserted into the fixed slot 19, the upper end of the insert block 20 is fixedly connected to the lower surface of the slip segment 1, and the insert block 20 is beneficial to being inserted into the fixed slot 19, so that the throttle body 3 is limited.

The outer surfaces of the two bolts 18 are coated with a layer of waterproof sealing paint, and the corresponding waterproof sealing paint is coated at the inner thread positions of the two second thread grooves 15 and the two threaded holes 17, so that the sealing performance of the bolts 18, the threaded holes 17 and the second thread grooves 15 is improved through the waterproof sealing paint, corrosion is prevented, and the service life is prolonged.

Specifically, when the utility model is used, the two L-shaped rods 14 are pulled firstly, the L-shaped rods 14 can stably move under the sliding limiting action of the sliding grooves 12 and the sliding rods 13, meanwhile, the L-shaped rods 14 can synchronously drive the inserted rods 10 to move, when the inserted rods 10 move into the two jacks 6, the throttle body 3 is in threaded connection with the inside of the first threaded grooves 2, the limiting rings 7 are limited at the moment, the throttle body 3 can be stably driven to be in threaded connection with the inside of the first threaded grooves 2 under the rotating connection action of the bearings, and the limiting rods 8 can be driven to be inserted into the inside of the two mounting grooves 4 through the limiting rings 7 along with the rising of the throttle body 3. At this time, the L-shaped rod 14 is pushed, the L-shaped rod 14 drives the inserted rod 10 to pass through the two insertion holes 6 and the two connecting holes 9 under the sliding limiting action of the sliding groove 12 and the sliding rod 13, the inside of the two clamping grooves 5 is inserted to stably connect the throttle body 3, and at this time, the bolt 18 passes through the threaded holes 17 to be fastened inside the two second threaded grooves 15, so that the connection stability is improved.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. Slip formula downhole choke ware, its characterized in that: including a slip piece (1), a first thread groove (2) has been seted up to slip piece (1) lower extreme, a restrictor body (3) has been seted up to first thread groove (2) inside threaded connection, two mounting groove (4) have been seted up to slip piece (1) lower surface both sides, two mounting groove (4) are opposite side inside wall has all seted up a draw-in groove (5), two jack (6) have all been run through to mounting groove (4) are opposite one side lateral wall, restrictor body (3) are close to the outer wall of upper end position and are connected with a spacing ring (7) through the bearing rotation, two spacing rod (8) are connected with to spacing ring (7) upper end both sides fixedly, two connecting hole (9) have all been run through to the corresponding position of spacing rod (8) and two draw-in grooves (5) and two jack (6), two jack (5) and two connecting hole (9) have jointly movably been inserted a inserted rod (10).

2. The slip type downhole choke as set forth in claim 1, wherein: two connecting grooves (11) that are the symmetry setting have been seted up to slips piece (1) upper end both sides lateral wall, two connecting groove (11) both ends inner wall has been seted up two spouts (12), four equal sliding connection has a slide bar (13) in spout (12), four slide bar (13) extend to two connecting grooves (11) in opposite side and fixedly connected with two L shape poles (14), two second screw thread groove (15) have been seted up to slips piece (1) upper end both sides, and two L shape pole (14) upper end equal fixedly connected with connecting plate (16), two connecting plate (16) have all run through and have seted up a screw hole (17), two screw hole (17) and two second screw thread groove (15) common threaded connection have two bolts (18).

3. The slip type downhole choke as set forth in claim 1, wherein: the throttle body (3) upper end center department fixedly connected with fixed slot (19), fixed slot (19) internal activity is inserted and is equipped with a plug (20), plug (20) upper end fixed connection is at slips piece (1) lower surface.

4. The slip type downhole choke as set forth in claim 2, wherein: the outer surfaces of the two bolts (18) are coated with a layer of waterproof sealing paint, and the positions of the second thread grooves (15) and the inner threads of the two threaded holes (17) are coated with corresponding waterproof sealing paint.

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