CN220621808U - Detachable regional well head sealing device of administering - Google Patents

Abstract

The utility model relates to a detachable well head sealing device for regional treatment, and belongs to the technical field of well drilling and sealing. Comprising the following steps: chassis, drilling rod, two seal well mechanism, two adjustable sealing mechanism and sleeve pipe coupling mechanism, two seal well mechanism symmetry, and movably set up the chassis top surface, sleeve pipe coupling mechanism sets up the chassis bottom surface, the drilling rod runs through from top to bottom seal well mechanism the chassis with sleeve pipe coupling mechanism, two adjustable sealing mechanism one-to-one with seal well mechanism is close to drilling rod one end is connected, two adjustable sealing mechanism forms sealed the annular structure of cup jointing on the drilling rod lateral wall. The utility model can not produce a blocking wellhead, is convenient for subsequent drilling operation, and can select a sealable adjusting mechanism matched with the drill rod according to the size of the drill rod, so that the whole well sealing device can be matched with various drilling wells with different sizes, and the adaptability of the well sealing device is improved.

Description

Detachable regional well head sealing device of administering

Technical Field

The utility model relates to the technical field of well drilling and well sealing, in particular to a detachable well sealing device for regional treatment of a well mouth.

Background

In the construction of waterproof water-controlling well drilling and geothermal well drilling of large-caliber coal mines and the like, because of the problems of geological conditions, construction cost and the like, equipment such as blowout preventers and the like are not installed in general, but in some special cases, the orifice is required to be closed in a short time, such as the conditions of casing pressure test, in-hole mud internal circulation and the like. In the face of this situation, conventionally, a hole drilling tool is lifted into the hole, and a simple well sealing device is installed. With the advancement of drilling technology, or for various reasons within the hole, the drilling tool cannot be lifted out of the hole, but it is necessary to close the hole and to make the well-sealing device pressure-bearing. In the face of this situation, conventional well sealing devices can solve the problem, but there is a new problem that the drilling tool assembly needs to be continuously adjusted during installation, and the assembly is cumbersome to disassemble and even cannot be used under certain conditions.

For example, the prior Chinese patent with the bulletin number of CN216110627U discloses a detachable well head sealing device for regional treatment, which comprises a sealing gland, a flange plate and a sleeve, wherein the flange plate is horizontally and fixedly arranged; the sealing gland is arranged above the flange plate and is attached to the flange plate; the sleeve is coaxially and slidably sleeved outside the sealing gland, can move to be tightly pressed on the upper side of the sealing gland, and buckles the flange plate through a plurality of fastening pieces which are distributed at intervals.

With respect to the above and related art, the inventors believe that there are often the following drawbacks: when the device is used, the sealing gland and the flange plate need to be sleeved outside the drill rod, the drill rod needs to be completely removed from the well during subsequent disassembly to be disassembled, meanwhile, the drill rod needs to be completely removed from the well to be assembled again, the problem that a wellhead is blocked when the sealing gland and the flange plate are not disassembled is solved, the using effect is poor, and improvement is needed. Therefore, a detachable zone treatment wellhead sealing device is provided for solving the problems.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the detachable well mouth sealing device for regional treatment is provided to solve the problems.

The technical scheme for solving the technical problems is as follows: a detachable zone remediation wellhead well sealing device, comprising: chassis, drilling rod, two seal well mechanism, two adjustable sealing mechanism and sleeve pipe coupling mechanism, two seal well mechanism symmetry, and movably set up the chassis top surface, sleeve pipe coupling mechanism sets up the chassis bottom surface, the drilling rod runs through from top to bottom seal well mechanism the chassis with sleeve pipe coupling mechanism, two adjustable sealing mechanism one-to-one with seal well mechanism is close to drilling rod one end is connected, two adjustable sealing mechanism forms sealed the annular structure of cup jointing on the drilling rod lateral wall.

The beneficial effects of the utility model are as follows: by arranging two movable and adjustable well sealing devices on the chassis, whether the well mouth is closed or not is selected according to actual construction needs, and compared with the prior art, the problem of blocking the well mouth is avoided, so that subsequent drilling operation is facilitated; and the sealable adjusting mechanism matched with the drill rod can be selected according to the size of the drill rod, so that the whole well sealing device can be matched with various well drilling with different sizes, and the adaptability of the well sealing device is improved.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, an opening is formed in the middle of the chassis, and the opening is a through hole through which the drill rod passes.

The beneficial effects of adopting the further scheme are as follows: an opening is arranged in the middle of the chassis, so that a channel is provided for the up-and-down lifting of the drill rod.

Further, the well sealing mechanism comprises: baffle, electric putter and draw-in groove, the draw-in groove is for setting up the baffle is close to semicircular structure on the drilling rod one end lateral wall, two the draw-in groove makes up into detachable circular through-hole, electric putter with the baffle is kept away from draw-in groove one end lateral wall is connected.

The beneficial effects of adopting the further scheme are as follows: the clamping groove is favorable for providing a position for the installation of the adjustable sealing mechanism and the fixed connection of the baffle, and is matched with the electric push rod, so that the convenience of the operation of the well sealing device is improved.

Further, the baffle is a plate-shaped structure which is arranged at the top end of the chassis in a sliding mode, the electric push rod is arranged on the side wall of the chassis, and the driving end of the electric push rod is connected with the baffle.

The beneficial effects of adopting the further scheme are as follows: the electric push rod is arranged on the side wall of the chassis, which is beneficial to providing support for the movement of the driving baffle.

Further, the adjustable sealing mechanism includes: the sealing ring is of a semicircular annular structure embedded in the mounting groove, the sealing gasket is mounted on the inner wall of the sealing ring, and the connecting bolt is in threaded connection with the connecting hole.

The beneficial effects of adopting the further scheme are as follows: the adjustable sealing mechanism is beneficial to matching the size of the sealing ring with the size of the drill rod by adjusting the size of the sealing ring, so that the sealing connection with the drill rod is realized, and the sealing performance of the well sealing device is improved.

Furthermore, the mounting groove is of a semicircular groove-shaped structure with an I-shaped longitudinal section and is connected with the clamping groove in an adaptive mode, and the mounting groove is connected with the baffle.

The beneficial effects of adopting the further scheme are as follows: the mounting groove is favorable for fixedly connecting the mounting groove with the baffle plate, so that the sealing ring and the drill rod can be matched and detached to be connected, and the suitability of the well sealing device is improved.

Further, the connecting hole is formed in the baffle plate, the mounting groove and the sealing ring, and the connecting bolt sequentially penetrates through the mounting groove, the sealing ring and the connecting hole in the baffle plate and is matched with the corresponding nut to fix the mounting groove on the baffle plate.

The beneficial effects of adopting the further scheme are as follows: the connecting bolts are favorable for fixedly connecting the mounting grooves with the baffle threads and matching with the connecting holes on the sealing rings, so that the sealing rings with different sizes can be replaced, and the sealing rings are in adaptive sealing connection with the drill rods with different sizes.

Further, the sealing ring is in sealing connection with the outer wall of the drill rod through the sealing gasket.

The beneficial effects of adopting the further scheme are as follows: the sealing ring is favorable to the sealing connection of cooperation sealing gasket realization and drilling rod on the one hand, and on the other hand is favorable to improving the suitability of whole well sealing device through detachable connection.

Drawings

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a well sealing mechanism according to an embodiment of the present utility model after being unfolded;

fig. 3 is an exploded view of an adjustable seal mechanism according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a chassis; 2. a drill rod; 3. a well sealing mechanism; 4. an adjustable sealing mechanism; 5. a sleeve connecting mechanism; 11. an opening; 31. a baffle; 32. an electric push rod; 33. a clamping groove; 41. a mounting groove; 42. a seal ring; 43. a sealing gasket; 44. a connection hole; 45. and (5) connecting bolts.

Detailed Description

The principles and features of the present utility model are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, a detachable zone remediation wellhead sealing device comprises: chassis 1, drilling rod 2, two seal mechanism 3, two adjustable sealing mechanism 4 and sleeve pipe coupling mechanism 5, two seal mechanism 3 symmetry, and movably set up chassis 1 top surface, sleeve pipe coupling mechanism 5 sets up chassis 1 bottom surface, drilling rod 2 runs through from top to bottom seal mechanism 3 chassis 1 with sleeve pipe coupling mechanism 5, two adjustable sealing mechanism 4 one-to-one with two seal mechanism 3 is close to drilling rod 2 one end is connected, two adjustable sealing mechanism 4 forms sealed cup joint the annular structure on the drilling rod 2 lateral wall.

The following description is needed: the casing connection 5 is prior art in the art and the casing connection 5 is required to be inserted into the well in use, so its construction is not described in detail in this application.

The beneficial effects of the utility model are as follows: by arranging two movable and adjustable well sealing devices on the chassis, whether the well mouth is closed or not is selected according to actual construction needs, and compared with the prior art, the problem of blocking the well mouth is avoided, so that subsequent drilling operation is facilitated; and the sealable adjusting mechanism matched with the drill rod can be selected according to the size of the drill rod, so that the whole well sealing device can be matched with various well drilling with different sizes, and the adaptability of the well sealing device is improved.

Preferably, as shown in fig. 2, an opening 11 is provided in the middle of the chassis 1, and the opening 11 is a through hole through which the drill rod 2 passes.

The beneficial effects of adopting the preferable scheme are as follows: an opening is arranged in the middle of the chassis, so that a channel is provided for the up-and-down lifting of the drill rod.

Preferably, as shown in fig. 2, the well sealing mechanism 3 includes: the baffle 31, the electric putter 32 and draw-in groove 33, the draw-in groove 33 is for setting up the baffle 31 is close to semi-circular structure on the drilling rod 2 one end lateral wall, two draw-in grooves make up into detachable circular through-hole, the electric putter 32 with baffle 31 is kept away from draw-in groove 33 one end lateral wall is connected.

The beneficial effects of adopting the preferable scheme are as follows: the clamping groove is favorable for providing a position for the installation of the adjustable sealing mechanism and the fixed connection of the baffle, and is matched with the electric push rod, so that the convenience of the operation of the well sealing device is improved.

Preferably, as shown in fig. 2, the baffle 31 is a plate structure slidably disposed at the top end of the chassis 1, the electric push rod 32 is mounted on the side wall of the chassis 1, and the driving end of the electric push rod 32 is connected with the baffle 31.

The beneficial effects of adopting the preferable scheme are as follows: the electric push rod is arranged on the side wall of the chassis, which is beneficial to providing support for the movement of the driving baffle.

Preferably, as shown in fig. 3, the adjustable sealing mechanism 4 includes: the sealing device comprises a mounting groove 41, a sealing ring 42, a sealing gasket 43, a connecting hole 44 and a connecting bolt 45, wherein the sealing ring 42 is of a semicircular annular structure embedded in the mounting groove 41, the sealing gasket 43 is mounted on the inner wall of the sealing ring 42, and the connecting bolt 45 is in threaded connection with the connecting hole 44.

The beneficial effects of adopting the preferable scheme are as follows: the adjustable sealing mechanism is beneficial to matching the size of the sealing ring with the size of the drill rod by adjusting the size of the sealing ring, so that the sealing connection with the drill rod is realized, and the sealing performance of the well sealing device is improved.

Preferably, as shown in fig. 3, the mounting groove 41 has a semicircular groove-like structure with an "i" shaped longitudinal section and adapted to be connected with the clamping groove 33, and the mounting groove 41 is connected with the baffle 31.

The beneficial effects of adopting the preferable scheme are as follows: the mounting groove is favorable for fixedly connecting the mounting groove with the baffle plate, so that the sealing ring and the drill rod can be matched and detached to be connected, and the suitability of the well sealing device is improved.

Preferably, as shown in fig. 1 to 3, the connection holes 44 are provided on the baffle plate 31, the mounting groove 41 and the sealing ring 42, and the connection bolts 45 pass through the mounting groove 41, the sealing ring 42 and the connection holes 44 on the baffle plate 31 in sequence, and fix the mounting groove 41 on the baffle plate 31 by cooperating with corresponding nuts.

The beneficial effects of adopting the preferable scheme are as follows: the connecting bolts are favorable for fixedly connecting the mounting grooves with the baffle threads and matching with the connecting holes on the sealing rings, so that the sealing rings with different sizes can be replaced, and the sealing rings are in adaptive sealing connection with the drill rods with different sizes.

Preferably, the sealing ring 42 is connected with the outer wall of the drill rod 2 in a sealing way through the sealing gasket 43.

The following description is needed: depending on the dimensions of the drill rod 2, the sealing ring 42 may be chosen to be of different dimensions adapted thereto.

The beneficial effects of adopting the preferable scheme are as follows: the sealing ring is favorable to the sealing connection of cooperation sealing gasket realization and drilling rod on the one hand, and on the other hand is favorable to improving the suitability of whole well sealing device through detachable connection.

The well sealing device in the application can solve the difficult problems of sealing the orifice in the construction of waterproof water control well drilling and geothermal well drilling of large-caliber coal mines and the like, avoid frequently allocating drilling tool combinations, reduce accidents in the well in a certain range, shorten the construction period, save the cost, ensure the well drilling quality, and reduce the disassembly time of the common well sealing device and the condition that the common well sealing device cannot be used under special conditions.

By inserting the sleeve connecting mechanism 5 into the well, the electric push rod 32 operates to push the baffle 31 to slide on the chassis 1, the sealing ring 42 is propped against the drill rod 2 to seal the well when the baffle 31 is closed, and the wellhead is opened when the baffle 31 is opened, so that compared with the prior art, the problem of blocking the wellhead is avoided, and the subsequent drilling operation is facilitated;

the sealing ring 42 is fixed in the clamping groove 33 through the connecting bolt 45, so that the device can be prevented from falling, can be detached and replaced simultaneously, is suitable for drilling rod 2 sealing operation of different diameters by replacing the sealing ring 42 matched with the drilling rod 2, and can be detached from the well after the drilling operation is completed.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations 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 device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," 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. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited 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 formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (8)

1. A detachable zone treatment wellhead well sealing device, comprising: chassis (1), drilling rod (2), two seal mechanism (3), two adjustable sealing mechanism (4) and sleeve pipe coupling mechanism (5), two seal mechanism (3) symmetry, and movably set up chassis (1) top surface, sleeve pipe coupling mechanism (5) set up chassis (1) bottom surface, drilling rod (2) run through from top to bottom seal mechanism (3), chassis (1) with sleeve pipe coupling mechanism (5), two adjustable sealing mechanism (4) one-to-one with two seal mechanism (3) are close to drilling rod (2) one end is connected, two adjustable sealing mechanism (4) form sealed sleeve joint in annular structure on drilling rod (2) lateral wall.

2. The detachable zone treatment wellhead sealing device according to claim 1, characterized in that an opening (11) is arranged in the middle of the chassis (1), and the opening (11) is a through hole penetrated by the drill rod (2).

3. A detachable zone remediation wellhead sealing device according to claim 1, characterised in that the sealing mechanism (3) comprises: baffle (31), electric putter (32) and draw-in groove (33), draw-in groove (33) are for setting up baffle (31) are close to semi-circular structure on drilling rod (2) one end lateral wall, two draw-in groove (33) make up into detachable circular through-hole, electric putter (32) with baffle (31) are kept away from draw-in groove (31) one end lateral wall is connected.

4. A detachable zone treatment wellhead sealing device according to claim 3, characterized in that the baffle (31) is of a plate-shaped structure slidably arranged at the top end of the chassis (1), the electric push rod (32) is mounted on the side wall of the chassis (1), and the driving end of the electric push rod (32) is connected with the baffle (31).

5. A detachable zone remediation wellhead sealing device according to claim 3 characterised in that the adjustable sealing mechanism (4) comprises: mounting groove (41), sealing ring (42), sealed pad (43), connecting hole (44) and connecting bolt (45), sealing ring (42) are for the embedding install semicircular annular structure in mounting groove (41), sealed pad (43) are installed on sealing ring (42) inner wall, connecting bolt (45) with connecting hole (44) threaded connection.

6. The detachable zone treatment wellhead sealing device according to claim 5, characterized in that the mounting groove (41) is of a semicircular groove-shaped structure with a longitudinal section of an 'I' -shape and is connected with the clamping groove (33) in an adapting manner, and the mounting groove (41) is connected with the baffle plate (31).

7. The detachable zone remediation wellhead sealing device of claim 5, wherein the connection holes (44) are formed in the baffle plate (31), the mounting groove (41) and the sealing ring (42), and the connection bolts (45) pass through the mounting groove (41), the sealing ring (42) and the connection holes (44) in the baffle plate (31) in sequence, and are matched with corresponding nuts to fix the mounting groove (41) on the baffle plate (31).

8. The detachable zone remediation wellhead sealing device of claim 5, wherein the sealing ring (42) is sealingly connected to the outer wall of the drill pipe (2) via the sealing gasket (43).