CN215632874U

CN215632874U - High-efficient fracturing well head device

Info

Publication number: CN215632874U
Application number: CN202121970324.XU
Authority: CN
Inventors: 李益民; 吴炜; 梁萍
Original assignee: Jiangsu Yima Machinery Co ltd
Current assignee: Jiangsu Yima Machinery Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-25
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a high-efficiency fracturing wellhead device which comprises a fracturing wellhead body, wherein the fracturing wellhead body is composed of a sleeve and an oil pipe, the oil pipe and the sleeve are connected through a mounting mechanism capable of being rapidly disassembled and connected, the bottom end of the sleeve is provided with a limiting mechanism, the sleeve is of a large four-way structure, the outer side of the sleeve is connected with oil port conveying pipelines, the center of each oil port conveying pipeline is provided with a control valve, and one side of each control valve is connected with a rotary table capable of controlling the opening and closing of the control valve. According to the utility model, the phenomenon that the existing device has overlarge resistance between the bolt and two groups of sealing blocks and cannot be disassembled due to the fact that the sealing blocks are deviated due to pressure leakage can be avoided through the arranged mounting mechanism, the device can be rapidly mounted or dismounted through the mounting mechanism, and even if the pressure leakage occurs after the mounting is finished, the bolt only has a phenomenon of small resistance between the bolt and the second sealing block.

Description

High-efficient fracturing well head device

Technical Field

The utility model relates to the field of oil well operation, in particular to a high-efficiency fracturing wellhead device.

Background

In the process of oil field development, in order to increase the yield of an oil well, a fracturing process technology measure is often adopted, namely, a high-pressure fracturing truck and a high-pressure manifold facility are adopted, and fracturing sand is pressed into a stratum through a wellhead device and a high-pressure fracturing pipe column.

The existing high-efficiency fracturing wellhead device is usually connected through bolts, so that the situation that pressure leakage caused by loosening of flanges due to air leakage of inlet and outlet pipelines is difficult to maintain under the condition that the bolts cannot be disassembled is caused, and large machinery is needed to limit and control the distance between an oil pipeline and a wellhead during working, so that the high-efficiency fracturing wellhead device is provided.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a highly efficient fracturing wellhead to solve the problems set forth in the background above.

In order to achieve the purpose, the utility model provides the following technical scheme:

high-efficient fracturing well head device, including fracturing well head body, fracturing well head body has sleeve pipe and oil pipe to constitute, just oil pipe is connected through quick disconnect's installation mechanism with the sleeve pipe, sheathed tube bottom is provided with stop gear.

In a further embodiment, the sleeve is of a large four-way structure, the outer side of the sleeve is connected with oil port conveying pipelines, the centers of the oil port conveying pipelines are provided with control valves, one side of each control valve is connected with a turntable capable of controlling the opening and closing of the control valve, and oil flow can be controlled by controlling the opening and closing of the control valves through the turntables.

In a further embodiment, installation mechanism includes the first sealed piece that sets up at the hydraulic fluid port transport pipe way top face with bushing, just the outside of first sealed piece is connected with the fixed plate, and is two sets of be connected with the dwang through the pivot between two liang of fixed plate, the fixed block has been cup jointed to the outer wall of dwang, the top of fixed block is connected with the pressure strip, be provided with the sealed piece of second between pressure strip bottom end face and the first sealed piece top face, just there is the thread groove threaded connection that the tapping was seted up pressure strip and the sealed piece of second inside to have the bolt, can be quick dismantle or install oil pipe.

In a further embodiment, the pressure strip is provided with four groups, just the pressure strip is the integral structure with the fixed block, the pressure strip passes through the dwang and constitutes revolution mechanic with first sealed piece, can avoid taking place pressure leakage and cause the too big phenomenon that can't dismantle of resistance between bolt and the sealed piece.

In a further embodiment, the limiting mechanism comprises a base arranged on the bottom surface of the sleeve, a through hole is formed in the base and connected with a threaded rod, the bottom surface of the base is connected with a threaded sleeve in threaded connection with the threaded rod, the bottom end of the threaded rod is connected with the inner bottom end of the positioning seat through a rotating shaft, and an oil pipeline is arranged at the bottom end of the base and can control the distance between the oil pipeline and the oil port.

In a further embodiment, the threaded rods are arranged in a plurality of groups in an equidistant surrounding mode, the threaded rods are movably connected with the positioning seats, and the device can be fixed at the oil port.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the phenomenon that the existing device has overlarge resistance between the bolt and two groups of sealing blocks and cannot be disassembled due to the fact that the sealing blocks are deviated due to pressure leakage can be avoided through the arranged mounting mechanism, the device can be rapidly mounted or dismounted through the mounting mechanism, and even if the pressure leakage occurs after the mounting is finished, the bolt only has a phenomenon of small resistance between the bolt and the second sealing block.

2. According to the utility model, the limiting mechanism can be used for replacing large machinery to barb the device when the device is fixed, so that the phenomenon of high cost is caused, and the height of the device can be freely controlled to reach the optimal connection position of the oil pipeline and the oil string in the oil well.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic structural diagram of the mounting mechanism of the present invention.

In the figure: 1. fracturing a wellhead body; 2. a sleeve; 3. an oil pipe; 4. an installation mechanism; 401. a first seal block; 402. a fixing plate; 403. rotating the rod; 404. a fixed block; 405. a compression plate; 406. a second seal block; 407. a bolt; 5. a limiting mechanism; 501. a base; 502. a threaded rod; 503. a threaded sleeve; 504. positioning seats; 505. an oil conduit; 6. an oil port transport pipeline; 7. a control valve; 8. a turntable.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the utility model, the high-efficiency fracturing wellhead device comprises a fracturing wellhead body 1, wherein the fracturing wellhead body 1 is composed of a casing 2 and an oil pipe 3, the oil pipe 3 and the casing 2 are connected through a mounting mechanism 4 capable of being quickly disassembled and assembled, a limiting mechanism 5 is arranged at the bottom end of the casing 2, the casing 2 is of a large four-way structure, oil port conveying pipelines 6 are connected to the outer sides of the casing 2, a control valve 7 is arranged at the center of each oil port conveying pipeline 6, a rotary disc 8 capable of controlling the control valve 7 to be opened and closed is connected to one side of each control valve 7, and the control valve 7 is controlled to be opened and closed to determine an oil flow path through the rotary disc 8 when the fracturing wellhead body starts to work after being installed.

Example 1

Referring to fig. 1-3, the mounting mechanism 4 includes a first sealing block 401 disposed on the top end surface of the oil port transport pipeline 6 connected to the casing 2, and the outer side of the first sealing block 401 is connected with a fixing plate 402, two sets of fixing plates 402 are connected with a rotating rod 403 through a rotating shaft, the outer wall of the rotating rod 403 is sleeved with a fixing block 404, the top end of the fixing block 404 is connected with a pressing plate 405, a second sealing block 406 is disposed between the bottom end surface of the pressing plate 405 and the top end surface of the first sealing block 401, and the pressing plate 405 and the second sealing block 406 are internally provided with a screw thread groove and a screw thread connected with a bolt 407, the pressing plate 405 is provided with four sets, and the pressing plate 405 and the fixing block 404 are integrated, the pressing plate 405 and the first sealing block 401 form a rotating structure through the rotating rod 403, when the device is to be mounted, the oil port transport pipeline 6 is respectively inserted into the first sealing block 401 and the second sealing block 406, then, the rotating rod 403 is rotated to attach the pressing plate 405 to the top end of the second sealing block 406, and then the pressing plate is fixed by the bolt 407, so that an oil flow channel can be formed.

Example 2

Referring to fig. 1-3, the difference from embodiment 1 is: the limiting mechanism 5 comprises a base 501 arranged on the bottom end face of the casing 2, a through hole is formed in the base 501 and connected with a threaded rod 502, the bottom end face of the base 501 is connected with a threaded sleeve 503 in threaded connection with the threaded rod 502, the bottom end of the threaded rod 502 is connected with the bottom end in a positioning seat 504 through a rotating shaft, an oil pipeline 505 is arranged at the bottom end of the base 501, a plurality of groups are arranged around the threaded rod 502 at equal intervals, the threaded rod 502 is movably connected with the positioning seat 504, when the device is used for fracturing, the positioning seat 504 is inserted into a positioning hole near an oil well opening, then the threaded rod 502 is connected with the threaded sleeve 503 through rotating the threaded rod 502, the threaded rod 502 moves downwards, the device is integrally lifted to be in a proper position, and the oil pipeline 505 is connected with an oil pipe column in the oil well opening.

The working principle of the utility model is as follows: when the device is used, firstly, when the device needs to be installed, the oil port conveying pipeline 6 is respectively inserted into the first sealing block 401 and the second sealing block 406, then the compression plate 405 is attached to the top end of the second sealing block 406 by rotating the rotating rod 403, then the device is fixed through the bolt 407, a petroleum flow channel can be formed, when the device performs fracturing work, the positioning seat 504 is inserted into a positioning hole near an oil well port, then the threaded rod 502 is connected with the threaded sleeve 503 through a rotating thread, the threaded rod 502 moves downwards, the whole device is lifted to a proper position, the control oil pipeline 505 is connected with a tubing string in the oil well port, and when the device starts to work after installation, the control valve 7 is controlled through the rotary disc 8 to open and close to determine a petroleum flow path.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. High-efficient fracturing well head device, including fracturing well head body (1), its characterized in that: fracturing well head body (1) has sleeve pipe (2) and oil pipe (3) to constitute, just oil pipe (3) are connected through quick disconnect's installation mechanism (4) with sleeve pipe (2), the bottom of sleeve pipe (2) is provided with stop gear (5).

2. The high efficiency fracturing wellhead assembly of claim 1, wherein: the oil port control device is characterized in that the sleeve (2) is of a large four-way structure, the outer side of the sleeve (2) is connected with an oil port conveying pipeline (6), a control valve (7) is arranged at the center of the oil port conveying pipeline (6), and one side of the control valve (7) is connected with a rotary table (8) capable of controlling the control valve (7) to be opened and closed.

3. The high efficiency fracturing wellhead assembly of claim 1, wherein: installation mechanism (4) include first sealed piece (401) that sets up at hydraulic fluid port transport pipe way (6) top face be connected with sleeve pipe (2), just the outside of first sealed piece (401) is connected with fixed plate (402), and is two sets of fixed plate (402) are connected with dwang (403) through the pivot between two liang, fixed block (404) have been cup jointed to the outer wall of dwang (403), the top of fixed block (404) is connected with pressure strip (405), be provided with second sealed piece (406) between pressure strip (405) bottom face and first sealed piece (401) top face, just pressure strip (405) and second sealed piece (406) inside have thread groove threaded connection bolt (407) that the tapping was seted up.

4. The high efficiency fracturing wellhead assembly of claim 3, wherein: the pressure strip (405) is provided with four groups, just pressure strip (405) and fixed block (404) be the integral structure, pressure strip (405) constitute revolution mechanic through dwang (403) and first sealed piece (401).

5. The high efficiency fracturing wellhead assembly of claim 1, wherein: stop gear (5) include base (501) of setting at sleeve pipe (2) bottom face, the through-hole has been seted up to the inside of base (501) and has been connected with threaded rod (502), the bottom face of base (501) is connected with threaded sleeve (503) with threaded rod (502) threaded connection, the bottom is connected the bottom in positioning seat (504) through the pivot in the bottom of threaded rod (502), the bottom of base (501) is provided with oil pipe way (505).

6. The high efficiency fracturing wellhead assembly of claim 5, wherein: threaded rod (502) equidistance is encircleed and is provided with a plurality of groups, threaded rod (502) and positioning seat (504) are swing joint.