A sealed soft tube pull injection device and method

Abstract

This invention discloses a sealed hose traction injection device and method. The device includes: a housing with an opening at its upper end and a cover at the opening; an inlet mechanism disposed on one side wall of the housing; a flange joint disposed on the other side wall of the housing; a lower base disposed on the bottom wall of the housing; an upper base slidably disposed directly above the lower base; a pressing mechanism disposed on the cover and extending into the housing to abut against the upper base; two sets of traction transmission mechanisms respectively disposed on the lower base and the upper base, forming a hose channel for defining the hose between the two sets of traction transmission mechanisms; and a drive mechanism connected to the traction transmission mechanism disposed on the lower base. The beneficial effects of this invention are: it can achieve a sealed sleeve annulus by connecting to a wing valve through the flange joint, and it can also traction and inject the hose into the wing valve through the traction transmission mechanism.

Description

Technical Field

[0001] This invention relates to the field of oil and gas well workover technology, and in particular to a sealed hose traction injection device. Background Technology

[0002] In the treatment of pressurized, stationary tubing in the casing annulus, a flexible hose needs to be lowered into a specific location in the well via a wing valve to inject chemicals. Existing wellhead wing valves suffer from limitations such as limited space, inability to arrange thrust and directional power delivery components in parallel, difficulty in effectively sealing the casing annulus, inability to adequately isolate wellbore pressure, and inability to achieve fully sealed channel construction and wellhead space optimization.

[0003] Therefore, there is an urgent need for a sealed traction device that integrates directional traction, anti-torsion adjustment, and sealing protection to solve the existing problems. Summary of the Invention

[0004] The purpose of this invention is to provide a sealed hose traction injection device, which has a flange joint on one side of the housing that can be connected to a wing valve to achieve annular sealing of the sleeve.

[0005] Another objective of this invention is to provide a sealed hose traction injection device, which is equipped with a traction transmission mechanism that can traction inject hoses into a wing valve.

[0006] Another objective of this invention is to provide a sealed hose traction injection method, which can be connected to a wing valve through a flange joint to achieve a sealed sleeve annulus, and can also be used to traction and inject the hose into the wing valve through a traction transmission mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution, including: The box has an opening at its upper end, and a lid is provided at the opening. An inlet mechanism is provided on one side wall of the housing for allowing a hose to enter the housing; A flange joint is provided on the side wall of the other side of the housing. The flange joint is used to connect with the wellhead wing valve so that the hose can be inserted into the wellhead wing valve. The lower base is mounted on the bottom wall of the housing; An upper base is slidably disposed directly above the lower base; A pressing mechanism is provided on the box cover and extends into the box body to abut against the upper base; Two sets of traction transmission mechanisms are respectively mounted on the lower base and the upper base, forming a hose channel between the two sets of traction transmission mechanisms to define the hose; The drive mechanism, which is connected to the traction transmission mechanism mounted on the lower base, is used to output rotational power and drive the traction transmission mechanism to transmit power.

[0008] Preferably, the lower base is a U-shaped groove and the upper base is an inverted U-shaped groove; multiple optical axes are vertically and evenly distributed on both sides of the lower base; the upper and lower parts of each optical axis are slidably connected to the upper and lower bases respectively through optical axis seats; a spring is sleeved on the outer periphery of each optical axis, and the two ends of the spring abut against the optical axis seat respectively.

[0009] Preferably, the plurality of optical axes consists of four axes.

[0010] Preferably, the pressing mechanism includes: A through hole is provided through the box cover; A plug is provided on the lower end face of the box cover and is located directly below the through hole; a downwardly extending tube is provided at the center of the plug, and an internal thread is provided on the inner wall of the tube; An adjusting shaft passes sequentially through the through hole and the tube column, and an external thread adapted to the internal thread is provided on the outer circumference of the adjusting shaft; the lower end of the adjusting shaft abuts against the upper base. A handwheel, located at the upper end of the adjusting shaft, is used to drive the adjusting shaft to rotate.

[0011] Preferably, there are two through holes, which are mirror images of each other on the left and right sides of the box cover; each through hole is provided with a plug, an adjusting shaft and a handwheel.

[0012] Preferably, the traction transmission mechanism includes: Multiple rollers are rotatably mounted on the side wall of the lower or upper base via a first roller at both ends.

[0013] Preferably, it also includes: Multiple first gears are respectively mounted on first rollers located on the lower base; Multiple second gears are rotatably mounted on the lower base via second rollers and spaced apart from the first gears, with each second gear meshing with an adjacent first gear. A rotary motor is located at the front of the housing, and the output shaft of the rotary motor passes through the housing and is connected to any of the first rollers.

[0014] Preferably, a plurality of roller mounting holes are provided on the side walls of the upper base and the lower base, and bearings are provided in the roller mounting holes to provide rolling support for the first roller and the second roller.

[0015] Preferably, the importing mechanism includes: An opening is provided on the side wall of one side of the housing and is opposite to the flange joint; A sealing seat is disposed at the opening; a first cylindrical body is provided at the center of the sealing seat, the first cylindrical body being adapted to the inner circumference of the opening; a first peripheral edge extending outward is provided on the outer circumference of the middle part of the first cylindrical body, the first peripheral edge being used to abut against the inner wall of the box; an O-ring groove is provided on the front end face of the first peripheral edge, an O-ring is provided in the O-ring groove; a second peripheral edge extending inward is provided at the end of the first cylindrical body, the inner circumference of the second peripheral edge being adapted to the outer circumference of the hose; A sealing ring is fitted around the outer periphery of the hose, and the outer periphery of the sealing ring is adapted to the inner periphery of the first cylindrical body. A sealing ring is provided between the sealing ring and the second periphery. The inlet guide sleeve has a second cylindrical body, the inner periphery of which is adapted to the outer periphery of the first cylindrical body. A third periphery extending inward is provided at the front end of the second cylindrical body. The inner periphery of the third periphery is adapted to the outer periphery of the hose, and the third periphery abuts against the front end of the sealing ring.

[0016] A sealed hose traction injection method, using any of the sealed hose traction injection devices described above, characterized by comprising the following steps: S1. Adjust the distance between the upper and lower bases using the pressing mechanism to fit the hose size, and connect the flange joint to the wellhead wing valve; S2. The hose is led out from the winding winch and guided into the housing through the guiding mechanism. The drive mechanism is started to drive the traction transmission mechanism to rotate, and the traction hose enters the annulus of the shaft through the flange joint.

[0017] The beneficial effects of this invention are: it can be connected to the wing valve through a flange joint to achieve a sealing sleeve annulus, and it can also be used to pull the hose into the wing valve through a traction transmission mechanism. Attached Figure Description

[0018] Figure 1 This is a perspective view of a sealed hose traction injection device according to the present invention; Figure 2 This is a top view of a sealed hose traction injection device according to the present invention; Figure 3 for Figure 2 AA section view; Figure 4 This is a perspective view of a sealed hose traction injection device according to the present invention (after removing the housing and cover); Figure 5 A cross-sectional view of the traction transmission mechanism and the drive mechanism; Figure 6 for Figure 3 Enlarged view at point B. Detailed Implementation

[0019] The invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0020] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0021] like Figure 1-6 As shown, a sealed hose traction injection device 1 of the present invention includes: The box body 110 has an opening at its upper end, and a box cover 111 is provided at the opening; An inlet mechanism 120 is provided on one side wall of the housing 110 for allowing the hose 2 to enter the housing 110. A flange connector 130 is provided on the side wall of the other side of the housing 110. The flange connector 130 is used to connect with the wellhead wing valve so that the hose can be inserted into the wellhead wing valve. The lower base 140 is mounted on the bottom wall of the housing 110; The upper base 150 is slidably disposed directly above the lower base 140; A pressing mechanism 160 is disposed on the cover 110 and extends into the box body 110 to abut against the upper base 150; Two sets of traction transmission mechanisms 170 are respectively disposed on the lower base 140 and the upper base 150, forming a hose channel for defining the hose 2 between the two sets of traction transmission mechanisms 170. The drive mechanism 180 is connected to the traction transmission mechanism 170 mounted on the lower base 140 and is used to output rotational power to drive the traction transmission mechanism 170.

[0022] In another embodiment, the lower base 140 is a U-shaped groove, and the upper base 150 is an inverted U-shaped groove; multiple optical axes 151 are vertically and evenly distributed on both sides of the lower base 140; the upper and lower parts of each optical axis 151 are slidably connected to the upper base 150 and the lower base 140 respectively through optical axis seats 152; a spring 153 is sleeved on the outer periphery of each optical axis 152, and the two ends of the spring 153 abut against the optical axis seat 152 respectively.

[0023] In another embodiment, the plurality of optical axes 151 consists of four axes.

[0024] In another embodiment, the pressing mechanism 160 includes: A through hole is provided through the box cover; A plug 161 is disposed on the lower end face of the box cover 111 and located directly below the through hole; a downwardly extending tube column is provided at the center of the plug 161, and an internal thread is provided on the inner wall of the tube column; An adjusting shaft 162 passes through the through hole and the tube in sequence, and an external thread adapted to the internal thread is provided on the outer periphery of the adjusting shaft 162; the lower end of the adjusting shaft 162 abuts against the upper base 150. A handwheel 163 is located at the upper end of the adjusting shaft 162 and is used to drive the adjusting shaft 162 to rotate.

[0025] In another embodiment, there are two through holes, which are mirror images of the left and right sides of the cover 110, respectively; each through hole is provided with a plug 161, an adjusting shaft 162 and a handwheel 163.

[0026] In another embodiment, the traction transmission mechanism 170 includes: Multiple rollers 171 are rotatably mounted on the side wall of the lower base 140 or the upper base 150 via first rollers 172 at both ends.

[0027] In another embodiment, the drive mechanism 180 includes: Multiple first gears 181 are respectively disposed on first rollers 172 located on the lower base 140; A plurality of second gears 182 are rotatably mounted on the lower base 140 via second rollers 183 and spaced apart from the first gears 181. The second gears 182 mesh with the adjacent first gears 181. A rotary motor 183 is disposed in front of the housing 110, and the output shaft of the rotary motor 183 passes through the housing 110 and is connected to any of the first rollers 172.

[0028] In another embodiment, a plurality of roller mounting holes are provided on the side walls of the upper base 150 and the lower base 140, and a bearing 184 is provided in the roller mounting holes to provide rolling support for the first roller and the second roller.

[0029] In another embodiment, the import mechanism 120 includes: An opening is provided on one side wall of the housing 110 and opposite to the flange joint; A sealing seat 121 is disposed at the opening; a first cylindrical body is provided at the center of the sealing seat 121, the first cylindrical body being adapted to the inner circumference of the opening; a first peripheral edge extending outward is provided on the outer circumference of the middle part of the first cylindrical body, the first peripheral edge being used to abut against the inner wall of the box; an O-ring groove is provided on the front end face of the first peripheral edge, and an O-ring 121a is provided in the O-ring groove; a second peripheral edge 121b extending inward is provided at the end of the first cylindrical body, the inner circumference of the second peripheral edge 121b being adapted to the outer circumference of the hose; A sealing ring 122 is sleeved on the outer periphery of the hose 2. The outer periphery of the sealing ring 122 is adapted to the inner periphery of the first cylindrical body. A sealing ring 123 is provided between the sealing ring 122 and the second periphery 122. The inlet guide sleeve 124 has a second cylindrical body, the inner periphery of which is adapted to the outer periphery of the first cylindrical body, and a third periphery extending inward at the front end of the second cylindrical body, the inner periphery of which is adapted to the outer periphery of the hose, and the third periphery abuts against the front end of the sealing ring.

[0030] A sealed hose traction injection method, using any of the sealed hose traction injection devices described above, includes the following steps: S1. Adjust the distance between the upper base 150 and the lower base 140 through the pressing mechanism 160 to adapt it to the size of the hose 2, and connect the flange joint 130 to the wellhead wing valve. S2. The hose 2 is led out from the winding winch and guided into the housing 110 through the guiding mechanism 120. The drive mechanism 180 is started to drive the traction transmission mechanism 170 to rotate, and the traction hose enters the shaft annulus through the flange joint 120.

[0031] In summary, the present invention provides a sealed hose traction injection device 1, which can be connected to a wing valve through a flange joint to achieve a sealed sleeve annulus, and can also traction and inject the hose into the wing valve through a traction transmission mechanism.

[0032] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A sealed hose traction injection device, characterized in that, include: The box has an opening at its upper end, and a lid is provided at the opening. An inlet mechanism is provided on one side wall of the housing for allowing a hose to enter the housing; A flange joint is provided on the side wall of the other side of the housing. The flange joint is used to connect with the wellhead wing valve so that the hose can be inserted into the wellhead wing valve. The lower base is mounted on the bottom wall of the housing; An upper base is slidably disposed directly above the lower base; A pressing mechanism is provided on the box cover and extends into the box body to abut against the upper base; Two sets of traction transmission mechanisms are respectively mounted on the lower base and the upper base, forming a hose channel between the two sets of traction transmission mechanisms to define the hose; The drive mechanism, which is connected to the traction transmission mechanism mounted on the lower base, is used to output rotational power and drive the traction transmission mechanism to transmit power.

2. The sealed hose traction injection device according to claim 1, characterized in that: The lower base is a U-shaped groove, and the upper base is an inverted U-shaped groove; multiple optical axes are vertically and evenly distributed on both sides of the lower base; the upper and lower parts of each optical axis are slidably connected to the upper and lower bases respectively through optical axis seats; a spring is sleeved on the outer periphery of each optical axis, and the two ends of the spring abut against the optical axis seats respectively.

3. The sealed hose traction injection device according to claim 2, characterized in that: The number of optical axes is four.

4. The sealed hose traction injection device according to claim 2, characterized in that, The pressing mechanism includes: A through hole is provided through the box cover; A plug is provided on the lower end face of the box cover and is located directly below the through hole; a downwardly extending tube is provided at the center of the plug, and an internal thread is provided on the inner wall of the tube; An adjusting shaft passes sequentially through the through hole and the tube column, and an external thread adapted to the internal thread is provided on the outer circumference of the adjusting shaft; the lower end of the adjusting shaft abuts against the upper base. A handwheel, located at the upper end of the adjusting shaft, is used to drive the adjusting shaft to rotate.

5. The sealed hose traction injection device according to claim 4, characterized in that: There are two through holes, which are mirror images of the left and right sides of the box cover, respectively; each through hole is provided with a plug, an adjusting shaft and a handwheel.

6. The sealed hose traction injection device according to claim 1, characterized in that, The traction transmission mechanism includes: Multiple rollers are rotatably mounted on the side wall of the lower or upper base via a first roller at both ends.

7. The sealed hose traction injection device according to claim 6, characterized in that, Also includes: Multiple first gears are respectively mounted on first rollers located on the lower base; Multiple second gears are rotatably mounted on the lower base via second rollers and spaced apart from the first gears, with each second gear meshing with an adjacent first gear. A rotary motor is located at the front of the housing, and the output shaft of the rotary motor passes through the housing and is connected to any of the first rollers.

8. The sealed hose traction injection device according to claim 6, characterized in that: Multiple roller mounting holes are provided on the side walls of the upper and lower bases respectively, and bearings are provided in the roller mounting holes to provide rolling support for the first and second rollers.

9. The sealed hose traction injection device according to claim 6, characterized in that, The importing mechanism includes: An opening is provided on the side wall of one side of the housing and is opposite to the flange joint; A sealing seat is disposed at the opening; a first cylindrical body is provided at the center of the sealing seat, the first cylindrical body being adapted to the inner circumference of the opening; a first peripheral edge extending outward is provided on the outer circumference of the middle part of the first cylindrical body, the first peripheral edge being used to abut against the inner wall of the box; an O-ring groove is provided on the front end face of the first peripheral edge, an O-ring is provided in the O-ring groove; a second peripheral edge extending inward is provided at the end of the first cylindrical body, the inner circumference of the second peripheral edge being adapted to the outer circumference of the hose; A sealing ring is fitted around the outer periphery of the hose, and the outer periphery of the sealing ring is adapted to the inner periphery of the first cylindrical body. A sealing ring is provided between the sealing ring and the second periphery. The inlet guide sleeve has a second cylindrical body, the inner periphery of which is adapted to the outer periphery of the first cylindrical body. A third periphery extending inward is provided at the front end of the second cylindrical body. The inner periphery of the third periphery is adapted to the outer periphery of the hose, and the third periphery abuts against the front end of the sealing ring.

10. A sealed hose traction injection method, using the sealed hose traction injection device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Adjust the distance between the upper and lower bases using the pressing mechanism to fit the hose size, and connect the flange joint to the wellhead wing valve; S2. The hose is led out from the winding winch and guided into the housing through the guiding mechanism. The drive mechanism is started to drive the traction transmission mechanism to rotate, and the traction hose enters the annulus of the shaft through the flange joint.

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