Packing installation tool

Abstract

The invention relates to the technical field of oil extraction, in particular to a packing installation tool, the packing installation tool is used for installing packing in a packing cabin, a polish rod is arranged in the packing cabin, the packing installation tool comprises a clamping assembly, a connecting assembly and a connecting assembly, the clamping assembly is used for clamping the polish rod, and the axis of the clamped polish rod at least partially coincides with the clamping center line of the clamping assembly; the supporting nut is arranged on the clamping assembly; the supporting screw rod is arranged in the supporting nut in a penetrating manner; the adjusting nut is arranged at the end part of the supporting screw rod; the adjusting screw rod is arranged on the adjusting nut in a penetrating mode, the axis of the adjusting screw rod is perpendicular to the clamping center line of the clamping assembly, and the end of the adjusting screw rod is used for abutting against the outer wall of the disc root cabin; and under the condition that the end part of the adjusting screw rod abuts against the outer wall of the packing cabin, the adjusting screw rod is rotated to enable the adjusting nut, the supporting screw rod, the supporting nut and the clamping assembly to drive the polish rod to move along the adjusting screw rod, so that the polish rod is corrected, and a new packing is convenient to install.

Description

Technical Field

[0001] The present application relates to the technical field of oil production, and particularly relates to a packing installation tool. Background Art

[0002] At present, in the field of oil production in oilfields, the pumping unit is an important lifting device on the ground. In order to prevent oil leakage between the polished rod and the wellhead, a packing box is installed on the wellhead. However, due to the installation quality of the pumping unit and the structure of the packing box, the wellhead and the pony head are not aligned, resulting in eccentric wear of the polished rod. The gap between one side of the polished rod and the packing chamber is very small, and it is difficult to install a new packing.

[0003] Therefore, how to overcome the above technical defects has become a technical problem that needs to be solved urgently. Summary of the Invention

[0004] In view of this, the present application provides a packing installation tool.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] The present application provides a packing installation tool for installing a packing into a packing chamber, in which a polished rod is arranged. The packing installation tool includes: a clamping assembly for clamping the polished rod, and at least part of the axis of the clamped polished rod coincides with the clamping center line of the clamping assembly; a support nut arranged on the clamping assembly; a support screw passing through the support nut; an adjusting nut arranged at the end of the support screw; and an adjusting screw passing through the adjusting nut. The axis of the adjusting screw is perpendicular to the clamping center line of the clamping assembly, and the end of the adjusting screw is used to abut against the outer wall of the packing chamber. Wherein, when the end of the adjusting screw abuts against the outer wall of the packing chamber, rotating the adjusting screw can make the adjusting nut, the support screw, the support nut and the clamping assembly drive the polished rod to move along the adjusting screw to correct the polished rod.

[0007] The packing installation tool provided by the present application is used to add packing into the packing chamber. A polished rod is arranged in the packing chamber, and the polished rod is connected to the sucker rod and the wellhead device. The packing installation tool includes: a clamping assembly, a support nut, a support screw, an adjusting nut, and an adjusting screw. Specifically, the clamping assembly is used to clamp the polished rod, and the axis of the clamped polished rod coincides with at least part of the clamping center line of the clamping assembly, which is convenient for correcting the polished rod. A support nut and a support screw are arranged on the side of the clamping assembly. The support screw passes through the support nut, and the support screw is threadedly connected to the support nut. The adjusting nut is arranged at the end of the support screw. The adjusting screw passes through the adjusting nut, and the adjusting screw is threadedly connected to the adjusting nut. The axis of the adjusting screw is perpendicular to the clamping center line of the clamping assembly, and the end of the adjusting screw is used to abut against the outer wall of the packing chamber. When the end of the adjusting screw abuts against the outer wall of the packing chamber, rotating the adjusting screw can drive the adjusting nut, the support screw, the support nut and the clamping assembly to drive the polished rod to move along the adjusting screw, so as to correct the polished rod with the problem of eccentric wear, so that the polished rod can be centered with the packing chamber, which is convenient for the installation of the new packing.

[0008] At present, the pumping unit is an important lifting device on the ground. In order to prevent oil leakage between the polished rod and the wellhead, a packing box is installed on the wellhead. Due to the installation quality of the pumping unit and the structure of the packing box, there is a situation where the wellhead and the walking beam are not centered, resulting in eccentric wear of the polished rod, shortening the service life of the sealing packing, and the packing needs to be frequently replaced. Therefore, the operation of replacing the packing has become one of the important operation items for oil production workers. The conventional operation of replacing the packing is to sequentially remove the old packing piece by piece, and then install the new packing piece by piece. The operation speed is slow. When removing the old packing, since it is the worn packing, the gap between it and the polished rod and the packing chamber is large, so it is easy to remove. When installing the packing, since it is a new packing, the gap between it and the polished rod and the packing chamber is very small, and it is difficult to install. Moreover, as the degree of misalignment of the wellhead increases, the difficulty of installing the new packing will increase accordingly, resulting in an extension of the replacement operation time, affecting the production efficiency of the oil well, and seriously causing the oil well to stop production. At the same time, the labor intensity of the workers is increased.

[0009] In the present application, by setting the axis of the adjusting screw to be perpendicular to the clamping center line of the clamping assembly, the clamping assembly is used to clamp the polished rod with the problem of eccentric wear, and the end of the adjusting screw is abutted against the outer wall of the packing chamber. Rotating the adjusting screw can drive the adjusting nut, the support screw, the support nut and the clamping assembly to drive the polished rod to move along the adjusting screw, so as to correct the polished rod with the problem of eccentric wear, so that the polished rod is located at the center position of the packing chamber. After the position is aligned, the packing can be quickly installed into the packing chamber, thereby saving operation time, reducing the operation difficulty, and achieving the purpose of saving time and effort.

[0010] In addition, the packing installation tool in the above technical solution provided by the present application may further have the following additional technical features:

[0011] In some embodiments, optionally, the clamping assembly includes: a first clamping portion rotatably disposed on the support nut, the first clamping portion including a first fastening structure; a second clamping portion rotatably disposed on the support nut, the second clamping portion including a second fastening structure, the first fastening structure being fastened to the second fastening structure for clamping the polished rod.

[0012] In some embodiments, optionally, the clamping assembly further includes: a locking member connected to the first clamping portion and the second clamping portion, the locking member being used for locking the first clamping portion and the second clamping portion.

[0013] In some embodiments, optionally, the packing installation tool further includes: an abutting member disposed on the adjusting screw, the abutting member being located between the adjusting nut and the outer wall of the packing chamber, the adjusting screw being capable of rotating relative to the abutting member, and rotating the adjusting screw can make the abutting member abut against the outer wall of the packing chamber.

[0014] In some embodiments, optionally, the abutting member includes: an arc-shaped groove capable of fitting with the outer wall of the packing chamber.

[0015] In this embodiment, the abutting member includes an arc-shaped groove, the outer wall of the packing chamber is arc-shaped, the arc-shaped groove can fit with the outer wall of the packing chamber, and thus the outer wall of the packing chamber can be protected during the process of aligning the polished rod.

[0016] In some embodiments, optionally, the packing installation tool further includes: a connecting rod disposed on the support screw, located between the clamping assembly and the adjusting screw; a pressing assembly disposed on the connecting rod, the pressing assembly being capable of rotating relative to the connecting rod to press the packing into the packing chamber.

[0017] In some embodiments, optionally, the pressing assembly includes: a pressing rod, one end of the pressing rod being sleeved on the connecting rod, the pressing rod being capable of rotating relative to the connecting rod.

[0018] In some embodiments, optionally, the pressing assembly further includes: a first pressing block disposed on the pressing rod, the first pressing block including a first avoidance notch; a second pressing block connected to the first pressing block by a connecting rod, the second pressing block including a second avoidance notch, the second pressing block being located between the connecting rod and the adjusting screw.

[0019] In some embodiments, optionally, the packing installation tool further includes: a mounting hole disposed on the pressing rod; a connecting screw, one end of the connecting screw being disposed on the first pressing block, the other end of the connecting screw passing through the mounting hole; and a fastening nut disposed on the other end of the connecting screw, threadedly engaged with the connecting screw.

[0020] In some embodiments, optionally, the packing installation tool further includes: a spacer sleeve sleeved on the connecting rod and located between the pressing rod and the supporting screw; a locking nut threadedly connected to the connecting rod, with one end of the pressing rod located between the spacer sleeve and the locking nut, and the locking nut is used to limit the movement of the pressing assembly.

[0021] The technical solution provided by this application at least brings the following beneficial effects:

[0022] In this application, by setting the axis of the adjusting screw perpendicular to the clamping center line of the clamping assembly, using the clamping assembly to clamp the polished rod, abutting the end of the adjusting screw against the outer wall of the packing chamber, rotating the adjusting screw can make the adjusting nut, the supporting screw, the supporting nut and the clamping assembly drive the polished rod to move along the adjusting screw, so as to correct the polished rod with the problem of eccentric wear of the polished rod, make the polished rod located at the center position of the packing chamber. After the position is aligned, the pressing assembly can be used to quickly press multiple pieces of packing into the packing chamber, thus saving operation time, reducing the operation difficulty, and achieving the purpose of saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of the packing installation tool provided by the embodiment of this application.

[0026] Among them, Figure 1 The corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0027] 100 Packing installation tool, 110 Clamping assembly, 112 First clamping part, 114 Second clamping part, 116 First fastening structure, 118 Second fastening structure, 119 Locking component, 120 Supporting nut, 130 Supporting screw, 140 Adjusting nut, 150 Adjusting screw, 160 Abutting component, 162 Arc-shaped groove, 170 Connecting rod, 180 Pressing assembly, 182 Pressing rod, 184 First pressing block, 186 Second pressing block, 187 Connecting rod, 188 First avoiding notch, 189 Second avoiding notch, 190 Mounting hole, 192 Connecting screw, 194 Fastening nut, 196 Spacer sleeve, 198 Locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0029] The following will refer to Figure 1 , and will describe in detail the packing installation tool 100 provided in the embodiments of this application through specific embodiments and their application scenarios.

[0030] As Figure 1 shown, this application provides a packing installation tool 100. The packing installation tool 100 is used to install packing into a packing chamber. A polished rod is provided in the packing chamber. The packing installation tool 100 includes: a clamping assembly 110, which is used to clamp the polished rod, and the axis of the clamped polished rod coincides at least partially with the clamping center line of the clamping assembly 110; a support nut 120, which is provided on the clamping assembly 110; a support screw 130, which passes through the support nut 120; an adjusting nut 140, which is provided at the end of the support screw 130; an adjusting screw 150, which passes through the adjusting nut 140. The axis of the adjusting screw 150 is perpendicular to the clamping center line of the clamping assembly 110, and the end of the adjusting screw 150 is used to abut against the outer wall of the packing chamber. Wherein, when the end of the adjusting screw 150 abuts against the outer wall of the packing chamber, rotating the adjusting screw 150 can cause the adjusting nut 140, the support screw 130, the support nut 120, and the clamping assembly 110 to drive the polished rod to move along the adjusting screw 150 to correct the polished rod.

[0031] The packing installation tool 100 provided by the present application is used to add packing into the packing chamber. A polished rod is arranged in the packing chamber, and the polished rod is connected to the sucker rod and the wellhead device. The packing installation tool 100 includes: a clamping assembly 110, a support nut 120, a support screw 130, an adjusting nut 140, and an adjusting screw 150. Specifically, the clamping assembly 110 is used to clamp the polished rod, and the axis of the clamped polished rod coincides with at least part of the clamping center line of the clamping assembly 110, which is convenient for correcting the polished rod. A support nut 120 and a support screw 130 are arranged on the side of the clamping assembly 110. The support screw 130 passes through the support nut 120, and the support screw 130 is threadedly connected to the support nut 120. The adjusting nut 140 is arranged at the end of the support screw 130. The adjusting screw 150 passes through the adjusting nut 140, and the adjusting screw 150 is threadedly connected to the adjusting nut 140. The axis of the adjusting screw 150 is perpendicular to the clamping center line of the clamping assembly 110, and the end of the adjusting screw 150 is used to abut against the outer wall of the packing chamber. When the end of the adjusting screw 150 abuts against the outer wall of the packing chamber, rotating the adjusting screw 150 can drive the adjusting nut 140, the support screw 130, the support nut 120, and the clamping assembly 110 to drive the polished rod to move along the adjusting screw 150, so as to correct the polished rod with the problem of eccentric wear of the polished rod, make the polished rod aligned with the packing chamber, and facilitate the installation of the new packing.

[0032] At present, the pumping unit is an important lifting device on the ground. In order to prevent oil leakage between the polished rod and the wellhead, a packing box is installed on the wellhead. Due to the installation quality of the pumping unit and the structure of the packing box, the wellhead and the donkey head are not aligned, resulting in eccentric wear of the polished rod, shortening the service life of the sealing packing, and the packing needs to be replaced frequently. Therefore, the operation of replacing the packing has become one of the important operation items for oil production workers. The conventional operation of replacing the packing is to take out the old packing one by one in turn, and then install the new packing one by one in turn. The operation speed is slow. When taking out the old packing, since it is the worn packing, the gap between it and the polished rod and the packing chamber is large, and it is easy to take out. However, when installing the packing, since it is a new packing, the gap between it and the polished rod and the packing chamber is very small, and it is difficult to install. Moreover, as the degree of misalignment of the wellhead increases, the difficulty of installing the new packing will increase accordingly, resulting in an extension of the replacement operation time, affecting the production rate of the oil well, and seriously causing the oil well to stop production. At the same time, the labor intensity of workers is increased.

[0033] In this application, by setting the axis of the adjusting screw 150 perpendicular to the clamping center line of the clamping assembly 110, the clamping assembly 110 is used to clamp the polished rod with the problem of uneven wear. The end of the adjusting screw 150 is abutted against the outer wall of the stuffing box. Rotating the adjusting screw 150 can make the adjusting nut 140, the support screw 130, the support nut 120 and the clamping assembly 110 drive the polished rod to move along the adjusting screw 150, so as to correct the polished rod with the problem of uneven wear, make the polished rod located at the center position of the stuffing box. After the alignment, the packing can be quickly installed into the stuffing box, thus saving operation time and reducing operation difficulty, achieving the purpose of saving time and effort.

[0034] As Figure 1 shown, the dotted line pointed by arrow A represents the clamping center line of the clamping assembly 110, and the dotted line pointed by arrow B represents the axis of the adjusting screw 150.

[0035] In some embodiments, optionally, as Figure 1 shown, the clamping assembly 110 includes: a first clamping portion 112 rotatably disposed on the support nut 120, the first clamping portion 112 includes a first fastening structure 116; a second clamping portion 114 rotatably disposed on the support nut 120, the second clamping portion 114 includes a second fastening structure 118, and the first fastening structure 116 and the second fastening structure 118 are fastened together for clamping the polished rod.

[0036] In this embodiment, the clamping assembly 110 includes a first clamping portion 112 and a second clamping portion 114. Both the first clamping portion 112 and the second clamping portion 114 are disposed on the support nut 120. Both the first clamping portion 112 and the second clamping portion 114 can rotate relative to the support nut 120. The first clamping portion 112 and the second clamping portion 114 can expand outward or buckle inward. When the first clamping portion 112 and the second clamping portion 114 rotate outward, the clamping assembly 110 is in the expanded state, which is convenient for removing from the polished rod. When the first clamping portion 112 and the second clamping portion 114 rotate inward, the first fastening structure 116 and the second fastening structure 118 are fastened together, and the clamping assembly 110 is in the buckled state to clamp the polished rod, which is convenient for correcting the unevenly worn polished rod.

[0037] In some embodiments, optionally, as Figure 1 shown, the clamping assembly 110 further includes: a locking member 119 connected to the first clamping portion 112 and the second clamping portion 114, and the locking member 119 is used to lock the first clamping portion 112 and the second clamping portion 114.

[0038] In this embodiment, the clamping assembly 110 further includes a locking member 119. The locking member 119 is connected to the first clamping portion 112 and the second clamping portion 114. The locking member 119 is used to lock the first clamping portion 112 and the second clamping portion 114 when the clamping assembly 110 is in the latched state, so as to avoid danger during the process of correcting the eccentrically worn polished rod and ensure the personal safety of the operator.

[0039] In actual application, the locking member 119 is a locking bolt. Threaded internal holes matching the locking bolt are provided on the first clamping portion 112 and the second clamping portion 114. When correcting the polished rod, the first clamping portion 112 and the second clamping portion 114 are locked by the locking bolt.

[0040] In some embodiments, optionally, as Figure 1 shown, the packing installation tool 100 further includes: an abutting member 160, which is arranged on the adjusting screw 150. The abutting member 160 is located between the adjusting nut 140 and the outer wall of the packing chamber. The adjusting screw 150 can rotate relative to the abutting member 160. Rotating the adjusting screw 150 can make the abutting member 160 abut against the outer wall of the packing chamber.

[0041] In this embodiment, the packing installation tool 100 further includes an abutting member 160. The abutting member 160 abuts against the outer wall of the packing chamber. The abutting member 160 can protect the outer wall of the packing chamber when correcting the polished rod, avoiding damage to the outer wall of the packing chamber. Specifically, the abutting member 160 is located between the adjusting nut 140 and the outer wall of the packing chamber. The adjusting screw 150 can rotate relative to the abutting member 160. When rotating the adjusting screw 150, the abutting member 160 does not rotate together with the adjusting screw 150. Rotating the adjusting screw 150 can make the abutting member 160 abut against the outer wall of the packing chamber. When correcting the polished rod, rotate the adjusting screw 150, the abutting member 160 remains stationary, while the adjusting nut 140 moves away from the abutting member 160, driving the support screw 130, the support nut 120, the clamping assembly 110 and the polished rod to move, so as to correct the polished rod.

[0042] In some embodiments, optionally, as Figure 1 shown, the abutting member 160 includes: an arc-shaped groove 162, and the arc-shaped groove 162 can fit with the outer wall of the packing chamber.

[0043] In this embodiment, the abutting member 160 includes an arc-shaped groove 162. The outer wall of the packing chamber is arc-shaped, and the arc-shaped groove 162 can fit with the outer wall of the packing chamber, thereby protecting the outer wall of the packing chamber during the process of correcting the polished rod.

[0044] In some embodiments, optionally, as Figure 1As shown, the packing installation tool 100 further includes: a connecting rod 170 disposed on the support screw 130 and located between the clamping assembly 110 and the adjusting screw 150; a pressing assembly 180 disposed on the connecting rod 170, and the pressing assembly 180 can rotate relative to the connecting rod 170 to press the packing into the packing chamber.

[0045] In this embodiment, the packing installation tool 100 further includes a connecting rod 170 and a pressing assembly 180. The connecting rod 170 is disposed in the middle of the support screw 130. The connecting rod 170 is located between the clamping assembly 110 and the adjusting screw 150, and the connecting rod 170 is used to install the pressing assembly 180. Specifically, the pressing assembly 180 is disposed on the connecting rod 170, and the pressing assembly 180 can rotate relative to the connecting rod 170. After aligning the polished rod to the center position of the packing box, the packing is sleeved on the polished rod, the pressing assembly 180 is lifted and pressed downward forcefully on the packing, and the packing can be quickly pressed into the packing chamber, thereby saving operation time and reducing operation difficulty, achieving the purpose of time and labor saving.

[0046] In some embodiments, optionally, as Figure 1 shown, the pressing assembly 180 includes: a pressing rod 182, one end of the pressing rod 182 is sleeved on the connecting rod 170, and the pressing rod 182 can rotate relative to the connecting rod 170.

[0047] In this embodiment, the pressing assembly 180 includes a pressing rod 182. One end of the pressing rod 182 is sleeved on the connecting rod 170, and the pressing rod 182 can rotate relative to the connecting rod 170. When installing the packing, the pressing rod 182 is lifted and then pressed downward forcefully on the packing, and the packing can be quickly pressed into the packing chamber, thereby achieving the purpose of time and labor saving.

[0048] In some embodiments, optionally, as Figure 1 shown, the pressing assembly 180 further includes: a first pressing block 184 disposed on the pressing rod 182, the first pressing block 184 includes a first avoiding notch 188; a second pressing block 186 connected to the first pressing block 184 through a connecting rod 187, the second pressing block 186 includes a second avoiding notch 189, and the second pressing block 186 is located between the connecting rod 170 and the adjusting screw 150.

[0049] In this embodiment, the pressing assembly 180 further includes a first pressing block 184 and a second pressing block 186. The first pressing block 184 and the second pressing block 186 are connected by multiple connecting rods 187. In order to avoid the polished rod when installing the packing, the first pressing block 184 and the second pressing block 186 are respectively provided with a first avoiding notch 188 and a second avoiding notch 189. The second pressing block 186 is above the first pressing block 184, and when pressing the packing downward forcefully, the second pressing block 186 abuts against the packing.

[0050] In some embodiments, optionally, as Figure 1As shown, the packing installation tool 100 further includes: an installation hole 190 provided on the pressure rod 182; a connecting screw rod 192, one end of the connecting stud is provided on the first pressing block 184, and the other end of the connecting screw rod 192 passes through the installation hole 190; a fastening nut 194 provided at the other end of the connecting screw rod 192 and threadedly engaged with the connecting screw rod 192.

[0051] In this embodiment, the packing installation tool 100 further includes an installation hole 190, a connecting screw rod 192 and a fastening nut 194. The installation hole 190, the connecting screw rod 192 and the fastening nut 194 are used to install the first pressing block 184 on the pressure rod 182. Specifically, the installation hole 190 is provided on the pressure rod 182, one end of the connecting screw rod 192 is provided on the first pressing block 184, the other end of the connecting screw rod 192 passes through the installation hole 190, the fastening nut 194 is provided at the other end of the connecting screw rod 192, and the fastening nut 194 is threadedly engaged with the connecting screw rod 192 to install and fix the first pressing block 184 on the pressure rod 182.

[0052] In some embodiments, optionally, as Figure 1 shown, the packing installation tool 100 further includes: a spacer sleeve 196 sleeved on the connecting rod 170 and located between the pressure rod 182 and the support screw rod 130; a locking nut 198 threadedly connected to the connecting rod 170, one end of the pressure rod 182 is located between the spacer sleeve 196 and the locking nut 198, and the locking nut 198 is used to limit the movement of the pressing assembly 180.

[0053] In this embodiment, the packing installation tool 100 further includes a spacer sleeve 196 and a locking nut 198. Specifically, the spacer sleeve 196 is sleeved on the connecting rod 170, the spacer sleeve 196 is located between the pressure rod 182 and the support screw rod 130 to separate the pressure rod 182 and the support screw rod 130, avoiding direct contact between the main components such as the pressure rod 182 and the support screw rod 130, and reducing wear and friction. The locking nut 198 is threadedly connected to the connecting rod 170, one end of the pressure rod 182 is located between the spacer sleeve 196 and the locking nut 198, and the locking nut 198 is used to limit the movement of the pressing assembly 180 along the axis direction of the connecting rod 170.

[0054] In actual applications, the clamping component 110 is a fixed slip, which is locked by a locking bolt. The abutting component 160 is a top block, and the top block includes an arc-shaped groove that abuts against the outer wall of the stuffing box chamber. The first pressing block 184 and the second pressing block 186 are stuffing box pressing blocks. The stuffing box installation tool 100 includes a fixed slip, a locking bolt, a support screw 130, a support nut 120, an adjusting nut 140, an adjusting screw 150, a top block, a pressing rod 182, a locking nut 198, a spacer sleeve 196, a connecting rod 170, a connecting screw 192, a fastening nut 194, a first pressing block 184, a second pressing block 186, and a connecting link 187. Among them, both ends of the adjusting screw 150 are square and cylindrical. One end of the adjusting screw 150 is set to be square, which is convenient for using a tool to rotate the adjusting nut 140. The cylindrical end of the adjusting screw 150 passes horizontally through the adjusting nut 140 and is inserted into the top block. The adjusting nut 140 is welded to the support screw 130. The support screw 130 is screwed into the support nut 120, and the support nut 120 is welded to the fixed slip. The connecting rod 170 is welded to the side of the support screw 130. One end of the pressing rod 182 is provided with a round hole. The spacer sleeve 196 passes through the connecting rod 170, and the pressing rod 182 passes through the connecting rod 170 through the round hole. The pressing rod 182 is locked by the locking nut 198. An installation hole 190 is also provided on the pressing rod 182. The center line of the installation hole 190 is perpendicular to the clamping center line of the fixed slip. The connecting screw 192 is welded to the first pressing block 184. The connecting screw 192 passes through the installation hole 190 on the pressing rod 182, and the fastening nut 194 is tightened on the first pressing block 184. The first pressing block 184 and the second pressing block 186 are connected by the connecting link 187. The process of replacing the new packing is as follows:

[0055] First, remove the stuffing box gland and lantern ring, find the position of the polished rod deflection, install the fixed slip (clamping component 110) on the polished rod, place the stuffing box gland and lantern ring on the fixed slip. The fixed slip can act as a carrier. Then, turn the adjusting screw 150 and the top block (abutting component 160) towards the position of the polished rod deflection. Rotate the adjusting screw 150 so that the arc-shaped groove on the side of the top block abuts against the side of the stuffing box chamber. Continue to rotate the adjusting screw 150 until the polished rod is located at the center of the stuffing box, completing the correction of the polished rod.

[0056] Install multiple packings at the wellhead, lift the pressing rod 182, place the stuffing box pressing block (second pressing block 186) on the packing, and then press the pressing rod 182 downward forcefully, and multiple packings can be pressed into the stuffing box chamber at one time, facilitating the quick replacement of the packing. This is especially suitable for the deviated pumping wells at the wellhead, achieving the purpose of saving time and effort and greatly reducing the labor intensity of workers.

[0057] The above description is only for the convenience of those skilled in the art to understand the technical solution of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0058] Although this specification contains many specific implementation details, these should not be construed as limiting the scope of any invention or the scope claimed, but rather as mainly describing the features of specific embodiments of a particular invention. Certain features described in multiple embodiments in this specification may also be implemented in combination in a single embodiment. On the other hand, the various features described in a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. Additionally, although features may operate in certain combinations as described above and even be initially claimed as such, one or more features from the claimed combination may in some cases be removed from the combination, and the claimed combination may be directed to a sub-combination or a variation of a sub-combination.

[0059] Similarly, although operations are depicted in the drawings in a particular order, this should not be construed as requiring that the operations be performed in the particular order shown or sequentially, or that all illustrated operations be performed to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Additionally, the separation of the various system modules and components in the above embodiments should not be construed as required in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0060] Thus, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the acts recited in the claims can be performed in a different order and still achieve the desired result. Additionally, the processes depicted in the drawings are not necessarily in the particular order or sequential order shown to achieve the desired result. In some implementations, multitasking and parallel processing may be advantageous.

[0061] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0062] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A packing installation tool (100), characterized in that, the packing installation tool (100) is used to install packing into a packing chamber, a polished rod is arranged in the packing chamber, and the packing installation tool (100) includes: a clamping assembly (110) for clamping the polished rod, and the axis of the clamped polished rod coincides with at least part of the clamping center line of the clamping assembly (110); a support nut (120) arranged on the clamping assembly (110); a support screw rod (130) passing through the support nut (120); an adjusting nut (140) arranged at the end of the support screw rod (130); an adjusting screw rod (150) passing through the adjusting nut (140), the axis of the adjusting screw rod (150) is perpendicular to the clamping center line of the clamping assembly (110), and the end of the adjusting screw rod (150) is used to abut against the outer wall of the packing chamber; wherein, when the end of the adjusting screw rod (150) abuts against the outer wall of the packing chamber, rotating the adjusting screw rod (150) can make the adjusting nut (140), the support screw rod (130), the support nut (120) and the clamping assembly (110) drive the polished rod to move along the adjusting screw rod (150) to correct the polished rod.

2. The packing installation tool (100) according to claim 1, characterized in that, the clamping assembly (110) includes: a first clamping part (112) rotatably arranged on the support nut (120), and the first clamping part (112) includes a first fastening structure (116); a second clamping part (114) rotatably arranged on the support nut (120), the second clamping part (114) includes a second fastening structure (118), and the first fastening structure (116) is fastened to the second fastening structure (118) for clamping the polished rod.

3. The packing installation tool (100) according to claim 2, characterized in that, the clamping assembly (110) further includes: a locking member (119) connected to the first clamping part (112) and the second clamping part (114), and the locking member (119) is used to lock the first clamping part (112) and the second clamping part (114).

4. The packing installation tool (100) according to claim 1, characterized in that, further includes: an abutting member (160) arranged on the adjusting screw rod (150), the abutting member (160) is located between the adjusting nut (140) and the outer wall of the packing chamber, the adjusting screw rod (150) can rotate relative to the abutting member (160), and rotating the adjusting screw rod (150) can make the abutting member (160) abut against the outer wall of the packing chamber.

5. The packing installation tool (100) according to claim 4, characterized in that, the abutting member (160) includes: an arc-shaped groove (162) which can be fitted with the outer wall of the packing chamber.

6. The packing installation tool (100) according to any one of claims 1 to 5, characterized in that, further comprising: a connecting rod (170) disposed on the support screw (130) and located between the clamping assembly (110) and the adjusting screw (150); a pressing assembly (180) disposed on the connecting rod (170), and the pressing assembly (180) can rotate relative to the connecting rod (170) to press the packing into the packing chamber.

7. The packing installation tool (100) according to claim 6, characterized in that, the pressing assembly (180) includes: a pressing rod (182), one end of the pressing rod (182) is sleeved on the connecting rod (170), and the pressing rod (182) can rotate relative to the connecting rod (170).

8. The packing installation tool (100) according to claim 7, characterized in that, the pressing assembly (180) further includes: a first pressing block (184) disposed on the pressing rod (182), and the first pressing block (184) includes a first avoidance notch (188); a second pressing block (186) connected to the first pressing block (184) by a connecting rod (187), the second pressing block (186) includes a second avoidance notch (189), and the second pressing block (186) is located between the connecting rod (170) and the adjusting screw (150).

9. The packing installation tool (100) according to claim 8, characterized in that, further comprising: a mounting hole (190) disposed on the pressing rod (182); a connecting screw (192), one end of the connecting stud is disposed on the first pressing block (184), and the other end of the connecting screw (192) passes through the mounting hole (190); a fastening nut (194) disposed on the other end of the connecting screw (192) and threadedly engaged with the connecting screw (192).

10. The packing installation tool (100) according to claim 7, characterized in that, further comprising: a spacer sleeve (196) sleeved on the connecting rod (170) and located between the pressing rod (182) and the support screw (130); a locking nut (198) threadedly connected to the connecting rod (170), one end of the pressing rod (182) is located between the spacer sleeve (196) and the locking nut (198), and the locking nut (198) is used to limit the movement of the pressing assembly (180).

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