A drilling tool construction mechanism, system, and method

Abstract

The present application relates to a kind of drilling tool construction mechanism, system and method, wherein mechanism includes mud barrel and thread oil smearing unit, mud barrel has the placement station for drilling tool to pass through, mud barrel includes first barrel body and second barrel body of movable connection, second barrel body is used to make mud barrel open or close;Thread oil smearing unit includes thread oil smearing equipment with the first barrel body movable connection;Thread oil smearing equipment and second barrel body can be switched in first state and second state;In first state, mud barrel is opened, and the placement station of thread oil smearing equipment is aligned with placement station;In second state, mud barrel is closed, and thread oil smearing equipment is located outside mud barrel.The present application integrates thread oil smearing and mud splash-proof function on the same mechanism, can carry out thread oil smearing and mud splash-proof operation respectively, and only needs to realize corresponding operation by a set of drive system, thereby reducing corresponding cost and the operation space occupied.

Description

Technical Field

[0001] This invention relates to the field of oil and gas extraction technology, and in particular to a drilling tool construction mechanism, system and method. Background Technology

[0002] Drilling tools are a crucial component connecting the surface and the well. During drilling, they transmit drill bit pressure and rotational torque to the drill bit and deliver drilling fluid to the bottom of the well. The drill pipes within the drilling tools are connected by threads. During the running-in process, to prevent thread sticking and rusting, and to avoid over-tightening, thread lubricant must be applied to the threads before connection. Furthermore, during tripping out of the drill string, a large amount of mud remains inside the drill pipes. When the drill string is lifted and the drill pipes are separated, a significant amount of mud splashes out, causing a messy work site and wasting mud.

[0003] Currently, thread-applying oil equipment is commonly used to apply thread-applying oil to drill pipe threads. A mud cylinder is typically installed around the drill pipe thread connection to collect splashed mud during drill pipe separation. However, the thread-applying oil equipment and the mud cylinder are usually operated as two separate systems, which is costly and occupies significant workspace, causing inconvenience to on-site personnel. Summary of the Invention

[0004] The purpose of this invention is to address the technical problems of high cost and large operating space required when arranging threaded oil application equipment and mud cylinders in the existing technology, and to provide a drilling tool construction mechanism, system and method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a drilling tool construction mechanism, comprising:

[0007] A mud cylinder having a placement position for drill bits to pass through, the mud cylinder comprising a first cylinder and a second cylinder, the first cylinder and the second cylinder being movably connected, the second cylinder being used to open or close the mud cylinder;

[0008] A threaded oil application unit, comprising a threaded oil application device, wherein the threaded oil application device is movably connected to the first cylinder;

[0009] The threaded oil application device and the second cylinder can switch between a first state and a second state;

[0010] In the first state, the mud cylinder is open, and the application station of the threaded oil application device is aligned with the placement station; in the second state, the mud cylinder is closed, and the threaded oil application device is located outside the mud cylinder.

[0011] As an optional embodiment of the present invention, one side of the first cylinder is rotatably connected to the second cylinder;

[0012] The threaded oil application unit also includes a frame, the threaded oil application device is installed on the frame, and the other side of the first cylinder is rotatably connected to the frame.

[0013] As an optional embodiment of the present invention, a driving device is provided between the second cylinder and the first cylinder, the driving device being used to drive the second cylinder to rotate.

[0014] As an optional embodiment of the present invention, the frame is provided with at least one first through hole, the first cylinder is provided with at least one second through hole, and the first cylinder is provided with at least one third through hole.

[0015] In the first state, at least one first through hole and at least one second through hole are aligned and connected by a pin;

[0016] In the second state, at least one of the first through holes and at least one of the third through holes are aligned and connected by a pin.

[0017] Secondly, the present invention provides a drilling tool construction system, including a driving device and a drilling tool construction mechanism as described in any of the above embodiments, wherein the driving part of the driving device is connected to the first cylinder, and the driving device is used to drive the first cylinder to move.

[0018] As an optional embodiment of the present invention, one side of the first cylinder is rotatably connected to the second cylinder. The second cylinder can switch between a first position and a second position by rotation. When the second cylinder is in the first position, the mud cylinder is open, and when the second cylinder is in the second position, the mud cylinder is closed.

[0019] The threaded oil coating unit also includes a frame, and the threaded oil coating device is installed on the frame. The other side of the first cylinder is rotatably connected to the frame. The threaded oil coating unit can switch between a third position and a fourth position by rotation. When the threaded oil coating unit is in the third position, the coating station of the threaded oil coating device is aligned with the placement station. When the threaded oil coating unit is in the fourth position, the threaded oil coating device is located outside the mud cylinder.

[0020] The weight of the second cylinder and the threaded oil application unit is configured such that when the second cylinder is in the first position and the threaded oil application unit is in the fourth position, the center of gravity of the drilling tool construction mechanism is located at the connection between the drive unit of the drive device and the first cylinder.

[0021] As an optional embodiment of the present invention, the driving device includes a column rotation assembly, a column, a trolley assembly and a support arm assembly connected in sequence, wherein the free end of the support arm assembly is connected to the first cylinder.

[0022] The column rotation assembly is used to drive the column to rotate around the axis of the column, the trolley assembly is used to drive the support arm assembly to move along the axis of the column, and the support arm assembly is used to drive the first cylinder to move radially along the column.

[0023] As an optional embodiment of the present invention, the column slewing assembly is rotatably connected to the column via a slewing bearing, and a slewing fine-tuning component is further provided between the column slewing assembly and the column;

[0024] The rotary fine-tuning assembly includes a sleeve, a screw, nuts, and a rotating shaft. The rotating shaft is connected to the column, the sleeve is rotatably connected to the slewing bearing, one end of the screw is rotatably connected to the rotating shaft, the other end of the screw passes through the sleeve, and two nuts are threadedly connected to the screw and are located on both sides of the sleeve.

[0025] As an optional embodiment of the present invention, the slewing bearing has a protrusion, and there is a gap between the protrusion and the sidewalls of the two nuts;

[0026] The rotary fine-tuning assembly also includes a locking element with two locking strips. The thickness of the locking strips is adapted to the width of the gap. The two locking strips can be inserted into different gaps and prevent the rotation of the two nuts.

[0027] Thirdly, the present invention provides a drilling tool construction method, employing a drilling tool construction system as described in any of the above embodiments, comprising the following steps:

[0028] During drilling, the drive device moves the drilling tool construction mechanism above the drill rod, putting the drilling tool construction mechanism in the first state and aligning the drill rod with the application station of the thread oil application device. The drilling tool construction mechanism then moves down until the application station of the thread oil application device is fitted over the top thread of the drill rod, and the thread oil application device applies thread oil to the top thread of the drill rod.

[0029] When pulling out of the drill string, the mud cylinder is opened, and the drilling tool construction mechanism is moved to the side of the drill pipe by the drive device, so that the connection position of the two drill pipes to be separated is in the placement position, so that the drilling tool construction mechanism is in the second state, and the two drill pipes are separated. The mud cylinder is used to block and collect the mud splashed from the drill pipes.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. The present invention provides a drilling tool construction mechanism that integrates threaded oil application and mud splash prevention functions into a single mechanism through the cooperation of a first cylinder, a second cylinder, and a threaded oil application unit. Taking advantage of the different times of the drilling and tripping processes, the mechanism can perform threaded oil application and mud splash prevention operations separately after being in place. At this time, only one drive system is needed to realize the corresponding operation, thereby reducing the corresponding cost and the occupied working space.

[0032] 2. The drilling tool construction system provided by the present invention, through the setting of the driving device, can move the mud cylinder to the drilling site when it is necessary to apply mud splash prevention or thread oil to the drill pipe, and realize the alignment of the placement position with the drilling path of the drill pipe, and complete the mud splash prevention or thread oil application operation.

[0033] 3. The drilling tool construction method provided by this invention can easily and quickly apply thread oil and mud splash prevention to the drill pipe, thereby improving the efficiency of drilling operations. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a drilling tool construction mechanism in the second state according to Embodiment 1 of the present invention.

[0035] Figure 2 This is a schematic diagram of the overall structure of a drilling tool construction mechanism in the first state according to Embodiment 1 of the present invention.

[0036] Figure 3 This is a top-down schematic diagram of a drilling tool construction mechanism in the second state according to Embodiment 1 of the present invention.

[0037] Figure 4 This is a top sectional view of a drilling tool construction mechanism in the first state according to Embodiment 1 of the present invention.

[0038] Figure 5 This is a schematic diagram of the overall structure of a drilling tool construction system in Embodiment 2 of the present invention.

[0039] Figure 6 This is a side sectional view of a drilling system according to Embodiment 2 of the present invention.

[0040] Figure 7 This is a schematic diagram of the rotary fine-tuning component of a drilling tool construction system in Embodiment 2 of the present invention.

[0041] The markings in the diagram are: 1-mud cylinder; 11-first cylinder body; 111-second through hole; 112-third through hole; 12-second cylinder body; 13-drive equipment; 2-threaded oil application unit; 21-threaded oil application equipment; 22-frame body; 221-pin; 222-first through hole; 3-column slewing assembly; 31-slewing bearing; 32-sleeve body; 33-screw; 34-nut; 35-protrusion; 36-clamp; 4-column; 41-rotating shaft; 5-trolley assembly; 6-support arm assembly. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings.

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] The use of terms such as "first," "second," "third," etc. in terminology is merely for distinguishing identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0045] In the description of the embodiments, "several", "more than", and "a number of" represent at least two. They can be any number, such as two, three, four, five, six, seven, eight, nine, or even more than nine.

[0046] Example 1

[0047] This invention provides a drilling tool construction mechanism, such as... Figures 1 to 4 As shown, the system includes a mud cylinder 1 and a threaded oil application unit 2. The mud cylinder 1 has a placement position for the drill bit to pass through. The mud cylinder 1 includes a first cylinder 11 and a second cylinder 12, which are movably connected. The second cylinder 12 is used to open or close the mud cylinder 1. The mud cylinder 1 can be cylindrical, and the first cylinder 11 and the second cylinder 12 are two semi-cylinders cut along the axis of the cylinder. In this case, the placement position can be set along the axis of the cylinder. The threaded oil application unit 2 includes a threaded oil application device 21, which is movably connected to the first cylinder 11. The threaded oil application device 21 and the second cylinder 12 can be moved to form a first state and a second state of the mechanism.

[0048] In the first state, such as Figure 2 and Figure 4As shown, the mud cylinder 1 is opened, and the coating station of the threaded oil coating device 21 is aligned with the placement station; in the second state, as... Figure 1 and Figure 3 As shown, the mud cylinder 1 is closed, and the threaded oil application device 21 is located outside the mud cylinder 1.

[0049] The placement station refers to a virtual space of the mud cylinder 1. Specifically, the top and bottom of the closed mud cylinder 1 have through holes that can be fitted onto the drill rod. The space between the two through holes is the placement station. The placement station is relatively fixed relative to the position of the first cylinder 11.

[0050] When using the mechanism, the first cylinder 11 is connected to the drive unit of the drive device, and the drive system moves the first cylinder 11 to align the placement position with the drilling path of the drill bit. The drive device can be a steel drill bit. When thread oil needs to be applied to the drill rod threads during drilling, the mechanism is in the first state, and the drill rod thread is in the placement position. At this time, the application position of the thread oil application device 21 can be fitted over the drill rod thread, and the thread oil is applied to the drill rod threads by the thread oil application device 21. When the drill rod needs to be separated during tripping, the mechanism is in the second state, and the drill rod connection position is in the placement position. At this time, the closed mud cylinder 1 can be fitted over the drill rod connection position, and the mud cylinder 1 blocks and collects the mud splashed out during the separation of the drill rod, thereby preventing pollution and waste caused by mud splashing out of the drill rod.

[0051] Based on this, the functions of threaded oil application and mud splash prevention can be integrated into the same mechanism through the cooperation of the first cylinder 11, the second cylinder 12 and the threaded oil application unit 2. Taking advantage of the different times of the drilling and tripping processes, the mechanism can perform threaded oil application and mud splash prevention operations separately after being in place. At this time, only one drive system is needed to realize the corresponding operation, thereby reducing the corresponding cost and the occupied working space.

[0052] Furthermore, both the threaded oil coating device 21 and the mud cylinder 1 operate on the connection parts of the drill pipe. In actual construction, the working positions of the threaded oil coating device 21 and the mud cylinder 1 overlap. By integrating the functions of threaded oil coating and mud splash prevention into the same mechanism, the required adjustment data for adjusting the position of the threaded oil coating device 21 and the mud cylinder 1 are the same or similar. This can also improve the efficiency of replacing the threaded oil coating device 21 and the mud cylinder 1, making drilling operations smoother.

[0053] The aforementioned active connection method can be either a sliding connection or a rotational connection.

[0054] When the above-mentioned active connection is a rotatable connection, specifically, one side of the first cylinder 11 is rotatably connected to the second cylinder 12, and the mud cylinder 1 is opened or closed by the rotation of the second cylinder 12 relative to the first cylinder 11; the threaded oil coating unit 2 also includes a frame 22, the threaded oil coating device 21 is installed on the frame 22, and the other side of the first cylinder 11 is rotatably connected to the frame 22, and the threaded oil coating unit 2 is positioned outside the mud cylinder 1 and aligned with the placement position by the rotation of the threaded oil coating unit 2 relative to the first cylinder 11.

[0055] In one or more embodiments, such as Figures 3 to 4 As shown, a driving device 13 is provided between the second cylinder 12 and the first cylinder 11. The driving device 13 is used to drive the second cylinder 12 to rotate. When the second cylinder 12 is closed, the driving part of the driving device 13 can continue to apply an external force to the second cylinder 12 to make the second cylinder 12 close tightly, thereby resisting the impact of mud when it splashes out and improving the mud splash prevention effect of the mud cylinder 1.

[0056] It is understood that the drive device 13 can be a hydraulic cylinder, a pneumatic cylinder, a motor, or other device or structure that continuously applies force to the second cylinder 12 to keep the second cylinder 12 tightly closed. When the drive device 13 is a hydraulic cylinder, such as Figures 3 to 4 As shown, one end of the hydraulic cylinder is rotatably connected to the reinforcing rib of the first cylinder 11, and the other end is rotatably connected to the reinforcing rib of the second cylinder 12. The extension and retraction of the hydraulic cylinder drives the second cylinder 12 to rotate on the first cylinder 11.

[0057] In one or more embodiments, the frame 22 has at least one first through hole 222, the first cylinder 11 has at least one second through hole 111 inside, and the first cylinder 11 has at least one third through hole 112 outside. In a first state, at least one first through hole 222 and at least one second through hole 111 are aligned and connected by a pin 221, thereby positioning the thread oil application device 21 in the first state and ensuring that the thread oil application device 21 remains stable when applying thread oil, thereby improving the accuracy of thread oil application. In a second state, at least one first through hole 222 and at least one third through hole 112 are aligned and connected by a pin 221, thereby positioning the thread oil application device 21 in the second state and ensuring that the thread oil application device 21 remains stable when the device is performing mud splash prevention, avoiding collisions caused by vibration during mud splash prevention, which could damage the thread oil application device 21.

[0058] It should be noted that the definition of a first through hole 222, a second through hole 111, or a third through hole 112 can be formed by a single uninterrupted through hole, or by multiple through holes spaced apart along the same axis.

[0059] When a first through hole 222, a second through hole 111, or a third through hole 112 is composed of multiple through holes spaced apart along the same axis, specifically, the multiple through holes constituting the same first through hole 222, second through hole 111, or third through hole 112 are aligned with each other, and during drilling operations, the multiple through holes are vertically coaxial. In this case, the same long pin and multiple short pins can be used to connect the first through hole 222 with the second through hole 111 or the third through hole 112.

[0060] In the first state, the first through hole 222 connected to the second through hole 111 and the first through hole 222 connected to the third through hole 112 in the second state can be the same first through hole 222 or two different first through holes 222. Preferably, there are two first through holes 222, and the positions of the two first through holes 222 on the frame 22 are as follows: Figure 1 and Figure 2 As shown: Figure 2 As shown, in the first state, through the second through hole 111 and one of the first through holes 222 ( Figure 1 The first through hole 222 shown is used for positioning; as Figure 1 As shown, in the second state, through the third through hole 112 and another first through hole 222 ( Figure 2 Positioning is achieved through the first through hole 222 shown.

[0061] Example 2

[0062] The present invention also provides a drilling tool construction system, such as Figures 5 to 7 As shown, it includes a drive device and a drilling tool construction mechanism as described in any of Embodiment 1. The drive part of the drive device is connected to the first cylinder 11. The drive device is used to drive the first cylinder 11 to move, thereby enabling the mud cylinder 1 to be moved to the drilling site when mud splash prevention or thread oil application is required on the drill pipe, and aligning the placement position with the drilling path of the drill pipe.

[0063] During movement, to ensure the drill pipe can enter the placement position, the mud cylinder 1 needs to be kept open. However, during this process, the weight of the second cylinder 12 or the threaded oil application unit 2 can cause the center of gravity to shift, leading to the tilting of the first cylinder 11. This ultimately results in inaccurate positioning of the placement position and the drill pipe, affecting subsequent use. Therefore, in one or more embodiments, one side of the first cylinder 11 is rotatably connected to the second cylinder 12. The second cylinder 12 can switch between a first position and a second position by rotation. When the second cylinder 12 is in the first position, the mud cylinder 1 is open; and when the second cylinder 12 is in the second position, the mud cylinder 1 is closed. The threaded oil application unit 2 also includes a frame 22, and the threaded oil application device 21 is installed on the frame 22. The other side of the first cylinder 11 is rotatably connected to the frame 22. The threaded oil application unit 2 can switch between a third position and a fourth position by rotation. When the threaded oil application unit 2 is in the third position, the application station of the threaded oil application device 21 is aligned with the placement station. When the threaded oil application unit 2 is in the fourth position, the threaded oil application device 21 is located outside the mud cylinder 1.

[0064] Therefore, when the second cylinder 12 is in the first position and the thread oil application unit 2 is in the third position, the mechanism forms the first state; when the second cylinder 12 is in the second position and the thread oil application unit 2 is in the fourth position, the mechanism forms the first state.

[0065] The weights of the second cylinder 12 and the threaded oil application unit 2 are configured such that when the second cylinder 12 is in the first position and the threaded oil application unit 2 is in the fourth position, the center of gravity of the drilling tool construction mechanism is located at the connection between the drive unit of the drive device and the first cylinder 11. Therefore, the second cylinder 12 and the threaded oil application unit 2 can be considered as two counterweights. By limiting the weight of the second cylinder 12 and the threaded oil application unit 2, balancing of the drilling tool construction mechanism during movement can be achieved, making the drilling tool construction mechanism more stable during movement, resulting in more accurate alignment between the final placement position and the drilling path, and improving the cooperation between the drilling tool construction mechanism and the drill pipe.

[0066] Those skilled in the art will know how to configure the weights of the two counterweights to balance the entire system.

[0067] The second cylinder 12 can be positioned in the first and second positions by the extension or retraction limit of the cylinder itself, and the threaded oil application unit 2 can be positioned in the third and fourth positions by the cooperation of the pin 221 with the first through hole 222 and the second through hole 111 or the third through hole 112.

[0068] In one or more embodiments, such as Figures 5 to 6 As shown, the driving device includes a column rotation assembly 3, a column 4, a trolley assembly 5, and a support arm assembly 6 connected in sequence. The free end of the support arm assembly 6 is connected to the first cylinder 11. The column 4 is used to be mounted on the drill table. The column rotation assembly 3 is rotatably connected to the column 4 through a slewing bearing 31 and is used to drive the column 4 to rotate around the axis of the column 4. The trolley assembly 5 is used to drive the support arm assembly 6 to move along the axis of the column 4. The support arm assembly 6 is used to drive the first cylinder 11 to move radially along the column 4. Through the cooperation of the column rotation assembly 3, the trolley assembly 5, and the support arm assembly 6, the positions of the first cylinder 11, the second cylinder 12 on it, and the threaded oil application unit 2 can be adjusted in all directions, thereby aligning the placement position with the drilling path of the drill rod.

[0069] The column 4 is rotated by the column rotation assembly 3, which allows the device to be removed from the drilling position on the drilling platform when it is not needed, leaving working space on the drilling platform for other work.

[0070] The first cylinder 11 is raised and lowered by the pulley assembly 5, which makes the device applicable to drill pipes of various lengths, thus improving the applicability of the device. In addition, during the drilling process, the height of the top of the drill pipe is different. When applying thread oil, the raising and lowering can ensure that the thread oil can be applied to the drill thread, thus ensuring the thread oil application is carried out.

[0071] In actual operation, there are certain requirements for the alignment accuracy between the placement position and the drilling path of the drill rod. However, the rotation accuracy of the column rotation assembly 3 driving the column 4 is relatively low, requiring multiple adjustments to make the support arm assembly 6 point to the drilling position of the drill rod. Therefore, in one or more embodiments, such as Figure 7 As shown, a rotation fine-tuning component is also provided between the column rotation assembly 3 and the column 4.

[0072] The rotary fine-tuning assembly includes a sleeve 32, a screw 33, nuts 34, and a rotating shaft 41. The rotating shaft 41 is connected to the column 4. The sleeve 32 is rotatably connected to the rotary bearing 31. One end of the screw 33 is rotatably connected to the rotating shaft 41, and the other end of the screw 33 passes through the sleeve 32. Two nuts 34 are threadedly connected to the screw 33 and are located on both sides of the sleeve 32.

[0073] When the rotation angle of the column 4 deviates, the position of the nut 34 on the screw 33 is adjusted according to the magnitude of the deviation, so that there is an appropriate gap between the nut 34 on the side of the sleeve 32 facing away from the rotation direction of the column 4 and the sleeve 32. When the column 4 rotates in the predetermined rotation direction, the column 4 drives the end of the screw 33 to move. At this time, the screw 33 rotates around the shaft 41, and the sleeve 32 rotates under the drive of the screw 33. After the screw 33 moves a certain distance, the nut 34 on the side of the sleeve 32 facing away from the rotation direction of the column 4 abuts against the sleeve 32, thereby preventing the column 4 from continuing to rotate. Thus, the movement of the nut 34 on the screw 33 achieves fine adjustment of the rotation angle of the column 4, improves the rotation accuracy of the column 4, and thus improves the alignment accuracy of the placement position and the drilling path of the drilling tool.

[0074] Optionally, the axis of the screw 33 is perpendicular to the axis of the column 4, and the axis of the rotating shaft 41 and the rotation axis of the sleeve 32 are parallel to the axis of the column 4.

[0075] Based on this, the slewing bearing 31 has a protrusion 35, and there is a gap between the protrusion 35 and the sidewalls of the two nuts 34; the slewing fine adjustment assembly also includes a locking member 36, which has two locking strips. The thickness of the locking strips is adapted to the width of the gaps, and the two locking strips can be inserted into different gaps and prevent the rotation of the two nuts 34.

[0076] This ensures that the nut 34 is unlikely to shift under the influence of compressive force during its contact with the sleeve 32, thereby increasing the resistance strength that the rotary fine adjustment assembly can apply to the rotation of the column 4, and thus improving the adjustment accuracy of the rotary fine adjustment assembly.

[0077] Example 3

[0078] Based on any of the drilling tool construction systems provided in Embodiment 2, the present invention also provides a drilling tool construction method, comprising the following steps:

[0079] During drilling, the drive device moves the drilling tool construction mechanism above the drill rod, putting the drilling tool construction mechanism in the first state and aligning the drill rod with the application station of the thread oil application device 21. The drilling tool construction mechanism then moves down until the application station of the thread oil application device 21 is fitted over the top thread of the drill rod, and the thread oil application device 21 applies thread oil to the top thread of the drill rod.

[0080] When pulling out of the drill string, the mud cylinder 1 is opened, and the drilling tool construction mechanism is moved to the side of the drill pipe by the drive device, so that the connection position of the two drill pipes to be separated is in the placement position, so that the drilling tool construction mechanism is in the second state, and the two drill pipes are separated. The mud cylinder 1 is used to block and collect the mud splashed from the drill pipes.

[0081] In one or more embodiments, the present invention provides a drilling tool construction method, comprising the following specific steps:

[0082] S1. Pre-adjust the position of the drilling equipment according to the drilling location:

[0083] The column slewing assembly 3 drives the column 4 to rotate, causing the drilling tool to roughly align with the drilling position. Based on the angular deviation between the drilling position and the drilling tool's axis relative to the column 4, the position of the nut 34 in the slewing fine-tuning assembly on the screw 33 is adjusted, ensuring an appropriate gap between the nut 34 (located on the side of the sleeve 32 facing away from the column 4's rotation direction) and the sleeve 32. When the column 4 rotates in the predetermined direction, it moves the end of the screw 33, causing the screw 33 to rotate around the shaft 41, and the sleeve 32 to rotate under the screw 33's influence. After the screw 33 moves a certain distance, the nut 34 (located on the side of the sleeve 32 facing away from the column 4's rotation direction) comes into contact with the sleeve 32, preventing further rotation of the column 4. Then, the nut 34 is tightened. Thus, the movement of the nut 34 on the screw 33 fine-tunes the rotation angle of the column 4, allowing the drilling tool to precisely align with the drilling position.

[0084] S2. During the drilling process, when the uppermost drill rod in the drill string completes its lowering action, and the entire drill string still needs to be lowered, the support arm assembly 6 and the trolley assembly 5 of the drive device drive the drill string construction mechanism to move. During the movement, the second cylinder 12 is in the first position, and the threaded oil application unit 2 is in the fourth position, achieving the balancing of the entire drill string construction mechanism. When the drill string construction mechanism moves above the drill rod, it is placed in the first state, and the drill rod is aligned with the application position of the threaded oil application device 21. The trolley assembly 5 drives the drill string construction mechanism to move down until the application position of the threaded oil application device 21 is fitted onto the top thread of the drill rod. The threaded oil application device 21 applies threaded oil to the top thread of the drill rod. After the threaded oil application is completed, the drive device drives the drill string construction mechanism to move away, and another drill rod is threadedly connected to the drill rod.

[0085] S3. During the tripping process, when the connection point of the two drill pipes is exposed and the two drill pipes need to be separated, the second cylinder 12 is placed in the first position and the threaded oil application unit 2 is placed in the fourth position. The driving device drives the drilling tool construction mechanism to move to the side of the drill pipes and places the connection point of the two drill pipes to be separated in the placement position. Then, the drilling tool construction mechanism is placed in the second state. At this time, the mud cylinder 1 is closed and fitted outside the connection point of the two drill pipes. Then, the two drill pipes are separated, and the mud cylinder 1 blocks and collects the mud splashed out from the connection point of the drill pipes.

[0086] Based on this method, thread oil application and mud splash prevention operations can be performed on drill pipes in a relatively accurate, stable, simple and quick manner, thereby improving the efficiency of drilling operations.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drilling tool construction mechanism, characterized in that, include: The mud cylinder (1) has a placement position for the drill bit to pass through. The mud cylinder (1) includes a first cylinder (11) and a second cylinder (12). The first cylinder (11) and the second cylinder (12) are movably connected. The second cylinder (12) is used to open or close the mud cylinder (1). A threaded oil coating unit (2) includes a threaded oil coating device (21), which is movably connected to the first cylinder (11). The threaded oil coating device (21) and the second cylinder (12) can switch between a first state and a second state. In the first state, the mud cylinder (1) is open, and the coating station of the threaded oil coating device (21) is aligned with the placement station. In the second state, the mud cylinder (1) is closed, and the threaded oil coating device (21) is located outside the mud cylinder (1). One side of the first cylinder (11) is rotatably connected to the second cylinder (12); The threaded oil application unit (2) also includes a frame (22), the threaded oil application device (21) is installed on the frame (22), and the other side of the first cylinder (11) is rotatably connected to the frame (22); The frame (22) has at least one first through hole (222), the first cylinder (11) has at least one second through hole (111) inside, and the first cylinder (11) has at least one third through hole (112) outside; In the first state, at least one of the first through holes (222) and at least one of the second through holes (111) are aligned and connected by a pin (221); In the second state, at least one of the first through holes (222) and at least one of the third through holes (112) are aligned and connected by a pin (221); The first through hole (222), or a second through hole (111), or a third through hole (112) is composed of a plurality of through holes spaced apart along the same axial direction.

2. The drilling tool construction mechanism according to claim 1, characterized in that, A driving device (13) is provided between the second cylinder (12) and the first cylinder (11), and the driving device (13) is used to drive the second cylinder (12) to rotate.

3. A drilling tool construction system, characterized in that, The device includes a drive unit and a drilling tool construction mechanism as described in any one of claims 1-2, wherein the drive unit of the drive unit is connected to the first cylinder (11), and the drive unit is used to drive the first cylinder (11) to move.

4. The drilling tool construction system according to claim 3, characterized in that, One side of the first cylinder (11) is rotatably connected to the second cylinder (12). The second cylinder (12) can switch between a first position and a second position by rotation. When the second cylinder (12) is in the first position, the mud cylinder (1) is open, and when the second cylinder (12) is in the second position, the mud cylinder (1) is closed. The threaded oil coating unit (2) also includes a frame (22), and the threaded oil coating device (21) is installed on the frame (22). The other side of the first cylinder (11) is rotatably connected to the frame (22). The threaded oil coating unit (2) can switch between a third position and a fourth position by rotation. When the threaded oil coating unit (2) is in the third position, the coating station of the threaded oil coating device (21) is aligned with the placement station. When the threaded oil coating unit (2) is in the fourth position, the threaded oil coating device (21) is located outside the mud cylinder (1). The weight of the second cylinder (12) and the threaded oil application unit (2) is configured such that when the second cylinder (12) is in the first position and the threaded oil application unit (2) is in the fourth position, the center of gravity of the drilling tool construction mechanism is located at the connection between the drive part of the drive device and the first cylinder (11).

5. A drilling tool construction system according to claim 3, characterized in that, The drive device includes a column rotation assembly (3), a column (4), a trolley assembly (5) and a support arm assembly (6) connected in sequence, with the free end of the support arm assembly (6) connected to the first cylinder (11); The column rotation assembly (3) is used to drive the column (4) to rotate around the axis of the column (4), the trolley assembly (5) is used to drive the support arm assembly (6) to move along the axis of the column (4), and the support arm assembly (6) is used to drive the first cylinder (11) to move radially along the column (4).

6. A drilling tool construction system according to claim 5, characterized in that, The column slewing assembly (3) is rotatably connected to the column (4) via a slewing bearing (31), and a slewing fine adjustment component is also provided between the column slewing assembly (3) and the column (4); The rotary fine-tuning assembly includes a sleeve (32), a screw (33), nuts (34), and a rotating shaft (41). The rotating shaft (41) is connected to the column (4). The sleeve (32) is rotatably connected to the slewing bearing (31). One end of the screw (33) is rotatably connected to the rotating shaft (41). The other end of the screw (33) passes through the sleeve (32). Two nuts (34) are threadedly connected to the screw (33) and are located on both sides of the sleeve (32).

7. A drilling tool construction system according to claim 6, characterized in that, The slewing bearing (31) has a protrusion (35), and there is a gap between the protrusion (35) and the sidewalls of the two nuts (34); The rotary fine-tuning assembly also includes a locking member (36) having two locking strips, the thickness of which is adapted to the width of the gap, the two locking strips being able to be inserted into different gaps and preventing the rotation of the two nuts (34).

8. A drilling tool construction method, characterized in that, The drilling system described in any one of claims 3-7 includes the following steps: During drilling, the drive device moves the drilling tool construction mechanism to the top of the drill rod, so that the drilling tool construction mechanism is in the first state and the drill rod is aligned with the coating position of the thread oil coating device (21). The drilling tool construction mechanism moves down until the coating position of the thread oil coating device (21) is fitted outside the top thread of the drill rod. The thread oil coating device (21) is used to apply thread oil to the top thread of the drill rod. When pulling out of the drill string, the mud cylinder (1) is opened, and the drilling tool construction mechanism is moved to the side of the drill rod by the drive device, so that the connection position of the two drill rods to be separated is in the placement position, so that the drilling tool construction mechanism is in the second state, and the two drill rods are separated. The mud splashed out of the drill rod is blocked and collected by the mud cylinder (1).

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