A continuous motion drill rig and method of operation thereof

Abstract

This invention provides a continuous motion drilling rig and its operating method. The continuous motion drilling rig includes a base (1), a derrick (2), two sets of guide rails (3), two pulleys (4), two sets of upper and lower unhooking devices (5), two sets of lifting clamps (6), a pushing device (8), a second-level platform (9), two sets of drill string moving devices (11), and a pulley lifting drive system. This continuous motion drilling rig and its operating method can achieve continuous and uninterrupted tripping in and out of the drill string. Compared with traditional drilling rigs, the degree of automation has been significantly improved, which can significantly improve drilling efficiency, reduce operators, and reduce safety risks.

Description

Technical Field

[0001] This invention relates to the field of oil drilling equipment technology, specifically to a continuous motion drilling rig and its working method. Background Technology

[0002] Traditional oil drilling rigs, regardless of their level of automation, require frequent interruptions during the tripping and drilling processes to complete connection and disconnection operations. This discontinuity reduces operational efficiency and fails to meet the demands of high-efficiency drilling. It also causes downhole pressure fluctuations, which are detrimental to wellbore stability. Furthermore, with low levels of automation, traditional drilling rigs still require operators on the drilling platform and secondary drilling platform, resulting in high labor intensity and safety risks. While highly automated traditional drilling rigs can reduce the number of operators on the drilling platform and secondary drilling platform, thus lowering labor intensity, drilling efficiency is not significantly improved. Summary of the Invention

[0003] To address the problem of discontinuous tripping of drill strings in existing drilling rigs, this invention provides a continuous motion drilling rig and its operating method. This continuous motion drilling rig and its operating method can achieve continuous and uninterrupted tripping of drill strings. Compared with traditional drilling rigs, the degree of automation has been greatly improved, which can significantly improve drilling efficiency, reduce operators, and reduce safety risks.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A continuous motion drilling rig, comprising:

[0006] Base;

[0007] The derrick is mounted on the base.

[0008] Two sets of guide rails are set on the left and right sides, and the guide rails are mounted on the derrick and are in an upright position.

[0009] Two trolleys are set on the left and right, and the trolleys are connected to the guide rails one by one. The trolleys can move up and down along the guide rails. The trolleys are equipped with an upper and lower shackle device, a lifting clamp and a pushing device. The upper and lower shackle device is located directly above the lifting clamp. The pushing device can make the upper and lower shackle device and the lifting clamp move horizontally and be located synchronously or separately directly above or away from the wellhead.

[0010] The second-level platform is set on the derrick and can store the drill string.

[0011] The two drill string transfer devices are set on the left and right. The drill string transfer device can move the drill string horizontally and vertically. The drill string transfer device can move the drill string stored on the second platform to the top of the wellhead. The drill string transfer device can also move the drill string at the top of the wellhead to the second platform for storage.

[0012] The trolley lifting drive system enables each trolley to move up and down independently.

[0013] A method for operating a continuous motion drilling rig, wherein the method employs the aforementioned continuous motion drilling rig, and the method includes one or more of a tripping process, a down-drilling process, and a drilling process.

[0014] The beneficial effects of this invention are: it changes the traditional construction method in which each connection and disconnection of a drilling rig requires a pause on the drilling platform and the tripping of the drill can only be carried out intermittently. It can achieve continuous and uninterrupted tripping (with uniform or non-uniform speed). Compared with traditional drilling rigs, the degree of automation has been greatly improved, which can significantly improve drilling construction efficiency, reduce operators, and reduce safety risks. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Figure 1 This is a front view schematic diagram of the continuous motion drilling rig described in this invention.

[0017] Figure 2 This is a left-side schematic diagram of the continuous motion drilling rig described in this invention.

[0018] Figure 3 This is a top view schematic diagram of the continuous motion drilling rig described in this invention.

[0019] Figure 4 This is a simplified schematic diagram of the continuous motion drilling rig described in this invention.

[0020] Figure 5 This is a simplified diagram of the pulley.

[0021] Figure 6 This is a schematic diagram showing that the right-side pulley is higher than the left-side pulley during the drilling process.

[0022] Figure 7 This is a schematic diagram showing the right-side pulley being lower than the left-side pulley during the drilling process.

[0023] Figure 8 This is a schematic diagram of the drilling process.

[0024] 1. Base; 2. Derrick; 3. Guide rail; 4. Pulley; 5. Upper and lower shackle device; 6. Lifting clamp; 7. Top drive device; 8. Pushing device; 9. Second platform; 10. Drill string; 11. Drill string transfer device; 12. Winch lifting device;

[0025] 101. Top work panel;

[0026] 201. Left support column; 202. Upper support beam; 203. Right support column;

[0027] 401. Car upright;

[0028] 801. First telescopic mechanism; 802. Second telescopic mechanism;

[0029] 1101. Robotic arm; 1102. Column;

[0030] 1201. Winch; 1202. Overhead crane; 1203. Traveling crane; 1204. Rope. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] A continuous motion drilling rig, comprising:

[0033] Base 1;

[0034] Derrick 2 is mounted on base 1;

[0035] Two sets of guide rails 3 are set on the left and right sides. The guide rails 3 are fixedly set on the derrick 2 and are in an upright state.

[0036] Two trolleys 4 are set on the left and right sides, and the trolleys 4 are connected to the guide rails 3 one by one. The trolleys 4 can move up and down along the guide rails 3. The trolleys 4 are equipped with an upper uncoupling device 5, a lifting clamp 6 and a pushing device 8. The upper uncoupling device 5 is located directly above the lifting clamp 6. The pushing device 8 can make the upper uncoupling device 5 and the lifting clamp 6 move in the horizontal direction (i.e., the direction perpendicular to the wellhead axis) and be located synchronously or separately directly above or away from the wellhead.

[0037] The second-level platform 9 is set on the derrick 2 and can store the drill string 10 (the drill string 10 is not a component of the continuous motion drilling rig).

[0038] Two drill string transport devices 11 are arranged on the left and right. The drill string transport device 11 can move the drill string 10 horizontally, move the drill string 10 vertically, and make the drill string 10 perform a combined horizontal and vertical movement. The drill string transport device 11 can move the drill string 10 stored on the second platform 9 to the top of the wellhead. The drill string transport device 11 can also move the drill string 10 at the top of the wellhead to the second platform 9 for storage. The drill string 10 is in an upright state.

[0039] The trolley lifting drive system enables each trolley to move independently up and down, such as... Figures 1 to 5 As shown.

[0040] In this embodiment, the base 1 includes an upper working panel 101, and an inner through hole corresponding to the wellhead is provided in the center of the upper working panel 101. The inner through hole is located directly above the wellhead. The base 1 has a variety of complex load-bearing capabilities. The upper working panel 101 is flat and is used to install and fix components.

[0041] In this embodiment, the left and right parts of the continuous motion drilling rig are functional mirror images of each other (the functions of the left and right parts correspond one-to-one, but the geometric dimensions are not necessarily completely symmetrical; the upper and lower unhooking devices, etc., may not be selected of the same specification, which may lead to dimensional asymmetry). The left and right parts of the continuous motion drilling rig are symmetrical or functionally corresponding about the axis of the wellhead. The derrick 2 has a portal frame structure and includes a left support column 201, an upper support beam 202, and a right support column 203 connected sequentially from left to right. The guide rail 3 on the left side is connected and fixed to the left support column 201, and the guide rail 3 on the right side is connected to the right support column 203. The left support column 201 and the right support column 203 are symmetrically arranged on the left and right sides of the wellhead (i.e., the wellbore). The left support column 201 and the right support column 203 are mirror images of each other or correspond to each other. The upper support beam 202 connects the top of the left support column 201 and the top of the right support column 203 into one unit.

[0042] In this embodiment, the left and right trolleys 4 are mirror images of each other. Each trolley 4 includes a vertical plate 401 and wheels. The pushing device 8 includes a first telescopic mechanism 801. The hanger 6 is located directly below the upper uncoupling device 5 and is fixed relative to the upper uncoupling device 5. Both the upper uncoupling device 5 and the hanger 6 are connected to the first telescopic mechanism 801, which is telescopic, enabling the hanger 6 and the upper uncoupling device 5 to move synchronously in the horizontal direction. When the first telescopic mechanism 801 is extended, both the upper uncoupling device 5 and the hanger 6 are located directly above the wellhead. When the first telescopic mechanism 801 is retracted, both the upper uncoupling device 5 and the hanger 6 are away from directly above the wellhead. The upper uncoupling device 5 has an automatic upper and lower coupling function, and the hanger 6 has the function of attaching and detaching the coupling of the drill string 10. Both the upper uncoupling device 5 and the hanger 6 are existing technology products.

[0043] Both the upper and lower shackle device 5 and the lifting clamp 6 are connected to the vehicle upright plate 401 via a first telescopic mechanism 801. The first telescopic mechanism 801 contains a hydraulic cylinder, which enables the upper and lower shackle device 5 and the lifting clamp 6 to move horizontally and maintain a horizontal position after movement. When the first telescopic mechanism 801 is extended, both the upper and lower shackle device 5 and the lifting clamp 6 are located directly above the well opening, and their rotation centers are located on the axis of the well opening, away from the vehicle upright plate 401. When the first telescopic mechanism 801 is retracted, both the upper and lower shackle device 5 and the lifting clamp 6 are moved away from directly above the well opening, and their rotation centers are moved away from the axis of the well opening, closer to the vehicle upright plate 401.

[0044] In this embodiment, a top drive device 7 is also provided on the pulley 4. The top drive device 7 is located directly above the upper uncoupling device 5. The pushing device 8 enables the top drive device 7 to move horizontally and position it directly above or away from the wellhead. Both the top drive device 7 and the pushing device 8 can be existing technology products. Other components of the continuous motion drilling rig can also be existing technology products.

[0045] In this embodiment, the pushing device 8 includes a second telescopic mechanism 802, which is independent of the first telescopic mechanism 801. The second telescopic mechanism 802 and the first telescopic mechanism 801 can also be associated through a control program. The top drive device 7 is connected to the second telescopic mechanism 802, which is capable of telescopic movement. When both the first telescopic mechanism 801 and the second telescopic mechanism 802 are extended, the top drive device 7 is located directly above the wellhead. When both the first telescopic mechanism 801 and the second telescopic mechanism 802 are retracted, the top drive device 7 moves away from directly above the wellhead (when the first telescopic mechanism 801 is not retracted and the second telescopic mechanism 802 is retracted, the top drive device 7 also moves away from directly above the wellhead). The top drive device 7 can clamp and drive the drill string 10 to rotate.

[0046] The top drive unit 7 is connected to the vehicle upright plate 401 via a second telescopic mechanism 802. The second telescopic mechanism 802 contains a hydraulic cylinder and enables the top drive unit 7 to move horizontally and maintain a horizontal position after movement. When the second telescopic mechanism 802 is extended, the top drive unit 7 is located directly above the wellhead, and its rotation axis is located on the axis of the wellhead. The top drive unit 7 is away from the vehicle upright plate 401. When the second telescopic mechanism 802 is retracted, the top drive unit 7 is moved away from directly above the wellhead, its rotation axis is moved away from the axis of the wellhead, and the top drive unit 7 is closer to the vehicle upright plate 401.

[0047] In this embodiment, the second-level platform 9 is installed and fixed at a suitable height on the derrick 2. The second-level platform 9 is provided with multiple baffles and multiple drill string storage channels, which are arranged symmetrically on the left and right. The second-level platform 9 and the base 1 cooperate to stably support the long drill string 10 for a long time. The base 1 can stably support the bottom end of the drill string 10 for a long time, and the second-level platform 9 can stably support the side of the drill string 10 for a long time.

[0048] In this embodiment, the left and right drill string transport devices 11 are mirror images of each other. Each drill string transport device 11 includes a robotic arm 1101, a column 1102, and a column rotation drive mechanism connected in sequence. The column 1102 can rotate, meaning the column rotation drive mechanism can drive the column 1102 to rotate about its axis or a line parallel to the axis, keeping the column 1102 upright. The left and right columns 1102 are located on the left and right sides of the wellhead, respectively. The rotation of the column 1102 drives the robotic arm 1101 to rotate, allowing the robotic arm 1101 to grip and release the drill string 10. The robotic arm 1101 can move the drill string 10 horizontally, move it vertically, and perform a combined horizontal and vertical motion.

[0049] The manipulator 1101 can rotate about the axis of the column 1102 or a line parallel to the axis, and it can also move up and down. The operating part of the manipulator 1101 can move from directly above the wellhead to directly below the second-level platform 9, thereby moving the drill string 10 from directly above the wellhead to a designated position on the second-level platform 9 for storage. The operating part of the manipulator 1101 can also move from directly below the second-level platform 9 to directly above the wellhead, thereby moving the drill string 10 stored at a designated position on the second-level platform 9 to directly above the wellhead.

[0050] In this embodiment, the trolley lifting drive system includes two winch lifting devices 12 arranged on the left and right sides, with each winch lifting device 12 corresponding to a trolley 4, and the two winch lifting devices 12 being mirror images of each other. Each winch lifting device 12 includes a winch 1201, a crane 1202, and a rope 1204. The winch 1201 is fixed to the base 1, and the crane 1202 can be adjusted left and right. The crane 1202 is fixed to the top of the derrick 2 and includes a fixed pulley. The trolley 4 includes a movable pulley. The rope 1204 passes sequentially around the fixed pulley of the crane 1202 and the movable pulley of the trolley 4. One end of the rope 1204 is connected to the winch 1201, and the other end is connected to the derrick 2 or the base 1. The winch 1201 can move the trolley 4 up and down by raising and lowering the rope 1204.

[0051] Alternatively, the winch lifting device 12 includes a winch 1201, a crane 1202, a traveling block 1203, and a rope 1204. The winch 1201 is fixed to the base 1, the crane 1202 is fixed to the top of the derrick 2, and the traveling block 1203 is located between the pulley 4 and the crane 1202. The traveling block 1203 and the pulley 4 are hooked and connected in a one-to-one correspondence. The traveling block 1203 includes a movable pulley. The rope 1204 passes sequentially around the fixed pulley of the crane 1202 and the movable pulley of the traveling block 1203. One end of the rope 1204 is connected to the winch 1201, and the other end of the rope 1204 is connected to the derrick 2 or the base 1. The winch 1201 can move the pulley 4 up and down by raising and lowering the rope 1204.

[0052] The following describes a working method for a continuous motion drilling rig. The working method of the continuous motion drilling rig adopts the aforementioned continuous motion drilling rig and includes one, two, or three processes: the drilling start-up process, the drilling start-up process, and the drilling process.

[0053] The drilling process includes the following steps:

[0054] Step 1a: The axis of the drill string 10 is basically coincident with the axis of the wellhead. The left trolley 4 moves to the lower limit position of the trolley. The upper and lower coupling device 5 and the lifting clamp 6 on the left trolley 4 move to the top of the wellhead. Then the left lifting clamp 6 hangs on the coupling at the upper end of the drill string 10. The left trolley 4 moves from the lower limit position of the trolley to the upper part of the derrick 2. The drill string 10 moves upward with the left trolley 4.

[0055] Step 2a: The right-side trolley 4 moves to its lower limit position, and the manipulator 1101 of the drill string transfer device 11 on the left moves to its low position. The upper / lower coupling device 5 and the lifting clamp 6 on the right-side trolley 4 move to directly above the wellhead. Then, the right-side lifting clamp 6 attaches to the coupling at the lower end of the drill string 10, and the right-side lifting clamp 6 bears the load of the drill string 10, completing the load transfer. At the same time, the manipulator 1101 of the left-side drill string transfer device 11 moves to directly above the wellhead, and the lifting clamp 6 on the right-side trolley 4 and the manipulator 1101 of the left-side drill string transfer device 11 continue to move upward without stopping. Simultaneously, the upper uncoupling device 5 on the right side uncouples the drill string 10, disconnecting it from the uncoupling point. After uncoupling is completed or at the same time, the left-side chuck 6 opens, and the upper uncoupling device 5 and chuck 6 on the left-side trolley 4 move away from directly above the wellhead. The left-side trolley 4 decelerates and moves upward to its upper limit position before moving downward. At the same time, the manipulator 1101 of the drill string transfer device 11 on the left side firmly grasps the uncoupled drill string 10 and moves it from directly above the wellhead to the second-level platform 9 for storage. Meanwhile, the right-side trolley 4 continues to move upward towards the top of the derrick 2 without stopping.

[0056] Step 3a: The left trolley 4 moves to its lower limit position, and the manipulator 1101 of the drill string transfer device 11 on the right moves to its low position. The upper / lower coupling device 5 and the lifting clamp 6 on the left trolley 4 move to directly above the wellhead. Then, the left lifting clamp 6 attaches to the coupling at the lower end of the drill string 10, and the left lifting clamp 6 bears the load of the drill string 10, completing the load transfer. At the same time, the manipulator 1101 of the right drill string transfer device 11 moves to directly above the wellhead, and the lifting clamp 6 on the left trolley 4 and the manipulator 1101 of the right drill string transfer device 11 continue to move upward without stopping. Simultaneously, the upper uncoupling device 5 on the left side uncouples the drill string 10, disconnecting it from the uncoupling point. After uncoupling is completed or at the same time, the lifting clamp 6 on the right side opens, and the upper uncoupling device 5 and lifting clamp 6 on the right side trolley 4 move away from directly above the wellhead. The right side trolley 4 decelerates and moves upward to its upper limit position before moving downward. At the same time, the manipulator 1101 of the drill string transfer device 11 on the right side firmly grasps the uncoupled drill string 10 and moves it from directly above the wellhead to the second platform 9 for storage. Meanwhile, the left side trolley 4 continues to move upward towards the top of the derrick 2 without stopping.

[0057] Step 4a: Repeat steps 2a and 3a in sequence until the entire drilling process is completed.

[0058] Since the left and right sheaves 4 cooperate in steps 2a and 3a to make the drill string 10 move upward continuously, the continuous motion drilling rig and its working method can achieve continuous, uninterrupted and uniform drilling (drill string 10).

[0059] The drilling process includes the following steps:

[0060] Step 1b: The left trolley 4 moves to the upper position of the derrick 2, and the manipulator 1101 of the drill string transfer device 11 on the right moves the drill string 10 stored on the second platform 9 to directly above the wellhead. The upper and lower coupling device 5 and the lifting clamp 6 on the left trolley 4 move to directly above the wellhead. The left lifting clamp 6 hooks the coupling at the upper end of the drill string 10. Then, the manipulator 1101 of the right drill string transfer device 11 releases the gripped drill string 10 and moves away from directly above the wellhead. The left trolley 4 moves downward, and the drill string 10 enters the wellhead. The axis of the drill string 10 is basically coincident with the axis of the wellhead.

[0061] Step 2b: The right-side trolley 4 moves to its upper limit position. The manipulator 1101 of the drill string transfer device 11 on the left moves the drill string 10 stored on the second-level platform 9 to directly above the wellhead. The upper / lower coupling device 5 and the lifting clamp 6 on the right-side trolley 4 move to directly above the wellhead. The right-side lifting clamp 6 hooks onto the coupling at the upper end of the drill string 10. The manipulator 1101 of the left-side drill string transfer device 11 and the right-side lifting clamp 6 both accelerate downward. At the same time, the manipulator 1101 of the left-side drill string transfer device 11 releases its clamping state (the clamping mechanism is released). The drill string 10 hooked on the right-side lifting clamp 6 and the drill string 10 hooked on the left-side lifting clamp 6 are locked together vertically. Then, the right-side lifting clamp 6 moves along with the left-side lifting clamp. Simultaneously, the drill string 10 moves downwards, and the manipulator 1101 of the drill string transfer device 11 on the left releases the gripped drill string 10 and moves away from directly above the wellhead. At the same time, the upper and lower uncoupling device 5 on the left engages, connecting the upper and lower drill strings 10 into one unit. Then, the left-side chuck 6 accelerates downwards to disengage from the drill string 10 coupling, while the right-side chuck 6 bears the load, completing the load transfer. Subsequently, the left-side chuck 6 opens and continues to move downwards, while the upper and lower uncoupling device 5 and chuck 6 on the left-side trolley 4 move away from directly above the wellhead. The left-side trolley 4 decelerates downwards to its lower limit position and then moves upwards. Simultaneously, the right-side chuck 6 continues to move the drill string 10 towards the lower part of the derrick 2 without stopping. Figure 6 and Figure 7 As shown;

[0062] Step 3b: The left trolley 4 moves to its upper limit position. The manipulator 1101 of the drill string transfer device 11 on the right moves the drill string 10 stored on the second platform 9 to directly above the wellhead. The upper / lower coupling device 5 and the lifting clamp 6 on the left trolley 4 move to directly above the wellhead. The left lifting clamp 6 hooks onto the coupling at the upper end of the drill string 10. The manipulator 1101 of the right drill string transfer device 11 and the left lifting clamp 6 both accelerate downward. At the same time, the manipulator 1101 of the right drill string transfer device 11 releases its clamping state (clamping mechanism releases). The drill string 10 hooked on the left lifting clamp 6 and the drill string 10 hooked on the right lifting clamp 6 are aligned vertically. Then, the left lifting clamp 6 follows the right lifting clamp. Simultaneously, the drill string transfer device 11 on the right side moves downwards, while the robotic arm 1101 releases the gripped drill string 10 and moves away from directly above the wellhead. At the same time, the upper and lower uncoupling device 5 on the right side engages, connecting the upper and lower drill strings 10 into one unit. Then, the right-side chuck 6 accelerates downwards, disengaging from the drill string 10 coupling. The left-side chuck 6 bears the load, completing the load transfer. The right-side chuck 6 then opens and continues to move downwards. Simultaneously, the upper and lower uncoupling device 5 and chuck 6 on the right-side trolley 4 move away from directly above the wellhead. The right-side trolley 4 decelerates downwards to its lower limit position and then moves upwards. Meanwhile, the left-side chuck 6 continues to move the drill string 10 towards the lower part of the derrick 2 without stopping. Figure 6 and Figure 7 As shown;

[0063] Step 4b: Repeat steps 2b and 3b in sequence until the entire drilling process is completed.

[0064] Because the left and right sheaves 4 cooperate in steps 2b and 3b to make the drill string 10 move downward continuously, the continuous motion drilling rig and its working method can achieve continuous, uninterrupted and uniform drilling (drill string 10).

[0065] The working method of the continuous motion drilling rig also includes a drilling process, which includes the following steps:

[0066] After the drilling is completed, the top drive device 7 on the right-side pulley 4 extends and moves to a position directly above the wellhead. The top drive device 7 engages with the upper thread of the drill string 10, and then drilling continues downward. After drilling to the required depth for one drill string 10, the top drive device 7 on the right-side pulley 4 uncouples and retracts. The right-side chuck 6 attaches to the upper coupling of the drill string 10 at the wellhead to bear the weight of the drill string 10. The drill string transfer device 11 on the left grabs the next drill string 10, moves it to the center of the wellhead, and engages with the drill string 10 at the center of the wellhead. The right-side uncoupling device 5 engages. The uncoupling device 5 and chuck 6 on the left-side pulley 4 extend. The left-side chuck 6 attaches to the upper coupling of the drill string 10 at the wellhead to bear the weight of the drill string 10. The top drive device 7 on the left-side pulley 4 extends and engages with the drill string 10 at the wellhead, and then drilling continues downward. After the chuck 6 on the left trolley 4 bears the weight of the drill string 10, the top drive device 7, the upper uncoupling device 5, and the chuck 6 on the right trolley 4 all retract, moving away from directly above the wellhead. Then, the right trolley 4 moves upward along the guide rail 3 to the designated height, preparing for the drilling of the next drill string 10. Figure 8 As shown.

[0067] During the drilling process, a very short pause is required only when the drill string 10 is attached and unattached. In other processes, the alternating operation and mutual coordination of two sets of pulleys 4, top drive device 7, hoist 6, attachment and unattachment device 5, drill string transfer device 11, and winch lifting device 12 ensure that the entire oil drilling rig is basically in a continuous state of motion. The time consumed by the drilling rig from stopping to continuing drilling is significantly reduced compared to conventional drilling rigs.

[0068] The above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any substitution of equivalent components or equivalent changes and modifications made within the scope of protection of this patent should still fall within the scope of this patent. Furthermore, the technical features, technical features and technical solutions, and technical solutions in this invention can be freely combined and used.

Claims

1. A continuous motion drill rig characterized in that, The continuous motion drilling rig includes: Base (1); The derrick (2) is mounted on the base (1); Two sets of guide rails (3) are set on the left and right sides. The guide rails (3) are set on the derrick (2) and are in an upright state. Two trolleys (4) are set on the left and right sides, and the trolleys (4) are connected to the guide rails (3) one by one. The trolleys (4) can move up and down along the guide rails (3). The trolleys (4) are equipped with an upper uncoupling device (5), a lifting clamp (6) and a pushing device (8). The upper uncoupling device (5) is located directly above the lifting clamp (6). The pushing device (8) can make the upper uncoupling device (5) and the lifting clamp (6) move horizontally and be located synchronously or separately directly above or away from the wellhead. The pushing device (8) contains a first telescopic mechanism (801). The upper uncoupling device (5) is fixed relative to the lifting clamp (6). The lifting clamp (6) and the upper uncoupling device (5) are both connected to the first telescopic mechanism (801). The first telescopic mechanism (801) can extend and retract. The first telescopic mechanism (801) can also make the upper uncoupling device (5) and the hook (6) move synchronously in the horizontal direction. When the first telescopic mechanism (801) is in the extended state, the hook (6) and the upper uncoupling device (5) are both located directly above the wellhead. When the first telescopic mechanism (801) is in the retracted state, the hook (6) and the upper uncoupling device (5) are both away from directly above the wellhead. The trolley (4) is also equipped with a top drive device (7). The top drive device (7) is located above the upper uncoupling device (5). The pushing device (8) can move the top drive device (7) and make the top drive device (7) located directly above or away from directly above the wellhead. The top drive device (7) can clamp the drill string (10) and drive the drill string (10) to rotate. The second platform (9) is set on the derrick (2) and can store the drill string (10). Two sets of drill string transfer devices (11) are set on the left and right. The drill string transfer device (11) can move the drill string (10) in the horizontal direction. The drill string transfer device (11) can also move the drill string (10) up and down in the vertical direction. The drill string transfer device (11) can move the drill string (10) stored on the second platform (9) to the top of the wellhead. The drill string transfer device (11) can also move the drill string (10) at the top of the wellhead to the second platform (9) for storage. The trolley lifting drive system enables each trolley (4) to move up and down independently.

2. The continuous motion drill rig of claim 1, wherein, The base (1) includes an upper working panel (101), and the upper working panel (101) is provided with an inner through hole corresponding to the wellhead, the inner through hole being located directly above the wellhead.

3. The continuous motion drill rig of claim 1, wherein, The derrick (2) contains a left column (201), an upper beam (202) and a right column (203) connected from left to right. The guide rail (3) on the left side is connected to the left column (201), and the guide rail (3) on the right side is connected to the right column (203). The left column (201) and the right column (203) are located on the left and right sides of the wellhead, respectively. The upper beam (202) connects the top of the left column (201) and the top of the right column (203) into one unit.

4. The continuous motion drill rig of claim 1, wherein, The pushing device (8) also includes a second telescopic mechanism (802). The top drive device (7) is connected to the second telescopic mechanism (802). The second telescopic mechanism (802) can extend and retract. When both the first telescopic mechanism (801) and the second telescopic mechanism (802) are in the extended state, the top drive device (7) is located directly above the wellhead. When the first telescopic mechanism (801) and the second telescopic mechanism (802) are in the retracted state, the top drive device (7) is away from directly above the wellhead.

5. The continuous motion drilling rig according to claim 1, characterized in that, The drill string transfer device (11) includes a manipulator (1101), a column (1102) and a column rotation drive mechanism connected in sequence. The left column (1102) and the right column (1102) are located on the left and right sides of the wellhead, respectively. The manipulator (1101) can move the drill string (10) in the horizontal direction and can also move the drill string (10) up and down.

6. The continuous motion drilling rig according to claim 1, characterized in that, The pulley lifting drive system includes two winch lifting devices (12) arranged on the left and right. The winch lifting device (12) includes a winch (1201), a crane (1202) and a rope (1204). The winch (1201) is fixed on the base (1), the crane (1202) is fixed on the top of the derrick (2), and the rope (1204) passes around the crane (1202) and the pulley (4) in sequence. One end of the rope (1204) is connected to the winch (1201), and the other end of the rope (1204) is connected to the derrick (2) or the base (1). The winch (1201) can move the pulley (4) up and down by raising and lowering the rope (1204).

7. The continuous motion drilling rig according to claim 1, characterized in that, The pulley lifting drive system includes two winch lifting devices (12) arranged on the left and right. The winch lifting device (12) includes a winch (1201), a crane (1202), a traveling block (1203) and a rope (1204). The winch (1201) is fixed on the base (1), the crane (1202) is fixed on the top of the derrick (2), and the traveling block (1203) is located between the pulley (4) and the crane (1202). The traveling block (1203) is connected to the pulley (4) one by one. The rope (1204) passes around the crane (1202) and the traveling block (1203) in sequence. One end of the rope (1204) is connected to the winch (1201), and the other end of the rope (1204) is connected to the derrick (2) or the base (1). The winch (1201) can move the pulley (4) up and down by raising and lowering the rope (1204).

8. A method for operating a continuously moving drilling rig, characterized in that, The working method of the continuous motion drilling rig adopts the continuous motion drilling rig according to any one of claims 1 to 7, and the working method of the continuous motion drilling rig includes one or more of the drilling start-up process, drilling start-up process, and drilling process; The drilling process includes the following steps: Step 1a: The left trolley (4) moves to the lower limit position of the trolley, and the upper uncoupling device (5) and the jack (6) on the left trolley (4) move to the top of the wellhead. Then the left jack (6) hangs the coupling at the top of the drill string (10), and the left trolley (4) moves from the lower limit position of the trolley to the upper part of the derrick (2). The drill string (10) moves upward with the left trolley (4). Step 2a: The right-side trolley (4) moves to its lower limit position, and the manipulator (1101) of the drill string transfer device (11) on the left moves to its low position. The upper and lower coupling device (5) and the lifting clamp (6) on the right-side trolley (4) move to directly above the wellhead. Then, the right-side lifting clamp (6) attaches to the coupling at the lower end of the drill string (10), and the right-side lifting clamp (6) bears the load of the drill string (10), completing the load transfer. At the same time, the manipulator (1101) of the left-side drill string transfer device (11) moves to directly above the wellhead, and the lifting clamp (6) on the right-side trolley (4) and the manipulator (1101) of the left-side drill string transfer device (11) continue to move upward without stopping. While moving, the upper uncoupling device (5) on the right side uncouples the drill string (10), disconnecting the drill string (10) from the uncoupling point; after uncoupling is completed or at the same time as uncoupling, the left side chuck (6) opens, and the upper uncoupling device (5) and chuck (6) on the left side trolley (4) move away from directly above the wellhead. The left side trolley (4) decelerates and moves upward to the upper limit position of the trolley and then moves downward. At the same time, the manipulator (1101) of the drill string transfer device (11) on the left side grabs the uncoupled drill string (10) and moves the uncoupled drill string (10) from directly above the wellhead to the second platform (9) for storage; at the same time, the right side trolley (4) continues to move towards the upper part of the derrick (2) without stopping. Step 3a: The left trolley (4) moves to its lower limit position, and the manipulator (1101) of the drill string transfer device (11) on the right moves to its low position. The upper and lower coupling device (5) and the lifting clamp (6) on the left trolley (4) move to directly above the wellhead. Then, the left lifting clamp (6) attaches to the coupling at the lower end of the drill string (10), and the left lifting clamp (6) bears the load of the drill string (10), completing the load transfer. At the same time, the manipulator (1101) of the drill string transfer device (11) on the right moves to directly above the wellhead, and the lifting clamp (6) on the left trolley (4) and the manipulator (1101) of the right drill string transfer device (11) continue to move upward without stopping. While moving, the upper uncoupling device (5) on the left side uncouples the drill string (10), disconnecting the drill string (10) from the uncoupling point; after the uncoupling is completed or at the same time as the uncoupling, the chuck (6) on the right side opens, and the upper uncoupling device (5) and chuck (6) on the right side trolley (4) move away from directly above the wellhead. The right side trolley (4) decelerates and moves upward to the upper limit position of the trolley and then moves downward. At the same time, the manipulator (1101) of the drill string transfer device (11) on the right side grabs the uncoupled drill string (10) and moves the uncoupled drill string (10) from directly above the wellhead to the second platform (9) for storage; at the same time, the trolley (4) on the left side continues to move towards the upper part of the derrick (2) without stopping. Step 4a: Repeat steps 2a and 3a in sequence until the entire drilling process is completed; The drilling process includes the following steps: Step 1b: The left trolley (4) moves to the upper position of the derrick (2), and the manipulator (1101) of the drill string transfer device (11) on the right moves the drill string (10) stored on the second platform (9) to the top of the wellhead. The upper and lower coupling device (5) and the lifting clamp (6) on the left trolley (4) move to the top of the wellhead. The left lifting clamp (6) hangs on the coupling at the upper end of the drill string (10). Then the manipulator (1101) of the drill string transfer device (11) on the right releases the gripped drill string (10) and moves away from the top of the wellhead. The left trolley (4) moves downward and the drill string (10) enters the wellhead. Step 2b: The right trolley (4) moves to its upper limit position. The manipulator (1101) of the drill string transfer device (11) on the left moves the drill string (10) stored on the second platform (9) to directly above the wellhead. The upper and lower coupling device (5) and the lifting clamp (6) on the right trolley (4) move to directly above the wellhead. The right lifting clamp (6) hooks onto the coupling at the upper end of the drill string (10). The manipulator (1101) of the drill string transfer device (11) on the left and the right lifting clamp (6) both accelerate downward. At the same time, the manipulator (1101) of the drill string transfer device (11) on the left releases its clamping state. The drill string (10) hooked on the right lifting clamp (6) and the drill string (10) hooked on the left lifting clamp (6) are locked together. Then the right lifting clamp (6) moves along with the left lifting clamp. (6) Simultaneously move downwards, while the manipulator (1101) of the drill string transfer device (11) on the left releases the gripped drill string (10) and moves away from directly above the wellhead. At the same time, the upper and lower uncoupling device (5) on the left engages, connecting the upper and lower drill strings (10) into one unit. Then, the left jack (6) accelerates downwards to disengage from the coupling of the drill string (10), and the right jack (6) bears the load and completes the load transfer. Then, the left jack (6) opens and continues to move downwards. At the same time, the upper and lower uncoupling device (5) and the jack (6) on the left trolley (4) move away from directly above the wellhead. The left trolley (4) decelerates downwards to the lower limit position of the trolley and then moves upwards. At the same time, the right jack (6) continues to move the drill string (10) towards the lower part of the derrick (2) without stopping. Step 3b: The left trolley (4) moves to its upper limit position. The manipulator (1101) of the drill string transfer device (11) on the right moves the drill string (10) stored on the second platform (9) to directly above the wellhead. The upper and lower coupling device (5) and the lifting clamp (6) on the left trolley (4) move to directly above the wellhead. The left lifting clamp (6) hooks onto the coupling at the upper end of the drill string (10). The manipulator (1101) of the right drill string transfer device (11) and the left lifting clamp (6) both accelerate downward. At the same time, the manipulator (1101) of the right drill string transfer device (11) releases its clamping state. The drill string (10) hooked on the left lifting clamp (6) and the drill string (10) hooked on the right lifting clamp (6) are locked together. Then the left lifting clamp (6) moves along with the right lifting clamp. (6) Simultaneously move downwards, while the manipulator (1101) of the drill string transfer device (11) on the right releases the gripped drill string (10) and moves away from directly above the wellhead. At the same time, the upper and lower uncoupling device (5) on the right engages, connecting the upper and lower drill strings (10) into one unit. Then, the right-side chuck (6) accelerates downwards to disengage from the coupling of the drill string (10), and the left-side chuck (6) bears the load and completes the load transfer. Then, the right-side chuck (6) opens and continues to move downwards. At the same time, the upper and lower uncoupling device (5) and the chuck (6) on the right-side trolley (4) move away from directly above the wellhead. The right-side trolley (4) decelerates downwards to the lower limit position of the trolley and then moves upwards. Meanwhile, the left-side chuck (6) continues to move the drill string (10) towards the lower part of the derrick (2) without stopping. Step 4b: Repeat steps 2b and 3b in sequence until the entire drilling process is completed; The drilling process includes the following steps: After the drilling is completed, the top drive device (7) on the right trolley (4) extends and moves to a position directly above the wellhead. The top drive device (7) and the upper thread of the drill string (10) are engaged, and then drilling continues downward. After the drilling depth of one drill string (10) is completed, the top drive device (7) on the right trolley (4) is uncoupled and retracted. The right-side clamp (6) is attached to the upper end coupling of the drill string (10) at the wellhead to bear the weight of the drill string (10). The drill string transfer device (11) on the left grabs the next drill string (10), moves it to the center of the wellhead and engages it with the drill string (10) at the center of the wellhead. The upper uncoupling device (5) on the right completes the upper coupling. The upper uncoupling device (5) and the chuck (6) on the side trolley (4) extend out, and the chuck (6) on the left side hangs on the upper end coupling of the drill string (10) at the wellhead to bear the weight of the drill string (10). The top drive device (7) on the left trolley (4) extends out and engages with the drill string (10) at the wellhead, and then continues to drill downward. After the chuck (6) on the left trolley (4) bears the weight of the drill string (10), the top drive device (7), upper uncoupling device (5) and chuck (6) on the right trolley (4) retract and move away from directly above the wellhead. Then the right trolley (4) moves upward along the guide rail (3) to the designated height, ready for the drilling of the next drill string (10).

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