Integrated pipe column automatic conveying system and method

Abstract

The invention discloses an integrated pipe column automatic conveying system and method. The integrated pipe column automatic conveying system comprises a power catwalk parallel to a drill floor face of a drill floor and a power mouse hole perpendicular to the drill floor face of the drill floor. The power catwalk comprises a fixing seat, a turnover arm and a turnover cylinder, the fixing seat is placed on the ground on one side of the drill floor, the turnover arm is connected with the fixing seat through a rotating shaft, one end of the turnover cylinder is installed on the fixing seat, the other end of the turnover cylinder is connected with the turnover arm, and a catwalk centralizing hand is arranged on the turnover arm and used for clamping a pipe column. The power mouse hole comprises a support connected with the fixing base, a driving cylinder arranged on the support, a connecting rod mechanism with one end connected with the driving cylinder and a mouse hole righting hand connected with the other end of the connecting rod mechanism, and when the overturning arm rotates to the vertical state, the mouse hole righting hand clamps the pipe column on the overturning arm. The pipe column is conveyed to the power rat hole through the power catwalk, the top drive takes and places the pipe column from the power rat hole, and the problems that the pipe column conveying efficiency is low and full automation is difficult are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling and repairing equipment in oil and gas production, and more specifically, to an integrated automatic pipe string conveying system and method. Background Art

[0002] With the increasing maturity of automation technology of drill and workover equipment, automatic pipe conveying devices have gradually become standard configurations of drill and workover machines. Automatic pipe conveying requires the realization of automated sequential control of multiple devices, reducing the frequency of operations by operators, reducing human intervention in the operation process, and improving operational reliability.

[0003] There are two main types of existing automatic pipe conveying devices: 1. Use a power catwalk to convey the pipe to the drilling floor, and the top drive and the power catwalk cooperate to complete the pipe conveyance from the drilling floor to the wellhead; 2. Flip the pipe from the horizontal position on the ground to the center of the wellhead for buckling and buckling.

[0004] The main problems of the existing technology are as follows: 1. The pipe string transportation needs to be coordinated with the top drive, which requires two people to operate, takes a long time for the top drive, and the efficiency of the drilling and repair machine to pull out the pipe string is low; 2. When the pipe string is transported to the center of the wellhead, the pipe strings of different weights have a great influence on the position accuracy of the conveying device, and it is difficult to buckle the upper and lower ends of the pipe string. There are many cases of human intervention, the efficiency of pulling out the pipe string is low, and it is difficult to achieve full automation of pipe string transportation. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated automatic pipe string conveying system and method, in which a power catwalk conveys the pipe string to a power mousehole, and a top drive takes and places the pipe string from the power mousehole, thereby solving the problems of low pipe string conveying efficiency and difficulty in full automation.

[0006] The technical solution adopted by the present invention to solve this technical problem is: providing an integrated pipe string automatic conveying system, including a power catwalk arranged parallel to the drilling floor surface of the drilling floor and a power mouse hole arranged perpendicular to the drilling floor surface of the drilling floor; The power catwalk includes a fixed seat, a flip arm and a flip cylinder. The fixed seat is placed on the ground on one side of the drilling platform. The flip arm is connected to the fixed seat through a rotating shaft. One end of the flip cylinder is installed on the fixed seat, and the other end is connected to the flip arm. The flip cylinder drives the flip arm to rotate 90° around the rotating shaft. The flip arm is provided with a catwalk righting hand, which is used to clamp the pipe column. The catwalk righting hand is provided with a righting cylinder, which drives the catwalk righting hand to open and close; The power rathole includes a bracket connected to a fixed seat, a driving cylinder arranged on the bracket, a connecting rod mechanism connected to the driving cylinder at one end, and a rathole straightening hand connected to the other end of the connecting rod mechanism. The driving cylinder drives the opening and closing of the rathole straightening hand through the connecting rod mechanism. When the flip arm rotates to a vertical state, the rathole straightening hand clamps the pipe column on the flip arm to complete the automatic transportation of the pipe column.

[0007] Preferably, in the integrated automatic pipe string conveying system, a support is provided on the flip arm, the support supports the bottom of the pipe string, and a seat plate is provided at the lower part of the bracket, the seat plate supports the lower end of the pipe string; A slot is provided in the middle of the seat plate, and the width of the bracket is smaller than the width of the slot.

[0008] Preferably, in the integrated pipe column automatic conveying system, the power catwalk also includes an adjustment cylinder, one end of which is mounted on the flip arm and the other end is connected to the bracket, and the adjustment cylinder pushes the bracket to slide on the flip arm.

[0009] Preferably, in the integrated automatic pipe conveying system, the fixing seat is composed of a cross bar placed on the ground at one side of the drilling platform and a vertical bar perpendicular to one end of the cross bar to form an "L"-shaped structure, and the rotating shaft is arranged at the corner of the fixing seat.

[0010] Preferably, in the integrated pipe column automatic conveying system, the bracket and the vertical rod are connected by a double pin.

[0011] Preferably, in the integrated pipe string automatic conveying system, the catwalk righting hands are provided with two sets, the two sets of catwalk righting hands are evenly distributed on the flip arm, and each set of catwalk righting hands is driven by a righting cylinder; The mouse hole straightening hand, the driving cylinder and the connecting rod mechanism form a group, and two groups are provided in total, and the two groups are respectively arranged at the upper part and the lower part of the bracket.

[0012] The present invention also provides an integrated pipe string automatic conveying method, comprising the following steps: S1: The catwalk uprighting handle is opened, the pipe string is placed on the flip arm, the adjustment cylinder is operated to retract, the position of the pipe string on the flip arm is adjusted, and the catwalk uprighting handle is closed to limit the left and right movement of the pipe string; S2: The rat hole righting handle is opened, and the flip cylinder is operated to drive the flip arm to rotate, and the flip arm carries the pipe column and flips it from a horizontal position to a vertical position; S3: Operate the adjustment cylinder to extend, drive the support seat to move down to the bottom of the seat plate, move the pipe column down and support it on the seat plate of the power mouse hole, and close the mouse hole straightening hand; S4: Open the catwalk uprighting hand, flip the flip arm from the vertical position to the horizontal position, and repeat the delivery of the next pipe string.

[0013] The present invention has at least the following beneficial effects: 1. The pipe transportation does not occupy the working time of the top drive, and the drilling and workover machine has high efficiency in tripping and lowering the pipe.

[0014] 2. The pipe string is always connected with the top drive at the rathole position. The top drive, lifting ring and power elevator have high repeat positioning accuracy, which makes it easy to realize full automation of pipe string transportation.

[0015] 3. The power catwalk and power mouse hole are transported in an integrated manner, which is convenient for installation and disassembly.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a construction drawing of an integrated pipe string automatic conveying system; Figure 2 It is a structural diagram of a power catwalk in an integrated pipe string automatic conveying system; Figure 3 It is a schematic diagram of the AA structure in the power catwalk in an integrated pipe string automatic conveying system; Figure 4 It is a front view of a power mouse hole in an integrated pipe string automatic conveying system; Figure 5 A side view of a power mousehole in an integrated pipe string automatic conveying system; Figure 6 It is a construction schematic diagram of step S1 in an integrated pipe string automatic transportation method; Figure 7 A construction schematic diagram of step S2 in an integrated pipe string automatic transportation method; Figure 8 A construction schematic diagram of step S3 in an integrated pipe string automatic transportation method; Fig. 9 A construction schematic diagram of step S4 in an integrated pipe string automatic transportation method; Fig.10 It is a schematic diagram of the integrated transportation state of a power catway and a power mousehole in an integrated pipe string automatic transportation system; Explanation of the accompanying drawings: 1. Power catwalk, 11. Fixed seat, 111. Cross bar, 112. Vertical bar, 12. Flip cylinder, 13. Rotating shaft, 14. Flip arm, 15. Support seat, 16. Adjustment cylinder, 17. Catwalk righting handle, 18. Righting cylinder, 2. Power rathole, 21. Bracket, 22. Rathole righting handle, 23. Driving cylinder, 24. Connecting rod mechanism, 25. Seat plate, 26. Notch 3. Pipe string, 4. Drilling table, 5. Derrick, 6. Top drive, 7. Lifting ring, 8. Power elevator. DETAILED DESCRIPTION

[0018] The present invention is described in detail and completely below in conjunction with the accompanying drawings. A person of ordinary skill in the art will be able to implement the present invention based on these descriptions. Before describing the present invention in conjunction with the accompanying drawings, it should be particularly pointed out that the technical solutions and technical features provided in each part of the present invention, including the following description, can be combined with each other without conflict.

[0019] In addition, the embodiments of the present invention involved in the following description are generally only a part of the embodiments of the present invention, rather than all the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, and its specific implementation process is as follows: like Figure 1-10 As shown, the present invention provides an integrated pipe string automatic conveying system, including a power catwalk 1 arranged parallel to a drilling floor surface 4 of a drilling floor and a power mouse hole 2 arranged perpendicular to the drilling floor surface 4 of the drilling floor; The power catwalk 1 comprises a fixed seat 11, a flip arm 14 and a flip cylinder 12. The fixed seat 11 is placed on the ground at one side of the drilling platform. The flip arm 14 is connected to the fixed seat 11 through a rotating shaft 13. One end of the flip cylinder 12 is installed on the fixed seat 11, and the other end is connected to the flip arm 14. The flip arm 14 is driven to rotate 90° around the rotating shaft 13 by the telescopic action of the flip cylinder 12. A catwalk righting hand 17 is provided on the flip arm 14. The catwalk righting hand 17 is used to clamp the pipe column 3. A righting cylinder 18 is provided on the catwalk righting hand 17. The righting cylinder 18 drives the catwalk righting hand 17 to open and close. The power rathole 2 includes a bracket 21 connected to the fixed seat 11, a driving cylinder 23 arranged on the bracket 21, a connecting rod mechanism 24 connected to the driving cylinder 23 at one end, and a rathole straightening hand 22 connected to the other end of the connecting rod mechanism 24. The driving cylinder 23 drives the opening and closing of the rathole straightening hand 22 through the connecting rod mechanism 24. When the flip arm 14 rotates to a vertical state, the rat hole straightening hand 22 clamps the pipe column 3 on the flip arm 14 to complete the automatic transportation of the pipe column 3.

[0021] Furthermore, in the integrated pipe column automatic conveying system, the flip arm 14 is provided with a support 15, the support 15 supports the bottom of the pipe column 3, and the lower part of the bracket 21 is provided with a seat plate 25, the seat plate 25 supports the lower end of the pipe column 3; A slot 26 is disposed in the middle of the seat plate 25 , and the width of the bracket 15 is smaller than the width of the slot 26 , so that the bracket 15 can pass through the slot 26 .

[0022] In this embodiment, a preferred implementation scheme is that the lower portion of the pipe column 3 is a conical structure, and the maximum diameter of the pipe column 3 is larger than the width of the slot 26 , so that the seat plate 25 can support the lower end of the pipe column 3 .

[0023] Furthermore, in the integrated pipe column automatic conveying system, the power catwalk 1 also includes an adjustment cylinder 16, one end of the adjustment cylinder 16 is installed on the flip arm 14, and the other end is connected to the bracket 15. The adjustment cylinder 16 pushes the bracket 15 to slide on the flip arm 14, so as to adjust the position of the pipe column 3 in the flip arm 14.

[0024] Furthermore, in the integrated pipe automatic conveying system, the fixed seat 11 is composed of a horizontal bar 111 placed on the ground on one side of the drilling platform and a vertical bar 112 perpendicular to one end of the horizontal bar 111 to form an "L"-shaped structure, and the rotating shaft 13 is arranged at the corner of the fixed seat 11, so that the flip arm 14 can be closely attached to the power mouse hole 2 after rotating to a vertical state.

[0025] Furthermore, in the integrated pipe column automatic conveying system, the bracket 21 is connected to the vertical rod 112 by a double pin, such as Fig.10 As shown, the bracket 21 and the vertical rod 112 are connected by double pins to enable the power mouse hole 2 to be flipped to a horizontal position. The power mouse hole 2 and the power catwalk 1 are integrated for transportation. After being transported to the designated location, the power mouse hole 2 can be rotated to a vertical position by a crane.

[0026] Furthermore, in the integrated pipe string automatic conveying system, the catwalk righting hands 17 are provided with two sets, and the two sets of catwalk righting hands 17 are evenly distributed on the flip arm 14, so as to achieve a better clamping effect, and each set of catwalk righting hands 17 is driven by a righting cylinder 18; The rat hole straightening handle 22, the driving cylinder 23 and the connecting rod mechanism 24 are a group, and two groups are provided, and the two groups are respectively provided at the upper part and the lower part of the bracket 21. The upper and lower driving cylinders 23 drive the upper and lower rat hole straightening handles 22 to open and close through the upper and lower connecting rod mechanisms 24 respectively.

[0027] The present invention also provides an integrated pipe string automatic conveying method, comprising the following steps: S1: The catwalk uprighting handle 17 is opened, the pipe string 3 is placed on the flip arm 14, the adjustment cylinder 16 is operated to retract, the position of the pipe string 3 on the flip arm 14 is adjusted, and the catwalk uprighting handle 17 is closed to limit the left and right movement of the pipe string 3; S2: The mouse hole straightening handle 22 is opened, and the flip cylinder 12 is operated to drive the flip arm 14 to rotate, and the flip arm 14 carries the pipe column 3 and flips it from the horizontal position to the vertical position; S3: operate the adjustment cylinder 16 to extend, drive the bracket 15 to move down to below the seat plate 25, the pipe column 3 moves down and is supported on the seat plate 25 of the power mouse hole 2, and close the mouse hole straightening handle 22; S4: Open the catwalk uprighting handle 17, and the flip arm 14 flips from the vertical position to the horizontal position, and repeats the transportation of the next pipe string 3.

[0028] In this embodiment, a preferred solution is that a derrick 5 is provided on the drilling floor 4, a top drive 6 is provided on the derrick 5, a lifting ring 7 is provided on the top drive 6, and a power elevator 8 is connected to one end of the lifting ring 7. The power elevator 8 is used to automatically grab the pipe string 3 transported by the integrated pipe string automatic transportation system, so as to complete the subsequent lifting of the pipe string 3.

[0029] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. An integrated automatic pipe string conveying system, characterized in that: It includes a power catwalk arranged parallel to the drilling surface of the drilling platform and a power mouse hole arranged perpendicular to the drilling surface of the drilling platform; The power catwalk includes a fixed seat, a flip arm and a flip cylinder. The fixed seat is placed on the ground on one side of the drilling platform. The flip arm is connected to the fixed seat through a rotating shaft. One end of the flip cylinder is installed on the fixed seat, and the other end is connected to the flip arm. The flip cylinder drives the flip arm to rotate 90° around the rotating shaft. The flip arm is provided with a catwalk righting hand, which is used to clamp the pipe column. The catwalk righting hand is provided with a righting cylinder, which drives the catwalk righting hand to open and close; The power rathole includes a bracket connected to a fixed seat, a driving cylinder arranged on the bracket, a connecting rod mechanism connected to the driving cylinder at one end, and a rathole straightening hand connected to the other end of the connecting rod mechanism. The driving cylinder drives the opening and closing of the rathole straightening hand through the connecting rod mechanism. When the flip arm rotates to a vertical state, the rathole straightening hand clamps the pipe column on the flip arm to complete the automatic transportation of the pipe column.

2. The integrated pipe string automatic conveying system according to claim 1, characterized in that: The flip arm is provided with a support seat, which supports the bottom of the pipe column, and the lower part of the bracket is provided with a seat plate, which supports the lower end of the pipe column; A slot is provided in the middle of the seat plate, and the width of the bracket is smaller than the width of the slot.

3. The integrated automatic pipe string conveying system according to claim 2, characterized in that: The power catwalk also includes an adjusting cylinder, one end of which is installed on the flip arm and the other end is connected to the bracket. The adjusting cylinder pushes the bracket to slide on the flip arm.

4. The integrated automatic pipe string conveying system according to claim 1, characterized in that: The fixing seat is composed of a horizontal bar placed on the ground at one side of the drilling platform and a vertical bar perpendicular to one end of the horizontal bar to form an "L"-shaped structure, and the rotating shaft is arranged at the corner of the fixing seat.

5. The integrated automatic pipe string conveying system according to claim 4, characterized in that: The bracket is connected to the vertical rod through a double pin.

6. The integrated pipe string automatic conveying system according to claim 1, characterized in that: The catwalk righting hands are provided with two sets, and the two sets of catwalk righting hands are evenly distributed on the turning arm, and each set of catwalk righting hands is driven by a righting cylinder; The mouse hole straightening hand, the driving cylinder and the connecting rod mechanism form a group, and two groups are provided in total, and the two groups are respectively arranged at the upper part and the lower part of the bracket.

7. An automatic conveying method using the integrated pipe string as claimed in claims 1 to 6, characterized in that: The steps include: S1: The catwalk uprighting handle is opened, the pipe string is placed on the flip arm, the adjustment cylinder is operated to retract, the position of the pipe string on the flip arm is adjusted, and the catwalk uprighting handle is closed to limit the left and right movement of the pipe string; S2: The rat hole righting handle is opened, and the flip cylinder is operated to drive the flip arm to rotate, and the flip arm carries the pipe column and flips it from a horizontal position to a vertical position; S3: Operate the adjustment cylinder to extend, drive the support seat to move down to the bottom of the seat plate, move the pipe column down and support it on the seat plate of the power mouse hole, and close the mouse hole straightening hand; S4: Open the catwalk uprighting hand, flip the flip arm from the vertical position to the horizontal position, and repeat the delivery of the next pipe string.

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