CN202673195U - Device for connecting drill pipes with three-joint unit - Google Patents

Abstract

The utility model discloses a device for connecting vertical roots of drilling rods. A vertical root frame is fixedly installed beside the ramp of the drilling rig gate, and a hydraulic tong, a righting chuck, a lifting block, and a suspension chuck are installed in the vertical root frame; A catwalk is fixedly installed on the ground next to the front ramp of the stand frame, and a lifting manipulator is installed in the catwalk; a second-story platform is installed on the derrick of the drilling rig, and an automatic derrick is installed suspended below it. The utility model also discloses a method of using the device to connect the drill pipe to the stand. The above-mentioned device is used to realize the mechanized operation of the drill pipe transportation and the whole process of connecting the stand, and the drill pipe is put on the drill floor and connected to the stand without occupying the top drive and the wellhead. Tools save time and improve drilling efficiency; at the same time, workers are not required to work in dangerous areas, reducing labor intensity and avoiding personal accidents.

Description

A device for connecting drill pipes to vertical roots

technical field

The utility model belongs to the technical field of oil drilling equipment and relates to a device for connecting a drill pipe to a vertical root.

Background technique

At present, the general method of connecting the drill pipe to the vertical root when drilling is: use the pneumatic winch to drag the drill pipe from the catwalk along the ramp of the gate to the drill floor, and rely on the cooperation of the small wind winch and the hydraulic tongs in the mouse hole to lift the single stand. The connection is a vertical root, and then rely on the force of the second-floor derrick worker to discharge the drill pipe vertical root into the finger beam. The above-mentioned operation method seriously damages the drill pipe when it is going up and down the drill floor, and requires the cooperation of multiple people to complete it. The labor intensity of the workers is high, and it is easy to interfere with the top drive during the operation, which may cause equipment damage or personal casualties.

Contents of the invention

The purpose of the utility model is to provide a device for connecting a drill pipe to a vertical root, which solves the problems of low efficiency, high risk, and high labor intensity when a single drill pipe is connected to a vertical root.

The technical solution adopted by the utility model is, a device for connecting the vertical root of the drill pipe, the vertical root frame is fixedly installed on the front side of the drill floor of the drilling rig, and next to the gate ramp, and is fixedly installed on the ground beside the front ramp of the vertical root frame There is a catwalk, and a lifting manipulator is installed in the catwalk; erecting chucks, hydraulic tongs, lifting blocks and suspension chucks are installed in the vertical frame; a second-level platform is installed on the derrick of the drilling rig, and the second-level platform is installed below the platform. The suspension is equipped with an automatic derrick.

The beneficial effect of the utility model is that it significantly improves the operation efficiency of standing roots, and greatly reduces the labor intensity of workers; reduces the number of operators on the drilling floor and the second floor platform, reduces the labor cost of drilling operations, and improves the operation safety; the whole set of devices is powerful, and only Only one assistant driller is required to operate on the console to complete the whole erection operation, and discharge the erection into the second-floor platform finger beam.

Description of drawings

Fig. 1 is the structural elevation schematic diagram of the drill pipe connecting stand device of the present utility model;

Fig. 2 is a schematic top view of the structure of the drill pipe erecting device of the present invention;

Fig. 3 is one of the operating flow diagrams of the drilling pipe erecting method of the present utility model;

Fig. 4 is the second of the operation flow chart of the drilling pipe erecting method of the utility model;

Fig. 5 is the third operation flow chart of the drill pipe erecting method of the utility model;

Fig. 6 is the fourth operation flow chart of the drilling pipe erecting method of the utility model;

Fig. 7 is the fifth of the operation flow chart of the drilling pipe erecting method of the present utility model;

Fig. 8 is the sixth of the operating flow chart of the drilling pipe erecting method of the present utility model;

Fig. 9 is the seventh of the operating flow chart of the drilling pipe erecting method of the utility model;

Fig. 10 is the eighth of the operating flow chart of the drill pipe connecting vertical root method of the present utility model;

Fig. 11 is the ninth operation flow chart of the drilling pipe erecting method of the present invention.

In the figure, 1. Catwalk, 2. Lifting manipulator, 3. Electro-hydraulic control system, 4. Uprighting chuck, 5. Lifting block, 6. Hydraulic tongs, 7. Standing frame, 8. Suspension chuck, 9. Automatic derrick, 10. Two-story platform.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1 and Fig. 2, the erection device structure of the present utility model is that an erection frame 7 is fixedly installed on the front side of the drill floor of the drilling rig and beside the gate ramp, and on the ground beside the front ramp of the erection frame 7 (foundation surface) a catwalk 1 is fixedly installed, and a lifting manipulator 2 is installed in the catwalk 1; a straightening chuck 4 for straightening a single drill pipe, and a hydraulic clamp for twisting or fastening are installed in the stand frame 7 Clamp 6, the hoisting block 5 that is used to lift drill pipe and the suspension chuck 8 of drill pipe; A two-story platform 10 is installed on the derrick of the drilling rig, and an automatic derrick worker 9 is suspended and installed below the two-story platform 10.

Righting chuck 4, hydraulic tongs 6, lifting block 5 and suspension chuck 8 are all installed in the stand frame 7, and they cooperate with each other to be used to connect the single root of the drilling rod as a stand.

The lifting manipulator 2, the righting chuck 4, the lifting block 5, the hydraulic tongs 6 and the suspension chuck 8 are all connected with the electro-hydraulic control system 3, which is integrated in the hydraulic station on the ground and accepts unified control.

The automatic derrick worker 9 is suspended below the second floor platform 10, and is used for lifting the vertical root from the vertical root frame 7 to the required position (in the second floor platform finger beam or wellhead) for drilling operations.

The actuators of the above components (lifting manipulator 2, righting chuck 4, lifting block 5, hydraulic tongs 6, suspension chuck 8 and automatic derrick 9) are all equipped with position sensors for position detection or limit Control, and use the electro-hydraulic control system 3 to programmably control the actions of the various components in the device, with a safety interlock function.

The utility model device comprises the following steps when carrying out the operation of connecting the drill pipe to the vertical root:

Step 1. Single ground transmission: Put or roll the drill pipe into the jaws of the lifting manipulator 2 in the middle of the catwalk 1. After clamping, the lifting manipulator 2 lifts the drill pipe under the action of the oil cylinder, and the single drill pipe The rod stands upright in the stand frame 7 (seeing figure 3).

Step 2. Connect the vertical root: the lifting block 5 in the vertical root frame 7 goes down, and after the lifting block 5 clamps the drill pipe firmly, the lifting manipulator 2 retreats away from the drill pipe (as shown in Figure 4); the lifting block 5 goes up about a single drill the height of the rod so that the lower end of the drill rod rises to the height of the hydraulic tongs 6 (as shown in Figure 5); after the lifting manipulator 2 lifts the second drill rod and erects the second drill rod in the stand frame 7, the block is lifted 5. Execute the first drill pipe to make a good buckle with it. After the hydraulic tongs 6 move forward to respectively clamp the lower and upper joints of the upper and lower drill pipes, the lifting manipulator 2 backs away from the second drill pipe and straightens the chuck. 4 Right the second drill pipe, connect the second drill pipe with the first drill pipe through the hydraulic tongs 6 (as shown in Figure 6); then loosen the righting chuck 4 and the hydraulic tongs 6, and lift the block 5 to continue Lift the combined two drill pipes to about a single height, so that the lower end of the second drill pipe rises to the height of the hydraulic tongs 6 (as shown in Figure 7); the lifting manipulator 2 lifts the third drill pipe and lifts the second After the three drill pipes stand upright in the stand frame 7, the second drill pipe and the third drill pipe are combined and fastened by lifting the block 5, and the hydraulic tongs 6 move forward to hold the two drill pipes (the second drill pipe respectively). After the lower and upper joints of the combination of the first drill pipe and the third drill pipe), the lifting manipulator 2 retreats away from the third drill pipe, and the righting chuck 4 straightens the third drill pipe. The three drill pipes are combined with the first two drill pipes, and the third single connection is completed, and the entire vertical root connection is completed (as shown in Figure 8); the connected vertical root is clamped by the suspension chuck 8, and the pulley is lifted by 5 clamps Loosen the claws, go down about a single height and then clamp the vertical root (as shown in Figure 9); after lifting the block 5 to clamp the vertical root, lift the entire vertical root above the drill floor, and the upper end of the entire vertical root is close to the height of the second floor platform 10, so that The automatic derrick worker 9 that is installed under the platform 10 on the second floor grabs (as shown in Figure 10).

Step 3. Pipe stand transmission: the automatic derrick worker 9 grabs the connected vertical root on the top of the vertical root frame 7, and after lifting the block 5 to release the claws, the automatic derrick worker 9 transfers the vertical root to the required position (the second-floor platform refers to the inside of the beam or the wellhead) for drilling operations (as shown in Figure 11).

The step of getting the drill pipe down the drill floor is opposite to the above-mentioned steps.

Compared with the existing conventional manual operation method, the drill pipe erecting method of the utility model does not need to occupy the top drive and wellhead tools when the drill pipe is put on and off the drill floor, and the vertical root is connected and unloaded, which saves a lot of time and improves drilling efficiency; The process of pole conveying and standing root connection is mechanized operation, which does not require workers to work in dangerous areas, significantly reduces the labor intensity of workers, and avoids unsafe accidents.

Claims (2)

1. A device for connecting vertical roots of drill pipes, characterized in that: a vertical root frame (7) is fixedly installed on the front side of the drill floor of the drilling rig and next to the gate ramp, and on the ground beside the front ramp of the vertical root frame (7) The catwalk (1) is fixedly installed, and the lifting manipulator (2) is installed in the catwalk (1); the erecting chuck (4), hydraulic tongs (6), and lifting tackle are installed in the stand frame (7) (5) and the suspension chuck (8); a two-story platform (10) is installed on the derrick of the drilling rig, and an automatic derrick worker (9) is suspended and installed under the two-story platform (10); The lifting manipulator (2), righting chuck (4), lifting block (5), hydraulic tongs (6) and suspension chuck (8) are all communicated with the electro-hydraulic control system (3). 2. The device for connecting drill pipes to vertical roots according to claim 1, characterized in that: the lifting manipulator (2), the righting chuck (4), the lifting block (5), the hydraulic tongs (6 ), the suspension chuck (8) and the automatic derrick (9) are all provided with position sensors.

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