A test device and test method for static load rotating composite torque of a riser tensioning ring

Abstract

The present invention discloses a static load rotating composite torque testing device for a riser tensioning ring, which includes a rotary table for an oil drilling rig, a test derrick, a driving motor, a torque sensor, and a support base. A bearing bottom beam is arranged below the rotary table for the oil drilling rig, and a loading oil cylinder is fixedly connected to the bearing bottom beam. The piston of the loading oil cylinder is fixedly connected to the pressure-bearing ring of the riser tensioning ring. The present invention can meet the requirement of testing the rotating torque of the riser tensioning ring while bearing an axial tensile load. The present invention also discloses a method for testing the static load rotating composite torque of a riser tensioning ring, which specifically includes the retraction of the piston rod of the loading oil cylinder, and its tensile force acts on the riser tensioning ring body through a split pressing plate. The driving motor makes the rotary table of the oil drilling rig drive the pressure-bearing ring of the tensioning ring to rotate at a specified speed, and the torque sensor outputs the rotating torque, so as to achieve the purpose of testing the rotating torque at the corresponding position under the static load state.

Description

Technical Field

[0001] The invention belongs to the technical field of oil drilling equipment testing, and relates to a static load rotating composite torque testing device for a riser tensioning ring, and also relates to a static load rotating composite torque testing method for a riser tensioning ring. Background Art

[0002] The riser tensioning ring is a key equipment of the riser system, which is mainly used to bear the weight of the entire riser string and finally transfer the load to the riser tensioner. According to the requirements in the API 16F Marine Drilling Hoisting Equipment Specification, the tensioning ring needs to conduct torque tests during the rotation start-up and rotation process under at least 4 axial tensile load conditions. The test requirements are that at each tension load, the tensioning ring is rotated 360° at 2° - 4° per minute, and the maximum and average torques of the riser tensioning ring under each tension load are tested at the specified rotation positions. This test is an important link to verify whether the structure of the riser tensioning ring meets the design requirements. Therefore, there is an urgent need for a static load rotating composite torque testing device and testing method for the riser tensioning ring to achieve the purpose of cost reduction and efficient on-site testing by using existing oil drilling rig equipment. Summary of the Invention

[0003] The purpose of the invention is to provide a static load rotating composite torque testing device for a riser tensioning ring, which can meet the requirement of testing the rotating torque of the riser tensioning ring while bearing the axial tensile load.

[0004] Another purpose of the invention is to provide a static load rotating composite torque testing method for a riser tensioning ring.

[0005] The first technical solution adopted by the invention is a static load rotating composite torque testing device for a riser tensioning ring, which is used to test the torque of the riser tensioning ring. The riser tensioning ring includes a relatively rotatable tensioning ring body and a pressure-bearing ring. The device includes a rotary table for an oil drilling rig and a test derrick. The input end of the rotary table for the oil drilling rig is connected to a driving motor, and a torque sensor is arranged between the input end of the rotary table for the oil drilling rig and the driving motor. A support seat is fixed on the rotary table for the oil drilling rig. The pressure-bearing ring of the riser tensioning ring is fixedly connected to the support seat. The tensioning ring body of the riser tensioning ring is fixedly connected to the test derrick. A bearing bottom beam is arranged below the rotary table for the oil drilling rig. A loading oil cylinder is fixedly connected to the bearing bottom beam. The loading oil cylinder passes through the rotary table for the oil drilling rig, and the piston of the loading oil cylinder is fixedly connected to the pressure-bearing ring of the riser tensioning ring.

[0006] The characteristics of the first technical solution of the invention also lie in that

[0007] The pressure-bearing ring of the riser tensioning ring is fixedly connected to the support seat through no less than four groups of ear seats.

[0008] The piston of the loading oil cylinder and the pressure-bearing ring of the riser tensioning ring are fixedly connected as a whole through a split pressing plate.

[0009] The test derrick is fixed to the ground, and the upper part of the test derrick is fixedly connected to the tensioning ring body of the riser tensioning ring.

[0010] The second technical solution adopted by the present invention is a static load rotation composite torque test method for a riser tensioning ring. The test is carried out by applying the static load rotation composite torque test device for the riser tensioning ring of the present invention, and specifically includes:

[0011] Control the piston of the loading oil cylinder to retract, apply a vertical load to the tensioning ring body of the test product riser tensioning ring through the split pressing plate. At the same time, operate the driving motor to drive the rotary table of the oil drilling rig to rotate. The rotary table of the oil drilling rig drives the pressure-bearing ring of the test product riser tensioning ring to rotate through the support base. During this process, at the target test position, the torque sensor detects and outputs the torque until the torque data acquisition at the target test position is completed, and the static load rotation composite torque test of the riser tensioning ring is completed.

[0012] The beneficial effects of the present invention are:

[0013] The static load rotation composite torque test device for a riser tensioning ring of the present invention has a simple structure and is convenient to use; it effectively utilizes the existing supporting tooling of oil drilling rig equipment to realize the static load rotation composite torque test of the riser tensioning ring, which is convenient to implement, safe and reliable, and the test is accurate and effective.

[0014] The static load rotation composite torque test method for a riser tensioning ring of the present invention can effectively simulate the on-site use conditions of the product, has high test accuracy, and provides a reliable guarantee for the product performance test. Description of the Drawings

[0015] Figure 1 It is the front view of a static load rotation composite torque test device for a riser tensioning ring of the present invention;

[0016] Figure 2 It is the left view of a static load rotation composite torque test device for a riser tensioning ring of the present invention.

[0017] In the figure, 1. Support base, 2. Rotary table of oil drilling rig, 3. Split pressing plate, 4. Loading oil cylinder, 5. Test derrick, 6. Torque sensor, 7. Driving motor, 8. Bearing bottom beam, 9. Test product riser tensioning ring. Detailed Description of the Invention

[0018] The present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0019] A static load rotating composite torque testing device for a riser tensioning ring of the present invention is used to test the torque of the riser tensioning ring. The riser tensioning ring includes a tensioning ring body and a pressure-bearing ring that can rotate relative to each other. As Figure 1-2 shown, it includes a rotary table 2 for an oil drilling rig and a test derrick 5. The test derrick 5 is fixed to the ground. The input end of the rotary table 2 for the oil drilling rig is connected to a driving motor 7. The rotary table 2 for the oil drilling rig includes a rotary table body and a gear transmission structure. The gear transmission structure converts the rotation direction transmitted by the driving motor 7 and makes the rotary table body rotate horizontally. A torque sensor 6 is provided between the input end of the rotary table 2 for the oil drilling rig and the driving motor 7. The torque sensor 6 is used for testing and outputting the rotational torque. A support seat 1 is fixed on the rotary table 2 for the oil drilling rig. The pressure-bearing ring of the riser tensioning ring is fixedly connected to the support seat 1 through no less than four groups of ear seats. The tensioning ring body of the riser tensioning ring is fixedly connected to the upper part of the test derrick 5. The test derrick 5 plays a role in fixing. A load-bearing bottom beam 8 is provided below the rotary table 2 for the oil drilling rig. A loading oil cylinder 4 is fixedly connected to the load-bearing bottom beam 8. The loading oil cylinder 4 passes through the rotary table 2 for the oil drilling rig. The piston of the loading oil cylinder 4 is fixedly connected to the pressure-bearing ring of the riser tensioning ring through a split pressing plate 3 to form a whole. The retraction of the loading oil cylinder 4 can provide a vertically downward loading load.

[0020] As can be seen from the above, a static load rotating composite torque testing device for a riser tensioning ring of the present invention can meet the requirement of testing the rotational torque of the riser tensioning ring while bearing an axial tensile load.

[0021] The functions of the main components of a static load rotating composite torque testing device for a riser tensioning ring of the present invention are as follows:

[0022] A static load rotating composite torque testing method for a riser tensioning ring uses the static load rotating composite torque testing device of the present invention for testing, which specifically includes:

[0023] Control the piston of the loading oil cylinder 4 to retract, apply a vertical load to the tensioning ring body of the test product, the riser tensioning ring 9, through the split pressing plate 3. At the same time, operate the driving motor 7 to drive the rotary table 2 for the oil drilling rig to rotate. The rotary table 2 for the oil drilling rig drives the pressure-bearing ring of the test product, the riser tensioning ring 9, to rotate through the support seat 1. During this process, at the target test position, the torque sensor 6 detects and outputs the torque until the torque data acquisition at the target test position is completed, and the static load rotating composite torque testing of the riser tensioning ring is completed.

Claims

1. A static load rotating composite torque testing device for a riser tensioning ring, used to test the torque of the riser tensioning ring. The riser tensioning ring includes a tensioning ring body and a pressure-bearing ring that can rotate relative to each other. Characterized in that, It includes a rotary table (2) for oil drilling rigs and a test derrick (5). The input end of the rotary table (2) for oil drilling rigs is connected to a driving motor (7), and a torque sensor (6) is arranged between the input end of the rotary table (2) for oil drilling rigs and the driving motor (7). A support seat (1) is fixed on the rotary table (2) for oil drilling rigs. The pressure-bearing ring of the riser tensioning ring is fixedly connected to the support seat (1) through no less than four groups of ear seats. The tensioning ring body of the riser tensioning ring is fixedly connected to the test derrick (5). A load-bearing bottom beam (8) is arranged below the rotary table (2) for oil drilling rigs. A loading oil cylinder (4) is fixedly connected to the load-bearing bottom beam (8). The loading oil cylinder (4) passes through the rotary table (2) for oil drilling rigs, and the piston of the loading oil cylinder (4) is fixedly connected to the pressure-bearing ring of the riser tensioning ring through a split pressing plate (3) as a whole.

2. A static load rotating composite torque testing device for a riser tensioning ring according to claim 1, Characterized in that, The test derrick (5) is fixed on the ground, and the upper part of the test derrick (5) is fixedly connected to the tensioning ring body of the riser tensioning ring.

3. A static load rotating composite torque testing method for a riser tensioning ring, which uses the static load rotating composite torque testing device for a riser tensioning ring according to claim 1 for testing, Characterized in that, Specifically includes: Controlling the piston of the loading oil cylinder (4) to retract, applying a vertical load to the tensioning ring body of the test product riser tensioning ring (9) through the split pressing plate (3). At the same time, operating the driving motor (7) to drive the rotary table (2) for oil drilling rigs to rotate. The rotary table (2) for oil drilling rigs drives the pressure-bearing ring of the test product riser tensioning ring (9) to rotate through the support seat (1). During this process, at the target test position, the torque sensor (6) detects and outputs the torque until the torque data acquisition at the target test position is completed, and the static load rotating composite torque test of the riser tensioning ring is completed.

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