Load monitoring device for wellhead stabilizer of under-pressure operation machine

Abstract

The utility model discloses a load monitoring device for a wellhead stabilizer of an under-pressure operation machine, and relates to the field of oil and gas exploitation equipment. The load monitoring device for the wellhead stabilizer of the under-pressure operation machine comprises a main machine, a height fine adjustment structure and a base, the base supports the height fine adjustment structure, the height fine adjustment structure comprises a height-adjustable supporting seat, and the supporting seat supports the main machine; the system further comprises a load monitoring structure. The load monitoring structure comprises a load sensing device and a load displayer, the load sensing device is arranged between the base and the height fine adjustment structure, the load displayer is installed on the height fine adjustment structure, the load displayer is connected with the load sensing device through a first line, and the load displayer is used for displaying the measured value of the load sensing device. According to the utility model, the stresses of different positions of the wellhead stabilizer are monitored and displayed in real time, so that a worker can know and adjust the stresses in time, and further inclination and instability of a wellhead device possibly caused by untimely understanding and processing are avoided.

Description

Technical Field

[0001] The utility model relates to the field of oil and gas production equipment, in particular to a load monitoring device for a wellhead stabilizer of a pressure-operated machine. Background Art

[0002] The wellhead stabilizer for pressure operation plays the role of straightening the wellhead device and bearing part of the weight of the pressure operation machine. It includes the main part of the wellhead stabilizer, and the four corners of the main part of the wellhead stabilizer are provided with height fine-tuning structures, which are used to fine-tune the angle of the main part of the wellhead stabilizer. Patent application number 201320141691.8 discloses the wellhead stabilizer for the pressure operation machine.

[0003] During construction, the equipment may experience slight irregular movements due to the lifting of the hydraulic cylinder, the pressing of the hydraulic cylinder, the rotation of the turntable, the rotation of the hydraulic clamp, etc. of the pressurized operation machine. If the force is uneven and the foundation is not solid, the equipment may tilt and become unstable, which may lead to an accident in serious cases. When the wellhead device of the pressurized operation has a slight tilt, the wellhead stabilizer angle can be adjusted by adjusting the height fine-tuning structure of the wellhead stabilizer to straighten the wellhead device. However, the wellhead stabilizer of the pressurized operation machine currently lacks a monitoring device to detect whether the wellhead device is tilted, which is not conducive to timely knowing the tilt of the wellhead device and timely adjusting the height fine-tuning structure of the wellhead stabilizer of the pressurized operation machine. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a load monitoring device for a wellhead stabilizer of a pressure-operating machine, which can monitor and display the force of the wellhead stabilizer of the pressure-operating machine.

[0005] The technical solution adopted to solve the above problems is: the load monitoring device of the wellhead stabilizer of the pressure-operating machine includes a main machine, a height fine-tuning structure and a base, the base supports the height fine-tuning structure, the height fine-tuning structure includes a height-adjustable support seat, and the support seat supports the main machine; it also includes a load monitoring structure; the load monitoring structure includes a load sensing device and a load display, the load sensing device is arranged between the base and the height fine-tuning structure, the load display is installed on the height fine-tuning structure, the load display is connected to the load sensing device through a first line, and the load display is used to display the measured value of the load sensing device.

[0006] Furthermore, there are four height fine-tuning structures, which respectively support the four corners of the main machine, and the load monitoring structure and the height fine-tuning structure are arranged in one-to-one correspondence.

[0007] Furthermore, a junction box is provided on the main machine; the load monitoring structure includes a telescopic pull box and a second line, the telescopic pull box includes a box body and a steel wire rope that can automatically retract into the box body after being pulled out, the box body is installed on the main machine, the second line includes an ordinary line and a spiral line connected to the ordinary line, the connection between the ordinary line and the spiral line is fixed near the box body, the ordinary line is connected to the junction box, the spiral line is connected to the load display, the steel wire rope is pulled out of the box body and passes through the spiral line, and the end of the steel wire rope is fixed.

[0008] Furthermore, the load sensing device includes a lower seat of the sensing device, an upper seat of the sensing device and a weighing sensor. The lower seat of the sensing device is connected to the base. The lower seat of the sensing device has a vertically arranged sensor hole. The weighing sensor is arranged in the sensor hole. The upper seat of the sensing device has an insertion column. The insertion column is inserted into the sensor hole and fits with the gap of the sensor hole. The weighing sensor supports the insertion column. The main machine is connected to the upper seat of the sensing device. The first circuit passes through the lower seat of the sensing device and is connected to the weighing sensor.

[0009] Furthermore, the upper seat of the sensor device includes an upper seat body, a ball head and two ball head covers, the upper seat body is provided with an upper seat body ball head cavity, the two ball head covers are both semicircular in shape, the ball head covers are provided with ball head cover ball head cavity, the two ball head covers are connected and spliced ​​with the upper seat body, the two ball head cover ball head cavities and the upper seat body ball head cavity together form an upper seat ball head cavity, the ball head includes a ball head body and a ball head connecting part, the ball head body is located in the upper seat ball head cavity and is clearance-matched with the upper seat ball head cavity, and the height fine-tuning structure is connected to the ball head connecting part.

[0010] Furthermore, the height fine-tuning structure comprises a jack, and the supporting seat is connected with the jack.

[0011] Furthermore, the load display is an explosion-proof display, the junction box is an explosion-proof junction box, the first line is divided into two sections, the two sections of the first line are connected by a movable connector, and the ordinary line is divided into two sections, the two sections of the ordinary line are connected by a movable connector.

[0012] The beneficial effects of the utility model are: 1. The utility model is provided with a load monitoring structure, which can monitor the forces of each height fine-tuning structure, that is, the forces at different positions of the wellhead stabilizer of the pressure-operating machine, and display the forces. When the forces displayed by a certain load monitoring structure are significantly greater than the forces displayed by other load monitoring structures, it means that the wellhead device of the pressure-operating machine is tilted to that side, and the support seat of the corresponding height fine-tuning structure needs to be slightly raised to straighten the wellhead device. The utility model monitors and displays the forces at different positions of the wellhead stabilizer in real time, so that the staff can understand and adjust them in time, avoiding further tilting and instability of the wellhead device that may be caused by untimely understanding and handling.

[0013] 2. The load monitoring structure of the utility model takes power from the main body of the wellhead stabilizer of the pressure working machine, which can ensure continuous monitoring for a long time and can adapt to the lifting and lowering of the wellhead stabilizer of the pressure working machine to avoid line entanglement and knotting. The load sensing device accurately senses the force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the structural diagram of the load monitoring device for the wellhead stabilizer of the pressure-operating machine;

[0015] Figure 2 It is the load monitoring structure diagram;

[0016] Figure 3 It is the structural diagram of the load sensing device;

[0017] Figure 4 is a three-dimensional diagram of the load sensing device;

[0018] Figure 5 It is the circuit diagram of the load monitoring device of the wellhead stabilizer of the pressure working machine;

[0019] Marked in the figure are: main unit 1, junction box 11, height fine-adjustment structure 2, jack 21, support seat 22, base 3, load monitoring structure 4, load sensing device 41, sensing device lower seat 411, sensor hole 4111, upper seat body 412, insertion column 4121, upper seat body ball head cavity 4122, ball head cover 413, ball head cover ball head cavity 4131, ball head 414, ball head connecting part 4141, ball head body 4142, weighing sensor 415, load display 42, first line 43, second line 44, ordinary line 441, spiral line 442, telescopic pull box 45, box body 451, wire rope 452. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1 and Figure 2 As shown, the load monitoring device for the wellhead stabilizer of the pressure-operating machine includes a main machine 1, a height fine-tuning structure 2 and a base 3, the base 3 supports the height fine-tuning structure 2, the height fine-tuning structure 2 includes a height-adjustable support seat 22, and the support seat 22 supports the main machine 1; it also includes a load monitoring structure 4; the load monitoring structure 4 includes a load sensing device 41 and a load display 42, the load sensing device 41 is arranged between the base 3 and the height fine-tuning structure 2, the load display 42 is installed on the height fine-tuning structure 2, the load display 42 is connected to the load sensing device 41 through a first line 43, and the load display 42 is used to display the measured value of the load sensing device 41.

[0022] The number of height fine-tuning structures 2 can be conventionally four, and the four height fine-tuning structures 2 respectively support the four corners of the host 1, and the load monitoring structure 4 is correspondingly arranged with the height fine-tuning structure 2. The host 1 refers to the main body of the wellhead stabilizer of the existing pressure-operating machine, and the host 1 can be raised and lowered.

[0023] The utility model is provided with a load monitoring structure 4, and the load sensing device 41 can monitor the force of each height fine-tuning structure 2, and the load display 4 displays the measured value of the load sensing device 41; that is, the force at different positions of the wellhead stabilizer of the pressure-operating machine is detected and the force is displayed. When the force displayed by a certain load monitoring structure 4 is significantly greater than the force displayed by other load monitoring structures 4, it means that the wellhead device of the pressure-operating machine is tilted to that side, and the support seat 22 of the corresponding height fine-tuning structure 2 needs to be slightly raised to re-straighten the wellhead device. The utility model monitors and displays the force at different positions of the wellhead stabilizer in real time, and the staff can understand and adjust it in time, avoiding further tilting and instability of the wellhead device that may be caused by untimely understanding and handling.

[0024] The connection method of the load display 42 is preferably as follows Figure 2 As shown, a junction box 11 is provided on the host 1; the load monitoring structure 4 includes a telescopic pull box 45 and a second line 44, the telescopic pull box 45 includes a box body 451 and a steel wire rope 452 which can automatically retract into the box body 451 after being pulled out, the box body 451 is installed on the host 1, the second line 44 includes a common line 441 and a spiral line 442 connected to the common line 441, the connection between the common line 441 and the spiral line 442 is fixed near the box body 451, the common line 441 is connected to the junction box 11, the spiral line 442 is connected to the load display 42, the steel wire rope 452 is pulled out of the box body 451 and passes through the spiral line 442, and the end of the steel wire rope 452 is fixed.

[0025] The junction box 11 is used to supply power to each load display 4. The load monitoring structure of the utility model takes power from the host 1, which can ensure continuous monitoring for a long time. As mentioned above, the host 1 can be raised and lowered, which will drive the junction box 11 to rise and fall, and will also drive the second line 44 to move, which may easily cause the second line 44 to be pulled or entangled. However, through the setting of the utility model, the spiral line 442 is retractable, which can avoid pulling and causing the line to be broken. The telescopic pull box 45 is a prior art product, and its structure is similar to a tape measure. Under the action of the spring inside the box body 451, if the wire rope 452 is not pulled, it will automatically retract into the box body 451. If there is enough force to pull the wire rope 452, the wire rope 452 will be pulled out. The wire rope 452 passes through the spiral line 442, and the wire rope 452 guides the spiral line 442 to retract and tangle, avoiding the bending of the spiral line 442 and causing knotting.

[0026] Since the utility model is applied to oil and gas exploitation, some components of the load monitoring structure 4 are preferably as follows: the load display 42 is an explosion-proof display, the junction box 11 is an explosion-proof junction box, and both the explosion-proof display and the explosion-proof junction box are prior art. In order to facilitate line connection, the first line 43 is preferably divided into two sections, and the two sections of the first line 43 are connected by a movable plug-in, and the ordinary line 441 is divided into two sections, and the two sections of the ordinary line 441 are connected by a movable plug-in.

[0027] The specific structure of the load sensor device 41 is preferably as follows: Figure 3 As shown, the load sensing device 41 includes a sensing device lower seat 411, a sensing device upper seat and a weighing sensor 415. The sensing device lower seat 411 is connected to the base 3. The sensing device lower seat 411 has a vertically arranged sensor hole 4111. The weighing sensor 415 is arranged in the sensor hole 4111. The sensing device upper seat has an insertion column 4121. The insertion column 4121 is inserted into the sensor hole 4111 and has a clearance fit with the sensor hole 4111. The weighing sensor 415 supports the insertion column 4121. The main machine 1 is connected to the sensing device upper seat. The first line 43 passes through the sensing device lower seat 411 and is connected to the weighing sensor 415.

[0028] The host 1 is connected to the upper seat of the sensor device. The gravity of the host and the force of the wellhead device of the pressure-bearing operating machine are transmitted to the upper seat of the sensor device, and then transmitted to the weighing sensor 415 through the insertion column 4121. The weighing sensor 415 measures the force.

[0029] The specific structure of the upper seat of the sensor device is preferably as follows: the upper seat of the sensor device includes an upper seat body 412, a ball head 414 and two ball head covers 413, the upper seat body 412 has an upper seat body ball head cavity 4122, the two ball head covers 413 are both semicircular in shape, the ball head covers 413 have ball head cover ball head cavity 4131, the two ball head covers 413 are both connected and spliced ​​with the upper seat body 412, the two ball head cover ball head cavities 4131 and the upper seat body ball head cavity 4122 together form an upper seat ball head cavity, the ball head 414 includes a ball head body 4142 and a ball head connecting part 4141, the ball head body 4142 is located in the upper seat ball head cavity and cooperates with the upper seat ball head cavity clearance, and the height fine-tuning structure 2 is connected to the ball head connecting part 4141.

[0030] The upper seat of the sensor device actually forms a ball joint structure. During assembly, the ball head body 4142 is first placed into the upper seat body ball head cavity 4122, and then covered with two ball head covers 413 to prevent the ball head body 4142 from withdrawing. The upper seat of the sensor device actually forms a ball joint structure in order to avoid bending stress between the height fine-tuning structure 2 and the load sensor device 41 when the angle of the wellhead stabilizer of the pressure-operating machine is fine-tuned.

[0031] The height fine adjustment structure 2 adopts the existing technology, and the height fine adjustment structure 2 may include a jack 21, and the support seat 22 is connected to the jack 21. The jack 21 may be an existing mechanical or hydraulic jack.

Claims

1. A load monitoring device for a wellhead stabilizer of a pressure-operating machine, comprising a main machine (1), a height fine-tuning structure (2) and a base (3), wherein the base (3) supports the height fine-tuning structure (2), the height fine-tuning structure (2) comprises a height-adjustable support seat (22), and the support seat (22) supports the main machine (1); characterized in that: The invention comprises a load monitoring structure (4); the load monitoring structure (4) comprises a load sensing device (41) and a load display (42); the load sensing device (41) is arranged between a base (3) and a height fine-tuning structure (2); the load display (42) is installed on the height fine-tuning structure (2); the load display (42) is connected to the load sensing device (41) via a first line (43); and the load display (42) is used to display the measured value of the load sensing device (41).

2. The load monitoring device for a wellhead stabilizer of a pressure-operating machine according to claim 1 is characterized in that: The number of the height fine-tuning structures (2) is four, and the four height fine-tuning structures (2) respectively support the four corners of the main machine (1), and the load monitoring structure (4) is arranged in a one-to-one correspondence with the height fine-tuning structures (2).

3. The load monitoring device for the wellhead stabilizer of the pressure-operating machine according to claim 2 is characterized in that: A terminal box (11) is arranged on the main machine (1); the load monitoring structure (4) comprises a telescopic pull box (45) and a second circuit (44); the telescopic pull box (45) comprises a box body (451) and a steel wire rope (452) which can automatically retract into the box body (451) after being pulled out; the box body (451) is installed on the main machine (1); the second circuit (44) comprises a common circuit (441) and a spiral circuit (442) connected to the common circuit (441); the connection between the common circuit (441) and the spiral circuit (442) is fixed near the box body (451); the common circuit (441) is connected to the terminal box (11); the spiral circuit (442) is connected to the load display (42); the steel wire rope (452) is pulled out of the box body (451) and passes through the spiral circuit (442); the end of the steel wire rope (452) is fixed.

4. The load monitoring device for a wellhead stabilizer of a pressure-operating machine according to claim 3 is characterized in that: The load sensing device (41) comprises a sensing device lower seat (411), a sensing device upper seat and a weighing sensor (415). The sensing device lower seat (411) is connected to a base (3). The sensing device lower seat (411) is provided with a vertically arranged sensor hole (4111). The weighing sensor (415) is arranged in the sensor hole (4111). The sensing device upper seat is provided with an insertion column (4121). The insertion column (4121) is inserted into the sensor hole (4111) and is clearance-matched with the sensor hole (4111). The weighing sensor (415) supports the insertion column (4121). The host (1) is connected to the sensing device upper seat. The first line (43) passes through the sensing device lower seat (411) and is connected to the weighing sensor (415).

5. The load monitoring device for the wellhead stabilizer of the pressure-operating machine according to claim 4 is characterized in that: The upper seat of the sensor device comprises an upper seat body (412), a ball head (414) and two ball head covers (413); the upper seat body (412) is provided with an upper seat body ball head cavity (4122); the two ball head covers (413) are both semicircular in shape; the ball head covers (413) are provided with a ball head cover ball head cavity (4131); the two ball head covers (413) are both connected and spliced ​​with the upper seat body (412); the two ball head cover ball head cavities (4131) and the upper seat body ball head cavity (4122) together form an upper seat ball head cavity; the ball head (414) comprises a ball head body (4142) and a ball head connecting portion (4141); the ball head body (4142) is located in the upper seat ball head cavity and is clearance-matched with the upper seat ball head cavity; and the height fine-tuning structure (2) is connected to the ball head connecting portion (4141).

6. The load monitoring device for the wellhead stabilizer of the pressure-operating machine according to claim 5 is characterized in that: The height fine-tuning structure (2) comprises a jack (21), and a support seat (22) is connected to the jack (21).

7. The load monitoring device for the wellhead stabilizer of the pressure-operating machine according to claim 6 is characterized in that: The load display (42) is an explosion-proof display, the junction box (11) is an explosion-proof junction box, the first circuit (43) is divided into two sections, the two sections of the first circuit (43) are connected via a movable plug-in connector, and the common circuit (441) is divided into two sections, the two sections of the common circuit (441) are connected via a movable plug-in connector.

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