A workover rig base test device
By integrating sensor connecting pins and hydraulic cylinders into the workover rig base test device, and simulating loads using on-site facilities, the problems of time-consuming, labor-intensive, and safety hazards associated with traditional devices are solved, achieving efficient and safe workover rig base testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAOYOU HAOXIANG PETROLEUM MASCH CO
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional well workover rig base test equipment is time-consuming and labor-intensive to install, cannot reuse oilfield site facilities, resulting in repeated investment and safety hazards, and lacks real-time load monitoring and protection mechanisms.
A well workover rig base test device was designed. It utilizes the hydraulic station, hydraulic pipelines and ground anchors of the test site, and connects the upper and lower connecting beams through integrated sensor connecting pins. A single hydraulic cylinder is used to apply vertical load, and a real-time force sensor and pressure relief valve are used for safety protection.
It enables simple installation and safe and reliable testing, improves testing efficiency and accuracy, reduces costs and enhances safety, and is adaptable to well workover rig base testing at different heights.
Smart Images
Figure CN224471445U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oilfield exploration technology, specifically relating to a well workover rig base test device. Background Technology
[0002] As the primary well-workover equipment in oilfields, the 1500-4000 meter series workover rigs have seen increasingly stringent requirements from users regarding factory testing due to the specialized and customized development of their bases. However, traditional workover rig base testing devices are time-consuming and labor-intensive to install, and cannot reuse the widely distributed hydraulic stations, hydraulic pipelines, and pre-embedded anchors in oilfields, leading to repeated equipment investment and increased testing costs. Furthermore, traditional workover rig base testing devices have long load transmission paths, making them prone to off-center load instability, and lack real-time load monitoring and protection mechanisms, posing serious safety hazards. Utility Model Content
[0003] To address the aforementioned problems in the existing technology, this utility model provides a well workover rig base testing device. The technical problem to be solved by this utility model is achieved through the following technical solution:
[0004] This utility model provides a test device for a workover rig base, comprising: an upper connecting beam, a lower connecting beam, a test hydraulic cylinder, an integrated sensor connecting pin, a test hydraulic station, hydraulic lines, and a ground anchor; wherein, the upper connecting beam is disposed on the turntable beam of the workover rig base under test, and the bottom of the lower connecting beam is fixed to the ground anchor at the test site; the upper end of the test hydraulic cylinder is hinged to the upper connecting beam via the integrated sensor connecting pin, and the lower end is hinged to the lower connecting beam via the integrated sensor connecting pin; the integrated sensor connecting pin is a pin shaft integrating a force sensor, used to detect the tension of the test hydraulic cylinder in real time; the test hydraulic station at the test site is connected to the test hydraulic cylinder via the hydraulic lines, and applies a vertically downward tension to the workover rig base under test by driving a single test hydraulic cylinder to simulate the working load of the workover rig.
[0005] In one embodiment of this utility model, the upper connecting beam is in contact with the turntable beam of the test workover rig base.
[0006] In one embodiment of this utility model, the ground anchor is a fixed facility pre-embedded in the test site, the lower connecting beam is provided with a pin hole that matches the ground anchor, and a rigid connection is achieved through the integrated sensor connecting pin.
[0007] In one embodiment of this utility model, the lower connecting beam is provided with two different sets of pin holes to be matched and connected with the ground anchors of two different standards respectively.
[0008] In one embodiment of this utility model, the lower end of the test hydraulic cylinder is a piston end, and the piston end is provided with a universal ball joint.
[0009] In one embodiment of this utility model, the piston end stroke of the test hydraulic cylinder is adjustable to adapt to the height of the test well workover rig base.
[0010] In one embodiment of this utility model, the maximum tensile force of the test hydraulic cylinder covers the test load requirements of the workover rig base of the 1500-meter to 4000-meter series.
[0011] In one embodiment of this utility model, the force sensor is a strain gauge force sensor, including strain gauges symmetrically arranged on both sides of the pin shaft, for real-time detection of deformation at both ends of the pin shaft.
[0012] In one embodiment of this utility model, the test hydraulic station is an existing hydraulic power equipment on the test site, equipped with a pressure relief valve. The pressure relief valve releases pressure according to the detection result of the force sensor to stop the loading of the test hydraulic cylinder.
[0013] In one embodiment of this utility model, the hydraulic pipeline includes a quick connector, which enables rapid connection with the test hydraulic cylinder and the test hydraulic station.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model discloses a well-workover rig base testing device. Utilizing existing hydraulic stations, hydraulic pipelines, and on-site ground anchors, the test hydraulic cylinder is connected to the upper and lower connecting beams via integrated sensor connecting pins. The lower connecting beam is then fixed in place by the on-site ground anchors. During the base test, the hydraulic station and hydraulic pipelines at the test site serve as the power source to drive the test hydraulic cylinder. The test hydraulic cylinder applies a downward pulling force to the well-workover rig base, thus completing the factory test of the well-workover rig base using available site resources.
[0016] This utility model's well-workover rig base testing device uses a single hydraulic cylinder drive, simplifying control and loading, and resulting in a more rational main load-bearing structure design. The testing device is easy to install, and the centralized load transfer ensures safe and reliable installation and testing; it not only improves testing efficiency but also helps save testing costs. Furthermore, the use of an integrated sensor connecting pin improves the accuracy and safety of the test by real-time detection of the tension in the hydraulic cylinder.
[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a well repair machine base test device provided in an embodiment of this utility model.
[0019] Reference numerals: 1-Test hydraulic station; 2-Hydraulic pipeline; 3-Upper connecting beam; 4-Integrated sensor connecting pin; 5-Test hydraulic cylinder; 6-Lower connecting beam; 7-Ground anchor; 10-Base of the workover rig under test. Detailed Implementation
[0020] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description of a well workover rig base testing device based on this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0021] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the specific embodiments with reference to the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding can be gained of the technical means and effects adopted by this utility model to achieve the intended purpose. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit the technical solution of this utility model.
[0022] Example 1
[0023] Traditional workover rig base testing devices are time-consuming and labor-intensive to install, and pose safety hazards. They also fail to consider existing on-site facilities, resulting in resource waste. Therefore, this invention provides a workover rig base testing device, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a well repair machine base test device provided in an embodiment of this utility model.
[0024] In this embodiment, the well workover rig base test device includes: a test hydraulic station 1, a hydraulic pipeline 2, an upper connecting beam 3, an integrated sensor connecting pin 4, and a ground anchor 7. The upper connecting beam 3 is mounted on the turntable beam of the well workover rig base 10 under test, and the bottom of the lower connecting beam 6 is fixed to the ground anchor 7 at the test site. The upper end of the test hydraulic cylinder 5 is hinged to the upper connecting beam 3 via the integrated sensor connecting pin 4, and the lower end is hinged to the lower connecting beam 6 via the integrated sensor connecting pin 4. The integrated sensor connecting pin 4 is a pin with an integrated force sensor, used to detect the tension of the test hydraulic cylinder 5 in real time. The test hydraulic station 1 at the test site is connected to the test hydraulic cylinder 5 via the hydraulic pipeline 2, and applies a vertically downward tension to the well workover rig base 10 under test by driving the test hydraulic cylinder 5 to simulate the working load of the well workover rig.
[0025] In one alternative implementation, the test hydraulic station 1 is an existing hydraulic power device at the test site.
[0026] In an alternative embodiment, the hydraulic line 2 includes a quick connector for quick connection to the test hydraulic cylinder 5 and the test hydraulic station 1.
[0027] In an alternative implementation, the upper connecting beam 3 contacts the turntable beam plane of the workover rig base 10 under test, thus eliminating the need for additional tooling for fixation.
[0028] In one optional embodiment, the ground anchor 7 is a pre-embedded fixing facility on the test site. The lower connecting beam 6 is provided with pin holes that match the ground anchor 7, and a rigid connection is achieved through an integrated sensor connecting pin 4. For example, the lower connecting beam 6 is provided with two different sets of pin holes to match and connect with two different standard ground anchors 7, such as standard sizes with diameters of 50mm and 80mm. The two sets of pin holes correspond to the two standard ground anchor specifications, allowing for quick switching without additional adapter plates. This eliminates the need for customized tooling and adapts to most test sites, significantly improving the versatility and on-site reusability of the device.
[0029] In one optional embodiment, the lower end of the test hydraulic cylinder 5 is a piston end, which is equipped with a universal ball joint that can automatically adapt to the axial deviation caused by machining or installation errors, avoid the test hydraulic cylinder 5 from bearing additional bending moment, extend the life of the seals and improve test safety.
[0030] For example, all integrated sensor connection pins 4 can be set to the same size to facilitate assembly.
[0031] Preferably, the force sensor can be configured as a strain gauge force sensor, including strain gauges symmetrically arranged on both sides of the pin shaft, for real-time detection of deformation at both ends of the pin shaft. The test hydraulic station 1 is equipped with a pressure relief valve, which is used to release pressure based on the detection results of the force sensor to stop the loading of the test hydraulic cylinder 5. Specifically, the force sensor can detect the tension of the test hydraulic cylinder 5 and the deformation acting on both ends of the pin shaft in real time. When the tension applied by the test hydraulic cylinder 5 is too high, or when eccentricity occurs on the pin shaft, an alarm can be triggered to stop the loading through the pressure relief valve. For example, when the real-time tension exceeds 10% of the test set value or the deformation difference between the strain gauges on both sides exceeds 5%, the pressure relief valve is activated to release pressure to ensure the safety of the test process.
[0032] In one optional embodiment, the piston stroke of the test hydraulic cylinder 5 is adjustable to adapt to the height of the workover rig base 10 under test. By adjusting the piston stroke, workover rig bases of different heights can be adapted without changing the hydraulic cylinder, reducing test preparation time and the types of tooling required. For example, the maximum tensile force of the test hydraulic cylinder 5 can cover the test load requirements of workover rig bases 10 in the 1500-meter to 4000-meter series.
[0033] It is worth noting that the well workover rig base testing device in this embodiment reuses existing test site facilities. The test hydraulic station 1 directly utilizes existing hydraulic power equipment at the test site, connecting to the test hydraulic cylinder 5 via a hydraulic pipeline 2 with a quick connector. The upper connecting beam 3 is a rectangular steel beam, horizontally placed on the turntable beam of the well workover rig base 10 under test, eliminating the need for complex fixing fixtures. The lower connecting beam 6 is locked to the ground anchor 7 via an integrated sensor connecting pin 4, forming a tensile support point. Both ends of the test hydraulic cylinder 5 are hinged to the upper connecting beam 3 and the lower connecting beam 6 via integrated sensor connecting pins 4, applying a vertically downward concentrated load to the well workover rig base 10 under test under the drive of the test hydraulic station 1. This structure eliminates traditional fixtures, utilizes the ground anchor 7 at the test site for fixation, and achieves reaction force transmission. The load path is direct, the safety factor is high, and it is adaptable to 1500 to 4000-meter series base tests, significantly reducing test costs.
[0034] Furthermore, the well workover rig base test device in this embodiment uses a single test hydraulic cylinder 5 for drive, simplifying control and loading, and making the main load-bearing route structure design more reasonable. The test device is easy to install, and due to the centralized load transfer, it eliminates the risk of uneven load caused by uneven pressure from multiple cylinders, making installation and testing safe and reliable; this not only improves test efficiency but also helps save test costs. Simultaneously, the use of an integrated sensor connecting pin 4 improves the accuracy and safety of the test by real-time detection of the tension in the test hydraulic cylinder 5. Force sensors can also be used to detect whether the loaded load is eccentric, and the test hydraulic station 1 can provide timely pressure relief protection and adjustment, further improving test safety.
[0035] The working process of the well workover rig base test device of this utility model is as follows:
[0036] Before the test, clean the debris inside the ground anchor 7 and check its integrity. Move the test hydraulic station 1 to the test site, connect the hydraulic pipeline 2 to the test hydraulic cylinder 5, and connect the power cable of the test hydraulic station 1. Start the test hydraulic station 1 under no-load and verify the control valve, pressure gauge, and pipeline sealing. After verification, hoist the upper connecting beam 3 onto the turntable beam of the workover rig base 10 under test, install the test hydraulic cylinder 5 and add hydraulic oil, slowly extend the piston rod, and connect the upper connecting beam 3 to the upper end of the test hydraulic cylinder 5 through the integrated sensor connecting pin 4. Adjust the position of the lower connecting beam 6 so that its pin hole is aligned with the ground anchor 7 and lock it with the integrated sensor connecting pin 4. Then connect the lower end of the test hydraulic cylinder 5 to the lower connecting beam 6 through the integrated sensor connecting pin 4. Apply graded loading according to the test requirements, and drive the test hydraulic cylinder 5 through the test hydraulic station 1 to apply a vertical downward pulling force to the workover rig base 10 under test to the target value (e.g., 4000kN). Hold the pressure and record the deformation data to complete the factory test of the workover rig base 10 under test.
[0037] This utility model discloses a well-workover rig base testing device. Utilizing existing hydraulic stations, hydraulic pipelines, and on-site ground anchors, the test hydraulic cylinder is connected to the upper and lower connecting beams via integrated sensor connecting pins. The lower connecting beam is then fixed in place by the on-site ground anchors. During the base test, the hydraulic station and hydraulic pipelines at the test site serve as the power source to drive the test hydraulic cylinder. The test hydraulic cylinder applies a downward pulling force to the well-workover rig base, thus completing the factory test of the well-workover rig base using available site resources.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device comprising said element. Terms such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. The orientations or positional relationships indicated by terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.
[0039] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A well workover rig base testing device, characterized in that, include: Upper connecting beam, lower connecting beam, test hydraulic cylinder, integrated sensor connecting pin, test hydraulic station, hydraulic pipelines, and ground anchor; among which... The upper connecting beam is mounted on the turntable beam of the workover rig base under test, and the bottom of the lower connecting beam is fixed to the ground anchor at the test site; the upper end of the test hydraulic cylinder is hinged to the upper connecting beam via the integrated sensor connecting pin, and the lower end is hinged to the lower connecting beam via the integrated sensor connecting pin; the integrated sensor connecting pin is a pin with an integrated force sensor, used to detect the tension of the test hydraulic cylinder in real time; The test hydraulic station at the test site is connected to the test hydraulic cylinder via the hydraulic pipeline. By driving a single test hydraulic cylinder, a vertically downward pulling force is applied to the base of the workover rig under test to simulate the working load of the workover rig.
2. The well workover rig base testing device according to claim 1, characterized in that, The upper connecting beam is in contact with the turntable beam of the test workover rig base.
3. The well workover rig base testing device according to claim 1, characterized in that, The ground anchor is a fixed facility pre-embedded on the test site. The lower connecting beam is provided with pin holes that match the ground anchor, and a rigid connection is achieved through the integrated sensor connecting pin.
4. The well workover rig base testing device according to claim 3, characterized in that, The lower connecting beam is provided with two different sets of pin holes to match and connect with the ground anchors of two different standards respectively.
5. The well workover rig base testing device according to claim 1, characterized in that, The lower end of the test hydraulic cylinder is the piston end, and the piston end is equipped with a universal ball joint.
6. The well workover rig base testing device according to claim 5, characterized in that, The piston end stroke of the test hydraulic cylinder is adjustable to adapt to the height of the test workover rig base.
7. The well workover rig base testing device according to claim 1, characterized in that, The maximum tensile force of the test hydraulic cylinder covers the test load requirements of the base of the tested workover rig in the 1500-meter to 4000-meter series.
8. The well workover rig base testing device according to claim 1, characterized in that, The force sensor is a strain gauge force sensor, which includes strain gauges symmetrically arranged on both sides of the pin shaft for real-time detection of deformation at both ends of the pin shaft.
9. The well workover rig base testing device according to claim 8, characterized in that, The test hydraulic station is an existing hydraulic power equipment on the test site, equipped with a pressure relief valve. The pressure relief valve releases pressure according to the detection result of the force sensor to stop the loading of the test hydraulic cylinder.
10. The well workover rig base testing device according to claim 1, characterized in that, The hydraulic pipeline includes quick connectors, which enable rapid connection to the test hydraulic cylinder and the test hydraulic station.