Load sensing device for oil well intermittent opening control

Abstract

The utility model provides a load sensing device for oil well intermittent opening control, which belongs to the technical field of oil well control equipment and comprises an outer shell, a plurality of relays are arranged in the outer shell, a load sensing protection mechanism is arranged on one side close to the relays, and the load sensing protection mechanism comprises two sliding groove frames distributed in parallel. A load sensing module, a circuit detection module, a wireless signal module and a control module are arranged on the two sliding groove frames and are electrically connected, the control module is electrically connected with a driving assembly, and the driving assembly is installed on the two sliding groove frames. The circuit of the load sensing module can be monitored in real time, when overload occurs, a power source can be automatically switched off, overload damage to the load sensing module is avoided, and the situation that a beam hanger above the load sensing module and a square clip on a polish rod directly fall off, the load sensing module and a wellhead are damaged, and larger loss is caused is effectively prevented.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of oil well control equipment, in particular to a load sensing device for oil well intermittent control. Background Art

[0002] Oil wells are holes drilled according to the well layout system of the oil field development plan to extract petroleum. They are channels for oil to rise from the bottom of the well to the wellhead. Generally, after the oil well reaches the oil layer, the oil layer casing is lowered, and oil well cement is injected into the annular space between the casing and the well wall to maintain the well wall and seal the oil, gas and water layers. Then, according to the requirements of oil field development, the oil layer is perforated with a perforating gun to form a channel, and the oil pipe is lowered. The oil is raised from the bottom of the well to the wellhead by using appropriate flow induction methods.

[0003] Well intermittent control is a mining technology used for low-pressure, low-permeability, and low-yield oil wells. It aims to achieve energy conservation and consumption reduction by automatically monitoring and controlling the start and stop of the pumping unit. This technology is usually combined with a continuous liquid level monitoring system to determine the dynamic fluid supply status of the pumping well by analyzing the pump indicator diagram. The load sensor used is located between the suspension rope and the square clip. Due to the long-term operation of the equipment, the load sensor device sometimes becomes overloaded. If the staff fails to discover it in time and perform power-off maintenance, it will cause inaccurate detection or damage to related circuits. In severe cases, it will be directly damaged by the suspension rope above the load sensor device and the square clip on the bare rod, and the fall of the suspension rope will also damage the wellhead, causing greater losses. Utility Model Content

[0004] The technical solution of the utility model is aimed at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the utility model mainly provides a load sensing device for oil well inter-opening control, which is used to solve the technical problem raised in the above background technology that if an overload occurs during the use of the load sensing device, and the staff fails to discover the power outage in time, it will cause significant losses.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A load sensing device for oil well intermittent control comprises an outer shell, a plurality of relays are arranged in a linear manner with equal spacing, a load sensing protection mechanism is arranged near one side of the relay, the load sensing protection mechanism comprises two parallel chute racks, a load sensing module, a circuit detection module, a wireless signal module and a control module are arranged on the two chute racks, and are electrically connected to each other, the control module is electrically connected to a drive assembly, and the drive assembly is mounted on the two chute racks.

[0007] Furthermore, the driving assembly includes a moving frame, the sliders at both ends of the moving frame are slidably connected to the slide frame, and the opening position on the moving frame is slidably connected to a V-shaped toggle block, and the V-shaped toggle block and the switch of the corresponding relay are in the same vertical plane.

[0008] Furthermore, a base plate is provided at the bottom of the movable frame, a cylinder is provided on the base plate, a connecting rod is provided at the output end of the cylinder, a connecting block is provided at the upper end of the connecting rod, and the connecting block and the V-shaped toggle block are threadedly connected.

[0009] Furthermore, the movable frame and the base plate are detachably connected.

[0010] Furthermore, both ends of each slide slot frame are connected to a bending bracket via bolts, and each bending bracket is connected to the inner wall of the shell via bolts.

[0011] Furthermore, a mounting plate is commonly provided on the two slide slot frames, and the mounting plate is connected to the load sensing module, the circuit detection module, the wireless signal module and the control module by screws.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model realizes real-time monitoring of the circuit of the load sensing module in the process of oil well exploitation by means of the load sensing module, the circuit detection module, the wireless signal module, the control module and the driving component. When an overload occurs, the V-shaped toggle block is driven to move downward to turn off the switch of the relay to automatically disconnect the power supply, thereby avoiding overload damage to the load module, and effectively preventing the rope hanger above the load sensing module and the square clip on the light rod from directly falling off and damaging the load sensing module and the wellhead to cause greater losses. Moreover, with the cooperation of the mobile frame, the slide frame, the mounting plate, the bottom plate and the bending bracket, the installation is convenient, the structure is stable and the utility model has certain practical value.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the load sensing protection mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded view of the drive assembly of the utility model.

[0018] In the figure: 1. outer shell; 2. relay; 3. load sensing protection mechanism; 31. slide frame; 32. mounting plate; 33. load sensing module; 34. circuit detection module; 35. wireless signal module; 36. control module; 37. drive assembly; 371. mobile frame; 372. V-shaped toggle block; 373. bottom plate; 374. cylinder; 375. connecting rod; 376. connecting block; 38. bending bracket. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Please refer to the attached Figure 1-3 A load sensing device for oil well intermittent control comprises an outer shell 1, wherein a plurality of relays 2 are arranged in a linear manner with equal spacing, and a load sensing protection mechanism 3 is arranged near the side of the relay 2, wherein the load sensing protection mechanism 3 comprises two parallel chute racks 31, wherein a load sensing module 33, a circuit detection module 34, a wireless signal module 35 and a control module 36 are arranged on the two chute racks 31, and are electrically connected to each other, wherein the control module 36 is electrically connected to a driving component 37, and the driving component 37 is mounted on the two chute racks 31.

[0023] Through the above structure, it is possible to monitor the circuit of the load sensing module 33 in real time during the oil well exploitation process. When an overload occurs, the power supply can be automatically disconnected to avoid overload damage to the load sensing module 33. The structure can effectively prevent the rope hanger above the load sensing module 33 and the square clip on the bare rod from falling directly and damaging the load sensing module 33 and the wellhead, causing greater losses. The structure is stable and easy to install, and has certain practical value.

[0024] The specific operation is as follows: when the circuit detection module 34 detects that the circuit where the load sensing module 33 is located is overloaded, the control module 36 will send a command to the cylinder 374, and the cylinder 374 will start, and the V-shaped toggle block 372 will be driven downward through the connecting rod 375 and the connecting block 376 to control the relay 2 switch of the circuit corresponding to the load sensing module 33 to turn it off to prevent overload damage.

[0025] Please refer to the attached Figure 1 and attached Figure 2 The movable frame 371 and the bottom plate 373 are detachably connected to facilitate assembly and later disassembly and maintenance. Both ends of each slide frame 31 are connected with a bending bracket 38 by bolts, and each bending bracket 38 is connected to the inner wall of the outer shell 1 by bolts. The slide frame 31 is installed on the inner wall of the outer shell 1 through the bending bracket 38. The two slide frames 31 are jointly provided with a mounting plate 32, and the mounting plate 32 is connected to the load sensing module 33, the circuit detection module 34, the wireless signal module 35 and the control module 36 by screws.

[0026] Please refer to the attached Figure 1 and attached Figure 3 The driving assembly 37 includes a moving frame 371, and the sliders at both ends of the moving frame 371 are slidably connected to the slide frame 31, and the opening position on the moving frame 371 is slidably connected with a V-shaped toggle block 372, and the V-shaped toggle block 372 and the switch of the corresponding relay 2 are in the same vertical plane. The V-shaped toggle block 372 is stably moved up and down through the opening on the moving frame 371. A bottom plate 373 is provided at the bottom of the moving frame 371, and a cylinder 374 is provided on the bottom plate 373. A connecting rod 375 is provided at the output end of the cylinder 374, and a connecting block 376 is provided at the upper end of the connecting rod 375, and the connecting block 376 and the V-shaped toggle block 372 are threadedly connected. The driving of the V-shaped toggle block 372 is realized through the mutual cooperation between the cylinder 374, the connecting block 376 and the connecting rod 375.

[0027] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A load sensing device for oil well intermittent control, comprising an outer shell (1), wherein a plurality of relays (2) are arranged in the outer shell (1), and the relays (2) are arranged linearly at equal intervals, characterized in that: A load sensing protection mechanism (3) is arranged near one side of the relay (2), and the load sensing protection mechanism (3) comprises two parallelly distributed slide slot frames (31), and a load sensing module (33), a circuit detection module (34), a wireless signal module (35) and a control module (36) are arranged on the two slide slot frames (31), and are electrically connected to each other, and the control module (36) is electrically connected to a drive component (37), and the drive component (37) is installed on the two slide slot frames (31).

2. A load sensing device for oil well inter-opening control according to claim 1, characterized in that: The driving assembly (37) comprises a moving frame (371), wherein the sliders at both ends of the moving frame (371) are slidably connected to the slide frame (31), and a V-shaped toggle block (372) is slidably connected to the opening position on the moving frame (371), and the V-shaped toggle block (372) and the switch of the corresponding relay (2) are located in the same vertical plane.

3. A load sensing device for oil well inter-opening control according to claim 2, characterized in that: A bottom plate (373) is provided at the bottom of the movable frame (371), a cylinder (374) is provided on the bottom plate (373), a connecting rod (375) is provided at the output end of the cylinder (374), a connecting block (376) is provided at the upper end of the connecting rod (375), and the connecting block (376) and the V-shaped toggle block (372) are threadedly connected.

4. A load sensing device for oil well inter-opening control according to claim 3, characterized in that: The movable frame (371) and the bottom plate (373) are detachably connected.

5. The load sensing device for oil well inter-opening control according to claim 2, characterized in that: Both ends of each slide slot frame (31) are connected to a bending bracket (38) via bolts, and each bending bracket (38) is connected to the inner wall of the outer shell (1) via bolts.

6. A load sensing device for oil well inter-opening control according to claim 5, characterized in that: A mounting plate (32) is commonly provided on the two slide slot frames (31), and the mounting plate (32) is connected to the load sensing module (33), the circuit detection module (34), the wireless signal module (35) and the control module (36) via screws.

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