Lubricating device for hair braid of oil pumping unit

Abstract

The lubricating device comprises a telescopic handle rod, an encircling body is fixedly arranged at the top end of the telescopic handle rod, the encircling body comprises a vertical channel, a first vertical notch communicated to the vertical channel is formed in the encircling body, and the upper portion and the lower portion of the first vertical notch extend to the upper end and the lower end of the encircling body respectively; the first vertical gap has an open state and a closed state, the first vertical gap is opened in the open state, and the first vertical gap is closed in the closed state, so that the to-be-lubricated hair braid is accommodated and encircled in the vertical channel; in the closed state, a gap is formed between the to-be-lubricated hair braid and the surrounding body so that the to-be-lubricated hair braid and the surrounding body can relatively rotate or relatively slide up and down, the oil inlet hole penetrates through the side wall of the surrounding body and is communicated to the vertical channel, and the oil inlet hole is communicated with an oil supply source. The lubricating mode of the device is more reasonable, 360-degree all-directional maintenance can be completed, the service life of the hair braid is prolonged, and normal operation of a pumping well is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of hair braid lubrication, and in particular to a hair braid lubrication device for an oil pump. Background Art

[0002] In oilfield development, the pumping unit is the main ground equipment used for pumping oil. The braid is the main accessory connecting the pumping unit donkey head and the pumping well bare rod. It bears the load of all the sucker rods and liquid columns in the wellbore for a long time, and bears the alternating load generated by the up and down movement of the bare rod. If it works for a long time in harsh outdoor environmental conditions and is not maintained regularly, the braid wire will rust and break, which can easily cause the braid to break and the pumping well to stop, resulting in production losses. In severe cases, the fallen pumping rod column will damage the wellhead equipment and cause leakage, causing well control safety accidents and pumping unit equipment damage accidents. And because the pumping unit braid is high from the ground, maintenance needs to be done at high altitude. Use a lifting vehicle to apply butter on the surface of the braid at a high altitude or climb to the top of the donkey head by hand to pour oil downward for lubrication (poor effect, high operation risk). At the same time, such lubrication operation is time-consuming and labor-intensive, and the well is stopped for a long time, which does not meet the management requirements of the oil production plant.

[0003] Therefore, how to provide a lubricating device for oil pump hair braids that avoids the above-mentioned disadvantages has become a technical problem that technicians in this field urgently need to solve. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a lubricating device for the hair braid of an oil pump, so that the lubrication maintenance and detection work can be completed by ground control, thereby preventing the high-altitude falling accidents during maintenance and detection and ensuring the safety of operation.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A lubricating device for oil pump hair braids includes a telescopic handle rod, a ring body is fixed on the top of the ring body, the ring body includes a vertical channel passing through the upper and lower ends thereof, a first vertical notch is formed on the ring body, which passes through the side wall thereof and is connected to the vertical channel, the first vertical notch extends up and down to the upper and lower ends of the ring body respectively, and the width of the first vertical notch is greater than the diameter of the hair braid to be lubricated, the first vertical notch has an open state and a closed state, in the open state the first vertical notch is open, and in the closed state the first vertical notch is closed so that the hair braid to be lubricated is accommodated and embraced in the vertical channel, in the closed state there is a gap between the hair braid to be lubricated and the ring body so that the two can rotate relative to each other or slide relative to each other up and down, and also includes an oil inlet hole passing through the side wall of the ring body and connected to the vertical channel, the oil inlet hole is connected to an oil supply source.

[0007] Preferably, the embracing body is an outer sleeve having the first vertical notch, an inner sleeve is sleeved inside the outer sleeve and is rotatably arranged therewith, the inner sleeve includes an inner vertical channel running through its upper and lower ends, the inner sleeve also has a second vertical notch running through its side wall and connected to the inner vertical channel, the width of the second vertical notch is greater than the diameter of the hair braid to be lubricated, the open state is formed when the second vertical notch is rotated to the position where the first vertical notch is located, the closed state is formed when the second vertical notch is rotated to a position away from the position where the first vertical notch is located and the side wall of the inner sleeve closes the second vertical notch, the outer sleeve is relatively A circumferential through groove is provided at the side wall position of the first vertical notch and passes through the side wall, and a pull rod is inserted in the circumferential through groove, one end of the pull rod is fixedly connected to the outer wall of the inner sleeve adjacent to the second vertical notch, and the other end extends outward from the circumferential through groove and an external thread is provided on the extended part of the pull rod, and also includes a hand-tightened nut sleeved on the external thread, in the open state, the pull rod is located at one end position adjacent to the circumferential through groove, and in the closed state, the pull rod is located at the other end position adjacent to the circumferential through groove, and the curvature of the inner side wall at the position of the circumferential through groove on the outer sleeve is the same as the curvature of the outer side wall of the inner sleeve.

[0008] Preferably, the outer sleeve and the inner sleeve have the same height in the vertical direction.

[0009] Preferably, the oil inlet hole is opened on the side wall at a lower position of the center of the circumferential through groove.

[0010] Preferably, it also includes a U-shaped connecting frame, wherein a connecting rod is vertically extended inward from the free ends of the two parallel rod bodies of the U-shaped connecting frame, and the two connecting rods are fixed to the two opposite outer side walls of the outer sleeve, and the top end of the retractable handle rod is fixedly connected to the middle position of the cross bar connecting the two parallel rod bodies of the U-shaped connecting frame.

[0011] Preferably, it also includes a camera, which is mounted on the U-shaped connecting frame and is capable of photographing the braids facing the vertical channel.

[0012] Preferably, the retractable handle rod is formed by a plurality of fiberglass straight rods connected in sequence up and down by threads, and the length of each fiberglass straight rod is 1.5 m.

[0013] Preferably, it further comprises a vehicle-mounted skid, on which a lubricating oil tank and a lubricating oil pump connected to the lubricating oil tank are mounted to form the oil supply source, and the outlet of the lubricating oil pump is connected to the oil inlet hole through a hose.

[0014] Technical effects:

[0015] When in use, in the open state, the braid to be lubricated is passed through the first vertical gap into the vertical channel, and in the closed state, the oil supply source supplies oil to the oil inlet, and the retractable handle rod is controlled to control the relative rotation or relative sliding of the encircling body and the braid, so as to achieve lubrication of the braid on the ground. The lubrication and maintenance operation time can be shortened from 30 minutes in the prior art to within 10 minutes, reducing the downtime of the well, improving the production time efficiency, and at the same time, the electric drive method greatly reduces the labor intensity of personnel operation. The lubrication method is more reasonable, and can complete 360-degree all-round maintenance, extend the service life of the braid, and ensure the normal operation of the pumping well.

[0016] Preferably, the inner and outer sleeves are rotated relative to each other to achieve an open state or a closed state, and the operation is convenient and quick.

[0017] As a preferred method, a camera is set up and turned on before lubrication and maintenance to take pictures of the rust and broken strands of the oil pumping unit braids. After the maintenance operation of the day is completed, the broken wires and strands of the oil pumping unit braids are checked on the computer. At the same time, the damaged braids are replaced in time according to the service life. Prevent the braids from breaking and ensure the normal operation of the pumping wells. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a specific implementation of the oil pumping unit braid lubrication device provided by the present invention;

[0019] Figure 2 for Figure 1 A partial enlarged view of the outer sleeve and inner sleeve positions.

[0020] Figure 1-2 The accompanying drawings are denoted as follows:

[0021] 1 telescopic handle rod, 2 vertical channel, 3 first vertical notch, 4 oil inlet hole, 5 outer sleeve, 6 inner sleeve, 7 second vertical notch, 8 circumferential through groove, 9 pull rod, 10 hand nut, 11 U-shaped connecting frame, 12 camera, 13 vehicle-mounted skid, 14 lubricating oil tank, 15 lubricating oil pump. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below.

[0023] The present invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein and still achieve the beneficial effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation of the present invention.

[0024] For the sake of clarity, not all features of the actual embodiments are described. In the following description, well-known functions and structures are not described in detail because they would obscure the present invention with unnecessary details. It should be recognized that in the development of any actual embodiment, a large number of implementation details must be made to achieve the specific goals of the developer.

[0025] In order to make the purpose and features of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0026] The present invention provides a lubricating device for oil pumping unit hair braids, such as Figure 1-2 As shown, it includes a telescopic handle rod 1, a ring body is fixed on the top of which, the ring body includes a vertical channel 2 passing through the upper and lower ends thereof, a first vertical notch 3 is formed on the ring body, which passes through the side wall thereof and is connected to the vertical channel, the first vertical notch 3 extends up and down to the upper and lower ends of the ring body respectively, and the width of the first vertical notch 3 is greater than the diameter of the hair braid to be lubricated, the first vertical notch 3 has an open state and a closed state, in the open state the first vertical notch 3 is open, in the closed state the first vertical notch 3 is closed so that the hair braid to be lubricated is accommodated and embraced in the vertical channel 2, in the closed state there is a gap between the hair braid to be lubricated and the ring body so that the two can rotate relative to each other or slide relative to each other up and down, and also includes an oil inlet hole 4 passing through the side wall of the ring body and connected to the vertical channel 2, the oil inlet hole 4 is connected to an oil supply source.

[0027] When in use, in the open state, the braid to be lubricated is passed from the first vertical notch 3 into the vertical channel 2, and in the closed state, the oil supply source supplies oil to the oil inlet 4, and the retractable handle rod 1 is controlled to control the relative rotation or relative sliding of the encircling body and the braid, so as to achieve lubrication of the braid on the ground. The lubrication and maintenance operation time can be shortened from 30 minutes in the prior art to within 10 minutes, reducing the downtime of the well, improving the production time efficiency, and at the same time, the electric drive method greatly reduces the labor intensity of personnel operation. The lubrication method is more reasonable, and can complete 360-degree all-round maintenance, extend the service life of the braid, and ensure the normal operation of the pumping well.

[0028] In a specific implementation manner, Figure 2As shown, the embracing body is an outer sleeve 5 having the first vertical notch 3, an inner sleeve 6 is sleeved inside the outer sleeve 5 and rotatably arranged therewith, the inner sleeve 6 includes an inner vertical channel running through the upper and lower ends thereof, the inner sleeve 6 also forms a second vertical notch 7 running through the side wall thereof and connected to the inner vertical channel, the width of the second vertical notch 7 is greater than the diameter of the hair braid to be lubricated, the open state is formed when the second vertical notch 7 is rotated to the position where the first vertical notch 3 is located, the closed state is formed when the second vertical notch 7 is rotated to the position away from the first vertical notch 3 and the side wall of the inner sleeve 6 closes the second vertical notch 7, the outer sleeve 5 is relative to its A circumferential through groove 8 penetrating the side wall is provided at the side wall position of the first vertical notch 3, and a pull rod 9 is inserted in the circumferential through groove 8. One end of the pull rod 9 is fixedly connected to the outer wall of the inner sleeve 6 adjacent to its second vertical notch 7, and the other end extends outward from the circumferential through groove 8, and an external thread is arranged on the extended part of the pull rod, and also includes a hand-tightened nut 10 sleeved on the external thread. In the open state, the pull rod 9 is located at one end position adjacent to the circumferential through groove 8, and in the closed state, the pull rod 9 is located at the other end position adjacent to the circumferential through groove 8. The curvature of the inner side wall at the position of the circumferential through groove 8 on the outer sleeve 5 is the same as the curvature of the outer side wall of the inner sleeve 6.

[0029] The inner and outer sleeves can be rotated relative to each other to realize an open state or a closed state, and the operation is convenient and quick.

[0030] In a specific implementation manner, the outer sleeve 5 and the inner sleeve 6 have the same height in the vertical direction.

[0031] In a specific implementation manner, the oil inlet hole 4 is opened on the side wall located at a lower position of the center of the circumferential through groove 8 .

[0032] like Figure 1 and 2 As shown, it also includes a U-shaped connecting frame 11, and the free ends of the two parallel rods of the U-shaped connecting frame 11 each extend a connecting rod vertically inward, and the two connecting rods are fixed to the two opposite outer side walls of the outer sleeve 5. The middle position of the cross bar of the U-shaped connecting frame 11 connecting the two parallel rods is fixedly connected to the top end of the telescopic handle rod 1.

[0033] like Figure 1 As shown, in a specific embodiment, it also includes a camera 12, which is installed on the U-shaped connecting frame 11 and is facing the vertical channel 2 to capture the hair braids.

[0034] Set up camera 12, turn on the camera before lubrication maintenance, and take pictures of the rust and broken strands of the oil pumping unit braids. After the maintenance operation of the day is completed, play back on the computer to check the broken wires and strands of the oil pumping unit braids. At the same time, arrange timely replacement of damaged braids according to the service life. Prevent the braids from breaking and ensure the normal operation of the oil well.

[0035] In a specific implementation manner, the telescopic handle rod 1 is formed by a plurality of fiberglass straight rods sequentially connected up and down by threads, and the length of each fiberglass straight rod is 1.5 m.

[0036] like Figure 1 As shown, in a specific embodiment, it also includes a vehicle-mounted skid 13, on which a lubricating oil tank 14 and a lubricating oil pump 15 connected to the lubricating oil tank 14 are installed to form the oil supply source, and the outlet of the lubricating oil pump 15 is connected to the oil inlet 4 through a hose.

[0037] The benefits of this device:

[0038] Economic benefits:

[0039] Improve production efficiency: Currently, there are 599 pumping wells in the Oil Production Plant No. 1, and 428 of them are in production. 1) According to the system requirements, the annual plan of the Oil Production Plant No. 1 is to maintain the pumping braids 856 wells. The use of this device can reduce the downtime of each well by 20 minutes on average, and improve the efficiency by 856*20min=17120min. 2) Extend the service life of the braids, reduce the replacement of braids by 10 wells per year, and reduce the downtime by 10*240min=2400min. 3) Reduce the breakage of braids by 2 wells, which can reduce the downtime by 2*480min=960min, and improve the production efficiency by 20480min in total.

[0040] 1. Oil increase benefit: 18020 / 60 / 24*average daily output 5t / T*2646 yuan / ton=166,000 yuan

[0041] 2. Cost savings: Braid material cost 12*2745 yuan / set + special vehicle cost 12*1000 yuan / time = 45,000 yuan

[0042] 3. Safety benefits: reduce the number of blowout accidents and high-altitude operation safety accidents caused by broken braids and damage to wellhead equipment. The safety benefits are 200,000 yuan (one well is reduced per year, and one well is calculated as an economic loss of 200,000 yuan).

[0043] Annual economic benefits: oil increase benefit 166,000 yuan + material cost saving 45,000 yuan + safety benefit 200,000 yuan - investment cost 0.5 = 406,000 yuan.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention, so the above is only an embodiment of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention also includes various equivalent changes and improvements, which will fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lubricating device for oil pumping unit hair braid, characterized in that: It includes a telescopic handle rod, a ring body is fixed on the top of which, the ring body includes a vertical channel passing through the upper and lower ends thereof, a first vertical notch is formed on the ring body, passing through the side wall thereof and connected to the vertical channel, the first vertical notch extends up and down to the upper and lower ends of the ring body respectively, and the width of the first vertical notch is greater than the diameter of the hair braid to be lubricated, the first vertical notch has an open state and a closed state, in the open state the first vertical notch is open, in the closed state the first vertical notch is closed so that the hair braid to be lubricated is accommodated and embraced in the vertical channel, in the closed state there is a gap between the hair braid to be lubricated and the ring body so that the two can rotate relative to each other or slide relative to each other up and down, and also includes an oil inlet hole passing through the side wall of the ring body and connected to the vertical channel, the oil inlet hole is connected to an oil supply source.

2. The oil pumping unit braid lubrication device according to claim 1, characterized in that: The embracing body is an outer sleeve having the first vertical notch, an inner sleeve is sleeved inside the outer sleeve and is rotatably arranged therewith, the inner sleeve includes an inner vertical channel penetrating through its upper and lower ends, the inner sleeve also forms a second vertical notch penetrating through its side wall and connected to the inner vertical channel, the width of the second vertical notch is greater than the diameter of the hair braid to be lubricated, the open state is formed when the second vertical notch is rotated to the position where the first vertical notch is located, the closed state is formed when the second vertical notch is rotated to a position away from the position where the first vertical notch is located and the side wall of the inner sleeve closes the second vertical notch, the outer sleeve is relative to its first vertical notch A circumferential through groove is opened at the side wall position of a vertical notch and passes through the side wall, and a pull rod is inserted into the circumferential through groove, one end of the pull rod is fixedly connected to the outer wall of the inner sleeve adjacent to its second vertical notch, and the other end extends outward from the circumferential through groove and an external thread is arranged on the extended part of the pull rod, and also includes a hand-tightened nut sleeved on the external thread, in the open state, the pull rod is located at one end position adjacent to the circumferential through groove, and in the closed state, the pull rod is located at the other end position adjacent to the circumferential through groove, and the curvature of the inner side wall at the position of the circumferential through groove on the outer sleeve is the same as the curvature of the outer side wall of the inner sleeve.

3. The oil pumping unit braid lubrication device according to claim 2, characterized in that: The outer sleeve and the inner sleeve have the same height in the vertical direction.

4. The oil pumping unit braid lubrication device according to claim 2, characterized in that: The oil inlet hole is opened on the side wall at a lower position of the center of the circumferential through groove.

5. The oil pumping unit braid lubrication device according to claim 2, characterized in that: It also includes a U-shaped connecting frame, wherein the free ends of the two parallel rod bodies of the U-shaped connecting frame each extend a connecting rod vertically inward, and the two connecting rods are fixed to the two opposite outer side walls of the outer sleeve, and the middle position of the cross bar of the U-shaped connecting frame connecting the two parallel rod bodies is fixedly connected to the top end of the retractable handle rod.

6. The oil pumping unit braid lubrication device according to claim 5, characterized in that: It also includes a camera, which is installed on the U-shaped connecting frame and can shoot the hair braids facing the vertical channel.

7. The oil pumping unit braid lubrication device according to claim 1, characterized in that: The retractable handle bar is formed by a plurality of fiberglass straight bars sequentially connected up and down by threads, and the length of each fiberglass straight bar is 1.5 m.

8. The oil pumping unit braid lubrication device according to claim 1, characterized in that: It also includes a vehicle-mounted skid, on which a lubricating oil tank and a lubricating oil pump connected to the lubricating oil tank are installed to form the oil supply source, and the outlet of the lubricating oil pump is connected to the oil inlet hole through a hose.

Images