An online cleaning device for oil well operation

Abstract

The present invention proposes an online cleaning device for oil well operations, which relates to the field of oil well operations. The online cleaning device for oil well operations comprises a cleaning device, a conveying device, a moving mechanism, a power device and a supporting assembly, wherein: the cleaning device comprises a connecting pipe, a cleaner, a first connecting rod, a second connecting rod, a first sliding ring and a conveying pipe, the conveying pipe is fixedly connected to the connecting pipe, the first sliding ring is slidably connected to the connecting pipe, the second connecting rod is movably connected to the connecting pipe, one end of the first connecting rod is movably connected to the second connecting rod, and the other end is movably connected to the cleaner, the conveying pipe is connected to the cleaner, the first sliding ring drives the first connecting rod and the second connecting rod to operate, thereby driving the cleaner to move inward and outward, the cleaning device can be used to fit the inner walls of different oil pipes, and the cleaning liquid can also be recovered through the supporting assembly.

Description

Technical Field

[0001] The invention relates to the field of oil well operations, and in particular to an online cleaning device for oil well operations. Background Art

[0002] Minor oil well repairs are the core means of maintaining oilfield production and taking measures to increase production. Cleaning the inner and outer walls of the oil pipe and the sucker rod is the most basic and critical link; during oil well exploitation, the wax and scaling of the oil well and the oil rod are very serious, which gradually reduces the oil flow and even blocks it, resulting in reduced oil well production or even shutdown. As the pressure in the oil pipe increases, it will also increase the load on the downhole pump, shorten the service life of the pump, and affect the normal production of the oil well. Therefore, the quality of cleaning the oil pipe and the sucker rod has an important impact on the subsequent processes, and then affects the cost of using the oil pipe and the quality of the construction work. The choice of cleaning method directly affects the cleaning effect, production cost, repair quality, and safety of the oil pipe.

[0003] In the prior art, application number CN201610619905.6 discloses a device for washing the inner wall of an oil pipe, comprising: a sealing guide, a hose, a tractor, a synchronous winder and a cleaner for the inner wall of an oil pipe, a hydraulic lifting frame and a telescopic rain cover; the sealing guide comprises a housing and a clamp, a drain port is provided on one side of the housing, and the drain port is connected to the underground oil pipeline network through a drain pipe and a recovery pump; the synchronous winder is used to wind the hose, the tractor is provided between the sealing guide and the winder, and the tractor is used to pull the hose; one end of the hose passes through the tractor and is connected to the hose water inlet on the winder; the other end of the hose is connected to the cleaner for the inner wall of an oil pipe. The device for washing the inner wall of an oil pipe provided in this application is a mobile device, which is installed on a vehicle together with a heating furnace during transportation, and is unloaded to a well site by a lifting frame when in use, and the inner wall of the oil pipe is washed in the oil well before the oil pipe is raised from the wellhead. It not only saves water and reduces costs, but also achieves the environmental protection purpose of preventing dirty oil and sewage from falling to the ground. Although the equipment can save water and perform cleaning, it can only perform puncture cleaning on oil pipes of a single size, and it is easy to not clean thoroughly when cleaning the inside of oil pipes of different sizes.

[0004] In view of this, the present invention provides an oil operation online cleaning device, which can adapt to and clean oil pipes of different sizes. Summary of the invention

[0005] In order to solve the problem that the equipment can only perform puncture cleaning on oil pipes of a single size and is prone to incomplete cleaning when cleaning the inside of oil pipes of different sizes, the present invention provides an online cleaning equipment for oil well operations.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention proposes that the online cleaning equipment for oil well operations includes a cleaning device, a conveying device, a moving mechanism, a power device and a supporting assembly, wherein:

[0008] The cleaning device comprises a connecting pipe, a cleaning device, a first connecting rod, a second connecting rod, a first sliding ring and a conveying pipe, wherein the conveying pipe is fixedly connected to the connecting pipe, the first sliding ring is slidably connected to the connecting pipe, the second connecting rod is movably connected to the connecting pipe, one end of the first connecting rod is movably connected to the second connecting rod, and the other end is movably connected to the cleaning device, the conveying pipe is connected to the cleaning device, and the first sliding ring drives the first connecting rod and the second connecting rod to operate so as to drive the cleaning device to move inward and outward;

[0009] The support assembly is used to carry the cleaned liquid and control the direction of the cleaner;

[0010] The conveying device is used to convey the cleaning liquid and recover the cleaning liquid;

[0011] The power device is used to drive the first sliding ring to move;

[0012] The moving mechanism is used to move the cleaning device;

[0013] The oil well operation online cleaning equipment has an adjustable pressure of 0-25 MPA and a flow rate of 0-100 liters per minute.

[0014] Furthermore, the cleaning device includes a connecting member, a rotating member and a cleaning device, one end of the rotating member is rotatably connected to the nozzle, and the connecting member is fixedly connected to the other side of the rotating member.

[0015] Furthermore, the top of the cleaning device is conical, and a plurality of spray holes are provided on the side of the cleaning device, and the spray holes are communicated with the rotating member and the interior of the connecting member.

[0016] Furthermore, the support assembly includes a second sliding ring that is slidably connected to the connecting tube, a mating groove is provided on the side of the connecting piece close to the second sliding ring, a raised portion is provided on the side wall of the second sliding ring, and the raised portion is inserted into the mating groove and movably connected to the mating groove.

[0017] Furthermore, the support assembly also includes a bearing sleeve, which is fixedly connected to the outer side of the connecting piece and the bottom of the connecting pipe, and the bearing sleeve is used to bear the liquid after cleaning.

[0018] Furthermore, the power device includes at least two hydraulic cylinders, the two hydraulic cylinders are fixedly connected to the top of the connecting pipe, and the hydraulic cylinders are used to drive the first sliding ring to move longitudinally.

[0019] Furthermore, a circulation hole is provided at the bottom of the connecting pipe, and a water inlet is provided on one side of the cleaning device close to the connecting pipe, and the water inlet is connected to the delivery pipe.

[0020] Furthermore, the delivery device includes a first delivery pump and a second delivery pump, the first delivery pump is communicated with the interior of the connecting pipe, and the second delivery pump is communicated with the delivery pipe.

[0021] Furthermore, the moving mechanism includes a traction machine, a wire rope and a winder, the traction machine is used to pull the cleaning device to move inside the oil pipe, and the winder is used to drive the cleaning device to move longitudinally.

[0022] Furthermore, it also includes a liquid supply device, which includes a pressurizing device, a heating device and a carrying box. The carrying box is used to contain the cleaning liquid, the heating device is used to heat the cleaning liquid, the heating device is adjustable from 0-150°, and the pressurizing device is used to pressurize the cleaning liquid, and the pressure value of the pressurizing device is adjustable from 0-25MPA.

[0023] Beneficial effects of the present invention:

[0024] (1) The online cleaning equipment for oil well operations proposed in the present invention can carry the liquid after cleaning through the carrying sleeve, and transport it to the outside for recovery through the transporting device. The carrying sleeve can reduce the loss of cleaning liquid and reduce costs.

[0025] (2) When high-pressure liquid is introduced into the cleaning device of the online cleaning equipment for oil well operations proposed by the present invention, the nozzle will rotate relative to the rotating part. The centrifugal effect of the water flow and the driving force of the reverse action will be used to make the cleaning device rotate while spraying water. The high-pressure water flow will form a cross, so that the pipeline can be flushed efficiently.

[0026] (3) The cleaner of the online cleaning equipment for oil well operations proposed in the present invention can be pressed down by the first sliding ring. On the one hand, it can push the nozzle to move outward or inward, making the cleaning more efficient. Secondly, it can also adapt to oil well pipes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall diagram of the online cleaning equipment for oil well operation of the present invention;

[0028] Figure 2 This is a structural diagram of a cleaning device of an online cleaning device for oil well operations of the present invention;

[0029] Figure 3 This is a nozzle structure diagram of the oil well operation online cleaning equipment of the present invention;

[0030] Figure 4This is a structural diagram of the support assembly of the oil well operation online cleaning equipment of the present invention;

[0031] Figure 5 for Figure 4 A magnified view of

[0032] Figure 6 It is an exploded view of the cleaning device of the oil well operation online cleaning equipment of the present invention;

[0033] The implementation, functional features and advantages of the present application will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0035] Please refer to Figure 1-Figure 6 The present invention proposes an online cleaning device for oil well operation, which includes a cleaning device 2, a conveying device 3, a moving mechanism 5, a power device and a supporting assembly 7, wherein:

[0036] The cleaning device 2 includes a connecting pipe 24, a cleaning device 21, a first connecting rod 22, a second connecting rod 23, a first sliding ring 25 and a delivery pipe 26. The delivery pipe 26 is fixedly connected to the connecting pipe 24, the first sliding ring 25 is slidably connected to the connecting pipe 24, the second connecting rod 23 is movably connected to the connecting pipe 24, one end of the first connecting rod 22 is movably connected to the second connecting rod 23, and the other end is movably connected to the cleaning device 21, the delivery pipe 26 is connected to the cleaning device 21, and the first sliding ring 25 drives the first connecting rod 22 and the second connecting rod 23 to operate, thereby driving the cleaning device 21 to move inward and outward;

[0037] The support assembly 7 is used to carry the cleaned liquid and control the direction of the cleaning device 21;

[0038] The conveying device 3 is used to convey the cleaning liquid and recover the cleaning liquid;

[0039] The power device is used to drive the first sliding ring 25 to move;

[0040] The moving mechanism 5 is used to move the cleaning device 2;

[0041] The pressure of online cleaning equipment for oil well operations is 0-25MPA, and the flow rate is adjustable from 0-100 liters per minute.

[0042] In this embodiment, the online cleaning equipment for oil well operations is more compact and more intelligent. The lower part of the connecting pipe 24 is made of metal, and the upper part is made of hose material. The delivery pipe 26 is also made of hose material. Two branches of the delivery pipe 26 are connected to the hydraulic cylinder 8, and the remaining branches are connected to the cleaner 21. The first sliding ring 25 moves downward, driving the first connecting rod 22 to move outward and downward. The flow hole 241 at the bottom of the delivery pipe 26 allows liquid to enter the interior of the connecting pipe 24. The liquid is delivered to the cleaner 21 and the hydraulic cylinder 8 through the second delivery pump 32. The hydraulic cylinder 8 pushes the first sliding ring 25 to move, and then the cleaner 21 on the first connecting rod 22 also moves outward and downward, and fits with the wall of the oil pipe 1. While fitting, The washer 21 sprays out high-pressure and high-temperature cleaning liquid. Since the water tank inside the spray hole 2111 of the nozzle 211 of the washer 21 is set obliquely, the washer 21 will rotate relative to the rotating part 212. The centrifugal effect of the water flow and the push of the reverse force make the washer 21 rotate while spraying water. The high-pressure water flow forms a cross, which can efficiently flush the pipeline. The liquid after cleaning will fall into the inside of the supporting sleeve 71, and then be transported to the outside through the flow hole 241 at the bottom of the connecting pipe 24 and the first delivery pump 31 to complete the cleaning and recovery of the cleaning liquid. Since the spray hole 2111 is arranged around the nozzle 211, the oil stains on the first connecting rod 22 and the second connecting rod 23 can also be cleaned.

[0043] In this embodiment, the cleaner 21 includes a connecting member 213, a rotating member 212 and a nozzle 211. One end of the rotating member 212 is rotatably connected to the nozzle 211, and the connecting member 213 is fixedly connected to the other side of the rotating member 212. The top of the nozzle 211 is conical, and a plurality of spray holes 2111 are provided on the side of the nozzle 211. The spray holes 2111 are connected to the rotating member 212 and the interior of the connecting member 213.

[0044] During specific implementation: the liquid enters the rotating part 212 from the hole in the center of the connecting part 213, and then enters the cleaning device 21 from the rotating part 212. When it is sprayed to the outside from the spray hole 2111, since the groove inside the spray hole 2111 is set obliquely, the cleaning device 21 will rotate relative to the rotating part 212. By utilizing the centrifugal effect of the water flow and the push of the reverse force, the cleaning device 21 can rotate while spraying water, and the high-pressure water flow forms a cross, which can efficiently flush the pipeline.

[0045] In this embodiment, the support assembly 7 includes a second sliding ring 72 that is slidably connected to the connecting tube 24. A mating groove 2131 is provided on the side of the connecting piece 213 close to the second sliding ring 72. A protruding portion 721 is provided on the side wall of the second sliding ring 72. The protruding portion 721 is movably connected to the mating groove 2131 and the mating groove 2131.

[0046] In specific implementation: the raised portion 721 of the second sliding ring 72 is inserted into the matching groove 2131 on the connecting piece 213. When the first connecting rod 22 and the second connecting rod 23 drive the cleaning device 21 to move inward and outward, due to the action of the second sliding ring 72, the spray hole 2111 of the nozzle 211 can always face outward, and the cleaning device 21 will not tilt when the second sliding ring 72 and the first sliding ring 25 move. The second sliding ring 72 can stabilize the cleaning device 21 and prevent the cleaning device 21 from tilting.

[0047] In this embodiment, the support assembly 7 further includes a bearing sleeve 71 , which is fixedly connected to the outer side of the connecting member 213 and the bottom of the connecting pipe 24 , and is used to bear the liquid after cleaning.

[0048] During specific implementation: the supporting sleeve 71 can shrink elastically. When the cleaner 21 moves outward under the action of the first connecting rod 22 and the second connecting rod 23, the supporting sleeve 71 will stretch outward. When the cleaner 21 fits the inner wall of the oil pipe 1, the supporting sleeve 71 will also fit the inner wall of the oil pipe 1. The liquid after cleaning by the cleaner 21 will flow along the inside of the supporting sleeve 71 to the bottom of the connecting pipe 24, and then the external conveying device 3 will extract the liquid at the bottom of the connecting pipe 24 from the flow hole 241 of the connecting pipe 24, thereby completing the recovery of the cleaning liquid.

[0049] In this embodiment, the power device includes at least two hydraulic cylinders 8, and the two hydraulic cylinders 8 are fixedly connected to the top of the connecting pipe 24. The hydraulic cylinders 8 are used to drive the first sliding ring 25 to move longitudinally.

[0050] During specific implementation: the output ends of the two hydraulic cylinders 8 move longitudinally with the first sliding ring 25, and the hydraulic cylinders 8 move longitudinally to drive the first sliding ring 25 to move outward. The sliding ring is driven to move by the two hydraulic cylinders 8, thereby driving the cleaner 21 to move inward and outward, thereby fitting the inner wall of the oil pipe 1, and the cleaner 21 cleans the pipe wall more completely and thoroughly.

[0051] In this embodiment, a flow hole 241 is provided at the bottom of the connecting pipe 24 , and a water inlet 2132 is provided on one side of the cleaning device 21 close to the connecting pipe 24 . The water inlet 2132 is communicated with the delivery pipe 26 .

[0052] During the specific implementation: the external conveying device 3 extracts the liquid at the bottom of the connecting pipe 24 from the flow hole 241 of the connecting pipe 24, thereby completing the recovery of the cleaning liquid. The cleaning liquid flows from the conveying pipe 26 to the water inlet 2132, and then is sprayed out from the nozzle 211 of the cleaner 21 to complete the cleaning of the oil pipe 1 and the recovery of the liquid after the oil pipe 1 is cleaned.

[0053] In this embodiment, the delivery device 3 includes a first delivery pump 31 and a second delivery pump 32 . The first delivery pump 31 is communicated with the interior of the connecting pipe 24 , and the second delivery pump 32 is communicated with the delivery pipe 26 .

[0054] During specific implementation: the first delivery pump 31 can deliver the cleaning liquid after cleaning to the outside, the second delivery pump 32 can deliver the cleaning liquid to the hydraulic cylinder 8 and the washer 21 at the same time, the washer 21 sprays the liquid and cleans the oil well pipe wall, and the cleaning liquid after cleaning is delivered to the outside through the first delivery pump 31, thereby completing the circulation of the cleaning liquid. When the cleaning device 2 penetrates into the appropriate position of the oil pipe 1, the second delivery pump 32 delivers the cleaning liquid to the hydraulic cylinder 8 and the washer 21 at the same time. When the hydraulic cylinder 8 operates to drive the washer 21 to fit the inner wall of the oil pipe 1, the washer 21 cleans the inner wall of the oil pipe 1 at the same time.

[0055] In this embodiment, the moving mechanism 5 includes a traction machine 53, a wire rope 51 and a winder 52. The traction machine 53 is used to pull the cleaning device 2 to move into the oil pipe 1, and the winder 52 is used to drive the cleaning device 2 to move longitudinally.

[0056] During the specific implementation: the traction machine 53 pulls the cleaning device 2 to the top of the oil well through the wire rope 51, and then the winder 52 winds up the wire rope, so that the cleaning device 2 can smoothly enter the oil pipe 1 of the oil well and complete the cleaning. After the cleaning is completed, it can be smoothly taken out by the traction machine 53 and the winder 52.

[0057] In this embodiment, a liquid supply device 4 is also included, and the liquid supply device 4 includes a pressurizing device 43, a heating device 42 and a carrying box 41. The carrying box 41 is used to contain the cleaning liquid. The heating device 42 can be adjusted by 0-150 degrees. The pressurizing device is used to pressurize the cleaning liquid. The pressure value of the pressurizing device 43 is adjustable by 0-25MPA.

[0058] In specific implementation: the carrying box 41 is used to contain the cleaning liquid, the heating device 42 can adjust the temperature of 0-100°C, the cleaning liquid is heated and then passes through the pressurizing device 43, the pressurizing device 43 can adjust 0-25MPA, and the pressurizing device 43 pressurizes the liquid to spray it out of the cleaner 21, thereby completing the efficient cleaning of the inside of the oil pipe 1.

[0059] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. An online cleaning device for oil well operation, characterized in that: The oil well operation online cleaning equipment comprises a cleaning device, a conveying device, a moving mechanism, a power device and a supporting assembly, wherein: The cleaning device comprises a connecting pipe, a cleaning device, a first connecting rod, a second connecting rod, a first sliding ring and a conveying pipe, wherein the conveying pipe is fixedly connected to the connecting pipe, the first sliding ring is slidably connected to the connecting pipe, the second connecting rod is movably connected to the connecting pipe, one end of the first connecting rod is movably connected to the second connecting rod, and the other end is movably connected to the cleaning device, the conveying pipe is connected to the cleaning device, and the first sliding ring drives the first connecting rod and the second connecting rod to operate so as to drive the cleaning device to move inward and outward; The support assembly is used to carry the cleaned liquid and control the direction of the cleaner; The conveying device is used to convey the cleaning liquid and recover the cleaning liquid; The power device is used to drive the first sliding ring to move; The moving mechanism is used to move the cleaning device; The oil well operation online cleaning equipment is more compact and intelligent, with an adjustable pressure of 0-25MPa and a flow rate of 0-100 liters per minute; The cleaning device comprises a connecting member, a rotating member and a nozzle, one end of the rotating member is rotatably connected to the nozzle, and the other end of the rotating member is fixedly connected to the connecting member; The top of the cleaning device is conical, and a plurality of spray holes are provided on the side of the spray head, and the spray holes are connected with the rotating part and the inside of the connecting part; The support assembly comprises a second sliding ring slidably connected to the connecting pipe, a matching groove is provided on a side of the connecting piece close to the second sliding ring, a convex portion is provided on a side wall of the second sliding ring, and the convex portion is inserted into the matching groove and movably connected to the matching groove; The support assembly further includes a bearing sleeve, which is fixedly connected to the outside of the connecting piece and the bottom of the connecting pipe, and is used to carry the cleaned liquid; The bearing sleeve can be elastically shrunk.

2. The oil well operation online cleaning equipment according to claim 1, characterized in that: The power device comprises at least two hydraulic cylinders, the two hydraulic cylinders are fixedly connected to the top of the connecting pipe, and the hydraulic cylinders are used to drive the first sliding ring to move longitudinally.

3. The online cleaning equipment for oil well operations according to claim 1, characterized in that: A flow hole is provided at the bottom of the connecting pipe, and a water inlet is provided at one side of the cleaning device close to the connecting pipe, and the water inlet is communicated with the delivery pipe.

4. The online cleaning equipment for oil well operations according to claim 1, characterized in that: The delivery device includes a first delivery pump and a second delivery pump, wherein the first delivery pump is connected to the interior of the connecting pipe, and the second delivery pump is connected to the delivery pipe.

5. The oil well operation online cleaning equipment according to claim 1, characterized in that: The moving mechanism includes a traction machine, a wire rope and a winder. The traction machine is used to pull the cleaning device to move inside the oil pipe, and the winder is used to drive the cleaning device to move longitudinally.

6. The oil well operation online cleaning equipment according to claim 1, characterized in that: It also includes a liquid supply device, which includes a pressurizing device, a heating device and a carrying box. The carrying box is used to contain the cleaning liquid, and the heating device is used to heat the cleaning liquid. The heating device can adjust the temperature of 0-100°C; the pressurizing device is used to pressurize the cleaning liquid, and the pressure value of the pressurizing device is adjustable from 0 to 25MPa.

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