Special power sledge for coiled tubing reversing operation

Abstract

The utility model discloses a special power sledge for coiled tubing reversing operation. The special power sledge comprises a power system, a hydraulic system, a control system, a display system, a video monitoring system, a lighting system and two electric pipe reeling devices which are arranged in a container, the special power sledge for the coiled tubing pouring operation is designed for the pouring operation, the pouring operation can be completed in fixed places such as a base without stopping the operation on a construction site, and the related pouring operation comprises pouring of a new coiled tubing onto a working roller, pouring of an old coiled tubing onto a transportation roller, replacement of coiled tubing with different pipe diameters and the like. Special power is provided for frequent coiled tubing reversing operation, the construction efficiency is improved, the device does not conflict with a construction site, the traffic transportation risk possibly caused by equipment carrying is reduced, resources are reasonably distributed, and the purposes of saving cost and reducing consumption are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coiled tubing well repair operations, in particular to a special power skid for coiled tubing pipe reverse operations. Background Art

[0002] With the rapid development of coiled tubing technology, coiled tubing technology is increasingly being applied to oil and gas field development. The original outer diameter of coiled tubing has developed from 0.75", to 1", 1.25", 1.5", 1.75", 2", 2.3 / 8", 2.7 / 8", 3.5", and is widely used in coiled tubing drilling, wellbore treatment, reservoir transformation, well repair, drilling plug, testing, completion, etc. The domestic consumption of coiled tubing has reached an annual consumption of 18,000 tons, about 1,200 coils.

[0003] In continuous tubing operations, pipe pouring refers to the process of pouring new continuous tubing from the transport drum to the working drum after it arrives on site. In addition, when the service life of the continuous tubing reaches the scrap standard or due to different requirements of the construction well, it is necessary to replace the continuous tubing with a different diameter through pipe pouring. Therefore, pipe pouring is a frequent operation.

[0004] The pipe-reversing operation is completed by the cooperation of a power unit including a hydraulic system, a pipe-reversing device, a transport roller and a working roller, and the area of ​​the work site is strictly required, so the pipe-reversing operation is generally carried out in a fixed place. At present, when performing pipe-reversing operations, the power unit at the construction site must be returned to the factory, and after the pipe-reversing operation is completed, it must be returned to the construction site for continuous tubing construction; this operation not only causes the construction site to be stopped, but also poses a traffic risk during equipment transportation. In addition, unlike the construction site operation, the pipe-reversing operation requires high power to overcome the wear resistance of the continuous tubing, the stuck drill, etc., and its power unit only needs to drive the roller to rotate, that is, the power requirement is relatively small; therefore, using the power of the continuous tubing operation at the construction site to drive the pipe-reversing operation will also cause a significant increase in construction costs. Therefore, in the continuous tubing operation, it is necessary to design and equip a special power unit for the pipe-reversing operation. Utility Model Content

[0005] The utility model aims to provide a special power skid for coiled tubing reverse operation to solve the above problem.

[0006] To this end, the technical solution of the utility model is as follows:

[0007] A power skid for coiled tubing reverse operation, comprising a power system, a hydraulic system, a control system and a display system arranged in a container; wherein:

[0008] The power system is composed of an electric motor and a motor controller; the electric motor is electrically connected to an external power source through the motor controller;

[0009] The hydraulic system includes a hydraulic oil pump, a hydraulic oil tank, a main hydraulic distributor, a pipe reverser hydraulic distributor and a working drum hydraulic distributor; wherein the hydraulic oil tank is connected to the oil inlet end of the hydraulic oil pump through a hydraulic pipeline and forms a communication; the main hydraulic distributor has a built-in hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and two oil outlet ends respectively communicated with the hydraulic oil accommodating channel, and an electrically controlled opening and closing valve is provided at the ports of the oil inlet end, the oil return end and each oil outlet end; the oil inlet end of the main hydraulic distributor is connected to the oil outlet end of the hydraulic oil pump through the oil inlet main pipe, and the main hydraulic distributor is connected to the oil outlet end of the hydraulic oil pump through the oil inlet main pipe. The return oil end of the hydraulic distributor is connected to the hydraulic oil tank through the return oil main pipe, and the two oil outlet ends of the main hydraulic distributor are respectively connected to the pipe reverser oil delivery pipe and the working roller oil delivery pipe; the pipe reverser hydraulic distributor is equipped with a hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and six oil outlet ends respectively connected to the hydraulic oil accommodating channel, and electrically controlled opening and closing valves are arranged at the ports of the oil inlet end, the oil return end and each oil outlet end; the oil inlet end of the pipe reverser hydraulic distributor is connected to the other end of the pipe reverser oil delivery pipe, and the return oil end of the pipe reverser hydraulic distributor is connected to the return oil main pipe through a hydraulic pipeline. Connection; among the six oil outlet ends of the hydraulic distributor of the pipe reverser, two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the direction control hydraulic motor on the pipe reverser, the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the hydraulic cylinder of the clamping device on the pipe reverser, and the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the hydraulic motor of the pipe row arm on the pipe reverser; the hydraulic distributor of the working drum is equipped with a hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and six oil outlet ends respectively connected to the hydraulic oil accommodating channel, and the ends of the oil inlet end, the oil return end and each oil outlet end are The outlets are all provided with electric-controlled opening and closing valves; the oil inlet end of the working drum hydraulic distributor is connected to the other end of the working drum oil delivery pipe, and the oil return end of the working drum hydraulic distributor is connected to the oil return main pipe through a hydraulic pipeline; among the six oil outlet ends of the working drum hydraulic distributor, two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the direction control hydraulic motor on the working drum, the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the pipe discharge arm hydraulic motor on the working drum, and the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the lifting hydraulic cylinder on the working drum;

[0010] The control system includes a controller and pressure sensors respectively arranged on hydraulic pipelines connected to each oil outlet port; the controller is respectively electrically connected to each electronically controlled opening and closing valve on the main hydraulic distributor, the pipe reverser hydraulic distributor and the working drum hydraulic distributor, so as to control the opening and closing state and opening size of each electronically controlled opening and closing valve through the controller; each pressure sensor is connected to the controller to feed back the real-time collected pressure value to the controller;

[0011] The display system consists of a display and a server; the server is connected to the controller and each pressure sensor respectively.

[0012] Furthermore, the power skid dedicated to continuous tubing reverse operation also includes a video monitoring system, which is composed of a lifting device, a camera and a pan-tilt head; wherein the lifting device is detachably fixed to the top of the container, and the camera is arranged on the top of the lifting device through the pan-tilt head.

[0013] Furthermore, the power sled dedicated to continuous tubing pipe-turning operations also includes a lighting system, which is composed of lighting lamps arranged on an elevated frame; wherein the elevated frame can be detachably fixed to the top of the container, and the lighting lamps are fixed to the top of the elevated frame.

[0014] Furthermore, the motor adopts a 45kW three-phase asynchronous motor.

[0015] Furthermore, the elevated structure uses a bracket with a height of 4.5m, and the lighting lamps use 100W incandescent lamps.

[0016] Furthermore, the special power skid for continuous tubing reverse operation also includes two electric hose reels arranged in the container; wherein, a hydraulic pipeline for controlling the guide tube device is wound around one electric hose reel, and a hydraulic pipeline for controlling the working drum is wound around the other electric hose reel.

[0017] Furthermore, an anti-theft door and an observation window are provided on the small-sized wall on one side of the container, and observation windows and rolling doors are provided on the large-sized walls on both sides of the container. The rolling doors are provided in front and back of the two electric hose reels; all the observation windows on the container are installed with bulletproof glass, and protective nets are installed on the outside of all windows.

[0018] Compared with the prior art, the special power skid for continuous tubing pipe-turning operation is designed for pipe-turning operation, and can complete the pipe-turning operation at a fixed place such as a base without stopping the operation at the construction site, including the pipe-turning operations involved in pouring new continuous tubing onto the working drum, pouring old continuous tubing onto the transport drum, and replacing continuous tubing with different diameters. It provides special power for frequent continuous tubing pipe-turning operations, improves construction efficiency, does not conflict with the construction site, reduces transportation risks that may be caused by equipment handling, realizes reasonable allocation of resources, and achieves the purpose of saving costs and reducing consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the power skid specially used for coiled tubing reverse operation of the utility model;

[0020] Figure 2 It is a side view of the special power skid for coiled tubing reverse operation of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of a power skid specially used for coiled tubing reverse operation of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.

[0023] See also Figure 1-2 The special power skid for coiled tubing reverse operation includes a power system, a hydraulic system, a control system, a display system, a video monitoring system and a lighting system arranged in a container; wherein,

[0024] The power system consists of an electric motor and a motor controller; specifically, the electric motor adopts a 45kW three-phase asynchronous motor; the electric motor is electrically connected to an external power supply through the motor controller, so that the electric motor can be started and stopped through the motor controller. The electric motor is used to convert electrical energy into mechanical energy, and then drive the hydraulic system to work, thereby providing the required hydraulic energy for the entire system.

[0025] The hydraulic system is used to convert mechanical energy into hydraulic energy during operation, providing power for the normal operation of the entire control system; the hydraulic system specifically includes a hydraulic oil pump, a hydraulic oil tank, a main hydraulic distributor, a pipe reverser hydraulic distributor, and a working drum hydraulic distributor; among them,

[0026] The hydraulic oil tank is connected to the oil inlet end of the hydraulic oil pump through a hydraulic pipeline and forms a communication; the main hydraulic distributor is equipped with a hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and two oil outlet ends respectively connected to the hydraulic oil accommodating channel, and an electric control opening and closing valve is provided at the ports of the oil inlet end, the oil return end and each oil outlet end; the oil inlet end of the main hydraulic distributor is connected to the oil outlet end of the hydraulic oil pump through the oil inlet main pipe, the oil return end of the main hydraulic distributor is connected to the hydraulic oil tank through the oil return main pipe, and the two oil outlet ends of the main hydraulic distributor are respectively connected to the oil delivery pipe of the pipe reverser and the oil delivery pipe of the working drum;

[0027] After derrick hoists and puts in place, the derrick of derrick of clarification on the change of the hydraulic oil pump, is put in place the derrick of clarification on the change of the hydraulic oil pump, and then the derrick of clarification on the change of the hydraulic oil pump, thus makes the derrick of clarification on the change of the hydraulic oil pump be put in place. After the oil pump is in the oil pump, the oil pump with one hand is in the oil pumping state, and the oil pump with one hand is in the oil pumping state, and the oil pump with one hand is in the oil pumping state.

[0028] The working drum hydraulic distributor has a built-in hydraulic oil containing channel, and is provided with an oil inlet end, an oil return end and six oil outlet ends which are respectively connected with the hydraulic oil containing channel, and an electrically controlled opening and closing valve is provided at the oil inlet end, the oil return end and the port of each oil outlet end; the oil inlet end of the working drum hydraulic distributor is connected with the other end of the working drum oil pipeline, and the oil return end of the working drum hydraulic distributor is connected with the return oil main pipe through a hydraulic pipeline; among the six oil outlet ends of the working drum hydraulic distributor, two oil outlet ends are respectively connected with the two hydraulic oil chambers of the direction control hydraulic motor on the working drum through hydraulic pipelines, so as to realize the forward and reverse rotation of the hydraulically driven working drum by controlling the inlet and outlet of the hydraulic oil in the two hydraulic oil chambers of the direction control hydraulic motor on the working drum, thereby realizing the connection after replacement The retraction or release of the oil pipe, that is, out of the well or in the well; the two oil outlet ends are connected with the two hydraulic oil chambers of the hydraulic motor of the pipe-loading arm on the working drum through hydraulic pipelines, so as to realize the forward or reverse rotation of the diamond shaft of the pipe-loading arm on the hydraulic drum by hydraulically driving the working drum through the inlet and outlet control of the hydraulic oil in the two hydraulic oil chambers of the hydraulic motor of the pipe-loading arm on the working drum, and then realize the left and right sliding action of the pipe-loading arm through the diamond shaft to complete the pipe loading; the two oil outlet ends are connected with the two hydraulic oil chambers of the lifting hydraulic cylinder on the working drum through hydraulic pipelines, so as to realize the ascent or descent of the lifting device on the hydraulic drum by hydraulically driving the working drum through the inlet and outlet control of the hydraulic oil in the two hydraulic oil chambers of the lifting hydraulic cylinder on the working drum, and then realize the height adjustment of the working drum, so that the continuous oil pipe is in the optimal pipe-reversing state.

[0029] The control system is the execution system of the entire pipe-reversing operation, which includes a controller and pressure sensors respectively arranged on the hydraulic pipelines connected to each oil outlet port; wherein,

[0030] The controller is electrically connected to each of the electric-controlled opening and closing valves on the main hydraulic distributor, the pipe reverser hydraulic distributor and the working drum hydraulic distributor, so as to control the opening and closing state and the opening size of each of the electric-controlled opening and closing valves through the controller, thereby realizing the flow direction of the hydraulic oil in different hydraulic chambers, that is, controlling the pipe guide and the working drum to perform designated actions; wherein, by adjusting the opening size of the electric-controlled opening and closing valve, the speed of the corresponding operation action in the pipe laying operation can be controlled;

[0031] Each pressure sensor monitors the pressure of the hydraulic oil output from each oil outlet port in real time to monitor the oil pressure of each hydraulic pipeline in real time; at the same time, each pressure sensor is connected to the controller respectively to feed back the real-time collected pressure value to the controller to assist the controller in adjusting the opening size of each electronically controlled opening and closing valve.

[0032] The display system consists of a display and a server; the server is connected to the pressure sensors installed on each hydraulic pipeline to obtain the pressure value of each pressure sensor in real time; the display is connected to the server to display the pressure value of each hydraulic pipeline in real time; the server is also connected to the controller to enable the staff to manually control the control, and collect the opening and closing status of each electronically controlled opening and closing valve in real time for display on the display.

[0033] The video monitoring system consists of a lifting device, a camera and a pan-tilt head; the lifting device can be detachably fixed on the top of the power sled, and the camera is set on the top of the lifting device through the pan-tilt head; in actual use, by adjusting the height of the lifting device, the camera can effectively collect real-time images of the catheter operation process, and the pan-tilt head is used to adjust the image acquisition angle of the camera to meet the image acquisition requirements of different heights and different orientations.

[0034] The lighting system consists of lighting lamps installed on an elevated structure; the elevated structure is installed on the top of the power skid, and specifically adopts a bracket with a height of 4.5m; the lighting lamps are fixed on the top of the elevated structure, and specifically adopt 100W incandescent lamps to meet the requirements of lighting on the pipe-reversing operation site; the lighting system is used to meet the lighting requirements for nighttime construction.

[0035] See also Figure 1 Two electric hose reels 5 are also provided in the container 1; one electric hose reel 5 is wound with a hydraulic pipeline for controlling the guide tube, and the other electric hose reel 5 is wound with a hydraulic pipeline for controlling the working drum. The two electric hose reels 5 are used to wind and store the hydraulic pipelines connected to the hose reel and the working drum in the hydraulic system respectively after completing the pipe reeling operation, so as to be used for the next pipe reeling operation.

[0036] See also Figure 1 and Figure 2 On one side of the container 1, a small-sized wall is provided with an anti-theft door 2 and an observation window 3 for the staff to use. On the large-sized walls on both sides of the container 1, observation windows 3 and rolling doors 4 are provided. The rolling doors 4 are provided on the front and back of the two electric hose reels. Among them, the anti-theft door 2 is used to facilitate the operator to enter and exit the container 1 to complete the catheter operation control. The observation window 3 is used to increase indoor lighting and facilitate observation of the situation outside the container 1. The rolling door 4 is used to close the front and rear openings of the electric hose reel 5 after transportation or stopping construction to prevent dust from entering. In addition, all observation windows 3 on the container 1 are made of bulletproof glass, and protective nets are installed on the outside of all windows to prevent the operator from being injured by bullets due to broken pipes during the pipe reversing process. When using the special power sled for continuous oil pipe reversing operations to perform catheter operations, the power sled should be moved to the back of the working drum, so that the operator can observe the catheter operation while controlling it in the power sled.

Claims

1. A special power skid for coiled tubing reverse operation, characterized in that: It includes a power system, a hydraulic system, a control system and a display system arranged in a container; wherein, The power system is composed of an electric motor and a motor controller; the electric motor is electrically connected to an external power source through the motor controller; The hydraulic system includes a hydraulic oil pump, a hydraulic oil tank, a main hydraulic distributor, a pipe reverser hydraulic distributor and a working drum hydraulic distributor; wherein the hydraulic oil tank is connected to the oil inlet end of the hydraulic oil pump through a hydraulic pipeline and forms a communication; the main hydraulic distributor has a built-in hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and two oil outlet ends respectively communicated with the hydraulic oil accommodating channel, and an electrically controlled opening and closing valve is provided at the ports of the oil inlet end, the oil return end and each oil outlet end; the oil inlet end of the main hydraulic distributor is connected to the oil outlet end of the hydraulic oil pump through the oil inlet main pipe, and the main hydraulic distributor is connected to the oil outlet end of the hydraulic oil pump through the oil inlet main pipe. The return oil end of the hydraulic distributor is connected to the hydraulic oil tank through the return oil main pipe, and the two oil outlet ends of the main hydraulic distributor are respectively connected to the pipe reverser oil delivery pipe and the working roller oil delivery pipe; the pipe reverser hydraulic distributor is equipped with a hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and six oil outlet ends respectively connected to the hydraulic oil accommodating channel, and electrically controlled opening and closing valves are arranged at the ports of the oil inlet end, the oil return end and each oil outlet end; the oil inlet end of the pipe reverser hydraulic distributor is connected to the other end of the pipe reverser oil delivery pipe, and the return oil end of the pipe reverser hydraulic distributor is connected to the return oil main pipe through a hydraulic pipeline. Connection; among the six oil outlet ends of the hydraulic distributor of the pipe reverser, two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the direction control hydraulic motor on the pipe reverser, the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the hydraulic cylinder of the clamping device on the pipe reverser, and the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the hydraulic motor of the pipe row arm on the pipe reverser; the hydraulic distributor of the working drum is equipped with a hydraulic oil accommodating channel, and is provided with an oil inlet end, an oil return end and six oil outlet ends respectively connected to the hydraulic oil accommodating channel, and the ends of the oil inlet end, the oil return end and each oil outlet end are The outlets are all provided with electric-controlled opening and closing valves; the oil inlet end of the working drum hydraulic distributor is connected to the other end of the working drum oil delivery pipe, and the oil return end of the working drum hydraulic distributor is connected to the oil return main pipe through a hydraulic pipeline; among the six oil outlet ends of the working drum hydraulic distributor, two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the direction control hydraulic motor on the working drum, the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the pipe discharge arm hydraulic motor on the working drum, and the two oil outlet ends are respectively used to communicate with the two hydraulic oil chambers of the lifting hydraulic cylinder on the working drum; The control system includes a controller and pressure sensors respectively arranged on hydraulic pipelines connected to each oil outlet port; the controller is respectively electrically connected to each electronically controlled opening and closing valve on the main hydraulic distributor, the pipe reverser hydraulic distributor and the working drum hydraulic distributor, so as to control the opening and closing state and opening size of each electronically controlled opening and closing valve through the controller; each pressure sensor is connected to the controller to feed back the real-time collected pressure value to the controller; The display system consists of a display and a server; the server is connected to the controller and each pressure sensor respectively.

2. The power skid for coiled tubing reversing operation according to claim 1 is characterized in that: It also includes a video monitoring system, which is composed of a lifting device, a camera and a pan-tilt head; wherein the lifting device is detachably fixed to the top of the container, and the camera is set on the top of the lifting device through the pan-tilt head.

3. The power skid for coiled tubing reverse operation according to claim 1 is characterized in that: It also includes a lighting system, which is composed of lighting lamps arranged on an elevated frame; wherein the elevated frame can be detachably fixed on the top of the container, and the lighting lamps are fixed on the top of the elevated frame.

4. The power skid for coiled tubing reverse operation according to claim 1 is characterized in that: The motor uses a 45kW three-phase asynchronous motor.

5. The power skid for coiled tubing reverse operation according to claim 1 is characterized in that: The elevated structure uses a 4.5m high bracket and 100W incandescent lamps for lighting.

6. The power skid for coiled tubing reversing operation according to claim 1 is characterized in that: It also includes two electric hose reels arranged in the container; wherein a hydraulic pipeline for controlling the guide tube device is wound around one electric hose reel, and a hydraulic pipeline for controlling the working drum is wound around the other electric hose reel.

7. The power skid for coiled tubing reversing operation according to claim 6 is characterized in that: An anti-theft door and an observation window are set on the small-sized wall on one side of the container, and observation windows and rolling doors are set on the large-sized walls on both sides of the container. The rolling doors are set on the front and back of the two electric hose reels; all the observation windows on the container are installed with bulletproof glass, and protective nets are installed on the outside of all windows.

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