Coiled tubing operation machine

Abstract

The utility model discloses a continuous pipe operation machine which comprises an energy storage unit, an oil pipe reel and an injection head. The energy storage unit is electrically connected with the oil pipe reel and the injection head, and the energy storage unit can recycle and store electric energy generated by the oil pipe reel and the injection head. The energy storage unit stores electric energy generated by reverse rotation of the driving motor of the injection head and the driving motor of the oil pipe reel for standby application in the process of lowering the coiled tubing through self weight, so that the part of electric energy can be effectively converted and utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of coiled tubing operation equipment, and particularly relates to a coiled tubing operation machine. Background Art

[0002] With the continuous enrichment and improvement of the types of coiled tubing operation machines, coiled tubing tools, and well completion equipment, the advantages of coiled tubing technology have become increasingly obvious. The application scope of coiled tubing technology has covered aspects such as drilling, logging, perforating, stimulation, workover, acidizing, and fracturing. Due to the continuous expansion of the application scope of coiled tubing technology, the coiled tubing operation machine, as its core equipment, has also been given the reputation of "universal operation machine" by the industry.

[0003] In related technologies, when the coiled tubing operation machine is in the coiled tubing lowering working condition, the rotation directions of the injection head drive motor and the tubing reel drive motor are opposite to the directions of their output torques. It is equivalent that the injection head drive motor and the tubing reel drive motor are in the power generation state and will generate a certain amount of electric energy. At this time, the generated electric energy is generally consumed by the braking resistor generating heat, resulting in a waste of electric energy. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a coiled tubing operation machine. Through the setting of an energy storage unit, the electric energy generated by the injection head drive motor and the tubing reel drive motor under the coiled tubing lowering working condition can be stored for later use, realizing the recycling of electric energy.

[0005] The utility model is realized through the following technical solutions:

[0006] A coiled tubing operation machine includes an energy storage unit, a tubing reel, and an injection head; the energy storage unit is electrically connected to the tubing reel and the injection head respectively, and the energy storage unit can recover and store the electric energy generated by the tubing reel and the injection head. To solve the above technical problems and achieve the corresponding technical effects, in the utility model, the energy storage unit can store the electric energy generated by the reverse rotation of the injection head drive motor and the tubing reel drive motor during the process of the coiled tubing being lowered by its own weight for later use, so as to effectively convert and utilize this part of electric energy.

[0007] Further:

[0008] The coiled tubing operation machine further includes an electronic control unit;

[0009] The electronic control unit is electrically connected to the tubing reel and the injection head respectively;

[0010] The energy storage unit supplies power to the electronic control unit.

[0011] Further: The energy storage unit includes a storage battery or a super capacitor.

[0012] Further: The coiled tubing operating machine further includes an external power supply, which is electrically connected to the electronic control unit and supplies power to the electronic control unit.

[0013] Further: The external power supply includes a generator, a power grid, and a fuel cell, and at least one of the generator, the power grid, and the fuel cell is electrically connected to the electronic control unit.

[0014] Further: The coiled tubing operating machine further includes a cable reel;

[0015] The cable reel includes a reel body, a reel support, and a collector slip ring;

[0016] The reel body is rotatably connected to the reel support. The reel body is used for winding the cable. The collector slip ring is coaxially installed on the reel body and supplies power to the cable, and the collector slip ring is electrically connected to the electronic control unit.

[0017] Further: The collector slip ring includes a stator and a rotor. The rotor is coaxially installed on the rotating shaft of the reel body and rotates with the reel body. The rotor is electrically connected to the cable. The stator is sleeved outside the rotor and installed on the reel support. The stator is electrically connected to the electronic control unit, and the stator is used for supplying power to the rotor.

[0018] Further: The coiled tubing operating machine further includes a trailer, and the energy storage unit, the electronic control unit, and the tubing reel are all arranged on the trailer.

[0019] Further: The energy storage unit is electrically connected to the trailer, and the energy storage unit supplies power to the trailer.

[0020] Further: The coiled tubing operating machine further includes a hydraulic station and a monitoring unit;

[0021] The hydraulic station is electrically connected to the electronic control unit;

[0022] The monitoring unit is electrically connected to the electronic control unit.

[0023] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0024] 1. For a coiled tubing operating machine of the present utility model, during the process of the coiled tubing being lowered by its own weight, the energy storage unit can store the electric energy generated by the reverse rotation of the injection head drive motor and the tubing reel drive motor for later use, so that this part of electric energy can be effectively converted and utilized.

[0025] 2. The coiled tubing operating machine of the present utility model, through the setting of the collector slip ring assembly, compared with the original method of directly setting the cable socket on the cable reel, the rotor of the collector slip ring can rotate together with the reel body when the cable is retracted and released, and the cable on the reel body can be wound without unplugging the plug and affecting the electrical connection of the cable.

[0026] 3. The coiled tubing operating machine of the present utility model, the electric energy recovered by the energy storage unit can also be used to supply power to the electric axle of the trailer, and the energy storage unit can be directly arranged on the trailer to improve the integration degree of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts. In the drawings:

[0028] Figure 1 is a schematic diagram of the operating state of the coiled tubing operating machine;

[0029] Figure 2 is a system diagram of the coiled tubing operating machine;

[0030] Figure 3 is a schematic diagram of the partial structure of the trailer;

[0031] Figure 4 is a schematic diagram of the cable reel structure;

[0032] Figure 5 is a schematic diagram of the collector slip ring structure.

[0033] Marks in the drawings and corresponding component names:

[0034] 1 - Electric control unit, 2 - Energy storage unit, 3 - Tubing reel, 4 - Injector head, 5 - Hydraulic station, 6 - Cable reel, 7 - External power supply, 8 - Trailer, 9 - Monitoring unit, 61 - Reel body, 62 - Reel support, 63 - Collector slip ring, 71 - Generator, 72 - Power grid, 73 - Fuel cell, 631 - Stator, 632 - Rotor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with the embodiments and the drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and do not limit the present utility model.

[0036] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to those of ordinary skill in the art that: the present utility model may be practiced without these specific details. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the present utility model.

[0037] Throughout the specification, references to "one embodiment", "an embodiment", "an example", or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Thus, the phrases "one embodiment", "an embodiment", "an example", or "an example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. Additionally, the particular features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art should understand that the diagrams provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0038] In the description of the present utility model, the orientation or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model.

[0039] Embodiment:

[0040] As Figures 1 to 3 shown, a coiled tubing operation machine of the present utility model includes an energy storage unit 2, a tubing reel 3, an injector head 4, an electric control unit 1, a hydraulic station 5, and a monitoring unit 9. Among them, the energy storage unit 2 is electrically connected to the tubing reel 3 and the injector head 4 respectively, the energy storage unit 2 can recover and store the electric energy generated by the tubing reel 3 and the injector head 4, the electric control unit 1 is electrically connected to the tubing reel 3 and the injector head 4 respectively, the hydraulic station 5 is electrically connected to the electric control unit 1; the monitoring unit 9 is electrically connected to the electric control unit 1.

[0041] During the process of lowering the coiled tubing, the coiled tubing can complete the lowering work under its own gravity. During this process, the rotation directions of the drive motors of the tubing reel 3 and the injector head 4 are both opposite to the directions of their output torques, which is equivalent to the drive motors being in a power generation condition and generating a certain amount of electrical energy. In the related art, a braking resistor is set, and this part of the electrical energy is consumed by the heat generated by the braking resistor, resulting in poor utilization of this part of the electrical energy. Therefore, in this embodiment, an energy storage unit 2 is added to recover and store this part of the electrical energy, and the electrical energy recovered and stored by the electrical energy storage unit 2 can supply power to the entire coiled tubing operation machine, or supply power to a certain device (such as the electronic control unit 1) inside the coiled tubing operation machine, or supply power to other electrical devices outside the coiled tubing operation machine. As an exemplary implementation manner, the energy storage unit 2 can be a storage battery or a super capacitor to facilitate the recovery and storage of electrical energy. In the related art, a super capacitor, also known as an electrochemical capacitor, is a power source with special properties between a traditional capacitor and a battery, and mainly stores electrical energy by means of an electric double layer and redox pseudo charges.

[0042] In addition, the coiled tubing operation machine further includes an electronic control unit 1; the electronic control unit 1 is electrically connected to the tubing reel 3 and the injector head 4 respectively; the energy storage unit 2 supplies power to the electronic control unit 1, and at the same time the electronic control unit 1 can supply power to other devices of the coiled tubing operation machine.

[0043] In the present disclosure, the power source of the electronic control unit 1 is not limited to the energy storage unit 2, and it can also be powered by other power sources. Optionally, the coiled tubing operation machine further includes an external power supply 7, and the external power supply 7 is electrically connected to the electronic control unit 1 and supplies power to the electronic control unit 1. Specifically, the external power supply 7 includes a generator 71, a power grid 72, and a fuel cell 73, and at least one of the generator 71, the power grid 72, and the fuel cell 73 is electrically connected to the electronic control unit 1. In other words, any one of the generator 71, the power grid 72, and the fuel cell 73 can be electrically connected to the electronic control unit 1 and supply power to the electronic control unit 1; or, any two combinations of the generator 71, the power grid 72, and the fuel cell 73 can be respectively electrically connected to the electronic control unit 1 and supply power to the electronic control unit 1; or, all three of the generator 71, the power grid 72, and the fuel cell 73 are electrically connected to the electronic control unit 1 and supply power to the electronic control unit 1. It should be noted that when taking power from the power grid 72, a substation (substation equipment) needs to be set between the power grid 72 and the electronic control unit 1 to convert the high voltage into a low voltage that the equipment can normally use for the use of the electronic control unit 1.

[0044] Such as Figure 4 、 Figure 5As shown in the figure, the coiled tubing operating machine further includes a cable reel. The cable reel 6 includes a reel body 61, a reel support 62, and a collector slip ring 63. Specifically, the reel body 61 is rotatably connected to the reel support 62. The reel body 61 is used for winding the cable. The collector slip ring 63 is coaxially installed on the reel body 61 and supplies power to the cable. The collector slip ring 63 is electrically connected to the electronic control unit 1. In this embodiment, the collector slip ring 63 is used instead of the traditional cable socket. The function of the collector slip ring 63 is equivalent to a rotary joint, which can avoid the need to plug and unplug the plug of the cable reel during installation and disassembly in the case of the original cable socket, thereby reducing the on-site operation workload and saving the installation time. The specific structure of the collector slip ring 63 is as follows. The collector slip ring 63 includes a stator 631 and a rotor 632. The rotor 632 is coaxially installed on the rotating shaft of the reel body 61 and rotates with the reel body 61. The rotor 632 is electrically connected to the cable. The stator 631 is sleeved outside the rotor 632 and installed on the reel support 62. The stator 631 is electrically connected to the electronic control unit 1. The stator 631 is used to supply power to the rotor 632. Based on the above structure, during the winding and unwinding process of the cable, the rotor 632 can rotate with the reel body 61, and the stator 631 does not rotate with the reel body 61. Since the electronic control unit 1 supplies power to the stator 631, the stator 631 can supply power to the rotor 632 to realize the power supply from the electronic control unit 1 to the cable when the reel body 61 rotates, without affecting the electrical connection between the electronic control unit 1 and the cable.

[0045] As Figure 1 、 Figure 3 shown in the figure, the coiled tubing operating machine further includes a trailer 8. The energy storage unit 2, the electronic control unit 1, and the tubing reel 3 are all arranged on the trailer 8 to facilitate the integration and transportation of the equipment. As an exemplary implementation manner, the trailer 8 can be driven by a motor, and the trailer 8 motor can be powered by the energy storage unit 2.

[0046] The above specific implementation manners further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coiled tubing machine, characterized in that: It comprises an energy storage unit (2), an oil pipe reel (3) and an injection head (4); the energy storage unit (2) is electrically connected to the oil pipe reel (3) and the injection head (4) respectively, and the energy storage unit (2) is capable of recovering and storing the electrical energy generated by the oil pipe reel (3) and the injection head (4); It also comprises an electric control unit (1), the electric control unit (1) being electrically connected to the tubing reel (3) and the injection head (4) respectively; the energy storage unit (2) supplies power to the electric control unit (1); It also comprises a cable reel (6), the cable reel (6) comprising a reel body (61), a reel support (62) and a current collecting slip ring (63), the reel body (61) being rotatably connected to the reel support (62), the reel body (61) being used for winding up a cable, the current collecting slip ring (63) being coaxially mounted on the reel body (61) and supplying power to the cable, and the current collecting slip ring (63) being electrically connected to the electric control unit (1).

2. A coiled tubing machine according to claim 1, characterized in that: The energy storage unit (2) comprises a battery or a supercapacitor.

3. The coiled tubing machine according to claim 1, characterized in that: The coiled tubing machine further comprises an external power supply (7), wherein the external power supply (7) is electrically connected to the electric control unit (1) and supplies power to the electric control unit (1).

4. A coiled tubing machine according to claim 3, characterized in that: The external power supply (7) comprises a generator (71), a power grid (72) and a fuel cell (73), and at least one of the generator (71), the power grid (72) and the fuel cell (73) is electrically connected to the electronic control unit (1).

5. The coiled tubing machine according to claim 1, characterized in that: The collector slip ring (63) comprises a stator (631) and a rotor (632); the rotor (632) is coaxially mounted on the rotating shaft of the reel body (61) and rotates with the reel body (61); the rotor (632) is electrically connected to the cable; the stator (631) is sleeved outside the rotor (632) and mounted on the reel support (62); the stator (631) is electrically connected to the electric control unit (1); and the stator (631) is used to supply power to the rotor (632).

6. A coiled tubing machine according to any one of claims 1, 3 or 4, characterized in that: The coiled tubing machine further comprises a trailer (8), and the energy storage unit (2), the electric control unit (1) and the tubing reel (3) are all arranged on the trailer (8).

7. The coiled tubing machine according to claim 6, characterized in that: The energy storage unit (2) is electrically connected to the trailer (8), and the energy storage unit (2) supplies power to the trailer (8).

8. A coiled tubing machine according to any one of claims 1, 3 or 4, characterized in that: The coiled tubing machine further comprises a hydraulic station (5) and a monitoring unit (9); The hydraulic station (5) is electrically connected to the electronic control unit (1); The monitoring unit (9) is electrically connected to the electronic control unit (1).

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