An automatic cleaning and transferring device for a cuttings box

Abstract

The present application relates to a kind of automatic cleaning and transfer equipment of cuttings box, it includes: stirring suction device, it is set in the upper position of cuttings box to be cleaned, suction cavity and cleaning jet cavity are formed on stirring suction device, one end of suction cavity and cleaning jet cavity can be adjusted to extend into the inside of cuttings box;High-pressure cleaning power system, its output end is connected with cleaning jet cavity, to provide high-pressure cleaning medium;Cuttings transfer system, its input end is connected with suction cavity, to provide positive and negative pressure, the output end of cuttings transfer system is connected with the waste disposal system outside;Automatic control system, it is electrically connected with high-pressure cleaning power system and cuttings transfer system, to control each electrical component on it.Wherein, stirring suction device can be cleaned, stirred, suction under the drive of high-pressure cleaning power system and cuttings transfer system to the cuttings box to be cleaned.The present application can reduce manual intervention, reduce personnel work intensity, to be able to greatly improve the degree of automation.

Description

Technical Field

[0001] This invention belongs to the field of waste water-based drilling fluid treatment, specifically relating to an automatic cleaning and transfer device for rock cuttings boxes. Background Technology

[0002] Oil and gas well drilling requires a large amount of drilling fluid, whose main functions include cleaning the bottom of the well, carrying drill cuttings, cooling and lubricating the drill bit, and maintaining formation pressure balance. After drilling is completed, the drill cuttings and waste drilling fluid carried out by the water-based drilling fluid become the biggest source of pollution. Currently, a large portion of the water-based drilling waste generated by offshore drilling platforms is loaded into cuttings containers and transported to other waste treatment platforms (ships) or disposed of on land.

[0003] However, in existing technologies, most rock cuttings boxes experience sedimentation due to uncertain sea transport times and other factors. The internal waste is difficult to clean and cannot be smoothly transported to the downstream water-based waste treatment process through conventional fluid transfer equipment. In cases of severe sedimentation, the upper clear liquid needs to be extracted and the internal sediment needs to be manually excavated for cleaning, resulting in significant waste of manpower, long cleaning time, and low efficiency. Summary of the Invention

[0004] In order to solve all or part of the above problems, the present invention aims to provide an automatic cleaning and transfer device for cuttings boxes, which can not only improve the safety of operations, but also reduce manual intervention and reduce the workload of personnel, thereby significantly improving the automation level of water-based drilling waste fluid treatment process.

[0005] This invention provides an automatic cleaning and transfer device for rock cuttings boxes, comprising: a suction device positioned above the rock cuttings box to be cleaned, the suction device having a suction chamber and a cleaning jet chamber, one end of which can be adjusted to extend into the interior of the rock cuttings box; a high-pressure cleaning power system, the output end of which is connected to the cleaning jet chamber to provide a high-pressure cleaning medium; a rock cuttings transfer system, the input end of which is connected to the suction chamber to provide positive and negative pressure, the output end of which is connected to an external waste treatment system; and an automatic control system electrically connected to the high-pressure cleaning power system and the rock cuttings transfer system to control their respective electrical components. Driven by the high-pressure cleaning power system and the rock cuttings transfer system, the suction device is capable of cleaning, stirring, and suctioning the rock cuttings box to be cleaned.

[0006] In some embodiments, the agitation device includes: a suction pipe body having an internal suction chamber, one end of which is configured as a quick-connect suction pipe for connection to a cuttings transfer system; the other end of which is configured as a suction inlet for adjustable insertion into the cuttings box; and a cleaning pipe body having an internal cleaning jet chamber, one end of which is provided with a jet vortex agitating cleaning head for adjustable insertion into the cuttings box; the other end of which is connected to a high-pressure cleaning power system. The cleaning pipe body is circumferentially arranged along the outer peripheral wall of the suction pipe body via an integrated mounting support frame.

[0007] In some embodiments, the jet vortex stirring cleaning head includes a high-pressure fluid pipe, a conical nozzle, and a static vortex stirring nozzle that are coaxially connected in sequence, wherein the small-diameter end of the conical nozzle is connected to the static vortex stirring nozzle, and a spiral channel is formed on the inner peripheral wall of the cavity of the static vortex stirring nozzle.

[0008] In some embodiments, the jet vortex stirring cleaning head further includes a connector, which is disposed along the outer peripheral wall of the high-pressure fluid pipe. At the same time, both ends of the connector are fixedly connected to the outer peripheral wall of the high-pressure fluid pipe and the outer wall of the static vortex stirring nozzle, respectively.

[0009] In some embodiments, the agitation device further includes an air supply pipe and an air supply control valve. The air supply pipe is mounted on an integrated mounting support frame and one end is connected to the suction chamber. The other end of the air supply pipe is equipped with an air supply control valve.

[0010] In some embodiments, the device further includes a stirring and suction device mounting bracket, which includes: a fixed base; a swing plate body axially connected to the fixed base; a telescopic plate body axially connected to the swing plate body, wherein a slide for mounting the shaft is formed on the telescopic plate body so that the telescopic plate body can also slide relative to the swing plate body; and a clamping portion fixed to the end of the telescopic plate body for detachably mounting the stirring and suction device.

[0011] In some embodiments, the clamping part is constructed as two semi-annular plate-shaped structures, one end of which is fixedly connected to the end of the telescopic plate, and the other end has an opening for fastening.

[0012] In some embodiments, the high-pressure cleaning power system includes: a water tank equipped with a level gauge; a high-pressure cleaning pump, one end of which is connected to the water tank and the other end of which is connected to a stirring and suction device via a pipeline; and a replenishment pump, one end of which is connected to the water tank and the other end of which is connected to an external liquid phase via a pipeline. A pressure regulating overflow valve, a check valve, and a pressure transmitter are also sequentially installed on the pipeline connecting the high-pressure cleaning pump and the stirring and suction device.

[0013] In some embodiments, the filtrate outlet of the external waste treatment system is also connected to the water tank via a pipeline.

[0014] In some embodiments, the cuttings transfer system includes: a gas input pipeline connected to the inlet of a waste treatment system, wherein a pneumatic valve, a venturi generator, and a feed gate valve are sequentially arranged on the gas input pipeline; and a vacuum pump body connected to the gas input pipeline, wherein the feed inlet of the vacuum pump body is connected to a stirring device through the feed gate valve.

[0015] As can be seen from the above technical solution, the automatic cleaning and transfer equipment for rock cuttings boxes provided by the present invention has the following advantages:

[0016] 1) The automatic cleaning and transfer equipment for rock cuttings boxes of the present invention can effectively improve the automation level of the operation, reduce the labor intensity of personnel, improve the on-site operation efficiency and safety, and realize the cleaning and transfer of solid and liquid phases inside the rock cuttings boxes;

[0017] 2) The automatic cleaning and transfer equipment for rock cuttings boxes of the present invention features an integrated design of agitation and suction devices, which significantly reduces the size of the equipment and improves the flexibility of its installation and layout. The paired agitation and suction devices also greatly improve the operating efficiency of the equipment. Attached Figure Description

[0018] Figure 1 This is a system connection diagram illustrating the process principle of the automatic rock cuttings box cleaning and transfer equipment according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the automatic cleaning and transfer equipment for rock cuttings boxes according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the stirring and suction device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the jet vortex stirring cleaning head according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the mounting bracket for the agitation device according to an embodiment of the present invention. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this invention, the following detailed description of an automatic cleaning and transfer device for rock cuttings boxes, in conjunction with the accompanying drawings, is provided.

[0024] Figure 1 A process principle system connection diagram of an automatic rock cuttings box cleaning and transfer device 100 according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the structure of an automatic rock cuttings box cleaning and transfer device 100 according to an embodiment of the present invention is shown. Figure 1 and Figure 2As shown, the automatic rock cuttings box cleaning and transfer equipment 100 includes: a suction device 1, which is positioned above the rock cuttings box 200 to be cleaned, and has a suction chamber and a cleaning jet chamber formed thereon, one end of which can be adjusted to extend into the interior of the rock cuttings box 200; a high-pressure cleaning power system 2, the output end of which is connected to the cleaning jet chamber to provide high-pressure cleaning medium; a rock cuttings transfer system 3, the input end of which is connected to the suction chamber to provide positive and negative pressure, and the output end of the rock cuttings transfer system 3 is connected to an external waste treatment system 5; and an automatic control system 4, which is electrically connected to the high-pressure cleaning power system 2 and the rock cuttings transfer system 3 to control the various electrical components thereon. Driven by the high-pressure cleaning power system 2 and the rock cuttings transfer system 3, the suction device 1 can clean, agitate, and suction the rock cuttings box 200 to be cleaned.

[0025] In practical use, before starting the automatic rock cuttings box cleaning and transfer equipment 100 according to an embodiment of the present invention, the agitator 1 is installed and fixed above the rock cuttings box 200 to be cleaned. The length of the agitator 1 extending into the rock cuttings box 200 is adjusted according to the sedimentation conditions inside the rock cuttings box 200 so that the end is in a suitable position. The high-pressure cleaning power system 2 is started, and the high-pressure cleaning fluid is injected into the rock cuttings box 200 in the form of a submerged jet through the agitator 1 to clean the sediment at the bottom of the rock cuttings box 200. Simultaneously, the high-pressure cleaning water jet, through the special structure of the agitator 1, can also form a large vortex, stirring and mixing the liquid phase and the washed-up solid phase inside the rock cuttings box 200. The rock cuttings transfer system 3 is then started. The solid-liquid two-phase mixed waste inside the rock cuttings box 200 is drawn into the rock cuttings transfer system 3 through the agitator 1 and then transported to the downstream water-based waste treatment system 5 for further processing.

[0026] With the above settings, the automatic cleaning and transfer equipment 100 for rock cuttings boxes in this embodiment of the invention can improve the automation level of water-based waste treatment operations, reduce the workload of personnel, and improve on-site operation efficiency and safety, thereby realizing the integrated operation of automatic cleaning, internal mixing and waste transfer of rock cuttings boxes 200.

[0027] Please refer to Figure 3In some embodiments, the agitation and suction device 1 may include: a suction pipe body 11, the internal structure of which is a suction chamber, one end of which is a quick-connect fitting 12 for connecting to the cuttings transfer system 3; the other end of which is a suction inlet 13 for adjustable insertion into the cuttings box 200; and a cleaning pipe body 14, the internal structure of which is a cleaning jet chamber, one end of which is provided with a jet vortex agitation cleaning head 141 for adjustable insertion into the cuttings box 200; the other end of which is connected to the high-pressure cleaning power system 2. The cleaning pipe body 14 is circumferentially arranged along the outer peripheral wall of the suction pipe body 11 via an integrated mounting support frame 15.

[0028] In this application, several cleaning tubes 14 can be arranged along the outer peripheral wall of the suction tube 11 so that the range of jet cleaning is wider and more uniform.

[0029] Please refer to Figure 4 In some embodiments, the jet vortex stirring cleaning head 141 may include a high-pressure fluid pipe 142, a conical nozzle 143, and a static vortex stirring nozzle 144, which are coaxially connected in sequence. The small-diameter end of the conical nozzle 143 is connected to the static vortex stirring nozzle 144, and a spiral channel 1441 is formed on the inner peripheral wall of the cavity of the static vortex stirring nozzle 144.

[0030] In this embodiment, the high-pressure fluid, after passing through the conical nozzle 143, generates a negative pressure at the connection between the static vortex stirring nozzle 144 and the conical nozzle 143, entraining nearby fluid and solid phase, which are then ejected from the end of the static vortex stirring nozzle 144. Experiments have shown that the fluid carried is more than six times the flow rate ejected from the nozzle, creating a strong vortex around it. The ejected fluid jet-washes the sediment at the bottom of the rock cuttings box 200, and the vortex circulation thoroughly mixes the surrounding sediment and liquid phase.

[0031] Please continue to refer to this. Figure 4 In some embodiments, the jet vortex stirring cleaning head 141 may also include a connector 145, which is disposed along the outer peripheral wall of the high-pressure fluid pipe 142. At the same time, the two ends of the connector 145 are fixedly connected to the outer peripheral wall of the high-pressure fluid pipe 142 and the outer wall of the static vortex stirring nozzle 144, respectively.

[0032] The above settings can improve the stability of the cleaning tube 14 during jetting.

[0033] Please return Figure 3 ,like Figure 3As shown, in some embodiments, the agitation and suction device 1 may also include an air supply pipe 16 and an air supply control valve 17. The air supply pipe 16 is disposed on the integrated mounting support frame 15 and one end is connected to the suction chamber. The other end of the air supply pipe 16 is provided with an air supply control valve 17.

[0034] In this application, the other end of the air supply pipe 16 is connected to an external air source via an air supply control valve 17.

[0035] Please refer to Figure 2 and Figure 5 In some embodiments, the device may further include a stirring and suction device mounting bracket 6, which includes: a fixed base 61; a swing plate 62 axially connected to the fixed base 61; a telescopic plate 63 axially connected to the swing plate 62, wherein a slide rail 631 for mounting the shaft is formed on the telescopic plate 63, so that the telescopic plate 63 can also slide relative to the swing plate 62; and a clamping part 64 fixed to the end of the telescopic plate 63, the clamping part 64 being used for detachably mounting the stirring and suction device 1.

[0036] In this application, after the agitator mounting bracket 6 is fixed to the body of the cuttings box 200, the agitator 1 is installed and fixed to the clamping part 64. By adjusting the positions of the swing plate 62 and the telescopic plate 63, the length and direction of the agitator 1 entering the box can be adjusted. Through this setting, the agitator mounting bracket 6 of this application is applied, making the agitator 1 easy to assemble and disassemble, highly adaptable to working conditions, and suitable for use with cuttings boxes 200 of different specifications.

[0037] Please continue to refer to this. Figure 5 In some embodiments, the clamping part 64 may be configured as two semi-annular plate-shaped structures, one end of which is fixedly connected to the end of the telescopic plate 63, and the other end of which has an opening for fastening.

[0038] This design makes it easier to assemble and disassemble the agitator 1, reducing the difficulty of use.

[0039] Please return Figure 1 In some embodiments, the high-pressure cleaning power system 2 may include: a water tank 21, in which a level gauge 22 is installed; a high-pressure cleaning pump 23, one end of which is connected to the water tank 21 and the other end of which is connected to the agitator 1 via a pipeline; and a replenishment pump 24, one end of which is connected to the water tank 21 and the other end of which is connected to an external liquid phase via a pipeline. The pipeline connecting the high-pressure cleaning pump 23 to the agitator 1 is also sequentially equipped with a pressure regulating overflow valve 25, a one-way valve 26, and a pressure transmitter 27.

[0040] In this application, specifically, the external cleaning fluid enters the buffer tank 21 via the cleaning fluid pipeline connector and check valve 26, and then through the replenishment pump 24. The level gauge 22 can feed back the liquid level in the tank 21 to the automatic control system 4 in real time. When the liquid level is lower than the calibrated value, the replenishment pump 24 automatically starts to replenish the tank 21. The high-pressure cleaning pump 23 pressurizes the cleaning fluid in the tank 21 and outputs it as high-pressure cleaning fluid. The pressure level of the cleaning fluid phase can be adjusted in real time by adjusting the opening of the pressure regulating overflow valve 25. The appropriate high-pressure cleaning fluid is sprayed out from the agitator 1 through the pipeline to clean the inside of the cuttings box 200.

[0041] Please return Figure 1 In some embodiments, the filtrate outlet of the external waste treatment system 5 can also be connected to the water tank 21 via a pipeline to save water resources and avoid waste of water resources.

[0042] Please continue to refer to this. Figure 1 In some embodiments, the cuttings transfer system 3 may include: a gas input pipeline 31 connected to the inlet of the waste treatment system 5, wherein a pneumatic valve 32, a venturi generator 33, and a feed gate valve 34 are sequentially installed on the gas input pipeline 31; and a vacuum pump body 35 connected to the gas input pipeline 31, wherein the feed inlet of the vacuum pump body 35 is connected to the agitator 1 through the feed gate valve 34.

[0043] In this application, the cuttings transfer system 3 includes a pneumatic valve 32 for controlling the air intake. After the valve is opened, compressed air is drawn into a vacuum state by the venturi generator 33 to form a vacuum pump body 35. The transfer of waste is realized by controlling different air path switching valves and the inlet and outlet control pneumatic gate valve 34 through the automatic control system 4.

[0044] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0045] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automatic cleaning and transfer device for rock cuttings boxes, characterized in that, include: A stirring and suction device is positioned above the rock cuttings box to be cleaned. The stirring and suction device has a suction chamber and a cleaning jet chamber, one end of which can be adjusted to extend into the interior of the rock cuttings box. A high-pressure cleaning power system, the output of which is connected to the cleaning jet cavity, is used to provide high-pressure cleaning medium; The cuttings transfer system has its input end connected to the suction chamber to provide positive and negative pressure, and its output end connected to an external waste treatment system. An automatic control system, which is electrically connected to the high-pressure cleaning power system and the cuttings transfer system, is used to control the electrical components thereon. The agitation and suction device, driven by the high-pressure cleaning power system and the rock cuttings transfer system, is capable of cleaning, agitating, and suctioning the rock cuttings box to be cleaned. It also includes a stirring and suction device mounting bracket, which includes: a fixed base; a swing plate body axially connected to the fixed base; a telescopic plate body axially connected to the swing plate body, wherein the telescopic plate body has a slide for mounting the shaft so that the telescopic plate body can also slide relative to the swing plate body; and a clamping part fixed to the end of the telescopic plate body, the clamping part being used for detachably mounting the stirring and suction device.

2. The automatic cleaning and transfer equipment for rock cuttings boxes according to claim 1, characterized in that, The agitation device includes: The suction tube body has an internal structure that forms the suction chamber. One end of the suction tube is a quick-connect fitting for connecting to the cuttings transfer system; the other end is a suction inlet for adjustable insertion into the cuttings box. The cleaning tube body has the internal structure of the cleaning jet chamber, and one end of it is equipped with a jet vortex stirring cleaning head, which is adjustable to extend into the interior of the rock debris box; the other end of it is used to connect to the high-pressure cleaning power system. The cleaning tube is provided along the circumferential outer wall of the suction tube via an integrated mounting support frame.

3. The automatic cleaning and transfer equipment for rock cuttings boxes according to claim 2, characterized in that, The jet vortex stirring cleaning head includes a high-pressure fluid pipe, a conical nozzle, and a static vortex stirring nozzle that are coaxially connected in sequence. The small-diameter end of the conical nozzle is connected to the static vortex stirring nozzle, and a spiral channel is formed on the inner peripheral wall of the cavity of the static vortex stirring nozzle.

4. The automatic cleaning and transfer equipment for rock cuttings boxes according to claim 3, characterized in that, The jet vortex stirring cleaning head also includes a connector, which is disposed along the outer peripheral wall of the high-pressure fluid pipe. At the same time, both ends of the connector are fixedly connected to the outer peripheral wall of the high-pressure fluid pipe and the outer wall of the static vortex stirring nozzle, respectively.

5. The automatic cleaning and transfer equipment for rock cuttings boxes according to any one of claims 2-4, characterized in that, The agitation and suction device also includes an air supply pipe and an air supply control valve. The air supply pipe is mounted on the integrated mounting support frame and one end is connected to the suction chamber. The other end of the air supply pipe is equipped with the air supply control valve.

6. The automatic cleaning and transfer equipment for rock cuttings boxes according to claim 1, characterized in that, The clamping part is constructed as two semi-annular plate-shaped structures. One end of the two semi-annular plate-shaped structures is fixedly connected to the end of the telescopic plate, and the other end has an opening for fastening.

7. The automatic cleaning and transfer equipment for rock cuttings boxes according to any one of claims 1-4, characterized in that, The high-pressure cleaning power system includes: A water tank, equipped with a level gauge; A high-pressure cleaning pump, one end of which is connected to the water tank, and the other end of which is connected to the agitator via a pipeline; and, A replenishment pump, one end of which is connected to the water tank, and the other end of which is connected to an external liquid phase via a pipeline; The pipeline connecting the high-pressure cleaning pump and the agitator is also equipped with a pressure regulating overflow valve, a check valve, and a pressure transmitter in sequence.

8. The automatic cleaning and transfer equipment for rock cuttings boxes according to claim 7, characterized in that, The filtrate outlet of the external waste treatment system is also connected to the water tank via a pipeline.

9. The automatic cleaning and transfer equipment for rock cuttings boxes according to any one of claims 1-4, characterized in that, The cuttings transport system includes: A gas input pipeline is connected to the inlet of the waste treatment system, and a pneumatic valve, a venturi generator, and a feed gate valve are sequentially installed on the gas input pipeline; and, A vacuum pump body is connected to the gas input pipeline, and the feed inlet of the vacuum pump body is connected to the agitation device through a feed gate valve.

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