A hydrodynamic sand-carrying device

Abstract

The present invention provides a hydrodynamic sand-carrying device, which comprises an outer cylinder. A sand-receiving hopper is arranged on the outer cylinder. An inlet disc is arranged at one end of the outer cylinder, and an outlet disc is arranged at the other end. And an inclined sand-carrying mechanism is arranged inside the outer cylinder. The inclined sand-carrying mechanism comprises a plurality of internally cylinders connected obliquely. The higher end of the inclined sand-carrying mechanism is connected to the inlet disc, and the lower end is connected to the outlet disc. Wherein, the cuttings falling into the sand-receiving hopper enter the inclined sand-carrying mechanism, water is input into the inclined sand-carrying mechanism through the inlet disc, the water flows obliquely and mixes with the cuttings and flows out through the outlet disc. The present invention can carry out efficient and reliable cuttings picking-up and carrying operations, liberate labor force, save labor costs, and ensure the working efficiency of cuttings logging.

Description

Technical Field

[0001] The present invention relates to a hydrodynamic sand-carrying device, belonging to the field of oil and gas exploration or other related fields. Background Art

[0002] In the exploration of oil and gas resources, the main work of cuttings logging is the observation and analysis of rock cuttings, which is also an important basis for formation evaluation and oil and gas resource evaluation. Downhole, after being impacted and broken by the drill bit, the cuttings carried back to the surface by the drilling fluid flow through the overhead chute of the drilling rig equipment into the buffer tank. The buffer tank is a device with a low inlet and a high outlet, and then flows out of the buffer tank to the vibrating screen. The vibrating screen relies on high-frequency vibration, and the screen separates solids and liquids. The drilling fluid filtered by the screen to remove the cuttings particles circulates back to the drilling fluid circulation system, while the cuttings as solid particles drop onto the waste sand pool through the vibrating screen mesh. The starting point of cuttings logging is from this point. In cuttings logging, first is the collection of cuttings samples, that is, receiving cuttings. The normal condition for cuttings logging is to place a sand-receiving basin under the vibrating screen first. The cuttings dripping from the vibrating screen drop into the sand-receiving basin, and the cuttings logging personnel scoop up the cuttings from the sand-receiving basin at a certain interval, and then enter the next work process.

[0003] However, the actual situation is that the cuttings dripping from the vibrating screen do not always drop into the sand-receiving basin by themselves. Sometimes they deviate, or even do not fall into the sand-receiving basin. At this time, it is necessary to frequently adjust the position of the sand-receiving basin to adapt to the change of the dripping position of the cuttings from the vibrating screen, otherwise the cuttings cannot be received. Summary of the Invention

[0004] In view of the above technical problems existing in the prior art, the present invention provides a hydrodynamic sand-carrying device, which can efficiently and reliably carry out the operation of receiving and carrying cuttings, liberates the labor force, saves labor costs, and ensures the working efficiency of cuttings logging.

[0005] The present invention provides a hydrodynamic sand-carrying device, comprising:

[0006] An outer cylinder, on which a sand-receiving hopper is arranged. One end of the outer cylinder is provided with an inlet plate, and the other end is provided with an outlet plate; and

[0007] An inclined sand-carrying mechanism arranged inside the outer cylinder, the inclined sand-carrying mechanism comprising a plurality of inclined inner cylinders connected. The higher end of the inclined sand-carrying mechanism is connected to the inlet plate, and the lower end is connected to the outlet plate;

[0008] Wherein, the cuttings falling into the sand-receiving hopper enter the inclined sand-carrying mechanism, water is input into the inclined sand-carrying mechanism through the inlet plate, and the water flows obliquely and mixes with the cuttings and then flows out through the outlet plate.

[0009] A further improvement of the present invention lies in that a connecting sleeve connected to the inclined sand-carrying mechanism is provided on the inlet disk, and a water injection valve is provided on the outer side of the connecting sleeve.

[0010] A further improvement of the present invention lies in that an air injection valve is provided on one side of the water injection valve.

[0011] A further improvement of the present invention lies in that the inner cylinder includes a diversion pipe connected to the connecting sleeve, a return water pipe connected to the outlet disk, and a sand receiving pipe connected to the sand receiving hopper; the diversion pipe, the return water pipe, and the sand receiving pipe are connected by a connecting mechanism.

[0012] A further improvement of the present invention lies in that the connecting mechanism includes an inclined diversion slope provided below the sand receiving pipe, the higher end of the diversion slope is connected to the diversion pipe through a diversion pipe sealing disk, and the lower end is connected to the return water pipe through a chip guiding disk.

[0013] A further improvement of the present invention lies in that a return water valve is provided on the outlet disk.

[0014] A further improvement of the present invention lies in that a support mechanism is provided on the outer cylinder, and the support mechanism includes a base device provided at the bottom of the outer cylinder and an upper support device provided at the upper part of the outer cylinder.

[0015] A further improvement of the present invention lies in that the base device includes a bottom support sleeve provided on the outer cylinder, a bottom support rod is provided on the bottom support sleeve, and the lower end of the bottom support rod is connected to the base through a support column.

[0016] A further improvement of the present invention lies in that the upper support device includes top support sleeves horizontally provided at both ends of the outer cylinder, extension rods are provided on the top support sleeves, and a precision casting pipe support is provided on the extension rods.

[0017] A further improvement of the present invention lies in that a sand guiding plate is connected to the sand receiving hopper through a hinge, and the opening and closing angle of the hinge is 90 ± 3 degrees.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] The water-powered sand-carrying device of the present invention can efficiently and reliably carry out the operation of picking up and carrying cuttings, liberates the labor force, saves the labor cost, and ensures the working efficiency of cuttings logging.

[0020] The hydrodynamic sand-carrying device described in the present invention ensures continuous collection of cuttings, improving the working efficiency of the automatic cuttings launderer; it does not require manual adjustment of the sand collection amount of the sand collector, effectively reducing the labor intensity of operators in daily operations; hydrodynamic sand-carrying does not require sequential driving, eliminating the impact of power failures and enhancing the exploration construction benefits; the structure of the hydrodynamic sand-carrying device has low requirements for installation conditions, strong adaptability to on-site conditions, and improves the equipment operation benefits; the operation connection of the water injection pipe, the water return pipe, and the sand-carrying device is scientific, without equipment operation failures; the hydrodynamic sand-carrying device is light in weight, convenient for replacement and relocation, reducing the daily operation workload; the operation cost of the hydrodynamic sand-carrying device is low, improving the application benefits of the automatic cuttings launderer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the drawings. In the drawings:

[0022] Figure 1 The structure schematic diagram of the hydrodynamic sand-carrying device according to an embodiment of the present invention is shown;

[0023] Figure 2 The structure schematic diagram of the inlet plate according to an embodiment of the present invention is shown;

[0024] Figure 3 The structure schematic diagram of the diversion pipe according to an embodiment of the present invention is shown;

[0025] Figure 4 The structure schematic diagram of the diversion slope according to an embodiment of the present invention is shown;

[0026] Figure 5 The structure schematic diagram of the chip guide plate according to an embodiment of the present invention is shown;

[0027] Figure 6 The structure schematic diagram of the outlet plate according to an embodiment of the present invention is shown;

[0028] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0029] The meanings of the reference numerals in the drawings are as follows: 1, outer cylinder; 2, inclined sand-carrying mechanism; 3, inlet plate; 4, outlet plate; 11, sand collection hopper; 12, bottom support sleeve; 13, bottom support rod; 14, support column; 15, base; 16, top support sleeve; 17, extension rod; 18, precision casting pipe support; 19, sand guide plate; 21, diversion pipe; 22, water return pipe; 23, sand collection pipe; 24, diversion slope; 25, diversion pipe partition plate; 26, chip guide plate; 31, connecting sleeve; 32, water injection valve; 33, gas injection valve; 41, water return valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the technical solutions and advantages of the present invention clearer and more understandable, the exemplary embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than an exhaustive list of all embodiments. And without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0031] Figure 1 Schematically shown is a hydrodynamic sand-carrying device according to an embodiment of the present invention, including an outer cylinder 1. The outer cylinder 1 is of a cylindrical structure, which is horizontally arranged, and a section of cut is provided in the middle of the upper end. A sand receiving hopper 11 is provided on the cut. One end of the outer cylinder 1 is provided with an inlet disc 3, and the other end is provided with an outlet disc. An inclined sand-carrying mechanism 2 is arranged inside the outer cylinder 1. The inclined sand-carrying mechanism 2 is inclined, and the higher end of the inclined sand-carrying mechanism 2 is connected to the inlet disc 3, and the lower end is connected to the outlet disc.

[0032] Wherein, the cuttings falling into the sand receiving hopper 11 enter the inclined sand-carrying mechanism 2, water is input into the inclined sand-carrying mechanism 2 through the inlet disc 3, and the water flows obliquely and mixes with the cuttings and flows out through the outlet disc.

[0033] During the operation of the hydrodynamic sand-carrying device according to this embodiment, the cuttings dripping from the vibrating screen enter the outer cylinder 1 through the sand receiving hopper 11 and fall into the inclined sand-carrying mechanism 2; at the same time, water is input at the inlet disc 3. Due to the inclined arrangement of the inclined sand-carrying mechanism 2, the water flows from the inlet disc 3 towards the outlet disc and carries the cuttings to flow.

[0034] In one embodiment, as Figure 2 shown, a connecting sleeve 31 connected to the inclined sand-carrying mechanism 2 is provided on the inlet disc 3. The connecting sleeve 31 is a tubular connecting sleeve 31, the inner side of which passes through the inlet disc 3 and is connected to the inclined sand-carrying mechanism 2. An injection water valve 32 is provided on the outer side of the connecting sleeve 31 for injecting sand-carrying water. Preferably, an injection gas valve 33 is provided on one side of the injection water valve 32 for injecting gas.

[0035] In the hydrodynamic sand-carrying device according to this embodiment, the inlet disc 3 is a steel disc, which is preferably of a circular or elliptical structure and is vertically arranged at the inlet end of the outer cylinder 1. The valve body of the injection water valve 32 has external threads and is screwed in and connected to an internal thread plug. The injection gas valve 33 is designed on the valve body of the injection water valve 32. There is an included angle of 45° between the injection gas valve 33 and the injection water valve 32 and is controlled by a switch. There is a pipe clamp at the front end of the injection water valve 32 for clamping the connected water pipe. In this embodiment, the injection water valve 32 and the injection gas valve 33 can be used in combination or separately to improve the sand-carrying effect of the injected water flow.

[0036] In one embodiment, the inclined sand carrying mechanism 2 includes a plurality of inner tubes, the inner tubes including a flow guide pipe 21, a water return pipe 22 and a sand receiving pipe 23, wherein the flow guide pipe 21 is connected to one side of the inlet plate 3 and is connected to the water injection valve 32, the water return pipe 22 is connected to one side of the outlet plate, and the sand receiving pipe 23 is connected to the sand receiving hopper 11. The flow guide pipe 21 and the water return pipe 22 are both arranged horizontally and inclined, and the sand receiving pipe 23 is arranged vertically. In this embodiment, the flow guide pipe 21, the water return pipe 22 and the sand receiving pipe 23 are connected by a connecting mechanism.

[0037] In a preferred embodiment, Figure 3 As shown, the connection mechanism includes an inclined guide slope 24 (such as Figure 4 As shown), the higher end of the diversion slope 24 passes through the diversion pipe isolation plate 25 (as shown Figure 5 As shown in the figure, the guide pipe 21 is connected to the lower end thereof, and the return pipe 22 is connected to the lower end thereof through the chip guide plate 26.

[0038] In the hydrodynamic sand carrying device according to the present embodiment, the guide pipe 21 is laid downwardly at an angle of 10° to the outer pipe in the inner cavity of the outer pipe. The front end of the guide pipe 21 is tangential at 15°. The guide pipe 21 is in a closed structure with the outer pipe through the guide pipe baffle plate 25 in the outer pipe cavity. The guide pipe baffle plate 25 and the outer pipe are seamlessly connected at an anti-oblique angle of 10°, that is, the injected water cannot flow back into the outer pipe cavity. The upper end of the guide pipe 21 extends out of the guide pipe baffle plate 25 by 10mm, and the extended space is sealed by an oblique baffle plate, and the lower end is flush. The guide slope 24 is an arc-shaped pipe slope, which is inclined at 10° to the guide pipe 21, and guides the injected water to the return pipe 22. The return pipe 22 receives the rock cuttings carried by the water flow of the diversion pipe 21. The return pipe 22 forms a sealing structure with a chip guide plate 26 and the inner cavity of the outer pipe. A chip guide cavity with a diameter of 50 mm is opened below the chip guide plate 26. The chip guide plate 26 and the diversion pipe 21 are inclined at 10 degrees, and the return pipe 22 passes through the chip guide cavity. The return pipe 22 is preferably a sloped tapered pipe with a wall thickness of 2 mm. The part extending out of the outlet plate as the return valve 41 is 80 mm long, and the front end is provided with a pipe clamp for clamping the access pipeline.

[0039] In one embodiment, Figure 6 As shown, the outlet plate is provided with a return valve 41. The outlet plate is used to seal the other end of the flow guide pipe 21 and is inclined at 10° to the flow guide pipe 21. A hole with a diameter of 45 mm is provided at the bottom of the outlet plate for passing the return pipe 22.

[0040] In one embodiment, Figure 1 As shown, a supporting mechanism is provided on the outer cylinder 1, and the supporting mechanism is used to support the outer cylinder 1. In this embodiment, the supporting mechanism includes a base device and an upper supporting device, both of which can be detached. The base device is arranged at the bottom of the outer cylinder 1 and can support the outer cylinder 1 at the lower end. The upper supporting device is arranged at the upper part of the outer cylinder 1 and is used to be hung on other devices.

[0041] In one embodiment, the base device includes a bottom support sleeve 12 disposed on the outer cylinder 1. The bottom support sleeve 12 is of a tubular structure and has internal threads provided therein. A bottom support rod 13 is provided on the bottom support sleeve 12. The upper end of the bottom support rod 13 is provided with external threads. Alternatively, the outside of the bottom support sleeve 12 is provided with external threads, and the bottom support rod 13 is of a cylindrical shape with internal threads provided therein. The bottom support rod 13 can be installed or disassembled by connecting the internal and external threads. The lower end of the bottom support rod 13 is connected to the base 15 through a support column 14. The base 15 is a horizontally arranged plate-like structure and remains stable when supporting the outer cylinder 1.

[0042] In one embodiment, the upper support device includes two top support sleeves 16 which are respectively disposed at both ends of the outer cylinder 1. In this embodiment, one top support sleeve 16 is disposed on the top of the inlet disc 3, and the other is disposed on the top of the outlet disc. The top support sleeves 16 are horizontally arranged and are of a tubular structure with internal threads provided therein. Alternatively, the rod is provided with external threads inside and outside. An extension rod 17 is provided on the top support sleeve 16, and a precision casting pipe support 18 is provided on the extension rod 17. Threads are provided on the extension rod 17 and are matched with the threads of the top support sleeve 16, facilitating disassembly and installation.

[0043] In one embodiment, a sand guide plate 19 is connected to the sand receiving hopper 11 through a hinge. The sand receiving hopper 11 is a square hopper. The hinge is located on the back of the sand receiving hopper 11, and its opening and closing angle is 90 ± 3 degrees, preferably 90 degrees. The sand guide plate 19 can not only guide the cuttings so that they can smoothly enter the sand receiving hopper 11, but also close the sand receiving hopper 11 in the non-working state.

[0044] In the hydrodynamic sand-carrying device according to this embodiment, the outer pipe provides a support and positioning structure for the inner cavity diversion pipe 21 and the return water pipe 22. The cuttings dripping from the vibrating screen enter the cuttings dripping area through the sand receiving hopper 11, and the water flowing in from the diversion pipe 21 carries the cuttings into the return water pipe 22. The height difference and inclination angle between the diversion pipe 21 and the return water pipe 22 provide sufficient drainage power for the water flow drive; the funnel design of the sand receiving hopper 11 can collect a sufficient amount of cuttings, and adjusting the sand guide plate 19 can change the sand receiving position; the accessory support provides two fixed installation methods, sitting and hanging, for the overall sand-carrying device, and can be fixed according to actual conditions.

[0045] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and / or modifications falling within the scope of the present invention. All changes and / or modifications made according to the embodiments of the present invention should be covered within the protection scope of the present invention.

Claims

1. A hydrodynamic sand-carrying device, characterized in that, Comprising: An outer cylinder (1) provided with a sand receiving hopper (11) thereon. One end of the outer cylinder (1) is provided with an inlet plate (3), and the other end is provided with an outlet plate. In the middle of the upper end of the outer cylinder (1) is provided with a section of incision, and the sand receiving hopper (11) is arranged on the incision; and An inclined sand-carrying mechanism (2) arranged inside the outer cylinder (1), the inclined sand-carrying mechanism (2) comprising an inner cylinder connected obliquely. The higher end of the inclined sand-carrying mechanism (2) is connected to the inlet plate (3), and the lower end is connected to the outlet plate; Wherein, the cuttings falling into the sand receiving hopper (11) enter the inclined sand-carrying mechanism (2), water is input into the inclined sand-carrying mechanism (2) through the inlet plate (3), and the water flows obliquely and mixes with the cuttings and flows out through the outlet plate; The inlet plate (3) is provided with a connecting sleeve (31) connected to the inclined sand-carrying mechanism (2), and a water injection valve (32) is arranged on the outer side of the connecting sleeve (31); One side of the water injection valve (32) is provided with a gas injection valve (33); The inner cylinder comprises a diversion pipe (21) connected to the connecting sleeve (31), a return water pipe (22) connected to the outlet plate, and a sand receiving pipe (23) connected to the sand receiving hopper (11); the diversion pipe (21), the return water pipe (22), and the sand receiving pipe (23) are connected through a connecting mechanism; The connecting mechanism comprises an inclined diversion slope (24) arranged below the sand receiving pipe (23). The higher end of the diversion slope (24) is connected to the diversion pipe (21) through a diversion pipe sealing plate (25), and the lower end is connected to the return water pipe (22) through a chip guiding plate (26).

2. The hydrodynamic sand-carrying device according to claim 1, characterized in that, The outlet plate is provided with a return water valve (41).

3. The hydrodynamic sand-carrying device according to claim 2, wherein, The outer cylinder (1) is provided with a supporting mechanism, and the supporting mechanism comprises a base device arranged at the bottom of the outer cylinder (1) and an upper supporting device arranged at the upper part of the outer cylinder (1).

4. The hydrodynamic sand-carrying device according to claim 3, characterized in that, The base device comprises a bottom support sleeve (12) arranged on the outer cylinder (1), a bottom support rod (13) is arranged on the bottom support sleeve (12), and the lower end of the bottom support rod (13) is connected to a base (15) through a support column (14).

5. The hydrodynamic sand-carrying device according to claim 4, wherein, The upper supporting device comprises top support sleeves (16) horizontally arranged at both ends of the outer cylinder (1), an extension rod (17) is arranged on the top support sleeve (16), and a precision casting pipe support (18) is arranged on the extension rod (17).

6. The hydrodynamic sand-carrying device according to claim 5, characterized in that, A sand guiding plate (19) is connected to the sand receiving hopper (11) through a hinge, and the opening and closing angle of the hinge is 90 ± 3 degrees.

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