Downhole turbine drilling fluid drainage device for petroleum drilling engineering

Abstract

The utility model belongs to the technical field of drilling fluid, and particularly relates to a petroleum drilling engineering underground turbine drilling fluid drainage device which comprises a base, the upper surface of the base is fixedly connected with a turbine pump, the upper side wall of the base is provided with a filtering assembly, and the filtering assembly comprises an upper shell and a lower shell. An opening is formed in the upper surface of the upper shell, the inner walls of the opposite sides of the upper shell and the lower shell are rotationally connected with a rotating cylinder with an opening in the bottom, one end of the first connecting end is connected with the input end of the turbine pump through a hose, and a partition plate is tightly attached to the interior of the rotating cylinder; impurities are filtered through the filtering holes, and the two cavities are used alternately, so that when the rotating cylinder rotates to switch the cavities to convey drilling fluid, the impurities in the previous cavity can be discharged, and the effect of cleaning and filtering the impurities without shutdown is achieved; and the problems of abrasion, damage and blockage of the internal structure of the turbine pump caused by the fact that impurities enter the turbine pump are avoided.

Description

Technical Field

[0001] This utility model relates to the field of drilling fluid technology, specifically to a downhole turbine drilling fluid diversion device for oil drilling engineering. Background Technology

[0002] The turbine drilling fluid diversion device is a piece of equipment used in engineering fields such as oil drilling. It mainly consists of a turbine set, a drive mechanism, diversion components, and a housing and connecting parts. It relies on the high-speed flow of drilling fluid to impact the turbine blades and generate rotational power. The drive mechanism then converts the rotational motion into a specific form of power output, which in turn drives the diversion components to work, realizing the intake, discharge, and guidance of drilling fluid. It plays an important role in ensuring the effective circulation of drilling fluid, carrying cuttings, balancing formation pressure, and improving drilling efficiency and safety.

[0003] Because drilling fluid contains solids and has a certain amount of sand during circulation, if it is not filtered when the turbine drilling fluid diversion device extracts the drilling fluid, these impurities will wear down key components such as turbine blades and bearings, block the flow channels and nozzles of the device, affect the normal flow of drilling fluid and the working efficiency of the device, and also change the fluidity and rheological properties of the drilling fluid, reducing the turbine power transmission efficiency. Therefore, a downhole turbine drilling fluid diversion device for oil drilling engineering is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems, this utility model proposes a downhole turbine drilling fluid diversion device for oil drilling engineering.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The downhole turbine drilling fluid diversion device for oil drilling engineering of this utility model includes a base, a turbine pump fixedly connected to the upper surface of the base, a filter assembly installed on the upper side wall of the base, the filter assembly includes an upper shell and a lower shell, the upper surface of the upper shell has an opening, a rotating cylinder with a bottom opening is rotatably connected to the inner wall of the opposite side of the upper shell and the lower shell, the surface of the rotating cylinder has filter holes, a connecting end one is fixedly connected to the outer side wall of the rotating cylinder corresponding to the filter holes, one end of the connecting end one is connected to the input end of the turbine pump through a hose, a partition plate is tightly fitted inside the rotating cylinder, the outer wall of the partition plate is fixedly connected to the inner wall of the lower shell, a connecting end two is fixedly connected to the upper surface of the upper shell, a guide plate is fixedly connected inside the upper shell, the surface of the guide plate has two sets of flow channels, and the upper surface of the rotating cylinder has a liquid inlet hole and a sewage outlet hole.

[0006] Preferably, the bottom end of the flow channel is tightly fitted to the upper surface of the rotating cylinder, and two openings are provided.

[0007] Preferably, the lower surface of the lower housing has two drain ends, and a solenoid valve is fixedly installed on the surface of the drain ends.

[0008] Preferably, the filter assembly further includes a mounting base, one end of which is mounted on the outer wall of the base, a driver is fixedly connected to the lower surface of the mounting base, a transmission rod is fixedly connected to the driving end of the driver, and the top end of the transmission rod passes through the lower housing and the partition plate and is fixedly connected to the inner top wall of the rotating cylinder.

[0009] Preferably, a U-shaped connecting frame is fixedly connected to the outer wall of the base, and the upper and lower ends of the connecting frame are fixedly connected to the outer walls of the upper shell and the lower shell, respectively. The outer wall of the mounting base is fixedly connected to the outer wall of the base.

[0010] Preferably, a pressure regulating component is installed on the surface of the second connecting end and the base. The pressure regulating component includes a container, and the opening of the container is fixedly disposed on the surface of the second connecting end.

[0011] Preferably, a fixing seat is fixedly connected to the outer wall of the container, and one end of the fixing seat is fixedly connected to the upper side wall of the base.

[0012] Preferably, an electric push rod is fixedly connected to the outer wall of the container, the driving end of the electric push rod penetrates the surface of the container, and a piston plate is slidably arranged inside the container.

[0013] The advantages of this utility model are:

[0014] 1. This utility model filters impurities through filter holes and uses two chambers alternately, so that when the rotating drum rotates to switch chambers to transport drilling fluid, impurities inside the previous chamber can be discharged, achieving the effect of cleaning and filtering impurities without stopping the machine, and avoiding impurities from entering the turbine pump and causing wear, damage and blockage of the internal structure of the turbine pump.

[0015] 2. This utility model uses an electric push rod to retract synchronously, allowing drilling fluid to enter the interior of the container, thus avoiding the problem of blocked flow channels during the switching of the rotating drum, which could lead to excessive water pressure inside the upper shell and cause damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the upper shell, lower shell, and rotating cylinder of this utility model;

[0020] Figure 4 This is a schematic diagram of the flow channel structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the container of this utility model.

[0022] In the diagram: 1. Base; 2. Turbine pump; 3. Filter assembly; 301. Upper housing; 302. Lower housing; 303. Rotating cylinder; 304. Filter hole; 305. Connection end one; 306. Divider plate; 307. Connection end two; 308. Guide plate; 309. Flow channel; 310. Liquid inlet; 311. Drain end; 312. Solenoid valve; 313. Mounting base; 314. Driver; 315. Transmission rod; 316. Drain hole; 4. Connecting frame; 5. Pressure regulating assembly; 51. Container; 52. Fixing base; 53. Electric push rod; 54. Piston plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1-4As shown, the downhole turbine drilling fluid diversion device for oil drilling engineering includes a base 1. A turbine pump 2 is fixedly connected to the upper surface of the base 1. A filter assembly 3 is installed on the upper side wall of the base 1. The filter assembly 3 includes an upper housing 301 and a lower housing 302, which are perpendicular to each other. An opening is provided on the upper surface of the upper housing 301. A rotating cylinder 303 with a bottom opening is rotatably connected to the inner wall of the upper housing 301 and the lower housing 302 on opposite sides. The upper housing 301 and the lower housing 302 are connected to the rotating cylinder 303. A mechanical seal structure, such as a sealing ring, is fixedly installed at the intersection for sealing. A filter hole 304 is provided on the surface of the rotating cylinder 303. A connecting end 305 is fixedly connected to the outer wall of the rotating cylinder 303 corresponding to the filter hole 304. One end of the connecting end 305 is connected to the input end of the turbine pump 2 via a flexible hose. A partition plate 306 is tightly fitted inside the rotating cylinder 303. The outer wall of the partition plate 306 is fixedly connected to the inner wall of the lower housing 302. A connecting end 307 is fixedly connected to the upper surface of the upper housing 301. The upper housing 301 is internally fixedly connected to a guide plate 308. The surface of the guide plate 308 has two sets of flow channels 309. The upper surface of the rotating cylinder 303 has a liquid inlet 310 and a drain hole 316. The bottom end of the flow channel 309 is tightly attached to the upper surface of the rotating cylinder 303, and there are two openings. The four corners of the lower surface of the base 1 are fixedly equipped with casters for easy movement of the device. The turbine pump 2 consists of a turbine, a pump, dynamic (static) seals, and a support system. The turbine part generally includes a turbine housing, a turbine blade disk, etc., which is the component that converts fluid energy into mechanical energy. The pump part mainly consists of an inducer wheel, a centrifugal wheel, etc., which is responsible for pressurizing and transporting the liquid. Dynamic seals commonly use labyrinth seals, floating ring seals, etc., to prevent drilling fluid leakage. The support system includes bearings and a support housing, which provides support for the rotor of the turbine pump 2 and ensures its stable rotation. The specific structure of the turbine pump 2 is technical and will not be described in detail here. The rotating cylinder 303 can be made of transparent material, which makes it easy for users to observe the accumulation of impurities and clean them in a timely manner.

[0026] Specifically, the input end of turbine pump 2 is connected to connection end 305 via a hose, and connection end 307 is connected to the drilling fluid input pipeline. The output end of turbine pump 2 is connected to the drilling fluid output pipeline, thus connecting turbine pump 2, filter assembly 3, and delivery pipeline for guiding and delivering drilling fluid downhole. A partition plate 306 divides the area between the lower housing 302 and the rotating cylinder 303 into two chambers. When the drilling fluid passes through filter assembly 3, connection end 305 remains perpendicular to partition plate 306, and the inlet hole 310 aligns with the flow channel 309. The drilling fluid passes through connection end 305, and then through connection end 307, the opening, and the flow channel. The fluid enters one of the chambers through channel 309 and inlet hole 310. After being filtered through filter hole 304, it is discharged through connection end 305. Solid impurities in the drilling fluid are intercepted in this chamber, preventing them from entering the turbine pump 2 and causing wear or damage to the internal structure of the turbine pump 2. When there are many fixed impurities, the rotating cylinder 303 is rotated 180°, and the flow hole connects to another flow channel 309, so that the drilling fluid flows through the other chamber, realizing the switching of the two chambers. Impurities are retained in the previous chamber through partition plate 306, thereby reducing the obstruction of drilling fluid flow caused by impurity accumulation in the chamber.

[0027] The lower surface of the lower housing 302 has two drain ends 311. A solenoid valve 312 is fixedly installed on the surface of the drain end 311, and a drain pipe is fixedly installed at the bottom of the drain end 311.

[0028] Specifically, the solenoid valve 312 is used to control the opening and closing of the drain end 311. After switching chambers, the solenoid valve 312 of the drain end 311 below the previous chamber is opened, so that the drilling fluid enters the previous chamber through the drain hole 316 and flows, thereby carrying impurities out of the drain end 311. This can realize the cyclic switching of the two chambers and the effect of cleaning and filtering impurities without stopping the machine.

[0029] The filter assembly 3 also includes a mounting base 313. One end of the mounting base 313 is mounted on the outer wall of the base 1. A driver 314 is fixedly connected to the lower surface of the mounting base 313. A transmission rod 315 is fixedly connected to the driving end of the driver 314. The top end of the transmission rod 315 passes through the lower housing 302 and the partition plate 306 and is fixedly connected to the inner top wall of the rotating cylinder 303. A mechanical seal structure is fixedly provided at the intersection of the lower housing 302 and the transmission rod 315.

[0030] Specifically, the driver 314 is used to drive the transmission rod 315 to rotate, and the transmission rod 315 is used to drive the rotating cylinder 303 to rotate. The driver 314 adopts a high-precision servo motor, which can accurately realize the rotation adjustment of the rotating cylinder 303, so that the liquid inlet 310 and the sewage outlet 316 can be accurately connected to the flow channel 309, realizing automatic adjustment without manual operation.

[0031] A U-shaped connecting frame 4 is fixedly connected to the outer wall of the base 1. The upper and lower ends of the connecting frame 4 are fixedly connected to the outer walls of the upper housing 301 and the lower housing 302, respectively. The outer wall of the mounting base 313 is fixedly connected to the outer wall of the base 1.

[0032] Specifically, the connecting bracket 4 is used to connect the upper housing 301 and the lower housing 302, and the mounting base 313 is used to support and fix the driver 314.

[0033] Example 2

[0034] For comparison with Example 1, please refer to Figure 5 As shown, this utility model provides another embodiment. A pressure regulating component 5 is installed on the surface of the second connecting end 307. The pressure regulating component 5 includes a container 51. The opening of the container 51 is fixedly disposed on the surface of the second connecting end 307. A fixing seat 52 is fixedly connected to the outer wall of the container 51. One end of the fixing seat 52 is fixedly connected to the upper side wall of the base 1. An electric push rod 53 is fixedly connected to the outer wall of the container 51. The driving end of the electric push rod 53 penetrates the surface of the container 51. A piston plate 54 is slidably disposed inside the container 51. The piston plate 54 is used to isolate the drilling fluid inside the container 51.

[0035] Specifically, the electric push rod 53 extends to push the piston plate 54 to be held at the mouth of the container 51. When the rotating cylinder 303 switches rotation, the electric push rod 53 retracts synchronously, so that the drilling fluid can enter the interior of the container 51. This avoids the problem of the rotating cylinder 303 blocking the flow channel 309 during switching, which would cause excessive water pressure inside the upper shell 301 and damage. After the rotating cylinder 303 switches, the electric push rod 53 slowly extends to allow the piston plate 54 to return to its original position and squeeze out the drilling fluid.

[0036] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers should be selected and electrically connected to the driver 314, electric actuator 53, solenoid valve 312, and turbine pump 2 according to the actual situation to meet control requirements. Specific connections and control sequences should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control. The controller is electrically connected to a timer, which controls the driver 314, electric actuator 53, and solenoid valve 312 to operate at regular intervals, achieving the effect of periodically cleaning impurities.

[0037] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0038] Working principle: When the drilling fluid passes through the filter assembly 3, the first connection end 305 is perpendicular to the partition plate 306, and the inlet hole 310 is connected to the flow channel 309. The drilling fluid enters the interior of one of the chambers through the first connection end 305, the second connection end 307, the opening, the flow channel 309, and the inlet hole 310. After being filtered by the filter hole 304, it is discharged from the first connection end 305. Solid impurities contained in the drilling fluid are intercepted in this chamber, preventing impurities from entering the turbine pump 2 and causing wear or damage to the internal structure of the turbine pump 2. When there are many fixed impurities, the driver 314 drives the rotating cylinder 303 to rotate 180° through the transmission rod 315, so that the flow hole is connected to another flow channel 309, thereby allowing the drilling fluid to flow through the other chamber and realizing the switching of the two chambers. Impurities are left in the previous chamber through the partition plate 306, thereby reducing the obstruction of drilling fluid flow caused by the accumulation of impurities in the chamber.

[0039] After switching chambers, the solenoid valve 312 of the drain end 311 below the previous chamber is opened, allowing the drilling fluid to flow into the previous chamber through the drain hole 316, thereby carrying impurities out through the drain end 311. This enables the cyclic switching of the two chambers and the effect of cleaning and filtering impurities without stopping the machine.

[0040] The electric push rod 53 extends to push the piston plate 54 to be held at the mouth of the container 51. When the rotating cylinder 303 switches rotation, the electric push rod 53 retracts synchronously, so that the drilling fluid can enter the interior of the container 51. This avoids the problem that the flow channel 309 and the inlet hole 310 are misaligned when the rotating cylinder 303 switches, which would cause the drilling fluid to be temporarily unable to flow normally, resulting in excessive water pressure inside the upper shell 301 and causing damage. After the rotating cylinder 303 switches, the electric push rod 53 slowly extends to allow the piston plate 54 to return to its original position and squeeze out the drilling fluid.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A downhole turbine drilling fluid diversion device for oil drilling engineering, comprising a base (1), wherein a turbine pump (2) is fixedly connected to the upper surface of the base (1), characterized in that: A filter assembly (3) is installed on the upper side wall of the base (1). The filter assembly (3) includes an upper shell (301) and a lower shell (302). An opening is provided on the upper surface of the upper shell (301). A rotating cylinder (303) with a bottom opening is rotatably connected to the inner wall of the upper shell (301) and the lower shell (302) on opposite sides. A filter hole (304) is provided on the surface of the rotating cylinder (303). A connecting end (305) is fixedly connected to the outer side wall of the rotating cylinder (303) at the filter hole (304). One end of the connecting end (305) is open to... The hose is connected to the input end of the turbine pump (2). The interior of the rotating cylinder (303) is tightly fitted with a partition plate (306). The outer wall of the partition plate (306) is fixedly connected to the inner wall of the lower housing (302). The upper surface of the upper housing (301) is fixedly connected with a second connection end (307). The interior of the upper housing (301) is fixedly connected with a guide plate (308). The surface of the guide plate (308) is provided with two sets of flow channels (309). The upper surface of the rotating cylinder (303) is provided with an inlet hole (310) and a drain hole (316).

2. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 1, characterized in that: The bottom end of the flow channel (309) is closely attached to the upper surface of the rotating cylinder (303), and there are two openings.

3. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 1, characterized in that: The lower surface of the lower housing (302) has two drain ends (311), and a solenoid valve (312) is fixedly installed on the surface of the drain ends (311).

4. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 1, characterized in that: The filter assembly (3) also includes a mounting base (313), one end of which is mounted on the outer wall of the base (1). A driver (314) is fixedly connected to the lower surface of the mounting base (313). A transmission rod (315) is fixedly connected to the driving end of the driver (314). The top end of the transmission rod (315) passes through the lower housing (302) and the partition plate (306) and is fixedly connected to the inner top wall of the rotating cylinder (303).

5. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 4, characterized in that: The outer wall of the base (1) is fixedly connected to a U-shaped connecting frame (4), the upper and lower ends of the connecting frame (4) are fixedly connected to the outer walls of the upper shell (301) and the lower shell (302) respectively, and the outer wall of the mounting base (313) is fixedly connected to the outer wall of the base (1).

6. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 1, characterized in that: Pressure regulating components (5) are installed on the surfaces of the second connecting end (307) and the base (1). The pressure regulating components (5) include a container (51), and the opening of the container (51) is fixedly disposed on the surface of the second connecting end (307).

7. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 6, characterized in that: The outer wall of the container (51) is fixedly connected to a fixing seat (52), and one end of the fixing seat (52) is fixedly connected to the upper side wall of the base (1).

8. The downhole turbine drilling fluid diversion device for oil drilling engineering according to claim 7, characterized in that: An electric push rod (53) is fixedly connected to the outer wall of the container (51). The driving end of the electric push rod (53) penetrates the surface of the container (51). A piston plate (54) is slidably arranged inside the container (51).

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