Scale body sampling device suitable for oilfield production water high-flow-rate reinjection well

Abstract

The invention discloses a scale body sampling device suitable for an oilfield production water high-flow-speed reinjection well, and relates to the technical field of oilfield reinjection well sampling. The sampling device comprises a main body rod frame, a mounting vertical rod and a plurality of sampling execution mechanisms; the sampling executing mechanism comprises a sampling box body, an outer extending table component, a sampling scraping component, a lower acting component and an air bellow component, and when the lower acting component moves on the supporting rod arm, the lower acting component can act on the sampling scraping component and enables the sampling scraping component to do arc-shaped reciprocating motion on the outer extending table component; the lower acting part further acts on the air bellow part and enables air driving blades in the air bellow part to rotate. A scraping power assembly is further arranged at the top of the mounting vertical rod and connected with the lower acting part. The device is simple in structure, acts on a scale body in a manner of combining upward scraping and rotary scratching, can be convenient for the scale body to be separated from a well wall, reduces the abrasion of a sampling and scraping component, can fully collect a scale body sample, and is convenient to operate and relatively high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield reinjection well sampling, in particular to a scale body sampling device suitable for oilfield produced water high-flow rate reinjection wells. Background Art

[0002] Oilfield produced water reinjection well is a technical means to reinject treated oilfield produced water into the formation to maintain or increase reservoir pressure and improve oil recovery. Oilfield produced water reinjection well technology plays a vital role in modern oil and gas field development. It can not only effectively utilize water resources and reduce environmental pollution, but also significantly improve the production efficiency and economic benefits of oil fields.

[0003] During the long-term and large-volume injection process of oilfield production water reinjection wells, various minerals in the water easily form scale on the inner wall of the well due to the various minerals contained in the water. These scales will not only reduce the reinjection efficiency of the well, but may also cause damage to production equipment. Therefore, regular sampling and analysis of these scales to evaluate their composition and impact is of great significance for maintaining oilfield production and environmental protection. Conventional sampling devices act on the scale on the well wall through a scraper, causing the scale to fall off the well wall, and the fallen scale falls into the collection box to achieve sampling. Some scales have a high connection strength with the well wall. Due to their own thickness and strength, the scraper is easily damaged when acting on the scale. Summary of the invention

[0004] The object of the present invention is to provide a scale sampling device suitable for oil field produced water high flow rate reinjection wells to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The cam is an assembly made of a plurality of rollers, each of which is adapted to move the rollers upwardly and downwardly, and the rollers are adapted to move the rollers upwardly and downwardly, and the rollers are adapted to move the rollers upwardly and downwardly, and the rollers are adapted to move the rollers upwardly and downwardly, and the rollers are adapted to move the rollers upwardly and downwardly, and the rollers are adapted to move the rollers upwardly and downwardly, The outer extension platform component slides in an arc shape along the arc surface of the sampling box body, and the top of the sampling scraping component can act on the scale on the side of the reinjection well and make it fall; the bellows component is arranged on the support rod arm and the air inlet end of the bellows component is connected to the interior of the sampling box body, the lower acting component is slidably arranged on the support rod arm and the middle position of the lower acting component is connected to the bellows component, one end of the lower acting component extends to the lower side of the sampling scraping component and is connected thereto; when the lower acting component moves on the support rod arm, the lower acting component can act on the sampling scraping component and make it move back and forth in an arc shape on the outer extension platform component, and the lower acting component also acts on the bellows component and makes the wind-driving blades inside it rotate; a scraping power assembly is also provided on the top of the mounting vertical rod, and the scraping power assembly is connected to the lower acting components in multiple sampling actuators, and the scraping power assembly is used to drive the lower acting component to move back and forth along the corresponding support rod arm.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0008] In an optional scheme: the outer extension platform component includes a guide plate, an arc-shaped support plate and two side guard plates, the guide plate is arranged along the lower edge of the material receiving port and the edge of the guide plate away from the material receiving port is fixedly connected to the arc-shaped support plate, the arc-shaped support plate is provided with an arc-shaped guide hole concentric with the arc-shaped support plate, the two side guard plates are respectively arranged at both ends of the arc-shaped support plate and the side guard plates are fixedly connected to the side of the sampling box body.

[0009] In an optional scheme: the sampling and scraping component includes a scraper component, a base plate and a plurality of scraping ejector pins, the center line of the scraper component coincides with the center line of the arc surface of the sampling box body and the inner surface of the scraper component is a curved surface shape, the base plate is covered on the arc-shaped support plate and a movable seat penetrating the arc-shaped guide hole is provided at the bottom of the base plate, the movable seat is slidably matched with the arc-shaped guide hole and the movable seat is also connected to the lower acting component, and a plurality of scraping ejector pins are evenly spaced and distributed on the upper edge of the scraper component.

[0010] In an optional scheme: a connecting rod portion is provided at the bottom of the movable seat, the bellows component has two groups of driving blades and the two groups of driving blades are both equipped with a wind-driving rod shaft extending to the bottom of the bellows component, and a wind-driving gear is installed on each wind-driving rod shaft, and the lower acting component includes a sliding seat and a lower extension rod, and the sliding seat is slidably installed on the support rod arm, the sliding seat is connected to the scraping power assembly, and the lower extension rod is located at the bottom of the sampling box body, one end of the lower extension rod is connected to the sliding seat and the other end is provided with a push-pull connecting rod hinged thereto, the end of the push-pull connecting rod away from the lower extension rod is hinged to the connecting rod portion, and both sides of the middle part of the lower extension rod are provided with wind-driving racks, and the two wind-driving racks are respectively meshed with two wind-driving gears.

[0011] In an optional scheme: the scraping power assembly includes a turntable member, an upper rod frame and a vertical connecting rod, the turntable member is rotatably arranged on the upper cross frame and is connected to the output end of the sampling motor, an eccentric column is arranged on the end surface of the turntable member, the vertical connecting rod is fixedly connected to the lower acting parts of multiple sampling actuators and the upper rod frame is fixedly connected to the top of the vertical connecting rod, the eccentric column passes through the upper rod frame and the eccentric column can move in a rolling manner inside the upper rod frame.

[0012] In an optional scheme: a plurality of knocking units are also provided on the side of the vertical connecting rod and the plurality of knocking units are respectively located on the upper side of a plurality of sampling actuators; the knocking unit comprises a side knocking rod, an arc rod and a plurality of mounting columns, one end of the side knocking rod is fixedly connected to the vertical connecting rod and the other end of the side knocking rod is fixedly connected to the arc rod, a plurality of mounting columns are evenly distributed on the arc rod and each mounting column is equipped with a knocking roller body that rotates with the arc rod.

[0013] In an optional scheme: the lifting component includes a sampling screw part and a lifting motor part, the sampling screw part is rotatably set on the main rod frame and the lifting motor part is set at the top of the main rod frame, the top of the sampling screw part is connected to the output end of the lifting motor part, the sampling screw part spirally penetrates the upper cross frame, the top of the main rod frame is slidably set on the upper supporting bracket and the upper supporting bracket is provided with an adjusting cylinder part with one end connected to the top of the main rod frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The sampling and scraping component of the present invention can act on the scale on the well wall by pushing upward and reciprocating along the inner wall of the river re-injection well, so that the scale falls off quickly and avoids damage to the sampling and scraping component, and is guided to the sampling box body through the external extension platform component;

[0016] 2. The bellows component of the present invention can discharge the airflow of the sampling box body, so that the detached scale body can enter the sampling box body under the guidance of the airflow, effectively preventing the light scale body from scattering everywhere;

[0017] 3. The present invention has a simple structure and acts on the scale by combining upward scraping and rotary scratching, which can facilitate the scale to separate from the well wall, reduce the wear of the sampling and scraping parts, fully collect scale samples, and is easy to operate and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the scale sampling device in one embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of a sampling actuator in one embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of a sampling actuator with a sampling and scraping component removed in one embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the sampling and scraping component and the lower action component in one embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of a scraping power component in one embodiment of the present invention.

[0023] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Reference numerals: main rod frame 100, upper support bracket 200, adjustment cylinder 300, upper horizontal frame 400, installation vertical rod 500, sampling screw rod 600, lifting motor 610, sampling actuator 700, sampling box 710, material receiving port 711, outer extension platform component 720, guide plate 721, arc-shaped support plate 722, side guard plate 723, arc-shaped guide hole 724, sampling scraping component 730, scraper component 731, base plate 732, scraping ejector 73 3. Movable seat 734, connecting rod part 735, lower acting part 740, sliding seat 741, lower extension rod 742, push-pull connecting rod 743, wind-driving rack 744, support rod arm 750, bellows part 760, wind-driving rod shaft 761, wind-driving gear 762, scraping power assembly 800, turntable part 810, upper rod frame 820, eccentric column 830, vertical connecting rod 840, knocking unit 850, side knocking rod 851, arc rod 852, mounting column 853, knocking roller body 854. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0026] The left, right, up, and down positions of the various components given in the drawings are only one arrangement method, and the specific positions are set according to specific needs.

[0027] In one embodiment, Figure 1-Figure 4As shown, a scale sampling device suitable for high-flow rate reinjection wells of oilfield production water comprises a main rod frame 100, a mounting vertical rod 500 and a plurality of sampling actuators 700, wherein the main rod frame 100 is mounted on a mobile device through an upper support bracket 200 and an upper horizontal frame body 400 capable of sliding thereon is arranged on the main rod frame 100, the mounting vertical rod 500 is provided with a lifting component for driving the upper horizontal frame body 400 to move vertically, the top of the mounting vertical rod 500 is fixedly connected to the upper horizontal frame body 400 and a plurality of sampling actuators 700 are arranged on the mounting vertical rod 500 in a manner of vertically equidistant distribution. 00; the sampling actuator 700 includes a sampling box body 710, an outer extension platform component 720, a sampling scraping component 730, a lower action component 740 and a bellows component 760, the sampling box body 710 is installed on the mounting vertical rod 500 through a support rod arm 750 on the side facing the mounting vertical rod 500, the side of the sampling box body 710 away from the mounting vertical rod 500 is an arc surface and has a material receiving port 711, the outer extension platform component 720 is arranged at the lower edge of the material receiving port 711 and the sampling scraping component 730 is arranged on the outer extension platform component 720, the sampling scraping component 730 can slide on the outer extension platform component 720 along the arc surface of the sampling box body 710, and the top of the sampling scraping component 730 can act on the scale on the side of the reinjection well and make it fall; the bellows component 760 is arranged on the support rod arm 750 and the air inlet end of the bellows component 760 is connected to the interior of the sampling box body 710, the lower action component 740 is slidably arranged on the support rod arm 750 and the middle position of the lower action component 740 is connected to the bellows component 760, and one end of the lower action component 740 extends to the lower side of the sampling scraping component 730 and is connected thereto; when the lower action component 740 is When the support arm 750 moves, the lower action component 740 can act on the sampling and scraping component 730 and make it reciprocate in an arc shape on the outer extension platform component 720. The lower action component 740 also acts on the bellows component 760 and makes the wind-driving blades inside it rotate. A scraping power component 800 is also provided on the top of the vertical mounting rod 500, and the scraping power component 800 is connected to the lower action components 740 in the plurality of sampling actuators 700. The scraping power component 800 is used to drive the lower action component 740 to reciprocate along the corresponding support arm 750.

[0028] In the embodiment of the present invention, the mobile device is at the edge of the reinjection well. The mobile device is placed inside the reinjection well through the entire sampling device and the sampling actuator 700 is close to the inner wall of the reinjection well. The lifting component and the scraping power assembly 800 both start to work. The lifting component drives the upper cross frame 400, the installation vertical rod 500 and multiple sampling actuators 700 to move upward. Since the top edge of the sampling scraping component 730 is attached to the inner wall of the reinjection well, the top of the upwardly moving sampling scraping component 730 can scrape off the scale on the inner wall of the reinjection well, and the scale slides along the sampling scraping component 730 through the material receiving port 711 to the inside of the sampling box body 710; the scraping power assembly 800 works and drives the lower acting component 740 in the multiple sampling actuators 700 to move reciprocally along the support rod arm 750, and the lower acting component 740 acts on the sampling scraping component 730 from the bottom and makes the sampling scraping component 730 extend outside the platform component 72 0 reciprocating arc movement, so that the top of the sampling scraping component 730 acts on the scale and facilitates the scale to separate from the inner wall of the reinjection well; avoid the scale and the inner wall of the reinjection well being too firmly connected to cause damage to the top of the sampling scraping component 730; secondly, the reciprocating lower acting component 740 also acts on the wind-driving blades in the bellows component 760 and rotates it, and the wind-driving fan blades in the bellows component 760 rotate and generate airflow, and negative pressure is generated inside the sampling box body 710 and the airflow inside the reinjection well enters the sampling box body 710 through the material receiving port 711. In this way, the lighter scale can enter the sampling box body 710 with the airflow, avoiding the lighter scale from being scattered everywhere; multiple sampling actuators 700 can act on the inner wall of the reinjection well synchronously and perform scale sampling; wherein, the mobile device is a conventional prior art, and it only needs to be able to place the entire sampling device inside the reinjection well and adjust the radial position, and there is no need to elaborate again.

[0029] In one embodiment, Figure 1-Figure 4 As shown, the outer extension platform component 720 includes a guide plate 721, an arc-shaped support plate 722 and two side guard plates 723. The guide plate 721 is arranged along the lower edge of the material receiving port 711 and the edge of the guide plate 721 away from the material receiving port 711 is fixedly connected to the arc-shaped support plate 722. The arc-shaped support plate 722 is provided with an arc-shaped guide hole 724 concentric with the arc-shaped support plate 722. The two side guard plates 723 are respectively arranged at both ends of the arc-shaped support plate 722 and the side guard plates 723 are fixedly connected to the side of the sampling box body 710. In the embodiment of the present invention, the bottom of the sampling scraping component 730 is slidably matched with the arc-shaped guide hole 724 and the scale scraped off the sampling scraping component 730 enters the interior of the sampling box body 710 along the sampling scraping component 730 and the guide plate 721, and the side guard plates 723 can prevent part of the scale from falling from the end of the arc-shaped support plate 722.

[0030] In one embodiment, Figure 1-Figure 4As shown, the sampling scraping component 730 includes a scraper component 731, a base plate 732 and a plurality of scraping ejector pins 733. The center line of the scraper component 731 coincides with the center line of the arc surface of the sampling box body 710 and the inner surface of the scraper component 731 is a curved surface. The base plate 732 covers the arc-shaped support plate 722 and a movable seat 734 penetrating the arc-shaped guide hole 724 is provided at the bottom of the base plate 732. The movable seat 734 is slidably matched with the arc-shaped guide hole 724 and the movable seat 734 is also connected to the lower action component 740. , multiple scraping ejector parts 733 are evenly spaced on the upper edge of the scraper member 731; in the embodiment of the present invention, when the entire sampling actuator 700 moves upward, multiple scraping ejector parts 733 penetrate into the scale body on the inner wall of the reinjection well, and the lower acting component 740 acts on the movable seat 734 and makes the movable seat 734 reciprocate inside the arc-shaped guide hole 724, so that the scraper member 731 and the scraping ejector parts 733 reciprocate with the movable seat 734, and the scraping ejector parts 733 can effectively act on the scale body to make the scale body separate from the inner wall of the reinjection well.

[0031] In one embodiment, Figure 1-Figure 4 As shown, a connecting rod portion 735 is provided at the bottom of the movable seat 734, the bellows component 760 has two groups of driving blades and the two groups of driving blades are both equipped with a wind-driving rod shaft 761 extending to the bottom of the bellows component 760, and each wind-driving rod shaft 761 is equipped with a wind-driving gear 762, the lower action component 740 includes a sliding seat 741 and a lower extension rod 742, the sliding seat 741 is slidably installed on the support rod arm 750, the sliding seat 741 is connected to the scraping power assembly 800, the lower extension rod 742 is located at the bottom of the sampling box body 710, one end of the lower extension rod 742 is connected to the sliding seat 741 and the other end is provided with a push-pull connecting rod 743 hinged thereto, the end of the push-pull connecting rod 743 away from the lower extension rod 742 is hinged to the connecting rod portion 735, and both sides of the middle of the lower extension rod 742 have wind-driving racks 744 and the two wind-driving racks 744 are respectively meshed with the two wind-driving gears 762; in the embodiment of the present invention, the scraping power assembly 800 drives the slide 741 to move back and forth along the support rod arm 750 and the lower extension rod 742 moves back and forth with the slide 741, and the lower extension rod 742 acts on the fan blades in the bellows component 760 through the meshing of the wind-driving rack 744 and the wind-driving gear 762 and causes the fan blades to rotate, thereby discharging the airflow inside the sampling box body 710 and forming a negative pressure chamber, and guiding the fragmented scale into the interior of the sampling box body 710 through the airflow; the moving lower extension rod 742 pushes the connecting rod part 735 through the push-pull connecting rod 743 and causes the movable seat 734 to move back and forth along the arc-shaped guide hole 724, thereby acting on the scale on the inner wall of the reinjection well through the scraping ejector pin part 733 and causing it to fall off.

[0032] In one embodiment, Figure 1-Figure 6As shown, the scraping power assembly 800 includes a turntable 810, an upper rod frame 820 and a vertical connecting rod 840. The turntable 810 is rotatably arranged on the upper cross frame 400 and is connected to the output end of the sampling motor. An eccentric column 830 is arranged on the end surface of the turntable 810. The vertical connecting rod 840 is fixedly connected to the lower acting components 740 in multiple sampling actuators 700 and the upper rod frame 820 is fixedly connected to the top of the vertical connecting rod 840. The eccentric column 830 passes through the upper rod frame 820 and the eccentric column 830 can move in a rolling manner inside the upper rod frame 820. In the embodiment of the present invention, the turntable 810 rotates under the drive of the driving motor, and the rotating turntable 810 drives the upper rod frame 820 and the vertical connecting rod 840 to move back and forth horizontally through the eccentric column 830, and the vertical connecting rod 840 drives multiple lower acting components 740 to move back and forth along the support rod arm 750.

[0033] In one embodiment, Figure 1-Figure 6 As shown, the side of the vertical connecting rod 840 is also provided with a plurality of knocking units 850, and the plurality of knocking units 850 are respectively located on the upper sides of the plurality of sampling actuators 700; the knocking unit 850 includes a side knocking rod 851, an arc rod 852 and a plurality of mounting columns 853, one end of the side knocking rod 851 is fixedly connected to the vertical connecting rod 840 and the other end of the side knocking rod 851 is fixedly connected to the arc rod 852, and the plurality of mounting columns 853 are evenly distributed on the arc rod A knocking roller body 854 is installed on 852 and on each mounting column 853 to rotate with it; in the embodiment of the present invention, the entire knocking unit 850 reciprocates with the vertical connecting rod 840, so that the knocking roller body 854 will reciprocate and approach the inner wall of the reinjection well and intermittently collide with it. The knocking roller body 854 acts on the scale body on the inner wall of the reinjection well to cause it to vibrate, thereby reducing the connection strength between the scale body and the inner wall of the reinjection well, and facilitating the scraping of the subsequent sampling scraping component 730.

[0034] In one embodiment, Figure 1As shown, the lifting component includes a sampling screw rod portion 600 and a lifting motor portion 610, the sampling screw rod portion 600 is rotatably arranged on the main rod frame 100 and the lifting motor portion 610 is arranged at the top of the main rod frame 100, the top of the sampling screw rod portion 600 is connected to the output end of the lifting motor portion 610, the sampling screw rod portion 600 spirally penetrates the upper cross frame body 400, the top of the main rod frame 100 is slidably arranged on the upper support bracket 200, and the upper support bracket 200 is provided with an adjusting cylinder member 300 whose end is connected to the top of the main rod frame 100; in an embodiment of the present invention, the lifting motor portion 610 drives the sampling screw rod portion 600 to rotate, and the rotating sampling screw rod portion 600 makes the upper cross frame body 400 move vertically along the main rod frame 100 through the spiral cooperation with the upper cross frame body 400, and the adjusting cylinder member 300 pushes the main rod frame 100 to move horizontally through telescoping so that the side of the sampling actuator 700 is against the inner wall of the reinjection well.

[0035] In the above embodiment, a scale sampling device suitable for high-flow rate reinjection wells for oilfield production water is proposed, wherein the lifting component and the scraping power assembly 800 both start to work, and the lifting component drives the upper cross frame 400, the installation vertical rod 500 and multiple sampling actuators 700 to move upward. Since the top edge of the sampling scraping component 730 is attached to the inner wall of the reinjection well, the top of the upwardly moving sampling scraping component 730 can scrape off the scale on the inner wall of the reinjection well, and the scale slides along the sampling scraping component 730 through the material receiving port 711 to the inside of the sampling box body 710; the scraping power assembly 800 works and drives the lower acting component 740 in the multiple sampling actuators 700 to move reciprocally along the support rod arm 750, and the lower acting component 740 acts on the sampling scraping component 730 from the bottom and causes the sampling scraping component 730 to move back and forth. Component 730 moves in a reciprocating arc on the outer extension platform component 720, so that the top of the sampling scraping component 730 acts on the scale and facilitates the scale to separate from the inner wall of the reinjection well; avoid the scale and the inner wall of the reinjection well being too tightly connected to cause damage to the top of the sampling scraping component 730; secondly, the reciprocating lower acting component 740 also acts on the wind-driving blades in the bellows component 760 and rotates them, and the wind-driving blades in the bellows component 760 rotate and generate airflow, negative pressure is generated inside the sampling box body 710, and the airflow inside the reinjection well enters the sampling box body 710 through the material receiving port 711, so that the lighter scale can enter the sampling box body 710 with the airflow, reducing the scattering of lighter scale; multiple sampling actuators 700 can act on the inner wall of the reinjection well synchronously and perform scale sampling.

[0036] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A scale sampling device suitable for high-flow rate reinjection wells of produced water in oil fields, comprising a main rod frame, a mounting vertical rod and a plurality of sampling actuators, wherein the main rod frame is mounted on a mobile device through an upper support bracket and an upper horizontal frame body capable of sliding thereon is arranged on the main rod frame, and the mounting vertical rod is provided with a lifting component for driving the upper horizontal frame body to move vertically, characterized in that: The top of the mounting vertical rod is fixedly connected to the upper horizontal frame body and a plurality of sampling actuators are arranged on the mounting vertical rod in a manner of vertically equidistant distribution; The sampling execution mechanism comprises a sampling box body, an outer extension platform component, a sampling scraping component, a lower action component and a bellows component; The side of the sampling box body facing the mounting vertical rod is installed on the mounting vertical rod through a support rod arm, and the side of the sampling box body away from the mounting vertical rod is an arc surface and is provided with a material receiving port; The outer extension platform component is arranged at the lower edge of the material receiving port and the sampling and scraping component is arranged on the outer extension platform component. The sampling and scraping component can slide along the arc surface of the sampling box body on the outer extension platform component, and the top of the sampling and scraping component can act on the scale on the side of the reinjection well and make it fall off; The bellows component is arranged on the support arm and the air inlet end of the bellows component is connected to the interior of the sampling box body, the lower action component is slidably arranged on the support arm and the middle position of the lower action component is connected to the bellows component, and one end of the lower action component extends to the lower side of the sampling scraping component and is connected thereto; When the lower acting component moves on the support arm, the lower acting component can act on the sampling and scraping component to make it reciprocate in an arc shape on the outer extension platform component, and the lower acting component also acts on the bellows component to make the wind-driving blades inside it rotate; A scraping power assembly is also provided on the top of the vertical mounting rod and is connected to lower acting parts in a plurality of sampling actuators. The scraping power assembly is used to drive the lower acting parts to reciprocate along the corresponding support rod arms.

2. The scale sampling device suitable for oilfield produced water high-flow rate reinjection well according to claim 1 is characterized in that: The outer extension platform component includes a guide plate, an arc-shaped support plate and two side guard plates; The guide plate is arranged along the lower edge of the material receiving port and the edge of the guide plate away from the material receiving port is fixedly connected to the arc-shaped support plate. The arc-shaped support plate is provided with an arc-shaped guide hole concentric with the arc-shaped support plate. Two side guard plates are respectively arranged at both ends of the arc-shaped support plate and the side guard plates are fixedly connected to the side of the sampling box body.

3. The scale sampling device suitable for oilfield produced water high-flow rate reinjection well according to claim 2 is characterized in that: The sampling and scraping component includes a scraper, a base plate and a plurality of scraping ejector pins; The center line of the scraper piece coincides with the center line of the arc surface of the sampling box body, and the inner surface of the scraper piece is a curved surface shape; The base plate is covered on the arc-shaped supporting plate and a movable seat penetrating the arc-shaped guide hole is arranged at the bottom of the base plate. The movable seat is slidably matched with the arc-shaped guide hole and is also connected to the lower acting component. A plurality of scraping ejector pins are evenly spaced and distributed on the upper edge of the scraper member.

4. The scale sampling device suitable for oilfield produced water high-flow rate reinjection well according to claim 3 is characterized in that: The bottom of the movable seat is provided with a connecting rod part, the bellows component has two groups of driving blades, and both groups of driving blades are equipped with a wind-driving rod shaft extending to the bottom of the bellows component, and each wind-driving rod shaft is equipped with a wind-driving gear; The lower action component includes a slide and a lower extension rod, the slide is slidably mounted on the support rod arm, the slide is connected to the scraping power assembly, the lower extension rod is located at the bottom of the sampling box body, one end of the lower extension rod is connected to the slide and the other end is provided with a push-pull connecting rod hinged thereto; The end of the push-pull connecting rod away from the lower extension rod is hinged with the connecting rod part, and both sides of the middle part of the lower extension rod are provided with wind-driving racks, and the two wind-driving racks are respectively meshed with the two wind-driving gears.

5. The scale sampling device suitable for oilfield produced water high flow rate reinjection well according to any one of claims 1 to 4, characterized in that: The scraping power assembly includes a rotating disk, an upper rod frame and a vertical connecting rod; The turntable member is rotatably arranged on the upper cross frame and is connected to the output end of the sampling motor. An eccentric column is arranged on the end surface of the turntable member. The vertical connecting rod is fixedly connected to the lower acting parts of multiple sampling actuators and the upper rod frame is fixedly connected to the top of the vertical connecting rod. The eccentric column passes through the upper rod frame and can move in a rolling manner inside the upper rod frame.

6. The scale sampling device suitable for oilfield produced water high flow rate reinjection well according to claim 5 is characterized in that: The side of the vertical connecting rod is also provided with a plurality of knocking units, and the plurality of knocking units are respectively located on the upper sides of the plurality of sampling actuators; The knocking unit includes a side knocking rod, an arc rod and multiple mounting columns, one end of the side knocking rod is fixedly connected to the vertical connecting rod and the other end of the side knocking rod is fixedly connected to the arc rod, multiple mounting columns are evenly distributed on the arc rod and each mounting column is equipped with a knocking roller body that rotates with it.

7. The scale sampling device suitable for oilfield produced water high-flow rate reinjection well according to claim 1 is characterized in that: The lifting component includes a sampling screw rod part and a lifting motor part; The sampling screw rod part is rotatably arranged on the main rod frame and the lifting motor part is arranged on the top of the main rod frame. The top of the sampling screw rod part is connected to the output end of the lifting motor part. The sampling screw rod part spirally penetrates the upper cross frame body. The top of the main rod frame is slidably arranged on the upper supporting bracket and the upper supporting bracket is provided with an adjusting cylinder part with one end connected to the top of the main rod frame.

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