A scale body sampling device suitable for high flow rate reinjection wells of oilfield produced water

Abstract

The application discloses a scale body sampling device suitable for high-flow-rate reinjection wells of oilfield production water, and relates to the technical field of sampling of reinjection wells of oilfields. The sampling device comprises a main body rod frame, a mounting vertical rod and a plurality of sampling execution mechanisms. The sampling execution mechanism comprises a sampling box body, an outer extension platform component, a sampling scraping component, a lower acting component and a bellows component. When the lower acting component moves on the support rod arm, the lower acting component can act on the sampling scraping component and make the sampling scraping component move in an arc shape reciprocatingly on the outer extension platform component. The lower acting component also acts on the bellows component and makes the driving blades in the bellows component rotate. The top of the mounting vertical rod is also provided with a scraping power assembly, and the scraping power assembly and the lower acting component are connected. The sampling device has the advantages of simple structure, upward scraping and rotating and pulling in combination, easy scale body separation from the well wall, reduced abrasion of the sampling scraping component, sufficient collection of scale body samples, convenient operation and high practicality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oilfield reinjection well sampling, in particular to a scale body sampling device suitable for high flow rate reinjection well of oilfield produced water. BACKGROUND

[0002] The oilfield produced water reinjection well is a technical means for re-injecting treated oilfield produced water into the formation to maintain or increase reservoir pressure and improve oil recovery. The oilfield produced water reinjection well technology plays a crucial role in modern oil and gas field development. It not only effectively utilizes water resources and reduces environmental pollution, but also significantly improves the production efficiency and economic benefits of oilfields.

[0003] During the long-term large-volume injection process of the oilfield produced water reinjection well, various minerals in the water are prone to form scale bodies on the inner wall of the well. These scale bodies not only reduce the reinjection efficiency of the well, but also may cause damage to the production equipment. Therefore, regular sampling and analysis of these scale bodies to evaluate their composition and impact are of great significance for maintaining oilfield production and environmental protection. The conventional sampling device is to make the scale body fall off from the well wall by scraping the scale body on the well wall, and the fallen scale body falls into the collection box to achieve sampling. Some scale bodies have high connection strength with the well wall, and the scraper is easy to be damaged when acting on the scale body due to its thickness and strength. SUMMARY

[0004] The purpose of the present application is to provide a scale body sampling device suitable for high flow rate reinjection well of oilfield produced water to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The scale sampling device suitable for high flow rate reinjection well of oilfield production water comprises a main rod frame, a mounting vertical rod and a plurality of sampling execution mechanisms, the main rod frame is mounted on a mobile device through an upper support frame, and an upper cross frame body capable of sliding thereon is arranged on the main rod frame, the mounting vertical rod is provided with a lifting component for driving the vertical movement of the upper cross frame body, the top of the mounting vertical rod is fixedly connected with the upper cross frame body, and the plurality of sampling execution mechanisms are arranged on the mounting vertical rod in a vertically equidistant distribution manner; the sampling execution mechanism comprises a sampling box body, an outer extension table component, a sampling scraping component, a lower acting component and a bellows component, one side of the sampling box body facing the mounting vertical rod is mounted on the mounting vertical rod through a support rod arm, 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 table component is arranged at the lower edge of the material receiving port, and the sampling scraping component is arranged on the outer extension table component; the sampling scraping component can slide along the arc surface of the sampling box body on the outer extension table component, and the top of the sampling scraping component can act on the scale on the side of the reinjection well and make the scale fall; the bellows component is arranged on the support rod arm, the air inlet end of the bellows component is connected with the inside of the sampling box body in communication, the lower acting component is slidably arranged on the support rod arm, the middle position of the lower acting component is connected with the bellows component, and one end of the lower acting component extends to the lower side of the sampling scraping component and is connected therewith; when the lower acting component moves on the support rod arm, the lower acting component can act on the sampling scraping component and make the sampling scraping component reciprocate on the outer extension table component in an arc shape, and the lower acting component also acts on the bellows component and makes the driving blades in the inside of the bellows component rotate; the top of the mounting vertical rod is further provided with a scraping power assembly, the scraping power assembly is connected with the lower acting components in the plurality of sampling execution mechanisms, and the scraping power assembly is used for driving the lower acting components to reciprocate along the corresponding support rod arms.

[0007] On the basis of the above technical scheme, the application further provides the following optional technical schemes:

[0008] In an optional scheme, the outer extension table component comprises a guide plate, an arc-shaped supporting plate and two side guards, the guide plate is arranged along the lower edge of the material receiving port, the edge of the guide plate away from the edge of the material receiving port is fixedly connected with the arc-shaped supporting plate, the arc-shaped supporting plate is provided with an arc-shaped guide hole concentric with the arc-shaped supporting plate, and the two side guards are respectively arranged at the two ends of the arc-shaped supporting plate and are fixedly connected with the side of the sampling box body.

[0009] In an optional scheme, the sampling scraping component comprises a scraping plate, a base plate and a plurality of scraping top pins, the center line of the scraping plate coincides with the center line of the arc surface of the sampling box body, and the inner surface of the scraping plate is in a curved surface shape, the base plate covers the arc-shaped supporting plate, the bottom of the base plate is provided with a movable seat penetrating through the arc-shaped guide hole, the movable seat is in sliding fit with the arc-shaped guide hole, the movable seat is further connected with the lower acting component, and the plurality of scraping top pins are equidistantly distributed on the upper edge of the scraping plate.

[0010] In an alternative: the active seat bottom is provided with a connecting rod part, the driving blades of the wind box component have two groups, and both groups of driving blades are provided with wind driving shafts extending to the bottom of the wind box component, each wind driving shaft is provided with a wind driving gear, the lower acting component includes a sliding seat and a lower extension rod, the sliding seat is slidingly installed on the support rod arm, the sliding seat is connected with 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 with 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 part, and the middle part of the lower extension rod is provided with two wind driving racks on both sides and the two wind driving racks are respectively engaged with the two wind driving gears.

[0011] In an alternative: the scraping power assembly includes a rotating disc part, an upper rod frame and a vertical connecting rod, the rotating disc part is rotationally arranged on the upper cross frame body and connected with the output end of the sampling motor, the end surface of the rotating disc part is provided with an eccentric column, the vertical connecting rod is fixedly connected with the lower acting components in the plurality of sampling execution mechanisms, and the upper rod frame is fixedly connected with the top of the vertical connecting rod, the eccentric column passes through the upper rod frame and can move in the upper rod frame in a rolling manner.

[0012] In an alternative: the side of the vertical connecting rod is further provided with a plurality of knocking units, and the plurality of knocking units are located on the upper side of the plurality of sampling execution mechanisms; the knocking unit includes a side knocking rod, an arc-shaped rod and a plurality of mounting columns, one end of the side knocking rod is fixedly connected with the vertical connecting rod and the other end of the side knocking rod is fixedly connected with the arc-shaped rod, the plurality of mounting columns are uniformly distributed on the arc-shaped rod, and each mounting column is provided with a knocking roller body rotationally matched therewith.

[0013] In an alternative: the lifting component includes a sampling lead screw part and a lifting motor part, the sampling lead screw part is rotationally arranged on the main body rod frame and the lifting motor part is arranged on the top of the main body rod frame, the top of the sampling lead screw part is connected with the output end of the lifting motor part, the sampling lead screw part spirally penetrates through the upper cross frame body, the top of the main body rod frame is slidingly arranged on the upper supporting frame, and the upper supporting frame is provided with an adjusting cylinder part having one end connected with the top of the main body rod frame.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] 1. In the present application, the sampling scraping component can act on the scale on the well wall in a upward jacking manner and a reciprocating rotating manner along the inner wall of the river reinjection well, so that the scale is quickly removed and the sampling scraping component is prevented from being damaged, and the scale is guided to the sampling box body by the outer extension platform component;

[0016] 2. In the present application, the wind box component can guide the separated scale into the sampling box body through the air flow discharged from the sampling box body, so that the scale with light weight is effectively prevented from scattering everywhere.

[0017] 3、 The structure is simple, the scale body is acted on in a combination mode of upward scraping and rotating and drawing, the scale body can be separated from the well wall conveniently, the abrasion of the sampling scraping part is reduced, the scale body sample can be collected fully, the operation is convenient, and the practicality is high. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the scale body sampling device in an embodiment of the present application.

[0019] Figure 2 It is a sampling execution mechanism structure schematic view in which the sampling scraping part is removed in an embodiment of the present application.

[0020] Figure 3 It is a sampling execution mechanism structure schematic view in which the sampling scraping part is removed in an embodiment of the present application.

[0021] Figure 4 It is a sampling scraping part and lower acting part structure schematic view in an embodiment of the present application.

[0022] Figure 5 It is a scraping power assembly structure schematic view in an embodiment of the present application.

[0023] Figure 6 It is Figure 5 It is an enlarged schematic view of A in the figure.

[0024] The figure mark annotation: main body rod frame 100, upper bearing frame 200, adjusting cylinder piece 300, upper cross frame body 400, installation vertical rod 500, sampling lead screw part 600, lifting motor part 610, sampling execution mechanism 700, sampling box body 710, material receiving port 711, outer extension platform part 720, guide plate 721, arc-shaped bearing plate 722, side guard plate 723, arc-shaped guide hole 724, sampling scraping part 730, scraper piece 731, base plate 732, scraping top pin part 733, 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 gear rack 744, support rod arm 750, wind box part 760, wind driving rod shaft 761, wind driving gear 762, scraping power assembly 800, rotating disc piece 810, upper rod frame 820, eccentric column 830, vertical connecting rod 840, knocking unit 850, side knocking rod 851, arc-shaped rod 852, installation column 853, knocking roller body 854. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples; in the drawings or description, similar or identical parts use the same reference signs, and in practical application, the shape, thickness or height of each component can be enlarged or reduced. The listed examples of the present application are only used to illustrate the present application, and are not used to limit the scope of the present application. Any obvious modification or change made to the present application does not deviate from the spirit and scope of the present application.

[0026] The left-right and up-down positions of each component shown in the drawings are only one arrangement, and the specific position is set according to the specific needs.

[0027] In one embodiment, as Figures 1-4As shown, a scale sampling device suitable for high flow rate reinjection wells of oilfield production water, comprising a main rod frame 100, a mounting vertical rod 500 and a plurality of sampling execution mechanisms 700, the main rod frame 100 is mounted on a mobile device through an upper support frame 200 and the main rod frame 100 is provided with an upper cross frame body 400 capable of sliding thereon, the mounting vertical rod 500 is provided with a lifting component for driving the vertical movement of the upper cross frame body 400, the top of the mounting vertical rod 500 is fixedly connected with the upper cross frame body 400 and the plurality of sampling execution mechanisms 700 are arranged on the mounting vertical rod 500 in a vertically equidistant distribution manner; the sampling execution mechanism 700 comprises a sampling box body 710, an outer extension platform component 720, a sampling scraping component 730, a lower acting component 740 and a bellows component 760, one side of the sampling box body 710 towards the mounting vertical rod 500 is mounted on the mounting vertical rod 500 through a support rod arm 750, the side away from the mounting vertical rod 500 of the sampling box body 710 is an arc surface and is provided with 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 along the arc surface of the sampling box body 710 on the outer extension platform component 720, 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 in communication with the inside of the sampling box body 710, the lower acting component 740 is slidingly arranged on the support rod arm 750 and the middle position of the lower acting component 740 is connected with the bellows component 760, one end of the lower acting component 740 extends to the lower side of the sampling scraping component 730 and is connected therewith; when the lower acting component 740 moves on the support rod arm 750, the lower acting component 740 can act on the sampling scraping component 730 and make it reciprocate along the arc of the outer extension platform component 720, the lower acting component 740 also acts on the bellows component 760 and makes the driving blades inside the bellows component 760 rotate; the top of the mounting vertical rod 500 is further provided with a scraping power assembly 800 and the scraping power assembly 800 is connected with the lower acting components 740 in the plurality of sampling execution mechanisms 700, the scraping power assembly 800 is used to drive the lower acting component 740 to reciprocate along the corresponding support rod arm 750;

[0028] In the embodiment of the present application, the mobile device is at the edge of the reinjection well, the mobile device is placed in the reinjection well through the whole sampling device and makes the sampling execution mechanism 700 close to the inner wall of the reinjection well; the lifting component and the scraping power assembly 800 start to work, the lifting component drives the upper cross frame body 400, the installed vertical rod 500 and the plurality of sampling execution mechanisms 700 to move upwards, since the top edge of the sampling scraping component 730 is attached to the inner wall of the reinjection well, the top of the upward moving sampling scraping component 730 can scrape the scale on the inner wall of the reinjection well, the scale falls along the sampling scraping component 730 through the material receiving port 711 into the sampling box body 710; the scraping power assembly 800 works and drives the lower acting component 740 in the plurality of sampling execution mechanisms 700 to reciprocally move along the support rod arm 750, the lower acting component 740 acts on the sampling scraping component 730 from the bottom and makes the sampling scraping component 730 reciprocally move in an arc line 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; it is avoided that the scale is too firmly connected with the inner wall of the reinjection well to cause damage to the top of the sampling scraping component 730; secondly, the reciprocally moving lower acting component 740 also acts on the wind blade in the bellows component 760 and makes it rotate, the wind blade in the bellows component 760 rotates and generates airflow, negative pressure is generated in the sampling box body 710 and the airflow in the reinjection well enters the sampling box body 710 through the material receiving port 711, in this way, the scale with light weight can enter the sampling box body 710 along with the airflow, it is avoided that the scale with light weight is scattered everywhere; the plurality of sampling execution mechanisms 700 can act on the inner wall of the reinjection well and sample the scale simultaneously; wherein, the mobile device is a conventional prior art, only the whole sampling device needs to be placed in the reinjection well and the radial position needs to be adjusted, again, no further description is needed.

[0029] In one embodiment, as shown in Figures 1-4 The outer extension platform component 720 includes a guide plate 721, an arc-shaped supporting plate 722 and two side protecting 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 edge of the material receiving port 711 is fixedly connected with the arc-shaped supporting plate 722, the arc-shaped supporting plate 722 is provided with an arc-shaped guide hole 724 concentric with the arc-shaped supporting plate 722, the two side protecting plates 723 are respectively arranged at the two ends of the arc-shaped supporting plate 722 and are fixedly connected with the side of the sampling box body 710; in the embodiment of the present application, the bottom of the sampling scraping component 730 is slidingly matched with the arc-shaped guide hole 724 and the scale scraped on the sampling scraping component 730 enters the sampling box body 710 along the sampling scraping component 730 and the guide plate 721, and the side protecting plate 723 can block part of the scale from falling from the end of the arc-shaped supporting plate 722.

[0030] In one embodiment, as shown in Figures 1-4As shown, the sampling scraping component 730 includes a scraper piece 731, a base plate 732, and a plurality of scraping thimble parts 733, the center line of the scraper piece 731 coincides with the center line of the arc surface of the sampling box body 710, and the inner surface of the scraper piece 731 is curved, the base plate 732 covers the arc-shaped supporting plate 722, and the bottom of the base plate 732 is provided with a movable seat 734 penetrating the arc-shaped guide hole 724, the movable seat 734 is in sliding fit with the arc-shaped guide hole 724, and the movable seat 734 is further connected with the lower acting component 740, and the plurality of scraping thimble parts 733 are distributed at equal intervals on the upper edge of the scraper piece 731; in the embodiment of the application, when the whole sampling execution mechanism 700 moves upward, the plurality of scraping thimble parts 733 pierce into the scale in the inner wall of the injection well, 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 piece 731 and the scraping thimble parts 733 reciprocate with the movable seat 734, and the scraping thimble parts 733 can effectively act on the scale to make the scale separate from the inner wall of the injection well.

[0031] In one embodiment, as shown in Figures 1-4 The bottom of the movable seat 734 is provided with a connecting rod part 735, the driving blades of the bellows component 760 have two groups, and the two groups of driving blades are both provided with a wind driving rod shaft 761 extending to the bottom of the bellows component 760, each wind driving rod shaft 761 is provided with a wind driving gear 762, the lower acting component 740 includes a sliding seat 741 and a lower extension rod 742, the sliding seat 741 is in sliding fit on the supporting rod arm 750, the sliding seat 741 is connected with the scraping power assembly 800, and 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 with 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 with the connecting rod part 735, and the middle part of the lower extension rod 742 has a wind driving rack 744 on both sides, and the two wind driving racks 744 are respectively in meshing fit with the two wind driving gears 762; in the embodiment of the application, the scraping power assembly 800 drives the sliding seat 741 to reciprocate along the supporting rod arm 750, and the lower extension rod 742 reciprocates with the sliding seat 741, the lower extension rod 742 acts on the wind driving fan blades in the bellows component 760 through the meshing fit of the wind driving rack 744 and the wind driving gear 762, and makes the wind driving fan blades rotate, so that the airflow in the sampling box body 710 is guided out and forms a negative pressure cavity, and the scale in the form of fragments is guided into 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 makes the movable seat 734 reciprocate along the arc-shaped guide hole 724, so that the scale on the inner wall of the injection well is acted on by the scraping thimble parts 733 and falls off.

[0032] In one embodiment, as shown in Figures 1-6As shown, the scraping power assembly 800 comprises a rotating disc part 810, an upper rod frame 820 and a vertical connecting rod 840, the rotating disc part 810 is rotatably arranged on the upper cross frame body 400 and connected with the output end of the sampling motor, an eccentric column 830 is arranged on the end face of the rotating disc part 810, the vertical connecting rod 840 is fixedly connected with the lower acting parts 740 of the plurality of sampling execution mechanisms 700, the upper rod frame 820 is fixedly connected with the top of the vertical connecting rod 840, the eccentric column 830 passes through the upper rod frame 820 and can move in the rolling mode inside the upper rod frame 820; in the embodiment of the present application, the rotating disc part 810 rotates under the driving of the driving motor, the rotating rotating disc part 810 drives the upper rod frame 820 and the vertical connecting rod 840 to move transversely and reciprocatingly through the eccentric column 830, and the vertical connecting rod 840 drives the plurality of lower acting parts 740 to move reciprocatingly along the support rod arms 750.

[0033] In one embodiment, as shown in Figures 1-6 As shown, the side of the vertical connecting rod 840 is further provided with a plurality of knocking units 850, and the plurality of knocking units 850 are located on the upper side of the plurality of sampling execution mechanisms 700; the knocking unit 850 comprises a side knocking rod 851, an arc-shaped rod 852 and a plurality of mounting columns 853, one end of the side knocking rod 851 is fixedly connected with the vertical connecting rod 840, and the other end of the side knocking rod 851 is fixedly connected with the arc-shaped rod 852, the plurality of mounting columns 853 are uniformly distributed on the arc-shaped rod 852, and a knocking roller body 854 in rotational cooperation with the mounting column 853 is mounted on each mounting column 853; in the embodiment of the present application, the whole knocking unit 850 moves reciprocatingly with the vertical connecting rod 840, so that the knocking roller body 854 reciprocatingly approaches the inner wall of the reinjection well and intermittently collides with the inner wall, the knocking roller body 854 acts on the scale on the inner wall of the reinjection well to make the scale vibrate, reduces the connection strength of the scale and the inner wall of the reinjection well, and facilitates the scraping of the subsequent sampling scraping part 730.

[0034] In one embodiment, as shown in Figure 1As shown, the lifting component includes a sampling screw rod part 600 rotatably arranged on the main rod support 100 and a lifting motor part 610 arranged on the top of the main rod support 100, the top of the sampling screw rod part 600 is connected with the output end of the lifting motor part 610, the sampling screw rod part 600 is screwingly penetrated through the upper cross support body 400, the top of the main rod support 100 is slidingly arranged on the upper supporting frame 200, and the upper supporting frame 200 is provided with an adjusting cylinder part 300 having one end connected with the top of the main rod support 100; in the embodiment, the lifting motor part 610 drives the sampling screw rod part 600 to rotate, and the rotating sampling screw rod part 600 moves the upper cross support body 400 along the main rod support 100 through the screwing cooperation with the upper cross support body 400, and the adjusting cylinder part 300 drives the main rod support 100 to move laterally through the extension and retraction to make the side of the sampling execution mechanism 700 abut against the inner wall of the reinjection well.

[0035] In the above embodiment, the scale sampling device suitable for the high flow rate reinjection well of the oilfield production water is provided, wherein the lifting component and the scraping power assembly 800 are started to work, the lifting component drives the upper cross support body 400, the installed vertical rod 500 and the plurality of sampling execution mechanisms 700 to move upward, the sampling scraping part 730 can scrape the scale on the inner wall of the reinjection well due to the top edge of the sampling scraping part 730 abutting against the inner wall of the reinjection well, the scale on the inner wall of the reinjection well can be scraped by the top of the upward moving sampling scraping part 730, and the scale can slide along the sampling scraping part 730 to the inside of the sampling box body 710 through the material receiving port 711; the scraping power assembly 800 works and drives the lower acting part 740 in the plurality of sampling execution mechanisms 700 to reciprocally move along the support rod arm 750, the lower acting part 740 acts on the sampling scraping part 730 from the bottom and makes the sampling scraping part 730 reciprocally move in the arc line of the outer extension platform part 720, so that the top of the sampling scraping part 730 acts on the scale and facilitates the scale to separate from the inner wall of the reinjection well, thereby avoiding the scale from being too firmly connected with the inner wall of the reinjection well to cause the damage of the top of the sampling scraping part 730; secondly, the reciprocally moving lower acting part 740 also acts on the wind blade in the wind box part 760 and makes it rotate, the wind blade in the wind box part 760 rotates and generates airflow, the negative pressure is generated in the inside of the sampling box body 710, and the airflow in the inside of the reinjection well enters the inside of the sampling box body 710 through the material receiving port 711, in this way, the scale with light weight can enter the inside of the sampling box body 710 along with the airflow, and the scale with light weight is reduced to be scattered everywhere; the plurality of sampling execution mechanisms 700 can synchronously act on the inner wall of the reinjection well and sample the scale.

[0036] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A scale sampling device suitable for high-velocity reinjection wells of oilfield production water, comprising a main frame, a mounting vertical rod, and multiple sampling actuators, wherein the main frame is mounted on a mobile device via an upper support frame and has an upper horizontal frame that can slide on it; the mounting vertical rod is equipped with a lifting component for driving the upper horizontal frame to move vertically, characterized in that... The top of the mounting vertical rod is fixedly connected to the upper horizontal frame, and multiple sampling actuators are arranged on the mounting vertical rod in a vertically equidistant manner; The sampling actuator includes a sampling box body, an outer extension stage component, a sampling scraping component, a lower action component, and a bellows component; The sampling box body is mounted on the mounting rod via a support arm on the side facing the mounting rod, and the side of the sampling box body away from the mounting rod is curved and has a receiving port. The outer extension platform component is located at the lower edge of the receiving port and the sampling and scraping component is located on the outer extension platform component. The sampling and scraping component can slide along the arc surface of the sampling box on the outer extension platform component. 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 mounted on the support arm and the air inlet of the bellows component is connected to the interior of the sampling box. The lower action component is slidably mounted on the support arm and is connected to the bellows component at the middle position. One end of the lower action component extends to the lower side of the sampling scraping component and is connected thereto. When the lower action component moves on the support arm, the lower action component can act on the sampling and scraping component and make it reciprocate in an arc on the outer extension platform component. The lower action component also acts on the bellows component and makes the wind-driving blades inside it rotate. The top of the mounting rod is also provided with a scraping power assembly, which is connected to the lower action component in multiple sampling actuators. The scraping power assembly is used to drive the lower action component to reciprocate along the corresponding support rod arm.

2. The scale sampling device for high-velocity oilfield production water reinjection wells according to claim 1, characterized in that, The outer extension platform component includes a drop plate, an arc-shaped support plate, and two side guard plates; The guide plate is set along the lower edge of the receiving port and the edge of the guide plate away from the 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 guards are respectively set at both ends of the arc-shaped support plate and the side guards are fixedly connected to the side of the sampling box body.

3. The scale sampling device for high-velocity oilfield production water reinjection wells according to claim 2, characterized in that, The sampling and scraping component includes a scraper, a base plate, and multiple scraping pins. The center line of the scraper coincides with the center line of the arc surface of the sampling box, and the inner surface of the scraper is curved. The base plate covers the arc-shaped support plate and the bottom of the base plate is provided with a movable seat that passes through the arc-shaped guide hole. The movable seat slides with the arc-shaped guide hole and is also connected to the lower action component. Multiple scraping pins are evenly distributed on the upper edge of the scraper.

4. The scale sampling device for high-velocity oilfield production water reinjection wells according to claim 3, characterized in that, The bottom of the movable seat is provided with a connecting rod part, and the drive blades of the wind box component have two sets, and both sets of drive blades are equipped with wind-driving rod shafts extending to the bottom of the wind box component. 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 and is connected to the scraping power assembly. The lower extension rod is located at the bottom of the sampling box. 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 to it. The end of the push-pull linkage away from the lower extension rod is hinged to the linkage section. Both sides of the middle section of the lower extension rod have wind-driving racks, and the two wind-driving racks are respectively engaged with two wind-driving gears.

5. The scale sampling device for high-velocity oilfield production water reinjection wells according to any one of claims 1-4, characterized in that, The scraping power assembly includes a turntable, an upper rod frame, and a vertical connecting rod; The turntable is rotatably mounted on the upper horizontal frame and connected to the output end of the sampling motor. An eccentric column is provided on the end face of the turntable. The vertical connecting rod is fixedly connected to the lower action component in the 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 for high-velocity oilfield production water reinjection wells according to claim 5, characterized in that, The vertical connecting rod is also provided with multiple striking units on its side, and the multiple striking units are located on the upper side of multiple sampling actuators respectively. The striking unit includes a side striking rod, an arc-shaped rod, and multiple mounting posts. One end of the side striking rod is fixedly connected to a vertical connecting rod, and the other end of the side striking rod is fixedly connected to the arc-shaped rod. The multiple mounting posts are evenly distributed on the arc-shaped rod, and each mounting post is equipped with a striking roller that rotates with it.

7. The scale sampling device for high-velocity oilfield production water reinjection wells according to claim 1, characterized in that, The lifting component includes a sampling lead screw and a lifting motor. The sampling screw is rotatably mounted on the main frame, and the lifting motor is located on the top of the main frame. The top of the sampling screw is connected to the output end of the lifting motor. The sampling screw spirally passes through the upper cross frame. The top of the main frame is slidably mounted on the upper support frame, and the upper support frame is equipped with an adjusting cylinder whose end is connected to the top of the main frame.

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