A device for determining the occurrence of strata in an exploration well and its usage method

Abstract

This invention discloses a device and method for determining the stratigraphic attitude in an exploration well. A circular track is circumferentially arranged on the inner wall of the housing. The orientation sensing component includes a compass located below the housing and a first rotating and moving mechanism connected to the compass. The first rotating and moving mechanism is mounted on the circular track and can move along the track, driving the compass to move circumferentially along the inner wall of the exploration well, ensuring that the compass dial is always parallel to the inner wall at the corresponding position. The image acquisition component includes a camera module located below the housing and a second rotating and moving mechanism connected to the camera module. The second rotating and moving mechanism is mounted on the circular track and can move along the track, driving the camera module to move circumferentially along the inner wall of the exploration well, ensuring that the camera module is always perpendicular to the compass dial. This invention provides a complete and accurate description of stratigraphic attitude, eliminating the need for geotechnical technicians to personally enter the exploration well for observation.

Description

Technical Field

[0001] This invention belongs to the field of stratigraphic parameter determination in geotechnical engineering exploration technology, specifically relating to a device for determining stratigraphic occurrence in exploration wells and its usage method. Background Technology

[0002] With social development, various construction projects have sprung up across the country. According to relevant laws and regulations, geotechnical investigations must be conducted before the design and construction of any construction project. Specifically, geotechnical investigation specifications require well excavation during field exploration of loess areas. This involves collecting soil and rock samples from the wells to describe and determine the geological properties and parameters of the strata, comprehensively evaluating the impact of the site's soil and rock layers on the foundation of the proposed building. In recent years, with the continuous standardization of engineering construction processes, the requirements for geotechnical investigations of engineering projects have become increasingly stringent. In particular, with the continuous updating of relevant industry specifications and standards, higher requirements have been placed on the description and recording of the soil and rock layers in the well walls during geotechnical engineering field exploration: for example, ① the described and recorded stratigraphic attitude must be true and accurate; ② the described and recorded stratigraphic attitude must be continuous and comprehensive.

[0003] Currently, there are two main methods for describing and recording the stratigraphic attitude of well walls during geotechnical engineering field exploration: The first method involves geotechnical technicians personally descending into wells with a vertical depth of 20m to 30m to observe the stratigraphic conditions with the naked eye and make records; the second method involves using mechanical equipment to collect soil and rock samples at regular depths within the well and sending them to the surface, where ground technicians then describe and record the stratigraphic attitude based on the soil and rock samples.

[0004] The current methods for describing and recording the stratigraphic attitude of well walls in geotechnical engineering field exploration have the following technical problems: First, the method of geotechnical technicians personally entering the well for observation. While this method allows technicians to visually inspect the well walls and stratigraphic conditions, it poses a significant safety hazard. If the well collapses, personnel will be buried 20-30 meters deep, making rescue extremely difficult and potentially leading to fatal accidents. Second, the method of using mechanical equipment to collect soil and rock samples at regular depths within the well and then sending them to the surface, where geotechnical technicians describe and record the samples at the wellhead. While this method avoids the risk of fatalities, this point-to-surface approach may have drawbacks such as: ① inability to accurately determine the stratigraphic attitude; ② inability to continuously and comprehensively describe the stratigraphic attitude. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides a device and method for determining the stratigraphic attitude in exploration wells. The purpose is to solve the safety hazards of well collapse and personnel burial caused by the method of geotechnical technicians personally entering the exploration well for observation, as well as the problems of incomplete, discontinuous and omissions in the description and recording method of "point" instead of "area".

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] A device for determining the attitude of strata in an exploration well, comprising:

[0008] A housing, wherein a ring track is provided circumferentially on the inner wall of the housing;

[0009] The orientation sensing component includes a compass located below the housing and a first rotating and moving mechanism connected to the compass. The first rotating and moving mechanism is mounted on the annular track and can move along the annular track, driving the compass to move circumferentially along the inner wall of the well, and can make the dial of the compass always parallel to the inner wall of the well at the corresponding position.

[0010] The image acquisition component includes a camera module located below the housing and a second rotating and moving mechanism connected to the camera module. The second rotating and moving mechanism is mounted on the annular track and can move along the annular track, driving the camera module to move circumferentially along the inner wall of the exploration well, and ensuring that the camera module is always perpendicular to the dial of the compass.

[0011] Furthermore, the annular track is an internal toothed ring;

[0012] The first rotary movement mechanism includes a first gear, a first connecting shaft, a first moving drive device, and a first rotary drive device. The first gear meshes with the internal gear ring. The first connecting shaft is fixed vertically in the center hole of the first gear. The first moving drive device is fixedly connected to the first gear. The driving end of the first moving drive device is connected to the first connecting shaft. The lower end of the first connecting shaft extends out of the bottom of the housing and is connected to the non-driving end of the first rotary drive device. The driving end of the first rotary drive device is fixedly connected to the compass.

[0013] Furthermore, the image acquisition component also includes a directional light source, which is connected to the second rotating and moving mechanism. The second rotating and moving mechanism can drive the directional light source to move circumferentially along the inner wall of the well, and can ensure that the directional light source is always perpendicular to the dial of the compass.

[0014] Furthermore, the image acquisition component also includes a laser rangefinder, which is connected to the second rotating and moving mechanism. The second rotating and moving mechanism can drive the laser rangefinder to move circumferentially along the inner wall of the well, and can ensure that the laser rangefinder is always perpendicular to the dial of the compass.

[0015] Furthermore, the annular track is an internal toothed ring;

[0016] The second rotary movement mechanism includes a second gear, a second connecting shaft, a second moving drive device, a second rotary drive device, and a base. The camera module, the directional light source, and the laser rangefinder are all fixed on the base. The second gear meshes with the internal gear ring. The second connecting shaft is fixed vertically in the center hole of the second gear. The second moving drive device is fixedly connected to the second gear, and the drive end of the second moving drive device is connected to the second connecting shaft. The lower end of the second connecting shaft extends out of the bottom of the housing and is movably connected to the base. The lower half of the second connecting shaft is provided with teeth. The second rotary drive device is fixed on the base, and the drive end of the second rotary drive device is connected to a transmission gear that meshes with the teeth.

[0017] Furthermore, the second connecting shaft is connected to the base via a bearing.

[0018] Furthermore, the measuring device also includes:

[0019] A housing positioning component is assembled on the housing and is used to position the housing on the inner wall of the exploration well.

[0020] Furthermore, the housing positioning component includes a crossbeam, telescopic rods, and a telescopic drive mechanism. The crossbeam is connected to the housing, and two telescopic rods are disposed inside the crossbeam. The telescopic drive mechanism is disposed between the two telescopic rods, and the telescopic drive mechanism can drive the two telescopic rods to extend from both ends of the crossbeam, pass through the housing, and insert into the inner wall of the exploration well.

[0021] Furthermore, the measuring device also includes:

[0022] An execution control and data storage handbook is electrically connected to the first rotary movement mechanism, the camera module, and the second rotary movement mechanism.

[0023] A method for using a formation attitude determination device in an exploration well includes:

[0024] The measuring device is lowered into the well, and the housing is fixed to the inner wall of the well.

[0025] The compass is aligned with the formation attitude within the exploration well. The first rotating and moving mechanism is controlled to move along the annular track, causing the compass to move circumferentially along the inner wall of the exploration well, ensuring that the compass dial is always parallel to the inner wall of the exploration well at the corresponding position. Simultaneously, the second rotating and moving mechanism is controlled to move along the annular track, causing the camera module to move circumferentially along the inner wall of the exploration well, ensuring that the camera module is always perpendicular to the compass dial, and the camera module captures a map of the formation attitude within the exploration well.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] This invention provides a device for determining the attitude of strata in an exploration well. In use, the device is lowered into the well, and the housing is fixed to the inner wall of the well, ensuring the compass conforms to the attitude of the strata within the well. A first rotating mechanism is controlled to move along a circular track, causing the compass to move circumferentially along the inner wall of the well, ensuring the compass dial is always parallel to the corresponding position on the inner wall. Simultaneously, a second rotating mechanism is controlled to move along a circular track, causing a camera module to move circumferentially along the inner wall of the well, ensuring the camera module is always perpendicular to the compass dial. The camera module captures an image of the attitude of the strata within the well. As can be seen, this invention can lower the strata attitude determination device in the exploration well to a specified depth. The camera module at the bottom of the device takes 360-degree photos and videos of the rock strata on the well wall. The device's built-in compass and rangefinder locate and measure the stratigraphic attitude lines in each image. Finally, the images are stitched together to form a complete, accurate, and measurable stratigraphic attitude line map of the exploration well wall. With this stratigraphic attitude line map, geotechnical technicians can comprehensively and meticulously determine the stratigraphic attitude parameters without having to go down into the exploration well for observation.

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a formation occurrence measuring device in an exploration well according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the orientation sensing component in a formation occurrence determination device for exploration wells according to an embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of the image acquisition component in a well formation occurrence determination device according to an embodiment of the present invention;

[0033] Figure 4 This is a front structural diagram of the control and data storage handbook in a formation occurrence determination device in an exploration well according to an embodiment of the present invention.

[0034] In the diagram: 1-House; 2-Circular track; 3-House positioning component; 30-Crossbeam; 31-Telescopic rod needle; 32-Telescopic drive mechanism; 4-Orientation sensing component; 40-Compass; 41-First rotating movement mechanism; 410-First gear; 411-First connecting shaft; 412-Second rotating drive device; 5-Image acquisition component; 50-Camera module; 51-Second rotating movement mechanism; 510-Second gear; 511-Second connecting shaft; 512-Fourth rotating drive device; 513-Base; 514-Transmission gear; 515-Bearing; 52-Directional light source; 53-Laser rangefinder; 6-Traction rope; 7-Execution control and data storage handbook; 8-Limit ring; 9-Cable. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Combination Figure 1 , Figure 2 and Figure 3 As shown in the figure, an embodiment of the present invention provides a stratum occurrence determination device in an exploration well, comprising a housing 1, an orientation sensing component 4, and an image acquisition component 5, wherein a ring track 2 is provided circumferentially on the inner wall of the housing 1.

[0037] like Figure 2As shown, the orientation sensing component 4 includes a compass 40 located below the housing 1, and a first rotary movement mechanism 41 connected to the compass 40. The first rotary movement mechanism 41 is mounted on a circular track 2 and can move along the circular track 2, driving the compass 40 to move circumferentially along the inner wall of the well, and ensuring that the dial of the compass 40 is always parallel to the inner wall of the well at the corresponding position. In other words, the first rotary movement mechanism 41 can both drive the compass 40 to move circumferentially along the inner wall of the well and ensure that the dial of the compass 40 remains parallel to the inner wall of the well at the corresponding position during the movement, thus ensuring the ability to determine the formation attitude around the inner wall of the well. For example, the compass 40 is an electronic compass.

[0038] like Figure 3 As shown, the image acquisition component 5 includes a camera module 50 located below the housing 1, and a second rotary moving mechanism 51 connected to the camera module 50. The second rotary moving mechanism 51 is mounted on a circular track 2 and can move along the circular track 2, driving the camera module 50 to move circumferentially along the inner wall of the well, and ensuring that the camera module 50 is always perpendicular to the dial of the compass 40. In other words, the second rotary moving mechanism 51 can both drive the camera module 50 to move circumferentially along the inner wall of the well and ensure that the camera module 50 remains perpendicular to the dial of the compass 40 during its movement, thus ensuring the determination of the stratigraphic attitude around the inner wall of the well. The camera module 50 captures stratigraphic attitude lines, and the compass 40 positions each stratigraphic attitude line captured by the camera module 50. For example, the camera module 50 is a short-throw video recording camera, specifically a high-definition, macro camera.

[0039] Specifically, during use, the measuring device is lowered into the well, and the housing 1 is fixed to the inner wall of the well. The compass 40 is aligned with the formation attitude within the well. The first rotating moving mechanism 41 is controlled to move along the annular track 2, causing the compass 40 to move circumferentially along the inner wall of the well, ensuring that the dial of the compass 40 is always parallel to the inner wall at the corresponding position. Simultaneously, the second rotating moving mechanism 51 is controlled to move along the annular track 2, causing the camera module 50 to move circumferentially along the inner wall of the well, ensuring that the camera module 50 is always perpendicular to the dial of the compass 40. The camera module 50 captures a formation attitude map of the well. Finally, the images captured by the camera module 50 are stitched together to form a complete, accurate, and measurable formation attitude line of the well wall.

[0040] In one embodiment, such as Figure 1 As shown, the annular track 2 is an internally geared ring, which is fixed to the inner wall of the housing 1. (Combined) Figure 2As shown, the first rotary moving mechanism 41 includes a first gear 410, a first connecting shaft 411, a first moving drive device, and a first rotary drive device 412. The first gear 410 meshes with an internal gear ring. To ensure reliable meshing between the first gear 410 and the internal gear ring and prevent disengagement, a limiting ring 8 is provided on the other side of the first gear 410. The first connecting shaft 411 is fixed vertically in the center hole of the first gear 410. The first moving drive device is fixedly connected to the first gear 410, and the driving end of the first moving drive device is connected to the first connecting shaft 411. The lower end of the first connecting shaft 411 extends out of the bottom of the housing 1 and is connected to the non-driving end of the first rotary drive device 412. The driving end of the first rotary drive device 412 is fixedly connected to the compass 40.

[0041] In detail, the first moving drive device drives the first connecting shaft 411 to rotate, which in turn drives the first gear 410 to rotate, causing the first gear 410 to move circumferentially along the internal gear ring, thereby driving the compass 40 to move circumferentially along the inner wall of the exploration well. Simultaneously, the first rotating drive device 412 controls the dial of the compass 40 to remain parallel to the inner wall of the exploration well at the corresponding position. Specifically, both the first moving drive device and the first rotating drive device 412 are servo motors.

[0042] Better, such as Figure 1 and Figure 3 As shown, the image acquisition component 5 also includes a directional light source 52, which is connected to a second rotating and moving mechanism 51. The second rotating and moving mechanism 51 can drive the directional light source 52 to move circumferentially along the inner wall of the well, and can ensure that the directional light source 52 is always perpendicular to the dial of the compass 40. The directional light source 52 illuminates the shooting position of the camera module 50 to provide a sufficiently clear shooting environment. For example, the directional light source 52 is a brightness-adjustable directional light source.

[0043] Preferably, the image acquisition component 5 also includes a laser rangefinder 53, which is connected to a second rotary movement mechanism 51. The second rotary movement mechanism 51 can drive the laser rangefinder 53 to move circumferentially along the inner wall of the well, and can ensure that the laser rangefinder 53 is always perpendicular to the dial of the compass 40. The laser rangefinder 53 measures the distance to each stratigraphic dip line captured by the camera module 50.

[0044] In one embodiment, combined with Figure 3As shown, the second rotary moving mechanism 51 includes a second gear 510, a second connecting shaft 511, a second moving drive device, a second rotary drive device 512, and a base 513. The camera module 50, the directional light source 52, and the laser rangefinder 53 are all fixed on the base 513. That is, the camera module 50, the directional light source 52, and the laser rangefinder 53 are integrated and installed using the base 513. The second gear 510 meshes with an internal gear ring. The second connecting shaft 511 is fixed vertically in the center hole of the second gear 510. The second moving drive device is fixedly connected to the second gear 510, and the drive end of the second moving drive device is connected to the second connecting shaft 511. The lower end of the second connecting shaft 511 extends out of the bottom of the housing 1 and is movably connected to the base 513. Preferably, the second connecting shaft 511 and the base 513 are connected by a bearing 515, that is, the outer ring of the bearing 515 is fixedly connected to the base 513, and the inner ring of the bearing 515 is fixedly connected to the second connecting shaft 511. The lower half of the second connecting shaft 511 is provided with teeth, the second rotary drive device 512 is fixed on the base 513, and the drive end of the second rotary drive device 512 is connected to a transmission gear 514 that meshes with the teeth.

[0045] Specifically, the second moving drive device drives the second connecting shaft 511 to rotate, which in turn drives the second gear 510 to rotate. This causes the second gear 510 to move circumferentially along the inner gear ring, which in turn causes the base 513 to move circumferentially along the inner wall of the well. This enables the camera module 50, the directional light source 52, and the laser rangefinder 53 integrated on the base 513 to move circumferentially along the inner wall of the well. At the same time, the second rotating drive device 512 drives the transmission gear 514 to rotate. The transmission gear 514 meshes with the teeth on the lower half of the second connecting shaft 511, ensuring that the camera module 50, the directional light source 52, and the laser rangefinder 53 are always perpendicular to the dial of the compass 40.

[0046] Based on the above embodiments, as a more preferred embodiment, such as Figure 1 As shown, the measuring device also includes a housing positioning component 3, which is mounted on the housing 1. The housing positioning component 3 can be used to position the housing 1 on the inner wall of the well. In other words, after the housing 1 is lowered to the target depth in the well, the housing positioning component 3 is used to fix the housing 1, ensuring that the subsequent measuring process is stable and reliable.

[0047] Preferred, such as Figure 1As shown, the housing positioning component 3 includes a crossbeam 30, telescopic rods 31, and a telescopic drive mechanism 32. The crossbeam 30 is connected to the housing 1. Two telescopic rods 31 are installed inside the crossbeam 30, and the telescopic drive mechanism 32 is installed between the two telescopic rods 31. The telescopic drive mechanism 32 can drive the two telescopic rods 31 to extend from both ends of the crossbeam 30, pass through the housing 1, and insert into the inner wall of the well. Specifically, the crossbeam 30 is fixedly connected to the inner side of the housing 1. Holes for the telescopic rods 31 to enter and exit are pre-drilled on the housing 1. When it is necessary to fix the housing 1, simply control the telescopic drive mechanism 32 to drive the two telescopic rods 31 to extend from both ends of the crossbeam 30, pass through the corresponding holes on the housing 1, and insert into the inner wall of the well to quickly achieve fixation. When it is necessary to release the fixation, simply control the telescopic drive mechanism 32 to drive the two telescopic rods 31 to retract from both ends of the crossbeam 30 to quickly release the fixation.

[0048] like Figure 1 As shown in the specific example, two crossbeams 30 are assembled in a cross shape on the housing 1. Each of the two crossbeams 30 is provided with a telescopic rod pin 31 and a telescopic drive mechanism 32, which can make the positioning of the housing 1 more secure and reliable.

[0049] For example, the specific structure of the telescopic drive mechanism 32 is as follows: it includes a motor, a gear at the motor drive end, and a rack meshing with the gear. The telescopic rod needle 31 is connected to the rack. By controlling the direction of the gear through the motor, the reciprocating motion of the rack is realized, thereby realizing the extension and retraction of the telescopic rod needle 31.

[0050] For example, the housing positioning component 3 can also be an elastic outrigger wheel that fixes the entire device in the exploration well.

[0051] Combination Figure 1 and Figure 4 As shown, preferably, a traction rope 6 is connected to the crossbeam 30, and the measuring device is raised and lowered using the traction rope 6, which facilitates operation and control. For example, the traction rope 6 is a high-tensile-resistance rope.

[0052] Based on the above embodiments, as a more preferred embodiment, combined with Figure 4As shown, the measuring device also includes an execution control and data storage handbook 7, which is electrically connected to the first rotary movement mechanism 41, the camera module 50, and the second rotary movement mechanism 51. The control and data storage handbook 7 is used to control the operation of each actuator in the measuring device and to store data collected by the camera module 50 and the laser rangefinder 53. Specifically, the execution control and data storage handbook 7 is electrically connected to the telescopic drive mechanism 32, the first movement drive device, the first rotary drive device 412, the second movement drive device, the second rotary drive device 512, the camera module 50, the directional light source 52, and the laser rangefinder 53 via a cable 9. The cable 9 is integrated into the traction rope 6 and descends with the traction rope 6.

[0053] An embodiment of the present invention discloses a method for using a formation occurrence determination device in an exploration well, comprising:

[0054] The measuring device is lowered into the well, and the housing 1 is fixed to the inner wall of the well.

[0055] The compass 40 is aligned with the formation orientation within the well. The first rotating and moving mechanism 41 is controlled to move along the annular track 2, causing the compass 40 to move circumferentially along the inner wall of the well, ensuring that the dial of the compass 40 is always parallel to the inner wall of the well at the corresponding position. Simultaneously, the second rotating and moving mechanism 51 is controlled to move along the annular track 2, causing the camera module 50 to move circumferentially along the inner wall of the well, ensuring that the camera module 50 is always perpendicular to the dial of the compass 40, and the camera module 50 captures a diagram of the formation orientation within the well.

[0056] In one embodiment, when it is necessary to determine the formation attitude in the exploration well, the first rotating moving mechanism 41 and the second rotating moving mechanism 51 corresponding to the azimuth sensing component 4 and the image acquisition component 5 are first connected to the annular track 2 on the housing 1. Specifically, the first gear 410 and the second gear 510 are engaged with the internal gear ring. Then, the entire device is hoisted into the location in the exploration well where the formation attitude needs to be measured by the traction rope 6. The telescopic drive mechanism 32 set in the crossbeam 30 is controlled by the execution control and data storage handbook 7 to make the telescopic rod needle 31 extend out of the device. The protective casing 1 is inserted into the well wall to fix the entire device in the well. Then, the first moving drive device and the first rotating drive device 412 work together to make the compass 40 fit the formation attitude of the well. At the same time, the second moving drive device and the second rotating drive device 512 work together to make the camera module 50, the directional light source 52 and the laser rangefinder 53 be aligned with the compass 40 and the formation attitude line it measures. The device measures and records a circle along the formation attitude line and the well wall. Finally, the formation attitude parameters are derived from the intersection shape of the formation attitude line and the well wall.

[0057] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A formation evaluation device for use in a wellbore, comprising: The utility model relates to a kind of wellbore surveying device, including: Shell (1), annular track (2) is provided on the inner wall of the shell (1) along circumference direction; Azimuth sensing assembly (4), the compass (40) is located below the shell (1), and first rotating movement mechanism (41) is connected with the compass (40), the first rotating movement mechanism (41) is assembled on the annular track (2), the first rotating movement mechanism (41) can be moved along the annular track (2), drive the compass (40) along the circumferential movement of wellbore inner wall, and the dial of the compass (40) can be always parallel with the wellbore inner wall of corresponding position; The annular track (2) is inner tooth ring; The first rotating movement mechanism (41) includes first gear (410), first connecting shaft (411), first movement driving device and first rotating driving device (412), the first gear (410) is engaged with the inner tooth ring, the first connecting shaft (411) is fixed in the center hole of the first gear (410) along vertical direction, the first movement driving device is fixedly connected with the first gear (410), and the driving end of the first movement driving device is connected with the first connecting shaft (411);The lower end of the first connecting shaft (411) extends out of the bottom of the shell (1) and is connected with the non-driving end of the first rotating driving device (412), and the driving end of the first rotating driving device (412) is fixedly connected with the compass (40); Image acquisition assembly (5), the camera module (50) is located below the shell (1), and second rotating movement mechanism (51) is connected with the camera module (50), the second rotating movement mechanism (51) is assembled on the annular track (2), the second rotating movement mechanism (51) can be moved along the annular track (2), drive the camera module (50) along the circumferential movement of wellbore inner wall, and the camera module (50) can be always in vertical state with the dial of the compass (40); The second rotating movement mechanism (51) includes second gear (510), second connecting shaft (511), second movement driving device, second rotating driving device (512) and base (513), the second gear (510) is engaged with the inner tooth ring, the second connecting shaft (511) is fixed in the center hole of the second gear (510) along vertical direction, the second movement driving device is fixedly connected with the second gear (510), and the driving end of the second movement driving device is connected with the second connecting shaft (511);The lower end of the second connecting shaft (511) extends out of the bottom of the shell (1) and is movably connected with the base (513), the lower half of the second connecting shaft (511) is provided with tooth, the second rotating driving device (512) is fixed on the base (513), and the driving end of the second rotating driving device (512) is connected with the transmission gear (514) engaged with the tooth.

2. A device for determining formation properties in a well according to claim 1, characterized in that The image acquisition assembly (5) further comprises a directional light source (52), which is connected with the second rotating movement mechanism (51), the second rotating movement mechanism (51) can drive the directional light source (52) to move along the inner wall of the exploratory well in the circumferential direction, and can make the directional light source (52) always be perpendicular to the dial of the compass (40).

3. A device for determining formation properties in a well according to claim 2, characterized in that The image acquisition assembly (5) further comprises a laser range finder (53), which is connected with the second rotating movement mechanism (51), the second rotating movement mechanism (51) can drive the laser range finder (53) to move along the inner wall of the exploratory well in the circumferential direction, and can make the laser range finder (53) always be perpendicular to the dial of the compass (40).

4. A device for determining formation properties in a well according to claim 1, characterized in that The second connecting shaft (511) and the base (513) are connected through a bearing (515).

5. A device for determining formation properties in a well according to claim 1, characterized in that The measuring device further comprises: A shell positioning component (3) is assembled on the shell (1), and the shell positioning component (3) is used for positioning the shell (1) on the inner wall of the exploratory well.

6. A device for determining formation properties in a well according to claim 5, characterized in that The shell positioning component (3) comprises a cross beam (30), telescopic rod needles (31) and a telescopic driving mechanism (32), the cross beam (30) is connected on the shell (1), two telescopic rod needles (31) are arranged in the cross beam (30), and the telescopic driving mechanism (32) is arranged between the two telescopic rod needles (31), the telescopic driving mechanism (32) can drive the two telescopic rod needles (31) to extend from both ends of the cross beam (30) and then insert into the inner wall of the exploratory well after penetrating through the shell (1).

7. A device for determining formation properties in a well according to claim 1, wherein, The measuring device further comprises: An execution control and data storage notebook (7) is electrically connected with the first rotating movement mechanism (41), the camera module (50) and the second rotating movement mechanism (51).

8. A method of using a formation evaluation apparatus in a well according to any one of claims 1 to 7, characterized in that, It comprises: The measuring device is lowered into the exploratory well, and the shell (1) is fixed on the inner wall of the exploratory well; The compass (40) is attached to the formation occurrence in the exploratory well, the first rotating movement mechanism (41) is controlled to move along the annular track (2), the compass (40) is driven to move along the inner wall of the exploratory well in the circumferential direction, and the dial of the compass (40) is always parallel to the inner wall of the exploratory well at the corresponding position; at the same time, the second rotating movement mechanism (51) is controlled to move along the annular track (2), the camera module (50) is driven to move along the inner wall of the exploratory well in the circumferential direction, and the camera module (50) is always perpendicular to the dial of the compass (40), and the camera module (50) shoots the formation occurrence graph in the exploratory well.

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