Downhole data acquisition device and well drilling structure

Abstract

The invention relates to the technical field of well drilling, in particular to an underground data acquisition device and a well drilling structure, the device comprises a bearing assembly, an acquisition assembly and a release assembly, and the acquisition assembly and the release assembly are arranged on the bearing assembly and used for entering a well along with the bearing assembly; the bearing assembly comprises a connecting part used for being connected with a drill rod. The acquisition assembly comprises an acquisition sensor and a controller, and the acquisition sensor is used for acquiring data information in a well and sending the data information to the controller; the releasing assembly comprises a storage chip and a moving structure, the storage chip is used for receiving and storing data information sent by the controller, and the moving structure is used for releasing the storage chip out of the bearing assembly. After data collection and storage are completed, the storage chip is released out of the bearing assembly through the moving structure, the separated storage chip is sent out of a well, higher stability, reliability and adaptability are achieved for underground data collection, the operation efficiency of well drilling operation is improved, and the operation risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling, and in particular to a downhole data acquisition device and a drilling structure. Background Art

[0002] During the drilling operation in oil and gas fields, accurately obtaining multi-parameter data of the downhole environment (such as temperature, pressure, triaxial acceleration, drilling pressure, etc.) plays a vital role in judging the downhole conditions, optimizing the drilling process, and improving the operation efficiency. Conventional downhole data acquisition and transmission methods mainly rely on measurement while drilling (MWD) and logging while drilling (LWD) technology, which transmits the data collected downhole through mud pulse signals or electromagnetic waves, which has the following defects:

[0003] The transmission rate of mud pulse signals is low, especially in deep wells and complex well conditions. The transmission bandwidth is severely limited, resulting in a significant limit on the amount of downhole data transmitted in real time, which cannot meet the needs of comprehensive monitoring of downhole conditions.

[0004] In actual operation, factors such as changes in mud flow rate, downhole pressure fluctuations, and changes in wellbore curvature can easily cause signal distortion or interruption, which in turn causes downhole data loss or transmission delays, affecting the surface system's timely grasp of downhole conditions.

[0005] Existing technologies for underground data transmission often rely on a single signal transmission path. Once transmission fails or equipment malfunctions, data loss is inevitable. The lack of effective data redundancy and backup mechanisms increases the risk of underground data collection. Summary of the invention

[0006] In order to solve at least the above technical problems existing in the prior art, the present invention provides a downhole data acquisition device and a drilling structure.

[0007] On the one hand, the present invention provides a downhole data acquisition device, including a carrying component, a collection component and a release component, wherein the collection component and the release component are arranged on the carrying component and are used to enter the downhole with the carrying component; the carrying component includes a connecting part, and the connecting part is used to connect with the downhole equipment; the collection component includes a collection sensor and a controller, and the collection sensor is used to obtain data information in the well and send the data information to the controller; the release component includes a storage chip and a mobile structure, and the storage chip is used to receive and store the data information sent by the controller, and the mobile structure is used to release the storage chip to the outside of the carrying component.

[0008] In some embodiments, the bearing assembly includes a columnar bearing body, the bearing body includes a through hole penetrating along an axis; the connecting portion includes a first connecting structure and a second connecting structure provided at two ends of the bearing body.

[0009] In some embodiments, a receiving groove and a sealing cover are provided on the side wall of the carrier body; the sealing cover and the receiving groove are detachably connected, and the collection component is disposed in the receiving groove.

[0010] In some embodiments, the controller includes a data processing module and a threshold detection module; the data processing module is configured to receive the data information acquired by the acquisition sensor and pre-process the data information; the threshold detection module is configured to communicate with the data processing module and compare the data information with preset information. When the data information reaches a preset threshold, the data processing module stores the current data information to the storage chip.

[0011] In some embodiments, the controller further includes a redundant data generation module; the redundant data generation module is configured to receive the data information to be stored, generate at least two identical copies of the data information, and store multiple copies of the data information in different storage chips.

[0012] In some embodiments, the outer wall of the carrier body includes a circumferentially arranged annular groove with a set depth, and the outer wall of the carrier body is provided with release grooves on both sides of the annular groove, and the release grooves are connected to the annular groove; the movable structure includes a rotating ring, and the rotating ring includes a plurality of chip channels, and the chip channels are axially arranged along the rotating ring, and a plurality of storage chips are stacked in each chip channel, and the rotating ring is sleeved on the bottom of the annular groove, and the two ends of the rotating ring are in contact with the inner wall of the annular groove; the annular groove between two of the release grooves is a release position, and one of the chip channels of the rotating ring is rotated to the release position, and the chip channel is connected to the two release grooves.

[0013] In some embodiments, the movable structure includes an electric slip ring device, which includes a fixed part and a rotating part; the rotating part is the rotating ring, the rotating part is sleeved on the outside of the fixed part and is movably connected to the fixed part, and the fixed part is sleeved on the bottom of the annular groove and is fixedly connected to the bottom of the annular groove.

[0014] In some embodiments, the plurality of chip channels are evenly arranged along the circumference of the rotating ring, and the storage chip is arranged in some of the plurality of chip channels.

[0015] In some embodiments, the memory chip includes multiple layers of protection layers; and / or the memory chip includes an internal packaging layer, a buffer layer and an external protection layer.

[0016] Another aspect of the present invention provides a drilling structure, comprising the above-mentioned downhole data acquisition device.

[0017] The present invention provides a downhole data acquisition device and a drilling structure. During the operation, the acquisition component and the release component enter the downhole with the bearing component, and the downhole data is collected in real time by using the acquisition sensor, and the data information is stored in the storage chip; after the data acquisition and storage is completed, the storage chip is released to the outside of the bearing component through the mobile structure, and the separated storage chip is sent to the outside of the well, and the storage chip is collected outside the well. The technical solution of the present invention has higher stability, reliability and adaptability for collecting downhole data, which helps to improve the operating efficiency of drilling operations and reduce operating risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0019] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0020] Figure 1 A schematic diagram of the structure of a downhole data acquisition device provided by an embodiment of the present invention;

[0021] Figure 2 An axial cross-sectional view of a downhole data acquisition device provided by an embodiment of the present invention;

[0022] Figure 3 A radial cross-sectional view of a downhole data acquisition device provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of a bearing component in a downhole data acquisition device provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the structure of a release component in a downhole data acquisition device provided by an embodiment of the present invention;

[0025] Figure 6 This is a structural block diagram of a controller in a downhole data acquisition device provided in an embodiment of the present invention.

[0026] In the figure:

[0027] 10: bearing component; 20: acquisition component; 30: release component;

[0028] 11: bearing body; 12: first connection structure; 13: second connection structure; 14: receiving groove; 15: sealing cover; 16: annular groove; 17: release groove;

[0029] 21: acquisition sensor; 22: controller; 221: data processing module; 222: threshold detection module; 223: redundant data generation module; 224: wireless communication module;

[0030] 31: storage chip; 32: chip channel; 33: rotating ring; 34: fixing part. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] An embodiment of the present invention provides a downhole data acquisition device, including a carrying component, a collection component and a release component. The carrying component is used to carry the collection component and the release component, and is connected to the downhole equipment to enter the downhole synchronously; the collection component is used to acquire data information in real time downhole. After the collection is completed, the collection component is released by the release component, and the collection component sends the collected data to the outside of the well.

[0033] In the embodiment of the present invention, when the downhole data acquisition device is in use, the carrying component needs to bring the collection component and the release component to the required collection position. Specifically, the carrying component is connected to the downhole equipment. As the downhole equipment moves into the well, the carrying component can be moved into the well. After the collection component is released, the collection component located in the well is separated from the carrying component, and the collection component moves outside the well, thereby completing the collection of the collected data.

[0034] Among them, the operation of sending in the bearing component and the operation of recovering the collection component in the well can be carried out in various forms and in different ways.

[0035] For example, the downhole equipment is a drill pipe structure, and the bearing assembly is connected to the drill pipe. As the drill pipe rotates and moves, the bearing assembly (collection assembly and release assembly) moves synchronously to a certain depth, thereby completing the data collection in the well; or, for example, the bearing assembly is connected to the drill pipe or wire rope of the impact drill. As the impact drill pipe moves linearly, the bearing assembly moves synchronously to a certain depth, thereby completing the data collection in the well; or, for example, the bearing assembly is connected to the downhole motor. As the downhole motor moves, the bearing assembly moves synchronously to a certain depth, thereby completing the data collection in the well, or, for example, after the drilling is completed, the bearing assembly is separately sent into the well by the downhole equipment (such as the downhole platform), and the bearing assembly moves to a certain depth, thereby completing the data collection in the well.

[0036] For example, during drilling operations, drilling fluid is synchronously introduced into the well to form reflux mud in the well. After the collection component is released, it can move synchronously with the mud and flow back to the outside of the well. Or, for example, a circulating medium is introduced into the well, and the circulating medium circulates in the well. After the collection component is released, it can move synchronously with the circulating medium and flow back to the outside of the well. For example, the circulating medium can be air or foam.

[0037] The following is a detailed description of the components of the downhole data acquisition device provided by the embodiment of the present invention, the positional relationship between the components, and the connection relationship in conjunction with the accompanying drawings. The downhole equipment described below is a drill pipe, and when the collection component flows back, the mud is recovered through the returned mud. However, in the embodiment of the present invention, the downhole operation and recovery operation of the downhole data acquisition device are not limited to this.

[0038] like Figures 1 to 6 As shown, in the embodiment of the present invention, the bearing assembly 10 includes a connecting portion, which is used to connect to the drill pipe. The drill pipe will continue to move downhole when in use, and the corresponding bearing assembly 10 will continue to move downhole, obtain data information through the acquisition assembly 20, and send the structure storing the data information to the outside of the well through the release assembly 30.

[0039] For example, the bearing assembly 10 includes a columnar bearing body 11 , and the bearing body 11 includes a through hole penetrating along the axis; the connecting portion includes a first connecting structure 12 and a second connecting structure 13 provided at both ends of the bearing body 11 .

[0040] When the bearing body 11 is connected to the drill rod, for example, the drill rod is divided into two structures by the bearing body 11, and the first connecting structure 12 and the second connecting structure 13 at both ends of the bearing body 11 are respectively connected to the two structures, so that the drill rod and the bearing body 11 form an integral structure; wherein the through hole is connected to the middle through hole of the drill rod.

[0041] For example, the bearing body 11 and the drill rod are cylindrical structures with the same diameter. For example, the first connection structure 12 includes a male thread, and the second connection structure 13 includes a female nut.

[0042] For example, the carrier body 11 is arranged near the drill bit.

[0043] In the embodiment of the present invention, a receiving groove 14 and a sealing cover 15 are provided on the side wall of the carrier body 11; the collection component 20 is arranged in the receiving groove 14, and the sealing cover 15 and the receiving groove 14 are detachably connected. After the collection component 20 is placed in the receiving groove 14, the receiving groove 14 is closed by the sealing cover 15.

[0044] For example, a collection hole can be set on the sealing cover 15 according to the form of the collection component 20, such as a collection element of the sensor is set at the collection hole to achieve contact with the collection environment, wherein the collection element and the collection hole are sealed and connected.

[0045] In the embodiment of the present invention, a power slot is further provided on the side wall of the carrier body 11 , and the power slot is used to accommodate a power structure, and the power supply supplies power to the collection component 20 and the release component 30 .

[0046] Continue to refer Figures 1 to 6 As shown, in the embodiment of the present invention, the acquisition component 20 includes an acquisition sensor 21 and a controller 22. The acquisition sensor 21 is used to acquire data information in the well and send the data information to the controller 22. For example, the acquisition sensor 21 is used to acquire data information such as temperature, pressure, triaxial acceleration, drilling pressure, torque, vibration or triaxial angular velocity.

[0047] The acquisition sensor 21 acquires data information in the well in real time as the drill pipe moves, and sends the data information to the controller 22. After the controller 22 processes the data information, it stores the processed data information for subsequent release operations.

[0048] For example, the acquisition sensor 21 is modularly designed and can be flexibly adjusted according to different downhole environments and drilling requirements to select the acquisition sensor 21 actually required, thereby improving the versatility of the downhole data acquisition device.

[0049] The controller 22 includes a data processing module 221, a threshold detection module 222 and a redundant data generation module 223; the data processing module 221 receives the data information acquired by the acquisition sensor 21, and pre-processes the data information, and selects data with certain quality and accuracy through pre-processing. In the embodiment of the present invention, the pre-processing method of the data information is not limited.

[0050] In the acquisition component 20, the acquisition sensor 21 acquires the data information of the well in real time and can selectively store the data information. For example, when the drill pipe moves to a certain well depth, the data information is stored periodically, or after the drill pipe runs for a certain period of time, the periodic storage of data information can be started.

[0051] Or, for example, the data information is judged to determine whether the current data information is to be stored. The threshold detection module 222 is used to communicate with the data processing module 221 and compare the data information with the preset information. When the data information reaches the preset threshold, the data processing module 221 stores the current data information in the storage chip 31.

[0052] The threshold detection module 222 includes a storage unit in which preset information is pre-stored. For example, when any parameter information in the data information is greater than a threshold, the part of the information can be stored in the storage chip 31.

[0053] The redundant data generation module 223 is used to receive data information to be stored, generate at least two identical data information, and store multiple data information in different storage chips 31. The same data information is stored in multiple storage chips 31. After the storage chips 31 are recycled, if individual storage chips 31 have problems and fail, such as damage, etc., the same valid storage chip 31 can be recycled with a high probability, thereby ensuring the effectiveness of data collection.

[0054] For example, the controller 22 also includes a wireless communication module 224. When the storage chip 31 is used to store data, the wireless communication module 224 is used to transmit information; and operations such as threshold adjustment and alarm signal transmission can be performed through wireless communication, thereby further improving the security and real-time performance of the system.

[0055] Continue to refer Figures 1 to 6 As shown, in the embodiment of the present invention, the release component 30 includes a storage chip 31 and a mobile structure, the storage chip 31 is used to receive and store data information sent by the controller 22, and the mobile structure is used to release the storage chip 31 outside the carrier component 10.

[0056] The memory chip 31 is an independent structure, which is released into the returning mud by the release assembly 30, and flows back to the outside of the well under the action of the mud flow. The memory chip 31 and the controller 22 use wireless communication to store data.

[0057] Since the environment of the memory chip 31 is complex, it is necessary to effectively protect the memory chip to ensure that the memory chip 31 maintains integrity after returning to the well. For example, the memory chip 31 includes multiple layers of protection layers to protect the memory chip 31.

[0058] For example, the memory chip 31 includes an internal packaging layer, a buffer layer and an external protective layer. The external protective layer is used to prevent the memory chip 31 from being damaged by particles in the mud, pressure changes and chemical corrosion; the buffer layer is arranged on the inner side of the external protective layer to reduce the mechanical impact of the chip during the flow of the mud; the internal packaging layer is directly packaged on the memory chip 31 to prevent the memory chip 31 from being affected by the external environment.

[0059] For example, the outer wall of the carrier body 11 includes a circumferentially arranged annular groove 16 with a set depth, and the outer wall of the carrier body 11 is provided with release grooves 17 on both sides of the annular groove 16, and the release grooves 17 are connected to the annular groove 16; the movable structure includes a rotating ring 33, the rotating ring 33 includes a plurality of chip channels 32, the chip channels 32 are axially arranged along the rotating ring 33, and a plurality of storage chips 31 are stacked in each chip channel 32, the rotating ring 33 is sleeved on the bottom of the annular groove 16, and the two ends of the rotating ring 33 are in contact with the inner wall of the annular groove 16.

[0060] The annular groove 16 between the two release grooves 17 is a release position. When one of the chip channels 32 of the rotating ring 33 rotates to the release position, the chip channel 32 is communicated with the two release grooves 17 .

[0061] After the current chip channel 32 moves to the release position, it forms a through channel structure with the release groove 17. In the use state, there is reflux mud on the outer wall of the supporting body 11. Under the action of the fluid mud, the chip in the chip channel 32 is washed into the reflux mud and flows with the reflux mud until it flows out of the well.

[0062] For example, a plurality of chip channels 32 are evenly arranged along the circumference of the rotating ring 33, and a portion of the plurality of chip channels 32 is provided with a memory chip 31. For example, a chip channel 32 is included that is not filled with a memory chip 31. When the release assembly 30 is not activated, the chip channel 32 that is not filled with a memory chip 31 is located at a release position, and the refluxed slurry can flow normally therein. When the memory chip 31 needs to be released, the corresponding chip channel 32 can be switched.

[0063] In the embodiment of the present invention, the movable structure includes an electric slip ring device, which includes a fixed part 34 and a rotating part; the rotating part is a rotating collar 33, which is sleeved on the outside of the fixed part 34 and movably connected to the fixed part 34; the fixed part 34 is sleeved on the bottom of the annular groove 16 and fixedly connected to the bottom of the annular groove 16.

[0064] The electric slip ring device is used to realize the rotation of the rotating ring 33. For example, a plurality of chip channels 32 are evenly arranged in the axial direction of the rotating ring 33. Each time the electric slip ring device rotates a fixed angle, a release operation of the storage chip 31 can be realized.

[0065] The electric slip ring device includes a programmable controller, and the release logic of the storage chip 31 is controlled by the programmable controller, that is, the rotation frequency of the driving rotating ring 33 is controlled by the programmable controller. For example, the release frequency and quantity of the storage chip 31 are dynamically controlled according to the change of the downhole data. For example, when the collected parameter information increases or the change range of the parameter information becomes larger, the release frequency and quantity can be appropriately increased, or, for example, according to the change of the number of storage chips 31, the release frequency and quantity of the storage chip 31 are dynamically controlled. For example, when the number of storage chips 31 decreases, but the drilling is still in operation, the release frequency and quantity need to be appropriately reduced.

[0066] For example, release grooves 17 of the same length are respectively provided on both sides of the annular groove 16, and the length of the release groove 17 is set along the length direction of the supporting body 11. For example, a buffer slope with a certain inclination is provided at one end of the release groove 17 away from the annular groove 16, and the reflowing mud gradually enters the release groove 17, and then flows out smoothly from another release groove 17. This method can ensure the smooth flow of the mud and avoid the released storage chip 31 from being blocked in the release groove 17.

[0067] The embodiment of the present invention further provides a drilling structure, including the above-mentioned downhole data acquisition device. The downhole data acquisition device is connected to the drill pipe and forms an integrated structure with the drill pipe. During the drilling operation, the end of the drill pipe is connected to the drill bit, and the drill bit and the drill pipe continuously move into the well, wherein fluid is introduced into the drill pipe, the fluid flows out from the drill bit, and forms a reflux mud in the space between the outer wall of the drill pipe and the inner wall of the well.

[0068] The acquisition sensor 21 in the acquisition component 20 obtains downhole parameter information. For example, after a set time, or after the drill bit moves to a set depth, the acquisition sensor 21 starts the acquisition operation, and the controller 22 receives the data information sent by the acquisition sensor 21 and processes it. Finally, multiple identical processed data information are stored in multiple storage chips 31.

[0069] During non-release operation, the hollow chip channel 32 in the rotating ring 33 is located in the release position, and the chip channel 32 and the release grooves 17 on both sides can pass the refluxed mud; during release operation, the rotating ring 33 rotates, and the chip channel 32 filled with the storage chip 31 rotates to the release position. Under the action of the refluxed mud, the storage chip 31 is flushed out of the chip channel 32 and enters the mud, and continues to flow with the mud until it flows out of the well.

[0070] A collection device is set outside the well, such as multiple filters and collection chambers, and the mud flowing back from the well is washed onto the filter to filter out the storage chip 31; then, the storage chip 31 is read by a data reading device to obtain the data information stored therein. For example, the data reading device includes a decoding module, which is used to decode and verify the downhole data read from the storage chip 31 to ensure the integrity and correctness of the transmitted data.

[0071] The present invention provides a downhole data acquisition device and a drilling structure. During the operation, the acquisition component 20 and the release component 30 enter the downhole with the bearing component 10, and the downhole data is collected in real time by using the acquisition sensor 21, and the data information is stored in the storage chip 31; after the data collection and storage is completed, the storage chip 31 is released to the outside of the bearing component 10 through the mobile structure, and the separated storage chip 31 is sent to the outside of the well, and the storage chip 31 is collected outside the well. The technical solution of the present invention has higher stability, reliability and adaptability for collecting downhole data, which helps to improve the operation efficiency of drilling operations and reduce operation risks.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0074] The above are only specific embodiments of the present invention, but the protection scope of the present invention 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 by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A downhole data acquisition device, characterized in that: It comprises a bearing assembly (10), a collection assembly (20) and a release assembly (30), wherein the collection assembly (20) and the release assembly (30) are arranged on the bearing assembly (10) and are used to enter the well with the bearing assembly (10); The bearing assembly (10) comprises a connecting portion, and the connecting portion is used to connect with the downhole equipment; The acquisition component (20) comprises an acquisition sensor (21) and a controller (22), wherein the acquisition sensor (21) is used to acquire data information in the well and send the data information to the controller (22); The release component (30) comprises a storage chip (31) and a moving structure, the storage chip (31) being used to receive and store the data information sent by the controller (22), and the moving structure being used to release the storage chip (31) outside the carrying component (10).

2. The downhole data acquisition device according to claim 1, characterized in that: The bearing assembly (10) comprises a columnar bearing body (11), wherein the bearing body (11) comprises a through hole penetrating along an axis; The connection portion comprises a first connection structure (12) and a second connection structure (13) which are arranged at two ends of the bearing body (11).

3. The downhole data acquisition device according to claim 2, characterized in that: The side wall of the bearing body (11) is provided with a receiving groove (14) and a sealing cover (15); The sealing cover (15) and the containing groove (14) are detachably connected, and the collecting assembly (20) is arranged in the containing groove (14).

4. The downhole data acquisition device according to claim 1, characterized in that: The controller (22) comprises a data processing module (221) and a threshold detection module (222); The data processing module (221) is configured to receive the data information acquired by the acquisition sensor (21) and pre-process the data information; The threshold detection module (222) is configured to communicate with the data processing module (221) and compare the data information with preset information; when the data information reaches a preset threshold, the data processing module (221) stores the current data information in the storage chip (31).

5. The downhole data acquisition device according to claim 4, characterized in that: The controller (22) further includes a redundant data generating module (223); The redundant data generation module (223) is configured to receive the data information to be stored, generate at least two identical copies of the data information, and store the multiple copies of the data information in different storage chips (31).

6. The downhole data acquisition device according to claim 1, characterized in that: The outer wall of the bearing body (11) comprises an annular groove (16) which is arranged circumferentially and has a set depth, and the outer wall of the bearing body (11) is provided with release grooves (17) on both sides of the annular groove (16), and the release grooves (17) are communicated with the annular groove (16); The moving structure comprises a rotating collar (33), the rotating collar (33) comprises a plurality of chip channels (32), the chip channels (32) are arranged axially along the rotating collar (33), a plurality of storage chips (31) are arranged in a stacked manner in each chip channel (32), the rotating collar (33) is sleeved on the bottom of the annular groove (16), and two ends of the rotating collar (33) are in contact with the inner wall of the annular groove (16); The annular groove (16) between the two release grooves (17) is a release position, and one of the chip channels (32) of the rotating ring (33) is rotated to the release position, and the chip channel (32) is connected to the two release grooves (17).

7. The downhole data acquisition device according to claim 6, characterized in that: The moving structure comprises an electric slip ring device, and the electric slip ring device comprises a fixed part (34) and a rotating part; The rotating part is the rotating collar (33), which is sleeved on the outside of the fixed part (34) and movably connected to the fixed part (34), and the fixed part (34) is sleeved on the bottom of the annular groove (16) and fixedly connected to the bottom of the annular groove (16).

8. The downhole data acquisition device according to claim 6, characterized in that: The plurality of chip channels (32) are evenly arranged along the circumference of the rotating collar (33), and the storage chip (31) is arranged in some of the chip channels (32) among the plurality of chip channels (32).

9. The downhole data acquisition device according to claim 1, characterized in that: The memory chip (31) comprises multiple layers of protection layers; and / or The storage chip (31) comprises an internal packaging layer, a buffer layer and an external protection layer.

10. A drilling structure, characterized in that: It comprises the downhole data acquisition device as described in any one of claims 1 to 9.

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