High-efficiency anti-vibration mechanical unit downhole probe
By introducing shock-absorbing components and limiting hole design into the downhole probe, the problems of damage and data instability of traditional downhole probes in extreme environments are solved, achieving high-efficiency shock resistance and ensuring the safety and efficiency of drilling operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA NAT PETROLEUM CORP
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional downhole probes are easily damaged in environments with strong vibration, high temperature and high pressure, leading to decreased sensor measurement accuracy, loose connection structure and unstable data transmission, which affects the safety and efficiency of drilling operations.
The downhole probe adopts a high-efficiency anti-vibration mechanical unit, including a vibration damping component, a quartz accelerometer, a magnetometer, and a connector T-head. The vibration damping component absorbs vibration energy, protects the sensor, and is equipped with limit holes to maintain accurate positioning and enhance connection stability.
It effectively protects sensors from vibration and shock, maintains measurement accuracy and data transmission stability, and enhances the shock resistance of downhole probes in extreme environments.
Smart Images

Figure CN122148292A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of seismic resistance technology for downhole pipe exploration, and is a highly efficient seismic-resistant mechanical unit downhole pipe exploration. Background Technology
[0002] With the deepening of oil and gas extraction, directional drilling technology has become an important part of the modern petroleum industry. Among them, the probe, as the core component of the drilling measurement-while-drilling instrument, plays a crucial role in directional drilling operations. With the need for a low-cost exploration and development strategy, drilling parameters are constantly being strengthened and mechanical drilling speed is constantly increasing. Therefore, the working environment faced by the probe in the process of extracting energy such as oil and natural gas is becoming increasingly severe.
[0003] As oil and natural gas extraction expands into deeper and more complex underground environments, downhole casing, as a critical piece of equipment in the drilling process, directly impacts the safety and efficiency of drilling operations due to its seismic resistance and stability. Traditional downhole casing is prone to performance degradation or even damage under harsh environments such as strong vibrations, high temperatures, and high pressures, severely affecting drilling operations.
[0004] The current impacts of drilling systems on seismic resistance mainly include: Precision sensors are susceptible to vibration: Precision components such as quartz gravimeters and magnetometers are easily affected by vibration, which can lead to data distortion and affect the accuracy of exploration results. High risk of loose connection structure: Vibration often causes components such as connector T-heads to loosen, affecting the stability and security of data transmission, and may even cause system failure; Inadequate overall seismic design: The lack of seismic design in traditional drilling systems makes it difficult for them to maintain a stable working state in complex vibration environments. Summary of the Invention
[0005] This invention provides a high-efficiency anti-vibration mechanical unit downhole probe, which overcomes the shortcomings of the prior art and can effectively solve the problem of data distortion caused by vibration in existing downhole probe sensors.
[0006] The technical solution of this invention is achieved through the following measures: a high-efficiency anti-vibration mechanical unit downhole probe, comprising a body, a quartz accelerometer, a first magnetometer, a second magnetometer, a third magnetometer, a connector T-head, and a shock-absorbing component. A connector T-head is installed at the left end of the body. From left to right, the first magnetometer, the second magnetometer, and the third magnetometer are sequentially installed on the left side of the body. A data processing module limiting groove is provided on the right side of the body of the third magnetometer. A first guide groove is provided on the body between the third magnetometer and the data processing module limiting groove. A limiting hole is provided in the middle of the body, and a quartz accelerometer is installed inside the limiting hole. A power module limiting groove and a communication control module limiting groove are provided on the right side of the body. A second guide groove is provided on the body between the limiting hole and the power module limiting groove and the communication control module limiting groove. The shock-absorbing component can absorb vibrations.
[0007] The following are further optimizations and / or improvements to the above-mentioned technical solution: Preferably, the shock absorption assembly includes an accelerometer shock absorption sleeve, which is made of double-layer shock absorption material and fits the outer surface of the quartz accelerometer.
[0008] Preferably, the quartz accelerometer is mounted on the body by fixing screws, and the quartz accelerometer is tightened by adjustable screws.
[0009] Preferably, the shock-absorbing component also includes a T-head anti-vibration rubber sleeve, which tightly wraps the connection between the connector T-head and the adjacent component and has an interference fit. The connector T-head consists of two interlocking halves that are fixedly installed by a limiting screw. The T-head anti-vibration rubber sleeve is made of a high-strength, high-elasticity special rubber material.
[0010] Preferably, the first magnetometer, the second magnetometer, and the third magnetometer are all fitted with magnetometer shock-absorbing sleeves. The first magnetometer, the second magnetometer, and the third magnetometer are respectively mounted on the body by magnetometer fixing screws and tightened by magnetometer adjustable screws.
[0011] Preferably, a sealing ring is provided on the outer side of the body.
[0012] Preferably, the quartz accelerometer, fixing screw, and adjusting screw are vacuum-sealed.
[0013] The present invention has a reasonable and compact structure and is easy to use. Through the shock absorption component, it can effectively absorb and disperse vibration energy, protect the sensor from impact, and further isolate the impact of vibration on the sensor. By setting the limiting hole, it can maintain accurate positioning, prevent deformation and misalignment caused by vibration, and improve the shock resistance of the downhole probe in extreme working environment. Attached Figure Description
[0014] Appendix Figure 1 This is a schematic diagram of the front cross-sectional structure according to an embodiment of the present invention.
[0015] Appendix Figure 2 This is a three-dimensional structural diagram of the present invention.
[0016] Appendix Figure 3 For the appendix Figure 1 A schematic diagram of the main structure.
[0017] Appendix Figure 4 For the appendix Figure 3 Cross-sectional view at point C.
[0018] Appendix Figure 5 For the appendix Figure 3 Cross-sectional view at point DD.
[0019] Appendix Figure 6 For the appendix Figure 3 Cross-sectional view at EE.
[0020] Appendix Figure 7 For the appendix Figure 3 Cross-sectional view at FF.
[0021] The codes in the attached diagram are as follows: 100, Body; 101, First Quartz Accelerometer; 102, First Magnetometer; 103, Second Magnetometer; 104, Third Magnetometer; 105, Quartz Gravity Accelerometer Limiting Hole; 106, First Magnetometer Limiting Hole; 107, Second Magnetometer Limiting Hole; 108, First Guide Groove; 109, Second Guide Groove; 110, Accelerometer Shock Absorber Sleeve; 111, Magnetometer Shock Absorber Sleeve; 112, Magnetometer Adjustable Screw; 113, Connector T-Head; 114, T-Head Anti-vibration Rubber Sleeve; 115, Sealing Ring; 116, Fixing Screw; 117, Magnetometer Fixing Screw; 118, Limiting Screw; 119, Adjustable Screw; 201, Power Module Limiting Groove; 202, Communication Control Module Limiting Groove; 203, Data Processing Module Limiting Groove. Detailed Implementation
[0022] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.
[0023] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.
[0024] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1-7As shown, the high-efficiency anti-vibration mechanical unit downhole probe includes a body 100, a quartz accelerometer 101, a first magnetometer 102, a second magnetometer 103, a third magnetometer 104, a connector T-head, and a shock-absorbing assembly. A connector T-head is installed at the left end of the body 100. From left to right, the first magnetometer 102, the second magnetometer 103, and the third magnetometer 104 are sequentially installed on the left side of the body 100. A data processing module limiting groove 203 is provided on the right side of the body 100 for the third magnetometer 104. A first guide groove 108 is provided on the main body 100 between the data processing module limiting groove 203 and the data processing module limiting groove 04. A limiting hole 105 is provided in the middle of the main body 100. A quartz accelerometer 101 is installed in the limiting hole 105. A power module limiting groove 201 and a communication control module limiting groove 202 are provided on the right side of the main body 100. A second guide groove 109 is provided on the main body 100 between the limiting hole 105 and the power module limiting groove 201 and the communication control module limiting groove 202. The shock absorption component can absorb vibration.
[0025] As needed, the main body 100 is also equipped with a temperature measurement module and a vibration detection module. The sensor, temperature measurement module, and vibration detection module are all connected to the data processing module. To eliminate the impact of temperature changes on measurement accuracy, this mechanical unit incorporates a software temperature compensation mechanism. This mechanism monitors the internal temperature changes of the main body 100 in real time and automatically adjusts the measurement parameters and algorithms based on the correspondence between different temperatures and measurement results to compensate for measurement errors caused by temperature changes, ensuring that the measurement data maintains high accuracy under different temperature conditions. This invention effectively absorbs and disperses vibration energy through shock-absorbing components, protecting the sensor from impact and further isolating the sensor from the influence of vibration. The limiting hole 105 maintains precise positioning, preventing deformation and misalignment caused by vibration, and improving the shock resistance of the downhole main body 100 in extreme working environments.
[0026] The aforementioned high-efficiency earthquake-resistant mechanical unit downhole probe can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 2 , 4 As shown, the shock absorption assembly includes an accelerometer damping sleeve 110, which is made of double-layer damping material and is attached to the outer surface of the quartz accelerometer 101. The accelerometer damping sleeve 110 effectively absorbs the impact generated by lateral vibration.
[0027] Example 3: As shown in the attached document Figure 4 , 7As shown, the quartz accelerometer 101 is mounted on the body 100 by a fixing screw 116 and is tightened by an adjustable screw 119. The fixing screw 116 and the adjustable screw 119 firmly fix the quartz accelerometer 101 inside the limiting hole 105, effectively absorbing the impact generated longitudinally.
[0028] Example 4: As shown in the appendix Figure 1 , 5 As shown, the shock-absorbing assembly also includes a T-joint anti-vibration sleeve 114. The T-joint anti-vibration sleeve 114 tightly wraps around the connection between the connector T-joint and adjacent components and has an interference fit. The connector T-joint consists of two interlocking halves secured by a limiting screw 118. The T-joint anti-vibration sleeve 114 is made of high-strength, high-elasticity special rubber material. The anti-vibration sleeve 114 not only effectively absorbs vibration energy and prevents loosening of the connection, but also enhances the sealing of the connection, ensuring the stability and security of data transmission.
[0029] Example 5: As shown in the attached document Figure 6 As shown, the first magnetometer 102, the second magnetometer 103, and the third magnetometer 104 are all fitted with magnetometer shock-absorbing sleeves 111. The first magnetometer 102, the second magnetometer 103, and the third magnetometer 104 are respectively mounted on the body 100 by magnetometer fixing screws 117 and tightened by magnetometer adjusting screws 112. The magnetometer shock-absorbing sleeves 111 absorb the vibration and impact of the magnetometers, protecting them.
[0030] Example 6: As shown in the appendix Figure 1 As shown, a sealing ring 115 is provided on the outer side of the main body 100. The deformation and displacement of the main body 100 under vibration conditions are limited by physical constraints, ensuring the stability of the overall structure.
[0031] Example 7: As attached Figure 1 , 4 As shown, the quartz accelerometer 101, the fixing screw 116, and the adjusting screw 119 are vacuum-sealed. Through precise sealing in a vacuum environment, a bubble-free, high-strength sealing layer is formed, effectively isolating external moisture and impurities from intrusion, while simultaneously enhancing the overall strength and stability of the structure.
[0032] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.
Claims
1. A high-efficiency earthquake-resistant mechanical unit downhole probe, characterized in that... The device includes a main body, a quartz accelerometer, a first magnetometer, a second magnetometer, a third magnetometer, a connector T-head, and a shock-absorbing assembly. The connector T-head is mounted on the left end of the main body. From left to right, the first magnetometer, second magnetometer, and third magnetometer are mounted on the left side of the main body. A data processing module limiting groove is located on the right side of the main body near the third magnetometer. A first guide groove is located on the main body between the third magnetometer and the data processing module limiting groove. A limiting hole is located in the middle of the main body, within which the quartz accelerometer is installed. A power module limiting groove and a communication control module limiting groove are located on the right side of the main body. A second guide groove is located on the main body between the limiting hole and the power module limiting groove and the communication control module limiting groove. The shock-absorbing assembly can absorb vibrations.
2. The high-efficiency earthquake-resistant mechanical unit downhole exploration pipe according to claim 1, characterized in that... The shock absorption assembly includes an accelerometer damping sleeve, which is made of double-layer damping material and fits the outer surface of the quartz accelerometer.
3. The high-efficiency earthquake-resistant mechanical unit downhole exploration pipe according to claim 2, characterized in that... The quartz accelerometer is mounted on the main body by fixing screws, and the quartz accelerometer is tightened by adjusting screws.
4. The high-efficiency earthquake-resistant mechanical unit downhole probe according to claim 1, 2, or 3, characterized in that... The shock absorption assembly also includes a T-head anti-vibration rubber sleeve. The T-head anti-vibration rubber sleeve tightly wraps the connection between the connector T-head and the adjacent component and has an interference fit. The connector T-head consists of two interlocking halves that are fixed in place by a limit screw. The T-head anti-vibration rubber sleeve is made of high-strength, high-elasticity special rubber material.
5. The high-efficiency earthquake-resistant mechanical unit downhole exploration pipe according to claim 1 or 2, characterized in that... The first, second, and third magnetometers are all fitted with magnetometer shock-absorbing sleeves. The first, second, and third magnetometers are respectively mounted on the main body by magnetometer fixing screws and tightened by magnetometer adjustable screws.
6. The high-efficiency earthquake-resistant mechanical unit downhole probe according to claim 4, characterized in that... The first, second, and third magnetometers are all fitted with magnetometer shock-absorbing sleeves. The first, second, and third magnetometers are respectively mounted on the main body by magnetometer fixing screws and tightened by magnetometer adjustable screws.
7. The high-efficiency earthquake-resistant mechanical unit downhole probe according to claim 1, 2, 3, or 6, characterized in that... A sealing ring is provided on the outside of the main body.
8. The high-efficiency earthquake-resistant mechanical unit downhole probe according to claim 4, characterized in that... A sealing ring is provided on the outside of the main body.
9. The high-efficiency earthquake-resistant mechanical unit downhole probe according to claim 5, characterized in that... A sealing ring is provided on the outside of the main body.
10. The high-efficiency earthquake-resistant mechanical unit downhole probe according to claim 3, 6, 8, or 9, characterized in that... The quartz accelerometer, fixing screws, and adjustable screws are vacuum-sealed.