Device for preventing logging probe from being clamped in hole
By designing a device to prevent the logging probe from getting stuck, the collection port and fixed tube are used to collect stones falling from the hole wall, thus solving the problem of probe getting stuck and achieving the stability and economic benefits of the logging process.
Patent Information
- Application Number
- CN202422482466.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Logging probes are prone to getting stuck in boreholes with poor engineering geological conditions due to hole wall breakage, leading to equipment failure and economic losses.
A device to prevent logging probe from getting stuck is designed. It includes a collecting port and a fixing cylinder, which are fixed by threaded connection and rubber gasket. The collecting port is used to collect stones falling from the hole wall to prevent the hole from getting stuck.
It effectively prevents the probe from getting stuck in the borehole, reduces equipment failures and economic losses, and ensures the smooth progress of logging work.
Smart Images
Figure CN223343991U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of geophysical exploration, and particularly relates to a device for preventing a logging probe from getting stuck. Background Art
[0002] Panoramic digital imaging of boreholes is widely used in geophysical exploration. This technology accurately measures rock mass structural parameters such as depth, dip, inclination, and fracture width, as well as the extent of in-hole fractures and cavities. This method, combined with in-hole acoustic testing, can effectively assess rock mass integrity and stability.
[0003] Generally, selecting the appropriate probe based on the borehole diameter ensures optimal testing. However, boreholes with poor geological conditions can be tilted, with broken walls and often accompanied by wall fragmentation. This can lead to probe jamming and failure during operation, making it impossible to remove the probe from the hole. The probe is one of the most critical components of a panoramic digital imaging system, and a probe failure can disrupt the entire system. Its price ranges from one-fifth to one-third of the total equipment cost. A probe jam can result in direct financial losses and prevent subsequent work from being carried out. Utility Model Content
[0004] In order to overcome the problem that existing logging probes are prone to getting stuck in the wellbore during wellbore testing, the purpose of the utility model is to provide a device for preventing logging probes from getting stuck in the wellbore. By using a collection port and a fixing tube, rocks that fall from the hole wall can be collected during the logging process to avoid them getting stuck between the hole wall and the probe, causing the probe to get stuck in the wellbore.
[0005] The technical solution of the utility model is: a device for preventing a logging probe from getting stuck, which is provided with a collecting port and a fixing tube in sequence from top to bottom, wherein the collecting port is in a bell-shaped shape, a connecting port is provided on the upper part of the fixing tube, a smaller end of the bell-shaped vertical well of the collecting port is threadedly connected to the connecting port, a plurality of fixing holes are provided on the surface of the fixing tube, and nuts are provided in the fixing holes.
[0006] A rubber gasket is provided at the bottom of the fixing hole.
[0007] The surface of the fixing cylinder is provided with two groups of fixing holes, one above the other, each group of fixing holes having four holes, which are evenly distributed along the circumference of the fixing cylinder.
[0008] The technical effect of the utility model is that the utility model can collect stones falling from the hole wall during the logging process by using the collection port and the fixing tube, so as to avoid the stones being stuck between the hole wall and the probe and causing the probe to get stuck in the hole.
[0009] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The utility model is a structural schematic diagram of a device for preventing a well logging probe from getting stuck.
[0011] Reference numerals: 1 - collecting port; 2 - connecting port; 3 - fixing cylinder; 4 - fixing hole; 5 - nut. DETAILED DESCRIPTION Example 1
[0012] like Figure 1 As shown, a device for preventing a logging probe from getting stuck in a hole is provided, from top to bottom, with a collecting port 1 and a fixing tube 3. The collecting port 1 is in a bell-mouth shape, and a connecting port 2 is provided on the upper part of the fixing tube 3. The smaller end of the bell-mouth vertical well of the collecting port 1 is threadedly connected to the connecting port 2. A plurality of fixing holes 4 are provided on the surface of the fixing tube 3, and nuts 5 are provided in the fixing holes 4.
[0013] When using the present invention, the probe is placed in the fixing tube 3 and fixed with a nut 5. A collection port 1 adapted to the aperture size is connected to the fixing tube 3, and the entire collection port 1 is fixed above the probe. When the probe begins to work, the collection port 1 enters the hole along with the probe. If the hole wall breaks and rocks fall, the collection port 1 collects them in the bell mouth, preventing the hole from getting stuck and reducing economic losses. Example 2
[0014] On the basis of embodiment 1, in this embodiment, preferably, a rubber gasket is provided at the bottom of the fixing hole 4 .
[0015] The bottom of the fixing hole 4 of the present invention is provided with a rubber gasket. When in use, the rubber gasket is added between the fixing tube 3 and the probe to increase friction and stability. Example 3
[0016] On the basis of Example 1 or Example 2, in this embodiment, preferably, two groups of upper and lower fixing holes 4 are provided on the surface of the fixing cylinder 3 , and each group of fixing holes 4 has four fixing holes, which are evenly distributed along the circumference of the fixing cylinder 3 .
[0017] The utility model is provided with two groups of upper and lower fixing holes 4 on the surface of the fixing tube 3, each group of fixing holes 4 has four fixing holes, which are evenly distributed along the circumference of the fixing tube 3, ensuring that the nuts 5 in the fixing holes 4 fix the probe.
[0018] This utility model prevents rock jams caused by uncontrolled rocks falling from the borehole during drilling tests. The specific operating principle is as follows: During use, a collection port 1 adapted to the borehole diameter is connected to a fixing tube 3, and rubber gaskets of varying thicknesses are used to secure the entire collection port 1 above the probe. When the probe begins operating, the collection port 1 enters the borehole along with the probe. If rocks fall from the borehole due to breakage, the collection port 1 collects them within the bell mouth, preventing jams and minimizing economic losses.
[0019] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.
Claims
1. A device for preventing a well logging probe from getting stuck, characterized by: A collecting port (1) and a fixing cylinder (3) are provided in sequence from top to bottom. The collecting port (1) is in a bell-mouth shape. A connecting port (2) is provided on the upper portion of the fixing cylinder (3). The smaller end of the bell-mouth well of the collecting port (1) is connected to the connecting port (2) by a thread. A plurality of fixing holes (4) are provided on the surface of the fixing cylinder (3), and nuts (5) are provided in the fixing holes (4).
2. The device for preventing a well logging probe from getting stuck according to claim 1, characterized in that: A rubber gasket is provided at the bottom of the fixing hole (4).
3. The device for preventing a well logging probe from getting stuck according to claim 1, characterized in that: The surface of the fixed cylinder (3) is provided with two groups of upper and lower fixing holes (4), each group of fixing holes (4) having four holes, which are evenly distributed along the circumference of the fixed cylinder (3).