CN110857622B - Alarm device for foreign matter in back dragging hole of directional drilling - Google Patents
Alarm device for foreign matter in back dragging hole of directional drilling Download PDFInfo
- Publication number
- CN110857622B CN110857622B CN201810937779.8A CN201810937779A CN110857622B CN 110857622 B CN110857622 B CN 110857622B CN 201810937779 A CN201810937779 A CN 201810937779A CN 110857622 B CN110857622 B CN 110857622B
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- monitoring terminal
- detector
- communication device
- signals
- hole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention provides a directional drilling and dragging hole foreign matter alarm device which comprises a front centralizer, a multifunctional detector, a middle shaft and a monitoring terminal, wherein the front centralizer is internally embedded with a miniature metal detector, the detected electromagnetic signals are converted into electric signals, the multifunctional detector is internally provided with an ultrasonic detector, a microphone and a gravity sensor, the ultrasonic detector transmits ultrasonic signals to the hole wall and converts received reflected wave signals into electric signals, the microphone collects sound signals around the multifunctional detector in real time and converts the sound signals into electric signals, the gravity sensor senses vibration conditions of the multifunctional detector in real time and converts the vibration into electric signals, and the communication device transmits the signals to the monitoring terminal to process and display data through the monitoring terminal. The directional drilling and dragging hole foreign matter alarm device comprehensively analyzes and identifies foreign matters threatening to the dragging operation in the hole, and provides reference basis for the next operation.
Description
Technical Field
The invention relates to the technical field of oilfield drilling, in particular to a directional drilling back-dragging channel foreign matter alarm device.
Background
In the process of directional drilling, some hard stones or other foreign matters are sometimes encountered, and sometimes the foreign matters cannot touch the drill bit, but can prevent back dragging; sometimes, the drill bit can slightly change direction and continuously move forward after striking the foreign matters, when the power of the drilling machine is high, the striking process is difficult to be found by ground operators, but in the pipeline dragging process, the corrosion-resistant layer is damaged due to the fact that the foreign matters are hard and light, and the pipeline is deformed and ball passing fails due to the fact that the foreign matters are heavy. In the chinese patent application with the application number CN201410838154.8, an apparatus for measuring directional drilling and a system and a method for measuring directional drilling and hole profile in the application are mentioned, which both belong to the detection of a hole in the drilling process, and because the diameter of a drill bit is smaller than the diameter of a back-pulled hole, sometimes foreign matters are not in the range of the hole of the drill bit, but in the range of the hole after reaming, thus preventing the back-pulling, and the apparatus for measuring directional drilling and the system for measuring directional drilling and hole profile cannot avoid the occurrence of the situation. For those high density objects or metal-containing products (such as reinforced cement piles) which are distributed outside the drilled holes and inside the back-towing holes and can pose a great threat to the back-towing operation of the pipeline, the early warning capability is not provided. Therefore, the invention discloses a novel directional drilling and dragging hole foreign matter alarm device, and solves the technical problems.
Disclosure of Invention
The invention aims to provide the directional drilling back-dragging hole channel foreign matter alarm device which improves the accuracy of foreign matter detection and judgment, avoids pipeline damage and saves construction period.
The aim of the invention can be achieved by the following technical measures: the directional drilling and dragging hole foreign matter alarm device comprises a front centralizer, a multifunctional detector, a center shaft and a monitoring terminal, wherein the front end of the center shaft is connected with a reamer, the rear end of the center shaft is connected with a drill rod, a communication device is arranged in the center shaft, the front centralizer is fixed on the center shaft, a miniature metal detector is embedded in the edge of the center shaft and connected with the communication device, detected electromagnetic signals are converted into electric signals to be transmitted to the communication device, the multifunctional detector is fixed on the center shaft, an ultrasonic detector, a microphone and a gravity sensor are built in the ultrasonic detector, the ultrasonic detector is connected to the communication device, ultrasonic signals are emitted to the hole wall, received reflected wave signals are converted into electric signals to be transmitted to the communication device, the microphone is connected to the communication device, sound signals around the multifunctional detector are collected in real time, the sound signals are converted into electric signals and are transmitted to the communication device, the gravity sensor is connected to the communication device, the vibration sensor senses the vibration condition of the multifunctional detector in real time, the vibration is converted into the electric signals to be transmitted to the communication device, the electric signals are connected to the communication device, the ultrasonic detector is connected to the communication device, ultrasonic detector transmits ultrasonic signals to the communication device to the hole and the communication device, and the monitoring terminal to the monitoring terminal, and the monitoring terminal is used for displaying data.
The warning device for foreign matters in the directional drilling back-dragging hole channel further comprises a rear centralizer, wherein the rear centralizer and the reamer have the same diameter, are cylindrical with conical bottom surfaces, are fixed on the center shaft, are positioned behind the multifunctional detector and in front of a drill rod, and are matched with the front centralizer to keep the position of the multifunctional detector on the center shaft line of the hole channel.
The central shaft adopts a hollow tube structure, the front centralizer, the multifunctional detector and the rear centralizer are sequentially fixed, the front centralizer is a cylinder with conical bottom surfaces, holes are formed in the tube wall of the central shaft at the joint part of the central shaft and the front centralizer and the multifunctional detector, and a cable and a signal wire of the communication device in the central shaft tube pass through the holes in the tube wall of the central shaft and are connected with the miniature metal detector arranged in the front centralizer and the ultrasonic detector, the microphone and the gravity sensor arranged in the multifunctional detector to supply power for the detectors.
The communication device is connected with the monitoring terminal on the ground in a wired or wireless communication mode.
The monitoring terminal processes the received electric signal containing the reflected wave information to generate an ultrasonic image, and the ultrasonic image is displayed on a display of the monitoring terminal.
The monitoring terminal restores the received electric signal containing the sound wave information into sound to be played for monitoring personnel to monitor.
The monitoring terminal carries out data processing on the electric signal containing the acoustic wave information to generate a time-amplitude acoustic wave curve, and the time-amplitude acoustic wave curve is displayed on a display of the monitoring terminal for further checking and analysis by monitoring staff.
The monitoring terminal carries out data processing on the electric signal containing vibration information to generate a time-vibration curve, and the time-vibration curve is displayed on a display of the monitoring terminal.
The monitoring terminal carries out data processing on the electric signal containing electromagnetic information, generates a time-intensity curve graph and displays the curve on a display of the monitoring terminal in real time.
When the intensity reaches a set threshold value, the monitoring terminal sends out an audible and visual alarm signal to remind monitoring personnel of paying attention.
According to the directional drilling back dragging hole channel foreign matter alarm device, the metal detector, the ultrasonic detector, the microphone and the gravity sensor are comprehensively used together, so that the accuracy of foreign matter detection and judgment is improved; through directly detecting to the pore after the reaming, this pore just is the pore that the pipeline was pulled back to the back, if detect that the foreign matter exists, confirm after the analysis and can cause the harm to the pipeline that pulls back, just can directly interrupt the operation, get into follow-up flow, also make the time limit for a project saved when avoiding the pipeline damage. The device has the following advantages:
1. the method is used for directly detecting the hole after reaming, and the uncertainty of the self-detection blind area of the drill hole detection system on the back hauling operation is eliminated.
2. The device can be hung behind a reamer and synchronously carried out with the reaming operation, and has small influence on the construction period.
3. The collected information is rich in variety, is favorable for identification and is convenient for decision making.
Drawings
FIG. 1 is a front view of one embodiment of a directional drill back to drag hole foreign matter alarm device of the present invention;
FIG. 2 is a left side view of an embodiment of the directional drilling back-dragging hole foreign matter alarm device of the present invention;
FIG. 3 is a top view of an embodiment of the directional drilling back-dragging hole foreign matter alarm device of the present invention.
Detailed Description
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.
As shown in fig. 1 to 3, the structure diagram of the directional drilling back-dragging hole foreign matter alarm device of the invention is shown. The directional drilling and dragging hole foreign matter alarm device consists of a front centralizer 2, a multifunctional detector 3, a center shaft 1, a rear centralizer 4 and a monitoring terminal 5.
The middle shaft 1 fixes the multifunctional detector 3, the front centralizer 2 and the rear centralizer 4 together. The front end is connected with the reamer, and the rear end is connected with the drill rod. Adopts a hollow pipe structure, and a communication device is arranged inside the hollow pipe structure. The communication device has a cable and a signal line. Holes are formed in the middle shaft wall of the joint part of the middle shaft 1 and the front centralizer 2 and the multifunctional detector 3, a cable and a signal wire of a communication device in the middle shaft 1 are connected with a miniature metal detector arranged in the front centralizer 2 and an ultrasonic detector, a microphone and a gravity sensor arranged in the multifunctional detector 3 through the holes in the middle shaft wall of the middle shaft 1 to supply power to the detectors, signals acquired by the detectors are collected and forwarded to a monitoring terminal 5 positioned on the ground through the communication device. The communication device can select two communication modes of wired or wireless according to the actual condition of a construction site. When a wired communication mode is adopted, the communication device is connected with a monitoring terminal 5 positioned on the ground through a cable and a signal wire, and the cable and the signal wire penetrate through the space in the pipe of the drill rod and the center shaft to connect each detector with the monitoring terminal 5; when the wireless communication mode is adopted, the communication device converts signals obtained by the detectors into wireless signals through the wireless signal transmitter, and the wireless signals are transmitted out and then received by the wireless signal receiver connected with the monitoring terminal 5 and transmitted to the monitoring terminal 5.
The front centralizer 2 and the reamer have the same diameter, two conical cylinders with the bottom surfaces are fixed on the center shaft 1, and the mounting position is positioned behind the reamer and in front of the multifunctional detector 3. The micro metal detector is embedded in the edge and is connected with a communication device in the center shaft 1, the acquired signals are transmitted to the monitoring terminal 5 through the communication device in the center shaft 1, the signals are processed into a time-intensity graph by the monitoring terminal 5, the time-intensity graph is displayed on a display of the monitoring terminal 5 in real time, and when the intensity reaches a set threshold value, the monitoring terminal 5 sends out an audible and visual alarm signal to remind monitoring personnel to pay attention.
The multifunctional detector 3 is internally provided with an ultrasonic detector, a microphone and a gravity sensor. The ultrasonic detector utilizes an ultrasonic imaging principle to emit ultrasonic signals to the hole wall, the received reflected wave signals are converted into electric signals, the electric signals are transmitted to the monitoring terminal 5 through the communication device in the center shaft 1, the electric signals are processed into ultrasonic images by the monitoring terminal 5, and the ultrasonic images are displayed on a display of the monitoring terminal 5. The microphone collects sound signals around the multifunctional detector 3 in real time, converts the sound signals into electric signals, transmits the signals to the monitoring terminal 5 through the communication device in the center shaft 1, and the monitoring terminal 5 restores the electric signals into sound to be played for monitoring by monitoring staff; at the same time, the sound signal is processed into a time-amplitude sound wave curve by the monitoring terminal 5, and the time-amplitude sound wave curve is displayed on a display of the monitoring terminal 5 for further viewing and analysis by monitoring personnel. The gravity sensor senses the vibration condition of the multifunctional detector in real time, transmits signals to the monitoring terminal 5 through the communication device in the center shaft 1, and is processed into a time-vibration curve by the monitoring terminal 5 to be displayed on a display of the monitoring terminal 5.
The rear centralizer 4 and the reamer have the same diameter, two conical cylinders with the bottom surfaces are fixed on the center shaft 1, and the mounting position is positioned behind the multifunctional detector 3 and in front of the drill rod. The rear centralizer 4 and the front centralizer 2 can be matched to keep the position of the multifunctional detector 3 on the central axis of the pore canal.
The monitoring terminal 5 is a signal receiving, information processing and real-time monitoring system arranged on the ground surface.
When the directional drilling back dragging hole foreign matter alarm device is operated, the directional drilling back dragging hole foreign matter alarm device is arranged behind the reamer and advances along with the reamer. The multifunctional detector is arranged behind the front centralizer, advances along with the reamer, and detects the back dragging pore canal by utilizing ultrasonic waves in the advancing process. The microphone is utilized to acquire sound information in the reaming process, and noise is filtered to monitor the operation condition of underground equipment and foreign matter impact event. And recording displacement information of the detector by utilizing a gravity sensor, and assisting in identifying a foreign matter impact event. The detection data are transmitted back to the monitoring terminal in real time by the communication device and are automatically analyzed to form an ultrasonic image, a sound wave form curve and a gravity sensing curve, when abnormality is found, an alarm is automatically sent out, the size and the density of the foreign matters are calculated according to the ultrasonic detection data, the combination fastening degree of the foreign matters and the surrounding is judged according to the dynamic characteristics of the foreign matters when the centralizer passes through, the influence of the foreign matters on the back dragging is comprehensively evaluated, further, the next measure is determined, the damage to the pipeline caused by the back dragging is avoided, and meanwhile, the unnecessary loss in construction period can be avoided.
The invention relates to a device for alarming foreign matters in a hole through directional drilling and dragging, which comprehensively utilizes a metal detector, an ultrasonic detector, a microphone and a gravity sensor to detect the hole after directional drilling and dragging (the metal detector is used for detecting the hole after directional drilling and dragging, whether metal matters exist or not is detected, an ultrasonic image of the hole is obtained by utilizing the ultrasonic detector, sound in an underground hole in a detection process is monitored by utilizing the microphone, an acoustic waveform curve is obtained, the displacement of the multifunctional detector is dynamically monitored by utilizing the gravity sensor), foreign matters threatening the dragging operation in the hole are comprehensively analyzed and identified, and a reference basis is provided for the next operation.
Claims (10)
1. The directional drilling and dragging hole foreign matter alarm device is characterized by comprising a front centralizer, a multifunctional detector, a center shaft and a monitoring terminal, wherein the front end of the center shaft is connected with a reamer, the rear end of the center shaft is connected with a drill rod, a communication device is arranged in the center shaft, the front centralizer is fixed on the center shaft, the edge of the front centralizer is embedded with a miniature metal detector, the miniature metal detector is connected with the communication device, detected electromagnetic signals are converted into electric signals and transmitted to the communication device, the multifunctional detector is fixed on the center shaft, an ultrasonic detector, a microphone and a gravity sensor are built in the multifunctional detector, the ultrasonic detector is connected to the communication device, ultrasonic signals are transmitted to a hole wall, received reflected wave signals are converted into electric signals and transmitted to the communication device, the microphone is connected to the communication device, sound signals around the multifunctional detector are collected in real time and are converted into electric signals and transmitted to the communication device, the gravity sensor is connected to the communication device, the vibration condition of the multifunctional detector is sensed in real time and is converted into electric signals and transmitted to the communication device, the communication device is connected to the communication device, the monitoring terminal and the monitoring terminal is used for processing data.
2. The apparatus of claim 1, further comprising a post-centralizer having a diameter equal to the reamer, the post-centralizer being two cylinders having conical bottoms and being fixed to the central shaft, the post-centralizer being positioned behind the multifunction probe and in front of the drill pipe to cooperate with the pre-centralizer to maintain the multifunction probe in position on the central axis of the hole.
3. The directional drilling and dragging hole foreign matter alarm device according to claim 2, characterized in that the central shaft adopts a hollow tube structure, the front centralizer, the multifunctional detector and the rear centralizer are sequentially fixed, the front centralizer is a cylinder with conical bottom surfaces, holes are formed in the tube wall of the central shaft at the joint part of the central shaft and the front centralizer and the multifunctional detector, and a cable and a signal wire of the communication device in the central shaft tube are connected with the miniature metal detector arranged in the front centralizer and the ultrasonic detector, the microphone and the gravity sensor arranged in the multifunctional detector through the holes in the tube wall of the central shaft to supply power for the detectors.
4. The warning device for foreign matter in a back-boring and pulling tunnel according to claim 1, wherein the communication device is connected to the monitoring terminal on the ground by two communication methods, wired or wireless.
5. The warning device for foreign matter in a back-drilled and dragged-through hole according to claim 1, wherein the monitoring terminal processes the received electric signal containing the reflected wave information to generate an ultrasonic image, and the ultrasonic image is displayed on a display of the monitoring terminal.
6. The warning device for foreign matter in a back-dragging hole of a directional drill according to claim 1, wherein the monitoring terminal restores the received electric signal containing acoustic wave information into sound to be played for monitoring by monitoring staff.
7. The warning device for foreign matter in a back-to-back hole of a directional drilling machine according to claim 1, wherein the monitoring terminal processes the electrical signal containing acoustic information to generate a time-amplitude acoustic curve, which is displayed on a display of the monitoring terminal for further viewing and analysis by a monitoring person.
8. The warning device for foreign matter in a back-drilled and dragged-through hole according to claim 1, wherein the monitoring terminal performs data processing on an electric signal containing vibration information to generate a time-vibration curve, and the time-vibration curve is displayed on a display of the monitoring terminal.
9. The warning device for foreign matter in a back-to-back hole of a directional drilling machine according to claim 1, wherein the monitoring terminal performs data processing on an electric signal containing electromagnetic information to generate a time-intensity graph, and the time-intensity graph is displayed on a display of the monitoring terminal in real time.
10. The warning device for foreign matter in a back-boring and pulling hole according to claim 9, wherein the monitoring terminal emits an audible and visual warning signal to alert a monitoring person when the intensity reaches a set threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937779.8A CN110857622B (en) | 2018-08-16 | 2018-08-16 | Alarm device for foreign matter in back dragging hole of directional drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937779.8A CN110857622B (en) | 2018-08-16 | 2018-08-16 | Alarm device for foreign matter in back dragging hole of directional drilling |
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| CN110857622A CN110857622A (en) | 2020-03-03 |
| CN110857622B true CN110857622B (en) | 2023-06-23 |
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