CN113586033A - Gas detection device for logging - Google Patents
Gas detection device for logging Download PDFInfo
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- CN113586033A CN113586033A CN202110896174.0A CN202110896174A CN113586033A CN 113586033 A CN113586033 A CN 113586033A CN 202110896174 A CN202110896174 A CN 202110896174A CN 113586033 A CN113586033 A CN 113586033A
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 238000005553 drilling Methods 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 7
- 210000003141 lower extremity Anatomy 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 4
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- 230000005611 electricity Effects 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 18
- 230000009545 invasion Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 132
- 238000000034 method Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
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- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B47/14—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 using acoustic waves
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Abstract
The invention provides a gas detection device for logging, which comprises a detector body, an operation key and a display screen which are embedded on the detector body, a gas pipeline joint fixed on the detector body, and a control module fixed in the detector body, wherein the operation key, the display screen and the control module are electrically connected, and the gas detection device further comprises an ultrasonic sensor, a gas pipeline, a chain controller, a protection device and an electrode plate. The invention relates to a gas detection device for logging, which is characterized in that when logging, the device is placed at a drilling fluid outlet, an ultrasonic sensor is started to emit a sound wave signal to the liquid level of the drilling fluid, the sound wave signal returns to the drilling fluid outlet when encountering the liquid level of the drilling fluid, the device receives an echo sound wave signal, the distance between the liquid level of the drilling fluid and a free end is calculated through the function, and a chain controller is controlled to move the free end of a gas circuit pipeline, so that the free end is just in contact with the liquid level of the drilling fluid, a gas sample in the drilling fluid is collected for detection, the invasion of a non-gas sample is avoided under the condition of ensuring the collection of the gas sample, and the logging efficiency is improved.
Description
Technical Field
The invention discloses a gas detection device for logging, and belongs to the technical field of gas detection devices.
Background
In the process of oil exploitation, the detection of formation fluid is an important means for identifying the abnormity of oil gas, the oil gas can be quickly identified and found by carrying out gas detection through an on-site logging method, meanwhile, the monitoring and early warning of toxic and harmful gases can be carried out, and non-hydrocarbon gas deposits can also be found.
Currently, there are two types of methods for gas detection in subterranean formations. The first is to place the gas detector at the drill bit directly, put it into the well bottom together with the drilling tool, and detect the gas in the stratum during the drilling process; the detection result obtained by the method has small distortion and good real-time property; however, due to the limitation of the operation environment of the detector, no practical product is available at present. The second method is that the drilling fluid returns from the well bottom, the gas carried in the drilling fluid is carried to the ground, the gas carried in the drilling fluid is separated from the ground through a gas separation device, and a gas detector is used for detection.
Take common pump-suction type gas detector as an example, current pump-suction type gas detector includes the detector body, is provided with air pump and gas circuit line connector on the detector body, and detachable is connected with the gas circuit pipeline on the gas circuit line connector. During utensil physical examination, connect the gas circuit pipeline joint department at the detector with gas separation device's export one end, open the built-in air pump of detector body this moment, wait to detect that gas inhales the detector body through the gas circuit pipeline, this internal detector probe that has still put of detector carries out gaseous detection.
However, the existing gas separation device is directly arranged in the returned drilling fluid, and the gas in the drilling fluid is separated out in a rotary stirring mode. Due to the fact that the flow change range of the returned drilling fluid is large, the drilling fluid volume processed by the gas separation device under different drilling fluid flows is large in change, and the accuracy of a gas detection result is affected. Despite the advent of floating gas separation devices, due to the limitations of the drilling fluid environment in which the gas separation device is located, with the adhesion of drilling fluid on the gas separation device, this results in a reduction in the floating effect and increases the labor intensity of the operator. And because the change of drilling fluid flow, current gas separation device easily leads to drilling fluid to get into gas detector, causes the damage of gas detector.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a gas detection device for logging, which is additionally provided with a control module, a protection device and a chain controller on the original pump-suction type gas detector, wherein the control module is used for mastering the position information of the free end of a gas line on the liquid level of drilling fluid, the protection device covers the end part of the gas line and is not polluted and corroded by the drilling fluid, and the chain controller is used for adjusting the position of the free end of the gas line on the liquid level of the drilling fluid, so that the gas detection working efficiency is improved, and the service life of the pump-suction type gas detector is ensured.
In order to achieve the above object, the present invention is achieved by the following technical solutions, including:
a gas detection device for logging comprises a detector body, an operation key and a display screen which are embedded on the detector body, a gas pipeline joint fixed on the detector body and a control module fixed in the detector body, wherein the operation key, the display screen and the control module are electrically connected,
the ultrasonic sensor protection device also comprises at least two ultrasonic sensors, a plurality of gas circuit pipelines, a chain controller and a protection device;
one of the ultrasonic sensors is fixed on the detector body and is communicated with the control module;
the starting end of the gas circuit pipeline is matched with the gas circuit pipeline joint, and the other end of the gas circuit pipeline is a free end and is coated with a rubber pipe;
the chain-shaped controller is fixed at the free end of the gas pipeline and in the rubber tube and is wirelessly connected with the control module, and the chain-shaped controller is used for receiving signals of the control module to control the gas pipeline to move away from the free end of the gas pipeline joint;
the protection device is fixedly connected to the outer side of the free end of the gas circuit pipeline, is in wireless connection with the control module and is used for coating the free end of the gas circuit pipeline and the rubber pipe;
and the other ultrasonic sensor is fixed on the end face of the protection device close to the starting end of the gas pipeline, the ultrasonic sensor is communicated with the control module, and the control module calculates the position of the free end of the gas pipeline away from the measured object and/or the detector body by calculating the difference of the distance between the two ultrasonic sensors.
Preferably, the chain controller comprises a plurality of chain links connected together by universal joints;
each chain link is electrically connected with the control module and is coded with a serial number, eight electromagnetic sheets are fixed on each chain link, the electromagnetic sheets on each chain link are connected with the control module through a control switch, the electromagnetic sheets on each chain link are marked with serial numbers clockwise, each chain link is fixedly connected with the gas circuit pipeline/rubber tube through a rigid connecting tube, and the control switch is arranged at one end of the rigid connecting tube, which is attached to the gas circuit pipeline;
the detector body is fixed with a radar sensor, the radar sensor is communicated with the control module, and the radar sensor is used for accurately detecting the free end of the gas circuit pipeline and the position of the rubber pipe.
Preferably, the chain controller is one fifth to one sixth of the length of the gas pipeline.
Preferably, the protection device comprises an outer shell fixedly connected with the gas pipeline and a group of baffle assemblies movably connected with the outer shell, and the number of the baffle assemblies is two to four;
the shell body is the cylindric structure and the inside cavity of having offered that do not have the end cover from top to bottom, the upper end and the gas circuit pipeline fixed connection of shell body, the cavity communicates with the bottom of shell body, the cavity internal fixation has driving motor, driving motor's quantity is the same with the quantity of baffle subassembly, driving motor passes through adjusting part and links to each other with the baffle subassembly, adjusting part's quantity is the same with the quantity of baffle subassembly, driving motor and control module wireless connection, driving motor drives the position that adjusting part adjusted the baffle subassembly, the baffle subassembly is used for covering the free end terminal surface of gas circuit pipeline.
Preferably, the adjusting assembly comprises a gear fixedly connected with the output end of the driving motor and a rack meshed with the gear, and the baffle plate assembly is fixedly connected with one end, far away from the gear, of the rack.
Preferably, the baffle assembly comprises a first movable plate fixedly connected with the rack and a second baffle hinged with the first movable plate through a torsion spring, the first movable plate slides in the cavity, and the second baffle is attached to the bottom end of the outer shell.
Preferably, the bottom of the outer shell is internally fixed with a ring of baffle ring, the inner diameter of the baffle ring is smaller than the outer diameter of the rubber tube, the lower edge of the baffle ring is flush with the lower edge of the inner wall of the outer shell, and the upper surface of the second baffle plate is attached to the lower edge of the baffle ring.
Preferably, the device also comprises a plurality of electrode plates; the electrode plate is fixed at the bottom end of the protection device and connected with the control module for detecting whether the protection device contacts a measured object.
Preferably, the gas pipeline, the protection device and the rubber tube are coated with waterproof coatings.
Preferably, the gas pipeline, the protection device and the rubber pipe are coated with an anti-corrosion coating.
The invention has the beneficial effects that:
(1) the invention relates to a gas detection device for logging, which is provided with at least two ultrasonic sensors, when logging, the detector body is firstly placed at the outlet of the drilling fluid, the ultrasonic sensor fixed on the detector body is started to emit a sound wave signal to the underground, the sound wave signal returns to the outlet of the drilling fluid when meeting an underground object to be measured, the detector body receives an echo sound wave signal and further calculates the distance between the liquid level of the drilling fluid and the wellhead, this function is used for detecting the distance of drilling fluid liquid level apart from the detector body, and what this ultrasonic sensor detected is the distance of drilling fluid liquid level apart from the detector body promptly, and first can avoid making the gas circuit pipeline make the removal in the liquid level change that responds to drilling fluid the very first time, avoids corroding, and second comes the drilling fluid liquid level that can change relatively dynamic to keep a distance reasonable relatively, improves the precision that gas detected.
(2) The invention relates to a gas detection device for logging, wherein a chain controller is fixed in a gas pipeline of the device, the chain controller is connected with a control module in a detector body and used for receiving a signal sent by the control module, the control module controls the movement direction of the chain controller, the free end of the gas pipeline and the movement direction of a rubber tube are further adjusted, the detection direction is finely adjusted, errors caused by single detection position are avoided, and the working efficiency is improved.
(3) The invention relates to a gas detection device for logging, wherein a chain controller is fixed in a gas pipeline of the device, the length of the chain controller is only one fifth to one sixth of the length of the gas pipeline, and the design can ensure that the free end of the gas pipeline can be controlled to move and can save the overall manufacturing cost of the device.
(4) The invention relates to a gas detection device for logging, wherein a rubber tube is sleeved at the free end of a gas pipeline of the device, and the device is provided with a protection device which wraps the free end of the gas pipeline to play a role in protection.
(5) The invention relates to a gas detection device for logging, wherein a protection device is arranged at the free end of a gas circuit pipeline of the device, and an electrode plate is fixed at the bottom end of the protection device: carry out the secondary and detect, if the condition that the electrode slice switches on appears, explain that the radar detects failure, need in time retrieve the gas circuit pipeline, avoid corroding or block up.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a gas detection device according to the present invention;
FIG. 2 is a schematic structural diagram of a protection device and a chain controller according to the present invention;
fig. 3 is a schematic structural diagram of the control module according to the present invention.
In the figure: the detector comprises a detector body 1, operation keys 2, a display screen 3, an air pipeline joint 4, an ultrasonic sensor 5, an air pipeline 6, a chain controller 7, a protective device 8, an electrode plate 9, a universal joint 10, a chain link 11, an outer shell 12, a baffle plate assembly 13, a cavity 14, a driving motor 15, an adjusting assembly 16, a gear 17, a rack 18, a first movable plate 19, a second baffle plate 20, a baffle ring 21, an electromagnetic plate 22, a control switch 23, a rigid connecting pipe 24, a radar sensor 25 and a rubber tube 26.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
As shown in fig. 1, a gas detection device for logging comprises a detector body 1, an operation button 2 and a display screen 3 which are embedded on the detector body 1, a gas pipeline joint 4 fixed on the detector body 1, at least two ultrasonic sensors 5, a control module fixed in the detector body 1, and a plurality of gas pipelines 6 detachably connected with the gas pipeline joint 4, wherein the end parts of the gas pipelines 6 can be mutually sleeved, the operation button 2 is electrically connected with the control module, and the display screen 3 is electrically connected with the control module; the ultrasonic sensor 5 is used for transmitting sound waves, receiving echo sound waves and calculating the distance between a measured object and the detector body 1; one of them ultrasonic sensor 5 fixes on detector body 1, this ultrasonic sensor 5 and control module communication, and control module is current PLC controller, and gas circuit pipeline 6's initiating terminal and 4 looks adaptations of gas circuit pipeline joint, and gas circuit pipeline 6's the other end definition is the free end for stretch into the drilling fluid export.
When the device works, the free end of the gas pipeline 6 is fixed on any device capable of entering deeply, the detector body 1 of the device is placed above the outlet of drilling fluid, the gas pipeline is controlled to descend, the ultrasonic sensor 5 fixed on the detector body 1 is started, the sound wave transmitting probe in the ultrasonic sensor 5 transmits sound wave signals to the underground, the sound wave signals meet the liquid level of the drilling fluid, echo sound wave signals of the sound wave signals return to the detector body 1 and are received by the ultrasonic sensor 5, the ultrasonic sensor 5 feeds back the signals to the control module, the control module calculates the distance between the liquid level of the drilling fluid and the detector body 1 according to a preset formula and then transmits the distance information to the display screen 3, at the moment, a worker can automatically adjust the distance extending into the well or automatically adjust the distance extending through a preset program to control the extending device, the distance of the gas pipeline from the liquid level of the drilling liquid is in a reasonable range, then the detector body 1 is started, the gas pump in the detector body 1 starts to work, gas at the free end of the gas pipeline 6 is sucked, and gas components in the detection well are detected.
Specifically carry out the gas detection in-process, the air pump with near the free end of gas circuit pipeline 6 the gas pump inhale detector body 1 in, dispose gas composition analysis appearance in the detector body 1, detect gas composition, gas is inhaled detector body 1 by the pump and begins to detect promptly, and the timely demonstration of data that detect is on display screen 3, suggestion staff condition in the pit.
Example 2
With reference to fig. 1 and 2, this embodiment is improved on the basis of embodiment 1, in which a rubber tube 26 is wrapped at the end of the free end of the gas pipeline 6, and a protection device 8 is added, and further, a plurality of electrode plates 9 may be added at the bottom of the protection device 8.
The protection device 8 is fixedly connected to the outer side of the free end of the gas pipeline 6, the protection device 8 is in wireless connection with the control module, and the protection device 8 is used for covering the free end of the gas pipeline 6 and the rubber tube 26, so that the free end of the gas pipeline 6 is prevented from directly contacting with a measured object, and a buffering effect is achieved;
the protection device 8 comprises an outer shell 12 fixedly connected with the gas pipeline 6 and a group of baffle assemblies 13 movably connected with the outer shell 12, wherein the number of the baffle assemblies 13 is two to four; the outer shell 12 is of a cylindrical structure without upper and lower end covers, a cavity 14 is formed in the outer shell 12, the upper end of the outer shell 12 is fixedly connected with the gas path pipeline 6, the cavity 14 is communicated with the bottom of the outer shell 12, a driving motor 15 is fixed in the cavity 14, the number of the driving motors 15 is the same as that of the baffle assemblies 13, the driving motors 15 are connected with the baffle assemblies 13 through adjusting assemblies 16, the number of the adjusting assemblies 16 is the same as that of the baffle assemblies 13, the driving motors 15 are wirelessly connected with the control module, the driving motors 15 receive information of the control module in a wireless mode, the driving motors 15 drive the adjusting assemblies 16 to adjust the positions of the baffle assemblies 13, and the baffle assemblies 13 are used for covering the free end faces of the gas path pipeline 6; the adjusting assembly 16 comprises a gear 17 fixedly connected with the output end of the driving motor 15 and a rack 18 meshed with the gear 17, and the baffle plate assembly 13 is fixedly connected with one end, far away from the gear 17, of the rack 18; the baffle assembly 13 includes a first movable plate 19 fixedly connected to the rack 18 and a second baffle 20 hinged to the first movable plate 19 through a torsion spring, the first movable plate 19 slides in the cavity 14, the first movable plate 19 is adapted to the shape of the outer casing 12, and the second baffle 20 is attached to the bottom end of the outer casing 12. All components of the gas pipeline 6, the protection device 8 and the rubber tube 26 are coated with a waterproof coating and an anti-corrosion coating.
The inner fixed ring 21 that keeps off of circle in the shell body 12 bottom, the internal diameter that keeps off the ring 21 is less than the external diameter of gas circuit pipeline 6, keeps off the lower limb of ring 21 and is parallel and level mutually with shell body 12 inner wall lower limb, and the upper surface of second baffle 20 is laminated with the lower limb of keeping off ring 21, and this structure guarantees first fly leaf 19 and second baffle 20 mutually perpendicular, and second baffle 20 can be fine covers the bottom of protection device 8. When not in use, the gas pipeline can be protected.
The electrode plate 9 is fixed at the bottom end of the protection device 8 and connected with the control module for detecting whether the protection device 8 contacts the liquid level or not, if the protection device 8 contacts the liquid level, the electrode plate is conducted, an alarm effect is achieved, and liquid level contact corrosion caused by radar damage is avoided.
Specifically, when the protection device 8 is opened, a signal is input to the control module through the operation key 2, the control module sends a signal to the driving motor 15, the driving motor 15 starts to work, the gear 17 and the driving motor are driven to rotate at the same speed, the gear 17 further drives the rack 18 meshed with the gear to move, the rack 18 drives the first movable plate 19 to slide up and down in the cavity 14, when the first movable plate 19 moves up, the second movable plate 20 is driven to move up, but because the second movable plate 20 is hinged to the first movable plate 19 through the torsion spring, and the second movable plate 20 is approximately perpendicular to the first movable plate 19, the free end of the second movable plate 20 can turn over downwards, and the protection device 8 is opened.
Example 3
With reference to fig. 1, 2 and 3, this embodiment is an improvement on embodiment 2, and a chain controller 7 is added in the gas pipeline 6.
The chain-shaped controller 7 is fixed in the gas pipeline 6 and is in wireless connection with the control module, the chain-shaped controller 7 receives information of the control module in a wireless mode, and the chain-shaped controller 7 is used for receiving signals of the control module to control the gas pipeline 6 to move away from the free end of the gas pipeline joint 4; the chain controller 7 comprises a plurality of chain links 11 connected together by universal joints 10; a serial number database is configured in the control module, each chain link 11 is electrically connected with the control module and is coded with a serial number, the serial number is stored in the serial number database, eight electromagnetic sheets 22 are fixed on each chain link 11, the electromagnetic sheets 22 on each chain link 11 are connected with the control module through a control switch 23, the electromagnetic sheets 22 on each chain link 11 are marked with serial numbers clockwise, the serial numbers are also stored in the serial number database, each chain link 11 is fixedly connected with an air pipeline 6/rubber pipe 26 through a rigid connecting pipe 24, the rigid connecting pipe 24 is of a hollow structure and aims to reduce the overall mass of the air pipeline 6, and the control switch 23 is arranged at one end, attached to the air pipeline 6, of the rigid connecting pipe 24; a radar sensor 25 is fixed on the detector body 1, the radar sensor 25 is communicated with the control module, and the radar sensor 25 is used for accurately detecting the positions of the free end of the gas pipeline 6 and the rubber pipe 26; the chain link 11 is fixedly connected with the gas pipeline 6, the length of the chain controller 7 is one fifth to one sixth of the length of the gas pipeline 6, and the chain controller 7 is fixed at one end, far away from the gas pipeline joint 4, in the gas pipeline 6.
Furthermore, another ultrasonic sensor 5 is fixed on the end face of the protection device 8 close to the starting end of the gas pipeline 6, the ultrasonic sensor 5 is communicated with the control module, and the control module calculates the position of the free end of the gas pipeline 6 away from the object to be measured and/or the detector body 1 by calculating the difference between the distances of the first ultrasonic sensor and the second ultrasonic sensor.
Further, for more accurate grasp of the spatial position of the gas circuit pipeline 6, a radar sensor 25 is fixed on the detector body 1, the radar sensor 25 is in communication with the control module, and the radar sensor 25 is used for accurately detecting the position of the free end of the gas circuit pipeline 6.
During operation, when gas in different directions needs to be detected, a worker controls the chain controller 7 in the gas pipeline 6 to move through the operation key 2, the distance between the free end of the gas pipeline 6 and the detector body 1 is continuously detected by the ultrasonic sensor 5 fixed on the protection device 8 in the process, and then the direction of the end part of the gas pipeline is adjusted, so that detection is realized.
The chain links 11 are cubes, chamfers in the shape of regular tetrahedrons are cut at each top corner of the cubes, an electromagnetic sheet 22 is attached to each chamfer, eight electromagnetic sheets 22 are fixed on each chain link 11, the chain links 11 are connected through universal joints 10, the free ends of the gas pipeline 6 can be driven by the chain links 11 to move in any direction, workers know the specific position and shape of the gas pipeline 6 according to radar sensors 25, the specific chain links 11 needing to move are controlled according to serial numbers of the chain links 11 recorded in the control module in advance, specifically, the electromagnetic sheets 22 on each chain link 11 are marked with corresponding numbers clockwise, the control module opens the electromagnetic sheets 22 on the corresponding chain links 11 according to a preset calculation formula, a control switch 23 fixed on a hard connecting pipe 24 is opened, the corresponding electromagnetic sheets 22 are powered on, attraction force is generated between the adjacent electromagnetic sheets 22, the position relation and the bending angle of the adjacent chain links 11 are changed, the shape and the angle of the gas circuit pipeline 6 are further changed, and a worker can control the chain controller 7 to move, so that the direction of the free end of the gas circuit pipeline 6 can be adjusted to detect.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a gas detection device for logging, includes detector body (1), operation button (2) and display screen (3) of gomphosis on detector body (1), fixes gas circuit pipeline joint (4) on detector body (1) and fixes the control module in detector body (1), and operation button (2), display screen (3) and control module electricity are connected, its characterized in that:
the ultrasonic monitoring system also comprises at least two ultrasonic sensors (5), a plurality of gas circuit pipelines (6), a chain controller (7) and a protection device (8);
one ultrasonic sensor (5) is fixed on the detector body (1), and the ultrasonic sensor (5) is communicated with the control module;
the starting end of the gas circuit pipeline (6) is matched with the gas circuit pipeline joint (4), and the other end of the gas circuit pipeline (6) is a free end and is coated with a rubber pipe (26);
the chain-shaped controller (7) is fixed at the free end of the gas pipeline (6) and in the rubber pipe (26) and is in wireless connection with the control module, and the chain-shaped controller (7) is used for receiving signals of the control module to control the gas pipeline (6) to move away from the free end of the gas pipeline joint (4);
the protection device (8) is fixedly connected to the outer side of the free end of the gas circuit pipeline (6), the protection device (8) is in wireless connection with the control module, and the protection device (8) is used for covering the free end of the gas circuit pipeline (6) and the rubber pipe (26);
and the other ultrasonic sensor (5) is fixed on the end face of the protection device (8) close to the starting end of the gas circuit pipeline (6), the ultrasonic sensor (5) is communicated with the control module, and the control module calculates the position of the free end of the gas circuit pipeline (6) away from the drilling fluid level and/or the detector body (1) by calculating the difference of the distance between the two ultrasonic sensors.
2. The gas detection apparatus for logging as recited in claim 1, wherein:
the chain controller (7) comprises a plurality of chain links (11) connected together by universal joints (10);
each chain link (11) is electrically connected with the control module and is coded with a serial number, eight electromagnetic sheets (22) are fixed on each chain link (11), the electromagnetic sheets (22) on each chain link (11) are connected with the control module through a control switch (23), the electromagnetic sheets (22) on each chain link (11) are marked with numbers clockwise, each chain link (11) is fixedly connected with the air path pipeline (6)/the rubber tube (26) through a rigid connecting pipe (24), and the control switch (23) is arranged at one end, attached to the air path pipeline (6), of the rigid connecting pipe (24);
be fixed with radar sensor (25) on detector body (1), radar sensor (25) and control module communication, radar sensor (25) are used for the position of the free end of accurate detection gas circuit pipeline (6) and rubber tube (26).
3. The gas detection apparatus for logging as recited in claim 2, wherein: the length of the chain controller (7) is one fifth to one sixth of the length of the gas pipeline (6).
4. The gas detection apparatus for logging as recited in claim 1, wherein:
the protection device (8) comprises an outer shell (12) fixedly connected with the gas circuit pipeline (6) and a group of baffle assemblies (13) movably connected with the outer shell (12), and the number of the baffle assemblies (13) is two to four;
outer casing (12) are for the cylindric structure of no upper and lower end cover and inside cavity (14) has been seted up, the upper end and gas circuit pipeline (6) fixed connection of outer casing (12), cavity (14) communicate with the bottom of outer casing (12), cavity (14) internal fixation has driving motor (15), the quantity of driving motor (15) is the same with the quantity of baffle subassembly (13), driving motor (15) link to each other with baffle subassembly (13) through adjusting part (16), the quantity of adjusting part (16) is the same with the quantity of baffle subassembly (13), driving motor (15) and control module wireless connection, driving motor (15) drive adjusting part (16) adjust the position of baffle subassembly (13), baffle subassembly (13) are used for covering the free end terminal surface of gas circuit pipeline (6).
5. The gas detection apparatus for logging of claim 4, wherein: the adjusting assembly (16) comprises a gear (17) fixedly connected with the output end of the driving motor (15) and a rack (18) meshed with the gear (17), and the baffle plate assembly (13) is fixedly connected with one end, far away from the gear (17), of the rack (18).
6. The gas detection apparatus for logging of claim 5, wherein: the baffle plate assembly (13) comprises a first movable plate (19) fixedly connected with the rack (18) and a second baffle plate (20) hinged with the first movable plate (19) through a torsion spring, the first movable plate (19) slides in the cavity (14), and the second baffle plate (20) is attached to the bottom end of the outer shell (12).
7. The gas detection apparatus for logging of claim 6, wherein: the inner fixed ring (21) of round is kept off to shell body (12) bottom, and the internal diameter that keeps off ring (21) is less than the external diameter of rubber tube (26), keeps off the lower limb of ring (21) and shell body (12) inner wall lower limb looks parallel and level, and the upper surface of second baffle (20) and the laminating of keeping off ring (21) lower limb.
8. The gas detection apparatus for logging of claim 7, wherein: also comprises a plurality of electrode plates (9); electrode slice (9) are fixed in protection device (8) bottom and are connected to each other with control module for whether detection protection device (8) contact the measured object.
9. The gas detection apparatus for logging of claim 8, wherein: and the gas circuit pipeline (6), the protection device (8) and the rubber pipe (26) are coated with waterproof coatings.
10. The gas detection apparatus for logging of claim 9, wherein: the gas circuit pipeline (6), the protection device (8) and the rubber pipe (26) are coated with anti-corrosion coatings.
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Cited By (1)
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