CN111456713A - Quick identification system for drilling tool joint position - Google Patents
Quick identification system for drilling tool joint position Download PDFInfo
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- CN111456713A CN111456713A CN202010367215.2A CN202010367215A CN111456713A CN 111456713 A CN111456713 A CN 111456713A CN 202010367215 A CN202010367215 A CN 202010367215A CN 111456713 A CN111456713 A CN 111456713A
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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
Abstract
The invention provides a rapid identification system for the position of a drill tool joint, which comprises a camera, a distance measurement sensor and a processor, wherein the camera is arranged on a drill table surface and can capture a drill tool in real time and transmit the captured image to the processor, and the drill tool comprises a plurality of drill rods and a drill tool joint for connecting two adjacent drill rods; the distance measuring sensor is arranged on the top drive, can measure the moving distance of the drilling tool in the vertical direction in real time and transmits the moving distance to the processor; the processor is respectively connected with the camera and the ranging sensor, the processor can compare the image captured by the camera with a drilling tool information database of the processor so as to identify the captured image, and can generate and display a drilling tool structure diagram in real time according to an identification result and a measured distance so as to determine the position of a drilling tool joint. The invention has the advantages that the invention can identify the drill tool joint and generate the drill tool structure diagram, so that the driller can visually and accurately judge the position of the drill tool joint, and realize quick shut-in under emergency, and the like.
Description
Technical Field
The invention belongs to the technical field of oil and gas field drilling devices, and particularly relates to a quick identification system for the position of a drilling tool joint.
Background
In petroleum drilling, the well needs to be closed immediately due to overflow, well kick and blowout, but when the well is closed, a driller needs to lift a drilling tool away from the bottom of the well and judge the position of a drilling tool joint, so that the drilling tool joint avoids a blowout preventer core to be closed, and the drilling tool joint is prevented from being positioned in the blowout preventer. The determination and operation of the drill joint position can make the driller spend at least 10-30 seconds, which seriously affects the timely execution of well control measures in emergency situations. Meanwhile, the risk of drill sticking can be increased by the aid of non-basis forced and rapid drill tripping, excessive pumping pressure is caused, and well control risk is further expanded. At present, the position of the joint of the drilling tool is judged by depending on experience of a driller, and the mode has low efficiency and can be different from person to person, thereby being not beneficial to the execution of measures in emergency.
The color of the existing drill tool joint is the same as that of the drill rod body, and after the existing drill tool joint is put into a well and is adhered with mud, the outline of the drill tool joint is more fuzzy when the drill tool is pulled out, and the difficulty of identifying instruments or equipment for the drill tool joint is further increased.
Disclosure of Invention
The present invention aims to address at least one of the above-mentioned deficiencies of the prior art. For example, it is an object of the present invention to provide a quick identification system that can visually indicate whether a tool joint is in a blowout preventer.
In order to achieve the above object, the present invention provides a system for rapidly identifying the position of a tool joint. The identification system can comprise a camera, a ranging sensor and a processor, wherein the camera is arranged on the surface of the drilling platform, can shoot a drilling tool in real time and transmit the shot image to the processor, and the drilling tool comprises a plurality of drill rods and a drilling tool joint for connecting two adjacent drill rods; the distance measuring sensor is arranged on the top drive, can measure the ascending or descending distance of the drilling tool in real time and transmits the measured distance to the processor; the processor is prestored with a drilling tool information database, the processor is respectively connected with the camera and the distance measuring sensor, the processor can compare the image captured by the camera with the drilling tool information database so as to identify the captured image, and can generate and display a drilling tool structure diagram in real time according to the identification result and the measured distance so as to determine the position of a drilling tool joint.
In an exemplary embodiment of the invention, the identification system may further comprise a specularly reflective optoelectronic switch disposed on the drill floor to enable identification of the drill collar.
In an exemplary embodiment of the invention, the tool joint may include a joint body and a reflective ring fixedly disposed on a surface of the joint body, the reflective ring being capable of reflecting light emitted from the mirror reflective optoelectronic switch.
In an exemplary embodiment of the present invention, the reflective ring may include an inner ring and an outer ring disposed on a surface of the inner ring, the inner ring is sleeved on the connector body, and the outer ring is a reflective plate of the optoelectronic switch.
In one exemplary embodiment of the invention, the specularly reflective optoelectronic switch can have an emitter capable of emitting light and a receiver capable of receiving light reflected from a reflective ring on the connector body.
In an exemplary embodiment of the invention, the specularly reflective optoelectronic switch may be symmetrically arranged with respect to the drilling tool with the camera.
In an exemplary embodiment of the invention, the ranging sensor may include a laser ranging sensor, a reflector is arranged on the top of the derrick or on the drilling platform surface, and the light emitted by the laser ranging sensor returns to the laser ranging sensor for ranging after reaching the reflector.
In an exemplary embodiment of the present invention, the drilling tool may further include a drill bit, a screw, and a drill collar, and the tool information database may include the type, inner diameter, outer diameter, and length of drill rods and tool joints, and the type, inner diameter, outer diameter, and length of each component constituting the drilling tool.
In an exemplary embodiment of the invention, the processor is capable of displaying a block diagram of the drilling tool in a range of 5m below the current wellhead blowout preventer to 5m above the rig floor.
In an exemplary embodiment of the invention, the tool configuration map may include tool length, tool joint type, and tool joint location.
Compared with the prior art, the beneficial effects of the invention can comprise at least one of the following:
(1) the drilling tool is captured by the camera so that the drilling tool can be identified by the processor, the ascending or descending distance of the drilling tool is measured by the laser ranging sensor, finally, the structure diagram of the drilling tool is drawn and displayed to drillers, and the drillers can determine whether to close the well immediately according to the position of the joint of the drilling tool identified by the drillers;
(2) when the drilling tool joint is in the blowout preventer group, a driller needs to perform a drilling-out operation, and visually sees the position of the drilling tool joint through the display equipment, so that the reaction time of the driller in the rapid drilling-out process is shortened;
(3) through setting up mirror reflection formula photoelectric switch, can utilize the position of the drilling tool joint of mirror reflection formula photoelectric switch discernment to compare with the position of the drilling tool joint of camera snapshot and verify, improve the accuracy of drilling tool joint discernment, also can ensure simultaneously under the condition that the camera damages, the system can continue to work.
Drawings
FIG. 1 illustrates a schematic diagram of a system for rapid tool joint location identification according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of the tool joint of FIG. 1;
FIG. 3 shows a cross-sectional view of FIG. 2;
FIG. 4 illustrates a schematic diagram of a system for rapid tool joint location identification according to an exemplary embodiment of the present invention.
The reference numerals are explained below:
the device comprises a blowout preventer 1, a drilling rig surface 2, a reflective photoelectric switch 3-mirror, a drilling tool joint 4, a drill rod 5, a top drive 6, a reflector 7, a distance measuring sensor 8, a camera 9, a processor 10, a joint body 4a and a reflective ring 4 b.
Detailed Description
Hereinafter, the quick drill collar position identification system of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
In one exemplary embodiment of the present invention, a system for rapid identification of drill collar position may include a camera, a ranging sensor, and a processor. The camera sets up on the rig floor, can snap in real time drilling tool and drilling tool joint and transmit the image of snapping to the treater. The distance measuring sensor is arranged on the top drive and can measure the ascending or descending distance of the drilling tool in real time and transmit the measured distance to the processor. The processor is prestored with a drilling tool information database, is respectively connected with the camera and the distance measuring sensor, can compare the image captured by the camera with the drilling tool information database so as to identify the captured image, and can generate and display a drilling tool structure diagram in real time according to the identification result and the measured distance so as to determine the position of a drilling tool joint. Specifically, the system for rapidly identifying the position of the drill joint mainly comprises a camera, a distance measuring sensor and a processor. The camera is responsible for capturing the drilling tool, the distance measuring sensor is responsible for measuring the moving distance (namely the ascending or descending distance) of the drilling tool in the vertical direction, the processor can process the image captured by the camera and compare the image with a drilling tool information database of the processor to identify the captured image, namely, whether the current drilling rod or the drilling tool joint passes through the capturing position, and the model, the inner diameter, the outer diameter, the length and the like corresponding to the drilling rod or the drilling tool joint are identified. The processor generates a drill structure diagram capable of displaying position information according to the recognition result and the distance measured by the distance measuring sensor. For example, the drilling tool may further include a drill bit, a screw, and a drill collar, and the tool information database may include the type, inner diameter, outer diameter, and length of the drill pipe and tool joints, and the type, inner diameter, outer diameter, and length of the components that make up the drilling tool.
The processor comparing the image captured by the camera with the drilling tool information database to identify the captured image may include: and comparing and identifying the snap-shot image at the current moment through image transformation, region segmentation, valued processing and characteristic value extraction. Specifically, the processor processes the image captured by the camera, extracts characteristic parameters (such as the outer diameter of the drill rod or the drill tool joint), compares the characteristic parameters with a self drill tool information database, and can identify the model of the drill rod or the drill tool joint, so as to obtain corresponding parameters such as the inner diameter and the length. That is, the processor can identify whether the image captured at the current moment is a drill rod or a drill tool joint, and obtain parameters such as the model, the inner diameter, the outer diameter and the length of the drill rod or the drill tool joint from the drill tool information database.
When drilling, the recognition system firstly carries out snapshot recognition ranging on the drilling tool according to the drilling sequence to generate a structure diagram of the drilling tool. At the current moment, the camera is used for capturing the moving drilling tool, the processor processes and identifies the moving drilling tool according to the current captured image, and the processor updates the structure diagram of the drilling tool entering the well in real time according to the identification result and the moving distance of the drilling tool joint in the vertical direction in the time period from the last capturing moment to the current capturing moment. The tool configuration map may include tool length, tool joint type, and tool joint location. The processor can display a block diagram of the drilling tool in a range of 5m below the current wellhead blowout preventer to 5m above the rig floor.
In the present embodiment, as shown in fig. 1, the quick identification system of the tool joint comprises a derrick, a top drive 6, a tool, a drill floor 2, a blowout preventer 1, a camera 9, a processor 10 and a ranging sensor 8. The derrick is fixed to be set up subaerial and be located directly over the well head, and 6 upper ends are driven on the top and are linked to each other with the derrick, and 6 lower extremes are driven on the top and are linked to each other with the drilling tool upper end and can drive the drilling tool rotation. The derrick is able to raise and lower the top drive 6 to trip and lower the drill. The blowout preventer 1 is fixedly arranged at a well head and can close the well head, the drilling platform surface 2 is fixedly arranged on the ground and is positioned right above the well head, and an opening for a drilling tool to pass through is arranged on the drilling platform surface 2. Here, the drilling tool may comprise a plurality of drill rods 5 and a tool joint 4 connecting between two adjacent drill rods 5, the drilling tool being arranged in the well through an opening in the drilling floor 2 and the blowout preventer 1. The camera 9 is fixedly arranged on the drilling platform surface 2 and can shoot the drilling tool. For example, the camera 9 may be an explosion-proof camera. The distance measuring sensor 8 is fixedly arranged on the top drive 6 and can measure the ascending or descending distance of the top drive 6 so as to obtain the ascending or descending distance of the drilling tool, namely the distance of the drilling tool going out of or into the well. For example, the distance measuring sensor 8 may include a laser distance measuring sensor, a reflector 7 may be disposed on the top of the derrick or the drilling platform 2, and light emitted by the laser distance measuring sensor returns to the laser distance measuring sensor to measure distance after reaching the reflector 7. However, the present invention is not limited thereto, and other types of sensors are possible as long as the distance of the top drive ascending and descending can be measured.
The processor 10 is connected with the camera 9 through a wire, and the processor 10 can perform image transformation, region segmentation, value processing and characteristic value extraction on the pictures captured by the camera 9 and compare the pictures with a database of the processor to display the structure diagram of the current drilling tool. The processor 10 has a tool information database that stores the model, outside diameter, inside diameter, and length parameters of the drill pipe 5 and tool joints 4. The processor 10 also has an application program capable of performing image transformation, region segmentation, quantization processing, and feature value extraction on the photograph captured by the camera 9. For example, the processor 10 may be a computer. The tool configuration map may include tool length, tool joint 4 type, and tool joint 4 location. The processor 10 can display a block diagram of the drilling tool in the range of 5m below the current wellhead blowout preventer to 5m above the rig floor. Specifically, the processor 10 can perform image transformation, region segmentation, quantization processing and feature value extraction on the pictures captured by the camera 9 to obtain feature parameters of the drill rod 5 and the drill tool joint 4, and compare the feature parameters with the drill tool parameters stored in the drill tool information database of the processor to identify whether the currently captured drill rod 5 or drill tool joint 4 is captured, so as to obtain the model, the inner diameter and the outer diameter of the drill rod 5 or drill tool joint 4. When the captured image is the tool joints 4, a tool structure diagram is generated by combining the distance between two adjacent tool joints 4 measured by the distance measuring sensor, namely the length of the drill rod 5, and the tool structure diagram is displayed to a driller through a display.
In the present embodiment, the drill collar 4 includes a collar body 4a and a reflective ring 4b, the reflective ring 4b is fixedly disposed on the surface of the collar body 4a, and the reflective ring 4b is capable of reflecting light. Specifically, as shown in fig. 2 and 3, the joint body 4a has an upper end portion connected to the lower end of the upper drill pipe, a lower end portion connected to the upper end of the lower drill pipe, and an axial through-hole through which drilling fluid passes, and the reflection ring 4b is fixedly provided on the outer surface of the joint body 4a between the upper end portion and the lower end portion. The reflective ring 4b is not located too close to the lower end to reduce the strength of the tool joint 4 body 1. The reflecting ring 4b can comprise an inner ring and an outer ring arranged on the surface of the inner ring, the inner ring is sleeved on the joint body 4a, and the outer ring is a photoelectric switch reflecting plate. That is to say, the reflective ring 4b is a circular ring with a rectangular cross section, the inner wall of the circular ring is fixedly connected with the outer wall of the connector body 4a, and the outer wall of the circular ring is provided with a photoelectric switch reflective plate so as to reflect the light emitted to the reflective ring 4 b. The inner ring may be welded to the joint body 4 a. However, the invention is not limited thereto, and the inner ring and the joint body may be fixed in other manners, such as a threaded connection or a reflective ring directly embedded in the joint body.
The diameter of the reflection ring 4b can be 8-20 cm, the height can be 5-10 cm, the roughness of the reflection ring 4b does not exceed 6.3um, and the thickness of the reflection ring 4b can be 1-3 mm. Here, the diameter of the reflection ring 4b may be an outer diameter or an inner diameter, and the height of the reflection ring 4b is a dimension in the axial direction of the reflection ring 4 b. The roughness of the reflection ring 4b should not be too high, and if the roughness of the reflection ring 4b is too high, more mud can be attached to the surface of the reflection ring 4b, so that the capability of the reflection ring 4b for reflecting light is reduced, and the probability of the drill tool joint 4 being identified is reduced. In addition, the color of the reflective ring 4b can be easily recognized to distinguish the drill joint 4 from the drill rod, for example, the color of the reflective ring 4b can be gold. The thickness of the light reflecting ring is not too thin or too thick, the too thin is not beneficial to light reflection, and the too thick can influence the strength of the drill joint 4.
In order that the reflective ring 4b arranged on the surface of the joint body 4a does not influence the outer diameter of the drill joint 4, the reflective ring 4b is embedded in the joint body 4a, and the outer diameter formed by the surrounding of the reflective ring 4b is equal to the outer diameter of the joint body 4 a. The reflection ring 4b can also be provided with a two-dimensional code for storing information of the drill rod 5 matched with the drilling tool joint 4. For example, the two-dimensional code may store information including the length, outside diameter, inside diameter, steel grade, weight, tensile strength, crushing strength, etc. of the drill pipe 5. The two-dimensional code is identified by the identification device, and the information can be obtained.
In yet another exemplary embodiment of the present invention, as shown in fig. 1, the system for rapidly identifying the drill collar position may further include a reflective mirror type photoelectric switch 3 on the drill floor 2, based on the above embodiment, wherein the reflective mirror type photoelectric switch 3 is disposed on the drill floor 2, and can identify the drill collar 4. The mirror reflection type photoelectric switch 3 is fixedly arranged on the drill floor 2, and the mirror reflection type photoelectric switch 3 can identify the drill tool joint 4 and transmit the identified signal of the drill tool joint 4 to the processor 10. Specifically, by arranging the mirror reflection type photoelectric switch 3 capable of identifying the drill tool joint 4, the position information of the drill tool joint 4 measured by the mirror reflection type photoelectric switch 3 can be compared with the image of the drill tool joint 4 captured by the camera 9 so as to verify the accuracy of analyzing and distinguishing the drill tool joint 4 by the image, meanwhile, the mirror reflection type photoelectric switch 3 is arranged to identify the position of the drill tool joint 4, and the mirror reflection type photoelectric switch 3 can also be used for continuously identifying the position of the drill tool joint 4 under the condition that the camera 9 is damaged.
In the present exemplary embodiment, the specularly reflective optoelectronic switch 3 may be arranged symmetrically with respect to the drill with the camera 9. When the mirror reflection type photoelectric switch 3 and the camera 9 are symmetrically arranged on the surface of the drilling rig relative to the drilling tool, the mutual interference between the camera 9 and the mirror reflection type photoelectric switch 3 can be reduced, and the accuracy of identifying the drilling tool joint 4 by the camera 9 and identifying the drilling tool joint 4 by the mirror reflection type photoelectric switch 3 is improved. Here, the mirror-reflective photoelectric switch 3 may have a transmitter capable of emitting light and a receiver capable of receiving light reflected by the reflective ring 4b on the joint body 4 a. In addition, the mirror reflection type photoelectric switch 3 can also identify two dimensions on the reflection ring 4b of the drill tool joint 4 to acquire drill rod information. Specifically, a scanner may be built in the mirror reflection type photoelectric switch 3, information such as the length, the outer diameter, the inner diameter, the steel grade, the weight, the tensile strength, the extrusion strength and the like of the drilling tool is acquired by scanning the two-dimensional code on the reflection ring 4b through the scanner of the mirror reflection type photoelectric switch 3, the acquired information is output to the processor, and the processor displays the information on the generated drilling tool structure diagram, so that a team leader and drillers can know the drilling tool information in real time, and the quick well shut-in under an emergency state is facilitated.
In the process of drilling a drilling tool into a well, firstly, images captured by the camera 9 are compared with characteristic values of various drilling tool joints 4 in a database, when the camera 9 captures the drilling tool joints 4, the processor 10 can identify the drilling tool joints 4, then, a descending distance of the top drive 6, namely a descending distance of the drilling tool, is measured by a laser ranging sensor on the top drive 6, the numerical value measured by the laser ranging sensor is recorded into the database as a length value of the section of drilling tool, and a drilling tool structure diagram capable of displaying the length of the drilling tool, the type of the drilling tool joints 4 and the positions of the drilling tool joints 4 is generated by utilizing the length value of the drilling tool and the characteristic values of the drilling tool joints 4. The drilling tool is in the working conditions of the drill lifting, the drill descending and the drilling is judged by the numerical value of the distance increase and decrease of the laser ranging sensor on the top drive 6, when the drilling is carried out, the numerical value of the laser ranging sensor is increased, when the drilling is carried out, the numerical value of the laser ranging sensor is decreased, when the numerical value of the laser ranging sensor is increased, the image identification information of the drilling tool joint 4 captured by the camera 9 is combined with the processor, the increased distance from one drilling tool joint 4 to the next drilling tool joint 4 is determined as the length of the drilling tool, when the numerical value of the laser ranging sensor is decreased, the image identification information of the drilling tool joint 4 captured by the camera 9 is combined with the processor 10, the distance from one drilling tool joint 4 to the next drilling tool joint 4 is determined as the length of the drilling tool, when the well blowout and the well blowout need to be shut down immediately, the drilling can clearly and accurately judge whether the drilling tool joint 4 is positioned in the blowout, and decide whether the well can be shut in immediately. A schematic of the configuration of the tool joint 4 within the blowout preventer stack may be as shown in fig. 1, when the driller needs to perform a tripping operation to remove the tool joint 4 from the blowout preventer. A schematic of the configuration of tool joint 4 not within the blowout preventer stack after tripping may be as shown in fig. 4.
The operation of the quick identification system of the drill tool joint position may include the steps of:
firstly, a database is established, and the outer diameter, the inner diameter and the length parameters of the drill bit, the drill tool joint 4, the screw, the drill collar, the weighted drill rod, the drill rod 5 and other drill tool forming units are recorded in the database.
Then, the camera 9 captures the drilling tool at the position of the drilling platform surface 2 to obtain the image of the drilling tool joint 4 at the position of the drilling platform surface 2, and the processor 10 transforms, divides the region, processes the value and extracts and identifies the drilling tool joint 4 according to the image captured by the camera 9. Here, the characteristic value extraction requires that the characteristic values of various drill joints 4 are determined in an algorithm and are recorded into a database, and then the characteristic values obtained by using the image captured by the camera 9 are compared to identify the drill joints 4.
Next, a drill configuration diagram is generated. In the process of drilling a drilling tool into a well, images captured by the camera 9 are compared with characteristic values of various drilling tool joints 4 in a database, when the camera 9 captures the drilling tool joints 4, the processor 10 can identify the drilling tool joints 4, then a descending or ascending distance of the top drive 6 is measured by using a laser ranging sensor on the top drive 6, a value measured by the laser ranging sensor is recorded into the database as a length value of the section of drilling tool entering the well, and a drilling tool structure diagram capable of displaying the length of the drilling tool, the type of the drilling tool joints 4 and the positions of the drilling tool joints 4 is generated by using the length value of the drilling tool entering the well and the characteristic values of the drilling tool joints 4.
And then, judging the drilling working condition and updating the structure diagram of the drilling tool in real time. At a certain moment, the working condition of the drilling tool is judged, namely the drilling tool is judged to be in the state of tripping (or weighing out the well), descending (or entering the well) or drilling. The judgment is carried out through the numerical value trends of the distance increase and the distance decrease of the laser ranging sensor on the top drive 6, when the drilling tool is in a down drilling mode or a drilling mode, the numerical value measured by the laser ranging sensor is increased, and when the drilling tool is in a drilling mode, the numerical value measured by the laser ranging sensor is decreased. When the numerical value of the laser ranging sensor is increased, the increased distance in the time period from one drill tool joint 4 to the next drill tool joint 4 is determined as the length of the drill tool by combining the image identification information of the drill tool joint 4 captured by the camera 9 by the processor 10; the distance from one tool joint 4 to the next tool joint 4 is determined as the tool length by the numerical reduction of the laser ranging sensor in combination with the image recognition information of the tool joint 4 captured by the camera 9 by the processor 10. The calculation formula of the length of the drilling tool in the current well is as follows:
P＝Pa+Pi-Po
wherein P is the length of the current drilling tool in the well; pa is the initial drilling tool length in the well; po is the length of the drilling tool out of the well; pi is the length of the tool entering the well.
Next, the drill is displayed and the drill map is updated. And (3) intercepting a structure diagram of the drilling tool within the range from 5m below the wellhead blowout preventer 1 to 5m above the drill floor 2, and displaying the structure diagram in front of the driller's face through a display device of the processor 10. Here, the real-time updating method of the drill structure diagram includes: when the drilling is started, the type and the length of a drilling tool which is out of the well are obtained through the position of the drilling tool joint 4 and the data of the database which are identified by the images, the drilling tool which is out of the well is removed in real time in a display device, and a structure diagram of the drilling tool which is in the range from 5m below a blowout preventer 1 of the current wellhead to 5m above a drilling platform surface 2 is updated and displayed; when the drilling tool is used for drilling or boring, the type and the length of a drilling tool entering a well are obtained through the position of the drilling tool joint 4 and database data acquired through image recognition, the drilling tool entering the well is removed in real time from a display device, and a structure diagram of the drilling tool in the range from 5m below a blowout preventer 1 of a wellhead to 5m above a drilling floor 2 is updated and displayed.
In summary, the beneficial effects of the invention can include at least one of the following:
(1) the drilling tool is captured in real time through the camera, so that a computer can compare the captured image of the camera with a database of the computer to identify a drilling tool joint, the moving distance of the drilling tool is measured through a laser ranging sensor, a structure diagram of the drilling tool is generated by combining the captured image and the detected image and displayed to a driller, and the driller can clearly and accurately judge whether the position of the drilling tool joint is in the blowout preventer or not according to the structure diagram of the drilling tool and decide whether the well can be closed immediately or not;
(2) when the drilling tool joint is in the blowout preventer group, drillers need to perform the drilling operation, and visually see the position of the drilling tool joint and whether to move out of the blowout preventer through the display equipment, so that the reaction time of the drillers in the rapid drilling process is shortened;
(3) through setting up mirror reflection formula photoelectric switch, can utilize mirror reflection formula photoelectric switch and camera to compare the verification to the position of drill tool joint, improve the accuracy of drill tool joint discernment, also can continue to work under the condition that the camera damaged simultaneously.
Although the present invention has been described above in connection with the exemplary embodiments and the accompanying drawings, it will be apparent to those of ordinary skill in the art that various modifications may be made to the above-described embodiments without departing from the spirit and scope of the claims.
Claims (10)
1. A system for rapid identification of drill tool joint location, comprising a camera, a ranging sensor and a processor, wherein,
the camera is arranged on the drilling platform surface, can shoot a drilling tool in real time and transmit the shot image to the processor, and the drilling tool comprises a plurality of drilling rods and a drilling tool joint for connecting two adjacent drilling rods;
the distance measuring sensor is arranged on the top drive, can measure the ascending or descending distance of the drilling tool in real time and transmits the measured distance to the processor;
the processor is prestored with a drilling tool information database, the processor is respectively connected with the camera and the distance measuring sensor, the processor can compare the image captured by the camera with the drilling tool information database so as to identify the captured image, and can generate and display a drilling tool structure diagram in real time according to the identification result and the measured distance so as to determine the position of a drilling tool joint.
2. The system for rapid identification of drill collar position of claim 1, further comprising a specularly reflective photoelectric switch disposed on the drill floor to enable identification of the drill collar.
3. The system for rapid identification of drill collar position of claim 2, wherein the drill collar comprises a collar body and a reflective ring, the reflective ring is fixedly disposed on a surface of the collar body, and the reflective ring is capable of reflecting light emitted from the mirror reflective photoelectric switch.
4. The system for rapidly identifying the position of a drill tool joint as recited in claim 3, wherein the reflective ring comprises an inner ring and an outer ring disposed on the surface of the inner ring, the inner ring is sleeved on the joint body, and the outer ring is a reflective plate of the photoelectric switch.
5. The system for rapid identification of the location of a drill collar of claim 2, wherein the mirrored optoelectronic switch has a transmitter capable of emitting light and a receiver capable of receiving light reflected from a reflective ring on the collar body.
6. The system for rapid identification of drill collar position of claim 2, wherein the mirrored optoelectronic switch and camera are symmetrically disposed with respect to the drill.
7. The system of claim 1, wherein the distance measuring sensor comprises a laser distance measuring sensor, a reflector is arranged on the top of the derrick or on the drilling platform surface, and the light emitted by the laser distance measuring sensor returns to the laser distance measuring sensor to measure the distance after reaching the reflector.
8. The system for rapid identification of the location of a tool joint as recited in claim 1 wherein the tool further comprises a drill bit, a threaded rod, and a drill collar, and wherein the tool information database comprises the model, inner diameter, outer diameter, and length of the drill pipe and tool joint, and the model, inner diameter, outer diameter, and length of the components that make up the tool.
9. The system for rapid identification of tool joint location of claim 1, wherein the processor is capable of displaying a configuration map of the tool in a range of 5m below a current wellhead blowout preventer to 5m above a rig floor.
10. The system for rapid identification of tool joint location of claim 1 or 9, wherein the tool configuration map comprises tool length, tool joint type and tool joint location.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010367215.2A CN111456713A (en) | 2020-04-30 | 2020-04-30 | Quick identification system for drilling tool joint position |
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| CN202010367215.2A CN111456713A (en) | 2020-04-30 | 2020-04-30 | Quick identification system for drilling tool joint position |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414288A (en) * | 2020-10-13 | 2021-02-26 | 四川宏华电气有限责任公司 | Measuring device and method for judging relative height of drill rod joint |
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2020
- 2020-04-30 CN CN202010367215.2A patent/CN111456713A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414288A (en) * | 2020-10-13 | 2021-02-26 | 四川宏华电气有限责任公司 | Measuring device and method for judging relative height of drill rod joint |
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