CN204203167U - Drilling tool damage wellhead detecting device - Google Patents
Drilling tool damage wellhead detecting device Download PDFInfo
- Publication number
- CN204203167U CN204203167U CN201420538315.7U CN201420538315U CN204203167U CN 204203167 U CN204203167 U CN 204203167U CN 201420538315 U CN201420538315 U CN 201420538315U CN 204203167 U CN204203167 U CN 204203167U
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- drilling tool
- detecting device
- slide bar
- described slide
- tool damage
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Abstract
The utility model provides a kind of drilling tool damage wellhead detecting device, and comprising: open-and-close mechanism, it has set collar, and the both sides of described set collar are connected with two folding semi-rings opening or closing; Multiple backup mechanism, it is evenly distributed on described set collar and described two folding semi-rings, and described backup mechanism has slide bar, described slide bar is connected with expandable the sensor box holding sensor.Drilling tool of the present utility model damage wellhead detecting device, realizes detecting to the tool joint screw thread of engagement when can realize not shackle, can find the situation that the defect of drilling tool thread root and stress are concentrated, its simple operation, reliable.
Description
Technical field
The utility model has about a kind of drilling tool damage wellhead detecting device, especially has about the drilling tool damage wellhead detecting device in a kind of field of non destructive testing.
Background technology
At present, a kind of main manifestations of drilling tool failure is at connecting thread position rupture failure.The fracture crack of male connection often occurs in the root counting second or the 3rd spiral shell button from shoulder.External thread position becomes weak link that drilling tool easily occurs the to destroy stress concentration effect because of its geometry and thread root, make it easily to germinate fatigue crack under alternating compound stress effect, and expanding under pulsating stress and corrosive medium effect, until fracture.
Fracture crack for tool joint internal thread often occurs in the spiral shell buckle at last engagement position, its stress concentration effect comes from after drilling tool internal and external threads connects, suddenly become from inside and outside two thread segment at external thread small end end sectional area and only have internal thread cross section, generation stress is concentrated herein, become the weak link of fatigue break, make it easily to germinate fatigue crack under alternating compound stress effect, this part internal thread is exposed in mud simultaneously, the eddy current that internal thread root is subject to mud impacts and corrosion, the sharp-pointed otch of easy formation, intensification stress is concentrated and is destroyed, crack Propagation under pulsating stress and corrosive medium double action is until fracture.
For the make-up of string of well head, maximum pulling force and moment of torsion is subject at the tool joint screw thread at well head position, single drilling tool thread for the routine when making a trip detects, mainly after the shackle of tool joint screw thread, tool joint internal and external screw thread is detected respectively, need internal and external threads pick-up unit each a set of.Which not only adds checkout equipment, detect operation and the difficulty of Data Management Analysis, had a strong impact on well head simultaneously and to have made a trip speed, very large impact is caused on oil well production.
Existing conventional Dynamic Non-Destruction Measurement means diagnose tool joint screw thread position stress to concentrate extremely in early days and micro-crack aspect has the following disadvantages: the good measured surface contact conditions needed for (1) ultrasound examination and couplant condition are difficult at screw thread position realize, and cause Detection results very undesirable and the detection of inapplicable well head not shackle drilling tool thread; (2) magnetic leakage detection technology needs detection probe and measured surface close contact, can not realize for the detection in well head screw thread not shackle situation; (3) in existing nondestructive stress measurement detection method, the penetration depth of x-ray diffractive technology only has tens microns, be difficult to touch thread root, magnetosonic transmitting, Barkhausen noise and magnetic survey stress mornitoring method all need electric magnetization coil, drive coil and detection probe unitized construction bigger than normal, the stress state of reducing point and thread root cannot be differentiated, be difficult to obtain application in thread measurement.Existingly to facts have proved, existing nondestructive testing technique, as eddy current, ultrasonic, X ray etc., for detecting, the gross imperfection occurred is comparatively effective, requires that the detection in not shackle situation can not realize for well head thread measurement.
Therefore, be necessary to provide a kind of new drilling tool to damage wellhead detecting device, overcome above-mentioned defect.
Utility model content
The purpose of this utility model is to provide a kind of drilling tool damage wellhead detecting device, it realizes detecting to the tool joint screw thread of engagement when can realize not shackle, the situation that the defect of drilling tool thread root and stress are concentrated can be found, its simple operation, reliable.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of drilling tool to damage wellhead detecting device, and described drilling tool damage wellhead detecting device comprises:
Open-and-close mechanism, it has set collar, and the both sides of described set collar are connected with two folding semi-rings opening or closing;
Multiple backup mechanism, it is evenly distributed on described set collar and described two folding semi-rings, and described backup mechanism has slide bar, described slide bar is connected with expandable the sensor box holding sensor.
In a preferred embodiment, described slide bar axially movably can be connected with slide, the two ends of described sensor box are connected with up-bow reed and lower bow reed, described up-bow reed is connected with described slide, described lower bow reed is connected to the bottom of described slide bar, according to described slide moving back and forth on described slide bar, described sensor box away from or arrange near described slide bar.
In a preferred embodiment, described slide bar is arranged with linear bearing, described slide is set on described linear bearing, and described up-bow Spring clip is located between described linear bearing and described slide.
In a preferred embodiment, the upper end of described slide bar is connected with setting nut, is folded with Compress Spring between described setting nut and described slide, and described Compress Spring is set on described slide bar.
In a preferred embodiment, the outside of described set collar is connected with guide pole, described guide pole is connected with slide block movably, the both sides of described slide block are connected to connecting rod, described connecting rod is connected with described folding semi-ring, according to described slide block moving axially on described guide pole, two described folding semi-rings are connected to the both sides of described set collar opening or closing.
In a preferred embodiment, described guide pole is arranged with linear bearing, described slide block set is located on described linear bearing.
In a preferred embodiment, described guide pole offers chute, described slide block is connected with locking pin, described slide block is arranged in described chute movably by described locking pin.
In a preferred embodiment, described sensor is metal magnetic memory test sensor.
In a preferred embodiment, the outside of described set collar is connected with fixed head, and described fixed head is provided with vasculum, and described sensor is electrically connected with described vasculum by wire.
In a preferred embodiment, the lower end of described fixed head is connected with scroll wheel.
Feature and the advantage of drilling tool damage wellhead detecting device of the present utility model are: this drilling tool damage wellhead detecting device adopts three body retractable structures of set collar and two folding semi-rings realize opening of open-and-close mechanism and close, its opening angle is large, time closed and drilling tool or body not easily produce interference, simple to operation.This drilling tool damage wellhead detecting device is fixed on well head, in the process made a trip, also namely when not shackle, tool joint screw thread, body damage and stress are concentrated and carries out real time on-line monitoring, early diagnosis for tool joint screw thread and body detects and provides premise, for the grading of drilling tool provides foundation, avoids drilling tool thread to rupture and causes catastrophic accident to occur, and do not affect well head and to make a trip speed, detection efficiency is high; In addition, multiple backup mechanism along set collar and two folding semi-rings uniform, the all-round detection to drilling tool or body can be realized, and the duty of each backup mechanism is separate; Have again, the sensor box of backup mechanism can realize reducing and detect, this sensor box can adjust according to the diameter of drilling tool or body, guarantee that drilling tool damage wellhead detecting device can not be hampered at tool joint position, and all can be close to drilling tool outer wall at this sensor box of any position, the lift-off value realizing sensor is constant, and it has larger reducing scope, the unexpected change overcome due to tool joint position caliber is large, on the impact of testing result.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the stereographic map of drilling tool of the present utility model damage wellhead detecting device.
Fig. 2 is the stereographic map of the open-and-close mechanism closure state of drilling tool of the present utility model damage wellhead detecting device.
Fig. 3 is the side view of the backup mechanism of drilling tool of the present utility model damage wellhead detecting device.
Fig. 4 is the schematic diagram that the guide pole of drilling tool of the present utility model damage wellhead detecting device coordinates with slide block.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-3, the utility model provides a kind of drilling tool to damage wellhead detecting device, and it comprises open-and-close mechanism 1 and multiple backup mechanism 2, and wherein: open-and-close mechanism 1 has set collar 11, the both sides of described set collar 11 are connected with two folding semi-rings 12 opening or closing; Multiple backup mechanism 2 is evenly distributed on described set collar 11 and described two folding semi-rings 12, and described backup mechanism 2 has slide bar 21, described slide bar 21 is connected with expandable the sensor box 22 holding sensor.
Specifically, the set collar 11 of open-and-close mechanism 1 is 1/3rd circular ring structures, as shown in Figure 2, be connected to two folding semi-rings 12 of set collar 11 both sides closed after, the open-and-close mechanism 1 of set collar 11 and two folding semi-ring 12 compositions forms an annular, and it is for surrounding the drilling tool or body 3 that are positioned at well head.
Multiple backup mechanism 2 is evenly distributed on set collar 11 and two folding semi-rings 12, each backup mechanism 2 has slide bar 21, set collar 11 and folding semi-ring 12 evenly offer multiple vertical through hole respectively, slide bar 21 is located in this vertical through hole, in the utility model, as shown in Figure 3, the middle part of slide bar 21 is provided with concave part 211, when slide bar 21 is located in vertical through hole, to penetrate from the outside of set collar 11 or folding semi-ring 12 those vertical through holes by multiple screw 4 and contact in the concave part 211 of slide bar 21, to realize being fixedly connected with slide bar 21, backup mechanism 2 also has the sensor box 22 of splendid attire sensor, this sensor box 22 is positioned at the inner side of set collar 11 and two folding semi-rings 12, be connected on slide bar 21 this sensor box 22 expandable, also namely sensor box 22 can away from or arrange near slide bar 21, when this sensor box 22 moves away from slide bar 21, its moving direction points to the center of the set collar 11 of open-and-close mechanism 1 and the annulus of two folding semi-ring 12 compositions.This sensor box 22, in strip, is provided with groove for encapsulated sensor in it.
When this drilling tool damage wellhead detecting device work, shown in Fig. 1,2, first, relative for two folding semi-rings 12 set collar 11 is opened, then this drilling tool damage wellhead detecting device is placed on well head, and ensure that the annulus of set collar 11 and two folding semi-ring 12 compositions is concentric with well head, now the drilling tool of well head or body 3 are positioned in the middle of set collar 11 and two folding semi-rings 12, multiple sensor boxes 22 of multiple backup mechanism 2 also move to the direction near drilling tool or body 3, to hold drilling tool or body 3 tightly by closed two folding semi-rings 12.Now, carry out normal tripping operation, the damage and stress that gather drilling tool structure threaded portion and whole body region are concentrated situation by the sensor in sensor box 22, and then realizing early diagnosis to drilling tool damage and prediction by the analysis of stress situation, it has larger engineering and practical application meaning to what avoid serious accident.
Drilling tool damage wellhead detecting device of the present utility model, three body retractable structures of set collar 11 and two folding semi-rings 12 are adopted to realize opening of open-and-close mechanism 1 and close, its opening angle is large, time closed and drilling tool or body 3 not easily produce interference, simple to operation.This drilling tool damage wellhead detecting device is fixed on well head, in the process made a trip, also namely when not shackle, tool joint screw thread, body damage and stress are concentrated and carries out real time on-line monitoring, early diagnosis for tool joint screw thread and body detects and provides premise, for the grading of drilling tool provides foundation, avoids drilling tool thread to rupture and causes catastrophic accident to occur, and do not affect well head and to make a trip speed, detection efficiency is high; In addition, multiple backup mechanism 2 along set collar 11 and two folding semi-rings 12 uniform, the all-round detection to drilling tool or body 3 can be realized, and the duty of each backup mechanism 2 is separate; Have again, the sensor box 22 of backup mechanism 2 can realize reducing and detect, this sensor box 22 can adjust according to the diameter of drilling tool or body 3, guarantee that drilling tool damage wellhead detecting device can not be hampered at tool joint position, and this sensor box 22 all can be close to drilling tool outer wall at any position, the lift-off value realizing sensor is constant, and it has larger reducing scope, the unexpected change overcome due to tool joint position caliber is large, on the impact of testing result.
According to an embodiment of the present utility model, shown in Fig. 3, described slide bar 21 can axially movably be connected with slide 212, the two ends of described sensor box 22 are connected with up-bow reed 221 and lower bow reed 222, described up-bow reed 221 is connected with described slide 212, described lower bow reed 222 is connected to the bottom of described slide bar 21, according to described slide 212 moving back and forth on described slide bar 21, described sensor box 22 away from or arrange near described slide bar 21.
Specifically, slide bar 21 is arranged with linear bearing 213, slide 212 to be set on linear bearing 213 and to be connected with linear bearing 213 by bolt 10, thus slide 212 can move back and forth swimmingly on slide bar 21; The upper end of sensor box 22 is connected with up-bow reed 221, one end of this up-bow reed 221 is folded between linear bearing 213 and slide 212, the lower end of sensor box 22 is connected with lower bow reed 222, and one end of this lower bow reed 222 is fixedly connected on the bottom of slide bar 21.
Further, the upper end of described slide bar 21 is connected with setting nut 214, is folded with Compress Spring 215 between described setting nut 214 and described slide 212, and described Compress Spring 215 is set on described slide bar 21.
By rotating adjusting nut 214, this setting nut 214 can make Compress Spring 215 compress and promote slide 212 to move down along slide bar 21, now up-bow reed 221 outwards arches upward, sensor box 22 is driven the round Ring current distribution formed to set collar 11 and two folding semi-rings 12 and moves, till on the outer wall being resisted against drilling tool or body 3 until sensor box 22.
The backup form that this backup mechanism 2 adopts up-bow reed 221, lower bow reed 222 dual with Compress Spring 215, and the duty of each backup mechanism 2 is independent, can ensure that all the sensors box 22 fully contacts with drilling tool or body 3 outer wall.
According to an embodiment of the present utility model, the outside of described set collar 11 is connected with guide pole 111, described guide pole 111 is connected with slide block 112 movably, the both sides of described slide block 112 are connected to connecting rod 113, described connecting rod 113 is connected with described folding semi-ring 12, according to described slide block 112 moving axially on described guide pole 111, two described folding semi-rings 12 are connected to the both sides of described set collar 11 opening or closing.
Specifically, as shown in Figure 4, guide pole 111 is arranged with linear bearing 114, slide block 112 to be set on linear bearing 114 and to be connected with linear bearing 114 by bolt, thus slide block 112 can move back and forth swimmingly on guide pole 111; Further, in the utility model, guide pole 111 offers chute 115, slide block 112 is connected with locking pin 116, slide block 112 is arranged in chute 115 by locking pin 116 movably, locking pin 116 on rotary slider 112 can make to conflict bottom locking pin 116 lower surface and chute 115, realizes slide block 112 and is locked at object on guide pole 111.Simultaneously conflict in locking pin 116 lower surface and chute 115 bottom surface, can limit the rotation of slide block 112 on guide pole 111 and the distance moved axially, and the distance decision that this moves axially can the maximum and minimum folding angle of open-and-close mechanism 1.
The both sides of slide block 112 are hinged with two connecting rods, 113, two folding semi-rings 12 and are connected to fixed pin 121 near the outside of set collar 11, the other end of two connecting rods 113 and two fixed pins 121 hinged.
When two folding semi-rings 12 opened by needs, moved to the direction away from set collar 11 by the chute 115 of slide block 112 along guide pole 111, now, slide block 112 drives the connecting rod 113 of its both sides, and then drive two folding semi-rings 12, realize the object opening open-and-close mechanism 1.
When closed two the folding semi-rings 12 of needs, moved to the direction near set collar 11 by the chute 115 of slide block 112 along guide pole 111, slide block 112 drives the connecting rod 113 of its both sides, and then drives two folding semi-rings 12, realizes the object of closed open-and-close mechanism 1.
According to an embodiment of the present utility model, described sensor is metal magnetic memory test sensor.This metal magnetic memory sensor has the powerful detectability penetrating wall thickness, the ultimate principle of its detection technique is: at fault location, the micro-crack that ferromagnetic metal workpiece produces due to tired and creep can occur that stress is concentrated, because ferromagnetic metal workpiece exists magneto-mechanical effect, therefore Distribution of Magnetic Field on its surface and workpiece stress load have certain corresponding relation, therefore the Distribution of Magnetic Field situation by detecting surface of the work is diagnosed the defect of workpiece and area of stress concentration indirectly, metal magnetic memory sensor has larger sensitivity simultaneously, the detection that tool joint outer wall realizes engaging drilling tool thread position can be penetrated when well head drilling tool thread is engaged, solid foundation is provided for developing a kind of drilling tool based on Metal magnetic memory damage wellhead detecting device.Certainly, the sensor in the utility model is also not limited to above-mentioned metal magnetic memory test sensor, adopts the sensor of other type also passable, such as Hall element, magnetoresistive transducer or magnetic resistance square sensor, and this is not restricted.
According to an embodiment of the present utility model, the outside of described set collar 11 is connected with fixed head 5, and described fixed head 5 is provided with vasculum 51, and described sensor is electrically connected with described vasculum 51 by wire.Fixed head 5 is connected to the outside of set collar 11 by many connecting links 52; Be provided with the electronic equipment such as data acquisition unit and wireless transport module in vasculum 51, the data that sensor collects pass to host computer by wireless transport module, can realize display directly perceived to data and storage by host computer.The utility model adopts Wireless Data Transmission, faster and more convenient operation.
Further, the lower end of described fixed head 5 is connected with scroll wheel 53.Specifically, be connected with a transverse axis 55 in the lower end of fixed head 5 by two bearing seats 54, the two ends of transverse axis 55 are connected to a scroll wheel 53, the setting of scroll wheel 53, and drilling tool can be facilitated to damage the transport of wellhead detecting device.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (10)
1. a drilling tool damage wellhead detecting device, is characterized in that, described drilling tool damage wellhead detecting device comprises:
Open-and-close mechanism, it has set collar, and the both sides of described set collar are connected with two folding semi-rings opening or closing;
Multiple backup mechanism, it is evenly distributed on described set collar and described two folding semi-rings, and described backup mechanism has slide bar, described slide bar is connected with expandable the sensor box holding sensor.
2. drilling tool damage wellhead detecting device as claimed in claim 1, it is characterized in that, described slide bar axially movably can be connected with slide, the two ends of described sensor box are connected with up-bow reed and lower bow reed, described up-bow reed is connected with described slide, described lower bow reed is connected to the bottom of described slide bar, according to described slide moving back and forth on described slide bar, described sensor box away from or arrange near described slide bar.
3. drilling tool damage wellhead detecting device as claimed in claim 2, it is characterized in that, described slide bar is arranged with linear bearing, described slide is set on described linear bearing, and described up-bow Spring clip is located between described linear bearing and described slide.
4. drilling tool damage wellhead detecting device as claimed in claim 2, it is characterized in that, the upper end of described slide bar is connected with setting nut, is folded with Compress Spring between described setting nut and described slide, and described Compress Spring is set on described slide bar.
5. drilling tool damage wellhead detecting device as claimed in claim 1, it is characterized in that, the outside of described set collar is connected with guide pole, described guide pole is connected with slide block movably, the both sides of described slide block are connected to connecting rod, described connecting rod is connected with described folding semi-ring, and according to described slide block moving axially on described guide pole, two described folding semi-rings are connected to the both sides of described set collar opening or closing.
6. drilling tool damage wellhead detecting device as claimed in claim 5, it is characterized in that, described guide pole is arranged with linear bearing, and described slide block set is located on described linear bearing.
7. drilling tool damage wellhead detecting device as claimed in claim 5, it is characterized in that, described guide pole offers chute, described slide block is connected with locking pin, and described slide block is arranged in described chute movably by described locking pin.
8. drilling tool damage wellhead detecting device as claimed in claim 1, it is characterized in that, described sensor is metal magnetic memory test sensor.
9. drilling tool damage wellhead detecting device as claimed in claim 1, it is characterized in that, the outside of described set collar is connected with fixed head, and described fixed head is provided with vasculum, and described sensor is electrically connected with described vasculum by wire.
10. drilling tool damage wellhead detecting device as claimed in claim 9, it is characterized in that, the lower end of described fixed head is connected with scroll wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538315.7U CN204203167U (en) | 2014-09-18 | 2014-09-18 | Drilling tool damage wellhead detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538315.7U CN204203167U (en) | 2014-09-18 | 2014-09-18 | Drilling tool damage wellhead detecting device |
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| Publication Number | Publication Date |
|---|---|
| CN204203167U true CN204203167U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420538315.7U Withdrawn - After Issue CN204203167U (en) | 2014-09-18 | 2014-09-18 | Drilling tool damage wellhead detecting device |
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| Country | Link |
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| CN (1) | CN204203167U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198577A (en) * | 2014-09-18 | 2014-12-10 | 中国石油大学(北京) | Detection device for well mouth damaged by drilling tool |
| CN106526097A (en) * | 2017-01-12 | 2017-03-22 | 长江大学 | Automatic open-close type drill rod damage detection device |
| CN109115865A (en) * | 2018-09-18 | 2019-01-01 | 中国石油大学(北京) | Disc type coiled tubing damage detection apparatus |
-
2014
- 2014-09-18 CN CN201420538315.7U patent/CN204203167U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198577A (en) * | 2014-09-18 | 2014-12-10 | 中国石油大学(北京) | Detection device for well mouth damaged by drilling tool |
| CN104198577B (en) * | 2014-09-18 | 2017-03-29 | 中国石油大学(北京) | Drilling tool damages wellhead detecting device |
| CN106526097A (en) * | 2017-01-12 | 2017-03-22 | 长江大学 | Automatic open-close type drill rod damage detection device |
| CN109115865A (en) * | 2018-09-18 | 2019-01-01 | 中国石油大学(北京) | Disc type coiled tubing damage detection apparatus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150311 Effective date of abandoning: 20170329 |