CN209025661U - It is installed on the drill string damage well head on-Line Monitor Device for boring disk - Google Patents

Abstract

The utility model discloses a kind of drill strings for being installed on brill disk to damage well head on-Line Monitor Device, is related to field of non destructive testing, comprising: the bottom plate with the first aperture；It is fixed at the protection mechanism bored in disk, protection mechanism has second aperture opposite with the first aperture；The telescoping mechanism that is arranged in accommodating space and be adjacent to mechanism, telescoping mechanism be it is multiple, telescoping mechanism is circumferentially distributed around the first aperture, and telescoping mechanism includes: the first guide rail bracket；Second guide rail bracket；Flexible cylinder can be carried out along the radial direction of the first aperture；With cylinder guide rod disposed in parallel；Being adjacent to mechanism includes: rod swinging frame, is equipped with the box body of metal magnetic memory sensor, the first connecting rod and second connecting rod being connected between rod swinging frame and box body, elastic component, and elastic component is connected between first connecting rod and rod swinging frame or between second connecting rod and rod swinging frame.The application conveniently can detect the realizations such as the drill string joints screw thread of fastening, drill string surface defect in the case where drill string not shackle.

Description

It is installed on the drill string damage well head on-Line Monitor Device for boring disk

Technical field

The utility model relates to field of non destructive testing, in particular to a kind of drill string damage well head for being installed on brill disk is online Monitoring device.

Background technique

Drill string bears diversified load in drilling process, wherein mainly including dead load, alternating load and impact Load, under the effect of these load, drill string bears pressure, drawing, bending, torsion and shearing and answers.In addition, also being deposited between drill string and the borehole wall In friction and collision etc., these can all accelerate the fatigue damage of drill string.Drilling string failure form is mainly crassitude intermediate belt, connector thorn Leakage and joint screw thread fracture etc..

For example, the crackle of drill string male connection often starts close to second of shoulder or the root of third spiral shell button, Due to the stress concentration effect of externally threaded geometry and its root, becomes external screw thread position under a variety of stress and bore Post pole is also easy to produce the weak location of fatigue rupture, and expands under pulsating stress and corrosive medium collective effect, eventually leads to disconnected It splits.The normally opened spiral shell buckle for starting from last site of engagement of the fracture crack of drill string female adapter is fastened in the internal and external threads of drill string Afterwards, it will generate stress concentration effect.Since the sectional area of external screw thread small end endface is become only having from inside and outside two thread segment Stress concentration effect will be present at the abrupt change of cross-section, and then generate fatigue crack under alternating compound stress effect for internal screw thread section, Make the fragile link of fatigue fracture.In addition, the internal screw thread at the abrupt change of cross-section can leak in mud cruelly, the vortex punching of mud Hitting the corrosion with corrosive medium can promote to generate sharp notch at this, therefore can be further exacerbated by stress concentration, to occur It destroys, under the joint effect of both pulsating stress and corrosive medium, fatigue crack can quickly expand until fracture.And for well At mouthful, the pulling force and torque that the drill string joints screw thread at this is subject to are most serious in entire drill string.For conventional drill string spiral shell For line detection, it usually needs will be detected respectively to internal and external screw thread after the joint screw thread shackle of drill string, it is therefore desirable to inside and outside Two external threading detection devices.There are shortcomings for this conventional drill string thread detection mode, and two kinds of detections is not only needed to set Standby, testing staff is also required to grasp the operating method of two kinds of detection devices, and data processing difficulty also increases, in addition, also serious shadow The speed that well head makes a trip is rung, the duration of oil well production is increased.

And non-destructive testing technology means more commonly used at present are concentrated in the stress of early diagnosis drill string joints screw thread position Abnormal and micro-crack fermentation has the following disadvantages: that (1) magnetic leakage detection technology needs will test pullover and is close to tested thread surface, right In well head joint screw thread in the case where drill string not shackle, which can not be applied；(2) ultrasound examination need with There are good contact conditions between measured surface, while ultrasound examination needs good couplant, the two conditions are in spiral shell Line position is difficult to realize, and then will affect the detection effect of ultrasound examination, while the detection method is not suitable for well head in drill string It is detected in the case where not shackle；(3) in existing nondestructive stress measurement detection method, the penetration capacity of X-ray diffraction technology Limited, penetration depth only has tens microns, can not touch thread root；Magnetosonic transmitting, Barkhausen noise and the inspection of magnetic survey stress Survey method is required to electromagnetic excitation coil, this will lead to the structure of detection position and volume is bigger than normal, can not accurately differentiate drill string variable diameter The stress state of point and thread root, it is difficult to application is obtained in thread measurement.Meanwhile it is existing it was verified that existing at present Nondestructive testing technique, such as vortex, ultrasound, X-ray, the gross imperfection that has gone out of detection drill string surface is more effective, for well Mouth thread measurement is detected in the case where requiring not shackle can not achieve；(4) simultaneously, existing drill string damage well head inspection at present Surveying device mainly utilizes four-bar mechanism to realize that detection device is close to drill string always with bow reed, can not be according to the straight of drill string Diameter comes the position of pre-adjustment sensor box, and detection device needs to be temporarily mounted to well head when making a trip to be detected, It also needs to will test device disassembly after making a trip, therefore causes to operate inconvenient.

Utility model content

In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide for the utility model embodiment It is a kind of to be installed on the drill string damage well head on-Line Monitor Device for boring disk, it can be convenient and efficient in the case where drill string not shackle The realizations such as the drill string joints screw thread of fastening, drill string surface defect are detected.

The specific technical solution of the utility model embodiment is:

It is a kind of to be installed on the drill string damage well head on-Line Monitor Device for boring disk, the drill string damage for being installed on brill disk Well head on-Line Monitor Device includes:

Bottom plate with the first aperture；The protection mechanism being fixed in the brill disk, the protection mechanism and institute It states and is formed with accommodating space between bottom plate, the protection mechanism has second aperture opposite with first aperture；

The telescoping mechanism that is arranged in the accommodating space and be adjacent to mechanism, the telescoping mechanism be it is multiple, it is multiple described Telescoping mechanism is circumferentially distributed around first aperture, and the telescoping mechanism includes: the first guide rail bracket；Second guide rail bracket；It can Flexible cylinder is carried out along the radial direction of first aperture, the cylinder of the cylinder is fed through second guide rail bracket, the gas One end of the cylinder of cylinder is fixed on first guide rail bracket；With cylinder guide rod disposed in parallel, the guide rod passes through institute It states the second guide rail bracket and sliding can be generated between second guide rail bracket；The mechanism that is adjacent to is arranged in the telescoping mechanism The end close to first aperture of the piston rod of the cylinder, the guide rod, the mechanism that is adjacent to includes: rod swinging frame, peace Box body equipped with metal magnetic memory sensor, the first connecting rod being connected between the rod swinging frame and the box body and second connect Bar connects between the first connecting rod, the second connecting rod and the box body, the rod swinging frame for hinge, elastic component, the bullet Property part is connected between the first connecting rod and the rod swinging frame or between the second connecting rod and the rod swinging frame, the elasticity Part can make the box body have the driving force mobile to first opening direction.

In a preferred embodiment, the protection mechanism includes: the cover board with second aperture, the lid The edge of second aperture of plate offers and is adjacent to the notch that mechanism passes through described in confession, and the cover board is equal with the bottom plate Row setting；Connect the outer edge of the cover board and the outer peripheral connecting plate of the bottom plate.

In a preferred embodiment, multiple columns, the cover board and the column phase are connected on the bottom plate It is fixedly connected.

In a preferred embodiment, first guide rail bracket and second guide rail bracket are connected to the bottom plate On, first guide rail bracket and second guide rail bracket to match is located at first aperture in the radial direction, and described The first through hole and the second through hole are offered on two guide rail brackets, the cylinder of the cylinder is threaded through in first through hole, The guide rod is threaded through in second through hole, and one end of the cylinder of the cylinder is provided with nut to realize and described first Fixation between guide rail bracket.

In a preferred embodiment, it is provided with guiding metallic sheath in second through hole, the guide rod passes through The guiding metallic sheath.

In a preferred embodiment, the piston rod of the rod swinging frame and the cylinder, the guide rod are close to described One end of first aperture is connected, and the junction of the rod swinging frame and the first connecting rod, the rod swinging frame and described second connect The straight line that the junction of bar is formed is parallel with the axis of drilling rod.

In a preferred embodiment, the box body is equipped with idler wheel close to drilling rod side.

In a preferred embodiment, the first connecting rod, the rod swinging frame, the second connecting rod and the box body Between form parallelogram sturcutre.

In a preferred embodiment, the second connecting rod first connecting rod is close to the bottom plate, the bullet One end of property part is connected to the rod swinging frame close to one end of bottom plate, and the other end of the elastic component is connected to the first connecting rod On.

In a preferred embodiment, the elastic component includes tension spring.

The technical solution of the utility model have it is following significant the utility model has the advantages that

Being installed in the application bores the drill string damage well head on-Line Monitor Device of disk during removing drilling rod, energy Enough under the premise of not shackle, box body is made to be close to drilling rod wall surface, the metallic magnetic in box body with mechanism is adjacent to by telescoping mechanism It can be to drill string joints screw thread, tube body damage and the medium carry out real time on-line monitoring of stress collection, such as under the action of memory sensor This can for the early period of tool joint screw thread and tube body diagnose safety assurance be provided, can also be provided for the grading of drill string reasonably according to According to so that drill string effectively be avoided to lead to the generation of catastrophic failure because fatigue rupture occurs.

Referring to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies practical Novel principle can be in a manner of adopted.It should be understood that the embodiments of the present invention in range not thus by Limitation.In the range of the spirit and terms of appended claims, the embodiments of the present invention includes many changes, modifications With it is equivalent.The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.

Detailed description of the invention

Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.

Fig. 1 is the signal that the drill string damage well head on-Line Monitor Device for boring disk is installed in the utility model embodiment Figure；

Fig. 2 is located at drill string to be installed on the drill string damage well head on-Line Monitor Device of brill disk in the utility model embodiment The partial enlargement diagram of surrounding；

Fig. 3 is that the drill string damage well head on-Line Monitor Device internal structure for boring disk is installed in the utility model embodiment Schematic diagram；

Fig. 4 is that telescopic machine in the drill string damage well head on-Line Monitor Device for bore disk is installed in the utility model embodiment Structure and the schematic diagram for being adjacent to mechanism.

The appended drawing reference of the figures above:

1, bottom plate；11, the first aperture；12, column；2, protection mechanism；21, cover board；211, the second aperture；212, notch； 22, connecting plate；3, telescoping mechanism；31, the first guide rail bracket；311, third through hole；32, the second guide rail bracket；321, first runs through Hole；322, the second through hole；323, it is oriented to metallic sheath；33, cylinder；331, cylinder；332, piston rod；34, guide rod；35, nut； 4, it is adjacent to mechanism；41, rod swinging frame；42, box body；421, idler wheel；43, first connecting rod；44, second connecting rod；45, elastic component；5, it bores Disk；6, drill string.

Specific embodiment

In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.It needs to illustrate It is that when element is referred to as " being set to " another element, it can directly on the other element or there may also be placed in the middle Element.When an element is considered as " connection " another element, it can be directly to another element or can Centering elements can be existed simultaneously.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or Electrical connection, the connection being also possible to inside two elements can be directly connected, can also indirectly connected through an intermediary, For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.Made herein Term " vertical ", " horizontal ", "upper", "lower", "left", "right" and similar statement simply to illustrate that mesh , it is not meant to be the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more Any and all combinations of relevant listed item.

In order to conveniently be lacked to the drill string joints screw thread of fastening, drill string surface in the case where drill string not shackle It falls into and waits realizations detection, propose a kind of drill string damage well head on-Line Monitor Device for being installed on and boring disk in this application, Fig. 1 is The schematic diagram for boring the drill string damage well head on-Line Monitor Device of disk is installed in the utility model embodiment, Fig. 2 is that this is practical The drill string that brill disk is installed in new embodiment damages the partial enlargement signal that well head on-Line Monitor Device is located at around drill string Figure, Fig. 3 are that the drill string damage well head on-Line Monitor Device internal structure signal for boring disk is installed in the utility model embodiment Figure, Fig. 4 be the utility model embodiment in be installed on bore disk drill string damage well head on-Line Monitor Device in telescoping mechanism and It is adjacent to the schematic diagram of mechanism, as shown in Figures 1 to 4, the drill string damage well head on-Line Monitor Device for being installed on brill disk can wrap It includes: the bottom plate 1 with the first aperture 11；It is fixed at the protection mechanism 2 bored in disk 5, between protection mechanism 2 and bottom plate 1 It is formed with accommodating space, protection mechanism 2 has second aperture 211 opposite with the first aperture 11；It is arranged in accommodating space Telescoping mechanism 3 and be adjacent to mechanism 4, telescoping mechanism 3 be it is multiple, multiple telescoping mechanisms 3 are circumferentially distributed around the first aperture 11, are stretched Mechanism 3 includes: the first guide rail bracket 31；Second guide rail bracket 32；Flexible cylinder 33, gas can be carried out along the radial direction of the first aperture 11 The cylinder 331 of cylinder 33 is fed through the second guide rail bracket 32, and one end of the cylinder 331 of cylinder 33 is fixed on the first guide rail bracket 31；With The guide rod 34 disposed in parallel of cylinder 33, guide rod 34 is across the second guide rail bracket 32 and sliding can be generated the second guide rail bracket 32； It is adjacent to the end close to the first aperture 11 that the piston rod 332 of cylinder 33 in telescoping mechanism 3, guide rod 34 is arranged in mechanism 4, is adjacent to Mechanism 4 includes: rod swinging frame 41, is equipped with the box body 42 of metal magnetic memory sensor, is connected between rod swinging frame 41 and box body 42 First connecting rod 43 and second connecting rod 44, between first connecting rod 43, second connecting rod 44 and box body 42, rod swinging frame 41 for hinge connect It connecing, elastic component 45, elastic component 45 is connected between first connecting rod 43 and rod swinging frame 41 or between second connecting rod 44 and rod swinging frame 41, Elastic component 45 can make box body 42 have the driving force mobile to 11 direction of the first aperture.

The drill string damage well head on-Line Monitor Device that being installed in the application bores disk, which is used to be mounted on, bores disk 5 End face or lower end surface, so that the first aperture 11 of bottom plate 1, the second aperture 211 of protection mechanism 2 are worn in brill disk 5 for drill string 6 The place of mistake aligns, and the axis of three is located at same place.Being installed in the application bores the drill string damage well head on-line monitoring of disk For device when being monitored to drill string, the joint screw thread of drill string does not need shackle, is plugged in bores disk 5, the first aperture always 11 and second in aperture 211.When well head removes drilling rod, according to the caliber of drill string 6, the pressure of air pump in telescoping mechanism 3 is adjusted, So that the piston rod 332 of cylinder 33 stretches under the promotion of air pump along the radial direction of the first aperture 11, stretching Drive guide rail that box body 42 is adjusted to ideal position jointly during contracting, which can be the pendulum being adjacent in mechanism 4 For bridge 41 apart from drilling rod surface certain distance, this can make box body 42 be close to drilling rod apart from lower by being adjacent under the adjustment of mechanism 4 Surface.After telescoping mechanism 3 reaches ideal position, the elastic component 45 being adjacent in mechanism 4 connects first connecting rod 43, second Bar 44 and box body 42 are rotated around rod swinging frame 41, to be finely adjusted according to position of the diameter of drill string 6 to box body 42, so that box Body 42 is adjacent to drill string 6 under the action of elastic component 45, and then preferably adapts to the variation of 6 diameter of drill string.Multiple box bodys 42 at this time In metal magnetic memory sensor nestle up one week of drilling rod, start metal magnetic memory sensor later and drilling rod be monitored, The signal that metal magnetic memory sensor will test can be transmitted through the cable in data acquisition box, then pass through wireless transmission Mode transfers signals to computer and carries out signal analysis and processing.The signal collected can significantly be shown after handling by analysis Damage and the stress concentration status for showing tested drill string 6 realize that the early stage damaged to drill string 6 examines by the analysis to stress state Disconnected and prediction, drill string damage may include drill string joints screw thread, drill string surface defect etc., so it is possible to prevente effectively from considerable safety The generation of accident.

The drill string that disk is bored in order to be better understood by being installed in the application damages well head on-Line Monitor Device, under Face will be further explained and illustrate to it.As shown in Figure 1, the middle part of bottom plate 1 has the first aperture 11, bottom plate 1 and first is opened Hole 11 substantially can be rounded, to be adapted with the cross section of drill string 6.Protection mechanism 2, which is fixed at, to be bored in disk 5, is prevented Shield mechanism 2 is mainly used for telescoping mechanism 3 and is adjacent to the formation protection of mechanism 4.Protection mechanism 2 may include: with the second aperture 211 cover board 21, the edge of the second aperture 211 of cover board 21 are offered for being adjacent to the notch 212 that mechanism 4 passes through, cover board 21 Setting parallel with bottom plate 1；The outer edge of connecting cover plate 21 and the outer peripheral connecting plate 22 of bottom plate 1.The second of cover board 21 opens Hole 211 and cover board 21 are generally circular, and the position of the second aperture 211 of cover board 21 is corresponding with the first aperture 11, axis with The axis of first aperture 11 is identical.There is a certain distance, so that protection mechanism 2 and bottom plate 1 between cover board 21 and bottom plate 1 Between be formed with accommodating space.Connecting plate 22 can be divided into two it is semicircular arc-shaped, edge each other can pass through fastening Mechanism etc. is connected together.Connecting plate 22 is mainly used for being sealed the edge of cover board 21 and bottom plate 1.

In order to realize being fixedly connected between cover board 21 and bottom plate 1, as shown in figure 3, being connected on bottom plate 1 multiple vertical Column 12, column 12 are arranged perpendicular to bottom plate 1, and cover board 21 is fixedly connected with 12 phase of column.It is offered on bottom plate 1 and cover board 21 multiple The both ends of hole, column 12 offer threaded hole, pass through hole by bolt, screw etc. and are threaded into column 12 again, thus real Existing column 12 is fixedly connected with bottom plate 1,21 phase of cover board respectively.

As shown in Figure 1, bottom plate 1, which is closely attached on, bores the setting of disk 5, cover board 21 is located remotely from one end setting for boring disk 5.Work as patch When tight mechanism 4 rotates, the notch 212 of 211 edge of the second aperture on cover board 21 can be passed through by being adjacent to mechanism 4, to keep away Exempt to be adjacent to mechanism 4 and the edge of cover board 21 is touched.

As shown in figure 3, telescoping mechanism 3 is arranged in accommodating space with mechanism 4 is adjacent to.Telescoping mechanism 3 is multiple, Duo Geshen Contracting mechanism 3 is circumferentially distributed around the first aperture 11.It is adjacent to mechanism 4 and telescoping mechanism 3 is set close to one end of the first aperture 11.It stretches Contracting mechanism 3 is fixedly installed with 1 phase of bottom plate.

As shown in figure 4, telescoping mechanism 3 may include: the first guide rail bracket 31；Second guide rail bracket 32；It can be along the first aperture 11 radial direction carries out flexible cylinder 33, and the cylinder 331 of cylinder 33 is fed through the second guide rail bracket 32, the cylinder 331 of cylinder 33 One end is fixed on the first guide rail bracket 31；With the guide rod 34 disposed in parallel of cylinder 33, guide rod 34 passes through the second guide rail bracket 32 and energy Sliding is generated between the second guide rail bracket 32.It is adjacent to mechanism 4 and the piston rod 332 of cylinder 33 in telescoping mechanism 3, guide rod 34 is set Close to the first aperture 11 end.Specifically, the first guide rail bracket 31 and the second guide rail bracket 32 can pass through bolt or screw Etc. being connected on bottom plate 1.The first guide rail bracket 31 and the second guide rail bracket 32 to match is located at the first aperture 11 in the radial direction, In this way, cylinder 33 is made to stretch along the radial direction of the first aperture 11.321 He of the first through hole is offered on second guide rail bracket 32 Second through hole 322, the cylinder 331 of cylinder 33 are threaded through in the first through hole 321, and guide rod 34 is threaded through the second through hole 322 In.Third through hole 311 is offered on first guide rail bracket 31, one end of the cylinder 331 of cylinder 33 passes through third through hole 311, What the cylinder 331 of cylinder 33 was pierced by third through hole 311 is partially threaded into nut 35, to realize between the first guide rail bracket 31 It is fixed.When the cylinder 331 to cylinder 33 under pressure, the piston rod 332 of the pushed at high pressure cylinder 33 of cylinder 331 is opened along first The radial direction in hole 11 is stretched, and while piston rod 332 stretches, piston rod 332 drives the also edge of guide rod 34 by being adjacent to mechanism 4 Radial direction along the first aperture 11 is slided.

As shown in figure 4, rod swinging frame 41 is connected with the piston rod 332 of cylinder 33, guide rod 34 close to one end of the first aperture 11 It connects, the straight line and drilling rod of rod swinging frame 41 and the junction of first connecting rod 43, the junction formation of rod swinging frame 41 and second connecting rod 44 Axis it is parallel.Guide rod 34 has guiding role, to avoid the piston rod 332 when flexible of cylinder 33 from deviating, simultaneously Guide rod 34 also be adjacent to mechanism 4 and be connected, in this way, telescoping mechanism 3 is connected by two o'clock with mechanism 4 is adjacent to, can effectively protect The secured intensity of both cards connection prevents from being adjacent to mechanism 4 and tilts in gravity or drilling rod to being adjacent under mechanism 4 exerts a force.

As shown in figure 4, being provided with guiding metallic sheath 323 in the second through hole 322, guide rod 34 passes through guiding metallic sheath 323. Guiding metallic sheath 323 can be fixed with 32 phase of the second guide rail bracket.Guiding metallic sheath 323 can be made of copper, in this way, can be effective Reduce the force of sliding friction between guide rod 34 and the second through hole 322.

As shown in figure 4, being adjacent to mechanism 4 may include: rod swinging frame 41, the box body 42 of metal magnetic memory sensor is installed, The first connecting rod 43 and second connecting rod 44 being connected between rod swinging frame 41 and box body 42, first connecting rod 43, second connecting rod 44 and box Between body 42, rod swinging frame 41 for hinge connect, elastic component 45, elastic component 45 be connected between first connecting rod 43 and rod swinging frame 41 or Between second connecting rod 44 and rod swinging frame 41, elastic component 45 can make box body 42 have the driving force mobile to 11 direction of the first aperture.

As shown in figure 4, forming parallelogram knot between first connecting rod 43, rod swinging frame 41, second connecting rod 44 and box body 42 Structure, due to being connected by a hinge between first connecting rod 43, second connecting rod 44 and rod swinging frame 41, box body 42, first connecting rod 43, second connecting rod 44 and box body 42 can be rotated around rod swinging frame 41.

As shown in figure 4, rod swinging frame 41 is connected with the piston rod 332 of cylinder 33, guide rod 34 close to one end of the first aperture 11 It connects, the straight line and drilling rod of rod swinging frame 41 and the junction of first connecting rod 43, the junction formation of rod swinging frame 41 and second connecting rod 44 Axis it is parallel, in this way, first connecting rod 43, second connecting rod 44 and box body 42 can be made to be rotated around rod swinging frame 41 When, box body 42 and then can be tightly attached on the wall surface of drilling rod always with the axis keeping parallelism of drilling rod.

As shown in figure 4, box body 42 is equipped with idler wheel 421 close to drilling rod side, idler wheel 421 can be set two, a position In the upper end of box body 42, another is located at the lower end of box body 42, in this way, idler wheel 421 can when box body 42 is tightly attached on drill string 6 To effectively reduce the frictional force between box body 42 and drill string 6, sliding is generated with box body 42 when moving up and down convenient for drill string 6.

In a kind of feasible embodiment, as shown in Fig. 2, second connecting rod 44 is compared with first connecting rod 43 close to bottom plate 1, elasticity One end of part 45 is connected to rod swinging frame 41 close to one end of bottom plate 1, and the other end of elastic component 45 is connected on first connecting rod 43.? In present embodiment, elastic component 45 can use tension spring.After telescoping mechanism 3 reaches ideal position, work of the tension spring in convergent force Become around rod swinging frame 41 to what the direction close to drilling rod was rotated with lower drive first connecting rod 43, second connecting rod 44 and box body 42 Gesture, so that the side wall of box body 42 is close to the wall surface of drilling rod, meanwhile, according to first connecting rod 43, second connecting rod 44 and 42 turns of box body Dynamic degree enables to the drill string 6 for being adjacent to mechanism 4 and different tube diameters to be adapted.

Being installed in the application bores the drill string damage well head on-Line Monitor Device of disk during removing drilling rod, energy Enough under the premise of not shackle, box body 42 is made to be close to drilling rod wall surface with mechanism 4 is adjacent to by telescoping mechanism 3, in box body 42 It can be to drill string joints screw thread, tube body damage and the medium carry out real-time online prison of stress collection under the action of metal magnetic memory sensor It surveys, can so be diagnosed for the early period of tool joint screw thread and tube body and safety assurance is provided, can also provided rationally for the grading of drill string Foundation, so that drill string effectively be avoided to lead to the generation of catastrophic failure because fatigue rupture occurs.

All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot Together in this.Describing combined term " substantially by ... constitute " should include identified element, ingredient, component or step and reality Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or " comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any Attribute is all optional.Multiple element, ingredient, component or step can be mentioned by single integrated component, ingredient, component or step For.Alternatively, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation Suddenly.For describe the open "a" or "an" of element, ingredient, component or step do not say in order to exclude other elements, at Point, component or step.

All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.Above-described embodiment is only Illustrate the technical ideas and features of the present invention, it is practical new its object is to allow person skilled in the art that can understand this The content of type is simultaneously implemented accordingly, does not limit the protection scope of the present invention.It is all real according to the spirit of the present invention Equivalent change or modification made by matter, should be covered within the scope of the utility model.

Claims (10)

1. a kind of be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that described to be installed on brill disk Drill string damage well head on-Line Monitor Device include:

Bottom plate with the first aperture；The protection mechanism being fixed in the brill disk, the protection mechanism and the bottom Accommodating space is formed between plate, the protection mechanism has second aperture opposite with first aperture；

The telescoping mechanism that is arranged in the accommodating space and be adjacent to mechanism, the telescoping mechanism be it is multiple, it is multiple described flexible Mechanism is circumferentially distributed around first aperture, and the telescoping mechanism includes: the first guide rail bracket；Second guide rail bracket；Can along institute The radial direction for stating the first aperture carries out flexible cylinder, and the cylinder of the cylinder is fed through second guide rail bracket, the cylinder One end of cylinder is fixed on first guide rail bracket；With cylinder guide rod disposed in parallel, the guide rod passes through described the Sliding is generated between two guide rail brackets and energy and second guide rail bracket；The mechanism that is adjacent to is arranged described in the telescoping mechanism The end close to first aperture of the piston rod of cylinder, the guide rod, the mechanism that is adjacent to includes: rod swinging frame, is equipped with The box body of metal magnetic memory sensor, the first connecting rod and second connecting rod being connected between the rod swinging frame and the box body, institute It states and is connected between first connecting rod, the second connecting rod and the box body, the rod swinging frame for hinge, elastic component, the elastic component It is connected between the first connecting rod and the rod swinging frame or between the second connecting rod and the rod swinging frame, the elastic component energy Make the box body that there is the driving force mobile to first opening direction.

2. according to claim 1 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute Stating protection mechanism includes: the cover board with second aperture, and the edge of second aperture of the cover board offers confession The notch for being adjacent to mechanism and passing through, cover board setting parallel with the bottom plate；Connect outer edge and the institute of the cover board State the outer peripheral connecting plate of bottom plate.

3. according to claim 2 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute It states and is connected with multiple columns on bottom plate, the cover board is mutually fixedly connected with the column.

4. according to claim 1 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute It states the first guide rail bracket and second guide rail bracket is connected on the bottom plate, first guide rail bracket to match and described second Guide rail bracket is located at first aperture in the radial direction, and the first through hole and second is offered on second guide rail bracket and is run through Hole, the cylinder of the cylinder are threaded through in first through hole, and the guide rod is threaded through in second through hole, the gas One end of the cylinder of cylinder is provided with nut to realize the fixation between first guide rail bracket.

5. according to claim 4 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute It states and is provided with guiding metallic sheath in the second through hole, the guide rod passes through the guiding metallic sheath.

6. according to claim 1 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute State rod swinging frame and be connected with the piston rod of the cylinder, the guide rod close to one end of first aperture, the rod swinging frame with The axis phase of straight line and drilling rod that the junction of the junction of the first connecting rod, the rod swinging frame and the second connecting rod is formed In parallel.

7. according to claim 1 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute It states box body and idler wheel is installed close to drilling rod side.

8. according to claim 1 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute It states and forms parallelogram sturcutre between first connecting rod, the rod swinging frame, the second connecting rod and the box body.

9. according to claim 1 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that institute The second connecting rod first connecting rod is stated close to the bottom plate, one end of the elastic component is connected to the rod swinging frame close to bottom plate One end, the other end of the elastic component is connected on the first connecting rod.

10. according to claim 9 be installed on the drill string damage well head on-Line Monitor Device for boring disk, which is characterized in that The elastic component includes tension spring.