A kind of mechanical hoop locator and its application process
Technical field
The invention belongs to oil gas field stimulation technology field, and in particular to a kind of mechanical hoop locator and its application side
Method, it is one of underground operation tool important in petroleum-gas fiedl pressure break, acidizing treatment operation.
Background technology
Mechanical hoop locator is one of important tool commonly used in coiled tubing construction operation.The three of onsite application at present
Wing formula locator, it is producing larger frictional resistance to be formed by the sensing projection of sensor block by tangling box face during hoop
Pulling force pulse in tubing string, tubing string depth location is counted and positions by pulling force pulse.Locator sensor block is limited by pressing plate
It is movable to be scheduled between housing 1 and pressing plate, and when locator crosses hoop, it senses projection and tangles box face, sensor block lower surface top
On pressing plate, i.e. sensor block lower surface is bonded with pressing plate, and is bonded angle very little, is easily formed self-locking, is caused sensor block can not
It is pressed down to be retracted into housing 1 and causes lock of tool drilling.For security risk existing for such a mechanical hoop locator, one is devised
The hinge of the controllable sensor block range of movement of kind, avoids sensor block lower surface from being bonded with pressing plate, evades bit freezing risk.
The content of the invention
The purpose of the present invention is to overcome existing machinery hoop locator locking phenomenon to be present, causes sensor block to be pressed down
The problem of being retracted into housing 1 or even causing lock of tool drilling.
Therefore, the invention provides a kind of mechanical hoop locator, including housing, housing exterior walls circumferentially consolidate by uniform intervals
Surely there are multiple pressing plates, elongate holes are offered on each block pressur plate, elongate holes are embedded with sensor block, the sensor block and housing
Between be lined with arc-shaped spring piece, the arc top of arc-shaped spring piece contacts with sensor block, and arc apical grafting contact is close to sensor block bottom, and institute
Sensor block is stated with being connected with hinge controlling organization on pressing plate.
The hinge controlling organization is made up of aperture, bearing pin and groove, and the aperture is opened in along the short side of elongate holes
On sensor block and run through sensor block, groove offers relative two, and 2 groove difference respective apertures on each block pressur plate
Two ports, bearing pin passes through aperture, and the both ends of bearing pin are overlapped in groove and can moving radially along housing.
The bearing pin is the big Step Shaft of the small mid diameter of both ends diameter, and the width of groove is less than the diameter of aperture.
The pressing plate is fixed by screws on housing, and the both ends of elongate holes and the both ends of sensor block are set respectively on pressing plate
There is step surface, sensor block is put into elongate holes, and both step surfaces mutually overlap.
The upper and lower side of sensing protruding parts is respectively equipped with chamfering inclined-plane, and the slope on upper chamfer inclined-plane in the middle part of the sensor block
The gradient of the degree more than lower chamfer inclined-plane.
The surface spraying of sensing protruding parts has cobalt base hard alloy in the middle part of the sensor block.
A kind of application process of mechanical hoop locator, mechanical hoop locator are connected to tubing string lower end and with coiled tubings
G.I.H, arc-shaped spring piece strut sensor block, and protruding parts is sensed after strutting and is attached on internal surface of sleeve pipe, upper lifting pipe post, machine
Tool hoop locator moves upwards therewith, when sensing protruding parts in the hoop position of two section sleeve pipes, senses protruding parts
Upper chamfer inclined-plane tangles box face, and box face pushes down sensing protruding parts, continues upper lifting pipe post, and will sense protuberance
Position presses to housing until sensing protruding parts is fully retracted into internal surface of sleeve pipe, sense the up/down steps face of protruding parts respectively with pressing plate
The up/down steps emaciated face of upper elongate holes is from the sensing protruding parts retraction housing of final all sensor blocks is interior and fits in sleeve pipe
Inwall, when passing through collar by coiled tubing driving machinery hoop locator the change of pulling force judge tubing string depth position
Put.
Beneficial effects of the present invention:
(1)Sensor block can both be rotated around bearing pin, while bearing pin can also be up and down in groove, and sensor block is protected in length
Demonstrate,prove its upper and lower end face and do not produced with pressing plate and contacted.Such a structure is oblique by sensing protruding parts chamfering when sensor block crosses hoop
Face produced hoop induction force with box face effect, and sensor block can only be rotated, even if bearing pin by bearing pin restriction effect around bearing pin
Groove interior edge housing on pressing plate is radially movable, and sensor block upper and lower end face will not contact with pressing plate all the time, and it is convex to have evaded sensing
Go out sensor block lower surface while box face is withstood at position(Or upper surface)Pressing plate is withstood easily to produce sensing block self locking and block
The risk of brill.
(2)The elongate holes for placing spring leaf are machined with housing, the hole of elongate holes is wide to be slightly larger than spring leaf width, adds
Spring leaf arc top so increases box face and squeezed close proximity to sensor block lower end after ensureing spring leaf placement during section chief's bar hole
Arm of force during sensor block is pressed, is equal to the induction force increased when locator crosses hoop in pit shaft, is convenient to locator and visits section
Hoop positioning.
(3)The specially treated means such as spraying are passed through in sensor block sensing protruding parts, make material hardness value at this very high, wear-resisting
Performance is good, locator in sleeve pipe through long, constantly continuously remove, sensor block can reach less wear extent and reliable
Work.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of mechanical hoop locator.
Fig. 2 is the schematic diagram when sensor block of mechanical hoop locator is caught in hoop annular groove.
Fig. 3 is the schematic diagram when sensor block of mechanical hoop locator passes through hoop.
Fig. 4 is the schematic diagram of sensor block.
A portions in Fig. 3 are sensor block lower surface and pressing plate not contact position.
Description of reference numerals:1st, housing;2nd, pressing plate;3rd, bearing pin;4th, sensor block;5th, spring leaf;6th, screw;7th, sleeve pipe;8、
Hoop;9th, aperture;10th, groove;4.1st, upper chamfer inclined-plane;4.2 times chamfer inclined-planes;4.3rd, protruding parts is sensed.
Embodiment
Embodiment 1:
Present embodiments provide a kind of mechanical hoop locator as shown in Figure 1, including housing 1, the outer wall of housing 1 are circumferentially uniform
Interval is fixed with multiple pressing plates 2, elongate holes is offered on each block pressur plate 2, elongate holes are embedded with sensor block 4, the sense
Answer and arc-shaped spring piece 5 is lined between block 4 and housing 1, the arc top of arc-shaped spring piece 5 contacts with sensor block 4, and arc apical grafting contact is close
The bottom of sensor block 4, and the sensor block 4 on pressing plate 2 with being connected with hinge controlling organization.
The design of mechanical hoop locator is as follows:More block pressur plates 2 are circumferentially uniform to be fitted on housing 1, outer after fitting
It is constant that footpath is maintained as the external diameter value of housing 1, and strip hole is processed on pressing plate 2, sensor block 4, sensor block 4 and housing are just placed in hole
Arc-shaped spring piece 5 is lined between 1, housing 1 is processed with pressing plate 2 using final external diameter identical tubing or bar.Sensor block 4 and pressure
The hinge controlling organization connected on plate 2 has evaded sensor block lower surface while box face is withstood in sensing protruding parts(On or
End face)Withstand the risk that pressing plate easily produces sensing block self locking and bit freezing.
Arc-shaped spring piece 5 is lined between sensor block 4 and housing 1, the arc top of arc-shaped spring piece 5 contacts with sensor block 4, arc bullet
5 another both ends of reed are pressed in the elongate holes on housing 1, press sensor block 4, and sensor block 4 can retract in housing 1, retraction
During sensor block 4 extrude arc-shaped spring piece 5, the power revocation of pressing sensor block 4, sensor block 4 can reply in arc-shaped spring piece 5 again
Strutted in the presence of power to outside housing 1.
It should be noted that the arc top of arc-shaped spring piece 5 contacts with sensor block 4, arc apical grafting contact is under sensor block 4
Portion, the above design the arm of force that can increase compression spring leaf, ensured to produce larger induction force during hoop.The hole of elongate holes
Width is slightly larger than spring leaf width, and spring leaf arc top is close proximity under sensor block after ensureing spring leaf placement when processing elongate holes
End, so increase box face extruding sensor block when the arm of force, be equal to increase locator in pit shaft cross hoop when
Induction force, it is convenient to locator and visits hoop positioning.
Embodiment 2:
On the basis of embodiment 1, as shown in Figure 1, Figure 2 and Figure 3, the hinge controlling organization is by aperture 9, bearing pin 3 and groove
10 compositions, short side of the aperture 9 along elongate holes are opened on sensor block 4 and run through sensor block 4, and groove 10 is in each piece of pressure
Relative two are offered on plate 2, and 2 grooves 10 distinguish two ports of respective apertures 9, bearing pin 3 passes through aperture 9, bearing pin 3
Both ends be overlapped in groove 10 and can moving radially along housing 1.
The upper end of sensor block 4 is laterally machined with aperture 9, on pressing plate 2 with the correspondence position of 4 aperture of sensor block 9 processing fluted 10,
The width of groove 10 is slightly less than the diameter of aperture 9 on sensor block 4, and sensor block 4, pressing plate 2, the component of bearing pin 3 three turn into a hinge after loading
Chain mechanism, sensor block 4 can rotate around bearing pin 3, while bearing pin 3 can also be radially up and down in 10 interior edge housing of groove 1.
It should be noted that matching somebody with somebody for insertion bearing pin 3 in aperture 9, hole and axle is combined into gap cooperation to ensure that bearing pin 3 can be certainly
By rotating, after bearing pin 3 penetrates the aperture 9 on sensor block 4 during assembling, sensor block 4 is put into the strip hole on pressing plate 2, is put into
While ensure bearing pin 3 be caught in the groove 10 on pressing plate 2, after assembling, sensor block 4 can both rotate around bearing pin 3, sell simultaneously
Axle 3 can also be up and down in groove 10, and sensor block 4 ensures that its upper and lower end face does not produce with pressing plate 2 in length and contacted.This
When sensor block 4 crosses hoop, sensor block 4 can only be rotated, even if bearing pin 3 is being pressed kind structure by the restriction effect of bearing pin 3 around bearing pin 3
The interior edge housing 1 of groove 10 on plate 2 is radially movable, and the upper and lower end face of sensor block 4 will not contact with pressing plate 2 all the time, evade sensing
Sensor block lower surface while box face is withstood in protruding parts(Or upper surface)Withstand pressing plate easily produce sensing block self locking and
The risk of bit freezing.
Embodiment 3:
On the basis of embodiment 2, the bearing pin 3 is the big Step Shaft of the small mid diameter of both ends diameter, and the width of groove 10
Less than the diameter of aperture 9.Bearing pin 3 is processed into Step Shaft broad in the middle small in ends, and wherein countershaft is just passed through aperture on sensor block
9, axle small in ends is just put into the groove 10 on pressing plate.Bearing pin 3 is machined with shoulder, thin ends and thick middle, and such bearing pin 3 will not
Come off from pressing plate.
Embodiment 4:
On the basis of embodiment 1, the pressing plate 2 is fixed on housing 1 by screw 6, on pressing plate 2 both ends of elongate holes with
The both ends of sensor block 4 are respectively equipped with step surface, and sensor block 4 is put into elongate holes, and both step surfaces mutually overlap.
After sensor block 4 is put into the strip hole of pressing plate 2, its step surface tangles the step surface of pressing plate 2 so as to ensure sensor block 4 from interior
Activity is without dropping between housing 11 and pressing plate 2;Strip hole is processed on pressing plate 2, pressing plate 2 fits in the one side of housing 1
Middle strip hole upper and lower side processes a step surface, while sensor block 4 is processed into strip, and upper and lower side is also machined with step surface, protects
Card sensor block 4 can be put into the strip hole of pressing plate 2 while both step surfaces mutually tangle, and sensor block 4 can only be in pressing plate 2 and housing 1
Between freely activity in space.
Embodiment 5:
On the basis of embodiment 1, as shown in the A portions in Fig. 4 and Fig. 3, the middle part of the sensor block 4 sensing protruding parts 4.3
Upper and lower side is respectively equipped with chamfering inclined-plane, and the gradient on upper chamfer inclined-plane 4.1 is more than the gradient on lower chamfer inclined-plane 4.2.
The gradient on upper chamfer inclined-plane 4.1 is steep, the gentle gradient on lower chamfer inclined-plane 4.2, ensures that instrument is suitable in pit shaft
Sharp put on the ground is put and had obvious induction force when above putting forward hoop;Such a structure is when sensor block 4 crosses hoop 8, by sense
Answer protruding parts chamfering inclined-plane to be acted on box face and produced hoop induction force, sensor block 4 is by the restriction effect of bearing pin 3, only meeting
Rotated around bearing pin 3, even if groove 10 interior edge housing 1 of the bearing pin 3 on pressing plate 2 is radially movable, the upper and lower end face of sensor block 4 is all the time not
It can be contacted with pressing plate 2, evade sensor block lower surface while box face is withstood in sensing protruding parts(Or upper surface)Withstand
Pressing plate easily produces the risk of sensing block self locking and bit freezing.
After locator enters well with tubing string, when sensor block 4, which senses protruding parts, to be among internal surface of sleeve pipe, by sleeve pipe
Internal diameter restrictions, sensor block 4, which is sensed after protruding parts 4.3 struts, to be attached on internal surface of sleeve pipe, and now sleeve pipe has equivalent to sensor block 4
The effect extruded into housing 1, same sensor block 4 can extrude arc-shaped spring piece 5, upper lifting pipe post, and locator moves with upward,
When moving to the hoop position that the sensing protruding parts 4.3 of sensor block 4 is connected just at two sleeve pipes, because internal diameter is big at hoop
In casing inner diameter, spring leaf outwards struts sensor block, and sensing protruding parts 4.3 touch hoop inwall, continues upper lifting pipe post, sense
Answer block 4 up with continuing, sensor block 4 senses chamfer inclined-plane on protruding parts 4.3 and tangles box face, in ramp effect
Under, sensing protruding parts is pressed towards in housing 1, and final all sensing protruding parts retraction housings 1 are interior and fit in internal surface of sleeve pipe,
In the process, the support masterpiece of the frictional resistance and arc-shaped spring piece on chamfering inclined-plane and box face to sensor block need to be overcome
Normal value is reverted to after being increased suddenly with the pulling force of, upper lifting pipe post, that is, shows as locator and cross hoop showing.
Embodiment 6:
On the basis of embodiment 5, the surface spraying of the middle part of the sensor block 4 sensing protruding parts 4.3 has cobalt base hard alloy.
Sensor block sensing protruding parts makes material hardness value at this very high, anti-wear performance is good, positioning by specially treated means such as sprayings
Device in sleeve pipe through long, constantly continuously remove, sensor block can reach less wear extent and reliably working.
Embodiment 7:
A kind of application process of mechanical hoop locator, mechanical hoop locator are connected to tubing string lower end and with coiled tubing tripping in
In well, arc-shaped spring piece 5 struts sensor block 4, and protruding parts 4.3 is sensed after strutting and is attached on the inwall of sleeve pipe 7, upper lifting pipe post,
Mechanical hoop locator moves upwards therewith, and when sensing protruding parts 4.3 in 8 position of hoop of two section sleeve pipes 7, sensing is convex
Go out chamfer inclined-plane 4.1 on position 4.3 and tangle the end face of sleeve pipe 7, the end face of sleeve pipe 7 pushes down sensing protruding parts 4.3, continues upper lifting pipe
Post, and sensing protruding parts 4.3 is pressed into housing 1 until sensing protruding parts 4.3 is fully retracted into the inwall of sleeve pipe 7, sensing protrusion
The up/down steps face at position 4.3 is respectively with the up/down steps emaciated faces of elongate holes on pressing plate 2 from the sense of final all sensor blocks 4
Answer in the retraction housing 1 of protruding parts 4.3 and fit in the inwall of sleeve pipe 7, passed through by coiled tubing driving machinery hoop locator
The change of pulling force judges tubing string depth location during collar.
In final all sensing protruding parts retraction bodies and internal surface of sleeve pipe is fitted in, in the process, chamfering need to be overcome
The frictional resistance and arcuate bombing leaf of inclined-plane and box face are acted on the support force of sensor block, and the pulling force of upper lifting pipe post adds suddenly
Normal value is reverted to after big, that is, shows as locator and cross hoop showing.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.The portion that the present embodiment does not describe in detail
The well-known components and common structure or conventional means of part and the structure category industry, are not described one by one here.