CN208330248U - Underground rope shearing device - Google Patents
Underground rope shearing device Download PDFInfo
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- CN208330248U CN208330248U CN201820615181.2U CN201820615181U CN208330248U CN 208330248 U CN208330248 U CN 208330248U CN 201820615181 U CN201820615181 U CN 201820615181U CN 208330248 U CN208330248 U CN 208330248U
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- lifting rope
- cutter
- rope
- knife bar
- cut
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- 238000010008 shearing Methods 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 50
- 238000005520 cutting process Methods 0.000 claims abstract description 44
- 241000251468 Actinopterygii Species 0.000 abstract description 7
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 241000269793 Cryothenia peninsulae Species 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides an underground rope shearing device which is used for shearing a lifting rope connected with a conical rope cap end of a test tool string and comprises a cutter bar and a cutter arranged at the cutter head end of the cutter bar; the cutter bar is provided with a lifting rope channel which penetrates through the cutter head end and the cutter tail end of the cutter bar; the cutter head end of the cutter bar is provided with a first inclined plane, the cutting end of the cutter is provided with a second inclined plane, and the first inclined plane and the second inclined plane are positioned in the same plane; the cutter faces the junction of the side face of the lifting rope channel and the second inclined face to form a cutting edge, and the moving area of the cutting edge passes through the connecting position of the lifting rope and the conical rope cap end. The utility model provides a cut rope device in pit cuts the lifting rope of being connected with the testing tool cluster at the fag end, reduces the fish that falls in the pit, convenient follow-up normal test, paraffin removal and salvage the operation.
Description
Technical field
The utility model relates to oil gas production equipment technical fields more particularly to a kind of underground to cut rope device.
Background technique
Well testing test is an important means of reservoir engineering research, and the reservoir of oil/gas well can be obtained by well testing test
Parameter understands the current mining of oil/gas well, consequently facilitating formulating well stimulation.
It is transferred in testing well frequently with by testing tool string at present, carries out the well testing test of oil/gas well.In test process
In often due to underground situation complexity, it is smaller additionally, due to the gap between testing tool string and the borehole wall, during removing
Easily there is testing tool string and meet card situation, causes the generation of underground fish trouble.When testing tool string occurs meeting card situation, often
The lifting rope for hanging testing tool string is cut using from pithead position, to facilitate subsequent job.
However, a large amount of using will cause lifting rope (such as wirerope) cutting of testing tool string from pithead position at present
Lifting rope stay in well, make troubles to subsequent proper testing, wax removal and fishing.
Utility model content
The utility model provides a kind of underground and cuts rope device, for reducing remaining lifting rope in well, facilitates subsequent normal survey
Examination, wax removal and fishing.
To achieve the goals above, the utility model adopts the following technical solution:
The utility model provides a kind of underground and cuts rope device, hangs for shearing with what testing tool string taper rope socket end was connect
The cutter that rope device includes knife bar with the cutter head end for being mounted on knife bar is cut in rope, the underground；
The knife bar is provided with the cutter head end through the knife bar and the lifting rope channel of knife tail end；
The cutter head end of the knife bar is provided with the first inclined-plane, and the cutting end of the cutter is provided with the second inclined-plane, and described
First inclined-plane is in the same plane with second inclined-plane；
The cutter forms cutting edge, the cutting towards the surface in the lifting rope channel and second inclined-plane intersection
The junction of lifting rope and taper rope socket end is passed through in the moving region of sword.
Compared with prior art, underground provided by the utility model is cut rope device and is had the advantages that
Rope device is cut in underground provided by the utility model, connect when for shearing with the taper rope socket end of testing tool string
When lifting rope, lifting rope is arranged in the cutter head end of knife bar and the lifting rope channel of knife tail end, using self gravity under lifting rope
It falls, reaches taper rope socket end, at this point, the first inclined-plane of knife bar is contacted with the side at taper rope socket end, and cut rope device in underground
The inclined direction on the first inclined-plane of self gravitation effect lower edge continue to slide, and then drive the cutting edge of cutter by lifting rope and cone
Lifting rope is cut with lifting rope junction at taper rope socket end in the junction at shape rope socket end.With cut in the prior art in pithead position
Disconnected lifting rope is compared, and the amount of leaving of lifting rope in well is reduced, and reduces underground fish, facilitates subsequent proper testing, wax removal and salvaging
Operation.
Further, toroidal cavity is arranged in the knife tail end of the knife bar, and the toroidal cavity is connected to the lifting rope channel；
The side wall of the toroidal cavity is provided with multiple adjusting screws, and each adjusting screw is connected with sectorial block, each sectorial block
Medial surface surrounds through-hole, and the center of the through-hole is overlapped with the lifting rope channel center.Cut rope in underground with this structure
Device can be adjusted the lifting rope of different diameter specifications using the through-hole, lifting rope is made to be in the center in lifting rope channel always.
Further, the knife bar is equipped with the first mounting groove from the cutter head end to the knife tail end that extend from, and described the
One mounting groove is communicated with the lifting rope channel；Press strip and the cutter are installed, the cutter is located in first mounting groove
The cutter head end of first mounting groove.Rope device is cut in underground with this structure, the first peace that lifting rope can be arranged from knife bar
Tankage is pressed into lifting rope channel, realizes the Fast Installation of knife bar and lifting rope.
Further, the side wall of first mounting groove is provided at least two groups adjustment hole, each tune of every group of adjustment hole
Knothole is equipped with elastic cylindrical pin along the knife bar radial direction equidistantly distributed, the adjustment hole.Underground with this structure
Rope device is cut, installation site of the side relative to lifting rope channel of press strip and cutter towards lifting rope channel can be adjusted, limitation is hung
Amplitude of fluctuation of the rope in lifting rope channel, prevents knife bar cutting edge in dropping process from contacting with lifting rope, to prevent knife bar from existing
Lifting rope is cut in advance before not arriving at taper rope socket end.
Further, the tail portion of the cutter and one end of the press strip offset, and the cutter and the press strip pass through
The elastic cylindrical pin is mounted in first mounting groove.Rope device is cut in underground with this structure, can support in cutter
When cutting lifting rope up to taper rope socket end, by the active force generated between the second inclined-plane and taper rope socket end along cutter to press strip direction
It transmits and provides support force for cutter, prevent cutter from occurring to deviate and be broken in the installation direction of the first mounting groove.
Further, the side in the press strip towards lifting rope channel is cambered surface.Downhole hardware with this structure, can
Increase the contact area of press strip and lifting rope, enhances press strip to the anti-bias effect of lifting rope, effectively prevent hanging in cutter dropping process
Rope deviates towards cutting edge, in advance cuts lifting rope.
Further, the knife bar is round bar, and the center of the round bar is arranged in the lifting rope channel.With this structure
Underground cut rope device, knife bar is that symmetrical structure facilitates the bias eliminated between knife bar center and lifting rope, makes lifting rope always
Center in knife bar.
Further, the surface in the cutter towards the lifting rope channel is overlapped with the lifting rope channel inner surface.Have
Rope device is cut in the underground of this structure, and when knife bar touches taper rope socket end, cutter only needs to slide displacement slightly and can incite somebody to action
Lifting rope is cut, and guarantees that cutter is capable of the lifting rope of quick shearing lifting rope and testing tool string junction.
Further, the cutter head end of the knife bar and knife tail end have been uniformly arranged wiper block.Underground with this structure
Rope device is cut, when lifting rope channel is in the center of knife bar, the deviation between the center and lifting rope of knife bar is eliminated using wiper block
Amount, makes knife bar in dropping process, the center of knife bar is concentric with lifting rope always.
Further, the cutter head end of the knife bar and knife tail end are provided with slot, the wiper block by slot with it is described
Knife bar is detachably connected.Rope device is cut in underground with this structure, can according to knife bar in dropping process, the center of knife bar with
The deviation situation of lifting rope carries out replacement adjustment to wiper block.
In addition to the utility model described above solve the technical issues of, constitute technical solution technical characteristic and by
Outside beneficial effect brought by the technical characteristic of these technical solutions, underground provided by the utility model is cut rope device and be can solve
Other technologies problem, the other technical characteristics and these technical characteristic bring beneficial effects that include in technical solution, will
Further details of explanation is made in a specific embodiment.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be practical to this
New embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing be only that a part of the embodiment of the utility model is not paying creation for those of ordinary skill in the art
Property labour under the premise of, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram that rope device is cut in underground provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of knife bar in Fig. 1；
Fig. 3 is the structural schematic diagram of cutter in Fig. 1；
Fig. 4 is that cutter provided by the embodiment of the utility model cuts lifting rope schematic diagram；
Fig. 5 is sectional view along A-A in Fig. 1；
Fig. 6 is B-B direction cross-sectional view in Fig. 1；
Fig. 7 is the working state schematic representation that rope device is cut in underground provided by the embodiment of the utility model.
Description of symbols:
10- knife bar, the first inclined-plane 11-,
12- lifting rope channel, 13- toroidal cavity,
14- sectorial block, 15- through-hole,
The first mounting groove of 16-, 17- adjustment hole
20- cutter, the second inclined-plane 21-,
22- cutting edge, 30- press strip,
40- wiper block, 50- adjust screw,
60- elastic cylindrical pin, 70- testing tool string,
71- taper rope socket end, 72- lifting rope,
73- lubricator, 74- steel wire preventer,
75- well testing winch.
Specific embodiment
During the test often due to downhole conditions are complicated, and since testing tool string and borehole wall gap are smaller,
The phenomenon that testing tool string meets card is easy to appear during removing.Card is met in well to testing tool string, frequently in well head position
It sets place to cut the lifting rope for hanging testing tool string, will cause a large amount of lifting rope in this way and be retained in well, increase underground fish,
It makes troubles for subsequent proper testing, wax removal and waxing operation.
In view of the above-mentioned problems, the utility model embodiment, which provides a kind of underground, cuts rope device, which cuts rope device packet
It including knife bar and is mounted on the cutter at the cutter head end of knife bar, knife bar is equipped with the cutter head end through knife bar and the lifting rope channel of knife tail end,
And the cutter head end of knife bar is provided with the inclined surface coplanar with the cutter back side.When cutting rope device using underground, lifting rope is arranged in
In the cutter head end of knife bar and the lifting rope channel of knife tail end, is fallen, arrived along lifting rope using the self gravity that rope device is cut in underground
Lifting rope is cut up to taper rope socket end and in lifting rope and the junction at taper rope socket end.Compared in pithead position cutting lifting rope,
Reduce the amount of leaving of lifting rope in well, reduce underground fish, facilitates subsequent proper testing, wax removal and fishing.
In order to keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with this reality
With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously,
Described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is practical new based on this
Embodiment in type, those of ordinary skill in the art's all other reality obtained without creative labor
Example is applied, the range of the utility model protection is belonged to.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
Fig. 1 is the structural schematic diagram that rope device is cut in underground provided in this embodiment, and Fig. 2 is the structural representation of knife bar in Fig. 1
Figure, Fig. 3 are cutter structure schematic diagram in Fig. 1.As shown in Figure 1 to Figure 3, rope device, including knife are cut in underground provided in this embodiment
The cutter 20 of bar 10 and the cutter head end for being mounted on knife bar 10, wherein knife bar 10 is provided with cutter head end and knife tail through knife bar 10
The lifting rope channel 12 at end；The cutter head end of knife bar 10 is provided with the first inclined-plane 11, and the cutting end of cutter 20 is provided with the second inclined-plane 21,
And first inclined-plane 11 be in the same plane with the second inclined-plane 21.Surface and second inclined-plane 21 of the cutter 20 towards lifting rope channel 12
Intersection forms cutting edge 22, and the junction of lifting rope and taper rope socket end is passed through in the moving region of cutting edge 22.
When it is implemented, knife bar 10 can be a strip bar, knife bar 10 includes cutter head end and knife tail end；Cutter head end is used for
Cutter 20 is installed, knife tail end with fishing device for connecting.Knife bar 10 is internally provided with through the cutter head end of knife bar 10 and knife
The lifting rope channel 12 of tail end, lifting rope channel 12 are passed through for the lifting rope of testing tool string, and knife bar 10 is enable to fall along lifting rope.It can be with
Understand, lifting rope channel 12 can be circular through hole.
The cutter head end of knife bar 10 is provided with the first inclined-plane 11, it is to be understood that the end face at the cutter head end of knife bar 10 carries out
Cut the section of oblique ovalisation, as the first inclined-plane 11.The side of the inclined degree and taper rope socket end on the first inclined-plane 11
Inclined degree is related, since the side at taper rope socket end is a tapered surface, has certain tilt angle.Therefore when knife bar 10
When the side on the first inclined-plane 11 and the taper rope socket of testing tool string contacts, rope device is cut under self gravitation effect in underground, the
One inclined-plane 11 moves obliquely along the side at taper rope socket end, promotes cutter 20 by the lifting rope of lifting rope and taper rope socket end junction
It cuts.
It is understood that the inclined degree on the first inclined-plane 11 can be consistent with the side inclined degree at taper rope socket end,
The inclined degree with the side at taper rope socket end can also be more than or less than.In the present embodiment, the inclination journey on the first inclined-plane 11
Degree can be consistent with the side inclined degree at taper rope socket end, can make the side on the first inclined-plane 11 and taper rope socket end of knife bar 10
When contact, the first inclined-plane 11 of knife bar smoothly glides along the side at taper rope socket end.Illustratively, the inclination journey on the first inclined-plane 11
Degree: the tilt angle of the first inclined-plane 11 with respect to the horizontal plane is 45 °.
In the present embodiment, whole cutter 20 is in strip, and one end that cutter 20 is used to cut lifting rope is provided with the second inclined-plane
21, the second inclined-plane 21 is in the same plane with the first above-mentioned inclined-plane 11, and cutter 20 towards lifting rope channel 12 side with
Second inclined-plane, 21 intersection is provided with cutting edge 22.For convenience of understanding installation site of the cutting edge 22 relative to lifting rope channel 12,
It is detailed below.
Illustratively, as shown in Figure 4；Cutter 20 is provided with the second inclined-plane 21, side of the cutter 20 close to lifting rope channel 12
Second inclined-plane, 21 intersection is provided with cutting edge 22.Orientation according to Fig.4, the first inclined-plane 11 are located at lifting rope channel 12
Left side, the second inclined-plane 21 is located at the right side in lifting rope channel 12, and the first inclined-plane 11 is located at the lower left on the second inclined-plane 21, that is, cuts
Sword 22 is located at the side that lifting rope channel 12 deviates from glide direction C, and glide direction C and the side inclined direction at taper rope socket end are flat
Row.
When cutting rope device using above-mentioned underground for shearing the lifting rope connect with the testing tool series winding of underground chance card, lifting rope
It is arranged in the cutter head end of knife bar 10 and the lifting rope channel 12 of knife tail end, rope device is cut using self gravity along lifting rope in underground
It falls, reaches taper rope socket end.At this point, the first inclined-plane 11 of knife bar 10 is contacted with the side at taper rope socket end, and cut in underground
The inclined direction on the first inclined-plane of rope device self gravitation effect lower edge 11 slides, and then drives the cutting edge 22 of cutter 20 by hanging
The junction of rope and taper rope socket end, cuts lifting rope with lifting rope junction at taper rope socket end.With in the prior art in well head
Position is cut lifting rope and is compared, and reduces the amount of leaving of lifting rope in well, reduces underground fish, facilitates subsequent proper testing, wax removal
And fishing.
Further, since the second inclined-plane 21 and the first inclined-plane 11 are in same plane, so when cutter 20 and taper rope socket
When end in contact, first with taper rope socket end in contact, rope dress is cut in the underground that the first inclined-plane 11 of knife bar 10 carries on the first inclined-plane 11
The active force between taper rope socket end is set, cutter 20 is effectively prevent to be deformed under this active force and the damage of cutting edge 22
It is bad.
Fig. 5 is sectional view along A-A in Fig. 1；It please refers to shown in Fig. 1 and Fig. 5, in the above-described embodiments, the knife tail of knife bar 10
End setting toroidal cavity 13, toroidal cavity 13 are connected to lifting rope channel 12.The side wall of toroidal cavity 13 is provided with multiple adjusting spiral shells
Nail 50, each adjusting screw 50 is connected with sectorial block 14, and the medial surface of each sectorial block 14 surrounds through-hole 15, and through-hole 15 and lifting rope
Channel 12 is connected to, and the center of through-hole 15 is overlapped with the center in lifting rope channel 12.
In specific implementation, aperture is carried out to the knife tail end of knife bar 10 and forms toroidal cavity 13, setting in toroidal cavity 13
There are multiple identical sectorial blocks 14, multiple sectorial blocks 14 are circumferentially uniformly arranged along the inner wall of toroidal cavity 13, and multiple sectorial blocks
14 medial surface surrounds a through-hole 15.Through-hole 15 is connected to lifting rope channel 12 and in the center of through-hole 15 and lifting rope channel 12
The heart is overlapped, and passes through through-hole 15 and lifting rope channel 12 convenient for lifting rope.
The side wall of toroidal cavity 13 is provided with multiple threaded holes, is equipped in threaded hole and adjusts screw 50.Threaded hole setting
Internal screw thread and adjust the external screw thread of screw 50 and cooperate, rotation adjusts the changeable front end for adjusting screw 50 of screw 50 away from annular empty
The distance of the inner wall of chamber 13.
The outer surface of sectorial block 14 is provided with the blind hole (not shown) cooperated with adjusting screw 50.Adjust screw 50
Front end is inserted into the blind hole of sectorial block 14, and is adjusted screw 50 by rotation and adjusted the lateral surface of sectorial block 14 respectively away from annular
The distance of 13 inner surface of cavity, and then adjust the size in 15 aperture of through-hole of the medial surface formation of multiple sectorial blocks 14.Therefore benefit
With the circumferential through-hole 15 for being uniformly arranged the medial surface of multiple sectorial blocks 14 and surrounding of toroidal cavity 13, different diameter specifications are limited
Lifting rope and guarantees that lifting rope is in the center in lifting rope channel 12 always in the amplitude of fluctuation in lifting rope channel 12.
In the present embodiment, 4 identical sectorial blocks 14 are provided in toroidal cavity 13, and be connected on each sectorial block 14
One adjusting screw 50 adjusts screw 50 by rotation and adjusts the aperture that sectorial block 14 forms through-hole 15, to adapt to different-diameter
The lifting rope of specification passes through lifting rope channel 12, and limits lifting rope in the amplitude of fluctuation in lifting rope channel 12.
On the basis of above-described embodiment, the present embodiment has made further improvement to knife bar 10, illustratively, such as Fig. 6 institute
Show, knife bar 10 is equipped with the first mounting groove 16 extended from cutter head end to knife tail end, and the first mounting groove 16 is communicated with lifting rope channel 12.
First mounting groove 16 is equipped with press strip 30 and cutter 20, and cutter 20 is located at the cutter head end of the first mounting groove 16.
In specific implementation, knife bar 10 is provided with the first mounting groove 16 extended along its side from cutter head end to knife tail end, the
The groove width of one mounting groove 16 is consistent with the thickness of cutter 20 and press strip 30；And first mounting groove 16 by knife bar 10 appearance towards
Lifting rope channel 12 extends and is connected to lifting rope channel 12.
It is to be understood that the first mounting groove 16 can be configured through the cutter head end of knife bar 10 and knife tail end, lifting rope
It is threaded through in lifting rope channel 12 from the first mounting groove 16, and press strip 30 is installed in the first mounting groove 16, prevent lifting rope from lifting rope
It is deflected away from channel 12.
Press strip 30 can be divided into multistage according to the length of the first mounting groove 16, and multistage press strip 30 can be used and is mounted at equal intervals
It in first mounting groove 16, and need to be abutted with the knife tail end of cutter 20 close to the press strip 30 that cutter 20 is installed, realize pressure in this way
Item 30 in turn ensures stability of the cutter 20 during cutting lifting rope to the anti-bias performance of lifting rope.It can certainly be by press strip 30
It can also offset and be sequentially arranged in the first mounting groove 16 from beginning to end.
It is understood that the installation site of cutter 20 can be divided into two kinds of situations according to actual needs with full by cutter 20
The different purpose used of foot.The first situation is as follows；The cutting edge 22 of cutter 20 is selected to be arranged close to lifting rope channel 12, is cut
For knife 20 when lifting rope is cut at arrival taper rope socket end, need to only glide lesser displacement can be by lifting rope connected to it
The junction at taper rope socket end is cut off.Second situation is as follows: cutting rope device along lifting rope dropping process, to prevent from hanging in underground
Rope is contacted with the cutting edge 22 of cutter, and cutter 20 is caused to mention in the dropping process at the taper rope socket end for not arriving at testing tool string
Preceding the phenomenon that cutting lifting rope, therefore cutter 20 is arranged far from lifting rope.Two kinds of differences are described in detail below and use purpose
Under, installation site of the cutting edge 22 of cutter 20 relative to lifting rope channel 12.
When it is implemented, cutter 20 is towards lifting rope when the cutting edge 22 of cutter 20 is selected to be arranged close to lifting rope channel 12
The side in channel 12 is overlapped with 12 inner surface of lifting rope channel, makes the cutting edge 22 of cutter 20 close to the inner surface in lifting rope channel 12.
When knife bar 10 is moved along the side at taper rope socket end, only need the moving displacement of very little that can quickly cut lifting rope.
When the cutting edge 22 of cutter 20 is arranged far from lifting rope channel 12, side and pressure of the cutter 20 towards lifting rope channel 12
The side in item 30 towards lifting rope channel 12 is compared, press strip 30 towards lifting rope channel 12 side closer to lifting rope 12.Therefore it cuts
The side in knife 20 towards lifting rope channel 12 is deviated more from relative to press strip 30 in lifting rope, guarantees that the cutting edge 22 of cutter 20 is falling
It avoids contacting with lifting rope in the process, prevents from mentioning in the dropping process at the taper rope socket end for not arriving at testing tool string in cutter 20
It is preceding to cut lifting rope.
It is understood that the first mounting groove 16 can extend to toroidal cavity 13 from the cutter head end of knife bar 10 and lifting rope is logical
The junction in road 12, the through-hole 15 that multiple sectorial blocks 14 in toroidal cavity 13 surround occupy the lifting rope of a variety of different diameter specifications
In the center of knife bar 20, and by installing press strip 30 in the first mounting groove being connected to lifting rope channel 12, multiple diameter is limited
The lifting rope of specification is swung in lifting rope channel 12；Above scheme is suitable for being connected with the testing tool of the lifting rope of different diameter specifications
String shears lifting rope from the taper rope socket end of testing tool string when underground is met and blocked.
When testing tool string is when underground is met and blocked, by the one end for the lifting rope not connect with the taper rope socket end of testing tool string
It is threaded through in lifting rope channel 12 by the first mounting groove 16, and passes through the through-hole 15 surrounded by the medial surface of multiple sectorial blocks 14,
Adjustment lifting rope makes lifting rope be in the center of knife bar 10, installs press strip 30 after adjustment in the first mounting groove 16, on the one hand anti-
Only lifting rope is deflected away from out of lifting rope channel 12, while the cutting edge 22 of cutter 20 being avoided to avoid contacting with lifting rope in dropping process,
It prevents from advance cutting lifting rope in the dropping process at the taper rope socket end for not arriving at testing tool string in cutter 20.
It on the basis of the above embodiments, is realization cutter 20 and press strip 30 along the radially adjustable installation of knife bar 10, with suitable
The lifting rope of different diameter specifications is answered to be threaded through in lifting rope channel 12.The side wall of the first mounting groove 16 is provided at least in the present embodiment
Each adjustment hole of two groups of adjustment holes 17, every group of adjustment hole 17 is equipped with along the radial equidistantly distributed of knife bar 10, adjustment hole 17
Elastic cylindrical pin 60.
It is understood that elastic cylindrical pin 60 is a kind of hollow cylindrical body without a head made by elastic material, along it
Hole wall is axially grooved.When elastic cylindrical pin 60 is squeezed by external force, notch opening reduces, and aperture becomes smaller, and then can realize
Elasticity installation can revert to initial configuration when not squeezed by external force after elastic cylindrical pin 60 squeezes installation.Elasticity
Straight pin 60 has good elasticity and anti-shear ability, can hang again in the shearing of cutter 20 convenient for the installation of cutter 20 and press strip 30
During rope, prevents cutter 20 from deformation occur, influence cutting effect.
It is to be understood that every group of adjustment hole 17 includes three adjustment holes 17, and every group of 17 edge of adjustment hole in the present embodiment
The radial equidistantly distributed of knife bar 10, it is far and near by the center apart from lifting rope channel 12, the first adjustment hole, the can be divided into from the distant to the near
Two adjustment holes and third adjustment hole.Elastic cylindrical pin 60 can be selectively mounted to wherein according to the lifting rope of different size diameter
In a kind of adjustment hole, installation site of the press strip 30 towards 12 side of lifting rope channel is adjusted, and then effectively prevent lifting rope logical in lifting rope
It is swung in road 12.
When rope device is cut in underground to be used to shear the lifting rope of maximum specification, lifting rope channel 12 and maximum gauge specification
Lifting rope between gap it is smaller, therefore amplitude of fluctuation of the lifting rope of maximum gauge specification in lifting rope channel is smaller, may be selected
Elastic cylindrical pin 60 is mounted in the first adjustment hole, the gap between lifting rope and press strip 30 is observed, then does further adjustment pressure
Item 30 towards lifting rope channel 12 side installation site.Likewise, when rope device is cut for minimum diameter specification in underground
When lifting rope is sheared, the gap between lifting rope channel 12 and the lifting rope of minimum diameter specification is larger, therefore minimum diameter specification
Amplitude of fluctuation of the lifting rope in lifting rope channel it is larger, may be selected for elastic cylindrical pin 60 to be mounted in the first adjustment hole, observe
Gap between press strip 30 and lifting rope, then do the installation site for the side for further adjusting press strip 30 towards lifting rope channel 12.
In specific implementation, the aperture in lifting rope channel 12 is generally greater than the diameter of lifting rope.In order to be applicable in different diameter specifications
Lifting rope shear need, lifting rope channel 12 need to be according to the lifting rope Reference Design for the maximum gauge specification sheared, such case pair
When the lesser lifting rope of wherein diameter specifications is threaded through in lifting rope channel 12, amplitude of fluctuation of the lifting rope in lifting rope channel 12 compared with
Greatly.Therefore it needs to limit amplitude of fluctuation of the lifting rope in lifting rope channel 12, lifting rope is avoided to touch cutter 20 in dropping process
Cutting edge 22, furthermore be also beneficial to knife bar 10 along lifting rope fall.To avoid the lifting rope in lifting rope channel 12 from contacting cutter 20
Cutting edge 22 can also make cutting edge 22 deviate the inner surface in lifting rope channel 12 by the position of adjusting cutter 20.
After press strip 30 and cutter 20 select suitable installation site in the first mounting groove 16, using elastic cylindrical pin 60 from
The adjustment hole 17 of 10 side of knife bar is inserted through cutter 20 and press strip 30, and cutter 20 and press strip 30 are adjusted and are mounted on first
In mounting groove 16.Likewise, damaged cutter 20 and press strip can be replaced in time when cutter 20 and press strip 30 damage
30。
On the basis of the above embodiments, to further increase the anti-bias effect of press strip 30, press strip 30 is towards lifting rope channel
12 side is set as cambered surface, increases the contact area of press strip 30 and lifting rope, effectively prevent pressing in 20 dropping process of cutter
Deviate the side of item 30 towards cutting edge 22.
On the basis of the above embodiments, for enhance cutter 20 anti-shear ability and prevent cutter 20 in the first mounting groove
Sliding, the tail portion of cutter 20 and one end of press strip 30 offset in 16, and cutter 20 and press strip 30 are installed by elastic cylindrical pin 60
In the first mounting groove 16.
When cutter 20 is slided along the side at taper rope socket end, being cut due to underground can be generated under rope device self gravitation effect
The active force on cutter 20 is acted on, certain elastic deformation may occur for cutter 20, by one end of press strip 30 and cutter 20
Tail portion abut, the elastic deformation on cutter 20 effectively can be passed into press strip 30, avoid cutter 20 due to elastic deformation send out
Life fractures and deviates.
In above-described embodiment, knife bar 10 selects a round bar, and the center of round bar is arranged in lifting rope channel 12.
For example, knife bar 10 is strip round bar, it is provided with lifting rope channel 12 in its center.When lifting rope channel 12 is in knife bar
When 10 center, the cutter head end of knife bar 10 and knife tail end are respectively arranged with wiper block 40.Wiper block 40 is for eliminating knife bar 10
Bias between center and lifting rope guarantees knife bar 10 along lifting rope dropping process, and the center of knife bar 10 and lifting rope are concentric.
On the basis of the above embodiments, for convenience of the bias between the center and lifting rope for eliminating knife bar 10, knife bar 10
Cutter head end and knife tail end be provided with slot, wiper block 40 is provided with the convex block with slot cooperation, and wiper block 40 passes through convex block peace
In the slot of knife bar 10, realizes wiper block 40 and knife bar 10 is detachably installed.It is understood that eliminate knife bar 10
Center and lifting rope between bias, can by change wiper block 40 shape and installation site, make the center of knife bar 10
It is concentric with lifting rope.
Fig. 7 is the working state schematic representation that rope device is cut in underground provided in this embodiment, as shown in Figure 7；In the present embodiment
In, when carrying out well testing test jobs, lifting rope 72 is preferably wirerope.When testing tool string 70 it is stuck in well can not on put
When putting, dismantle the connecting rod between the steel wire preventer 74 and lubricator 73 of production tree, by lifting rope 72 not with test work
One end that the taper rope socket end 71 of tool string 70 connects is pulled out out of lubricator 73, then the lifting rope 72 at this end is passed through the first mounting groove
16 are threaded through in lifting rope channel 12 and pass through the through-hole surrounded by multiple 14 medial surfaces of sectorial block being arranged in toroidal cavity 13
15.Size by adjusting 15 aperture of through-hole makes lifting rope 72 be located at the center in lifting rope channel 12；After adjustment, by elastic cylinder
Pin 60 is inserted into the adjustment hole 17 in the first mounting groove 16, and passes through cutter 20 and press strip 30, thus by cutter 20 and press strip 30
It is adjustable to be mounted in knife bar 10.Underground is cut rope device and is fallen centered on wirerope using self gravity, and testing tool is reached
The position at the taper rope socket end 71 of string 70.
When the side at the first inclined-plane 11 of knife bar 10 contact taper rope socket end 71, since the weight of rope device itself is cut in underground
Power forms component along the side at taper rope socket end 71, and knife bar 10 drives cutter 20 oblique along the first inclined-plane 11 under the action of this component
It moves downward, and then makes the cutting edge 22 of knife bar 20 by the junction of lifting rope 72 and taper rope socket end 71, at taper rope socket end
Wirerope is cut at 71.The steel wire for being retained in well inner conical rope socket end 71 to well head section is finally pulled out by well testing winch 75 again
Rope reduces underground fish, facilitates later period proper testing, wax removal and fishing.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. rope device is cut in a kind of underground, for shearing the lifting rope connecting with testing tool string taper rope socket end, which is characterized in that institute
It states underground and cuts the cutter that rope device includes knife bar with the cutter head end for being mounted on knife bar；
The knife bar is provided with the cutter head end through the knife bar and the lifting rope channel of knife tail end；
The cutter head end of the knife bar is provided with the first inclined-plane, and the cutting end of the cutter is provided with the second inclined-plane, and described first
Inclined-plane is in the same plane with second inclined-plane；
The cutter forms cutting edge towards the surface in the lifting rope channel and second inclined-plane intersection, the cutting edge
The junction of lifting rope and taper rope socket end is passed through in moving region.
2. rope device is cut in underground according to claim 1, which is characterized in that the knife tail end setting annular of the knife bar is empty
Chamber, the toroidal cavity are connected to the lifting rope channel；
The side wall of the toroidal cavity is provided with multiple adjusting screws, and each adjusting screw is connected with sectorial block, each sector
The medial surface of block surrounds through-hole, and the center of the through-hole is overlapped with the lifting rope channel center.
3. rope device is cut in underground according to claim 1, which is characterized in that the knife bar is equipped with from the cutter head end to institute
The first mounting groove of knife tail end extension is stated, first mounting groove is communicated with the lifting rope channel；
Press strip and the cutter are installed, the cutter is located at the cutter head end of first mounting groove in first mounting groove.
4. rope device is cut in underground according to claim 3, which is characterized in that the side wall of first mounting groove be provided with to
Few two groups of adjustment holes, each adjustment hole of every group of adjustment hole are installed along the knife bar radial direction equidistantly distributed, the adjustment hole
Flexible straight pin.
5. rope device is cut in underground according to claim 4, which is characterized in that the tail portion of the cutter and the one of the press strip
End offsets, and the cutter and the press strip pass through the elastic cylindrical pin and be mounted in first mounting groove.
6. rope device is cut in underground according to claim 5, which is characterized in that side of the press strip towards the lifting rope channel
Face is cambered surface.
7. rope device is cut in underground according to claim 1, which is characterized in that the knife bar is round bar, the lifting rope channel
The center of the round bar is set.
8. rope device is cut in underground according to claim 7, which is characterized in that table of the cutter towards the lifting rope channel
Face is overlapped with the lifting rope channel inner surface.
9. rope device is cut in underground according to claim 7, which is characterized in that the cutter head end of the knife bar and knife tail end are uniformly distributed
It is provided with wiper block.
10. rope device is cut in underground according to claim 9, which is characterized in that the cutter head end of the knife bar and knife tail end are set
It is equipped with slot, the wiper block is detachably connected by slot and the knife bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615181.2U CN208330248U (en) | 2018-04-27 | 2018-04-27 | Underground rope shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820615181.2U CN208330248U (en) | 2018-04-27 | 2018-04-27 | Underground rope shearing device |
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| CN208330248U true CN208330248U (en) | 2019-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
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2018
- 2018-04-27 CN CN201820615181.2U patent/CN208330248U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
| CN110359873B (en) * | 2019-07-05 | 2021-11-02 | 中国石油天然气集团有限公司 | Underground short cable cutter and using method thereof |
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