CN205689182U

CN205689182U - Spiral swab

Info

Publication number: CN205689182U
Application number: CN201620606282.4U
Authority: CN
Inventors: 康玉宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-14
Filing date: 2016-06-14
Publication date: 2016-11-16
Anticipated expiration: 2026-06-14

Abstract

The utility model discloses a kind of spiral swab, main on hang set, lower hang set and hang the connecting rod that set is connected form with upper and lower respectively, expanding sheath is fixedly connected in connecting rod；Sliding sleeve is placed in outside expanding sheath through connecting rod and expanding sheath；Rubber helical plunger is placed in outside expanding sheath through connecting rod and expanding sheath, and is positioned at above sliding sleeve, and described rubber helical plunger is overall to be formed by helix cutting；Spiral swab also includes a runner that can open and close, and runner is formed with upper suspension set, connecting rod, expanding sheath and sliding sleeve by rubber helical plunger.The spiral swab of this utility model has the advantage that entire length is little, consumable accessory utilization rate high and replacing is conveniently suitable for casing deformation well involving swab simultaneously.

Description

Spiral swab

Technical field

This utility model relates to a kind of involving swab instrument, especially mainly by upper suspension set, lower suspension set and respectively at upper and lower Hang the spiral swab of the connecting rod that set connects.

Background technology

For high-solidifiability oil well or abandoned well, involving swab is most economical production technology, current down-hole involving swab instrument institute There is a common weakness in the swab used, when i.e. running into casing deformation well, swab is difficult to lower to depth desired, and Consumable accessory i.e. rubber plunger can not get sufficiently utilizing, and needs often to change, thus result in can the former and unnecessary waste of material, Have impact on working performance.

Summary of the invention

The purpose of this utility model is to provide that a kind of entire length is little, consumable accessory utilization rate high and changes and convenient is suitable for simultaneously The spiral swab of casing deformation well involving swab.

For achieving the above object, the spiral swab of this utility model is mainly hung set, lower suspension set and difference by upper Hanging, with upper and lower, the connecting rod composition that set is connected, expanding sheath is fixedly connected in connecting rod；Sliding sleeve passes connecting rod and expanding sheath It is placed in outside expanding sheath；Rubber helical plunger is placed in outside expanding sheath through connecting rod and expanding sheath, and is positioned at above sliding sleeve, Described rubber helical plunger is overall to be formed by helix cutting；Described spiral swab also includes that one can be opened and close The runner closed, described runner is formed with upper suspension set, connecting rod, expanding sheath and sliding sleeve by rubber helical plunger.

Upper suspension is provided with circular hole bottom set, upper suspension set lower side is provided with the notch identical with bottom circular aperture, described circle Hole and notch form suspension set runner.

Described connecting rod top is provided with flat-shaped runner, and described flat-shaped runner section is deeply upper to hang in set runner, forms one The individual runner communicated with each other.

Expanding sheath top is truncated cone-shaped, and bottom is connected with connecting rod by insurance pin.

Rubber helical plunger body has a truncated cone-shaped through hole matched with expanding sheath truncated cone-shaped top, the two phase interworking Closing and form a runner opened and closed, the truncated cone-shaped through hole of described rubber helical plunger body is flat-shaped with connecting rod top Runner leaves gap.

Having the through hole of a hollow, sliding sleeve outer circumference to be provided with slotted eye inside sliding sleeve, described slotted eye is formed with the through hole of hollow Sliding sleeve runner.

Spiral swab also includes being arranged on sliding sleeve inside and being placed in the adjusting nut outside expanding sheath by screw thread, Described adjusting nut and sliding sleeve endoporus preferably leave certain interval.

Rubber helical plunger base is provided with outer chamfering, and sliding sleeve top is provided with matches with rubber helical plunger base chamfering Interior chamfering.

It is provided with slotted eye at the flat-shaped runner in described connecting rod top.

Spiral swab at least includes two runners that can open and close.

Use the spiral swab of this utility model match with sleeve pipe operation time, spiral swab is at weight belt Run downwards by sleeve pipe under Dong, when contact liquid level time, make under the effect of fluid column rubber helical plunger and sliding sleeve relative under Move in stroke directions, because of rubber helical plunger in a state of nature, so rubber helical plunger outer diameter is much smaller than casing inner diameter, this Time the runner of spiral swab and rubber helical plunger open with the runner that internal surface of sleeve pipe is formed simultaneously, therefore make spiral Swab can assign desired depth smoothly when casing deformation well involving swab.Spiral swab passes through steel wire rope at dredging vehicle Move upward under traction, owing to, under the effect of centrifugal force and fluid column, making rubber helical plunger and sliding sleeve be displaced downwardly to regulate spiral shell Female upper end, on the one hand rubber helical plunger is increased by expanding sheath top round platform diameter in the case is affected, on the other hand By the extruding force of fluid column, thus result in the expansion of rubber helical diameter of plunger, in making rubber helical plunger outer diameter and sleeve pipe Footpath is identical, the well liquid of rubber helical plunger upper part can be proposed well head in sealing state.Owing to rubber helical plunger is overall Being formed by helix cutting, therefore installation and removal rubber helical plunger is very convenient, need not dismantle other parts, improve Work efficiency.The rubber helical plunger outer diameter that works long hours can produce abrasion, causes itself and casing inner diameter excesssive gap, during involving swab Cannot realize sealing, now by adjusting nut regulation rubber helical plunger in the position on expanding sheath top, and then adjust rubber Gap between spiral plunger and sleeve pipe so that consumable accessory utilization rate is greatly improved.Spiral swab is relative to split-type For the swabs such as swab, overall dimensions is substantially reduced, it is thus possible to be applied in lubricator, once occurs blowout during operation Head valve can be closed rapidly, ensured the safety produced.

Accompanying drawing explanation

Fig. 1 is spiral swab structural representation.

Fig. 2 is spiral swab down stroke schematic diagram.

Fig. 3 is spiral swab up stroke schematic diagram.

Fig. 4 is rubber helical piston structure schematic diagram.

Fig. 5 is expanding sheath structural representation.

Fig. 6 is shift sleeve structure schematic diagram.

Fig. 7 is upper suspension nested structure schematic diagram.

Fig. 8 is the A-A view of Fig. 7.

Fig. 9 is connecting rod structural representation.

Figure 10 is the left view of Fig. 9.

Lower suspension set 1, sliding sleeve 2, insurance pin 3, expanding sheath 4, adjusting nut 5, rubber helical plunger 6, connecting rod 7, on Hang set 8, flat-shaped runner 9, sleeve pipe 10, runner hole 11.

Detailed description of the invention

With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.

Spiral swab shown in Fig. 1 to Fig. 8, by upper suspension set 8, lower hang set 1 and respectively with upper hang set 8 and under The connecting rod 7 hanging set 1 connection forms, and expanding sheath 4 is fixedly connected in connecting rod 7；Sliding sleeve 2 is through connecting rod 7 and expanding sheath 4 It is placed in outside expanding sheath 4；Rubber helical plunger 6 is placed in outside expanding sheath 4 through connecting rod 7 and expanding sheath 4, and is positioned at sliding sleeve Above in the of 2, described rubber helical plunger 6 entirety is formed by helix cutting, beneficially the quick expansion of rubber helical plunger 6 external diameter , also allow for installation and removal；Described spiral swab also includes a runner that can open and close, described runner Formed with upper suspension set 8, connecting rod 7, expanding sheath 4 and sliding sleeve 2 by rubber helical plunger 6.

Upper suspension is provided with circular hole bottom set 8, and upper suspension is overlapped 8 lower side and is provided with the notch identical with bottom circular aperture, described Circular hole and notch form suspension set runner.

Described connecting rod 7 top is provided with flat-shaped runner 9, and described flat-shaped runner 9 part is deeply upper to hang in set 8 runners, shape Become a runner communicated with each other.It is additionally provided with runner hole 11 to realize quickly and completely sealing at flat-shaped runner 9.

Expanding sheath 4 top is truncated cone-shaped, and bottom is connected with connecting rod 7 by insurance pin 3.

Rubber helical plunger 6 is internal a truncated cone-shaped through hole matched with expanding sheath 4 truncated cone-shaped top, and the two is mutual Cooperatively form a runner opened and closed, the truncated cone-shaped through hole within described rubber helical plunger 6 and connecting rod 7 top Flat-shaped runner 9 leaves gap.

The internal through hole having a hollow of sliding sleeve 2, sliding sleeve 2 outer circumference is provided with the through hole shape of slotted eye, described slotted eye and hollow Become sliding sleeve runner.

Spiral swab also includes being arranged on sliding sleeve 2 inside and being placed in the regulation spiral shell outside expanding sheath 4 by screw thread Female 5, between preferably leaving necessarily for adjusting nut 5 described in the runner of more preferable opening spiral swab and sliding sleeve 2 endoporus Gap.

Being provided with outer chamfering bottom rubber helical plunger 6, sliding sleeve 2 top is provided with and matches with rubber helical plunger 6 bottom chamfer The interior chamfering closed.

In order to realize quickly and completely sealing, spiral swab at least includes two streams that can open and close Road.

When dredging vehicle steel wire rope is connected with the upper set 8 that hangs by interface unit, and the lower set 1 that hangs is connected with counterweight, is formed for existing The involving swab process system of field operation complete set.

This system is when down stroke, and dredging vehicle release steel wire rope, spiral swab passes through sleeve pipe under counterweight drives 10 run downwards, when contacting liquid level, make rubber helical plunger 6 and sliding sleeve 2 relative to down stroke direction under the effect of fluid column Upper shifting, because of rubber helical plunger 6 in a state of nature, so rubber helical plunger 6 external diameter is much smaller than sleeve pipe 10 internal diameter, now spiral shell Runner and the rubber helical plunger 6 of rotating swab are opened with the runner that sleeve pipe 10 inwall is formed simultaneously, therefore make spiral Swab can assign desired depth smoothly when casing deformation well involving swab.

This system is when up stroke, and spiral swab is moved upward under the traction of dredging vehicle by steel wire rope, by Under the effect at centrifugal force and fluid column, rubber helical plunger 6 and sliding sleeve 2 is made to be displaced downwardly to the upper end of adjusting nut 5, in these feelings Under condition, rubber helical plunger 6 one aspect is increased by expanding sheath 4 lower diameter is affected, on the other hand by the extruding force of fluid column, because of This causes the expansion of rubber helical plunger 6 diameter, to making rubber helical plunger 6 external diameter identical, in sealing with sleeve pipe 10 internal diameter State and reach the well liquid on rubber helical plunger 6 top is proposed well head.Helical cuts on rubber helical plunger 6 can make it Diameter expands rapidly.

When this system card well situation occurs at up stroke, Ka Jingli is successively through rubber helical plunger 6, sliding sleeve 2, regulation spiral shell Mother 5, expanding sheath 4 finally pass to insure on pin 3, make insurance pin 3 be cut off, cause above-mentioned part to be snapped down to lower suspension set 1 On, therefore make to let out under well liquid, reach the purpose of unfreezing.

Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to Above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, without departing from this utility model objective Within the various changes made under premise should be included in protection domain of the present utility model.

Claims

1. a spiral swab, is mainly hung set, lower suspension set by upper and hung, with upper and lower, the connection that set is connected respectively Bar forms, it is characterised in that: expanding sheath is fixedly connected in connecting rod；Sliding sleeve is placed in outside expanding sheath through connecting rod and expanding sheath Side；Rubber helical plunger is placed in outside expanding sheath through connecting rod and expanding sheath, and is positioned at above sliding sleeve, described rubber helical Plunger is overall to be formed by helix cutting；Described spiral swab also includes a runner that can open and close, institute State runner to be formed with upper suspension set, connecting rod, expanding sheath and sliding sleeve by rubber helical plunger.

Spiral swab the most according to claim 1, it is characterised in that: upper suspension is provided with circular hole bottom set, upper outstanding Hanging sleeve lower side is provided with the notch identical with bottom circular aperture, and described circular hole and notch form suspension set runner.

Spiral swab the most according to claim 1, it is characterised in that: described connecting rod top is provided with flat-shaped stream Road, described flat-shaped runner section is deeply upper to hang in set runner, forms a runner communicated with each other.

Spiral swab the most according to claim 1, it is characterised in that: expanding sheath top is truncated cone-shaped, and bottom leads to Cross insurance pin to be connected with connecting rod.

Spiral swab the most according to claim 1, it is characterised in that: rubber helical plunger body has one and expands Opening the truncated cone-shaped through hole matched in set truncated cone-shaped top, the two complements each other to form a runner opened and closed, described rubber Truncated cone-shaped through hole within glue spiral plunger leaves gap with the flat-shaped runner on connecting rod top.

Spiral swab the most according to claim 1, it is characterised in that: there is the through hole of a hollow inside sliding sleeve, sliding Set outer circumference is provided with slotted eye, and described slotted eye forms sliding sleeve runner with the through hole of hollow.

7. according to the spiral swab described in claim any one of claim 1-6, it is characterised in that: spirally drag for Barrel oil pump also includes being arranged on sliding sleeve inside and being placed in the adjusting nut outside expanding sheath by screw thread.

8. according to the spiral swab described in claim any one of claim 1-6, it is characterised in that: rubber helical Plunger base is provided with outer chamfering, and sliding sleeve top is provided with the interior chamfering matched with rubber helical plunger base chamfering.

9. according to the spiral swab described in claim any one of claim 1-6, it is characterised in that: described connection It is provided with slotted eye at the flat-shaped runner in bar top.

10. according to the spiral swab described in claim any one of claim 1-6, it is characterised in that: spiral Swab at least includes two runners that can open and close.