CN206299350U - Horizontal well completion tubular pile is oriented to resistance absorber - Google Patents
Horizontal well completion tubular pile is oriented to resistance absorber Download PDFInfo
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- CN206299350U CN206299350U CN201621397475.XU CN201621397475U CN206299350U CN 206299350 U CN206299350 U CN 206299350U CN 201621397475 U CN201621397475 U CN 201621397475U CN 206299350 U CN206299350 U CN 206299350U
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Abstract
The utility model is that horizontal well completion tubular pile is oriented to resistance absorber, is related to the kit of completion practice tubing string in oil field development, for guiding completion tubular column to go into the well.The outer top of central tube (2) of the present utility model is cased with spring (3), bottom is cased with rotation inner cylinder (5), and torque transmission mechanism is provided with central tube (2) outer wall middle part between central tube (2) and rotation inner cylinder (5)；The outer wall of rotation inner cylinder (5) is provided with oblique slot；Central tube (2) lower end connects ball seat (7) and pressure cap (8)；Rotation outer barrel (4) is enclosed within rotation inner cylinder (5) outward；Stretch into the oblique groove of rotation inner cylinder (5) guide pad (6) the inner；Rotation outer barrel (4) top profile is cylindrical and is provided with oblique projection, and bottom is in coniform；The spherical portion of bulb (9) is arranged in the hemispherical inner groovy that ball seat (7) and pressure cap (8) are formed；Bulb (9) connects seeker (10) below.Because this instrument can bore milling well and use gimbal structure, completion tubular column is set to be easier to go into the well.
Description
Technical field
The utility model is related to the kit of completion practice tubing string in oil field development, more particularly to for guiding completion
A kind of steering tool that tubing string is gone into the well, the instrument is connected to completion tubular column bottom, can guide tubing string and well can be carried out
A small amount of brill milling treatment, such that it is able to reduce enter under completion tubular column during the mill resistance surge that causes by hole anomaly ask
Topic.
Background technology
During horizontal well completion tubular pile enters under, because the irregular reason of well track causes under completion tubular column less than predetermined
The situation of position happens occasionally.Particularly loose sand oil accumulation, frequently encounters the suddenly big or suddenly small situation of well, easily makes completion tubular
Post increases meets frictional resistance.Drifting technique before the method for the treatment of problems is mainly by entering under completion tubular column at present is processed
Well, risk not in place under reduction completion tubular column.Without any method if being hampered in entering way under completion tubular column, can only rise out
Lower tubular column or on the spot completion again after completion tubular column drifting.No matter unnecessary economic loss can all be brought using that method.
The content of the invention
In order to solve the above technical problems, the utility model provides horizontal well completion tubular pile is oriented to resistance absorber, the instrument connects
Completion tubular column bottom is connected on, tubing string can be guided and a small amount of brill milling treatment can be carried out to well, such that it is able to reduce completion
The mill resistance proliferation issues caused by hole anomaly during entering under tubing string, it is deep less than design under completion tubular column so as to reduce
Spend or be unable to the risk of natural completion.
The technical solution of the utility model is：Horizontal well completion tubular pile is oriented to resistance absorber, and top connection is connected with central tube, in
The outer top of heart pipe is cased with spring, and bottom is cased with rotating inner cylinder, is set in the middle part of the pipe outer wall of center between central tube and rotation inner cylinder
There is torque transmission mechanism；The outer wall for rotating inner cylinder is provided with oblique groove；Central tube lower end connects ball seat；Rotation outer sleeve is in spring, rotation
Turn outside inner cylinder and ball seat；Guide pad radially installed, its outer end is fixed on rotation outer barrel, and the oblique recessed of rotation inner cylinder is stretched into the inner
In groove；Rotation outer barrel top profile is cylindrical and is provided with oblique projection, and bottom is in coniform；Ball seat lower end have one it is hemispherical
Inner groovy, the spherical portion of bulb is arranged in the hemispherical inner groovy of ball seat, and pressure cap is connected with ball seat, and pressure cap is in contact with bulb
Position be also spherical arc, the lower edge of pressure cap less than the spherical maximum gauge of bulb at；Seeker is connected below bulb.
Compared with prior art, the beneficial effects of the utility model are：Horizontal well completion tubular pile of the invention is oriented to drag reduction
Utensil is acted on of both having, and one is, front tool is provided with the universal joint being made up of bulb, and completion tubular column can be guided to pass through
The well section that well track is changed greatly；Two is that the auxiliary oblique projection for being welded with hard alloy is provided with rotation outer barrel, in rotation
Inner tank theca has opened up oblique slot, and the guide pad being fixed on rotation outer barrel can be slided in oblique groove, by above putting
Put tubing string so that rotation outer barrel rotates against inner cylinder and rotates in a circumferential direction, and a small amount of brill milling is carried out to well such that it is able to realize reducing
The purpose of fashionable resistance under completion tubular column.
Brief description of the drawings
The present invention is above simply described, one is entered with reference next to the drawing for describing specific examples below of the invention
Step, in detail the narration present invention.These drawings only describe some typical embodiments of the invention, therefore are not construed as limit
The scope of the present invention processed.In these drawings：
Fig. 1 is the structural representation that horizontal well completion tubular pile is oriented to resistance absorber.
Fig. 2 is the sectional drawing of the preferred embodiment one at A-A in Fig. 1.
Fig. 3 be Fig. 1 be the preferred embodiment one at B-B sectional drawing.
Fig. 4 is the sectional drawing of the preferred embodiment two at A-A in Fig. 1.
Fig. 5 be Fig. 1 be the preferred embodiment two at B-B sectional drawing.
Fig. 6 is the expansion plan of the outer surface of part 5 in Fig. 1.
Fig. 7 is the sectional drawing of part 5 at C-C in Fig. 6.
Fig. 8 is the expansion plan of the outer surface of part 4 in Fig. 1.
Fig. 9 is the sectional drawing of part 4 at D-D in Fig. 8.
Specific embodiment
1 pair of horizontal well completion tubular pile of the invention is oriented to resistance absorber and is described in detail below in conjunction with the accompanying drawings.Top connection 1 with
Central tube 2 is connected, and the outer top of central tube 2 is cased with spring 3, and bottom is cased with rotating inner cylinder 5, between central tube 2 and rotation inner cylinder 5
Torque transmission mechanism is provided with the outer wall of central tube 2 middle part；The outer wall for rotating inner cylinder 5 is provided with oblique slot；The lower end of central tube 2 connects ball seat 7；
Rotation outer barrel 4 is enclosed within outside spring 3, rotation inner cylinder 5 and ball seat 7；The radially installed of guide pad 6, its outer end is fixed on rotation outer barrel 4
On, the inner is stretched into the oblique groove of rotation inner cylinder 5；The rotation top profile of outer barrel 4 is cylindrical and is provided with oblique projection, bottom
In coniform；There is a hemispherical inner groovy lower end of ball seat 7, and the spherical portion of bulb 9 is arranged on the hemispherical inner groovy of ball seat 7
Interior, pressure cap 8 is connected with ball seat 7, and the position that pressure cap 8 is in contact with bulb 9 is also spherical arc, and the lower edge of pressure cap 8 is less than ball
At first 9 spherical maximum gauge；Bulb connects seeker 10 below 9.
With shown in Fig. 3, this is a kind of straight tooth-shaped structure to described torque transmission mechanism as Fig. 2, is in the middle part periphery of central tube 2
Axial internal tooth is arranged at axial external tooth, the endoporus top for rotating inner cylinder 5, and external tooth can be intermeshed with internal tooth.
Under state shown in Fig. 1, the external tooth of described torque transmission mechanism does not mesh together with internal tooth.When well subtracts
Small, when the guiding resistance absorber of completion tubular column front end is hampered, rotation outer barrel 4 will be subject to a upward thrust, and guide pad 6 will
Rotation inner cylinder 5 is promoted to move upwards, together with this moment external tooth has been engaged on internal tooth.
As shown in Fig. 4 and Fig. 5, this is another preferred embodiment of described torque transmission mechanism.Described torque transmission mechanism is key
Torsion pass structure, the axial key-like projection of one or more is set in the middle part periphery of central tube 2, and the endoporus top for rotating inner cylinder 5 is provided with axle
To keyway, keyway is engaged with key-like projection.Certain this structure type being engaged can also be designed in turn, Ji centers
The middle part periphery of pipe 2 sets the axial keyway of one or more, and the endoporus top for rotating inner cylinder 5 is provided with axial key-like projection.Similarly, exist
Under state shown in Fig. 1, the key-like projection of described torque transmission mechanism is not combined together with keyway.It is complete when well reduces
When the guiding resistance absorber of well casing post front end is hampered, rotation outer barrel 4 will be subject to a upward thrust, and guide pad 6 will be promoted
Rotation inner cylinder 5 moves upwards, and at this moment key-like projection and keyway just coordinate together with.
In order that horizontal well completion tubular pile of the invention is oriented to resistance absorber and has the effect for preferably boring milling well, such as Fig. 8
Closed with shown in Fig. 9, being provided with oblique projection as depicted and being welded with hard on projection upper berth in the rotation upper periphery of outer barrel 4
Gold, lower cone shape periphery also spreads and is welded with hard alloy.
Completion tubular column is difficult to rotate or does not allow to rotate, in order that instrument of the invention can be bored
Milling well, as shown in Figure 6 and Figure 7, oblique groove is provided with the periphery of rotation inner cylinder 5, and guide pad 6 can be along the oblique groove
Slide, actually the spatial form of the oblique groove is similar to rectangle pitch thread.The bar number of oblique groove is more than 2, best
It is 3.The quantity of guide pad 6 is identical with the quantity of oblique groove.
When the guiding resistance absorber of completion tubular column front end is hampered, rotation outer barrel 4 will be subject to a upward thrust, guide pad
6 will promote rotation inner cylinder 5 to move upwards, together with this moment external tooth has been engaged on internal tooth.Central tube 2 is descending but can not rotate,
By torque transmission mechanism, rotation inner cylinder 5 also follows central tube 2 descending together and can not rotate, and rotates resistance of the outer barrel 4 in well
Under have holding shaft motionless trend upwards, at this moment, guide pad 6 is slided relative to rotation inner cylinder 5, is producing the same of axial displacement
When, a moment of torsion for circumference is produced, promote rotation outer barrel 4 to make circumference rotation, auxiliary by its periphery is welded with the oblique of hard alloy
Brill milling is carried out to well to raised.
Completion tubular column is above carried, under the thrust of spring 3, rotation inner cylinder 5 is descending with respect to central tube 2, and torque transmission mechanism is disengaged, rotation
Turn inner cylinder 5 makes guide pad 6 return to state as shown in Figure 1 relative to the rotation of central tube 2, such that it is able to start to bore milling action next time.
It should be noted that in order to prevent the diagonally groove upwards during motion from the upper of oblique groove of guide pad 6
Portion skids off, and rotates distance of the upper end of outer barrel 4 away from the upper end of top connection 1 and should be less than oblique groove axial length, while in connection originally
During the instrument of invention, the diameter instrument big compared with the external diameter of top connection 1 should be connected at an upper portion thereof.
Guiding of the resistance absorber to completion tubular column during going into the well is oriented in order to improve horizontal well completion tubular pile of the invention
Effect, the bottom of seeker 10 can be designed as hemispherical, part elliptical shape or coniform.
Embodiment as herein described is only exemplary embodiments, but is not limited only to these embodiments, those skilled in the art
Member can make modification under without departing from spirit of the invention and enlightenment.Aspect disclosed herein there may be many changes,
Combination and modification, and be within, therefore, protection domain is not limited only to explanation above, but according to right
It is required that to define, protection domain includes all equivalents of the target of claim.
Claims (8)
1. horizontal well completion tubular pile is oriented to resistance absorber, it is characterised in that top connection (1) is connected with central tube (2), central tube (2)
Outer top is cased with spring (3), and bottom is cased with rotation inner cylinder (5), in central tube (2) between central tube (2) and rotation inner cylinder (5)
Outer wall middle part is provided with torque transmission mechanism；The outer wall of rotation inner cylinder (5) is provided with oblique groove；Central tube (2) lower end connects ball seat (7)；
Rotation outer barrel (4) is enclosed within spring (3), rotation inner cylinder (5) and ball seat (7) outward；Guide pad (6) radially installed, its outer end is fixed on
In rotation outer barrel (4), the inner is stretched into the oblique groove of rotation inner cylinder (5)；Rotation outer barrel (4) top profile is cylindrical and sets
There is oblique projection, bottom is in coniform；The spherical portion that there is a hemispherical inner groovy, bulb (9) ball seat (7) lower end is arranged on ball
In the hemispherical inner groovy of seat (7), pressure cap (8) is connected with ball seat (7), and the position that pressure cap (8) is in contact with bulb (9) is also ball
Shape cambered surface, the lower edge of pressure cap (8) is less than at the spherical maximum gauge of bulb (9)；Bulb (9) connects seeker (10) below.
2. horizontal well completion tubular pile according to claim 1 is oriented to resistance absorber, it is characterised in that described torque transmission mechanism is
Straight tooth-shaped structure, is axial external tooth at the periphery middle part of central tube (2), and axial internal tooth is arranged at the endoporus top of rotation inner cylinder (5), outward
Tooth is intermeshed with internal tooth.
3. horizontal well completion tubular pile according to claim 1 is oriented to resistance absorber, it is characterised in that described torque transmission mechanism is
Key torsion pass structure, the axial key-like projection of one or more is set in central tube (2) middle part periphery, and the endoporus of rotation inner cylinder (5) is provided with
Axial keyway, keyway is engaged with key-like projection.
4. horizontal well completion tubular pile according to claim 1 is oriented to resistance absorber, it is characterised in that described rotation inner cylinder
(5) outer wall is provided with more than 2 oblique grooves.
5. horizontal well completion tubular pile according to claim 4 is oriented to resistance absorber, it is characterised in that described oblique groove is
3.
6. horizontal well completion tubular pile according to claim 1 is oriented to resistance absorber, it is characterised in that described rotation outer barrel
(4) the oblique projection upper berth of upper periphery is welded with hard alloy, and lower cone shape periphery paving is welded with hard alloy.
7. horizontal well completion tubular pile according to claim 1 is oriented to resistance absorber, it is characterised in that described rotation outer barrel
(4) distance of the upper end away from top connection (1) upper end should be less than oblique groove axial length.
8. horizontal well completion tubular pile according to claim 1 is oriented to resistance absorber, it is characterised in that described seeker (10)
Bottom is hemispherical, part elliptical shape or coniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397475.XU CN206299350U (en) | 2016-12-20 | 2016-12-20 | Horizontal well completion tubular pile is oriented to resistance absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397475.XU CN206299350U (en) | 2016-12-20 | 2016-12-20 | Horizontal well completion tubular pile is oriented to resistance absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299350U true CN206299350U (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621397475.XU Active CN206299350U (en) | 2016-12-20 | 2016-12-20 | Horizontal well completion tubular pile is oriented to resistance absorber |
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| Country | Link |
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| CN (1) | CN206299350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593313A (en) * | 2016-12-20 | 2017-04-26 | 中国石油化工股份有限公司 | Horizontal well completion pipe string guide resistance reducing device |
-
2016
- 2016-12-20 CN CN201621397475.XU patent/CN206299350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593313A (en) * | 2016-12-20 | 2017-04-26 | 中国石油化工股份有限公司 | Horizontal well completion pipe string guide resistance reducing device |
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