CN206694012U - Horizontal well repeated transformation tubular column - Google Patents
Horizontal well repeated transformation tubular column Download PDFInfo
- Publication number
- CN206694012U CN206694012U CN201621470507.4U CN201621470507U CN206694012U CN 206694012 U CN206694012 U CN 206694012U CN 201621470507 U CN201621470507 U CN 201621470507U CN 206694012 U CN206694012 U CN 206694012U
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- CN
- China
- Prior art keywords
- packing element
- leather cup
- element body
- horizontal well
- sliding sleeve
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- 230000009466 transformation Effects 0.000 title claims abstract description 18
- 239000004576 sand Substances 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims description 48
- 239000010985 leather Substances 0.000 claims description 32
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model belongs to the technical field of the coal chemical industry, concretely relates to horizontal well is repeated to be reformed transform tubular column. The packer comprises a safety joint, an upper packer, a sliding sleeve sand blower and a lower packer which are sequentially connected from top to bottom through screw threads; the upper packer is a ZY531 packer; the lower packer is a Y211 packer. The horizontal well repeated transformation tubular column is simple in setting, high in safety, low in production cost and high in construction efficiency.
Description
Technical field
The utility model belongs to oil gas field reservoir and repeats transformation instrument, and in particular to a kind of horizontal well repeats transformation tubing string.
Background technology
At present, oilfield horizontal well progressively declines due to yield, and during due to early development, part of horizontal well the intensity of rebuilding is inadequate
Cause its yield to decline very fast, therefore be badly in need of carrying out repeating to transform increasing its oil productive capacity, research shows, horizontal for low yield
Well, " repeating to transform " theory is introduced, it is necessary to which carrying out horizontal well repeats transformation further to improve correctional effect.And the repetition of early stage
Transformation tubing string can only construct one section for single time, and efficiency is low, increase construction cost.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model is to propose that a kind of horizontal well repeats to transform
Tubing string.
To realize above-mentioned technical purpose, the utility model, which adopts the following technical scheme that, to be achieved.
A kind of horizontal well repeats transformation tubing string, including is sequentially connected safety joint, upper packing by screw thread from top to bottom
Device, sand blower of sliding sleeve and lower packet；The upper packer is ZY packers；The lower packet is Y packers.
Preferably, the upper packer includes central tube, is sheathed on successively from top to bottom outside the leather cup on the central tube
Skeleton, leather cup, and adapter sleeve；A leather cup wedging ring is arranged outside the adapter sleeve；The outer skeleton of the leather cup is consolidated by fastener
Determine to the central tube, and compress the leather cup top；The leather cup wedging ring is fixed to the connection by the first shear pin
Put, and coordinate with the leather cup bottom.
Preferably, the sand blower of sliding sleeve includes a top connection, and the top connection connects a sliding sleeve by the second shear pin
Upper end, the lower end inside of the sliding sleeve connect an inner tube, spring are provided between said inner tube and the lower end of the sliding sleeve.
Preferably, the lower packet includes integral type packing element, and the integral type packing element includes upper end packing element body with
Packing element body is held, it is in integral structure that the upper end packing element body connects with the lower end packing element body, and upper end packing element body
Hardness be less than lower end packing element body hardness.
Preferably, deformation space is provided between the upper end packing element body and lower end packing element body.
The beneficial effects of the utility model：
1st, the horizontal well repeats transformation tubing string to set simple, safe production cost low, and efficiency of construction is high, in long celebrating oil
Field factory implements three mouthfuls of wells, and average efficiency of construction reaches 2.5 sections/times.
2nd, this tubing string is adopted as ZY531 packers, and the bottom leather cup of the ZY531 packers promotes top compression formula packing element
Set work, be characterized in pushing it is higher set more reliable, effectively increase the packer life-span.
Brief description of the drawings
Fig. 1 is that this horizontal well provided using new embodiment repeats to transform the structural representation of tubing string；
Fig. 2 is the structural representation that the horizontal well that the utility model embodiment provides repeats upper packer in transformation tubing string；
Fig. 3 is the structural representation that the horizontal well that the utility model embodiment provides repeats sand blower of sliding sleeve in transformation tubing string
Figure；
Fig. 4 is the structural representation that the horizontal well that the utility model embodiment provides repeats lower packet in transformation tubing string；
Fig. 5 is that the structure of the packing element of lower packet in the horizontal well repetition transformation tubing string that the utility model embodiment provides is shown
It is intended to.
In figure：Safety joint 1；Upper packer 2；Sand blower of sliding sleeve 3；Lower packet 4；Central tube 21；The outer skeleton 22 of leather cup；
Leather cup 23；Adapter sleeve 24；Leather cup wedging ring 25；First shear pin 26；Top connection 31；Second shear pin 32；Sliding sleeve 33；Inner tube 34；Bullet
Spring 35；Integral type packing element 40；Upper end packing element body 41；Lower end packing element body 42.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Embodiment 1
As shown in figure 1, horizontal well provided by the utility model repeat transformation tubing string include from top to bottom by screw thread successively
It is connected to safety joint 1, upper packer 2, sand blower of sliding sleeve 3 and lower packet 4；The upper packer 2 is ZY531 packers；
The lower packet 4 is Y211 packers.
The Y211 packers are compressions, and one-way slip is supported, and handling tubing string is set, the packing of handling tubing string deblocking
Device.
The ZY531 packers are self-styled and compression combined type, and anchor watt support, pitching, which is suppressed, realizes internal mechanism release
Set, the packer of handling tubing string deblocking.
In use, the safety joint 1 is connected with oil pipe, in lower going-into-well；On put put tubing string set Y211 underseals packing
Device；When, to starting to suppress behind precalculated position, when pressure reaches 5MPa, ZY531 packers discharge leather cup, and pressure reaches under instrument
During 10MPa, sanding machine nozzle exposes, into working condition；Then, normal construction is carried out, oil pipe suppresses ZY531 packer cups
Compression type glue barrel is promoted to move up；Then, upper lifting pipe post after construction, next section of construction is carried out, until completing full well section
Construction.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 2 the upper packer 2 includes central tube 21, cover successively from top to bottom
The skeleton 22 outside the leather cup on the central tube 21, leather cup 23, and adapter sleeve 24；A leather cup is arranged outside the adapter sleeve 24
Wedging ring 25；The outer skeleton 22 of the leather cup is fixed on the central tube 21 by fastener, and compresses the top of leather cup 23；
The leather cup wedging ring 25 is fixed to the adapter sleeve 24 by the first shear pin 26, and coordinates with the bottom of leather cup 23.
When needing to set in underground, suppressed into oil pipe, oily overpressure increase, the first shear pin 26 is pulled off while band
Dynamic leather cup wedging ring 25 is descending, and release is contracted in the leather cup 23 of the inner side of leather cup wedging ring 25, leather cup 23 voluntarily expand and sleeve pipe in
Wall is interference fitted to form sealing.
Embodiment 3
On the basis of embodiment 2, as shown in figure 3, the sand blower of sliding sleeve 3 includes a top connection 31, the top connection
31 connect the upper end of a sliding sleeve 33 by the second shear pin 32, and the lower end inside of the sliding sleeve 33 connects an inner tube 34, said inner tube
Spring 35 is provided between 34 and the lower end of the sliding sleeve 33.
When, to starting to suppress behind precalculated position, when pressure reaches 5MPa, the first shear pin 26 of ZY531 packers is cut under instrument
Disconnected, leather cup wedging ring 25 is moved down, and discharges leather cup 23, and when pressure reaches 10MPa, the second pin 32 of sanding machine sliding sleeve 33 is sheared,
Sliding sleeve 33 is exposed by the elastic force of spring 35 to nozzle is moved down, into working condition；Wherein, the structure of the nozzle and nozzle and its
The annexation of his part is existing structure, is not described in detail herein.
Embodiment 4
On the basis of embodiment 1, as shown in Figure 4 and Figure 5, the lower packet 4 includes integral type packing element 40, and described one
Body formula packing element 40 includes upper end packing element body 41 and lower end packing element body 42, the upper end packing element body 41 and the lower end packing element
The connection of body 42 is in integral structure, and the hardness of upper end packing element body 41 is less than the hardness of lower end packing element body 42.
Deformation space 43 is provided between the upper end packing element body 41 and lower end packing element body 42, in order to packing element body
Deformation.
The upper end packing element body 41 and lower end packing element body 42 are made of the encapsulant in existing packing element, herein
It is not described in detail.
In the prior art, three-stage packing element structure is used on central tube 21, three packing elements are separated with spacer ring, due to three glue
Cylinder hardness arrangement is soft or hard soft, and packing element sets asynchronous, and once deblocking packing element damages afterwards for work, can not construct again；And this
By setting integral type packing element in embodiment, ensure that packing element sets synchronization, the ability for possessing restting more than 15 times, be allowed to
It can repeatedly use, there is simple to operate, bearing capacity height, the features such as can dragging.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (4)
1. a kind of horizontal well repeats transformation tubing string, it is characterised in that：Connect including being sequentially connected safety by screw thread from top to bottom
Head (1), upper packer (2), sand blower of sliding sleeve (3) and lower packet (4)；The upper packer (2) is ZY531 packers；Institute
It is Y211 packers to state lower packet (4)；The upper packer (2) includes central tube (21), is sheathed on institute successively from top to bottom
State the outer skeleton (22) of leather cup on central tube (21), leather cup (23), and adapter sleeve (24)；One is arranged outside the adapter sleeve (24)
Leather cup wedging ring (25)；The outer skeleton (22) of the leather cup is fixed on the central tube (21) by fastener, and described in compression
Leather cup (23) top；The leather cup wedging ring (25) is fixed on the adapter sleeve (24) by the first shear pin (26), and with institute
State the cooperation of leather cup (23) bottom.
2. a kind of horizontal well according to claim 1 repeats transformation tubing string, it is characterised in that：The sand blower of sliding sleeve (3)
Including a top connection (31), the top connection (31) connects the upper end of a sliding sleeve (33), the sliding sleeve by the second shear pin (32)
(33) lower end inside connects an inner tube (34), and spring is provided between said inner tube (34) and the lower end of the sliding sleeve (33)
(35)。
3. a kind of horizontal well according to claim 1 repeats transformation tubing string, it is characterised in that：Lower packet (4) bag
Integral type packing element (40) is included, the integral type packing element (40) includes upper end packing element body (41) and lower end packing element body (42), institute
It is in integral structure to state upper end packing element body (41) and the lower end packing element body (42) connection, and upper end packing element body (41)
Hardness is less than the hardness of lower end packing element body (42).
4. a kind of horizontal well stated according to claim 3 repeats transformation tubing string, it is characterised in that：The upper end packing element body (41)
Deformation space is provided between lower end packing element body (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621470507.4U CN206694012U (en) | 2016-12-30 | 2016-12-30 | Horizontal well repeated transformation tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621470507.4U CN206694012U (en) | 2016-12-30 | 2016-12-30 | Horizontal well repeated transformation tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694012U true CN206694012U (en) | 2017-12-01 |
Family
ID=60440239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621470507.4U Active CN206694012U (en) | 2016-12-30 | 2016-12-30 | Horizontal well repeated transformation tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694012U (en) |
-
2016
- 2016-12-30 CN CN201621470507.4U patent/CN206694012U/en active Active
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