CN106703745B - A kind of pumped type bridge plug - Google Patents
A kind of pumped type bridge plug Download PDFInfo
- Publication number
- CN106703745B CN106703745B CN201510794373.5A CN201510794373A CN106703745B CN 106703745 B CN106703745 B CN 106703745B CN 201510794373 A CN201510794373 A CN 201510794373A CN 106703745 B CN106703745 B CN 106703745B
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- rotor
- rotating vane
- guide head
- cleaning head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004576 sand Substances 0.000 claims abstract description 35
- 238000004140 cleaning Methods 0.000 claims abstract description 31
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 abstract description 18
- 239000003292 glue Substances 0.000 abstract description 8
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007480 spreading Effects 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/134—Bridging plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/261—Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention relates to a kind of pumped type bridge plugs, comprising: central tube；The guide head being connected with the central tube；The driving assembly of the inside of the guide head is arranged in part；The cleaning head being connected with the driving component, wherein under the action of the driving component, actuate the cleaning head and correspondingly rotated so that the sand body outside the central tube is stirred into suspension.The pumped type bridge plug has the advantages that reduction sand setting effect, the flow conductivity in few, the close well crack of the injection rate of glue are strong, sand removal is thorough, it is strong to clean ability and also have the advantages that the extent of spreading amd application is wide.
Description
Technical field
The present invention relates to unconventional horizontal well multistage subsection massive hydraulic fracture technical field of operation more particularly to a kind of pumpings
Formula bridge plug.
Background technique
Current bridge plug perforation connection work is the dominant technology of shale gas pressure break, the especially exploration and development in Fuling shale gas
In played irreplaceable role.
It is past in horizontal wellbore in addition to the injection with liquid during existing bridge plug carrying setting tool enters well
It is past to have a certain amount of sand body.It is stifled there is a phenomenon where meeting to avoid bridge plug during entering well, therefore, it can be infused into well
Enter a certain amount of glue, to increase the carrying effect to horizontal wellbore sand setting.However, due to the amount for the glue being injected into well
More and adhesiveness is higher, once the broken glue effect of glue is bad, then may influence the flow conductivity in nearly well crack.
Based on the analysis to the above-mentioned prior art, need to design it is a kind of can sand body in automatic cleaning horizontal well to reduce
The pumped type bridge plug of the injection rate of glue.
Summary of the invention
In view of the above-mentioned problems, proposing a kind of pumped type bridge plug according to the present invention, comprising: central tube；With the central tube
The guide head being connected；The driving assembly of the inside of the guide head is arranged in part；What is be connected with the driving component is clear
Sweep head, wherein under the action of the driving component, actuate the cleaning head and correspondingly rotated with will be outside the central tube
The sand body in portion stirs into suspension.In this way, can make sand positioned at the front end of the end face for entering well direction of the pumped type bridge plug
Body is rotated, to reduce the probability of underground sand setting effect generation.Meanwhile under the action of liquid washes away, by the sand of underground
Body is brought into stratum, to achieve the purpose that sweep sand.
In one embodiment, the driving component includes transmission shaft, and the first end of the transmission shaft is located at the guiding
The inside of head, the second end of the transmission shaft are located at the outside of the guide head.The setting of the transmission shaft, can play will drive
The rotary power of component passes to the effect of cleaning head, so that cleaning head is rotated, i.e., stirs the sand body outside guide head
Suspension is mixed, to reduce the sand setting effect of sand body.
In one embodiment, the driving component further includes being located at the inside of the guide head and being respectively sleeved at described
The stator and rotor of the first end of transmission shaft, the stator and the rotor are arranged in compartment.By making stator and rotor
It is arranged in compartment, stator and rotor can be avoided because being closer or being in contact, cause stator interference rotor to carry out normal
The drawbacks of rotation.
In one embodiment, it is configured on the end face that the direction of the stator enters well direction spaced apart multiple oblique
Deflector hole.
In one embodiment, annular seal groove is configured on the periphery wall of the stator.
In one embodiment, the rotor include the first end for being set in the transmission shaft basic ring and it is multiple from
The rotating vane that the longitudinal direction of the basic ring is extended.In this way, the transmission shaft can be driven together when rotor is circumferentially rotated
It is circumferentially rotated.The setting of the rotating vane can play the role of the liquid accepted in oblique deflector hole, thus
Under the percussion of liquid, rotating vane is promoted to rotate in a circumferential direction together with basic ring.
In one embodiment, the bore of the arrival end of each oblique deflector hole is all larger than the bore of outlet end, and each
The outlet end of the oblique deflector hole is towards the stress surface of the corresponding rotating vane.By making the oblique deflector hole
The bore of arrival end is greater than the bore of outlet end, can make after liquid flows through the oblique deflector hole, can generate chock pressure difference,
To which effect is larger to the hydraulic shock power of corresponding rotating vane.
In one embodiment, each rotating vane in the circumferential direction of the basic ring with the adjacent rotating vane
It is partially overlapped by each other.
In one embodiment, the first end of the transmission shaft is fixedly connected with the rotor, the cleaning head fixing sleeve
It is located at the second end of the transmission shaft.
In one embodiment, after liquid flows through the oblique deflector hole, the corresponding rotating vane is impacted to promote
The rotor is rotated, and the rotor drives the cleaning head to be rotated by the transmission shaft.
According to the present invention, compared with prior art, which, which has, reduces sand setting effect, the injection rate of glue
Less, the flow conductivity in closely well crack is strong, sand removal thoroughly, clean the strong advantage of ability and also with wide excellent of the extent of spreading amd application
Point.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.In figure:
Fig. 1 is the overall structure diagram of the pumped type bridge plug of embodiments herein.
Fig. 2 is the structural schematic diagram of the cleaning head of the pumped type bridge plug of embodiments herein.
Fig. 3 is the structural schematic diagram of the rotor of the pumped type bridge plug of embodiments herein.
Fig. 4 is the structural schematic diagram of the stator of the pumped type bridge plug of embodiments herein.
In the accompanying drawings, identical component uses identical appended drawing reference.Attached drawing is not according to actual scaling.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1, Fig. 1 schematically shows that the pumped type bridge plug 100 includes central tube 1, guide head 2, driving group
Part 3 and cleaning head 4.
In embodiments herein, which is substantially cylindrical in shape, and internal is hollow.Wherein, in the central tube 1
Upper end be configured with the milling interface angled with axial end.In this way, the milling for being conducive to the pumped type bridge plug 100 is made
Industry.
In a specific embodiment, the magnitude range of the certain angle is more than or equal to 45 degree and to be less than or equal to 60
Degree.Wherein, optimized angle is 45 degree, 50 degree, 55 degree and 60 degree.
The guide head 2 is connected with central tube 1, and specifically, which can be to be threadedly coupled with central tube 1.In this way,
Facilitate the installation and disassembly of the guide head 2 Yu central tube 1.
The inside of guide head 2 is arranged in 3 part of driving assembly.
The cleaning head 4 is connected with driving assembly 3, wherein under the action of driving assembly 3, actuates cleaning head 4 and carries out phase
Sand body outside central tube 1 is stirred into suspension by the rotation answered.In this way, working as liquid during pumping liquid into well
After body flows through the pumped type bridge plug 100, chock pressure difference can be generated.Turning for driving assembly 3 is actuated under the action of the chock pressure difference
It is dynamic, so that cleaning head 4 be driven to be rotated together.In this way, can make positioned at the end for entering well direction of the pumped type bridge plug 100
The sand body of the front end in face is rotated, to reduce the probability of underground sand setting effect generation.Meanwhile the effect washed away in liquid
Under, the sand body of underground is brought into stratum, to achieve the purpose that sweep sand.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, in a preferred embodiment, which includes transmission shaft
31, the first end 311 of the transmission shaft 31 is located at the inside of guide head 2, and the second end 312 of the transmission shaft 31 is located at guide head 2
It is external.The setting of the transmission shaft 31 can be played the role of the rotary power of driving assembly 3 passing to cleaning head 4, so that
Cleaning head 4 is rotated, i.e., the sand body outside guide head 2 is stirred into suspension, to reduce the sand setting effect of sand body.
As shown in Figure 1, in a preferred embodiment, which further includes the inside positioned at guide head 2 and divides
It is not set in the stator 32 and rotor 33 of the first end 311 of transmission shaft 31, the stator 32 and rotor 3 are arranged in compartment.Wherein,
The stator 32 is generally circular.Specifically, the mode which can be connected through a screw thread is fixed on the inside of guide head 2, with
Stator 32 is avoided to carry out double swerve along the central axis of guide head 2, so that stator 32 is securely fixed in guide head 2
It is internal.By the way that stator 32 and rotor 33 is arranged in compartment, stator 32 and rotor 33 can be avoided because being closer or sending out
The drawbacks of life contacts, and causes stator 32 that rotor 33 is interfered to carry out normal rotation.
For the cleaning power for enhancing cleaning head 4, can match by the stator 32 added in driving assembly 3 and with stator 32
The number of combinations of rotor 33 realize.In embodiments herein, which can be 1,2 or 3.
As shown in figure 4, in a preferred embodiment, stator 32 direction enter well direction end face on be configured between
The multiple oblique deflector holes 322 separated.Specifically, the arrival end 325 of the oblique deflector hole 322 and outlet end 326 are longitudinally staggered
Setting.In this way, facilitating liquid when flowing through the oblique deflector hole 322, can accurately impact and oblique 322 phase of deflector hole
On the stress surface 333 for the rotating vane 332 as described below being correspondingly arranged.To ensure that the hydraulic shock rotating vane 333
Accuracy rate, improve rotor 33 rotation efficiency.
In a preferred embodiment, annular seal groove 324 is configured on the periphery wall 323 of the stator 32.Pass through
Sealing element is installed in the annular seal groove 324, can realize the effect of sealing, that is, avoids flowing through the liquid inside central tube 1,
It is leaked when flowing into the inside of guide head 2, to impact the drawbacks of rotor 33 carries out normal rotation.Wherein, above-mentioned
Sealing element can be O-ring seal or other components with sealing function.
As shown in figure 3, in a preferred embodiment, which includes the first end 311 for being set in transmission shaft 31
Basic ring 331 and the rotating vane 332 that extends of multiple longitudinal directions from basic ring 331.Specifically, the basic ring 331 and the transmission
The first end 311 of axis 31 is to be fixedly connected in the circumferential.In this way, the transmission can be driven when rotor 33 is circumferentially rotated
Axis 31 is circumferentially rotated together.The setting of the rotating vane 332 can play the liquid accepted in oblique deflector hole 322
Effect, to promote rotating vane 332 to rotate in a circumferential direction together with basic ring 331 under the percussion of liquid.
As shown in Figure 1 and Figure 4, in a preferred embodiment, the bore of the arrival end 325 of each oblique deflector hole 322
Greater than the bore of outlet end 326, and the outlet end 326 of each oblique deflector hole 322 is towards the stress of corresponding rotating vane 332
Face 333.Wherein, towards well direction is entered, which enters well direction backwards for the outlet end 326.Specifically, by making this
The bore of the arrival end 325 of oblique deflector hole 322 is greater than the bore of outlet end 326, can make and oblique leads when liquid flows through this
After discharge orifice 322, chock pressure difference can be generated, so that effect is larger to the hydraulic shock power of corresponding rotating vane 332.Further
Ground enables to rotating vane 332 to carry out high speed rotation.
In addition, pass through so that the outlet end 326 of the oblique deflector hole 322 is towards corresponding rotating vane 332, i.e., towards with
The corresponding rotating vane 332 in outlet end 326 can guarantee that the liquid flowed out from outlet end 326 can be impacted accurately
In rotating vane 332, avoid the liquid injection flowed out from the outlet end 326 to by being formed two neighboring rotating vane 332
Gap in.The waste of liquid is not only resulted in this way, meanwhile, it can also reduce the efficiency that driving rotor 33 is rotated.
As shown in figure 3, in a preferred embodiment, each rotating vane 332 in the circumferential direction of basic ring 331 with it is adjacent
Rotating vane 332 be partially overlapped by each other.In this way, can guarantee the liquid energy flowed out from the outlet end 326 of oblique deflector hole 322
It is enough to be accurately applied in rotating vane 332, avoid liquid injection into the gap formed by two neighboring rotating vane 332,
Cause the drawbacks of reducing by 33 revolving speed of rotor.
As shown in Fig. 2, in a preferred embodiment, the first end 311 of the transmission shaft 31 is fixedly connected with rotor 33,
The fixed second end 312 for being set in transmission shaft 31 of cleaning head 4.In this way, transmission shaft 31 can be driven when rotor 33 is rotated
It is correspondingly rotated, so that cleaning head 4 be driven also to carry out corresponding rotation.Further, by the sand body outside central tube 1
Suspension is stirred into, the generation of sand setting effect is reduced or avoided, realizes the purpose for sweeping sand.
In a preferred embodiment, after liquid flows through oblique deflector hole 322, impact corresponding rotating vane 332 with
Rotor 33 is promoted to be rotated, which drives cleaning head 4 to be rotated by transmission shaft 31.
The cleaning head 4 includes multiple cleaning leaves of the lantern ring 41 being set on transmission shaft 31 and the outside that lantern ring 41 is arranged in
Piece 42.The cleaning head 4 can according to the sand body amount of underground number and cleaning degree needs, carry out appropriate adding cleaning head
4 number.
In embodiments herein, which further includes the inside positioned at guide head 2 and is respectively sleeved at
Bearing 5 and bearing support 6 in the first end 311 of transmission shaft 31, wherein the bearing 5 and bearing support 6 are arranged in compartment.
The first spacer ring 7 is also arranged between the bearing 5 and bearing support 6, the setting of first spacer ring 7 is played
The effect for enabling the bearing 5 and bearing support 6 to be firmly positioned in the inside of guide head 2 and will not shake.
In addition, the pumped type bridge plug 100 further includes the second spacer ring 8, which is set in the outer of rotor 33
Side, and be not in contact with the outside of rotor 33.In this way, the setting of second spacer ring 8, just will not influence the rotation of rotor 33.
Meanwhile the setting of second spacer ring 8, it can play the role of separating stator 32 and rotor 33, i.e., so that the stator 32 and turning
Son 33 will not contact with each other.
According to one embodiment of present invention, the specific work process of the pumped type bridge plug 100 are as follows:
The setting tool (not shown) of perforating gun and the pumped type bridge plug 100 are lowered into well, are pumping by first choice
Under the Gravitative Loads of formula bridge plug 100, transferred by cable.
When pumped type bridge plug 100 enters oblique Duan Jinghou, start to pump liquid into well, liquid is flowing through pumped type bridge plug
100 front and back can generate chock pressure difference, and pumped type bridge plug 100 is promoted to move forward.Meanwhile partially liq flows through stator 32
After oblique deflector hole 322, meeting impact rotor 33 is quickly rotated.Rotor 33 drives cleaning head 4 to be revolved by transmission shaft 31
Turn.Under the action of cleaning head 4, the sand body of 100 front of pumped type bridge plug is driven to be rotated, so that the sand body is in suspension
Shape.In this way, the sand setting effect of horizontal wellbore is just greatly reduced, the liquid in pit shaft drives sand to enter stratum, thus
Reach and sweeps Grains.Meanwhile also avoiding due to injecting more high viscosity liquid, once the viscosity of the high viscosity liquid is not
It can preferably reduce, then can cause the drawbacks of influencing the flow conductivity in nearly well crack.
In conclusion compared with prior art, which, which has, reduces sand setting effect, the injection rate of glue
Less, the flow conductivity in closely well crack is strong, sand removal thoroughly, clean the strong advantage of ability and also with wide excellent of the extent of spreading amd application
Point.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (2)
1. a kind of pumped type bridge plug, comprising:
Central tube；
The guide head being connected with the central tube；
The driving assembly of the inside of the guide head is arranged in part；
The cleaning head being connected with the driving component, wherein under the action of the driving component, actuate the cleaning head into
Row is correspondingly rotated so that the sand body outside the central tube is stirred into suspension,
The driving component includes transmission shaft, and the first end of the transmission shaft is located at the inside of the guide head, the transmission shaft
Second end be located at the outside of the guide head,
The driving component further includes determining for the first end for being located at the inside of the guide head and being respectively sleeved at the transmission shaft
Son and rotor, the stator and the rotor are arranged in compartment,
Multiple oblique deflector holes spaced apart are configured on the end face that the direction of the stator enters well direction,
It is configured with annular seal groove on the periphery wall of the stator,
The rotor includes that the basic ring for the first end for being set in the transmission shaft and multiple longitudinal directions from the basic ring are extended
Rotating vane,
The bore of the arrival end of each oblique deflector hole is all larger than the bore of outlet end, and the outlet of each oblique deflector hole
The stress surface of the corresponding rotating vane of end direction,
Each rotating vane is partially overlapped by each other with the adjacent rotating vane in the circumferential direction of the basic ring,
The first end of the transmission shaft is fixedly connected with the rotor, and the cleaning head fixation is set in the second of the transmission shaft
End.
2. pumped type bridge plug according to claim 1, which is characterized in that after liquid flows through the oblique deflector hole, impact
For the corresponding rotating vane to promote the rotor to be rotated, the rotor drives the cleaning head by the transmission shaft
It is rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794373.5A CN106703745B (en) | 2015-11-18 | 2015-11-18 | A kind of pumped type bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794373.5A CN106703745B (en) | 2015-11-18 | 2015-11-18 | A kind of pumped type bridge plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703745A CN106703745A (en) | 2017-05-24 |
| CN106703745B true CN106703745B (en) | 2019-10-29 |
Family
ID=58932318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510794373.5A Active CN106703745B (en) | 2015-11-18 | 2015-11-18 | A kind of pumped type bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703745B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899013A (en) * | 2019-02-11 | 2019-06-18 | 中国石油天然气股份有限公司 | Sand jam prevention device and method for horizontal well cable transmission hydraulic pumping tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671356A (en) * | 1986-03-31 | 1987-06-09 | Halliburton Company | Through tubing bridge plug and method of installation |
| CN2690585Y (en) * | 2003-12-26 | 2005-04-06 | 孔宪春 | Two purpose injection type drillable bridge plug |
| CN201756944U (en) * | 2010-08-03 | 2011-03-09 | 北京托普威尔石油技术服务有限公司 | Oil pipe bridge plug |
| CN102635328A (en) * | 2012-04-16 | 2012-08-15 | 中国石油化工股份有限公司 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
| CN103573211A (en) * | 2013-10-18 | 2014-02-12 | 中国石油化工股份有限公司 | Composite bridge plug and central tube thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6796376B2 (en) * | 2002-07-02 | 2004-09-28 | Warren L. Frazier | Composite bridge plug system |
-
2015
- 2015-11-18 CN CN201510794373.5A patent/CN106703745B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671356A (en) * | 1986-03-31 | 1987-06-09 | Halliburton Company | Through tubing bridge plug and method of installation |
| CN2690585Y (en) * | 2003-12-26 | 2005-04-06 | 孔宪春 | Two purpose injection type drillable bridge plug |
| CN201756944U (en) * | 2010-08-03 | 2011-03-09 | 北京托普威尔石油技术服务有限公司 | Oil pipe bridge plug |
| CN102635328A (en) * | 2012-04-16 | 2012-08-15 | 中国石油化工股份有限公司 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
| CN103573211A (en) * | 2013-10-18 | 2014-02-12 | 中国石油化工股份有限公司 | Composite bridge plug and central tube thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106703745A (en) | 2017-05-24 |
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