CN103967468B - Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device - Google Patents
Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device Download PDFInfo
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- CN103967468B CN103967468B CN201410220978.9A CN201410220978A CN103967468B CN 103967468 B CN103967468 B CN 103967468B CN 201410220978 A CN201410220978 A CN 201410220978A CN 103967468 B CN103967468 B CN 103967468B
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Abstract
The invention discloses a counting device and a multi-stage full-drift-diameter injection ball sliding sleeve device. The counting device comprises a first pipe body, a cylindrical sliding mandrel and an injection ball, wherein the cylindrical sliding mandrel is movably arranged in the first pipe body and sealed with the first pipe body. A plurality of first vacant grooves are formed in the inner wall of the first pipe body in the axial direction. An upper set of first petal doors and a lower set of first petal doors are arranged on the sliding mandrel. Each set of first petal doors is composed of first petal blocks and a first sealing ring. Each first petal block penetrates through the cylindrical wall of the sliding mandrel and is movably arranged on the sliding mandrel and matched with the injection ball and the corresponding first vacant groove in the first pipe body. Each first sealing ring is arranged above the corresponding first petal blocks in the cylinder wall and matched with the injection ball. The multi-stage full-drift-diameter injection ball sliding sleeve device provided with the counting device enables fracturing operation to be conducted on the situation that the diameter of an oil pipe is not changed and has the advantages that the inner drift diameter is large and enough flow channels can be provided compared with a common injection ball sliding sleeve.
Description
Technical field
The invention belongs to oil and gas exploitation equipment is and in particular to a kind of counting device and multistage full-bore pitching sliding sleeve
Device.
Background technology
In modern oil-gas mining, fracturing work is a kind of very effective volume increase method.Pitching sliding sleeve is a kind of in water
The downhole tool of oil jacket annular space switch is realized in flat bore hole or cased well separate zone production or pressure break.By ground to oil pipe pitching,
The unlatching of sliding sleeve is realized in the face of oil pipe pressurization in ground, and pressure is passed to payzone by the perforate of sliding sleeve, carries out pressure break to payzone by well liquid.
For same specification oil pipe, typically there are the supporting steel ball of multiple diameter, the setting aperture of cooperation pitching sliding sleeve, achievable multilayer is same
When go into the well stratified operation.The technology of pitching sliding sleeve is no more than and is slided with the pitching of respective aperture using the steel ball of different-diameter both at home and abroad
The setting of set is matched, and from small to large, from top to bottom, realizes stratified operation.But due to being limited by tubing diameter size
With the requirement of latus rectum, the classification quantity of steel ball size is restricted, and makes latus rectum less because the setting aperture of lower floor is less,
It is unfavorable for the lifting of pressure break production efficiency.
Content of the invention
It is an object of the invention to provide a kind of multiple zone of realizing in the case that tubing diameter is constant is layered unlatching operation
Counting device and multistage full-bore pitching sliding bush apparatus.
Realize the object of the invention the technical scheme is that
The counting device that the present invention provides, include the first body, be actively installed in first pipe body and with the first body sealing
Tubular slip mandrel and pitching, the inwall of described first body is axially arranged with some first room grooves, described slip mandrel
It is provided with upper and lower two group of first lobe door, every group of first lobe door is formed by the first lobe block and the first sealing ring, described first lobe
Block is movably arranged on slip mandrel through slide cores shaft wall and is matched with the first room groove in pitching and the first body, institute
State the first sealing ring and be located at the top of the first lobe block in barrel and match with pitching.
Described first body is threaded connection by top connection and cylinder and constitutes, and described first room groove and slip mandrel set
On cylinder.
The upper and lower ends of described slip mandrel are provided with the first elastic claw head matching with the first room groove on cylinder.
The size of described first lobe block is more than the wall thickness of slip mandrel.
The distance between two first lobe blocks in described upper and lower two group of first lobe door and two neighboring first room groove it
Between distance unequal.
The multistage full-bore pitching sliding bush apparatus that the present invention provides, connected including described counting device and with counting device
Plugging device, described plugging device includes the second body, is actively installed in second pipe body and slip mandrel in described counting device
Match and with second body sealing closure pipe, be located in second pipe body and by first shearing nail with the second body connection position
Shear sleeve below closure pipe, the tubular being set in closure pipe and shear sleeve and being connected with closure pipe by the second shearing nail
Ball seat；It is provided with the second room groove between described closure pipe and shear sleeve；It is provided with the second lobe door, the second lobe Men You in described ball seat
Two lobe blocks and the second sealing ring composition, described second lobe block is movably arranged on empty with pitching and second on ball seat through ball seat barrel
Position groove matches, and described second sealing ring is that two upper and lowers being respectively provided at the second lobe block in ball seat barrel are matched with pitching
Close；The inwall of described second body is provided with draw-in groove, and described closure pipe is provided with the card on the second elastic claw head and the second body
Groove matches, and closure pipe and the second body are respectively equipped with can be with corresponding first, second through hole；In described shear sleeve, lower end sets
There is the first seam with the cooperation of described ball seat, the lower end in described second pipe body is provided with the second seam with shear sleeve cooperation.
Described second body is from top to bottom threaded connection successively and is formed by center tap, shearing cylinder and lower contact；Described
Through hole on second body and draw-in groove are located on center tap, and described closure pipe is located in center tap；Described first shearing nail is located at
On described shearing cylinder, described shearing is set in shearing cylinder；Seam on described second body is located in described lower contact.
The distance between described first seam and described ball seat are equal to the distance between described first through hole and second through hole.
It is provided with suitable distance between described second seam and described shear sleeve.
The size of described second lobe block is more than the wall thickness of ball seat.
In described second lobe door, the second lobe block is 4 being circular layout.
The present invention can implement fracturing work in the case that tubing diameter is constant, has the advantage that
1) possesses the function of many number of stages hierarchical control fracturing work, layering quantity is not limited by tubing diameter；
2) because tubing diameter is constant, can possess larger interior latus rectum, can provide more compared with common pitching sliding sleeve
Enough fluid passages；
3) it can be ensured that setting after pitching is setting, reliably bear frac pressure；
4) it is suitable for the pitching mode of operation of standard, makes operation generalization, simplify.
The present invention will be further described below in conjunction with the accompanying drawings.
Brief description
Fig. 1 is the multistage full-bore pitching sliding bush apparatus structural representation of the present invention.
Fig. 2 is the structural representation of counting device in the present invention.
Fig. 3 is the operation principle schematic diagram of counting device.
Fig. 4 is the structural representation of plugging device in the present invention.
Fig. 5 is the operation principle schematic diagram of plugging device.
Fig. 6 is the multistage full-bore pitching sliding bush apparatus operation principle schematic diagram of the present invention.
Specific embodiment
As shown in figure 1, the multistage full-bore pitching sliding bush apparatus that the present invention provides, fill including counting device 1 with counting
Put the plugging device 2 of 1 connection.
Described counting device, as shown in Fig. 2 including the first body, the first body is passed through by top connection 101 and cylinder 102
Threaded composition, the inwall of cylinder 102 is axially arranged with some first room grooves 107, the quantity of the first room groove 107 according to
The count requirement setting of counter；It is movably equipped with tubular slip mandrel 106 in cylinder 102, up and down the two of tubular slip mandrel 106
End is provided with the first elastic claw head 104 matching with the first room groove 107 on cylinder 102, and tubular slip mandrel 106 is provided with
Form sealing, the middle part of slip mandrel 106 is provided with upper and lower two group of first lobe door, every group first between o shape circle 105 and cylinder 102
Lobe door is formed by 4 (or six) the first lobe block 109 being circular layout and first sealing ring 108, the first lobe block 109
Size is more than the wall thickness of slip mandrel 106, and the first lobe block 109 is movably arranged on slide cores through slip mandrel 106 barrel
Match with the first room groove 107 in pitching 103 and cylinder 102 on axle 106, two in upper and lower two group of first lobe door
The distance between the distance between one lobe block 109 and two neighboring first room groove 107 unequal so that when one of them first
When lobe block 109 and the first room groove 107 cooperation, another the first lobe block 109 is not matched with other first room grooves 107
Close；Matched with pitching 103 in the top that first sealing ring 108 is located at the first lobe block 109 in slip mandrel 106 barrel.
The operation principle of counting device 1 is as shown in Figure 2 and Figure 3.Counting device 1 be slip counting structure, by with slip mandrel
The first room groove 107 number on cylinder 102 that the first lobe door mesopetalum block 109 on 106 matches is counting.Steel pitching
Pressurize after 103 sealings, promote 2 groups of lobe blocks 109 of slip mandrel 106 to be alternately closed and opening action, often cross a steel ball 103
Complete a cycle, promote elastic claw head 104 to move down a groove, realize counting.The concrete action of counting device 1 is as follows:
When the position of the first lobe block 109 is relative with the first room groove 107 on cylinder 102, can be to the first room groove
Avoid in 107, so that pitching 103 is passed through, this lobe door is open mode.Otherwise lobe block 109 no avoids space, and pitching 103 cannot be led to
Cross, be closed mode.Epivalve door in original position as shown in Fig. 2 in two group of first lobe door for the counting device 1 is closed, hypovalve
Door open, when pitching 103 falls into this device, pitching 103 is withstood by the lobe block 109 in epivalve door, and with the first sealing ring 108 shape
Become sealing；O shape circle 105 is now had to seal between slip mandrel 106 and cylinder 102, tubing pressure promotes slip mandrel 106 relatively
Cylinder 102 slide downward one segment distance, until the lobe block 109 in epivalve door is opened, the lobe block 109 in hypovalve door is closed, steel ball
Fall between the lobe block 109 of two lobe doors, such as shown in Fig. 3 (a)；Therefore pitching 103 continues to press on slip mandrel under tubing pressure
106 relative cylinder 102 slide downward, until the lobe block 109 in hypovalve door is opened pitching 103 and passed through, as shown in Fig. 3 (b).
Now, whole counting device 1 passes through a pitching 103, slip mandrel 106 cylinder one meter digital of 102 slide downward relatively, meter
The number of numerical digit to determine as desired by the number n of the first room groove 107 being provided for counting, for count the
One room groove 107, from the first lobe block 109 first first room groove in lower section of set below the first lobe door of slip mandrel 106
107 count, as shown in Figure 2.The first room groove 107 phase on the first elastic claw head 104 on slip mandrel 106 and cylinder 102
Cooperation is mainly used in positioning in sliding process for the slip mandrel 106.
Described plugging device, as shown in figure 4, include the second body, the second body by center tap 201, shearing cylinder 213 and under
Joint 218 is from top to bottom threaded connection composition successively；Center tap 201 is threadeded with the cylinder 102 in counting device 1,
Center tap 201 is provided with first through hole 206, and the inwall of center tap 201 is provided with lower bayonet slot 203, is movably equipped with center tap 201
The closure pipe 204 matching with slip mandrel 106 in described counting device, closure pipe 204 is provided with o shape circle 207 and center tap
201 sealings；Shearing cylinder 213 in be provided with shear sleeve 216, shear sleeve 216 pass through first shearing nail 215 with shear cylinder 213 be connected and
It is located at below closure pipe 204；Interior between closure pipe 204 and shear sleeve 216 be arranged with tubular ball seat 209, ball seat 209 passes through the
Two shearing nails 208 are connected with closure pipe 204；It is provided with the second room groove 212 between closure pipe 204 and shear sleeve 216；Ball seat 209
Inside it is provided with the second lobe door, the second lobe door is made up of the second lobe block 211 and the second sealing ring 210, the second lobe block 211 is to be circular layout
4 (or six), the size of the second lobe block 211 is more than the wall thickness of ball seat 209, and the second lobe block 211 passes through ball seat 209
Barrel is movably arranged on and is matched with pitching and the second room groove 212 on ball seat 209, and the second sealing ring 210 sets respectively for two
In ball seat barrel, the upper and lower of the second lobe block 211 is matched with pitching, and ball seat 209 is provided with o shape circle 219 and shear sleeve 216
Sealing；Closure pipe 204 is provided with the second elastic claw head 202 and is matched with the draw-in groove 203 being located on center tap 201 inwall, closure
Pipe 204 be provided with can with center tap 201 on corresponding second through hole 205 of first through hole 206；In shear sleeve 216, lower end sets
There is the first seam 214 with ball seat 209 cooperation, the first seam 214 and the distance between ball seat 209 l2 are equal to first through hole 206
With the distance between the second through hole 205 l1；Lower end in lower contact 218 is provided with the second seam 217 with shear sleeve 216 cooperation,
It is provided with suitable distance l3 between second seam 217 and shear sleeve 216.
As shown in Figure 4, Figure 5, plugging device 2 is in original state as shown in figure 4, at this moment for the operation principle of plugging device 2
In the upper draw-in groove 203 that second elastic claw head 202 of closure pipe 204 is located on center tap 201 inwall, make the second lobe on ball seat 209
The second lobe block 211 in door, against by the vacant slot 212 being formed between center tap 201 and shear sleeve 216, is in open mode.
Under slip mandrel 106 triggering in counting device 1, such as shown in Fig. 5 (a), closure pipe 204 is promoted, and center tap 201 relatively is downward
Mobile, now the second lobe door on ball seat 209 is closed, and the second lobe block 211 is return in ball seat 209, the o shape circle 219 on ball seat 209
Enter shear sleeve 216 sealing surface, pitching 103 falls from counting device 1, fall under being formed with the second sealing ring 210 in ball seat 209
Portion blocks.As shown in Fig. 5 (b), under the continuation of tubing pressure acts on, pitching 103 drag ball seat 209 and closure pipe 204 until
The second elastic claw head 202 of closure pipe 204 enters in the lower bayonet slot 203 on center tap 201 inwall, the second shearing nail 208 cut-out,
At this moment the second through hole 205 on closure pipe 204 and center tap 201, first through hole 206 align formation oil pipe passage；Then ball seat
209 fall in shear sleeve 216, and finally and shear sleeve 216 together falls in lower contact 218 to cut off the first shearing nail 215, such as schemes
Shown in 5 (c), vacant slot 212 dimension extension that now formed between center tap 201 and shear sleeve 216, make lower floor's pitching 103 can
To pass through this ball seat 209, such as shown in Fig. 5 (d).
Before being triggered, all pitchings can pass through plugging device 2, and after being counted device triggering, pitching will be sealed
Plug-hole footpath, and tubing pressure effect under, by plugging device 2 closure pipe 204 and center tap 201 on the second through hole 205,
First through hole 206 opens oil pipe passage, makes oil pipe internal pressure be transferred to payzone, starts fracturing work.
Shown in the multistage full-bore pitching sliding bush apparatus of present invention situation such as Fig. 6 (a) (e) in practical application, first
First determine the number of pitching sliding bush apparatus according to pressure break payzone number, set using specific purpose tool in advance according to layer position on well before installing
The numerical value of the counting device position of fixed this layer of position, that is, be used for the number n of the first room groove 107 of counting, then will be with meter digital
The equal pitching sliding bush apparatus of numerical value be sequentially connected in oil pipe lower going-into-well, the oil of pitching sliding bush apparatus will be provided with packer d
Pipe isolation forms pressure break payzone, and pitching sliding bush apparatus shown in Fig. 6 is 3, including counting device 1a 1c, plugging device 2a
2c.During use, put into the steel pitching 103 of supporting formed objects, when pitching passes sequentially through the counting device of each layer position n, touch
Send out a counting action r, be counted as s=n-r, r=0,1,2,3 ... n, until pitching falls into undermost pitching sliding bush apparatus, touch
Send out the last counting action of counting device in this pitching sliding bush apparatus, and start plugging device.Raise with tubing pressure, open
Begin undermost fracturing work.Often put into a pitching afterwards, gradually carry out fracturing work from lower to upper.After the completion of operation, throw
Ball returns to ground with oily tube fluid.
Claims (10)
1. a kind of counting device, it is characterized in that including the first body, be actively installed in first pipe body and with the first body sealing
Tubular slip mandrel and pitching, the inwall of described first body are axially arranged with some first room grooves, on described slip mandrel
It is provided with upper and lower two group of first lobe door, every group of first lobe door is formed by the first lobe block and the first sealing ring, and described first lobe block is worn
Cross slide cores shaft wall and be movably arranged on and match with the first room groove in pitching and the first body on slip mandrel, described
Matched with pitching in the top that one sealing ring is located at the first lobe block in barrel.
2. counting device according to claim 1, is characterized in that described first body passes through screw thread by top connection and cylinder
Connect and compose, described first room groove and slip mandrel are located on cylinder.
3. counting device according to claim 1 and 2, is characterized in that the upper and lower ends of described slip mandrel are provided with and cylinder
On the first elastic claw head of matching of the first room groove.
4. counting device according to claim 3, is characterized in that the size of described first lobe block is more than the cylinder of slip mandrel
Wall thickness.
5. counting device according to claim 4, is characterized in that two the first lobes in described upper and lower two group of first lobe door
The distance between the distance between block and two neighboring first room groove are unequal.
6. a kind of multistage full-bore pitching sliding bush apparatus using counting device as claimed in claim 1, is characterized in that including institute
State counting device and the plugging device connecting with counting device, described plugging device includes the second body, is actively installed on second pipe
Internal match with slip mandrel in described counting device and the closure pipe with the second body sealing, be located in second pipe body and lead to
Cross the first shearing nail with the second body connection position in blocking the shear sleeve below pipe, be set in closure pipe and shear sleeve and pass through
The tubular ball seat that second shearing nail is connected with closure pipe；It is provided with the second room groove between described closure pipe and shear sleeve；Described ball
It is provided with the second lobe door, the second lobe door is made up of the second lobe block and the second sealing ring, described second lobe block passes through ball seat barrel in seat
It is movably arranged on and matches with pitching and the second room groove on ball seat, described second sealing ring is two, is respectively provided at ball seat cylinder
In wall, the upper and lower of the second lobe block is matched with pitching；The inwall of described second body is provided with draw-in groove, described closure Guan Shangshe
The second elastic claw head is had to match with the draw-in groove on the second body, closure pipe and the second body are respectively equipped with can be with corresponding the
First, the second through hole；In described shear sleeve, lower end is provided with the first seam with the cooperation of described ball seat, the lower end in described second pipe body
It is provided with the second seam with shear sleeve cooperation.
7. multistage full-bore pitching sliding bush apparatus according to claim 6, it is characterized in that described second body by center tap,
Shearing cylinder and lower contact are from top to bottom threaded connection composition successively；Through hole on described second body and draw-in groove connect in being located at
On head, described closure pipe is located in center tap；Described first shearing nail is located on described shearing cylinder, and described shearing is set in shearing
In cylinder；Seam on described second body is located in described lower contact.
8. the multistage full-bore pitching sliding bush apparatus according to claim 6 or 7, it is characterized in that described first seam with described
The distance between ball seat is equal to the distance between described first through hole and second through hole.
9. multistage full-bore pitching sliding bush apparatus according to claim 8, is characterized in that described second seam is cut with described
Cut and between set, be provided with suitable distance.
10. multistage full-bore pitching sliding bush apparatus according to claim 9, is characterized in that the size of described second lobe block is big
Wall thickness in ball seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220978.9A CN103967468B (en) | 2014-05-23 | 2014-05-23 | Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220978.9A CN103967468B (en) | 2014-05-23 | 2014-05-23 | Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103967468A CN103967468A (en) | 2014-08-06 |
| CN103967468B true CN103967468B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410220978.9A Active CN103967468B (en) | 2014-05-23 | 2014-05-23 | Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device |
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| CN (1) | CN103967468B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9587464B2 (en) * | 2014-10-02 | 2017-03-07 | Sc Asset Corporation | Multi-stage liner with cluster valves and method of use |
| CN112709549B (en) * | 2021-01-13 | 2024-09-17 | 天津德瑞克石油工具有限公司 | Binary ball-throwing counting cluster sliding sleeve |
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| CN201610748U (en) * | 2009-11-03 | 2010-10-20 | 长沙市罡拓能源科技有限公司 | Ball throwing-type sliding sleeve screen pipe device |
| CN201738869U (en) * | 2010-07-02 | 2011-02-09 | 中国石油集团川庆钻探工程有限公司 | Drillable ball-throwing sliding sleeve suitable for horizontal well |
| GB2473786A (en) * | 2008-07-15 | 2011-03-23 | Caledyne Ltd | Well tool |
| CN201908639U (en) * | 2010-12-23 | 2011-07-27 | 中国石油集团渤海钻探工程有限公司 | Valving claw locking ball injection type sand blasting sliding sleeve for horizontal well fracturing |
| CN203847090U (en) * | 2014-05-23 | 2014-09-24 | 湖南唯科拓石油科技服务有限公司 | Counting device and multistage full-port ball-casting slide bushing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9353598B2 (en) * | 2012-05-09 | 2016-05-31 | Utex Industries, Inc. | Seat assembly with counter for isolating fracture zones in a well |
-
2014
- 2014-05-23 CN CN201410220978.9A patent/CN103967468B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2473786A (en) * | 2008-07-15 | 2011-03-23 | Caledyne Ltd | Well tool |
| CN201610748U (en) * | 2009-11-03 | 2010-10-20 | 长沙市罡拓能源科技有限公司 | Ball throwing-type sliding sleeve screen pipe device |
| CN201738869U (en) * | 2010-07-02 | 2011-02-09 | 中国石油集团川庆钻探工程有限公司 | Drillable ball-throwing sliding sleeve suitable for horizontal well |
| CN201908639U (en) * | 2010-12-23 | 2011-07-27 | 中国石油集团渤海钻探工程有限公司 | Valving claw locking ball injection type sand blasting sliding sleeve for horizontal well fracturing |
| CN203847090U (en) * | 2014-05-23 | 2014-09-24 | 湖南唯科拓石油科技服务有限公司 | Counting device and multistage full-port ball-casting slide bushing device |
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| CN103967468A (en) | 2014-08-06 |
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