CN203847090U - Counting device and multistage full-port ball-casting slide bushing device - Google Patents
Counting device and multistage full-port ball-casting slide bushing device Download PDFInfo
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- CN203847090U CN203847090U CN201420267256.4U CN201420267256U CN203847090U CN 203847090 U CN203847090 U CN 203847090U CN 201420267256 U CN201420267256 U CN 201420267256U CN 203847090 U CN203847090 U CN 203847090U
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Abstract
The utility model discloses a counting device and a multistage full-port ball-casting slide bushing device. The counting device comprises a first pipe, a cylindrical sliding mandrel and balls, wherein the cylindrical sliding mandrel is movably arranged in the first pipe and sealed with the same. A plurality of first vacancy slots are axially arranged in the inner wall of the first pipe, and the sliding mandrel is provided with upper and lower groups of first valves. Each group of first valves is composed of first valve blocks and first sealing rings, the first valve blocks are penetratingly movably arranged on the sliding mandrel and are matched with the balls and the first vacancy slots in the first pipe, and the first sealing rings are arranged above the first valve blocks in the wall of the sliding mandrel and matched with the balls. The multistage full-port ball-casting slide bushing device adopting the counting device is capable of fracturing on the premise of constant diameter of an oil pipe and has the advantages of large inner-port and more fluid passages as compared with a common ball-casting slide bush.
Description
Technical field
The utility model belongs to oil and gas exploitation equipment, is specifically related to a kind of counting device and multistage full-bore pitching sliding bush apparatus.
Background technology
In modern oil-gas mining, fracturing work is a kind of very effective volume increase way.Pitching sliding sleeve is a kind of downhole tool of realizing oil jacket annular space switch in horizontal bare 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 pressurizes in ground, and well liquid passes to payzone by the perforate of sliding sleeve by pressure, and payzone is carried out to pressure break.For same specification oil pipe, generally there is the supporting steel ball of multiple diameter, coordinate the setting aperture of pitching sliding sleeve, can realize the multilayer stratified operation of simultaneously going into the well.The technology of pitching sliding sleeve, no more than adopting the steel ball of different-diameter and the setting of pitching sliding sleeve of respective aperture to match, from small to large, from top to bottom, realizes stratified operation both at home and abroad.But owing to being subject to the restriction of tubing diameter size and the requirement of latus rectum, a point number of stages for steel ball size is restricted, and less compared with the little latus rectum that makes because of the setting aperture of lower floor, is unfavorable for the lifting of pressure break production efficiency.
Utility model content
The purpose of this utility model is to provide a kind of counting device and multistage full-bore pitching sliding bush apparatus of realizing multiple zone layering unlatching operation in the situation that tubing diameter is constant.
The technical scheme that realizes the employing of the utility model object is:
The counting device that the utility model provides, comprise the first body, be actively installed in the first body and with tubular slip mandrel and the pitching of the first body sealing, on the inwall of described the first body, be axially arranged with some the first room grooves, described slip mandrel is provided with, lower two group of first lobe door, every group of first lobe door is by the first lobe piece and the first sealing ring composition, described the first lobe piece is movably arranged on slip mandrel and matches with the first room groove on pitching and the first body through slide cores shaft wall, described the first sealing ring is located at the top of the first lobe piece in barrel and matches with pitching.
Described the first body is threaded connection and is formed by top connection and cylindrical shell, and described the first room groove and slip mandrel are located on cylindrical shell.
The two ends up and down of described slip mandrel are provided with the first elastic claw head matching with the first room groove on cylindrical shell.
The size of described the first lobe piece is greater than the barrel thickness of slip mandrel.
Distance between distance between two the first lobe pieces in described upper and lower two group of first lobe door and adjacent two the first room grooves is unequal.
The multistage full-bore pitching sliding bush apparatus that the utility model provides, the plugging device that comprises described counting device and be communicated with counting device, described plugging device comprises the second body, be actively installed in the second body with in described counting device, slide that mandrel matches and with the shutoff pipe of the second body sealing, be located in the second body and by the first shearing nail and be connected the shear sleeve that is positioned at shutoff pipe below with the second body, be set in shutoff pipe and shear sleeve interior and follow closely by the second shearing the tubular ball seat being connected with shutoff pipe; Between described shutoff pipe and shear sleeve, be provided with the second room groove; In described ball seat, be provided with the second lobe door, the second lobe door is made up of the second lobe piece and the second sealing ring, described the second lobe piece is movably arranged on ball seat and matches with pitching and the second room groove through ball seat barrel, and described the second sealing ring is that two upper and lowers that are located at respectively the second lobe piece in ball seat barrel match with pitching; The inwall of described the second body is provided with draw-in groove, and described shutoff pipe is provided with the second elastic claw head and matches with the draw-in groove on the second body, on shutoff pipe and the second body, be respectively equipped with can be corresponding first, second through hole; In described shear sleeve, lower end is provided with the first seam coordinating with described ball seat, and the lower end in described the second body is provided with the second seam coordinating with shear sleeve.
Described the second body is from top to bottom threaded connection and forms successively by center tap, shearing cylinder and lower contact; Through hole and draw-in groove on described the second body are located on center tap, and described shutoff pipe is located in center tap; Described first shears nail is located at described shearing cylinder above, and described shear sleeve is located to be sheared in cylinder; Seam on described the second body is located in described lower contact.
Distance between described the first seam and described ball seat equals the distance between described the first through hole and the second through hole.
Between described the second seam and described shear sleeve, be provided with suitable distance.
The size of described the second lobe piece is greater than the barrel thickness of ball seat.
In described the second lobe door, the second lobe piece is 4 that are circular layout.
The utility model can be implemented fracturing work in the situation that tubing diameter is constant, has the following advantages:
1) possess the function of multistage quantity 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 enough fluid passages compared with common pitching sliding sleeve;
3) after pitching is setting, can guarantee settingly, reliably bear frac pressure;
4) the pitching mode of operation of applicable standard, makes operation generalization, simplifies.
Below in conjunction with accompanying drawing, the utility model is described further.
Brief description of the drawings
Fig. 1 is multistage full-bore pitching sliding bush apparatus structural representation of the present utility model.
Fig. 2 is the structural representation of counting device in the utility model.
Fig. 3 is the operating principle schematic diagram of counting device.
Fig. 4 is the structural representation of plugging device in the utility model.
Fig. 5 is the operating principle schematic diagram of plugging device.
Fig. 6 is multistage full-bore pitching sliding bush apparatus operating principle schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, the multistage full-bore pitching sliding bush apparatus that the utility model provides, the plugging device 2 that comprises counting device 1 and be communicated with counting device 1.
Described counting device, as shown in Figure 2, comprise the first body, the first body is threaded connection and is formed by top connection 101 and cylindrical shell 102, the quantity that is axially arranged with some the first room groove 107, the first room grooves 107 on the inwall of cylindrical shell 102 requires to arrange according to the counting of counter, in cylindrical shell 102, be movably equipped with tubular slip mandrel 106, the two ends up and down of tubular slip mandrel 106 are provided with the first elastic claw head 104 matching with the first room groove 107 on cylindrical shell 102, tubular slip mandrel 106 is provided with between O shape circle 105 and cylindrical shell 102 and forms sealing, the middle part of slip mandrel 106 is provided with, lower two group of first lobe door, every group of first lobe door forms by 4 that are circular layout (or six) first lobe pieces 109 and first sealing ring 108, the size of the first lobe piece 109 is greater than the barrel thickness of slip mandrel 106, the first lobe piece 109 is movably arranged on slip mandrel 106 and matches with the first room groove 107 on pitching 103 and cylindrical shell 102 through slip mandrel 106 barrels, on, distance between distance between two the first lobe pieces 109 in lower two group of first lobe door and adjacent two the first room grooves 107 is unequal, make in the time that one of them the first lobe piece 109 coordinates with a first room groove 107, another the first lobe piece 109 does not match with other the first room groove 107, the first sealing ring 108 is located at the top of the first lobe piece 109 in slip mandrel 106 barrels and matches with pitching 103.
The operating principle of counting device 1 as shown in Figure 2 and Figure 3.Counting device 1 is slip counting structure, is counted by the first room groove 107 numbers on the cylindrical shell 102 matching with the first lobe door mesopetalum piece 109 on slip mandrel 106.Pressurization after steel pitching 103 sealings, 2 groups of lobe pieces 109 that promote slip mandrel 106 are alternately closed and opening action, and steel ball 103 of every mistake completes the cycle one time, promotes elastic claw head 104 and moves down a groove, realizes counting.The concrete action of counting device 1 is as follows:
When relative, can in the first room groove 107, dodge with the first room groove 107 on cylindrical shell 102 when the position of the first lobe piece 109, pitching 103 is passed through, this lobe door is open mode.Otherwise lobe piece 109 is without dodging space, and pitching 103 cannot be passed through, and is closed condition.Counting device 1 in the time of original position as shown in Figure 2, close by the epivalve door in two group of first lobe door, and hypovalve door is opened, and when pitching 103 falls into this device, pitching 103 is withstood by the lobe piece 109 in epivalve door, and form sealing with the first sealing ring 108; Now slide and have O shape circle 105 to seal between mandrel 106 and cylindrical shell 102, tubing pressure promotes slip mandrel 106 relative cylindrical shell 102 down sliding one segment distances, until the lobe piece 109 in epivalve door is opened, lobe piece 109 in hypovalve door is closed, steel ball falls between the lobe piece 109 of two lobe doors, as shown in Fig. 3 (a); Therefore pitching 103 continues to promote slip mandrel 106 relative cylindrical shell 102 down slidings under tubing pressure, passes through smoothly, until the lobe piece 109 in hypovalve door is opened pitching 103 as shown in Fig. 3 (b).Now, whole counting device 1 is by a pitching 103, meter digital of relative cylindrical shell 102 down sliding of slip mandrel 106, the number of meter digital is determined by the number N that is provided for the first room groove 107 of counting as required, for the first room groove 107 of counting, below slip mandrel 106, first the first room groove 107 of the first lobe piece 109 belows of one group of first lobe door is counted, as shown in Figure 2.The first elastic claw head 104 on slip mandrel 106 matches and is mainly used in sliding the location of mandrel 106 in sliding process with the first room groove 107 on cylindrical shell 102.
Described plugging device, as shown in Figure 4, comprises the second body, and the second body is from top to bottom threaded connection and forms successively by center tap 201, shearing cylinder 213 and lower contact 218; Center tap 201 is threaded with the cylindrical shell 102 in counting device 1, center tap 201 is provided with the first through hole 206, the inwall of center tap 201 is provided with lower bayonet slot 203, in center tap 201, be movably equipped with the shutoff pipe 204 matching with the mandrel 106 that slides in described counting device, shutoff pipe 204 is provided with O shape circle 207 and seals with center tap 201; Shear cylinder and be provided with shear sleeve 216 in 213, shear sleeve 216 by the first shearing nail 215 with shear tins 213 and be connected and be positioned at shutoff pipe 204 belows; In between shutoff pipe 204 and shear sleeve 216, be arranged with tubular ball seat 209, ball seat 209 is connected with shutoff pipe 204 by the second shearing nail 208; Between shutoff pipe 204 and shear sleeve 216, be provided with the second room groove 212; In ball seat 209, be provided with the second lobe door, the second lobe door is made up of the second lobe piece 211 and the second sealing ring 210, second lobe piece 211 4 (or six) for being circular layout, the size of the second lobe piece 211 is greater than the barrel thickness of ball seat 209, the second lobe piece 211 is movably arranged on ball seat 209 and matches with pitching and the second room groove 212 through the barrel of ball seat 209, the second sealing ring 210 is that two upper and lowers that are located at respectively the second lobe piece 211 in ball seat barrel match with pitching, and ball seat 209 is provided with O shape circle 219 and seals with shear sleeve 216; Shutoff pipe 204 is provided with the second elastic claw head 202 and matches with the draw-in groove 203 being located on center tap 201 inwalls, shutoff pipe 204 be provided with can with center tap 201 on the second through hole 205 of the first through hole 206 correspondences; The distance L 2 that the interior lower end of shear sleeve 216 is provided with between the first seam 214, the first seams 214 and the ball seat 209 coordinating with ball seat 209 equals the distance L 1 between the first through hole 206 and the second through hole 205; Lower end in lower contact 218 is provided with between the second seam 217, the second seams 217 of coordinating with shear sleeve 216 and shear sleeve 216 and is provided with suitable distance L 3.
The operating principle of plugging device 2 as shown in Figure 4, Figure 5, plugging device 2 in the time of original state as shown in Figure 4, at this moment the second elastic claw head 202 of shutoff pipe 204 is positioned at the upper draw-in groove 203 on center tap 201 inwalls, the second lobe piece 211 in the second lobe door on ball seat 209 is faced toward by the vacant slot 212 forming between center tap 201 and shear sleeve 216, in open mode.Under the mandrel 106 that slides in counting device 1 triggers, as shown in Fig. 5 (a), shutoff pipe 204 is pushed, center tap 201 moves down relatively, now the second lobe door on ball seat 209 is closed, and the second lobe piece 211 is return in ball seat 209, and the O shape circle 219 on ball seat 209 enters shear sleeve 216 sealing surfaces, pitching 103 falls from counting device 1, falls in ball seat 209 and forms bottom shutoff with the second sealing ring 210.As shown in Fig. 5 (b), under the continuation effect of tubing pressure, pitching 103 drags ball seat 209 and shutoff pipe 204 until the second elastic claw head 202 of shutoff pipe 204 enters in the lower bayonet slot 203 on center tap 201 inwalls, second shears nail 208 cuts off, and at this moment the second through hole 205, the first through hole 206 on shutoff pipe 204 and center tap 201 aligns and form oil pipe passage; Then ball seat 209 falls into shear sleeve 216, and cut off the final and shear sleeve 216 of the first shearing nail 215 and together fall in lower contact 218, as shown in Fig. 5 (c), vacant slot 212 sizes that now form between center tap 201 and shear sleeve 216 extend, make lower floor's pitching 103 pass through smoothly this ball seat 209, as shown in Fig. 5 (d).
Plugging device 2 is before being triggered, all pitchings can be passed through smoothly, when being counted after device triggering, pitching is by shutoff aperture, and under tubing pressure effect, open oil pipe passage by the second through hole 205, the first through hole 206 on shutoff pipe 204 in plugging device 2 and center tap 201, make oil pipe internal pressure be passed to payzone, start fracturing work.
The situation of multistage full-bore pitching sliding bush apparatus of the present utility model in the time of practical application is as shown in Fig. 6 (a)-(e), first determine the number of pitching sliding bush apparatus according to pressure break payzone number, before installing, use in advance special tool to set the numerical value of the counting device meter digital of this layer of position aboveground according to layer position, for the number N of the first room groove 107 of counting, again by the pitching sliding bush apparatus equating with the numerical value of meter digital successively connected pipes lower going-into-well, the oil pipe that will be provided with pitching sliding bush apparatus with packer D is isolated formation pressure break payzone, the sliding bush apparatus of pitching shown in Fig. 6 is 3, comprise counting device 1A-1C, plugging device 2A-2C.When use, drop into the steel pitching 103 of supporting formed objects, when the counting device of each layer of position N is passed through in pitching successively, trigger once counting action R, be counted as S=N-R, R=0,1,2,3 ... N, until pitching falls into undermost pitching sliding bush apparatus, trigger counting device in this pitching sliding bush apparatus and count for the last time action, and start plugging device.Along with tubing pressure raises, start undermost fracturing work.Pitching of every input afterwards, successively carries out fracturing work from lower to upper.After operation completes, pitching is returned to ground with oil pipe inner fluid.
Claims (10)
1. a counting device, it is characterized in that comprising the first body, be actively installed in the first body and with tubular slip mandrel and the pitching of the first body sealing, on the inwall of described the first body, be axially arranged with some the first room grooves, described slip mandrel is provided with, lower two group of first lobe door, every group of first lobe door is by the first lobe piece and the first sealing ring composition, described the first lobe piece is movably arranged on slip mandrel and matches with the first room groove on pitching and the first body through slide cores shaft wall, described the first sealing ring is located at the top of the first lobe piece in barrel and matches with pitching.
2. counting device according to claim 1, is characterized in that described the first body is threaded connection and is formed by top connection and cylindrical shell, and described the first room groove and slip mandrel are located on cylindrical shell.
3. counting device according to claim 1 and 2, is characterized in that the two ends up and down of described slip mandrel are provided with the first elastic claw head matching with the first room groove on cylindrical shell.
4. counting device according to claim 3, is characterized in that the size of described the first lobe piece is greater than the barrel thickness of slip mandrel.
5. counting device according to claim 4, is characterized in that the distance between distance and adjacent two the first room grooves between two the first lobe pieces in described upper and lower two group of first lobe door is unequal.
6. one kind adopts the multistage full-bore pitching sliding bush apparatus of counting device as claimed in claim 1, it is characterized in that the plugging device that comprises described counting device and be communicated with counting device, described plugging device comprises the second body, be actively installed in the second body with in described counting device, slide that mandrel matches and with the shutoff pipe of the second body sealing, be located in the second body and by the first shearing nail and be connected the shear sleeve that is positioned at shutoff pipe below with the second body, be set in shutoff pipe and shear sleeve interior and follow closely by the second shearing the tubular ball seat being connected with shutoff pipe; Between described shutoff pipe and shear sleeve, be provided with the second room groove; In described ball seat, be provided with the second lobe door, the second lobe door is made up of the second lobe piece and the second sealing ring, described the second lobe piece is movably arranged on ball seat and matches with pitching and the second room groove through ball seat barrel, and described the second sealing ring is that two upper and lowers that are located at respectively the second lobe piece in ball seat barrel match with pitching; The inwall of described the second body is provided with draw-in groove, and described shutoff pipe is provided with the second elastic claw head and matches with the draw-in groove on the second body, on shutoff pipe and the second body, be respectively equipped with can be corresponding first, second through hole; In described shear sleeve, lower end is provided with the first seam coordinating with described ball seat, and the lower end in described the second body is provided with the second seam coordinating with shear sleeve.
7. multistage full-bore pitching sliding bush apparatus according to claim 6, is characterized in that described the second body is threaded connection and forms successively by center tap, shearing cylinder and lower contact from top to bottom; Through hole and draw-in groove on described the second body are located on center tap, and described shutoff pipe is located in center tap; Described first shears nail is located at described shearing cylinder above, and described shear sleeve is located to be sheared in cylinder; Seam on described the second body is located in described lower contact.
8. according to the multistage full-bore pitching sliding bush apparatus described in claim 6 or 7, it is characterized in that the distance between described the first seam and described ball seat equals the distance between described the first through hole and the second through hole.
9. multistage full-bore pitching sliding bush apparatus according to claim 8, is characterized in that being provided with suitable distance between described the second seam and described shear sleeve.
10. multistage full-bore pitching sliding bush apparatus according to claim 9, is characterized in that the size of described the second lobe piece is greater than the barrel thickness of ball seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267256.4U CN203847090U (en) | 2014-05-23 | 2014-05-23 | Counting device and multistage full-port ball-casting slide bushing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267256.4U CN203847090U (en) | 2014-05-23 | 2014-05-23 | Counting device and multistage full-port ball-casting slide bushing device |
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| CN203847090U true CN203847090U (en) | 2014-09-24 |
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| CN201420267256.4U Active CN203847090U (en) | 2014-05-23 | 2014-05-23 | Counting device and multistage full-port ball-casting slide bushing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967468A (en) * | 2014-05-23 | 2014-08-06 | 湖南唯科拓石油科技服务有限公司 | Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device |
| CN111088959A (en) * | 2019-07-10 | 2020-05-01 | 东北石油大学 | Countable underground full-bore fracturing sliding sleeve |
-
2014
- 2014-05-23 CN CN201420267256.4U patent/CN203847090U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967468A (en) * | 2014-05-23 | 2014-08-06 | 湖南唯科拓石油科技服务有限公司 | Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device |
| CN103967468B (en) * | 2014-05-23 | 2017-01-18 | 湖南唯科拓石油科技服务有限公司 | Counting device and multi-stage full-drift-diameter injection ball sliding sleeve device |
| CN111088959A (en) * | 2019-07-10 | 2020-05-01 | 东北石油大学 | Countable underground full-bore fracturing sliding sleeve |
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