CN203978383U - Separate stratum fracfturing valve - Google Patents
Separate stratum fracfturing valve Download PDFInfo
- Publication number
- CN203978383U CN203978383U CN201420349836.8U CN201420349836U CN203978383U CN 203978383 U CN203978383 U CN 203978383U CN 201420349836 U CN201420349836 U CN 201420349836U CN 203978383 U CN203978383 U CN 203978383U
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- China
- Prior art keywords
- top connection
- sliding sleeve
- hole
- runner
- groove
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- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 abstract description 9
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 5
- 208000014674 injury Diseases 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000013467 fragmentation Methods 0.000 abstract description 4
- 238000006062 fragmentation reaction Methods 0.000 abstract description 4
- 239000004576 sand Substances 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to underground fracture valve technology field, is a kind of separate stratum fracfturing valve, and it comprises top connection, lower contact and sliding sleeve; In the upper inside wall of top connection, one is fixed with spacing ring, in top connection below spacing ring, circumferentially there is the runner through hole of at least one, runner through hole is and axially has 30 ° to the through hole under 60 ° of angles oblique, installation groove is arranged at the bottom of top connection, and the external diameter of lower contact and the external diameter of top connection match.The utility model reasonable and compact in structure, easy to use, adopt pitching to suppress mode, when pressure break, do not need to operate tubing string, simple to operate, the cooperation of draw-in groove and pawl head can anti-anti-skid sheath be opened on runner through hole rear defence anti-skid sheath and is moved, fluid passage adopts and axially has the through hole of angle under oblique, can prevent the impact injury of swiftly flowing load fluid to sleeve pipe, also reduce the risk of fracturing sand shock sleeve pipe fragmentation simultaneously, be a kind of separate stratum fracfturing valve of practicality and high efficiency.
Description
Technical field
the utility model relates to underground fracture valve technology field, is a kind of separate stratum fracfturing valve.
Background technology
separate stratum fracfturing is the important process technology that can effectively improve Oil/gas Well production status in oilfield explorating developing process.Along with the progress of petroleum exploration and development, more Oil/gas Well need to improve output by the enforcement of underground fracture technological measure; For very fine and close stratum, need to carry out well stimulation and just can obtain stable high yield and stable yields.Beating after a bite Oil/gas Well; conventionally can penetrate multiple oil-gas Layer; and the characteristics such as the physical chemistry of each oil-gas Layer are not quite similar; if disposable, the oil-gas Layer of opening is carried out to general acid fracturing; likely transform liquid and preferentially enter the reservoir of good penetrability, and transformation potentiality transformation liquid large, that the reservoir of poor permeability enters is considerably less, does not even enter; can not reach the object of transformation, adopt the method for separate zone stimulation to solve beyond doubt the effective ways of this difficult problem.Traditional separate stratum fracfturing valve arrangement complexity, sliding sleeve can not be fixed, and heads straight for hole mode and is unfavorable for the protection to sleeve pipe and proppant.
Summary of the invention
the utility model provides a kind of separate stratum fracfturing valve, has overcome the deficiency of above-mentioned prior art, and it can effectively solve traditional separate stratum fracfturing valve arrangement complexity, sliding sleeve can not fix, head straight for the problem that hole mode is unfavorable for the protection to sleeve pipe and proppant.
the technical solution of the utility model realizes by following measures: a kind of separate stratum fracfturing valve, comprises top connection, lower contact and sliding sleeve, in the upper inside wall of top connection, one is fixed with spacing ring, in top connection below spacing ring, circumferentially there is the runner through hole of at least one, runner through hole is and axially has 30 ° to the through hole under 60 ° of angles oblique, installation groove is arranged at the bottom of top connection, the external diameter of lower contact and the external diameter of top connection match, in the middle part of lower contact and upper inside wall, there is internal diameter increases successively getting out of a predicament or an embarrassing situation and topping bar, the inwall of topping bar is fixedly installed togather with installation groove, the internal diameter of getting out of a predicament or an embarrassing situation is less than top connection internal diameter, in the lower inner wall of getting out of a predicament or an embarrassing situation, there is draw-in groove, the external diameter of sliding sleeve and the internal diameter of top connection match, sliding sleeve is arranged in the top connection inner chamber below spacing ring and is fixedly installed togather by the shear pin of at least one with top connection, the upper end of sliding sleeve and the lower end of spacing ring offset, the lower end of sliding sleeve is positioned at runner through hole below, distance and sliding sleeve lower end to the distance of the upper surface of topping bar between sliding sleeve upper end to runner through hole lower end match, the lower end edge circumference one of sliding sleeve is intervally distributed with blade tooth, on the lower end outer wall of blade tooth, be fixed with pawl head, pawl head to distance and sliding sleeve lower end to the distance of the upper surface of topping bar of draw-in groove matches.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned runner through hole is and the through hole axially having under 45 ° of angles oblique.
on the getting out of a predicament or an embarrassing situation of above-mentioned draw-in groove top, there is mounting groove, in mounting groove, be set with the pressure ring that internal diameter is less than respectively draw-in groove internal diameter and top connection internal diameter, is greater than lower contact internal diameter.
the shear pin that above-mentioned sliding sleeve and top connection are logical four is fixedly installed togather; Or/and, in the top connection below spacing ring, be distributed with four runner through holes along even circumferential.
above-mentionedly on the sliding sleeve outer wall of shear pin above and below, be installed with sealing ring, groove is installed and top bar between be installed with sealing ring.
between above-mentioned inwall of topping bar and installation groove, be fixedly installed togather by screw thread, there is internal thread the upper end of top connection, and there is external screw thread the lower end of lower contact.
the utility model reasonable and compact in structure, easy to use, adopt pitching to suppress mode, when pressure break, do not need to operate tubing string, simple to operate, the cooperation of draw-in groove and pawl head can anti-anti-skid sheath be opened on runner through hole rear defence anti-skid sheath and is moved, fluid passage adopts and axially has the through hole of angle under oblique, can prevent the impact injury of swiftly flowing load fluid to sleeve pipe, also reduce the risk of fracturing sand shock sleeve pipe fragmentation simultaneously, be a kind of separate stratum fracfturing valve of practicality and high efficiency.
Brief description of the drawings
the master that accompanying drawing 1 is the utility model most preferred embodiment looks sectional structure schematic diagram.
master when accompanying drawing 2 locks for sliding sleeve in the utility model looks sectional structure schematic diagram.
coding in accompanying drawing is respectively: 1 is top connection, and 2 is spacing ring, and 3 is runner through hole, and 4 is lower contact, and 5 for getting out of a predicament or an embarrassing situation, and 6 for topping bar, and 7 is draw-in groove, and 8 is sliding sleeve, and 9 is shear pin, and 10 is blade tooth, and 11 is pawl head, and 12 is pitching, and 13 is pressure ring, and 14 is sealing ring.
Detailed description of the invention
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2, this separate stratum fracfturing valve comprises top connection 1, lower contact 5 and sliding sleeve 8, in the upper inside wall of top connection 1, one is fixed with spacing ring 2, in top connection 1 below spacing ring 2, circumferentially there is the runner through hole 3 of at least one, runner through hole 3 for axially have 30 ° to the through hole under 60 ° of angles oblique, installation groove is arranged at the bottom of top connection 1, the external diameter of the external diameter of lower contact 4 and top connection 1 matches, what in the middle part of lower contact 4 and upper inside wall, have that internal diameter increases successively gets out of a predicament or an embarrassing situation 5 and top bar 6, top bar 6 inwall with groove be installed be fixedly installed togather, 5 the internal diameter of getting out of a predicament or an embarrassing situation is less than top connection 1 internal diameter, in 5 the lower inner wall of getting out of a predicament or an embarrassing situation, there is draw-in groove 7, the internal diameter of the external diameter of sliding sleeve 8 and top connection 1 matches, sliding sleeve 8 is positioned at top connection 1 inner chamber of spacing ring 2 belows and is fixedly installed togather by the shear pin 9 of at least one with top connection 1, the lower end of the upper end of sliding sleeve 8 and spacing ring 2 offsets, the lower end of sliding sleeve 8 is positioned at runner through hole 3 belows, distance between sliding sleeve 8 upper ends to runner through hole 3 lower ends and sliding sleeve 8 lower ends to the distance of 6 upper surfaces of topping bar matches, the lower end edge circumference one of sliding sleeve 8 is intervally distributed with blade tooth 10, on the lower end outer wall of blade tooth 10, be fixed with pawl head 11, pawl head 11 to distance and sliding sleeve 8 lower ends to the distance of 6 upper surfaces of topping bar of draw-in groove 7 matches.When use, each parts of the present utility model are cleaned up, each parts surface is smeared to lubricating grease, on the outer wall of top connection 1 and lower contact 4, need not smear lubricating grease, top connection 1 is clamped on pipe wrench, sliding sleeve 8 is packed in top connection 1, pack shear pin 9 into, blade tooth 10 down, tighten lower contact 4 with pipe wrench, now sliding sleeve 8 is closed runner through hole 3, inner chamber is communicated with, in the time that needs carry out separate stratum fracfturing, the utility model is arranged between two separators, drop into external diameter and be less than spacing ring 2 internal diameters, be greater than the pitching 12 of sliding sleeve 8 internal diameters, drop into after pitching 12, 12 upper ends at sliding sleeve 8 of pitching, sliding sleeve 8 is under pitching 12 and pressure-acting, cut off shear pin 9, pitching 12 and sliding sleeve 8 all move downward, when pawl head 11 enters draw-in groove 7 when interior, the lower end seat of sliding sleeve 8 is on 5 the upper surface of getting out of a predicament or an embarrassing situation, now sliding sleeve 8 is steady by card, runner through hole 3 is positioned at sliding sleeve 8 tops, like this, runner through hole 3 is just opened, inner chamber is closed.Shear pin 9 between sliding sleeve 8 and top connection 1 can be adjusted by shear force according to actual needs; The cooperation of draw-in groove 7 and pawl head 11 can anti-anti-skid sheath 8 be opened on runner through hole 3 rear defence anti-skid sheaths 8 and is moved, and can be good at like this sliding sleeve to lock; Described fluid passage 3 adopts and axially has the oblique lower through hole of angle, can prevent the impact injury of swiftly flowing load fluid to sleeve pipe, has also reduced the risk of fracturing sand shock sleeve pipe fragmentation simultaneously.
can according to actual needs, above-mentioned separate stratum fracfturing valve be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, runner through hole 3 for the through hole axially having under 45 ° of angles oblique.Adopt the runner through hole 3 of 45 ° of angles can make swiftly flowing load fluid drop to minimum to the impact injury of sleeve pipe.
as shown in accompanying drawing 1,2, getting out of a predicament or an embarrassing situation on 5 of draw-in groove 7 tops has mounting groove, is set with the pressure ring 13 that internal diameter is less than respectively draw-in groove 7 internal diameters and top connection 1 internal diameter, is greater than lower contact 4 internal diameters in mounting groove.What replace with pressure ring 13 that internal diameter is less than top connection 1 internal diameter gets out of a predicament or an embarrassing situation 5, be convenient to when the utility model work is complete while reclaiming, can first pressure ring 12 be taken out, then take out smoothly sliding sleeve 8 and bottom blade tooth 10, pawl head 11, clean after maintenance, can reuse, meanwhile, also convenient processing.
as shown in accompanying drawing 1,2, sliding sleeve 8 is fixedly installed togather with the shear pin 9 that top connection 1 is led to four; Or/and, in the top connection 1 below spacing ring 2, be distributed with four runner through holes 3 along even circumferential.Between sliding sleeve 8 and top connection 1, be fixedly installed togather by four shear pins 9, can play under normal circumstances stable effect, but the shear pin 9 between sliding sleeve 8 and top connection 1 can be adjusted by shear force according to actual needs.
as shown in accompanying drawing 1,2, on sliding sleeve 8 outer walls of shear pin 9 above and belows, be installed with sealing ring 14, between 6, be installed with sealing ring 14 groove being installed and being topped bar.Sealing ring 14 can play good sealing function, prevents that pressure release from causing suppressing failure suppressing in process.
as shown in accompanying drawing 1,2,6 the inwall and installing between groove of topping bar is fixedly installed togather by screw thread, and there is internal thread the upper end of top connection 1, and there is external screw thread the lower end of lower contact 4.The internal thread of top connection 1 upper end facilitates top connection 1 to be connected with running string, and the external screw thread of lower contact 4 lower ends facilitates lower contact 4 to be connected with bottom tubing string, is threaded and is easily installed in dismounting.
the utility model adopts pitching to suppress mode, when pressure break, do not need to operate tubing string, simple to operate, the cooperation of draw-in groove 7 and pawl head 11 can anti-anti-skid sheath 8 be opened on runner through hole 3 rear defence anti-skid sheaths 8 and is moved, fluid passage 3 adopts and axially has the through hole of angle under oblique, can prevent the impact injury of swiftly flowing load fluid to sleeve pipe, also reduce fracturing sand simultaneously and clash into the risk of sleeve pipe fragmentation, be a kind of separate stratum fracfturing valve of rational in infrastructure, practicality and high efficiency.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (10)
1. a separate stratum fracfturing valve, is characterized in that comprising top connection, lower contact and sliding sleeve, in the upper inside wall of top connection, one is fixed with spacing ring, in top connection below spacing ring, circumferentially there is the runner through hole of at least one, runner through hole is and axially has 30 ° to the through hole under 60 ° of angles oblique, installation groove is arranged at the bottom of top connection, the external diameter of lower contact and the external diameter of top connection match, in the middle part of lower contact and upper inside wall, there is internal diameter increases successively getting out of a predicament or an embarrassing situation and topping bar, the inwall of topping bar is fixedly installed togather with installation groove, the internal diameter of getting out of a predicament or an embarrassing situation is less than top connection internal diameter, in the lower inner wall of getting out of a predicament or an embarrassing situation, there is draw-in groove, the external diameter of sliding sleeve and the internal diameter of top connection match, sliding sleeve is arranged in the top connection inner chamber below spacing ring and is fixedly installed togather by the shear pin of at least one with top connection, the upper end of sliding sleeve and the lower end of spacing ring offset, the lower end of sliding sleeve is positioned at runner through hole below, distance and sliding sleeve lower end to the distance of the upper surface of topping bar between sliding sleeve upper end to runner through hole lower end match, the lower end edge circumference one of sliding sleeve is intervally distributed with blade tooth, on the lower end outer wall of blade tooth, be fixed with pawl head, pawl head to distance and sliding sleeve lower end to the distance of the upper surface of topping bar of draw-in groove matches.
2. separate stratum fracfturing valve according to claim 1, is characterized in that runner through hole is and the through hole axially having under 45 ° of angles oblique.
3. separate stratum fracfturing valve according to claim 1 and 2, is characterized in that there is mounting groove on the getting out of a predicament or an embarrassing situation of draw-in groove top, and is set with the pressure ring that internal diameter is less than respectively draw-in groove internal diameter and top connection internal diameter, is greater than lower contact internal diameter in mounting groove.
4. separate stratum fracfturing valve according to claim 1 and 2, is characterized in that the shear pin of logical four of sliding sleeve and top connection is fixedly installed togather; Or/and, in the top connection below spacing ring, be distributed with four runner through holes along even circumferential.
5. separate stratum fracfturing valve according to claim 3, is characterized in that the shear pin of logical four of sliding sleeve and top connection is fixedly installed togather; Or/and, in the top connection below spacing ring, be distributed with four runner through holes along even circumferential.
6. separate stratum fracfturing valve according to claim 1 and 2, is characterized in that being installed with sealing ring on the sliding sleeve outer wall of shear pin above and below, is installed with sealing ring at installation groove with between topping bar.
7. separate stratum fracfturing valve according to claim 3, is characterized in that being installed with sealing ring on the sliding sleeve outer wall of shear pin above and below, is installed with sealing ring at installation groove with between topping bar.
8. separate stratum fracfturing valve according to claim 4, is characterized in that being installed with sealing ring on the sliding sleeve outer wall of shear pin above and below, is installed with sealing ring at installation groove with between topping bar.
9. separate stratum fracfturing valve according to claim 5, is characterized in that being installed with sealing ring on the sliding sleeve outer wall of shear pin above and below, is installed with sealing ring at installation groove with between topping bar.
10. separate stratum fracfturing valve according to claim 9, is characterized in that the inwall of topping bar and installs between groove being fixedly installed togather by screw thread, and there is internal thread the upper end of top connection, and there is external screw thread the lower end of lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349836.8U CN203978383U (en) | 2014-06-28 | 2014-06-28 | Separate stratum fracfturing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349836.8U CN203978383U (en) | 2014-06-28 | 2014-06-28 | Separate stratum fracfturing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978383U true CN203978383U (en) | 2014-12-03 |
Family
ID=51975842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420349836.8U Expired - Lifetime CN203978383U (en) | 2014-06-28 | 2014-06-28 | Separate stratum fracfturing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696972A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Erosion-resistant sliding sleeve |
| WO2017009765A1 (en) * | 2015-07-14 | 2017-01-19 | Sertecpet S.A. | Casing for the circulation of fluids at the bottom of a well, with a downward-facing opening, for oil wells |
| CN112727379A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Underground pipe column locking connector and construction method thereof |
-
2014
- 2014-06-28 CN CN201420349836.8U patent/CN203978383U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017009765A1 (en) * | 2015-07-14 | 2017-01-19 | Sertecpet S.A. | Casing for the circulation of fluids at the bottom of a well, with a downward-facing opening, for oil wells |
| US10900325B2 (en) | 2015-07-14 | 2021-01-26 | Sertecpet S.A. | Casing for the circulation of fluids at the bottom of a well, with a downward-facing opening, for oil wells |
| CN105696972A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Erosion-resistant sliding sleeve |
| CN105696972B (en) * | 2016-01-20 | 2018-03-30 | 中国石油化工股份有限公司 | A kind of erosion resistance sliding sleeve |
| CN112727379A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Underground pipe column locking connector and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
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| CX01 | Expiry of patent term |