CN208122836U - A kind of High Pressure Water Injection String - Google Patents
A kind of High Pressure Water Injection String Download PDFInfo
- Publication number
- CN208122836U CN208122836U CN201820274130.8U CN201820274130U CN208122836U CN 208122836 U CN208122836 U CN 208122836U CN 201820274130 U CN201820274130 U CN 201820274130U CN 208122836 U CN208122836 U CN 208122836U
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- pipe
- track groove
- water injection
- high pressure
- top connection
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Abstract
The utility model discloses a kind of High Pressure Water Injection Strings, including be sequentially connected safety joint, support anchor, inflatable packer, centralizer, connection sliding sleeve, sleeve type flow controller, seat of receiving, the support anchor includes the top connection being sequentially connected, track pipe, lower contact, in track, pipe is outer is set with slip assemblies, righting block assembly and sliding pin component, and short track groove and long track groove are equipped on the pipe of track.Support anchor in the High Pressure Water Injection String of the utility model applies ballast by measure tubing string come support tube column, overcome the flexible wriggling of tubing string caused by the pressure and temp of the injecting process, the support anchor is without sealing element, ensure the long term seal of the injecting process, it is set in the sleeve type flow controller and tests pipe pitching opener, choke pressure is formed by spring pressure after unlatching, sets the throttling of K344 packer, the seat of receiving is the sliding sleeve accepting sleeve type flow controller and hitting down.
Description
Technical field
The utility model relates to a kind of down-hole string more particularly to a kind of High Pressure Water Injection Strings.
Background technique
In high pressure and super-pressure water filling, generallys use the compression packers such as Y241, Y221 or Y453 and carry out high pressure injection
Water, found in the field uses such as Jiang-Han Area, triumph such packer water filling when validity period it is shorter, and unseal when deblocking load it is big,
It can not rise even and cause overhaul.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of solution in view of the deficiency of the prior art
Envelope load is small, can satisfy the High Pressure Water Injection String of the long-acting steady operation of production requirement energy.
Technical solution used by the utility model is：A kind of High Pressure Water Injection String, including be sequentially connected safety joint,
Support anchor, inflatable packer, centralizer, connection sliding sleeve, sleeve type flow controller, seat of receiving, it is characterised in that：The support anchor
Including be sequentially connected top connection, track pipe, lower contact, outer slip assemblies, righting block assembly and the cunning of being set with of pipe in track
Pin assemblies are equipped with short track groove and long track groove on the pipe of track, and under original state, the slip assemblies and righting block assembly are logical
The sliding pin for crossing sliding pin component limits in short track groove, by the switching between long track groove and short track groove, realizes support anchor
Seat card and deblocking.
According to the above technical scheme, the sleeve type flow controller includes top connection and lower contact, and the two is connected, in top connection
Interior be equipped with tests pipe pitching opener, and the pipe pitching opener of testing includes being arranged with to test pipe sliding sleeve in top connection, described
It tests pipe sliding sleeve and matches with pipe ball is tested, hydrophthalmia is equipped in top connection, the pipe sliding sleeve of testing can seal up hydrophthalmia, and pass through shearing
Pin is fixed in top connection, is set with spring and valve outside top connection, and the elastic force of the spring is connected to down valve to connect
The upper end of head, is equipped with gap between the upper end inner wall of lower contact and top connection, which is connected to hydrophthalmia.
According to the above technical scheme, the lower end for supporting the top connection of anchor is reverse tapered shape, the slips shape phase with slip assemblies
Cooperation.
According to the above technical scheme, the short track groove and long track groove are arranged in parallel, and the two passes through in the lower end of track pipe
Switching slot connection, the switching slot are equipped with to the inclined guide gear in side in the lower end of track groove, are arranged oppositely with guide gear
Tooth is kept off, the tooth socket of the gear tooth is corresponding with the tooth tip of guide gear, tooth body of the tooth tip for keeping off tooth towards guide gear.
According to the above technical scheme, the upper end of the lower contact of sleeve type flow controller is equipped with the up big and down small stepped hole of internal diameter, institute
Valve is stated to be connected at the step of stepped hole.
According to the above technical scheme, the inflatable packer is K344 packer.
According to the above technical scheme, the slip assemblies include slip spider, and slips is configured on slip spider, is matched outside slips
It is equipped with circlip and slips ring, the righting block assembly includes supporting positive cover and wiper block, is equipped between supporting positive cover and wiper block
Inner spring and outer spring are connected between the supporting positive cover and slip spider by pin, and the sliding pin component includes sliding pin seat, in cunning
It is equipped with sliding pin and short track groove in key seat or the sliding of long track groove configures, magnetic is helped under being configured with outside sliding pin seat, helps magnetic under described
It is fixedly connected with supporting positive cover.
It is had the beneficial effect that acquired by the utility model：
1, the support anchor in the High Pressure Water Injection String of the utility model applies ballast by measure tubing string come support tube column, gram
The flexible wriggling of tubing string caused by the pressure and temp of the injecting process is taken, the support anchor is without sealing element, it is ensured that the length of the injecting process
Phase leakproofness, the inflatable packer, packing element do skeleton using steel disc, and long packing element type can hold high temperature and pressure, and have certain anchor
Determine power, hydraulic setting, pressure release deblocking, highly-safe, the connection sliding sleeve is opened using hydraulic stuff, when for taking tubing string
It is connected to oil jacket annulus, sets pitching opener in the sleeve type flow controller, choke pressure is formed by spring pressure after unlatching,
Set the throttling of K344 packer, the seat of receiving is the sliding sleeve accepting sleeve type flow controller and hitting down；
3, pipe pitching opener is tested in design on tubing string, and the close of go into the well oil pipe and tool can be examined before packer setting
Sealing property.
4, the K344 packer that the utility model is selected is good using long packing element type seal compatibility, can be used for covering damage, casing deformation well,
Can meet the needs of different well's conditions water filling.
5, support anchor is assembled in water injection string, and packer also has certain anchorage force, when can more effectively overcome water filling
String creep caused by pressure oscillation is conducive to extend tubing string sealing validity period.
6, water injection string hydraulic setting, pressure release deblocking, unseals highly-safe
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the structure chart of a support anchor in the utility model.
Fig. 3 is the track deployed configuration schematic diagram of track pipe in the utility model.
Fig. 4 is the structural schematic diagram of sleeve type flow controller in the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of High Pressure Water Injection String is present embodiments provided, including safety joint 1, the support being sequentially connected
Anchor 2, inflatable packer 3, centralizer 4, connection sliding sleeve 5, sleeve type flow controller 6, seat 7 of receiving.
As shown in Figure 2,3, the support anchor 2 includes top connection 201, track pipe 2014, the lower contact 2015 being sequentially connected,
It is set with slip assemblies, righting block assembly and sliding pin component outside track pipe 2015, short track is equipped on track pipe 2014
Slot 2016 and long track groove 2017, under original state, the slip assemblies and righting block assembly are limited by the sliding pin of sliding pin component
, by the switching between long track groove and short track groove, seat card and the deblocking of support anchor are realized in short track groove in position.
The lower end for supporting the top connection 201 of anchor is reverse tapered shape, is matched with the slips shape of slip assemblies.The slips
Component includes slip spider 205, and slips 202 is configured on slip spider, and circlip 203 and slips ring are configured with outside slips 202
204, the righting block assembly includes supporting positive cover 206 and wiper block 207, is equipped between supporting positive cover 206 and wiper block 207 interior
Spring 209 and outer spring 208, are connected between the supporting positive cover 206 and slip spider 205 by pin, and the sliding pin component includes
Sliding pin seat 2011, is equipped with sliding pin 2012 and short track groove in sliding pin seat 2011 or the sliding of long track groove configures, outside sliding pin seat
It is configured with down and helps magnetic 2013, magnetic 2013 is helped to be fixedly connected with supporting positive cover 206 by screw 2010 under described.The short track groove
2016 and long track groove 2017 be arranged in parallel, the two the lower end of track pipe by switching slot connect, the switching slot is in track
The lower end of slot is equipped with to the inclined guide gear 2018 in side, the gear tooth 2019 being arranged oppositely with guide gear, the gear tooth 2019
Tooth socket is corresponding with the tooth tip of guide gear 2018, tooth body of the tooth tip for keeping off tooth 2019 towards guide gear.
When entering well, wiper block 208 is close to casing, sliding pin 2012 in short track groove 2016, when tripping in place after, above mention
1.5m, during above mentioning, slip assemblies and righting block assembly and sliding pin component are close to casing, and sliding pin 2012 passes through along short track slot
It is slid into long track slot after switching slot, sliding pin 2012 changes in long track groove, so that slips 202 be strutted, struts slips 202
Anchor lives casing, continues to push, and can apply certain ballast to tubing string.By the commutation between length slot, the seat card of support anchor is realized
With unfreezing, and anchor is supported without sealing element to be easier to ensure that long-term seal.
As shown in figure 4, the sleeve type flow controller includes top connection 601 and lower contact 6011, the two is connected, and connects upper
It being equipped in head and tests pipe pitching opener, the pipe pitching opener of testing includes being arranged with to test pipe sliding sleeve 609 in top connection,
It is described to test pipe sliding sleeve 609 and match with pipe ball 605 is tested, hydrophthalmia 6012 is equipped in top connection 601, it is described to test 609 energy of pipe sliding sleeve
Hydrophthalmia is sealed up, and is fixed in top connection 601 by shear pin 608, adjustment cap 603, bullet are set with outside top connection 601
Spring 604 and valve 606, adjustment cap 603 are fixed in top connection 601 by pin 602, and the elastic force of the spring 604 makes valve
606 are connected to the upper end of lower contact 6011, and gap is equipped between the upper end inner wall of lower contact and top connection, which is connected to water
Eye.The upper end of lower contact 6011 is equipped with the up big and down small stepped hole of internal diameter, and the valve is connected at the step of stepped hole.
Under tubing string in place after, investment test pipe ball 605, test pipe ball 605 on testing pipe sliding sleeve 609, examine water injection string whether
It is closed.After testing pipe qualification, oily overpressure is improved, shear pin 608 is cut, injects water through the hydrophthalmia 6012 in top connection 601
It shifts 606 uplink of valve onto, presses off spring 604, realize water filling, the choke pressure that spring provides can allow inflatable packer abundant
It sets.
In the present embodiment, the inflatable packer is K344 packer, is existing inflatable packer.It is described
K344 packer includes top connection, central tube, upper rubber tube seat, packing element, lower rubber cylinder seat and lower contact, wired in the central tube to cut
Striped offer is provided and sets channel, the packing element includes interior packing element and outer packing element, uses steel disc to do skeleton between inside and outside packing element, has one
Fixed anchorage force.
Design position is arrived under tubing string, that ￠ 35mm is thrown into oil pipe tests pipe ball 605, waits after testing pipe ball 605 in place, from well head
Liquid is squeezed into, when being forced into 30MPa, observation 30min examines the sealing situation of oil pipe, while fluid pressure acts on K344 packing
It on device, is in packer and sets state, observe casing flooded conditions, such as without pressure drop and casing is without overflow, then destroy and test pipe cunning
Set 609 realizes water filling.
When needing to unseal, first anti-flushing well, flushing fluid enters oil pipe, oily casing pressure balanced, K344 envelope from pin, seat of receiving
It is unsealed every device, upper lifting pipe post, completes deblocking process.
Claims (7)
1. a kind of High Pressure Water Injection String, including be sequentially connected safety joint, support anchor, inflatable packer, centralizer, connection
Sliding sleeve, sleeve type flow controller, seat of receiving, it is characterised in that：The support anchor include the top connection being sequentially connected, track pipe, under
Connector, in track, pipe is outer is set with slip assemblies, righting block assembly and sliding pin component, be equipped on the pipe of track short track groove and
Long track groove, under original state, the slip assemblies and righting block assembly are limited by the sliding pin of sliding pin component in short track groove
In, by the switching between long track groove and short track groove, realize seat card and the deblocking of support anchor.
2. High Pressure Water Injection String according to claim 1, it is characterised in that：The sleeve type flow controller include top connection and
Lower contact, the two are connected, and are equipped in top connection and test pipe pitching opener, the pipe pitching opener of testing includes upper
It is arranged in connector and tests pipe sliding sleeve, it is described to test pipe sliding sleeve and match with pipe ball is tested, it is equipped with hydrophthalmia in top connection, described to test pipe sliding
Set can seal up hydrophthalmia, and be fixed in top connection by shear pin, and spring and valve, the bullet are set with outside top connection
The elastic force of spring makes valve be connected to the upper end of lower contact, and gap, the sky are equipped between the upper end inner wall of lower contact and top connection
Gap is connected to hydrophthalmia.
3. High Pressure Water Injection String according to claim 1 or 2, it is characterised in that：The lower end for supporting the top connection of anchor is to fall
Cone-shaped is matched with the slips shape of slip assemblies.
4. High Pressure Water Injection String according to claim 1 or 2, it is characterised in that：The short track groove and long track groove are flat
Row setting, the two are connected in the lower end of track pipe by switching slot, and the switching slot is equipped with to one in the lower end of track groove and rolls
The tooth socket of oblique guide gear, the gear tooth being arranged oppositely with guide gear, the gear tooth is corresponding with the tooth tip of guide gear, the gear tooth
Tooth tip towards guide gear tooth body.
5. High Pressure Water Injection String according to claim 2, it is characterised in that：The upper end of the lower contact of sleeve type flow controller is set
There is the stepped hole that internal diameter is up big and down small, the valve is connected at the step of stepped hole.
6. High Pressure Water Injection String according to claim 1 or 2, it is characterised in that：The inflatable packer is K344 envelope
Every device.
7. High Pressure Water Injection String according to claim 1 or 2, it is characterised in that：The slip assemblies include slip spider,
It is configured with slips on slip spider, circlip and slips ring are configured with outside slips, the righting block assembly includes supporting positive cover and helps
Positive block is equipped with inner spring and outer spring between supporting positive cover and wiper block, is connected between the supporting positive cover and slip spider by pin
It connects, the sliding pin component includes sliding pin seat, and sliding pin and short track groove are equipped in sliding pin seat or the sliding of long track groove configures, in cunning
It is configured with down outside key seat and helps magnetic, help magnetic to be fixedly connected with supporting positive cover under described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820274130.8U CN208122836U (en) | 2018-02-26 | 2018-02-26 | A kind of High Pressure Water Injection String |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820274130.8U CN208122836U (en) | 2018-02-26 | 2018-02-26 | A kind of High Pressure Water Injection String |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122836U true CN208122836U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820274130.8U Active CN208122836U (en) | 2018-02-26 | 2018-02-26 | A kind of High Pressure Water Injection String |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316899A (en) * | 2018-02-26 | 2018-07-24 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of High Pressure Water Injection String |
| CN109519137A (en) * | 2018-11-30 | 2019-03-26 | 四川圣诺油气工程技术服务有限公司 | A kind of downhole-choke release tool |
| CN110259392A (en) * | 2019-06-17 | 2019-09-20 | 中国石油天然气股份有限公司 | Horizontal well self-releasing hydraulic centralizing device |
| CN113874171A (en) * | 2019-04-15 | 2021-12-31 | 因温特奥股份公司 | Installation tool and method for hammering a rock bolt into a borehole |
-
2018
- 2018-02-26 CN CN201820274130.8U patent/CN208122836U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316899A (en) * | 2018-02-26 | 2018-07-24 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of High Pressure Water Injection String |
| CN109519137A (en) * | 2018-11-30 | 2019-03-26 | 四川圣诺油气工程技术服务有限公司 | A kind of downhole-choke release tool |
| CN113874171A (en) * | 2019-04-15 | 2021-12-31 | 因温特奥股份公司 | Installation tool and method for hammering a rock bolt into a borehole |
| CN110259392A (en) * | 2019-06-17 | 2019-09-20 | 中国石油天然气股份有限公司 | Horizontal well self-releasing hydraulic centralizing device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191205 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE, JIANGHAN OILFIELD BRANCH OF CHINA PETROCHEMICAL CORPORATION Patentee after: China Petrochemical Co., Ltd. Address before: 430035 Hubei city of Wuhan province Gutian two Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Patentee before: PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE, JIANGHAN OILFIELD BRANCH OF CHINA PETROCHEMICAL CORPORATION |