CN202628024U - Hyperpressure packer device - Google Patents
Hyperpressure packer device Download PDFInfo
- Publication number
- CN202628024U CN202628024U CN 201220258991 CN201220258991U CN202628024U CN 202628024 U CN202628024 U CN 202628024U CN 201220258991 CN201220258991 CN 201220258991 CN 201220258991 U CN201220258991 U CN 201220258991U CN 202628024 U CN202628024 U CN 202628024U
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- hyperpressure
- packer
- packer device
- test
- rubber tube
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Abstract
The utility model relates to a hyperpressure packer device. The utility model aims at providing a hyperpressure packer device which is simple in structure, convenient to produce and capable of successfully carrying out a hydrofracturing ground stress test and a high-pressure water test in a hyperpressure rock mass. The technical scheme is as follows: the hyperpressure packer device is characterized by providing a hollow central rod, wherein a rubber barrel is coaxially sleeved outside the central rod, two ends of the rubber barrel are respectively connected with the central rod through rubber barrel connectors, two ends of the rubber barrel are respectively provided with an iron ring and respectively in sealing connection with an end iron head, and each end iron head is internally provided with a packer water inlet hole which is communicated with the rubber barrel. The hyperpressure packer device is suitable for the hydrofracturing ground stress test and the hyperpressure water test under a hyperpressure stress state of rock mass engineering such as hydropower, traffic transportation, petroleum, mine and the like.
Description
Technical field
The utility model relates to a kind of super-pressure packer device.Be applicable to test of hydraulic fracturing geostatic stress and high pressure water injection test under the rock mass engineering super-pressure stress states such as water power, traffic, oil and mine.
Background technology
The general buried depth 1500～2000m of overlying strata body on China's western power station diversion tunnel, maximum buried depth is about 2525m, has that buried depth is big, a hole line length, the big characteristics in footpath, hole, is the super-huge underground water electrical engineering of ultra buried long tunnel.Maximum geostatic stress can reach more than the 70MPa, and in the tunnel excavation process, owing to there is the geostatic stress of superelevation, strong rock burst and distortion have appearred in local rock mass, brings very big difficulty and hidden danger for design, construction and the safety of tunnel.Conventional hydraulic fracturing geostatic stress test macro (mainly comprising packer, penstock, hydraulic pump and test pipeline etc.) is difficult to meet the demands.
Packer mainly is divided into rubber tube, center-pole and end iron head three parts; Conventional packer adopts the single channel hydraulic buckling type rubber tube of external diameter 72mm, long 100cm; The sealing of sealing, iron head and the center-pole connecting portion of
rubber tube and iron head connecting portion; All adopt the sealing raw material band, need the length of control centre's bar exactly during assembling.The highest test pressure of conventional packer is 30～40MPa, does not obviously reach test request far away, need develop the novel ultrahigh pressure packer of the withstand voltage 100MPa of surpassing.
Summary of the invention
The technical problem that the utility model will solve is: the problem to above-mentioned existence, a kind of super-pressure packer device simple in structure, easy to make is provided, and can in the super-pressure rock mass, carry out test of hydraulic fracturing geostatic stress and high pressure water injection test smoothly.
The technical scheme that the utility model adopted is: a kind of super-pressure packer device; It is characterized in that: this device has the center-pole of hollow; The outer coaxial rubber tube that is with of center-pole, the rubber tube two ends are connected with center-pole through the rubber tube connector, and said rubber tube two ends are with iron hoop; And the end iron head that is tightly connected respectively is provided with the packer inlet opening that is communicated with rubber tube in the iron head of end.
Be provided with back-up ring and O RunddichtringO between said end iron head and the center-pole.
Be provided with the O RunddichtringO between said end iron head and the rubber tube connector.
The beneficial effect of the utility model is: according to the maximum pressure requirement that test macro bore, the super-pressure packer is designed.General structure is with reference to conventional packer, and emphasis solves the sealing problem of withstand voltage and each link position of packer material.Use the described super-pressure packer device of the utility model; Can carry out test of hydraulic fracturing geostatic stress and high pressure water injection test under the super-pressure stress condition effectively; Guarantee that test (test) can be successful, and the utility model is simple in structure, processing and fabricating convenient, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the utility model in reality test or test.
The specific embodiment
As shown in Figure 1; Present embodiment is a kind of novel super-pressure packer device; Have center-pole 1, rubber tube 5, iron hoop 3, end iron head 2 and rubber tube connector 4 etc., center-pole 1 inner hollow wherein is as test section inlet opening 9; The center-pole 1 outer coaxial rubber tube 5 that is with, rubber tube 5 two ends are connected with center-pole 1 through rubber tube connector 4.Rubber tube 5 two ends all are with iron hoop 3, and rubber tube 5 two ends also are sealedly connected with end iron head 2, and end iron head 2 is provided with the packer inlet opening 6 that is communicated with rubber tube 5.Be provided with back-up ring 7 and O RunddichtringO 8 between said end iron head 2 and the center-pole 1, be provided with O RunddichtringO 8 between end iron head 2 and the rubber tube connector 4.
As shown in Figure 2, in actual use, adopt the super-pressure packer device of two present embodiments will test the two ends packing of (test) section.The test section inlet opening 9 of the packer device upper end in nearly aperture is tightly connected with penstock 10; Firmly be connected through penstock joint 11 between penstock and the penstock; Be used for to test (test) section water-filling, packer inlet opening 6 is tightly connected with extreme pressure hose 12; This test section inlet opening 9, packer device lower end connects another packer device through floral tube 13, has weep hole on this floral tube.Packer inlet opening 6 on two packer devices is communicated with through extreme pressure hose 12, realizes that two packer devices pressurize or release simultaneously.
Concrete operating principle is following:
will connect the packer device accomplished down after be scheduled to the hole depth position; Uninterruptedly add water (oil) through extreme pressure hose 12 to packer inlet opening 6 with high-pressure hydraulic pump (or oil pump); Make that the rubber tube 5 of two packer devices constantly expands and closely contacts with the hole wall rock mass up and down; When the packer device internal pressure reaches predetermined packing pressure, close water inlet (oil) valve of extreme pressure hose 12 then; Test of beginning geostatic stress or high pressure water injection test.The pressure of packer will improve along with the increase of test section pressure during test.
Claims (3)
1. super-pressure packer device; It is characterized in that: this device has the center-pole (1) of hollow; The outer coaxial rubber tube (5) that is with of center-pole (1); Rubber tube (5) two ends are connected with center-pole (1) through rubber tube connector (4), and said rubber tube (5) two ends are with iron hoop (3) and the end iron head (2) that is tightly connected respectively, are provided with the packer inlet opening (6) that is communicated with rubber tube (5) in the end iron head (2).
2. super-pressure packer device according to claim 1 is characterized in that: be provided with back-up ring (7) and O RunddichtringO (8) between said end iron head (2) and the center-pole (1).
3. super-pressure packer device according to claim 1 and 2 is characterized in that: be provided with O RunddichtringO (8) between said end iron head (2) and the rubber tube connector (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258991 CN202628024U (en) | 2012-06-04 | 2012-06-04 | Hyperpressure packer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258991 CN202628024U (en) | 2012-06-04 | 2012-06-04 | Hyperpressure packer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628024U true CN202628024U (en) | 2012-12-26 |
Family
ID=47381232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258991 Expired - Lifetime CN202628024U (en) | 2012-06-04 | 2012-06-04 | Hyperpressure packer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628024U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776572A (en) * | 2014-01-22 | 2014-05-07 | 安徽理工大学 | Geostress measuring device |
| CN105019854A (en) * | 2015-07-03 | 2015-11-04 | 北京建筑大学 | Super-high pressure end portion structure of sealing kettle |
| CN105804735A (en) * | 2016-05-13 | 2016-07-27 | 浙江华东工程安全技术有限公司 | Three-plunger type hydraulic fracturing ground stress measurement system |
| CN109029796A (en) * | 2018-09-13 | 2018-12-18 | 北京科技大学 | A kind of hydrofracturing detecting earth stress unit protection device |
| CN109030225A (en) * | 2018-06-29 | 2018-12-18 | 中国电建集团中南勘测设计研究院有限公司 | A kind of equipment for observing Rockmass fractures in the test of hydraulic fracturing crustal stress in real time |
| CN109469479A (en) * | 2018-11-30 | 2019-03-15 | 天地科技股份有限公司 | Water pressure supporing system and method |
| CN111175125A (en) * | 2020-01-17 | 2020-05-19 | 安徽理工大学 | Coal rock tensile strength cracking experiment probe and assembly method |
| CN111677497A (en) * | 2020-06-28 | 2020-09-18 | 中国地质科学院地质力学研究所 | Hydrofracturing stress detection device and detecting system |
-
2012
- 2012-06-04 CN CN 201220258991 patent/CN202628024U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776572A (en) * | 2014-01-22 | 2014-05-07 | 安徽理工大学 | Geostress measuring device |
| CN103776572B (en) * | 2014-01-22 | 2016-08-17 | 安徽理工大学 | Detecting earth stress device |
| CN105019854A (en) * | 2015-07-03 | 2015-11-04 | 北京建筑大学 | Super-high pressure end portion structure of sealing kettle |
| CN105804735A (en) * | 2016-05-13 | 2016-07-27 | 浙江华东工程安全技术有限公司 | Three-plunger type hydraulic fracturing ground stress measurement system |
| CN109030225A (en) * | 2018-06-29 | 2018-12-18 | 中国电建集团中南勘测设计研究院有限公司 | A kind of equipment for observing Rockmass fractures in the test of hydraulic fracturing crustal stress in real time |
| CN109029796A (en) * | 2018-09-13 | 2018-12-18 | 北京科技大学 | A kind of hydrofracturing detecting earth stress unit protection device |
| CN109029796B (en) * | 2018-09-13 | 2023-11-03 | 北京科技大学 | Protector of hydraulic fracturing ground stress testing device |
| CN109469479A (en) * | 2018-11-30 | 2019-03-15 | 天地科技股份有限公司 | Water pressure supporing system and method |
| CN111175125A (en) * | 2020-01-17 | 2020-05-19 | 安徽理工大学 | Coal rock tensile strength cracking experiment probe and assembly method |
| CN111677497A (en) * | 2020-06-28 | 2020-09-18 | 中国地质科学院地质力学研究所 | Hydrofracturing stress detection device and detecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210719 Address after: Room 609 and 610, North building, Huadong Hospital, 22 Chaowang Road, Hangzhou, Zhejiang 310014 Patentee after: Zhejiang Huadong mapping and Engineering Safety Technology Co.,Ltd. Address before: 310014 room 1215, No. 222, Hedong Road, Hangzhou, Zhejiang Patentee before: ZHEJIANG HUADONG ENGINEERING SAFETY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |