CN202691346U - Ultrahigh pressure test pressure steel tube device - Google Patents
Ultrahigh pressure test pressure steel tube device Download PDFInfo
- Publication number
- CN202691346U CN202691346U CN 201220258971 CN201220258971U CN202691346U CN 202691346 U CN202691346 U CN 202691346U CN 201220258971 CN201220258971 CN 201220258971 CN 201220258971 U CN201220258971 U CN 201220258971U CN 202691346 U CN202691346 U CN 202691346U
- Authority
- CN
- China
- Prior art keywords
- steel tube
- test
- pressure
- ultrahigh
- penstock
- Prior art date
- 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
Images
Abstract
The utility model relates to an ultrahigh pressure test pressure steel tube device. The utility model aims to provide the ultrahigh pressure test pressure steel tube device, which enables an ultrahigh geostress rock mass to be subjected to a hydraulic fracturing geostress test and a high pressure pump-in test smoothly. The utility model provides a technical scheme as follows: the ultrahigh pressure test pressure steel tube device is provided with a pressure steel tube and a steel tube connector, and is characterized in that the two ends of the pressure steel tube are symmetrical and are provided with external threads, an O-shaped seal ring and a check ring are arranged on the inner side of a thread section, and the O-shaped seal ring is mounted at an end part of the steel tube; and the steel tube connector includes a middle section and connector sections on two sides, two planes on the outer surface of the middle section is formed by cutting off two symmetrical arc surfaces side by side on the outer surface and are staggered and crossed for 90 degrees, and internal threads matched with the external threads are formed on the connector sections. The ultrahigh pressure test pressure steel tube device is suitable for the hydraulic fracturing geostress test and the high pressure pump-in test of a rock mass project under the ultrahigh pressure stress state.
Description
Technical field
The utility model relates to a kind of compression test under super high penstock device.Be applicable to the test of hydraulic fracturing crustal stress and high pressure water injection test under the rock mass engineering ultrahigh pressure stress phases such as water power, traffic, oil and mine.
Background technique
The general buried depth 1500～2000m of overlying strata body on the western some hydropower station diversion tunnel of China, maximum buried depth is about 2525m, has that buried depth is large, a hole line length, the large characteristics in footpath, hole, is the super-huge underground water electrical engineering of super buried long tunnel.Maximum crustal stress can reach more than the 70MPa, and in the tunnel excavation process, owing to there is the crustal stress of superelevation, strong rock burst and distortion have appearred in local rock mass, brings very large difficulty and hidden danger for design, construction and the safety of tunnel.Conventional hydraulic fracturing crustal stress test system (mainly comprising packet, penstock, oil hydraulic pump and test pipeline etc.) is difficult to meet the demands.
Conventional test pressure steel pipe, steel tube end part adopts outside thread, and joint is internal thread, and sealing is adopted and is twined raw meal belt at the steel pipe outside thread, and steel tube end part cushioning nylon or steel plate washer.The highest test pressure of penstock of this kind structure is 30～40MPa.Obviously do not reach test request far away, need to develop the novel ultrahigh pressure test pressure steel pipe device of the withstand voltage 100MPa of surpassing.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, a kind of simple in structure, easy to make and compression test under super high penstock device that cost is low is provided, makes and to carry out smoothly the test of hydraulic fracturing crustal stress in the superelevation crustal stress rock mass and high pressure water injection is tested.
The technological scheme that the utility model adopts is: a kind of compression test under super high penstock device, this device has penstock and steel pipe joint, both are all with the identical axial hole of diameter, this through hole connects described device after the assembling, it is characterized in that: described penstock two ends symmetry also is shaped with outside thread, the thread section inboard is provided with O RunddichtringO and back-up ring, and steel tube end part is equipped with the O RunddichtringO; Described steel pipe joint comprises the junction on intermediate section and both sides, and intermediate section cuts two symmetrical cambered surfaces to form the plane side by side at its outer surface, and two pairs of planes are 90 ° of layouts of dislocation intersection, and junction is shaped with the internal thread that is complementary with described outside thread.
Described internal thread accounts for 2/3 of junction inwall.
The beneficial effects of the utility model are: the utility model is simple in structure, convenient processing and manufacture and cost are relatively low, and emphasis solves the connectivity problem of penstock, has designed steel pipe joint high pressure resistant, high sealing performance.The penstock device that provides satisfies the requirement of the maximum pressure 100MPa that test system bears, can carry out smoothly the test of hydraulic fracturing crustal stress and high pressure water injection and test in superelevation crustal stress rock mass, and obtain reliable test achievement.
Description of drawings
Fig. 1 is the structural representation of penstock in the utility model.
Fig. 2 is the structural representation of steel pipe joint in the utility model.
Fig. 3 is A-A or the B-B sectional view of Fig. 2.
Fig. 4 is the structural representation of the utility model in reality test or test.
Embodiment
Present embodiment provides a kind of compression test under super high penstock device that can carry out smoothly the test of hydraulic fracturing crustal stress and high pressure water injection test in superelevation crustal stress rock mass, comprise penstock 1 and steel pipe joint 2, all with the identical axial hole of diameter, this through hole connects whole device after the assembling for both.
As shown in Figure 1, penstock 1 two ends are shaped with outside thread 1-1 in this example, and screw position is provided with back-up ring 3 and O RunddichtringO 4 outside, and the steel pipe two end part are provided with O RunddichtringO 4 equally, and penstock 1 two ends are symmetrical in this example.
Such as Fig. 2, shown in Figure 3, steel pipe joint 2 two ends are junction 2-1, and the intermediate portion is intermediate section 2-2.Wherein its outer surface of intermediate section 2-2 cuts two symmetrical cambered surfaces side by side to form plane (cross section is the waist type), and two pairs of planes are 90 ° of layouts of dislocation intersection, are convenient to spanner clamping steel pipe joint in the install operation process.Described junction 2-1 inwall is shaped with the internal thread 2-1-1 that is complementary with described outside thread 1-1, and internal thread accounts for 2/3 of junction 2-1 inwall.
Determine the external diameter of penstock 1 in the present embodiment according to the actual tests pore size; According to the steel that bear the pressure size and choose respective quality, determine pipe thickness.
Fig. 4 is present embodiment schematic representation in actual use, adopts the ultrahigh pressure packer device 5 of two present embodiments will test the two ends packing of (test) section.Test section water inlet and the penstock 2 of the packer device upper end in nearly aperture are tightly connected, firmly be connected through penstock joint 2 between penstock and the penstock, extend to outside the hole, be used for to test (test) section water-filling, packet water inlet and extreme pressure hose 6 are tightly connected; This test section water inlet, packer device lower end connects another packer device through floral tube 7, has osculum on this floral tube.Packet water inlet on two packer devices is communicated with through extreme pressure hose 6, realizes that two packer devices pressurize or release simultaneously.
Claims (2)
1. compression test under super high penstock device, this device has penstock (1) and steel pipe joint (2), both are all with the identical axial hole of diameter, this through hole connects described device after the assembling, it is characterized in that: described penstock (1) two ends symmetry also is shaped with outside thread (1-1), the thread section inboard is provided with O RunddichtringO (4) and back-up ring (3), and steel tube end part is equipped with O RunddichtringO (4); Described steel pipe joint (2) comprises the junction (2-1) on intermediate section (2-2) and both sides, intermediate section (2-2) cuts two symmetrical cambered surfaces to form the plane side by side at its outer surface, two pairs of planes are 90 ° of layouts of dislocation intersection, and junction (2-1) is shaped with the internal thread (2-1-1) that is complementary with described outside thread (1-1).
2. compression test under super high penstock device according to claim 1, it is characterized in that: described internal thread (2-1-1) accounts for 2/3 of junction (2-1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258971 CN202691346U (en) | 2012-06-04 | 2012-06-04 | Ultrahigh pressure test pressure steel tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258971 CN202691346U (en) | 2012-06-04 | 2012-06-04 | Ultrahigh pressure test pressure steel tube device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691346U true CN202691346U (en) | 2013-01-23 |
Family
ID=47546968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258971 Expired - Lifetime CN202691346U (en) | 2012-06-04 | 2012-06-04 | Ultrahigh pressure test pressure steel tube device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292076A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline with taper structures |
| CN103292077A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | High-pressure delivery pipeline |
-
2012
- 2012-06-04 CN CN 201220258971 patent/CN202691346U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292076A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline with taper structures |
| CN103292077A (en) * | 2013-06-04 | 2013-09-11 | 无锡金顶石油管材配件制造有限公司 | High-pressure delivery pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202628024U (en) | Hyperpressure packer device | |
| CN105804735A (en) | Three-plunger type hydraulic fracturing ground stress measurement system | |
| CN205858333U (en) | A kind of three plug hydraulic fracturing detecting earth stress systems | |
| CN201705264U (en) | Electric pump well tubing head and sealing device | |
| CN102155251A (en) | Waterpower hole packer | |
| CN202946188U (en) | Gas extraction drilling hole multiphase medium plugging device | |
| CN108756872A (en) | A kind of hydraulic fracturing detecting earth stress device of isometrical design | |
| CN103573212A (en) | Composite casing pipe split type rubber plug device well cementing | |
| CN202691346U (en) | Ultrahigh pressure test pressure steel tube device | |
| CN204899850U (en) | Novel compound bridging plug of ball cage | |
| CN102563218A (en) | Nonmetal tube baseboard-penetrating waterproof sleeve | |
| CN201416711Y (en) | Telescopic PE pipe connecting device for gas drainage under coal mines | |
| CN203271666U (en) | Circulation type jacking and pressing blocking device | |
| CN203515413U (en) | Mechanical and hydraulic dual-action ground anchor assembly | |
| CN203347735U (en) | Self-checking and self-sealing releasing packer | |
| CN109973051A (en) | A kind of high pressure water conversion control device and stress measurement system | |
| CN204899838U (en) | Compound bridging plug of ball cage | |
| CN201883969U (en) | Electric pump cable lateral wing crossing and sealing device | |
| CN113187429A (en) | Mining hole sealing bag | |
| CN209327130U (en) | Cable penetration device pressure testing system | |
| CN202927253U (en) | Relay jacking relaying device | |
| CN204152475U (en) | Layer-through drilling list pouch hole sealing device | |
| CN204064696U (en) | A kind of underwater horizontal type X-tree detective pole | |
| CN202970682U (en) | Cable passing mechanism for packer | |
| CN103807222A (en) | Double-pipe hydraulic jet flow pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210713 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: Room 1215, 222 Hedong Road, Hangzhou, Zhejiang 310014 Patentee before: ZHEJIANG HUADONG ENGINEERING SAFETY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |