CN203595697U - Bend pipe connected long rock core model pipe - Google Patents
Bend pipe connected long rock core model pipe Download PDFInfo
- Publication number
- CN203595697U CN203595697U CN201320755164.6U CN201320755164U CN203595697U CN 203595697 U CN203595697 U CN 203595697U CN 201320755164 U CN201320755164 U CN 201320755164U CN 203595697 U CN203595697 U CN 203595697U
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- pipe
- rock core
- core model
- bend pipe
- bend
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- 239000011435 rock Substances 0.000 title claims abstract description 61
- 230000007704 transition Effects 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000011156 evaluation Methods 0.000 abstract description 4
- 239000004088 foaming agent Substances 0.000 abstract description 3
- 239000006260 foam Substances 0.000 description 19
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004391 petroleum recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a bend pipe connected long rock core model pipe, which is formed by continuously connecting N short rock core model pipes with N-1 bend pipes, wherein N is larger than or equal to 3; connecting pieces are arranged on the end faces of short rock core model pipes and bend pipes; pressure measuring holes and temperature measuring holes are formed in the pipe body of each short rock core model pipe; each bend pipe comprises transition sections at the end parts and an arc section in the middle. According to the utility model, additional pressure loss caused by an experimental facility during an experimental process of the performance evaluation of a foaming agent is reduced through improving the connection manner of the rock core model pipe, so that errors are reduced, and the experimental precision is improved.
Description
Technical field
The utility model relates to a kind of process for petroleum recovery laboratory experiment rock core model pipe, particularly relates to a kind of long rock core model pipe that is applicable to high temperature foam agent performance evaluation.
Background technology
Foam is as flow control agent, is widely used in the various fields such as the foam acidizing, foam drilling, foam well-flushing, profile control and water plugging, foam drainage gas recovery in foam flooding in tertiary oil recovery technology and oil field.In order to ensure result of use, before using, be necessary to the evaluation of its performance.
Foaming agent device for evaluating performance is foam to be injected to rock core model pipe under temperature constant state, and the variation of foam monitoring pipe internal pressure and temperature when through rock core model pipe, realizes the evaluation to foaming agent performance.At present, conventional rock core model pipe has two kinds of single tube and long tubes.Single tube model pipe length is shorter, can not well reappear the shattered to pieces regenerative process of foam.Long tube model pipe is formed by connecting by connecting pipe by many single tubes, and connecting pipe is a shorter straight single tube.This model pipe has overcome short tube can not reproduce the process defect of regeneration of vanishing, but between single tube and connecting pipe, is 90 ° of right angles, makes foam in the time flowing to angle position, occur turning to suddenly, has increased local flow resistance, and experimental error strengthens.
Utility model content
The utility model provides a kind of bend pipe to connect long rock core model pipe, its objective is the form by improving rock core model pipe, reduces in experimentation, due to the additonal pressure loss that experimental provision causes, improves experimental precision.
In order to realize foregoing invention object, the technical scheme that the utility model is taked is as follows:
A kind of bend pipe connects long rock core model pipe, and described model pipe is formed by N short rock core model pipe and N-1 bend pipe continued access, wherein, and N >=3; The end face of described short rock core model pipe and bend pipe all has web member, offers pressure tap and thermometer hole on the body of described short rock core model pipe.
Described bend pipe comprises the transition section of end and the segmental arc at middle part.
The internal diameter of described bend pipe equates with the internal diameter of short rock core model pipe.
Described pressure tap and thermometer hole are uniformly distributed on the body of short rock core model pipe.
Described web member is sleeve pipe or ring flange.
The length L 1 of described short rock core model pipe and the projected length L2 sum of bend pipe are less than the length of test box.
The free end of first section short rock core model pipe or the short rock core model pipe of end is injection side, and another free end is output terminal, and injection side is connected with flow in pipes, and output terminal is connected with simulation production line.
Compared to the prior art the utility model, has following beneficial effect:
First, by adopting connecting pipe short rock core model pipe to be connected to the rock core model pipe of growing up, make foam migration distance in rock core model pipe longer, can better simulate the shattered to pieces regenerative process of foam in migration process, guarantee that experiment approaches Practical Project condition as far as possible.
Secondly, by straight single tube connecting pipe is become to bend pipe, the migration path that makes foam from level to be transitioned into gently vertically to, can effectively slow down the impact of effect of end surface on foam migration plugging effect.
Moreover, by adopt bend pipe as connecting pipe, eliminated foam in flow process owing to turning to suddenly the pressure loss causing, foam flow milder, reduced experimental error.
In addition, the utility model is with respect to the form that adopts straight single tube as connecting pipe, and bend pipe only need be installed conventional web member at connecting end surface can realize connection, and straight single tube also needs to arrange corner connector, type of attachment complexity.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is bend pipe cut-open view.
Fig. 3 is the vertical view of Fig. 2.
Reference numeral: 1-injection side, 2-load cell, 3-bend pipe, 301-transition section, 302-segmental arc, 4-temperature probe, the short rock core model pipe of 5-, 6-output terminal, 7-ring flange.
Embodiment
For making goal of the invention of the present utility model, technical scheme and beneficial effect more cheer and bright, below in conjunction with accompanying drawing, embodiment of the present utility model is described, it should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Fig. 1 is the utility model structural representation.As shown in Figure 1, a kind of bend pipe connects long rock core model pipe, and described model pipe is formed by 5 and 2 bend pipe 3 continued accesses of 3 short rock core model pipe; The end face of described short rock core model pipe 5 and bend pipe 3 all has web member, offers pressure tap and thermometer hole on the body of described short rock core model pipe 5.Pressure tap is connected with load cell 2, and thermometer hole is connected with temperature probe 4, and described pressure tap and thermometer hole are uniformly distributed on the body of short rock core model pipe 5.In the present embodiment, pressure tap is opened in the upper surface of the body of short rock core model pipe 5, thermometer hole is opened in the lower surface of the body of short rock core model pipe 5, quantity in every short rock core model pipe 5 on pressure tap and thermometer hole is five, and upper and lower corresponding setting, this way can make test result in same pressure and temperature field, and test data is more reliable.In the present embodiment, take first section short rock core model pipe free end as injection side, the short rock core model pipe of end is output terminal, and injection side is connected with flow in pipes, and output terminal is connected with simulation production line.In actual tests process, according to easy for installation, also can be take the short rock core model pipe of end free end as injection side, first section short rock core model pipe free end is output terminal, any connected mode, all can not affect test findings.
Referring to Fig. 1, adapt in order to ensure model pipe and test box, the length L 1 of short rock core model pipe and the projected length L2 sum of bend pipe are less than the length of test box.The length L 1 of the short rock core model pipe of selecting in the present embodiment is 60cm, and the projected length L2 of bend pipe is 30cm, and said projected length refers to the vertical range of bend pipe link to bend pipe summit; The length of test box is 1m, meets requirement of experiment.
Fig. 2 is bend pipe cut-open view.Referring to Fig. 2, bend pipe 3 is the entirety that the transition section 301 of end and the segmental arc 302 at middle part form.Broken string in Fig. 2, the division position of expression transition section 301 and segmental arc 302.The internal diameter of bend pipe 3 equates with the internal diameter of short rock core model pipe 5.The object of transition section 301 is set, and is to make foam in the time just entering bend pipe, first carries out a bit of Horizontal Movement, then transits to gently segmental arc, farthest reduces the pressure loss.
Referring to Fig. 3, Fig. 3 is the vertical view of Fig. 2, on the connecting end surface of bend pipe 3, has web member, that in the present embodiment, selects is connected to ring flange 7, when connection, the ring flange 7 of the ring flange 7 on bend pipe 3 and short rock core model pipe 5 ends aligns, and then fixes by fixtures such as bolts.Described web member ring flange 7, can also select sleeve pipe except selecting.No matter select which kind of web member form, in order to ensure the accuracy of the result of testing, when connection, fixture must tighten, and if desired, also can take other anti-seep measures.
Adopting model pipe described in the utility model to carry out foam evaluates the process of physical simulation experiment and is: short rock core model pipe and bend pipe are linked in sequence and form stacked long rock core model pipe, then the long rock core model pipe connecting is put into constant temperature oven, pressure tap is connected with load cell 2, and thermometer hole is connected with temperature probe 4; Choose injection side and output terminal, injection side is connected with flow in pipes, and output terminal is connected with simulation production line, connects complete can experiment.
Although the embodiment that the utility model discloses as above, the embodiment that its content just adopts for the ease of understanding the technical solution of the utility model, is not intended to limit the utility model.Technician under any the utility model in technical field; do not departing under the prerequisite of the core technology scheme that the utility model discloses; can in the form of implementing and details, make any modification and variation; but the protection domain that the utility model limits, the scope that still must limit with appending claims is as the criterion.
Claims (7)
1. bend pipe connects a long rock core model pipe, it is characterized in that: described model pipe is formed by N short rock core model pipe (5) and N-1 bend pipe (3) continued access, wherein, and N >=3; The end face of described short rock core model pipe (5) and bend pipe (3) all has web member, on the body of described short rock core model pipe (5), offers pressure tap and thermometer hole.
2. bend pipe as claimed in claim 1 connects long rock core model pipe, it is characterized in that: described bend pipe (3) comprises the transition section (301) of end and the segmental arc (302) at middle part.
3. bend pipe as claimed in claim 1 or 2 connects long rock core model pipe, it is characterized in that: the internal diameter of described bend pipe (3) equates with the internal diameter of short rock core model pipe (5).
4. bend pipe as claimed in claim 1 or 2 connects long rock core model pipe, it is characterized in that: described pressure tap and thermometer hole are uniformly distributed on the body of short rock core model pipe (5).
5. bend pipe as claimed in claim 1 or 2 connects long rock core model pipe, it is characterized in that: described web member is sleeve pipe or ring flange (7).
6. bend pipe as claimed in claim 1 or 2 connects long rock core model pipe, it is characterized in that: the length L 1 of described short rock core model pipe and the projected length L2 sum of bend pipe are less than the length of test box.
7. bend pipe as claimed in claim 1 or 2 connects long rock core model pipe, it is characterized in that: the free end of first section short rock core model pipe or the short rock core model pipe of end is injection side, another free end is output terminal, and injection side is connected with flow in pipes, and output terminal is connected with simulation production line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755164.6U CN203595697U (en) | 2013-11-25 | 2013-11-25 | Bend pipe connected long rock core model pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755164.6U CN203595697U (en) | 2013-11-25 | 2013-11-25 | Bend pipe connected long rock core model pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595697U true CN203595697U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755164.6U Expired - Fee Related CN203595697U (en) | 2013-11-25 | 2013-11-25 | Bend pipe connected long rock core model pipe |
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| Country | Link |
|---|---|
| CN (1) | CN203595697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064434A (en) * | 2017-05-25 | 2017-08-18 | 浙江海洋大学 | A kind of device for determining air foam effective migration distance between well |
-
2013
- 2013-11-25 CN CN201320755164.6U patent/CN203595697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064434A (en) * | 2017-05-25 | 2017-08-18 | 浙江海洋大学 | A kind of device for determining air foam effective migration distance between well |
| CN107064434B (en) * | 2017-05-25 | 2020-01-03 | 浙江海洋大学 | Device for measuring effective migration distance of air foam between wells |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CHINA OILFIELD SERVICES Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CHINA OILFIELD SERVICES Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |