CN205211283U - Experimental device for two gradient well drillings of efflux under simulation well - Google Patents
Experimental device for two gradient well drillings of efflux under simulation well Download PDFInfo
- Publication number
- CN205211283U CN205211283U CN201520912943.1U CN201520912943U CN205211283U CN 205211283 U CN205211283 U CN 205211283U CN 201520912943 U CN201520912943 U CN 201520912943U CN 205211283 U CN205211283 U CN 205211283U
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- outer tube
- drilling fluid
- efflux
- well
- detritus
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Abstract
The utility model relates to an experimental device for two gradient well drillings of efflux under simulation well mainly comprises drilling fluid import, inside and outside coupling, outer tube, inner tube, detritus charge door, manometer, the import of efflux liquid, booster pump, efflux pipe, highspeed camera, data process system, drilling fluid export. Inside the inner tube is fixed in the outer tube through inside and outside coupling is unsettled. The booster pump passes through efflux pipe and outer union coupling. Detritus charge door and manometer are installed to outer tube dummy level section. The drilling fluid gets into the experimental apparatus by the drilling fluid import, from inner tube simulation straight well section, circulate to the experimental apparatus bottom, carry behind the detritus of following the entering of detritus charge door, the annular space that forms from outer tube and inner tube circulates to the drilling fluid and exports, efflux liquid is by the import of efflux liquid, get into the outer tube behind the booster pump, take the rock drilling fluid to the endless and carry out the efflux in the annular space that outer tube and inner tube formed, improve the upward velocity of straight well section detritus, through the migration condition of highspeed camera with data process system monitoring recording and analysis detritus, the manometer monitoring horizontal segment pressure variation condition of outer tube dummy level section installation. The utility model discloses an advantage: simple structure, convenient operation, the effectively two gradient pressure well drillings of efflux under the simulation well.
Description
Technical field
The utility model relates to conventional levels well drilling technique field, relates more specifically to a kind of experimental provision of simulating down-hole jet stream double-gradient well drilling.
Background technology
Current oil exploration & development work is towards deep-well, and ultra deep well develops, and horizontal well compares conventional straight well, can increase the drainage area of oil and gas reservoir, substantially increase oil and gas production, applies very extensive.Horizontal well can bore in the horizontal direction to meet and overlap inhomogeneous formation more, parting pressure and the reservoir pressure on each cover stratum are not quite similar, along with the extension of horizontal direction continues to increase, the pressure loss of horizontal segment continues to increase, landwaste is caused to be migrated smoothly from straight well section very difficult to ground, if strengthen ground drilling liquid discharge capacity, easy fracturing stratum, causes the leakage of drilling fluid.In straight well section, fluidic device is installed, can maintenance level section pressure, straight well section Cutting movement situation can be improved again.Therefore, if a kind of experimental provision of simulating down-hole jet stream double-gradient well drilling can be invented, after being conducive to research interpolation fluidic device, lateral segment pressure changing and straight well section Cutting movement rule.
Summary of the invention
The utility model object is: provide a kind of experimental provision of simulating down-hole jet stream double-gradient well drilling.
The technical scheme that the utility model adopts is:
A kind of experimental provision of simulating down-hole jet stream double-gradient well drilling of the utility model, primarily of drilling fluid inlet, inner and outer pipes joint, outer tube, interior pipe, landwaste charge door, tensimeter, the import of jet liquid, supercharge pump, jet pipe, high-speed camera, data handling system, drilling fluid outlet composition.Interior pipe is fixed on outer tube by inner and outer pipes joint is unsettled.Supercharge pump is connected with outer tube by jet pipe.Outer tube dummy level section is provided with landwaste charge door and tensimeter.Drilling fluid enters experimental provision by drilling fluid inlet, straight well section is intended from interior pipe die, be circulated to bottom experimental provision, after carrying the landwaste entered from landwaste charge door, the annular circulation formed from outer tube and interior pipe is to drilling fluid outlet, jet liquid is by the import of jet liquid, outer tube is entered after supercharge pump, in the annular space that outer tube and interior pipe are formed, jet is carried out to the rock drilling fluid of taking circulated, improve the up-hole velocity of straight well section landwaste, the transport conditions of landwaste is analyzed by high-speed camera and data handling system monitoring record, the tensimeter level monitoring section pressure changing that outer tube dummy level section is installed.
Advantage of the present utility model: structure is simple, easy to operate, effectively can simulate the two gradient pressure drilling well of down-hole jet stream.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of simulating the experimental provision of down-hole jet stream double-gradient well drilling of the utility model.
In figure: 1. drilling fluid inlet, 2. inner and outer pipes joint, 3. outer tube, pipe 4., 5. landwaste charge door, 6. tensimeter, the 7. import of jet liquid, 8. supercharge pump, 9. jet pipe, 10. high-speed camera, 11. data handling systems, 12. drilling fluid outlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, a kind of experimental provision of simulating down-hole jet stream double-gradient well drilling of the utility model, forms primarily of drilling fluid inlet 1, inner and outer pipes joint 2, outer tube 3, interior pipe 4, landwaste charge door 5, tensimeter 6, jet liquid import 7, supercharge pump 8, jet pipe 9, high-speed camera 10, data handling system 11, drilling fluid outlet 12.Described wellbore fluid import 1 is for importing circulating fluid, inner and outer pipes joint 2 is for hanging interior pipe 4, making it unsettled is fixed in outer tube 3, jet liquid import 7 is for importing jet liquid, supercharge pump 8 carries out supercharging for correlation flow liquid, jet liquid after supercharging enters in the annular space that outer tube 3 and interior pipe 4 formed by jet pipe 9, landwaste charge door 5 adds landwaste in the annular space that formed outer tube 3 and interior pipe 4, and high-speed camera 10 and data handling system 11 are for monitoring record analysis cycle Cutting movement situation.Drilling fluid enters experimental provision by drilling fluid inlet 1, from interior pipe 4 straight well section, be circulated to bottom experimental provision, after carrying the landwaste entered from landwaste charge door 5, the annular circulation formed from outer tube 3 and interior pipe 4 is to drilling fluid outlet, jet liquid is by jet liquid import 7, outer tube 3 is entered after supercharge pump 8, in the annular space that outer tube 3 and interior pipe 4 are formed, jet is carried out to the rock drilling fluid of taking circulated, the transport conditions of landwaste is analyzed with data handling system 11 monitoring record by high-speed camera 10, the tensimeter 6 level monitoring section pressure changing that outer tube dummy level section is installed.
Claims (3)
1. simulate the experimental provision of down-hole jet stream double-gradient well drilling for one kind, primarily of drilling fluid inlet (1), inner and outer pipes joint (2), outer tube (3), interior pipe (4), landwaste charge door (5), tensimeter (6), jet liquid import (7), supercharge pump (8), jet pipe (9), high-speed camera (10), data handling system (11), drilling fluid outlet (12) composition, it is characterized in that: interior pipe (4) is fixed on outer tube (3) inside by inner and outer pipes joint (2) is unsettled; Supercharge pump (8) is connected with outer tube (3) by jet pipe (9), and outer tube dummy level section is provided with landwaste charge door (5) and tensimeter (6); A high-speed camera (10) is respectively installed at outer tube (3) the simulation upper and lower two ends of straight well section, and high-speed camera (10) is connected with data handling system (11).
2. a kind of experimental provision of simulating down-hole jet stream double-gradient well drilling according to claim 1, it is characterized in that: outer tube (3) is diameter 22mm, high grade of transparency plexi-glass tubular, interior pipe (4) is diameter 12mm, high grade of transparency plexi-glass tubular.
3. a kind of experimental provision of simulating down-hole jet stream double-gradient well drilling according to claim 1, it is characterized in that: jet pipe (9) is diameter 2mm, high pressure resistant high grade of transparency plexi-glass tubular, jet pipe (9) axially forms 30 ° of flow angles with outer tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912943.1U CN205211283U (en) | 2015-11-17 | 2015-11-17 | Experimental device for two gradient well drillings of efflux under simulation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912943.1U CN205211283U (en) | 2015-11-17 | 2015-11-17 | Experimental device for two gradient well drillings of efflux under simulation well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211283U true CN205211283U (en) | 2016-05-04 |
Family
ID=55848986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520912943.1U Expired - Fee Related CN205211283U (en) | 2015-11-17 | 2015-11-17 | Experimental device for two gradient well drillings of efflux under simulation well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457642A (en) * | 2018-01-25 | 2018-08-28 | 中国石油大学(北京) | A kind of more gradient pressure test devices of pit shaft |
| CN110593782A (en) * | 2019-10-12 | 2019-12-20 | 西南石油大学 | Riser inflatable dual-gradient drilling indoor experimental device |
| CN113236159A (en) * | 2021-04-30 | 2021-08-10 | 南方海洋科学与工程广东省实验室(湛江) | Double-pipe double-gradient drilling pressure regulation and control simulation experiment device and test method |
-
2015
- 2015-11-17 CN CN201520912943.1U patent/CN205211283U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457642A (en) * | 2018-01-25 | 2018-08-28 | 中国石油大学(北京) | A kind of more gradient pressure test devices of pit shaft |
| CN110593782A (en) * | 2019-10-12 | 2019-12-20 | 西南石油大学 | Riser inflatable dual-gradient drilling indoor experimental device |
| CN110593782B (en) * | 2019-10-12 | 2021-07-23 | 西南石油大学 | Riser inflatable dual-gradient drilling indoor experimental device |
| CN113236159A (en) * | 2021-04-30 | 2021-08-10 | 南方海洋科学与工程广东省实验室(湛江) | Double-pipe double-gradient drilling pressure regulation and control simulation experiment device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |