CN206816213U - The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut - Google Patents
The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut Download PDFInfo
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- CN206816213U CN206816213U CN201720522969.4U CN201720522969U CN206816213U CN 206816213 U CN206816213 U CN 206816213U CN 201720522969 U CN201720522969 U CN 201720522969U CN 206816213 U CN206816213 U CN 206816213U
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Abstract
The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut in under-balanced drilling technology field is the utility model is related to, it is mainly made up of electromagnetic air pump, gas flowmeter, ball valve A, gas access, drill bit, computer monitoring system, outer tube, inner tube, pressure sensor, casing joint, mixture inlet, landwaste funnel, ball valve B, fluid flowmeter, water pump, hopper, three phase separator, mixture outlet, fluidized bed dryer, landwaste collecting vessel and high-speed camera.Hopper is connected with water pump, fluid flowmeter, ball valve B and mixture inlet successively, and electromagnetic air pump is connected with gas flowmeter, ball valve A and gas access successively, and pressure sensor is connected with computer monitoring system.The utility model is convenient to use, can simulate the situation of change of annular space drilling liquid pressure after under balance pressure drilling gas cut well.
Description
Technical field
It the utility model is related to a kind of annular space drilling fluid after simulating under balance pressure drilling gas cut in under-balanced drilling technology field
The experimental provision of pressure change.
Background technology
During under balance pressure drilling, after gas cut occurs, gas is constantly invaded in drilling fluid, makes the performance of drilling fluid
Change, cause wellbore pressure control difficult.Compressibility and expansile feature due to gas, gas intrusion drilling fluid
Afterwards, gas by top head of liquid because being influenceed, volume very little, but with being returned in the circulation of drilling fluid, the rate of climb of gas
Constantly increase, the head of liquid suffered by gas is also gradually reduced, the continuous expansion of gas volume, the pressure of annular space drilling fluid with
The change for the volume of gas also constantly changes, until returning out well head.The process of drilling liquid pressure change will influence pit shaft ring
Empty pressure change is complicated, by the security of strong influence drilling well.At present both at home and abroad to pit shaft after generation gas cut in drilling process
Pressure distribution has many researchs；But to occur gas cut after annular space drilling liquid pressure change research it is less, in actual well drilled mistake
Cheng Zhong, drilling fluid influence greatly on the quality and progress of drilling well, once if phase can not be taken in time by this complicated operating mode occur
The measure answered, this will influence the construction of later stage kill-job completion, it is also possible to accident occurs when serious.Therefore, in drilling process
The situation of gas cut, which occurs, to be necessary to be studied in laboratory；If annular space bores after inventing a kind of simulation under balance pressure drilling gas cut
The experimental provision of well liquid pressure change is analyzed this complicated operating mode, and this will be taken appropriate measures to scene with weight
The directive significance wanted.
The content of the invention
The purpose of the utility model is：Provide it is a kind of simulate under balance pressure drilling gas cut after annular space drilling liquid pressure change reality
Experiment device.
Technical scheme is used by the utility model：
The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut of the utility model, by electromagnetism
Formula air pump, gas flowmeter, ball valve A, gas access, drill bit, computer monitoring system, outer tube, inner tube, pressure sensor,
Casing joint, mixture inlet, landwaste funnel, ball valve B, fluid flowmeter, water pump, hopper, three phase separator, mixture go out
Mouth, fluidized bed dryer, landwaste collecting vessel and high-speed camera composition.Hopper successively with water pump, fluid flowmeter, ball valve B
It is connected with mixture inlet, electromagnetic air pump is connected with gas flowmeter, ball valve A and gas access successively, pressure sensor
It is connected with computer monitoring system；Outer tube and inner tube are all made using transparent acrylic glass, and its interior tube thickness is outer tube
1.5 times of thickness, outer tube and inner tube bearing capacity are respectively 2MPa and 3MPa；Leaned in casing joint lower left quarter and drill bit lower left quarter
A pressure sensor is respectively equipped with nearly outer tube, for monitoring the situation of change of pressure in experimentation.Casing joint uses
Detachable design, the cutting grain average grain diameter in landwaste funnel is 1mm；The cutting grain mould during whole experimental simulation
Caused landwaste, hopper simulate the drilling fluid under actual condition in drilling process under plan actual condition, and electromagnetic air pump carries
The gas simulation actual condition of confession issues the gas after angry invade, and the sleeve pipe, inner tube simulation under outer tube simulation actual condition are actual
Drilling rod under operating mode, drill bit simulate the drill bit under actual condition.
The advantages of the utility model：It is convenient to use, annular space drilling fluid after under balance pressure drilling gas cut can be simulated well
Pressure changing；Whole experiment is recycled again to water and sand particle, is economized on resources.
Brief description of the drawings
Fig. 1 is the experimental provision of annular space drilling liquid pressure change after a kind of simulation under balance pressure drilling gas cut of the utility model
Structural representation.
In figure：1. electromagnetic air pump, 2. gas flowmeters, 3. ball valve A, 4. gas accesses, 5. drill bits, 6. computers prison
Examining system, 7. outer tubes, 8. inner tubes, 9. pressure sensors, 10. casing joints, 11. mixture inlets, 12. landwaste funnels, 13. balls
Valve B, 14. fluid flowmeters, 15. water pumps, 16. hoppers, 17. three phase separators, 18. mixture outlets, 19. fluidized bed dryings
Device, 20. landwaste collecting vessels, 21. high-speed cameras.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, the experiment that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut of the utility model
Device, mainly by electromagnetic air pump 1, gas flowmeter 2, ball valve A3, gas access 4, drill bit 5, computer monitoring system 6,
Outer tube 7, inner tube 8, pressure sensor 9, casing joint 10, mixture inlet 11, landwaste funnel 12, ball valve B13, fluid flowmeter
14th, water pump 15, hopper 16, three phase separator 17, mixture outlet 18, the landwaste collecting vessel 20 of fluidized bed dryer 19 and high speed
Video camera 21 forms.Hopper 16 is connected with water pump 15, fluid flowmeter 14, ball valve B13 and mixture inlet 11 successively, electromagnetism
Formula air pump 1 is connected with gas flowmeter 2, ball valve A3 and gas access 4 successively, pressure sensor 9 and computer monitoring system 6
It is connected.
As shown in figure 1, physical simulation process is：Ball valve A3 is first shut off, ball valve B13 and water pump 15 is opened, makes hopper
Water in 16 passes sequentially through water pump 15 and pressurizes, enters inner tube 8 from mixture inlet 11 after the metering of fluid flowmeter 14, now opens
Landwaste funnel 12 makes cutting grain enter inner tube 8 together with water, finally flows out from drill bit 5 and is up flowed in annular space, finally
Three phase separator 17 is flowed out into from mixture outlet 18 to be separated.After a period of time, when aobvious in computer monitoring system 6
During the pressure level-off shown, open electromagnetic air pump 1, make gas from electromagnetic air pump 1 come out after by gas flow
Enter after the metering of meter 2 from gas access 4 in annular space, simulation produces gas cut process；Can clearly it be seen out of computer monitoring system 6
Observe and produce pressure changing after gas cut in whole annular space, water, cutting grain and gas flow from mixture outlet 18 together
Go out and enter three phase separator 17 to be separated, the gas isolated flows directly into air, and the water isolated flows into hopper 16
Carry out recovery again to use, the cutting grain isolated enters landwaste collecting vessel 20 after being dried into fluidized bed dryer 19
Carry out recovery again to use, i.e., whole simulation process terminates.Whole experiment process is recorded by high-speed camera 21, in fact
Testing result will be significant to live Practical Project with experimental phenomena.
Claims (3)
1. it is a kind of simulate under balance pressure drilling gas cut after annular space drilling liquid pressure change experimental provision, by electromagnetic air pump (1),
Gas flowmeter (2), ball valve A (3), gas access (4), drill bit (5), computer monitoring system (6), outer tube (7), inner tube (8),
Pressure sensor (9), casing joint (10), mixture inlet (11), landwaste funnel (12), ball valve B (13), fluid flowmeter
(14), water pump (15), hopper (16), three phase separator (17), mixture outlet (18), fluidized bed dryer (19), landwaste
Collecting vessel (20) and high-speed camera (21) composition, it is characterised in that：Hopper (16) successively with water pump (15), fluid flowmeter
(14), ball valve B (13) is connected with mixture inlet (11), electromagnetic air pump (1) successively with gas flowmeter (2), ball valve A
(3) it is connected with gas access (4), pressure sensor (9) is connected with computer monitoring system (6).
2. the experiment dress that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut according to claim 1
Put, it is characterised in that：Outer tube (7) and inner tube (8) are all made using transparent acrylic glass, and its inner tube (8) thickness is outer
Manage (7) thickness 1.5 times, outer tube (7) and inner tube (8) bearing capacity are respectively 2MPa and 3MPa；In casing joint (10) lower-left
Portion and drill bit (5) lower left quarter are respectively equipped with a pressure sensor (9) close to outer tube (7) place, are pressed for monitoring in experimentation
The situation of change of power.
3. the experiment dress that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut according to claim 1
Put, it is characterised in that：Casing joint (10) uses detachable design, and the cutting grain average grain diameter in landwaste funnel (12) is
1mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720522969.4U CN206816213U (en) | 2017-05-12 | 2017-05-12 | The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720522969.4U CN206816213U (en) | 2017-05-12 | 2017-05-12 | The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816213U true CN206816213U (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720522969.4U Expired - Fee Related CN206816213U (en) | 2017-05-12 | 2017-05-12 | The experimental provision that annular space drilling liquid pressure changes after a kind of simulation under balance pressure drilling gas cut |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798638A (en) * | 2018-08-15 | 2018-11-13 | 中国石油大学(北京) | A kind of experimental provision for simulating Shallow fluid intrusion pit shaft |
| CN109540496A (en) * | 2019-01-10 | 2019-03-29 | 西南石油大学 | It is a kind of for studying the experimental provision and method of salt cave library conveyance conduit deformation intensity |
| CN111175539A (en) * | 2020-02-18 | 2020-05-19 | 中国海洋石油集团有限公司 | Device and method for testing rising speed of bubbles in drilling fluid under high-temperature and high-pressure rotating condition |
| CN111964887A (en) * | 2020-08-17 | 2020-11-20 | 西南石油大学 | Casing annulus pressure relief tool simulation experiment device and test method |
| CN113338907A (en) * | 2021-07-08 | 2021-09-03 | 西南石油大学 | Gas drilling stratum effluent gas water carrying simulation experiment device |
-
2017
- 2017-05-12 CN CN201720522969.4U patent/CN206816213U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798638A (en) * | 2018-08-15 | 2018-11-13 | 中国石油大学(北京) | A kind of experimental provision for simulating Shallow fluid intrusion pit shaft |
| CN109540496A (en) * | 2019-01-10 | 2019-03-29 | 西南石油大学 | It is a kind of for studying the experimental provision and method of salt cave library conveyance conduit deformation intensity |
| CN109540496B (en) * | 2019-01-10 | 2023-10-13 | 西南石油大学 | Experimental device and method for researching deformation strength of salt cavern conveying pipeline |
| CN111175539A (en) * | 2020-02-18 | 2020-05-19 | 中国海洋石油集团有限公司 | Device and method for testing rising speed of bubbles in drilling fluid under high-temperature and high-pressure rotating condition |
| CN111964887A (en) * | 2020-08-17 | 2020-11-20 | 西南石油大学 | Casing annulus pressure relief tool simulation experiment device and test method |
| CN111964887B (en) * | 2020-08-17 | 2022-04-12 | 西南石油大学 | Casing annulus pressure relief tool simulation experiment device and test method |
| CN113338907A (en) * | 2021-07-08 | 2021-09-03 | 西南石油大学 | Gas drilling stratum effluent gas water carrying simulation experiment device |
| CN113338907B (en) * | 2021-07-08 | 2022-04-12 | 西南石油大学 | Gas drilling stratum effluent gas water carrying simulation experiment device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20180512 |