CN106761720B - A kind of air horizontal well drilling annular space takes rock simulator - Google Patents
A kind of air horizontal well drilling annular space takes rock simulator Download PDFInfo
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- CN106761720B CN106761720B CN201611037830.7A CN201611037830A CN106761720B CN 106761720 B CN106761720 B CN 106761720B CN 201611037830 A CN201611037830 A CN 201611037830A CN 106761720 B CN106761720 B CN 106761720B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
The present invention relates to for simulating one of petroleum air drilling horizontal well Annular Cuttings transported simulation device, which includes gas supply part, for landwaste part, down-hole annular analog portion, water supply part, separation and recovery part and part of data acquisition.Air Cutting movement experiment can be carried out under low voltage situations using apparatus of the present invention, air Cutting movement can visually be observed, and the Cutting movement situation under a variety of different operating condition factors of the analog including formation water output, by the separation and recovery section in device, the landwaste of simulated experiment can be recycled.
Description
Technical field
The present invention relates to the experimental provisions for simulating petroleum air drilling, are a kind of air that can carry out visual observation
Horizontal well drilling annular space takes rock simulator.
Background technique
In Process of Oil Well Drilling, to improve rate of penetration, leakage is reduced, extends bit life, reduced viscous card, improve ground
Layer evaluation effect, reduces formation damage, and oil gas output earlier is often used air drilling technology.Air drilling is that can control
Under conditions of system, drilling fluid is replaced using gas base flow body, to form the drilling technology of Negative Pressure Difference in shaft bottom.Since air is close
It spends that low, viscosity is small, uses air as after taking rock medium, Cutting movement effect is poor, when in addition meeting formation water output, clay rock
The bonding of bits also brings burden to Cutting movement.Air drilling has many irreplaceable advantages, and is taken seriously, but rock
Bits migration problem becomes one of the bottleneck for hindering its development.
In drilling well, it is often used horizontal well drilling technology.Horizontal well is that hole angle reaches or approaches 90 °, and well bore is along level
The well of direction drilling certain length.Make drill string lie low in the lower borehole wall in horizontal well due to gravity, form eccentric annulus,
Easily lead to landwaste deposition in the first-class changeover portion of drilling rod connecting, accumulation excessively then forms cutting bed.Annular Cuttings accumulation is easy to
Drill string high torque and high-drag, even bit freezing are caused, to solve the above-mentioned problems, the Cutting movement mechanism of horizontal well becomes
The project urgently studied.
Therefore, it is badly in need of a kind of experimental provision that can simulate simultaneously energy visual observation air horizontal well drilling Cutting movement rule.
The device includes that gas supply partially, for landwaste part, down-hole annular analog portion, water supply part, separation and recovery part with data is adopted
Collect part.Using the experimental provision can the air under different operating condition factors of the quantitative study including formation water output take rock and advise
Rule, rock process can be taken to air and is visually observed, and is the low cost experiment carried out under the conditions of low-voltage safety, this
There is provided the solution for taking rock problem for air horizontal well drilling annular space to a reliable approach.
Summary of the invention
The purpose of the present invention is: in order to overcome the deficiencies of the prior art, provide a kind of analog various working factor and can
The air horizontal well drilling for carrying out visual observation takes rock simulator.
In order to achieve the above objectives, technical solution used by the present invention solves the problems, such as this is: a kind of air horizontal well drilling ring
Sky takes rock simulator, including supplies part, for landwaste part, down-hole annular analog portion, water supply part, separation and recovery part
And part of data acquisition.It is characterized by: gas supply part by control cabinet, blower, steel pipe, vortex-shedding meter and butterfly valve successively
Connection composition, described to be from top to bottom made of for landwaste part storage sand launder, rotary valve, frequency converter, accelerating chamber and charging support, institute
Down-hole annular analog portion is stated by glass tube, pvc pipe, PVC tool joint, rolling bearing, rotational handle, adjusting bolt, rubber
Curtain, support of pipelines and adjustable support etc. are constituted, and wherein pvc pipe is located in glass tube, and the water supply part is by water pipe, float-type
Meter, ball valve are sequentially connected to glass tube upper opening composition, and the separation and recovery part is by recycling bin, sieve plate, sieve, drainpipe
It is formed with A-frame, the part of data acquisition is made of high speed camera, tripod, computer and scale.
The vortex-shedding meter, butterfly valve are connect by steel pipe with fan outlet, to adjust air mass flow；The rotary valve dress
Above accelerating chamber, accelerating chamber both ends are connected with butterfly valve, glass tube respectively, and rotary valve passes through Frequency Converter Control revolving speed；It is described
Glass tube uses transparent, wear-resistant material, can directly observe air and take rock process, reaches visualization effect, leads between glass tube
Cross flange, be bolted, pvc pipe connect with PVC tool joint after loaded in glass tube, pvc pipe is towards the end cap of blower one
It blocks；The adjustable support is divided into top half and lower half portion, and wherein top half and rolling bearing are interference fitted, lower half
Divide and be fixed on ground with swell fixture, upper and lower two parts are bolted by adjusting, and are passed through and are adjusted the changeable pvc pipe height of bolt height
Degree achievees the purpose that change its eccentricity, in addition, close using the rubber curtain bent towards on the inside of recycling bin between pvc pipe and recycling bin
Envelope；The water supply device is sequentially connected by water pipe, suspended body flowmeter, ball valve, and wherein suspended body flowmeter is bolted in bracket
On, water pipe connects ball valve, suspended body flowmeter, controls water supply by suspended body flowmeter and ball valve；Have on the recycling bin more
Phase inflow entrance, gaseous phase outlet, liquid-phase outlet, solid-phase outlet, pvc pipe export totally five entrances, wherein multiphase inflow entrance and glass
Glass pipe tail end is connected, and is fixed with sieve with iron hoop at gaseous phase outlet, to separate gas phase and solid phase, draining is welded at liquid-phase outlet
It manages, closing door is housed at solid-phase outlet, recycling solid phase can be opened.Recycling bin is connect by bolt with A-frame, A-frame
Make recycling bin and ground into 5 ° of angles, liquid phase facilitated to flow out by drainpipe, sieve plate is fixed in recycling bin, by multiphase inflow entrance with
Liquid-phase outlet separates, to separate solid phase and liquid phase, that is, realizes the recycling of three phase separation and solid phase；The scale is pasted onto glass
Glass pipe lower part, for measuring displacement of the landwaste within the unit time.
Using the method for above-mentioned apparatus simulated air horizontal well drilling Cutting movement, mainly include the following steps that.
1) by adjusting gas supply part discharge capacity, record vortex-shedding meter reading, analog difference annular space returns air under speed
Rock situation is taken, records plus landwaste amount, pvc pipe revolving speed, the pvc pipe degree of eccentricity, landwaste motion profile, landwaste settles into bed and recurrence
Emotionally condition analyzes influence of the different air displacements to rock effect is taken.
2) landwaste additional amount, the coal powder quantity of bore generated under different drilling speeds in analog drilling well, note are changed by control frequency converter
Record lower vortex-shedding meter reading, pvc pipe revolving speed, the pvc pipe degree of eccentricity, landwaste motion profile, landwaste settle into bed and recurrence emotionally
Condition analyzes influence of the different coal powder quantity of bore to rock effect is taken.
3) change the degree of eccentricity of pvc pipe by control adjustable support height, the different degree of eccentricitys are bored in analog horizontal well
The working condition of column records vortex-shedding meter reading plus landwaste amount, pvc pipe revolving speed, the pvc pipe degree of eccentricity, landwaste movement rail
Mark, landwaste settle into bed and restart situation, analyze influence of the different drill string degree of eccentricitys to rock effect is taken.
4) change the revolving speed of pvc pipe by rotational handle, the work rotation of different rotating speeds drill string in analog horizontal well,
It records vortex-shedding meter reading plus landwaste amount, the pvc pipe degree of eccentricity, landwaste motion profile, landwaste settles into bed and recurrence emotionally
Condition analyzes influence of the different pvc pipe revolving speeds to rock effect is taken.
5) water supply part flow is changed by regulation ball valve, working condition when formation water output, record are met in analog underground
Lower vortex-shedding meter reading, suspended body flowmeter reading plus landwaste amount, pvc pipe revolving speed, the pvc pipe degree of eccentricity, landwaste motion profile,
Landwaste settles into bed and restarts situation, analyzes different formation water productions and meets water to the influence for taking rock effect and mud shale
The consequence that drilling process may be generated after bonding.
Compared with prior art, the present invention the beneficial effect is that: 1) for the present apparatus under the conditions of visualization, analog is different empty
Gas discharge capacity, landwaste amount, landwaste partial size, the drill string degree of eccentricity, drill string revolving speed and formation water production are to air horizontal well drilling Cutting movement
The influence of rule；2) water supply part is installed, the underground work situation under the conditions of analog formation water output is met for underground mud shale
The accidents such as blocking annular space, bit freezing caused by water bonding provide experimental analysis approach；3) separation with recovery section can make solid, liquid,
Gas three-phase is sufficiently separated, and can be recycled after landwaste recycling, saved experimental material；4) since Cutting movement is only to air
Dynamic pressure requires, and down-hole annular analog portion pressure drop also substantially conforms to actual conditions, therefore can be passed through low-pressure air using the present apparatus
It is tested, avoids actual conditions mesohigh air bring security risk；5) present apparatus is feature-rich, and structure is simple, makes
With safety, and build lower with operating cost.
Detailed description of the invention
Fig. 1 is the schematic diagram that a kind of air horizontal well drilling annular space of the present invention takes rock simulator；
Fig. 2 is enlarged cross-sectional view at A in Fig. 1；
Fig. 3 is enlarged left view at B in Fig. 1.
In figure: 1. blowers, 2. steel pipes, 3. vortex-shedding meters, 4. butterfly valves, 5. frequency converters, 6. storage sand launders, 7. rotary valves, 8.
Ball valve, 9. water pipes, 10. suspended body flowmeters, 11. glass tubes, 12.PVC tool joint, 13. supports of pipelines, 14.PVC pipe, 15. times
Receive bucket, 16. sieves, 17. rolling bearings, 18. rotational handles, 19. adjustable supports, 20. drainpipes, 21. A-frames, 22. marks
Ruler, 23. tripods, 24. computers, 25. high speed cameras, 26. accelerating chamber, 27. charging supports, 28. square frames, 29. control cabinets,
30. rubber curtain, 31. sieve plates, 32. adjusting bolts, 33. multiphase inflow entrances, 34. gaseous phase outlets, 35. liquid-phase outlets, 36. solid phases go out
Mouthful, the outlet of 37.PVC pipe.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing.
As shown in Fig. 1 ~ 3, a kind of air horizontal well drilling annular space takes rock simulator, including gas supply part, for landwaste part,
Down-hole annular analog portion, water supply part, separation and recovery part and part of data acquisition.It is characterized by: the gas supply part
Be sequentially connected and formed by blower 1, steel pipe 2, vortex-shedding meter 3 and butterfly valve 4, it is described for landwaste part by storage sand launder 6, rotary valve 7,
Frequency converter 5, accelerating chamber 26 and charging support 27 from top to bottom form, and the down-hole annular analog portion is by glass tube 11, pvc pipe
14, PVC tool joint 12, rolling bearing 17, rotational handle 18, adjusting bolt 32, rubber curtain 30, support of pipelines 13 and adjustable supporting
Frame 19 etc. constitute, wherein pvc pipe 14 is located in glass tube 11, the water supply part by water pipe 9, suspended body flowmeter 10, ball valve 8 according to
Secondary to be connected to 11 upper opening of glass tube composition, the separation and recovery part is by recycling bin 15, sieve plate 31, sieve 16, drainpipe
20 and A-frame 21 form, the part of data acquisition is by high speed camera 25, tripod 23, computer 24 and 22 groups of scale
At.
The vortex-shedding meter 3, butterfly valve 4 are connected by steel pipe 2 and the outlet of blower 1, to adjust air mass flow；The rotation
Valve 7 is connected with butterfly valve 4, glass tube 11 respectively mounted in 26 top of accelerating chamber, 26 both ends of accelerating chamber, and rotary valve 7 passes through frequency converter 5
Control revolving speed；The glass tube 11 uses transparent, wear-resistant material, can directly observe air and take rock process, reach visual effect
Fruit is connected by flange bolt between glass tube 11, and pvc pipe 14 is loaded in glass tube 11 after connecting with PVC tool joint 12；Institute
It states adjustable support 19 to divide for top half and lower half portion, wherein top half and rolling bearing 17 are interference fitted, lower half portion
It is fixed on ground with swell fixture, upper and lower two parts are connected by adjusting bolt 32, by adjusting the highly changeable pvc pipe of bolt 32
14 height achieve the purpose that change its eccentricity.15 inside of recycling bin is bent towards in addition, using between pvc pipe 14 and recycling bin 15
Rubber curtain 30 seal；The water supply device is sequentially connected by water pipe 9, suspended body flowmeter 10, ball valve 8, wherein suspended body flowmeter
10 are bolted on bracket, and water pipe connects ball valve 8, suspended body flowmeter 10, are controlled by suspended body flowmeter 10 and ball valve 8
Water supply；There are multiphase inflow entrance 33, gaseous phase outlet 34, liquid-phase outlet 35, solid-phase outlet 36, pvc pipe to go out on the recycling bin 15
Mouthfuls 37 totally five entrances, wherein multiphase inflow entrance 33 is connected with 11 tail end of glass tube, is fixed at gaseous phase outlet 34 with iron hoop
Sieve 16 is welded with drainpipe 20, closing door is housed at solid-phase outlet 36 to separate gas phase and solid phase at liquid-phase outlet 35, can
Recycling solid phase is opened, recycling bin 15 is connect by bolt with A-frame 21, and A-frame 21 makes recycling bin 15 and ground at 5 °
Angle facilitates liquid phase to flow out by drainpipe 20, and sieve plate 31 is fixed in recycling bin 15, by multiphase inflow entrance and liquid-phase outlet every
It opens, to separate solid phase and liquid phase, that is, realizes the recycling of three phase separation and solid phase；The scale 22 is pasted under glass tube 11
Portion, for measuring displacement of the landwaste within the unit time.
Using the method for above-mentioned apparatus simulated air horizontal well drilling Cutting movement, mainly include the following steps that.
1) gas supply part discharge capacity is changed by regulating butterfly valve 4, record vortex-shedding meter 3 is read, and analog difference annular space returns
The lower air of speed takes rock situation, records plus landwaste amount, 14 revolving speed of pvc pipe, the degree of eccentricity, landwaste motion profile, landwaste settle into
Bed and restart situation, analyze influence of the different air displacements to rock effect is taken.
2) landwaste additional amount, the coal powder quantity of bore generated under different drilling speeds in analog drilling well, note are changed by control frequency converter 5
The reading of vortex-shedding meter 3,14 revolving speed of pvc pipe, the degree of eccentricity, landwaste motion profile, landwaste settle into bed and restart situation under recording,
Analyze influence of the different coal powder quantity of bore to rock effect is taken.
3) change the degree of eccentricity of pvc pipe 14, different bias in analog horizontal well by control 19 height of adjustable support
The working condition for spending drill string records the reading of vortex-shedding meter 3 plus landwaste amount, 14 revolving speed of pvc pipe, landwaste motion profile, landwaste
It settles into bed and restarts situation, analyze influence of the different drill string degree of eccentricitys to rock effect is taken.
4) change the revolving speed of pvc pipe 14 by rotational handle 18, the work of different rotating speeds drill string in analog horizontal well
Rotation, record the reading of vortex-shedding meter 3 plus landwaste amount, 14 degree of eccentricity of pvc pipe, landwaste motion profile, landwaste settle into bed and
Restart situation, analyzes influence of the different drill string revolving speeds to rock effect is taken.
5) water supply part flow is changed by regulation ball valve 8, working condition when formation water output, record are met in analog underground
Lower vortex-shedding meter 3 reading, the reading of suspended body flowmeter 10 plus landwaste amount, 14 revolving speed of pvc pipe, the degree of eccentricity, landwaste motion profile,
Landwaste settles into bed and restarts situation, analyzes different formation water productions and meets water to the influence for taking rock effect and mud shale
The consequence that drilling process may be generated after bonding.
When starting simulated experiment, air enters accelerating chamber 26, landwaste through steel pipe 2, vortex-shedding meter 3 and butterfly valve 4 by blower 1
Enter accelerating chamber 26 by storage sand launder 6, rotary valve 7, air is mixed with landwaste in accelerating chamber 26, is formed Dual-Phrase Distribution of Gas olid and is entered
Annular space between glass tube 11 and pvc pipe 14.When needing to fill the water, tap water enters annular space by suspended body flowmeter 10, ball valve 8,
Gas-solid liquid three-phase fluid, the ring that three-phase flow is formed by pvc pipe 14, PVC tool joint 12 and glass tube 11 are formed with air, landwaste
Observation can be carried out when empty and shoots experimental phenomena.Three-phase flow finally enters recycling bin 15, and air is discharged from water through different outlets, rock
Bits stay in recycling bin 15 to utilize again.In experimentation, by change air displacement, landwaste amount, 14 degree of eccentricity of pvc pipe,
Air horizontal well drilling annular space takes rock situation under 14 revolving speed of pvc pipe and water supply flow analog various working factor, need to record vortex street
The reading of flowmeter 3, the reading of suspended body flowmeter 10, the reading of frequency converter 5,14 degree of eccentricity of pvc pipe, 14 unit time of pvc pipe turning collar
Number, while observable operating condition factor air horizontal well drilling annular space different from shooting takes rock situation.
Claims (2)
1. a kind of air horizontal well drilling annular space takes rock simulator, structure specifically includes that blower (1), steel pipe (2), vortex street stream
Meter (3), butterfly valve (4), frequency converter (5), storage sand launder (6), rotary valve (7), ball valve (8), water pipe (9), suspended body flowmeter (10),
Glass tube (11), PVC tool joint (12), support of pipelines (13), pvc pipe (14), recycling bin (15), sieve (16), the axis of rolling
Hold (17), rotational handle (18), adjustable support (19), drainpipe (20), A-frame (21), scale (22), tripod (23),
Computer (24), high speed camera (25), accelerating chamber (26), charging support (27), square frame (28), control cabinet (29), rubber curtain
(30), sieve plate (31), adjusting bolt (32), multiphase inflow entrance (33), gaseous phase outlet (34), liquid-phase outlet (35), solid-phase outlet
(36), pvc pipe outlet (37)；It is technically characterized in that gas supply part by blower (1), steel pipe (2), vortex-shedding meter (3) and butterfly
Valve (4) is sequentially connected composition, and blower (1) is by being threadedly connected to square frame (28), and power supply is accessed by control cabinet (29), for landwaste
Part is from top to bottom made of storage sand launder (6), rotary valve (7), frequency converter (5), accelerating chamber (26) and charging support (27), underground
Annular space analog portion by glass tube (11), pvc pipe (14), PVC tool joint (12), rolling bearing (17), rotational handle (18),
It adjusts bolt (32), rubber curtain (30), support of pipelines (13) and adjustable support (19) to constitute, wherein pvc pipe (14) is located at glass
It manages in (11), water supply part is sequentially connected to glass tube (11) upper opening by water pipe (9), suspended body flowmeter (10), ball valve (8)
It constituting, separation and recovery part is made of recycling bin (15), sieve plate (31), sieve (16), drainpipe (20) and A-frame (21),
Part of data acquisition is made of high speed camera (25), tripod (23), computer (24) and scale (22), the recycling bin (15)
On have multiphase inflow entrance (33), gaseous phase outlet (34), liquid-phase outlet (35), solid-phase outlet (36), pvc pipe outlet (37) totally five
Entrance, wherein multiphase inflow entrance (33) is connected with glass tube (11) tail end, and (34) are fixed with sieve with iron hoop at gaseous phase outlet
(16), it to separate gas phase and solid phase, is welded at liquid-phase outlet (35) drainpipe (20), equipped with closing at solid-phase outlet (36)
Door can open recycling solid phase, and recycling bin (15) is connect by bolt with A-frame (21), and A-frame (21) makes recycling bin
(15) and ground is at 5 ° of angles, facilitates liquid phase to flow out by drainpipe (20), pvc pipe exports at (37), pvc pipe (14) and recycling bin
(15) using rubber curtain (30) sealing bent towards on the inside of recycling bin (15) between, sieve plate (31) is fixed in recycling bin (15), will
Multiphase inflow entrance (33) is separated with liquid-phase outlet (35), to separate solid phase and liquid phase, that is, realizes three phase separation and solid phase
Recycling.
2. a kind of air horizontal well drilling annular space according to claim 1 takes rock simulator, it is characterised in that: described adjustable
Bracket (19) is divided into top half and lower half portion, and wherein top half and rolling bearing (17) are interference fitted, and lower half portion is used
Swell fixture is fixed on ground, and upper and lower two parts are connected by adjusting bolt (32), and PVC can be changed by adjusting bolt (32) height
(14) height is managed, achievees the purpose that change its eccentricity.
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| CN201611037830.7A CN106761720B (en) | 2016-11-23 | 2016-11-23 | A kind of air horizontal well drilling annular space takes rock simulator |
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| CN201611037830.7A CN106761720B (en) | 2016-11-23 | 2016-11-23 | A kind of air horizontal well drilling annular space takes rock simulator |
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| CN106761720B true CN106761720B (en) | 2019-08-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110118080B (en) * | 2019-05-17 | 2023-12-19 | 中国地质大学（武汉） | Test device for simulating eccentric rotation of horizontal drilling drill rod |
| CN111827910B (en) * | 2020-08-11 | 2022-04-19 | 西南石油大学 | Experimental device and experimental method for exploring formation of detritus bed in horizontal well drilling |
| CN112227989A (en) * | 2020-11-18 | 2021-01-15 | 中国石油天然气集团有限公司 | Visual horizontal annulus rock debris migration simulation method |
| CN112227988A (en) * | 2020-11-18 | 2021-01-15 | 中国石油天然气集团有限公司 | Visual horizontal annular space rock debris migration simulation equipment |
| CN113628525A (en) * | 2021-09-17 | 2021-11-09 | 西南石油大学 | Device and method for simulating rock carrying of reverse circulation eccentric flow field of gas drilling |
| CN115236118B (en) * | 2022-09-21 | 2023-03-24 | 西南石油大学 | Method for analyzing scaling condition of geothermal fluid in pipeline |
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| ATE392536T1 (en) * | 2004-04-23 | 2008-05-15 | Shell Int Research | PREVENTING SCABING EFFECTS IN DRILL HOLES |
| CN103323212A (en) * | 2013-06-28 | 2013-09-25 | 西南石油大学 | Experimental device and method for simulating wellbore annulus drilling fluid flow characteristics |
| CN103485738B (en) * | 2013-10-11 | 2016-07-06 | 西南石油大学 | A kind of horizontal well Cutting movement analogue experiment installation and experimental technique |
| CN103527185B (en) * | 2013-10-29 | 2017-03-29 | 中国石油化工股份有限公司 | Horizontal well physical simulation experiment device and its experimental technique |
| CN203603806U (en) * | 2013-12-09 | 2014-05-21 | 中国石油大学(北京) | Rock debris transportation simulating device |
| CN204371159U (en) * | 2015-01-08 | 2015-06-03 | 西南石油大学 | A kind of device of analog gas horizontal well drilling horizontal segment Cutting movement |
| CN204632241U (en) * | 2015-05-15 | 2015-09-09 | 西南石油大学 | A kind of device of analog gas horizontal well drilling full hole Cutting movement |
| CN105464606B (en) * | 2015-12-02 | 2018-05-18 | 西南石油大学 | A kind of simulation drilling Double-working-condition sand-carrying production Multiphase Flow experimental provision and method |
| CN205330658U (en) * | 2016-01-05 | 2016-06-22 | 西南石油大学 | Visual experimental apparatus of simulation gas drilling detritus migration |
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