CN203785863U - Cavitation experiment table of drilling fluid for drilling - Google Patents
Cavitation experiment table of drilling fluid for drilling Download PDFInfo
- Publication number
- CN203785863U CN203785863U CN201420010859.6U CN201420010859U CN203785863U CN 203785863 U CN203785863 U CN 203785863U CN 201420010859 U CN201420010859 U CN 201420010859U CN 203785863 U CN203785863 U CN 203785863U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- case
- drilling
- cavitation
- drilling fluid
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 39
- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 238000002474 experimental method Methods 0.000 title claims abstract description 21
- 239000011435 rock Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a cavitation experiment table of drilling fluid for drilling. The cavitation experiment table comprises a shield, a rock core tube, a drill bit, a rotary table and a driving mechanism; an upper cover is arranged at the top of the shield; the rock core tube penetrates through the upper cover and extends into the shied; the rotary table capable of rotating along the shield is arranged at the bottom of the shield; the rotary table is provided with a containing slot for containing a rock sample; the drill bit is arranged at the bottom of the rock core tube; the drill bit extends into the containing slot to be contacted with the rock sample; the driving mechanism is connected with the rotary table by a rotary shaft; a cable hole and a water outlet are formed in the side surface of the shield and the water outlet is provided with a sensor; and a sensor cable passes through the cable hole to be connected with a power supply and an oscilloscope. The cavitation experiment table of the drilling fluid for drilling can research influences of cavitation on abnormal wear and rock breaking effects of the drill bit and the relationship between the cavitation and drilling regulation parameters, and lays the foundation of improving drilling technical-economical indexes.
Description
Technical field
The utility model relates to a kind of probing experiment table, especially relates to a kind of probing drilling fluid cavitation experiment table.
Background technology
Washing fluid is requisite consumables in drilling operation process.While creeping into operation, at the bottom of washing fluid flow to hole by drilling rod, the drill bit working lining of flowing through, by returning to earth's surface on the annular gap between drilling rod and hole wall, in this process, washing fluid plays the effects such as cooling drill bit, cutting carring and lubricated drilling tool.Washing fluid is when the drilling rod of flowing through, drill bit and outer ring-like gap, and water-carrying section often changes, and changes particularly evident during through the drill bit mouth of a river.When one timing of washing fluid flow, flow section changes must cause change in flow, and change in flow may cause liquid washing fluid to become gas-liquid mixture, and this phenomenon that causes washing fluid to become gas-liquid mixture due to change in flow is exactly cavitation.Cavitation can cause very serious infringement to drill bit, affects ability to work and the serviceable life of drill bit.When drill bit fractured rock, whether washing fluid there is cavitation, and how cavitation has influence on the end to drill bit, and the research of these problems is very important for the serviceable life of improving probing quality and prolongation drill bit.
Utility model content
The purpose of this utility model is, for the problems referred to above, a kind of probing drilling fluid cavitation experiment table is provided, for study drilling process washing fluid cavitation there is situation and rule thereof, be convenient to hole subdrilling to enter state and drill bit damage type carries out more deep research.The problems referred to above that exist to solve existing drilling technique.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of probing drilling fluid cavitation experiment table, it comprises case, basket, drill bit, panoramic table and driving mechanism, wherein, the top of described case is provided with upper cover, described basket stretches in case through described upper cover, the bottom of described case is provided with the panoramic table that can rotate along case, on described panoramic table, be provided with the storage tank for accommodating rock sample, the bottom of described basket is provided with drill bit, described drill bit stretches in storage tank and contacts with rock sample, described driving mechanism connects panoramic table by rotating shaft, and on the side of described case, offer cable-through hole and water delivering orifice, several places, mouth of a river of described drill bit are provided with sensor, sensor cable is connected with oscillograph with power supply respectively through cable-through hole, described water outlet is provided with tensimeter and valve.
Especially, described upper cover seals by O-ring seal and case.
Especially, described case is cylindrical structure.
Especially, described driving mechanism adopts drive motor, and described drive motor is installed on support and its clutch end connects one end of described rotating shaft, and described rotating shaft is by bearing assemble on support, and the other end connects the bottom of described panoramic table.
The beneficial effects of the utility model are to enter state with the existing actual hole subdrilling creeping into of described probing drilling fluid cavitation experiment table simulation of comparing.When drill bit creeps into fragmentation to rock sample, washing fluid can be from the drill bit of flowing through in basket, and flow outside drill bit by the mouth of a river of drill bit end, washing fluid is in the mouth of a river, drill bit end of flowing through, and sensor can be measured the resistance value of washing fluid, if resistance changes, illustrate that washing fluid is becoming gas-liquid mixture, there is hydrodynamic effect, produce cavitation, the signal that oscillograph receiving sensor detects.Relation with research cavitation on impact, cavitation and the Drilling Techno-logical of drill bit heel and toe wear and rock failure effect (axle carries, rotating speed, flushing fluid), for further improving drilling technique economic target, lay the foundation, and then give security for improving the serviceable life of drilling quality and extending drill bit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the probing drilling fluid cavitation experiment table that provides of the utility model embodiment 1;
Fig. 2 is the arrangenent diagram of the sensor of the probing drilling fluid cavitation experiment table that provides of the utility model embodiment 1.
In figure:
1, case; 2, basket; 3, drill bit; 4, panoramic table; 5, O-ring seal; 6, upper cover; 7, rock sample; 8, rotating shaft; 9, bearing; 10, support; 11, cable-through hole; 12, water delivering orifice; 13, sensor; 14, sensor cable; 15, power supply; 16, oscillograph; 17, tensimeter; 18, valve.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, further illustrate the technical solution of the utility model.
Please refer to shown in Fig. 1 and Fig. 2, in the present embodiment, a kind of probing drilling fluid cavitation experiment table comprises case 1, basket 2, drill bit 3 and panoramic table 4, described case 1 is sealed and installed with upper cover 6 for its top of cylindrical structure by O-ring seal 5, described basket 2 stretches in case 1 through described upper cover 6, the bottom of described case 1 is provided with the panoramic table 4 that can rotate along case 1, on described panoramic table 4, be provided with the storage tank for accommodating rock sample 7, and one end of the bottom connection rotating shaft 8 of described panoramic table 4, described rotating shaft 8 is installed on support 10 by bearing 9, and the other end of described rotating shaft 8 connects the power output shaft of drive motor, the bottom of described basket 2 is provided with drill bit 3, described drill bit 3 stretches in storage tank and contacts with rock sample 7, and on the side of described case 1, offer cable-through hole 11 and water delivering orifice 12, several places, mouth of a river of described drill bit 3 are provided with sensor 13, sensor cable 14 is connected with oscillograph 16 with power supply 15 respectively through cable-through hole 11, described water delivering orifice 12 places are provided with tensimeter 17 and valve 18, pressure for observation experiment process, and control the discharge capacity of washing fluid.
Before experiment, install rock sample 7 and drill bit 3 and other parts, debug sensor 13 and oscillograph 16, then in basket 2, sent into washing fluid, started drive motor, apply gyration and axial load to drill bit 3 and rock sample 7, simulate the actual hole subdrilling creeping into and enter state.When 3 pairs of rock samples 7 of drill bit creep into fragmentation, washing fluid can be from the drill bit 3 of flowing through in basket 2, and flows to drill bit 3 is outer by the mouth of a river of drill bit 3 ends, through valve 18, spills out.Washing fluid is in drill bit 3 mouths of a river, end of flowing through, and sensor 13 can be measured the resistance value of washing fluid, if resistance changes, illustrates that washing fluid is becoming gas-liquid mixture, and hydrodynamic effect occurs, and produces cavitation.
In experimentation, adopt clear water as washing fluid, the resistance ratio of aqueous water is lower, and when cavitation makes to produce gas in water, the density of water reduces, and its resistance will increase, and cavitation is stronger, and the gas producing in water is more, and resistance value will be larger.This testing table can need to change flow and the pressure of washing fluid according to experiment, changes rotating speed and axial load, and research difference is crept into the cavitation under state.
Utilize drilling fluid cavitation experiment table can study the relation of cavitation on impact, cavitation and the Drilling Techno-logical of drill bit heel and toe wear and rock failure effect (axle carries, rotating speed, flushing fluid), for further improving drilling technique economic target, lay the foundation.
Above embodiment has just set forth ultimate principle of the present utility model and characteristic; the utility model is not limited by above-described embodiment; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. drill drilling fluid cavitation experiment table for one kind, it comprises case, basket, drill bit, panoramic table and driving mechanism, it is characterized in that: the top of described case is provided with upper cover, described basket stretches in case through described upper cover, the bottom of described case is provided with the panoramic table that can rotate along case, on described panoramic table, be provided with the storage tank for accommodating rock sample, the bottom of described basket is provided with drill bit, described drill bit stretches in storage tank and contacts with rock sample, described driving mechanism connects panoramic table by rotating shaft, and on the side of described case, offer cable-through hole and water delivering orifice, several places, mouth of a river of described drill bit are provided with sensor, sensor cable is connected with oscillograph with power supply respectively through cable-through hole, described water outlet is provided with tensimeter and valve.
2. a kind of probing drilling fluid cavitation experiment table according to claim 1, is characterized in that: described upper cover seals by O-ring seal and case.
3. a kind of probing drilling fluid cavitation experiment table according to claim 1, is characterized in that: described case is cylindrical structure.
4. a kind of probing drilling fluid cavitation experiment table according to claim 1, it is characterized in that: described driving mechanism adopts drive motor, described drive motor is installed on support and its clutch end connects one end of described rotating shaft, described rotating shaft is by bearing assemble on support, and the other end connects the bottom of described panoramic table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010859.6U CN203785863U (en) | 2014-01-08 | 2014-01-08 | Cavitation experiment table of drilling fluid for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010859.6U CN203785863U (en) | 2014-01-08 | 2014-01-08 | Cavitation experiment table of drilling fluid for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785863U true CN203785863U (en) | 2014-08-20 |
Family
ID=51322040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010859.6U Expired - Lifetime CN203785863U (en) | 2014-01-08 | 2014-01-08 | Cavitation experiment table of drilling fluid for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616550A (en) * | 2015-01-08 | 2015-05-13 | 西南石油大学 | Method for simulating virtual assembling of land rig |
-
2014
- 2014-01-08 CN CN201420010859.6U patent/CN203785863U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616550A (en) * | 2015-01-08 | 2015-05-13 | 西南石油大学 | Method for simulating virtual assembling of land rig |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Patentee after: Zhongdizhuang (Wuxi) drilling tools Co.,Ltd. Address before: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Patentee before: WUXI DRILLING TOOLS FACTORY |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |