CN2118806U - Hollow adjustable displacement screw rod drill - Google Patents
Hollow adjustable displacement screw rod drill Download PDFInfo
- Publication number
- CN2118806U CN2118806U CN 92208594 CN92208594U CN2118806U CN 2118806 U CN2118806 U CN 2118806U CN 92208594 CN92208594 CN 92208594 CN 92208594 U CN92208594 U CN 92208594U CN 2118806 U CN2118806 U CN 2118806U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- displacement
- hollow
- drill
- slurry
- 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.)
- Granted
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Abstract
The utility model relates to a hollow adjustable displacement screw rod drill of the drilling equipment of the petroleum and geology. The hollow adjustable displacement screw rod drill is characterized in that a solid screw rod in a Lz 165 or Lz 172 type screw rod drill is replaced by a hollow screw rod whose middle is provided with a water hole. The top part of the screw rod is added with an adjustable nozzle. Through replacing the nozzles of different hole diameters and adopting the screw rod whose middle is provided with the water hole, the requirement that the displacement of the slurry can be adjusted according to the drilling technology is realized. Therefore, the action of the hydraulic horsepower, the speed of the drilling footage and the carrying ability of the slurry are improved. The rotational speed of the motor of the drill under the big displacement is kept unchanged. The utility model has the advantages of high quality, simple structure and convenient operation. The displacement of the slurry before the improvement is 18-22 cubic liter/second, and the displacement of the slurry after the improvement is 20-30 cubic liter/second.
Description
The utility model belongs to the petroleum geology drilling rig
At present, the helicoid hydraulic motor of Lz165 commonly used or Lz172 specification in oil drilling work, because the screw rod of drilling tool is the restriction of real core and motor dimension, mud displacement is all smaller, is generally 18-22 liter/second.Can not satisfy the requirement of oil drilling technology fully.And can not utilize the water horse power of drilling mud pump fully, cause the carrying capacity of mud to descend; Drill footage is slow, and the deep-well reflection is particularly outstanding; Part mud can't lead directly to the shaft bottom, has reduced the effect of water horse power; Drill string vibration is excessive, causes the drilling tool parts wear too fast; Well-drilling borehole is of low quality; Rotor weight is excessive.
The purpose of this utility model is:
Screw rod top in drilling tool adds a nozzle, nozzle and the middle hollow screw that has hydrophthalmia of employing by the different apertures of conversion, realization can be regulated the requirement of size according to drilling technology to the discharge capacity of mud, make part mud lead directly to the shaft bottom, thereby reach the cutting carring ability that improves water horse power effect and drill footage speed and mud.
The utility model is made of by-pass valve assembly 1, motor assembly 2, nozzle 3, hollow screw 4, stator 5, universal drive shaft assembly 6 and main shaft.
Technical solution of the present utility model is to realize like this, realize being connected by taper thread in by-pass valve assembly 1 bottom with motor, the hollow screw 4 that has hydrophthalmia in the middle of screw rod in the motor is changed into by former real core screw rod, nozzle 3 is equipped with at its top, according to the difference in aperture, the nozzle that interchangeable is different.Nozzle 3 is fixed on the top of hollow screw 4 with elastic scheibe by the hole.Hollow screw 4 is hollows, drills through in the middle of the screw rod.The screw rod bottom joins by straight thread and universal drive shaft assembly 6, and universal drive shaft assembly 6 links to each other with main shaft.
Screw rod begins rotation when high-pressure slurry enters the drilling tool motor, can be converted to the mechanical energy that screw rod rotates to mud pressure, and a part of mud flows out motor from the space of screw rod and stator.Under the situation of moment of torsion that satisfies drilling well and screw rod rotary speed, another part mud can directly flow out motor from the screw hole of hollow screw, with entering the shaft bottom together, participate in the work of creeping into of drill bit.
The utility model compared with prior art has following advantage:
1. solved the little technical problem of drilling tool discharge capacity, it is constant to remain under the big discharge capacity drilling tool motor rotary speed;
2. the increase of drilling tool discharge capacity correspondingly improves the landwaste carrying capacity of drilling tool penetration rate and mud;
3. can make the straight-through shaft bottom of part drilling fluid improve the water horse power effect;
4. because rotor weight alleviates, reduced the centrifugal force in the rotor motion, the vibration that has alleviated drilling tool improves the well-drilling borehole quality.
Accompanying drawings the utility model:
Figure one is a longitudinal profile schematic diagram of the present utility model
1, by-pass valve assembly 2, motor assembly
3, nozzle 4, hollow screw
5, stator 6, universal drive shaft assembly
By-pass valve assembly 1 is connected with motor assembly 2 by taper thread among the figure, and nozzle 3 is equipped with at hollow screw 4 tops in the motor assembly 2, and nozzle 3 usefulness circlip for holes are fixed on the top of hollow screw 4.Can be according to the needs conversion nozzle 3 of drilling well.Stator is meshed with rotor.The screw rod bottom joins with universal drive shaft assembly 6.
Claims (2)
1, a kind of hollow adjustable displacement helicoid hydraulic motor that is used for the petroleum geology drilling equipment, comprise by-pass valve assembly, motor assembly, screw rod, stator, universal drive shaft assembly, it is characterized in that: screw rod is a hollow, its top adds an exchangeable nozzle, and nozzle is to be fixed on the hollow screw top by the hole with elastic scheibe.
2, according to the said hollow adjustable displacement of claim 1 helicoid hydraulic motor, it is characterized in that: can change different nozzles according to the aperture difference of boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92208594 CN2118806U (en) | 1992-05-07 | 1992-05-07 | Hollow adjustable displacement screw rod drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92208594 CN2118806U (en) | 1992-05-07 | 1992-05-07 | Hollow adjustable displacement screw rod drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2118806U true CN2118806U (en) | 1992-10-14 |
Family
ID=4954067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92208594 Granted CN2118806U (en) | 1992-05-07 | 1992-05-07 | Hollow adjustable displacement screw rod drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2118806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255016A (en) * | 2017-07-25 | 2017-10-17 | 盐城市荣嘉机械制造有限公司 | One kind can adjust hollow shunting screw drill |
-
1992
- 1992-05-07 CN CN 92208594 patent/CN2118806U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255016A (en) * | 2017-07-25 | 2017-10-17 | 盐城市荣嘉机械制造有限公司 | One kind can adjust hollow shunting screw drill |
| CN107255016B (en) * | 2017-07-25 | 2019-12-17 | 盐城市荣嘉机械制造有限公司 | Adjustable cavity reposition of redundant personnel screw drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |