CN2703863Y - Dual-function shock-damping propellor - Google Patents
Dual-function shock-damping propellor Download PDFInfo
- Publication number
- CN2703863Y CN2703863Y CN 200420066903 CN200420066903U CN2703863Y CN 2703863 Y CN2703863 Y CN 2703863Y CN 200420066903 CN200420066903 CN 200420066903 CN 200420066903 U CN200420066903 U CN 200420066903U CN 2703863 Y CN2703863 Y CN 2703863Y
- Authority
- CN
- China
- Prior art keywords
- damping
- rod
- piston
- pumped well
- urceolus
- 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 - Fee Related
Links
Abstract
The utility model relates to a pipe string anchoring device for fixed point pressure measurement rod-pumped well which solves the problem of the interaction between an existing pipe string and a formation pressure test device. The pipe string anchoring device for fixed point pressure measurement rod-pumped well is characterized in that the outer cylinders (5) of two balance holes (3, 10) are connected below an upper joint (1); the inner walls of the outer cylinders (5) are parallelly provided with a first grade piston (2) and a second grade piston (4) up and down; a mandrel (8) with a boss (9) is connected below the second grade piston (4); a splined joint is provided between the outer cylinders (5) and the boss (9); silicone oil is arranged inside an oil cylinder (6) between the outer cylinders (5) and the mandrel (8). The utility model realizes the anchoring of the pipe string of the rod-pumped well at the same time of not influencing the fixed point pressure measurement, which enhances the pumping efficiency of the rod-pumped well and extends the pump inspection period of the rod-pumped well.
Description
Technical field:
The utility model relates to the drilling tool damping device in the field of oil drilling, belongs to a kind of difunctional damping propeller.
Background technology:
In field of oil drilling, drilling tool can produce vibrations when creeping into, and influences rate of penetration and drill tool life, so must use the drilling tool shock absorber, because the pressure of the drill provides by drill collar gravity, present shock absorber does not have propulsion functions; When horizontal well creeps into, drilling tool pressurization difficulty, rate of penetration is slow, and drilling quality is also poor, so often uses increase the pressure of the drill device on the drilling tool.The drill thrust device can provide certain the pressure of the drill for drill bit, also have excellent vibration damping effect, but the pressure of the drill that it applied is controlled by bit pressuredrop, fixes often, does not satisfy the needs of normal drilling well.
Summary of the invention:
In order to overcome the damping and the pressure of the drill aggrandizement apparatus that have drilling tool now is the deficiency of one installation and complex structure and damping and drilling tool counterbalance effect difference, the utility model provides a kind of difunctional damping propeller, this device combines the principle and the angle of rake principle of fluid power of damper, realize that structurally damper and fluid power are angle of rake in parallel, have the characteristics of good damping effect and pressurized equilibrium.
The technical scheme that the utility model can be taked is: this difunctional damping propeller comprises top connection and axle, the urceolus of two balance pipes of top connection lower end connecting band, the inwall of urceolus is equipped with first stage piston and second piston up and down side by side, the second piston lower end connects the axle that has boss, be equipped with spline joint between urceolus and the boss, the oil cylinder between urceolus and the axle is built-in with silicone oil.
Above-mentioned balance pipe is the path place of corresponding I and II piston respectively; Silicone oil can be substituted by spring.
The beneficial effects of the utility model are: using this difunctional damping propeller, is the drill bit transfer torque by top connection, urceolus, spline and axle, is that drill bit applies fixing drilling pressure by differential pressure action in the power of multi-level piston; Hydraulic oil absorbing vibration energy by the oil cylinder between urceolus and the axle is built-in with plays cushioning effect, and the damping action by pressure compensation opening can be converted into heat energy to the part vibration energy, further reaches the purpose of damping.
Description of drawings:
Fig. 1 is a structure sectional view of the present utility model.
1-top connection among the figure, 2-first stage piston, 3-balance pipe, 4-second piston, 5-urceolus, 6-oil cylinder, 7-spline joint, 8-axle, 9-boss, 10-balance pipe.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
As shown in Figure 1, this difunctional damping propeller comprises top connection 1 and axle 8, two balance pipes (3 of top connection 1 lower end connecting band, 10) urceolus 5, the inwall of urceolus 5 is equipped with first stage piston 2 and second piston 4 up and down side by side, and balance pipe (3,10) is corresponding I and II piston (2 respectively, 4) path place is that drill bit applies fixing drilling pressure by differential pressure action in the power of multi-level piston; Second piston 4 lower ends connect the axle 8 that has boss 9, be equipped with spline joint 7 between urceolus 5 and the boss 9, by top connection 1, urceolus 5, spline joint 7 and axle 8 is the drill bit transfer torque, oil cylinder 6 between urceolus 5 and the axle 8 is built-in with silicone oil, the absorbing vibration energy, play cushioning effect, hydraulic oil can be substituted by spring, can finish shock-absorbing function equally; Damping action by pressure compensation opening (3,10) can be converted into heat energy to the part vibration energy, further reaches the purpose of damping.
Owing to use this shock-damping propellor, 1, have a dual effect of damper and hydraulic thruster Really, so the liquid damping element can not produce fatigue damage, long service life, and working range is wide. 2, have the not advantage of storing energy, namely damping action is big, and vibration attenuation is fast, can make drill bit The pressure of the drill is than every other shock absorber balanced, balance all, and damping property is good. It is 3, simple in structure, Handling ease is convenient to maintenance. 4 are specially adapted to directional well drilling, can play shock absorber and add The double action of pressure device overcomes actual boring on directional well wall friction ground indication bit pressure and the drill bit Press inconsistent problem, pressurization evenly. 5, both be suitable for rock bit, be suitable for again PDC Drill bit.
Claims (3)
1, a kind of difunctional damping propeller, comprise top connection (1) and axle (8), it is characterized in that: two balance pipes (3 of top connection (1) lower end connecting band, 10) urceolus (5), the inwall of urceolus (5) is equipped with first stage piston (2) and second piston (4) up and down side by side, second piston (4) lower end connects the axle (8) that has boss (9), is equipped with spline joint (7) between urceolus (5) and the boss (9), and the oil cylinder (6) between urceolus (5) and the axle (8) is built-in with silicone oil.
2, difunctional damping propeller according to claim 1 is characterized in that: balance pipe (3,10) is the path place of corresponding I and II piston (2,4) respectively.
3, difunctional damping propeller according to claim 1 is characterized in that: silicone oil can be substituted by spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066903 CN2703863Y (en) | 2004-06-10 | 2004-06-10 | Dual-function shock-damping propellor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066903 CN2703863Y (en) | 2004-06-10 | 2004-06-10 | Dual-function shock-damping propellor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703863Y true CN2703863Y (en) | 2005-06-08 |
Family
ID=34777793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066903 Expired - Fee Related CN2703863Y (en) | 2004-06-10 | 2004-06-10 | Dual-function shock-damping propellor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703863Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059061B (en) * | 2007-04-26 | 2012-10-03 | 倪红坚 | Sliding push-the-bit type steering drilling tool |
| CN101680277B (en) * | 2007-04-24 | 2013-06-12 | 韦尔泰克有限公司 | Stroker tool |
| CN107246240A (en) * | 2017-08-07 | 2017-10-13 | 中国石油大学(华东) | Adaptive torque balances differential pressure type drill bit |
-
2004
- 2004-06-10 CN CN 200420066903 patent/CN2703863Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680277B (en) * | 2007-04-24 | 2013-06-12 | 韦尔泰克有限公司 | Stroker tool |
| CN101059061B (en) * | 2007-04-26 | 2012-10-03 | 倪红坚 | Sliding push-the-bit type steering drilling tool |
| CN107246240A (en) * | 2017-08-07 | 2017-10-13 | 中国石油大学(华东) | Adaptive torque balances differential pressure type drill bit |
| CN107246240B (en) * | 2017-08-07 | 2019-03-19 | 中国石油大学(华东) | Adaptive torque balances differential pressure type drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050608 Termination date: 20130610 |