CN201627579U - Continuous-wave generator with bidirectional wheel - Google Patents
Continuous-wave generator with bidirectional wheel Download PDFInfo
- Publication number
- CN201627579U CN201627579U CN2010200029990U CN201020002999U CN201627579U CN 201627579 U CN201627579 U CN 201627579U CN 2010200029990 U CN2010200029990 U CN 2010200029990U CN 201020002999 U CN201020002999 U CN 201020002999U CN 201627579 U CN201627579 U CN 201627579U
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- China
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- valve seat
- way
- wave generator
- bidirectional wheel
- taking turns
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- Expired - Lifetime
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Abstract
The utility model relates to a continuous-wave generator with a bidirectional wheel, which realizes downhole data transmission via continuous wave mud pulse during a drilling process. A spindle of a stepping motor is connected with the bidirectional wheel (6), four square holes are uniformly distributed on the wall of the bidirectional wheel (6), a valve seat (7) is sleeved on the outer side of the bidirectional wheel (6), four cambered grooves are uniformly distributed on the valve seat (7), and the four square holes on the bidirectional wheel (6) are radially opposite to positions of the four cambered grooves on the valve seat (7). Besides, a control circuit controls the stepping motor to drive the bidirectional wheel (6) to rotate forwards or reversely, and positions of the square holes on the bidirectional wheel (6) and the cambered grooves on the valve seat (7) are changed, thereby changing mud pulse through changes of flow rate of drilling fluid and pressure. The continuous-wave generator is simple in structure, convenient for operation and easy in implement. The mechanical and electrical integration design simplifies structure of the generator and increases working stability and efficiency thereof.
Description
Technical field
The utility model relates to field of oil drilling, and a kind of two-way continuous wave generator of taking turns belongs to the downhole tool class.
Background technology
Wireless drilling measuring system (MWD) is to carry out a kind of device that downhole data is measured and transmitted in real time in the drilling process, is characterized near the data that obtain under the situation of not interrupting normally creeping into to record the drill bit, and these transfer of data are arrived ground.Continuous wave pulse While drilling system is the fastest system of transmission data in the present wireless drilling system, and its operating principle is that the rotor of continuous wave impulse generator produces mud-pulse under the mud effect, by being converted into sine pressure wave behind the down-hole inserting tube coding.When the occurrence positions of stator with respect to rotor changes, make this sine or cosine compression wave occur phase shift or angular displacement in time, in the variation of these phase places of ground continuous detecting and frequency thereof, and by digital decoding and the survey data that calculates the down-hole.
Summary of the invention
For realizing adopting continuous wave mud-pulse transmission downhole data in the drilling process, the utility model provides a kind of two-way continuous wave generator of taking turns.
A kind of two-way continuous wave generator of taking turns, mainly by downhole generator, urceolus, centralizer, control circuit storehouse, motor bin, two-wayly take turns, valve seat etc. forms.Downhole generator links to each other from top to bottom successively with centralizer, control circuit storehouse, motor bin, and downhole generator is the whole system power supply.The supporting structure of centralizer is a rhombus or arc, and centralizer external diameter and urceolus internal diameter form matched in clearance, to keep the placed in the middle of whole tubing string.Control circuit places in the control circuit storehouse, is mainly used in the control step motor.Stepper motor places in the motor bin, and links to each other with two-way the wheel by the stepper motor main shaft.The two-way wheel is evenly equipped with four square holes on the wall.Valve seat is enclosed within the two-way outside of taking turns, and valve seat is evenly equipped with four arch grooves.Two-way four square holes of taking turns on the wall are radially relative with four arch groove positions on the valve seat.Two-way square hole height of taking turns is slightly larger than the arch groove height on the valve seat.Step in one annular is arranged at the urceolus bottom, and valve seat block is in this annular on the step.
The utility model major advantage is: the utility model is simple in structure, easy to operate, easy to implement.Centralizer can effectively keep the placed in the middle of whole tubing string.Two-wayly take turns the mud pressure stepless action that is subjected to all directions in the rotation process, resistance is less, and is stable, the pulse signal continous-stable of generation.Two-way square hole height of taking turns is slightly larger than the arch groove height on the valve seat, avoids blocking fully the mud runner, produces the pressure of seriously spraining, and causes the damage of instrument instrument.Structure that the utility model has adopted the electromechanical design simplification has improved job stability and efficient.
Description of drawings
Fig. 1 the utility model structural representation
Fig. 2 the utility model A-A sectional drawing
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
A kind of two-way continuous wave generator of taking turns shown in Fig. 1-2, mainly by downhole generator 1, urceolus 2, centralizer 3, control circuit storehouse 4, motor bin 5, two-wayly take turns 6, valve seat 7 etc. forms.Downhole generator 1 links to each other from top to bottom successively with centralizer 3, control circuit storehouse 4, motor bin 5, and downhole generator 1 is the whole system power supply.The supporting structure of centralizer 3 is a rhombus or arc, and centralizer 3 external diameters and urceolus 2 internal diameters form matched in clearance, to keep the placed in the middle of whole tubing string.Control circuit places in the control circuit storehouse 4, is mainly used in the control step motor.Stepper motor places in the motor bin 5, and takes turns 6 and link to each other with two-way by the stepper motor main shaft.The two-way wheel is evenly equipped with four square holes on 6 walls.Valve seat 7 is enclosed within two-way 6 outsides of taking turns, and valve seat 7 is evenly equipped with four arch grooves.Two-way four square holes of taking turns on 6 walls are radially relative with four arch groove positions on the valve seat 7.Two-way square hole height of taking turns on 6 is slightly larger than the arch groove height on the valve seat 7.Step in one annular is arranged at urceolus 2 bottoms, and 7 of valve seats are in this annular on the step.
The utility model principle is: arch groove on the valve seat 7 and two-way square hole of taking turns on 6 are formed the mud lower flow passage jointly.Two-wayly take turns 6 and under Stepping Motor Control, rotate forward or backwards.The arch groove of valve seat 7 and two-way 6 the square hole position of taking turns be when relative fully, and the runner maximum is the most unimpeded; When arch groove and square hole position interlace fully, the runner minimum.The variation of runner size causes the change of mud flow rate and pressure, thereby produces mud-pulse.After the instrument energising, control circuit is collected the shaft bottom data, and according to different data order is passed to stepper motor.Step motor control is two-way takes turns 6 rotations forward or backwards, two-way square hole and the arch groove on the valve seat 7 of taking turns on 6 produces change in location, the mud runner becomes big or reduces, cause the continuous variation of the flow and the pressure of mud, thereby produce different continuous mud-pulses, and reveal different sine wave phase variations by translation table.
Claims (5)
1. the two-way continuous wave generator of taking turns mainly is made up of downhole generator (1), urceolus (2), centralizer (3), control circuit storehouse (4), motor bin (5), the two-way wheel (6), valve seat (7) etc.; Control circuit storehouse (4), motor bin (5) link to each other successively; Control circuit places in the control circuit storehouse (4), and stepper motor places in the motor bin (5); The stepper motor main shaft links to each other with two-way wheel the (6); Step in one annular is arranged at urceolus (2) bottom, and valve seat (7) seat is in this annular on the step; It is characterized in that: be evenly equipped with square hole on two-way wheel the (6) wall; Valve seat (7) is enclosed within the two-way outside of taking turns, and valve seat (7) is evenly equipped with arch groove; Square hole on two-way wheel the (6) is radially relative with the arch groove position on the valve seat (7).
2. a kind of two-way continuous wave generator of taking turns according to claim 1, it is characterized in that: uniform square hole quantity is four on two-way wheel the (6) wall; The uniform arch groove quantity of valve seat (7) is four.
3. a kind of two-way continuous wave generator of taking turns according to claim 1, it is characterized in that: the square hole height on two-way wheel the (6) is slightly larger than the arch groove height on the valve seat (7).
4. a kind of two-way continuous wave generator of taking turns according to claim 1 is characterized in that: connect downhole generator (1) on the centralizer (3), link to each other with control circuit storehouse (4) down.
5. a kind of two-way continuous wave generator of taking turns according to claim 1 is characterized in that: centralizer (3) external diameter and urceolus (1) internal diameter form matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200029990U CN201627579U (en) | 2010-01-13 | 2010-01-13 | Continuous-wave generator with bidirectional wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200029990U CN201627579U (en) | 2010-01-13 | 2010-01-13 | Continuous-wave generator with bidirectional wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627579U true CN201627579U (en) | 2010-11-10 |
Family
ID=43058973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200029990U Expired - Lifetime CN201627579U (en) | 2010-01-13 | 2010-01-13 | Continuous-wave generator with bidirectional wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627579U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640059A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Continuous wave positive pulse generator driven by linear motor |
| CN111120185A (en) * | 2019-12-02 | 2020-05-08 | 柳江 | Mud pulse generator |
| CN112727380A (en) * | 2019-10-14 | 2021-04-30 | 航天科工惯性技术有限公司 | Sealing centralizer for high-temperature wireless while-drilling system and high-temperature wireless while-drilling system |
-
2010
- 2010-01-13 CN CN2010200029990U patent/CN201627579U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640059A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Continuous wave positive pulse generator driven by linear motor |
| CN112727380A (en) * | 2019-10-14 | 2021-04-30 | 航天科工惯性技术有限公司 | Sealing centralizer for high-temperature wireless while-drilling system and high-temperature wireless while-drilling system |
| CN111120185A (en) * | 2019-12-02 | 2020-05-08 | 柳江 | Mud pulse generator |
| CN111120185B (en) * | 2019-12-02 | 2021-07-30 | 柳江 | Mud pulse generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |
|
| CX01 | Expiry of patent term |