CN211201956U - Wireless inclinometer while drilling seat key type rotary valve pulse generator - Google Patents
Wireless inclinometer while drilling seat key type rotary valve pulse generator Download PDFInfo
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- CN211201956U CN211201956U CN201922205914.2U CN201922205914U CN211201956U CN 211201956 U CN211201956 U CN 211201956U CN 201922205914 U CN201922205914 U CN 201922205914U CN 211201956 U CN211201956 U CN 211201956U
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Abstract
The utility model discloses a wireless inclinometer while drilling seat key type rotary valve pulse generator, which comprises a circulating sleeve, a valve head, a shaft sleeve, a valve seat sleeve, a limiting sleeve, a shoe guide sleeve, an end cap, an outer barrel and a driving nipple; the circulating sleeve, the shoe guide sleeve, the plug and the outer cylinder are sequentially connected to form an axial outline with a hollow structure; the driving short section drives the valve head to rotate, the valve seat is connected with the guide shoe sleeve, the valve head and the valve seat rotate relatively, and slurry passing grooves are formed in the valve head and the valve seat; the circulating sleeve and the guide shoe sleeve are connected through a seat key. The utility model discloses a rotary valve structure and seat key formula are connected, and the energy consumption is little, and the fault rate is low, is afraid of the sand card, is afraid of stifled, anti-disengagement structure mud strong adaptability.
Description
Technical Field
The utility model relates to an oil drilling inclinometer especially relates to a wireless inclinometer part rotary valve impulse generator in pit along with boring.
Background
The pulse generator is an important component of the wireless inclinometer while drilling and is an actuating mechanism of the instrument, so that the performance and the working stability of the pulse generator directly determine the stability of the whole instrument, and according to incomplete statistics, in all faults of the wireless inclinometer while drilling, the fault caused by the pulse generator accounts for 86% of the total faults, so that the importance of the pulse generator is displayed on one hand, and the fault rate of the pulse generator is still high on the other hand, and the stability must be improved and promoted.
At present, pulse generators of wireless inclinometers commonly used in the market all adopt servo valve action. The working principle of pressure difference is that the hydraulic amplification drives the main valve to act synchronously to change the mud flow area, and the working mode is common, but the following problems exist in the use:
1. the servo valve action mechanism requires a pressure compensation mechanism, has various parts, complex structure, strict requirement on oil filling, high requirement on sealing effect and larger requirement on excitation tension, and therefore has short service life and large power consumption;
2. the main valve part is exposed in slurry, the matching requirement among a piston cap, a Y-shaped ring and a wear-resistant sleeve which push a main valve head to act is high, the Y-shaped ring for sealing is frequently invalid, sand blocking frequently occurs at the position of a slurry system with high sand content, so that a pulser cannot normally work, a drilling team must be started to remove faults, the construction period is delayed, the piston cap and the wear-resistant sleeve are seriously eroded by the slurry, and the service life is short;
3. the slurry adaptability of the servo valve pulse generator is poor, and the phenomena of blockage among the screen, the valve sleeve, the piston cap and the wear-resistant sleeve often occur when the slurry viscosity is too high or a plugging material is added.
4. At present, an upper suspension type rotary valve pulse generator exists in the market, faults such as drill clamping, fish falling and the like often occur in the underground due to the structure, and due to the fact that the rotary valve pulse generator is not in a seat key type, instruments cannot be fished out in time, and great loss is caused.
SUMMERY OF THE UTILITY MODEL
Based on above reason, the utility model provides a wireless inclinometer seat key formula rotary valve pulse generator along with boring to solve above-mentioned problem. The generator set has the advantages of simple structure, reasonable layout, low power consumption, long service life, sand blockage resistance, strong slurry adaptability, salvageability and the like.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a wireless inclinometer seat key formula rotary valve pulse generator while drilling which characterized in that: comprises a circulating sleeve, a valve head, a shaft sleeve, a valve seat sleeve, a limiting sleeve, a shoe guide sleeve, a plug, an outer cylinder and a driving short section; the circulating sleeve, the shoe guide sleeve, the plug and the outer cylinder are sequentially connected to form an axial outline with a hollow structure, and other components are arranged in the hollow structure;
the driving short section drives the valve head to rotate, the valve seat is connected with the guide shoe sleeve through the valve seat sleeve, the valve head and the valve seat rotate relatively, and slurry passing grooves are formed in the valve head and the valve seat;
the circulating sleeve and the guide shoe sleeve are connected through a seat key: the circulating sleeve is provided with an orientation key, the guide shoe sleeve is provided with a spiral surface, an orientation key groove and a U-shaped clamping piece, and the orientation key is guided by the spiral surface and clamped in the orientation key groove and the U-shaped clamping piece.
Further, the driving short section comprises a driving motor, a speed reducer, a driving shaft and a fixing sleeve; the driving motor is connected with the speed reducer, the front end of the speed reducer is connected with the driving shaft, the front end of the driving shaft is sleeved with the shaft sleeve, and the valve head is sleeved on the shaft sleeve; the driving motor and the speed reducer are arranged in the fixed sleeve, and the fixed sleeve is filled with oil.
Furthermore, the limiting sleeve is connected to the driving shaft and limits the reciprocating rotation angle of the driving shaft.
Furthermore, the valve heads/valve seats of the slurry passing groove ring are uniformly distributed in the circumferential direction and are formed by petal-shaped tooth blade gaps.
Further, the directional key is provided with a key base, an embedded platform and anti-falling convex falcon; the key base is connected with the circulating sleeve, the embedding platform is embedded into the directional key groove of the shoe guide sleeve, and the anti-falling convex falcon is clamped into the U-shaped clamping piece of the shoe guide sleeve.
Further, the anti-falling convex falcon is provided with a V-shaped end part; the U-shaped card is provided with a V-shaped anti-falling clamping opening, and the V-shaped end part is clamped into the V-shaped anti-falling clamping opening.
Compared with the prior art, the utility model, embodied following advantage:
1. simple structure, the consumption is few, longe-lived: the rotary valve structure is adopted, the speed reducer is driven by the high-efficiency direct current motor, and then the rotary valve is driven to rotate, so that the energy consumption is low; the pulse signal is generated by the mutual rotation of the rotary valve head and the valve seat to change the opening and closing angle, the structure is simple, and the failure rate is low; the valve head and the valve seat are made of erosion-resistant and corrosion-resistant materials, and the service life is long.
2. Sand jam resistance, blockage resistance and strong slurry adaptability: the valve head and the valve seat are designed in a unique structure, the valve head and the valve seat are opened and closed to control the flow area of slurry, the flow passing groove is large, and the influence of the sand content and the viscosity of the slurry is small.
3. The control adaptability of the received signal is strong: can accept the control of serial communication line, or the control of single control line, can be compatible with the product of different editions.
4. The rotary valve structure has small pulse energy impact and can reduce power supply fluctuation.
5. The seat key structure is adopted, so that fishing is easy, and the phenomena of drilling jamming and fish falling in the well are prevented.
6. Adopt anticreep key structure, prevent that the structure from breaking off the key.
7. And the corresponding speed reducer is selected, so that the optimization of torque, rotating speed and power can be realized.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.
FIG. 1 is a general block diagram of a seat-keyed rotary valve pulse generator (used in conjunction with a circulation sleeve);
FIG. 2 is a view of a drive sub;
FIG. 3-1 is a valve head profile view;
FIG. 3-2 is a valve seat profile view;
3-3 are full open views of the valve head and valve seat (mud flow area is largest);
FIGS. 3-4 are fully closed views of the valve head and valve seat (with minimum mud flow area);
FIG. 4 is a view of the connection of the cycling sleeve and the guide shoe sleeve by a seat key;
FIG. 5 is an exploded view of the connection between the loop and the guide shoe;
FIG. 6 is a directional key diagram;
fig. 7 is a U-shaped card drawing.
Detailed Description
The present invention is described in detail with reference to the drawings and examples, but those skilled in the art should understand that the following examples are not the only limitations of the present invention, and all equivalent changes or modifications made in the spirit of the present invention should be considered as falling within the protection scope of the present invention.
Referring to fig. 1, the structure of the seat key type rotary valve pulse generator mainly comprises: the device comprises a circulating sleeve 1, a valve head 2, a shaft sleeve 3, a valve seat 4, a valve seat sleeve 5, a limiting sleeve 6, a guide shoe sleeve 7, a plug 8, an outer cylinder 9 and a driving short section 10.
When viewed from the axial direction, the circulating sleeve 1, the guide shoe sleeve 7, the plug 8 and the outer cylinder 9 are sequentially connected, the circulating sleeve 1 is connected with the guide shoe sleeve 7, the rear end of the guide shoe sleeve 7 is connected with the plug 8, and the rear end of the plug 8 is connected with the outer cylinder 9; the circulating sleeve 1, the guide shoe sleeve 7, the plug 8 and the outer cylinder 9 form the peripheral outline of the pulse generator and become a shaft rod piece with a hollow structure, and other parts are all arranged in the hollow structure.
The power driving is completed by a driving short section 10, and the driving short section 10 is located in a hollow structure and comprises a driving motor 101, a speed reducer 102, a spline 103, a driving shaft 104 and a fixing sleeve 105, as shown in fig. 2. The driving motor 101 is connected with the speed reducer 102, the front end of the speed reducer is connected with the driving shaft 104 through the spline 103, the front end of the driving shaft 104 is sleeved with the shaft sleeve 3, and the valve head 2 is sleeved on the shaft sleeve 3. The driving motor 101 and the speed reducer 102 are installed in a fixed sleeve 105, and the fixed sleeve 105 is filled with oil for lubrication, heat dissipation, pressure compensation and the like.
The valve seat 4 is fixed on the valve seat sleeve 5, and the valve seat sleeve 5 is connected with the guide shoe sleeve 7. The valve head 2 and the valve seat 4 are made of wear-resistant hard alloy and are arranged oppositely and can be opened or closed relatively, and the wear-resistant shaft sleeves 3 are arranged at the valve head 2 and the valve seat 4, so that the erosion of slurry to the driving shaft 104 is reduced. The valve head 2 and the valve seat 4 are both provided with slurry passing grooves 20, as shown in figures 3-1 and 3-2, the slurry passing grooves 20 are uniformly distributed around the circumference of the valve head/valve seat and are formed by gaps of petal-shaped tooth pages. The valve head 2 is driven by a motor to rotate, the valve seat 4 is fixed, when the valve head 2 and the valve seat 4 are opened (the grooves are completely aligned as shown in figures 3-3), the flow area is enlarged, mud can rapidly pass through, and the pressure in a drill rod is smaller; when the valve head 2 is closed against the valve seat 4 (the grooves are completely staggered, as in fig. 3-4), the flow area becomes smaller and the pressure inside the stem rises. The mud pressure signal is sent out by utilizing the principle of a rotary valve (namely, the opening and closing action of the valve head 2 and the valve seat 4). The rotational shear avoids mud plugging relative to axial pull and can provide less driving force.
The limiting sleeve 6 is connected to the driving shaft 104, the driving shaft 104 rotates in a reciprocating mode for 30 degrees, the limiting sleeve 6 limits the driving shaft, and a deep groove ball bearing and a thrust bearing are arranged in the valve seat sleeve 5 and used for supporting and balancing axial force.
The circulating sleeve 1 is connected with the guide shoe sleeve 7, part of the guide shoe sleeve 7 extends into the circulating sleeve 1, the front end of the extended guide shoe sleeve 7 is connected with the valve seat sleeve 5, and the valve seat 4 is sleeved on the valve seat sleeve 5.
As shown in fig. 4 and 5, the circulation cover 1 and the guide shoe cover 7 are connected by a seat key. The circulating sleeve 1 is provided with an oriented key groove 11, and an oriented key 12 is arranged in the oriented key groove 11 and fixed by a jackscrew; the guide shoe sleeve 7 is provided with a spiral surface 13 and a directional key groove 14, and a U-shaped clamping piece 15 is arranged at the rear end of the groove and is also fixed by a jackscrew.
Specifically, the directional key has a structure as shown in fig. 6, and includes a key base 121, a platform 122, and a locking protrusion 123. Key base 121, inlay platform 122 and anti-falling convex falcon 123 three are integrated into one piece, and inlay platform 122 and anti-falling convex falcon 123 are located on key base 121, are higher than key base 121 plane. Key base 121 is adapted to be connected to endless sleeve 1, recessed portion 122 is adapted to receive orientation key 12 into orientation key slot 14 of guide sleeve 7, and anti-slip tenon 123 is adapted to be connected to U-shaped card 15. Further, anti-falling tennons 123 have V-shaped ends for insertion into U-shaped card 15.
Accordingly, U-shaped card 15 is engaged in the oriented key slot 14, and the U-shaped card is configured as shown in fig. 7, and is a card with a card slot having an anti-falling clamping opening 151, which is a V-shaped opening, through which the anti-falling convex tenon 123 is clamped into the card slot of the U-shaped card.
When a user sits on the key, the whole set of instrument string moves downwards, the orientation key 12 on the circulation sleeve is clamped in the orientation key groove 14 and the U-shaped clamping piece 15 groove of the guide shoe sleeve through the spiral surface 13 on the guide shoe sleeve 7, and the circulation sleeve and the guide shoe sleeve are fixed and connected with the anti-drop seat key by means of mutual locking of the orientation key and the U-shaped clamping piece.
Through the seat key type matching, the instrument has no axial movement and no radial rotation. The seat key type connection also realizes the rotary valve type slurry overflowing. The utility model discloses valve head and valve seat design have multiple cooperation, including the area size of overflowing, not unidimensional cooperation, the degree of depth of recess is different, and is removable, can be according to the size of well, and suitable valve head 2 and valve seat 4 are changed to the difference of mud discharge capacity promptly, can increase the application scope to the well drilling like this.
Claims (6)
1. The utility model provides a wireless inclinometer seat key formula rotary valve pulse generator while drilling which characterized in that: comprises a circulating sleeve, a valve head, a shaft sleeve, a valve seat sleeve, a limiting sleeve, a shoe guide sleeve, a plug, an outer cylinder and a driving short section; the circulating sleeve, the shoe guide sleeve, the plug and the outer cylinder are sequentially connected to form an axial outline with a hollow structure, and other components are arranged in the hollow structure;
the driving short section drives the valve head to rotate, the valve seat is connected with the guide shoe sleeve through the valve seat sleeve, the valve head and the valve seat rotate relatively, and slurry passing grooves are formed in the valve head and the valve seat;
the circulating sleeve and the guide shoe sleeve are connected through a seat key: the circulating sleeve is provided with an orientation key, the guide shoe sleeve is provided with a spiral surface, an orientation key groove and a U-shaped clamping piece, and the orientation key is guided by the spiral surface and clamped in the orientation key groove and the U-shaped clamping piece.
2. The wireless inclinometer while drilling, seat-keyed rotary valve pulser of claim 1, wherein: the driving short section comprises a driving motor, a speed reducer, a driving shaft and a fixing sleeve;
the driving motor is connected with the speed reducer, the front end of the speed reducer is connected with the driving shaft, the front end of the driving shaft is sleeved with the shaft sleeve, and the valve head is sleeved on the shaft sleeve;
the driving motor and the speed reducer are arranged in the fixed sleeve, and the fixed sleeve is filled with oil.
3. The wireless inclinometer while drilling, seat-keyed rotary valve pulser of claim 1, wherein: the limiting sleeve is connected to the driving shaft and limits the reciprocating rotation angle of the driving shaft.
4. The wireless inclinometer while drilling, seat-keyed rotary valve pulser of claim 1, wherein: the valve heads/valve seats of the slurry passing groove ring are uniformly distributed in the circumferential direction and are formed by gaps of petal-shaped tooth pages.
5. The wireless inclinometer while drilling, seat-keyed rotary valve pulser of claim 1, wherein: the directional key is provided with a key base, an embedded platform and anti-falling convex falcon; the key base is connected with the circulating sleeve, the embedding platform is embedded into the directional key groove of the shoe guide sleeve, and the anti-falling convex falcon is clamped into the U-shaped clamping piece of the shoe guide sleeve.
6. The wireless inclinometer while drilling, seat-keyed rotary valve pulser of claim 5, wherein: the anti-falling convex falcon is provided with a V-shaped end part; the U-shaped card is provided with a V-shaped anti-falling clamping opening, and the V-shaped end part is clamped into the V-shaped anti-falling clamping opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205914.2U CN211201956U (en) | 2019-12-11 | 2019-12-11 | Wireless inclinometer while drilling seat key type rotary valve pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205914.2U CN211201956U (en) | 2019-12-11 | 2019-12-11 | Wireless inclinometer while drilling seat key type rotary valve pulse generator |
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| Publication Number | Publication Date |
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| CN211201956U true CN211201956U (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922205914.2U Active CN211201956U (en) | 2019-12-11 | 2019-12-11 | Wireless inclinometer while drilling seat key type rotary valve pulse generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658154A (en) * | 2023-08-01 | 2023-08-29 | 河北赛维石油设备有限公司 | Driving nipple for wireless inclinometer while drilling |
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2019
- 2019-12-11 CN CN201922205914.2U patent/CN211201956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658154A (en) * | 2023-08-01 | 2023-08-29 | 河北赛维石油设备有限公司 | Driving nipple for wireless inclinometer while drilling |
| CN116658154B (en) * | 2023-08-01 | 2023-09-22 | 河北赛维石油设备有限公司 | Driving nipple for wireless inclinometer while drilling |
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