CN215108813U - Sand-proof and anti-drop mud pulse large piston - Google Patents
Sand-proof and anti-drop mud pulse large piston Download PDFInfo
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- CN215108813U CN215108813U CN202120148948.7U CN202120148948U CN215108813U CN 215108813 U CN215108813 U CN 215108813U CN 202120148948 U CN202120148948 U CN 202120148948U CN 215108813 U CN215108813 U CN 215108813U
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- valve rod
- sand
- threaded connection
- mud pulse
- spring
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Abstract
The utility model discloses a big piston of sand control anticreep mud pulse, include: the valve barrel is internally provided with a spring, and one end of the valve barrel is in threaded connection with one end of the inclined guide; the signal valve rod is arranged in the leading slope, one end, close to the spring, of the signal valve rod in the leading slope is in threaded connection with the piston cap, a flow limiting ring is further arranged at the end of the signal valve rod, and a sealing ring is arranged on the piston cap; and the sieve cylinder is internally provided with a valve core assembly, one end of the sieve cylinder is connected with the outer cylinder, and the outer cylinder is in threaded connection with the other end of the valve cylinder. The screen drum is used for filtering and blocking long-velvet substances to prevent the winding of internal parts, the resilience force of the spring can provide pulse resilience kinetic energy, and the piston cap can realize reciprocating pulsation activity in the lead-in slope. The winding of the internal part is prevented, silt is convenient to clean and discharge, the pulser is prevented from being locked by the silt, the key-off condition can be avoided, and the normal work of the instrument is ensured.
Description
Technical Field
The utility model relates to a drilling engineering technical field in oil, colliery and geological exploration specifically is a big piston of sand control anticreep mud pulse.
Background
In recent years, along with the continuous deepening of oil exploration and development, stratum structure is more and more complicated, special complicated wells such as deep well, high temperature, high pressure, orientation, horizontal well are more and more, mud often has the big condition of silt in the drilling process, the wireless inclinometer of following drilling that uses can receive the secondary influence, the card dies easily, the motionless phenomenon appears, lead to the unable transmission of inclinometer signal, simultaneously in big well slope oriented well or horizontal well, the pulser receives the mud influence and easily causes the key condition that takes off, lead to the unable normal work of instrument, no matter be silt card dies pulser or takes off the key condition, all need solve through salvaging the instrument or carrying the brill, thereby the speed of well drilling has seriously been influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a big piston of sand control anticreep mud pulse, prevent the winding of internal part, make things convenient for silt clearance and discharge, avoid the dead pulser of silt card, can avoid the emergence of the key condition of taking off, guarantee the normal work of instrument, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sand control anticreep mud pulse big piston includes:
the valve barrel is internally provided with a spring, and one end of the valve barrel is in threaded connection with one end of the inclined guide;
the signal valve rod is arranged in the leading slope, one end, close to the spring, of the signal valve rod in the leading slope is in threaded connection with the piston cap, a flow limiting ring is further arranged at the end of the signal valve rod, and a sealing ring is arranged on the piston cap;
and the sieve cylinder is internally provided with a valve core assembly, one end of the sieve cylinder is connected with the outer cylinder, and the outer cylinder is in threaded connection with the other end of the valve cylinder.
Use a sieve section of thick bamboo to filter the long fine hair material of separation to prevent the winding of internal component, the resilience force of using the spring can provide pulse resilience kinetic energy, and the piston cap can realize leading the interior reciprocal pulsation activity of inclining, and the sealing washer is used for improving the outer sealed effect of piston cap, and the restriction ring can carry out the current limiting effect, avoids the too high damage erosion internal component of mud velocity of flow.
Further, the sealing ring comprises a star-shaped sealing ring and an O-shaped sealing ring. A star-shaped sealing ring and an O-shaped sealing ring are arranged outside the piston cap, so that the sealing effect of the O-shaped ring in the middle is increased while silt is removed.
Furthermore, the inner wall of the oblique guide is provided with at least eight spiral guide grooves, the periphery of the oblique guide ring is provided with a slurry overflowing hole, and the outer side of the signal valve rod is also provided with spiral guide grooves corresponding to the oblique guide inner wall. The spiral diversion trenches uniformly distributed on the signal valve rod and the inclined guide shaft facilitate the cleaning and discharging of silt, and the pulser is prevented from being stuck by the silt.
Furthermore, the sieve drum is provided with sieve grooves which are spiral grooves. The spiral groove on the screen cylinder at the slurry inlet can prevent the entry of long-staple substances and prevent the winding of internal components.
Further, still include wedge jump ring and set screw, lead the oblique one end outside of keeping away from the piston cap and install the wedge jump ring through set screw. A wedge-shaped clamp spring is designed on the oblique guide, a positioning key is arranged in the circulating sleeve, the mud pulser generator is inserted into the circulating sleeve from the upper end, the instrument is fixed in the circulating sleeve through the acting force of the wedge-shaped clamp spring and the positioning key, the key-off condition is avoided, and the normal work of the instrument is guaranteed.
Compared with the prior art, the beneficial effects of the utility model are that: this big piston of sand control anticreep mud pulse has following benefit:
1. through the helicla flute on the mud entrance sieve section of thick bamboo, the entering of separation long fine hair material, in order to prevent the winding of internals, the spiral guiding gutter of signal valve rod and the epaxial equipartition of slant of drawing, make things convenient for silt clearance and discharge, avoid the dead pulser of silt card, star type sealing washer and O type sealing washer are installed outward to the piston cap, increase the sealed effect of O type circle in the centre when driving silt, draw and design wedge jump ring to one side, effort through spring leaf and navigation key makes the instrument fix in the circulation cover, avoid the emergence of the key condition of taking off, guarantee the normal work of instrument.
2. The drilling fluid has the advantages of simple process, low cost, easy replacement of internal parts, simple structure, reasonable design, wide popularization in a drilling site and wide application range.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of the valve core assembly, the screen cylinder and the outer cylinder of the present invention;
fig. 4 is the structure schematic diagram of the oblique-guiding, wedge-shaped clamp spring and the fixing screw of the utility model.
In the figure: 1 signal valve rod, 2 lead to the slope, 3 sealing washers, 4 restrictor rings, 5 piston caps, 6 valve barrels, 7 springs, 8 case subassemblies, 9 sieve barrels, 10 outer barrels, 11 wedge-shaped snap springs and 12 fixing screws.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a sand control anticreep mud pulse big piston includes:
the valve cylinder 6 is internally provided with a spring 7, and one end of the valve cylinder 6 is in threaded connection with one end of the lead-in bevel 2;
the signal valve rod 1 is arranged inside the leading incline 2, one end, close to the spring 7, of the signal valve rod 1, which is positioned inside the leading incline 2, is in threaded connection with the piston cap 5, the end of the signal valve rod 1 is also provided with a flow limiting ring 4, and the piston cap 5 is provided with a sealing ring 3;
and the screen cylinder 9 is internally provided with a valve core assembly 8, one end of the screen cylinder 9 is connected with the outer cylinder 10, and the outer cylinder 10 is in threaded connection with the other end of the valve cylinder 6.
Use a sieve section of thick bamboo to filter the long fine hair material of separation to prevent the winding of internal component, the resilience force that uses spring 7 can provide pulse resilience kinetic energy, and piston cap 5 can realize leading the reciprocal pulsation activity in oblique 2, and sealing washer 3 is used for improving the outer sealed effect of piston cap 5, and the restriction ring 4 can carry out the current limiting effect, avoids the too high damage erosion internal component of mud velocity of flow.
The sealing ring 3 comprises a star-shaped sealing ring and an O-shaped sealing ring. A star-shaped sealing ring and an O-shaped sealing ring are arranged outside the piston cap, so that the sealing effect of the O-shaped ring in the middle is increased while silt is removed.
Through the star type sealing washer of installing on the piston cap, remove the silt on the piston cap, add the O type sealing washer in the middle of simultaneously and play sealed effect, drive reciprocating of signal valve rod 1, realize mud pulse signal's production.
The inner wall of the leading bevel 2 is provided with at least eight spiral diversion trenches, the periphery of the leading bevel 2 is provided with a slurry overflowing hole, and the outer side of the signal valve rod 1 is also provided with spiral diversion trenches corresponding to the inner wall of the leading bevel 2. The pressure is too high, so that the mud flows out from the mud overflowing hole to realize pressure reduction treatment.
The spiral diversion trenches uniformly distributed on the signal valve rod and the inclined guide shaft facilitate the cleaning and discharging of silt, and the pulser is prevented from being stuck by the silt.
After silt gets into inside, can be extruded to the spiral guiding gutter in, when mud liquid flows simultaneously, because the existence of spiral guiding gutter forms the rotating, washs the sedimentary silt in the spiral guiding gutter, realizes cleaing away the effect of silt.
The method can effectively prevent silt from entering, and avoids the phenomena that the signal valve rod 1, the lead-in slope 2, the valve core assembly 8 and the like are blocked and do not move.
The screen drum 9 is provided with spiral grooves.
The spiral groove of the screen cylinder 9 prevents the plugging agent long velvet material from entering, and after the plugging agent long velvet material is wound, the plugging agent long velvet material is easy to fall off under the scouring of slurry due to spiral design, and the plugging agent long velvet material is cut off due to the rotary guide scouring of the slurry, so that the phenomena that large particle impurities enter a large piston to cause large piston sand blocking and the like can be avoided.
The piston is characterized by further comprising a wedge-shaped clamp spring 11 and a fixing screw 12, wherein the wedge-shaped clamp spring 11 is installed on the outer side of one end, far away from the piston cap 5, of the lead-in incline 2 through the fixing screw 12. The wedge-shaped clamp spring is designed on the leading incline, the positioning key is arranged in the circulating sleeve, the mud pulser generator is inserted into the circulating sleeve from the upper end, the instrument is fixed in the circulating sleeve through the acting force of the wedge-shaped clamp spring and the positioning key, the key-off condition is avoided, the normal work of the instrument is ensured, and the end face of the leading incline 2, which is contacted with the circulating sleeve, is a plane.
The wedge-shaped clamp spring 11 is made of elastic metal materials, the opening width of the wedge-shaped clamp spring 11 is smaller than that of the positioning key, the wedge-shaped clamp spring 11 is opened in a one-way mode, when the lead-in angle 2 enters the circulating sleeve, the wedge-shaped clamp spring 11 is clamped on the positioning key, and therefore the whole set of instrument is prevented from falling off naturally.
When slurry reacts to the upward force of the slurry pulse generator, the slurry pulse generator moves upwards, and the positioning key in the circulating sleeve generates downward resistance on the wedge-shaped clamp spring 11, so that the slurry pulse generator is prevented from being separated from the circulating sleeve.
The device is used as a key part of a wireless while-drilling instrument in petroleum drilling, the sand prevention and anti-falling function provides safety guarantee for the use of the whole instrument, and the economic loss of a drilling team is reduced.
It is to be noted that the parts not described in detail in this embodiment are all conventional technologies known to those skilled in the art, and will not be described again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The sand-prevention and anti-drop mud pulse large piston is characterized in that: the method comprises the following steps:
the valve cylinder (6) is internally provided with a spring (7), and one end of the valve cylinder (6) is in threaded connection with one end of the leading bevel (2);
the signal valve rod (1) is arranged inside the leading incline (2), one end, close to the spring (7), of the signal valve rod (1) in the leading incline (2) is in threaded connection with the piston cap (5), the end of the signal valve rod (1) is also provided with the flow limiting ring (4), and the piston cap (5) is provided with the sealing ring (3);
the sieve drum (9) is internally provided with a valve core assembly (8), one end of the sieve drum (9) is connected with the outer drum (10), and the outer drum (10) is in threaded connection with the other end of the valve drum (6).
2. The sand-control and anti-drop mud pulse large piston according to claim 1, characterized in that: the sealing ring (3) comprises a star-shaped sealing ring and an O-shaped sealing ring.
3. The sand-control and anti-drop mud pulse large piston according to claim 1, characterized in that: the inner wall of the leading incline (2) is provided with at least eight spiral guide grooves, the periphery of the leading incline (2) is provided with a slurry overflowing hole, and the outer side of the signal valve rod (1) is also provided with spiral guide grooves corresponding to the inner wall of the leading incline (2).
4. The sand-control and anti-drop mud pulse large piston according to claim 1, characterized in that: the sieve drum (9) is provided with sieve grooves which are spiral grooves.
5. The sand-control and anti-drop mud pulse large piston according to claim 1 or 3, characterized in that: still include wedge jump ring (11) and set screw (12), draw oblique (2) and keep away from the one end outside of piston cap (5) and install wedge jump ring (11) through set screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120148948.7U CN215108813U (en) | 2021-01-20 | 2021-01-20 | Sand-proof and anti-drop mud pulse large piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120148948.7U CN215108813U (en) | 2021-01-20 | 2021-01-20 | Sand-proof and anti-drop mud pulse large piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215108813U true CN215108813U (en) | 2021-12-10 |
Family
ID=79324679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120148948.7U Expired - Fee Related CN215108813U (en) | 2021-01-20 | 2021-01-20 | Sand-proof and anti-drop mud pulse large piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215108813U (en) |
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2021
- 2021-01-20 CN CN202120148948.7U patent/CN215108813U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220818 Address after: 100070, No. 39, No. 12, No. 188, South Fourth Ring Road, Beijing, Fengtai District Patentee after: BEIJING LIUHE GREATNESS TECHNOLOGY Co.,Ltd. Address before: Room 2404, block B, Haiyi international, Fengcheng 5th Road, economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee before: Xi'an Tianke mingchuang Petroleum Technology Service Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 Termination date: 20220120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |