CN209586360U - Absorbing is pressurized coupler - Google Patents
Absorbing is pressurized coupler Download PDFInfo
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- CN209586360U CN209586360U CN201920087920.XU CN201920087920U CN209586360U CN 209586360 U CN209586360 U CN 209586360U CN 201920087920 U CN201920087920 U CN 201920087920U CN 209586360 U CN209586360 U CN 209586360U
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- central axis
- outer housing
- coupler
- valve base
- pressurized
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Abstract
The utility model relates to the absorbings of one of downhole well tool field to be pressurized coupler, mainly be made of top connection, central axis, outer housing, sealing device, spline pair, centre bore, spring, upper valve base, pressure transmission hole, lower valve base, lower contact.Absorbing pressurization coupler is mounted on single curved power drilling tool and with boring among measurement and control instrument, single curved power drilling tool vibration can be protected to precision with the damage for boring measurement and control instrument, height when again can be by single curved power drilling tool rotation brake is hydraulic to be converted into pulsatile impact power, and it is applied on drill bit, auxiliary improves efficiency of breaking rock, be a kind of structure be simple and convenient to operate, be low in cost, safe and reliable new tool.
Description
Technical field
The utility model relates to oil and gas well drilling, CBM Drilling, geological prospecting, mine drilling rig field one
Kind drilling well downhole tool, especially a kind of absorbing are pressurized coupler.
Background technique
In the fields such as oil and gas well drilling, geological prospecting, mine probing, single curved power drilling tool, accurate wireless drilling
Measurement and control instrument is that the most common downhole tool of complex structural well drilling well both at home and abroad, the output end of single curved power drilling tool connect brill at present
Head drives bit broken rock under drilling fluid effect, and input terminal then connects wireless drilling measurement and control instrument.In drilling process,
Due to the influence for the factors such as rock stratum heterogeneity, the borehole wall be irregular, single curved power drilling tool can be generated when driving bit broken rock
Violent vibration not only influences the stability of accurate wireless drilling measurement and control instrument, or even damage internal component can not be repaired, and
And single curved power drilling tool rotation brake is also resulted in, cause ground pump pressure sharply to increase, cause to suppress pump, seriously affects drilling well effect
Rate.Data at home and abroad investigation and analysis shows the spudder for " drill bit+mono- curved power drilling tool+wireless drilling measurement and control instrument "
Skill has not seen the related tool equipment for solving the above problems at present.
Utility model content
The purpose of this utility model is the vibration in order to reduce single curved power drilling tool to greatest extent, protection it is accurate wirelessly with
Bore measurement and control instrument, avoid when single curved power drilling tool rotation brake it is high it is hydraulic caused by suppress pump, while can also be converted into height is hydraulic
The pulsatile impact power being applied on drill bit, auxiliary improve drill bit efficiency of breaking rock, further increase wellbore construction operating efficiency, reduce
Cost improves hole quality, improves downhole safety, provides one for oil and gas well drilling, geological prospecting, mine drilling field
Kind absorbing is pressurized coupler.
The technical solution of the utility model is:
A kind of absorbing pressurization coupler, including central axis, outer housing, in which: the central axis is axially arranged with centre bore, In
Central axis outer wall is axially spaced to be equipped with spline pair and lower convex platform, and central axis bottom is equipped with one section of pressure transmission hole upwards, and pressure transmission hole prolongs
Extend to the upper surface of lower convex platform；The outer housing is sleeved on outside the central axis below top connection, outer housing upper end with above connect
Head bottom keeps certain intervals, and outer housing inner wall is axially spaced to be equipped with spline and upper valve base, lower valve base, spline and center
Spline pair on axis constitutes axial sliding fit, and the lower convex platform upper surface composition blocking of upper valve base lower end surface and central axis cooperates,
Pocketed springs B in annular space between lower valve base and central axis outer lug boss；The central axis slides axially close with outer housing composition
Envelope cooperation.
Above scheme further comprises:
One or several convex platforms are additionally provided on outer wall between central axis lower convex platform and spline pair, it is corresponding outer
One or several inner convex platforms also are provided in inner walls, below the convex platform of central axis between outer housing inner convex platform in annular space
It is set with spring.
The pressure transmission hole of the central axis lower convex platform is to be inclined upward to upper surface.
The inlet of the pressure transmission hole is installed by filter device.
Top connection is connected in the upper end of central axis, and top connection bottom and outer housing upper end keep certain intervals, outside
Shell lower end is equipped with lower contact.
The central axis and outer housing are the sealing cooperations that slid axially by sealing device composition.
The sealing device includes installing sealing device A between centrally disposed axis and outer housing top and being arranged in upper valve
Sealing device C, sealing device D between seat, lower valve base and central axis.
Lubricating oil is full of in the annular space where spline pair and spring.
The absorbing pressurization coupler of the utility model can protect single curved power drilling tool to vibrate to wireless drilling measurement and control instrument
Damage, and height when can buffer single curved power drilling tool rotation brake is hydraulic, avoids the generation for suppressing pump termination of pumping, while also to meet
The technical requirements and equipment requirement of existing drilling technology, and of simple structure and low cost, operation and maintenance is conveniently.
Detailed description of the invention
Fig. 1 is the absorbing pressurization coupler structure cross-sectional view of the utility model.
In figure: 1- top connection, 2- central axis, 3- outer housing, 4- sealing device A, 5- spline pair, 6- centre bore, 7- sealing
Device B, 8- spring A, 9- sealing device C, 10- upper valve base, 11- pressure transmission hole, 12- spring B, 13- sealing device D, 14- lower valve
Seat, 15- lower contact.
Specific embodiment
It is described in detail the utility model with reference to the accompanying drawing.
Embodiment 1, referring to attached drawing 1, a kind of absorbing pressurization coupler, including central axis 2, outer housing 3, in which: in described
Mandrel 2 is axially arranged with center, 6, be equipped with spline pair 5 and lower convex platform 2 outer wall of central axis is axially spaced, 2 bottom of central axis to
It is equipped with one section of pressure transmission hole 11, pressure transmission hole 11 extends to the upper surface of lower convex platform；The outer housing 3 is sleeved on 1 lower section of top connection
Central axis 2 outside, 3 upper end of outer housing and 1 bottom of top connection keep certain intervals, and 3 inner wall of outer housing is axially spaced to be set
There are spline and upper valve base 10, lower valve base 14, the spline pair 5 on spline and central axis 2 constitutes axial sliding fit, upper valve base
10 lower end surfaces and the lower convex platform upper surface of central axis 2, which are constituted, stops cooperation, the ring between 2 outer lug boss of lower valve base 14 and central axis
Pocketed springs B12 in sky；The central axis 2 slides axially with the composition of outer housing 3 and seals cooperation.
Single spring and valve seat combination structure can be used in above-described embodiment 1, compatibly the lesser geological stratification of lower vibration.
Embodiment 2 is additionally provided with one on the outer wall between 2 lower convex platform of central axis and spline pair 5 on the basis of embodiment 1
A or several convex platforms also are provided with one or several inner convex platforms on corresponding 3 inner wall of outer housing, in the convex of central axis 2
Spring is set in annular space between 3 inner convex platform of outer housing below platform.What is provided in Fig. 1 is dual spring vibration absorbing structure.
The pressure transmission hole 11 of 2 lower convex platform of central axis is to be inclined upward to upper surface.
The inlet of the pressure transmission hole 11 is installed by filter device, preferably filter screen or strainer valve.
Top connection 1 is connected in the upper end of central axis 2, and 1 bottom of top connection and 3 upper end of outer housing keep certain intervals,
Gap length meets spring maximal dilation variable, is equipped with lower contact 15 in 3 lower end of outer housing.
The central axis 2 is the sealing cooperation that slid axially by sealing device composition with outer housing 3.
The sealing device includes installing sealing device A4, B7 between 3 top of centrally disposed axis 2 and outer housing and setting
Set sealing device C9, the sealing device D13 between upper valve base 10, lower valve base 14 and central axis 2.
Lubricating oil is full of in the annular space where spline pair 5 and spring.
Exemplary embodiments 3, referring to attached drawing 1, absorbing is pressurized coupler mainly by top connection 1, central axis 2, outer housing 3, close
Seal apparatus A4, spline pair 5, centre bore 6, spring 8, upper valve base 10, pressure transmission hole 11, lower valve base 14, lower contact 15 form.Top connection
1 is connected to the upper end of central axis 2, and 3 lower end of outer housing processes lower contact 15.2 inside machining center hole 6 of central axis, central axis 2 with
Sealing device A4 and sealing device B7 is installed between outer housing 3.2 top of central axis is equipped with spline pair 5, and spline pair 5 is located at sealing
Between device A4 and sealing device B7, central axis 2 is penetrated in outer housing 3, and passes through spline pair 5 and 3 inner spline groove structure of outer housing
At axial sliding fit.
Central axis 2 is equipped with convex platform and lower convex platform, and 3 inner hole of outer housing is equipped with the upper valve base 10 and lower valve base of two boss structures
14, upper valve base 10 installs spring A8, lower valve base 14 above 2 lower convex platform of central axis between 2 convex platform of upper valve base 10 and central axis
Spring B 12 is installed between 2 lower convex platform of central axis.2 inner wall of central axis is equipped with pressure transmission hole 11, and pressure transmission hole 11 is through-hole, connection
14 bottom of 10 bottom of upper valve base and lower valve base, pressure transmission hole 11 is open at one end in 2 bottom of central axis, open at one end in upper valve base 10
Between 2 lower convex platform of central axis.The pressure transmission hole 11 of 10 bottom of upper valve base be it is inclined, be discharged convenient for landwaste, pressure transmission hole 11 enters
Filter device is installed at mouthful.
Sealing device A4 and sealing device 7 be installed between central axis 2 and outer housing 3, spline pair 5 be located at sealing device A4 with
Between sealing device B7；Sealing device C9 is equipped between 2 convex platform of upper valve base 10 and central axis, under lower valve base 14 and central axis 2
Sealing device D13, the preferred sealing ring of sealing device or sealing ring are equipped between boss.Sealing device A4 and sealing device B7 it
Between space in be full of lubricating oil；Space is full of lubricating oil between 2 convex platform of upper valve base 10 and central axis.
Upper valve base 10, the mountable multiple groups of lower valve base 14 (being equal to the inner convex platform in technical solution), forced area can phase
Together can also be different, also mountable multiple groups, restoring force may be the same or different for spring A8, spring B 12.
In complex structural well drilling process, absorbing pressurization coupler is mounted on single curved power drilling tool and wireless drilling observing and controlling
Among instrument, top connection 1 is connect with wireless drilling measurement and control instrument, and lower contact 15 is connect with single curved power drilling tool, drilling fluid into
After entering absorbing pressurization coupler, enter single curved power drilling tool by the centre bore 6 inside central axis 2, so that single curved power drilling tool
Output end start to rotate, and then drive bit broken rock.Bit pressure is by central axis 2 by between upper valve base 10 and central axis 2
Spring A8, the spring B 12 between lower valve base 14 and central axis 2 is transferred on outer housing 3, and then passes through single curved power drilling tool
It is handed to drill bit, therefore under the action of bit pressure, two groups of springs are in compressive state.The torque that ground driving equipment generates passes through
Drill string is transferred to the central axis 2 of absorbing pressurization coupler, is then transferred to through the spline pair 5 between central axis 2 and outer housing 3 outer
Shell, and then it is transferred to single curved power drilling tool and drill bit.
When high vibration occurs for single curved power drilling tool and drill bit, vibrational energy is passed up to absorbing pressurization coupler
Outer housing 3, since the central axis 2 of absorbing pressurization coupler is connect with wireless drilling measurement and control instrument, outer housing 3 and single curved power drill
Tool connection, and spring is installed, therefore vibrational energy is absorbed by spring and buffered between outer housing 3 and central axis 2, to protect nothing
Line avoids the damage being vibrated with measurement and control instrument is bored.
When single curved power drilling tool output torque is insufficient, when drill bit cannot rotate broken rock, drill bit moment stops operating, i.e.,
Single curved power drilling tool moment braking, drilling tool internal hydraulic pressure power sharply increases at this time, and high hydraulic coupling is upwardly into absorbing pressurization coupling
After device, 14 bottom of lower valve base is acted on, pushes the outer housing 3 of absorbing pressurization coupler to move up relative to central axis 2, and press
Spring B 12 between contracting central axis 2 and lower valve base 14, at the same time, high hydraulic coupling enter upper valve base 10 by pressure transmission hole 11
Bottom also pushes the outer housing 3 of absorbing pressurization coupler to move up relative to central axis 2, and center of compression axis 2 and upper valve base
Spring B 12 between 10.According to mechanics principle it is found that hydraulic coupling is constant, the forced area expansion of outer housing 3 is twice, then shell
The hydraulic thrust increasing that body 3 is subject to is twice, and outer housing 3 moves up rapidly relative to central axis 2 at this time, since absorbing is pressurized coupler
Outer housing 3 connect by lower contact 15 with single curved power drilling tool, therefore when outer housing 3 moves up, singly curved power drilling tool also with
It moves up, and then drill bit is driven to move up, this cutting tooth for allowing for drill bit is detached from bottom rock.When drill bit moment being detached from shaft bottom,
The reaction torque pop-off of braking single curved power drilling tool and drill bit, single curved power drilling tool and drill bit restart to rotate broken rock, bore
Hydraulic coupling reduces in having, so that acting on the thrust of 14 bottom of outer housing 3, upper valve base 10 and lower valve base of absorbing pressurization coupler
It reduces, under the action of spring-return power, the outer housing 3 of absorbing pressurization coupler is moved down with respect to central axis 2, and then is pushed
Single curved power drilling tool and drill bit move down, and so that drill bit is contacted bottom rock again and carry out broken rock, and absorbing is pressurized coupler
Outer housing 3 rapidly move down when generate impact force, be ultimately applied on drill bit, above process repetitive cycling, be achieved that by
The braking energy of single curved power drilling tool is converted into the function for the pulsatile impact power being applied on drill bit, to further improve brill
The efficiency of breaking rock of head.Compared with prior art, the beneficial effects of the utility model through live downhole testing the result shows that, utilize suction
Vibration pressurization coupler can make the drilling efficiency of complex structural well averagely improve 83.6%-107.6%, it is hard especially in more than
When creeping into rock stratum, speed-increasing effect is more significant, and drilling quality meets design standard, has reached existing weaponry and equipment at home and work
In skill technical foundation, low cost, high efficiency complete the purpose of complex structural well wellbore construction, and absorbing is pressurized coupler main feature
It is that and protects accurate wireless drilling measurement and control instrument, it is therefore prevented that vibration damage is greatly reduced and pulled out of hole more because of instrument damage
The frequency changed substantially reduces the non-drilling production time, while converting the arteries and veins on drill bit for single curved power drilling tool braking energy
Dynamic impact force, further improves the efficiency of breaking rock of drill bit, turns harm into good, and absorbing pressurization coupler is succeeded in developing, for mentioning
High China's complex structural well drilling technology level and competitiveness in the international market, provide strong technical support.
Claims (8)
1. absorbing is pressurized coupler, including central axis (2), outer housing (3), it is characterised in that: the central axis (2) is axially arranged with
Centre bore (6), axially spaced equipped with spline pair (5) and lower convex platform in central axis (2) outer wall, central axis (2) bottom is set upwards
There is one section of pressure transmission hole (11), pressure transmission hole (11) extends to the upper surface of lower convex platform；The outer housing (3) is sleeved on top connection (1)
The central axis (2) of lower section is external, and outer housing (3) upper end and top connection (1) bottom keep certain intervals, outer housing (3) inner wall
It is axially spaced to be equipped with spline and upper valve base (10), lower valve base (14), spline pair (5) structure on spline and central axis (2)
At axial sliding fit, the lower convex platform upper surface of upper valve base (10) lower end surface and central axis (2), which is constituted, stops cooperation, in lower valve base
(14) pocketed springs B (12) in the annular space between central axis (2) outer lug boss；The central axis (2) and outer housing (3) constitute axis
Cooperate to being slidingly sealed.
2. absorbing according to claim 1 is pressurized coupler, it is characterized in that: in central axis (2) lower convex platform and spline pair (5)
Between outer wall on be additionally provided with one or several convex platforms, also be provided on corresponding outer housing (3) inner wall one or several
Inner convex platform is set with spring in annular space between outer housing (3) inner convex platform below the convex platform of central axis (2).
3. absorbing according to claim 1 or 2 is pressurized coupler, it is characterized in that: the pressure transmission of the central axis (2) lower convex platform
Hole (11) is to be inclined upward to upper surface.
4. absorbing according to claim 3 is pressurized coupler, it is characterized in that: the inlet of the pressure transmission hole (11) was installed
Filter device.
5. absorbing according to claim 1 or 2 is pressurized coupler, it is characterized in that: further including top connection (1) and lower contact
(15), top connection (1) is connected to the upper end of central axis (2), and top connection (1) bottom and outer housing (3) upper end keep certain
Interval, outer housing (3) lower end are equipped with lower contact (15).
6. absorbing according to claim 1 or 2 is pressurized coupler, it is characterized in that: the central axis (2) and outer housing (3)
It is the sealing cooperation that slid axially by sealing device composition.
7. absorbing according to claim 6 is pressurized coupler, it is characterized in that: the sealing device includes centrally disposed axis
(2) sealing device A (4) are installed between outer housing (3) top and are arranged in upper valve base (10), lower valve base (14) and central axis
(2) sealing device C (9), sealing device D (13) between.
8. absorbing according to claim 7 is pressurized coupler, it is characterized in that: in the annular space where spline pair (5) and spring
It is interior to be full of lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920087920.XU CN209586360U (en) | 2019-01-20 | 2019-01-20 | Absorbing is pressurized coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920087920.XU CN209586360U (en) | 2019-01-20 | 2019-01-20 | Absorbing is pressurized coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209586360U true CN209586360U (en) | 2019-11-05 |
Family
ID=68352320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920087920.XU Active CN209586360U (en) | 2019-01-20 | 2019-01-20 | Absorbing is pressurized coupler |
Country Status (1)
| Country | Link |
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| CN (1) | CN209586360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456717A (en) * | 2019-01-20 | 2020-07-28 | 中石化石油工程技术服务有限公司 | Vibration absorption and pressurization coupler |
| CN112901062A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Automatic torque adjusting device for drill bit |
-
2019
- 2019-01-20 CN CN201920087920.XU patent/CN209586360U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456717A (en) * | 2019-01-20 | 2020-07-28 | 中石化石油工程技术服务有限公司 | Vibration absorption and pressurization coupler |
| CN111456717B (en) * | 2019-01-20 | 2024-06-25 | 中石化石油工程技术服务有限公司 | Shock-absorbing booster coupler |
| CN112901062A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Automatic torque adjusting device for drill bit |
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