CN106499340B - A kind of fluid power pulse generating unit and its operating method - Google Patents
A kind of fluid power pulse generating unit and its operating method Download PDFInfo
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- CN106499340B CN106499340B CN201610981559.6A CN201610981559A CN106499340B CN 106499340 B CN106499340 B CN 106499340B CN 201610981559 A CN201610981559 A CN 201610981559A CN 106499340 B CN106499340 B CN 106499340B
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- pipe nipple
- shape pipe
- slot
- wiper block
- playing
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- 239000012530 fluid Substances 0.000 title claims abstract description 57
- 238000011017 operating method Methods 0.000 title claims description 9
- 210000002445 nipple Anatomy 0.000 claims abstract description 124
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000005553 drilling Methods 0.000 claims description 27
- 239000011435 rock Substances 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 230000035515 penetration Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of fluid power pulse generating units, mainly it is made of shell, throttling pipe nipple, bullet shape pipe nipple, wiper block, gasket, spring, spring cup, transmission shaft, turbine stator, turbine rotor, pull rod, support plate, support cap, thrust bearing, it is characterised in that:The throttling pipe nipple is threadingly attached to shell lower end, the pipe nipple that throttles forms fluid power impulse generating unit with shape pipe nipple is played, wiper block is installed in the T-slot for playing shape pipe nipple, it plays the upper and lower ends equipped with gasket, wiper block in the T-slot of shape pipe nipple and is mounted on spring, for spring cup for preventing the spring above wiper block to be detached from, the periphery of transmission shaft lower end is equipped with a closed skewed slot;The turbine stator forms power unit with turbine rotor, and turbine stator is fixed respectively with turbine rotor on shell and transmission shaft;The pull rod, support plate, support cap and thrust bearing collectively constitute support unit.Apparatus of the present invention are simple in structure, easy to operate, and frequency of impact is easily adjusted.
Description
Technical field
The present invention relates to a kind of fluid power pulse generating unit and its operating methods, belong to the brill of oil and gas exploitation industry
Well field of engineering technology.
Background technology
Petroleum resources in stratum are to be formed wellbore based on certain drilling technique in the earth formation by well system by opened
What extraction came, which includes ground system and underground equipment etc..Wherein drill string is one of most important underground equipment, it both made
To transmit the bridge of well head power, and the barrier of the inside and outside annular space drilling fluid of isolation.With petroleum resources exploitation it is continuous into
Row, drillng operation are constantly shifted to deep formation, and the quantity of deep & ultra-deep well incrementally increases.According to the distribution of China's petroleum resources
Feature has 52% to bury in deep formation, the petroleum resources in west area in the natural gas in the sweet peaceful two big basin in Sichuan and Shan
This ratio reaches 73%.At the same time, the oil and gas development in China is also gradually strided forward to deep-sea.
Under normal conditions, with the increase of well depth, rock strength increases and drillability is deteriorated, and it is relatively low to thereby result in rate of penetration
And drilling tool is easy failure.In-situ data shows that the average rate of penetration of China member dam area deep-well drilling is only that upper part well section is flat
The 15%-30% of equal rate of penetration, some areas ratio are even lower than 8%.For the low problem of deep formation drilling efficiency,
International drilling well quotient contracts association (IADC) and repeatedly holds about the seminar for improving deep plot drilling efficiency.It is existing about raising
There are many ways to rate of penetration, such as improve drill bit, improve drill assembly, optimization drilling technology etc..However, by for many years
Development, these methods are all more ripe, also limited to the raising of rate of penetration.
In recent years, impact or pulse is very universal to improve rate of penetration for drilling well, such as axial impact
Hydraulic impacter, the pneumatic hammer of gas drilling, torsional pulse reverse impactor, other tools further include hydroscillator etc.
Tool.Although it is existing about drilling speed there are many ways to, in-situ data shows that these technologies can not answer to universality
With Some tools even have larger impact due to structure size to lower drilling tool.Drilling fluid is in drilling process for cooling down
The indispensable medium of drill bit and cutting carring, therefore how to make it while realizing not only functional using this medium but also make it can
It is difficult point place to improve rate of penetration.Directly and rock contact due to the drilling fluid at drill bit, so if on drill bit
Tool of the side's setting one for generating pressure and flow-rate impulse, can improve the mechanical characteristic of rock and rock unit is accelerated to damage
Wound, to further increase rate of penetration, present disclosure is how to design such a device.
Invention content
It is an object of the invention in order to overcome above-mentioned difficult point, spy proposes a kind of fluid power pulse generating unit and its operation side
Method is set, to improve drilling efficiency.
In order to achieve the above objectives, the present invention solve this technical problem the technical solution adopted is that:
A kind of fluid power pulse generating unit, mainly by shell, throttling pipe nipple, bullet shape pipe nipple, wiper block, gasket, spring, bullet
Spring lid, transmission shaft, turbine stator, turbine rotor, pull rod, support plate, support cap, thrust bearing composition, it is characterised in that:It is described
Throttling pipe nipple is threadingly attached to shell lower end, and throttling pipe nipple forms fluid power impulse generating unit, wiper block with shape pipe nipple is played
It is installed in the T-slot for playing shape pipe nipple, plays the upper and lower ends equipped with gasket, wiper block in the T-slot of shape pipe nipple and be mounted on bullet
Spring, for spring cup for preventing the spring above wiper block to be detached from, the periphery of transmission shaft lower end is closed oblique equipped with one
Slot;The turbine stator and turbine rotor form power unit, turbine stator and turbine rotor be fixed respectively in shell and
On transmission shaft;The pull rod, support plate, support cap and thrust bearing collectively constitute support unit.
A kind of fluid power pulse generating unit, it is characterised in that it is described throttling pipe nipple lower end circumferentially arranged with for
The hole of installation and dismounting, the upper end are equipped with the horn-like conical surface;The upper and lower ends for playing shape pipe nipple are respectively coniform and cylinder
Shape, the inner wall for playing shape pipe nipple upper end cylinder are set there are one bulb is driven, and the driving bulb opposite is equipped with a T-slot;It is described
The circular cone for playing shape pipe nipple lower end is equipped with radially-arranged aperture, avoids bullet shape pipe nipple from being formed when doing periodic motion and builds the pressure;Institute
The outside for stating bullet shape pipe nipple upper end cylinder is along the circumferential direction set there are three assistant, and the end of each assistant is embedded in the slot of shell
To limit the rotation for playing shape pipe nipple;The wiper block is T shape, and wiper block is equipped with righting bulb;On the bullet shape pipe nipple
Driving bulb and wiper block on the embedded transmission shaft lower end of righting bulb skewed slot in.
A kind of fluid power pulse generating unit, it is characterised in that the bottom end of the T-slot for playing shape pipe nipple, wiper block
Upper and lower ends, spring cup lower end be equipped with blind hole for placing spring;The material of the gasket be red copper to reduce with
Friction between wiper block.
The inner walls are equipped with axial groove and are used to place the assistant for playing shape pipe nipple, and inner walls are additionally provided with step for putting
Turbine stator is set, the upper end of inner walls is equipped with screw thread for connecting support plate;Step is equipped with outside the transmission shaft for putting
Set turbine rotor.
The operating method of a kind of fluid power pulse generating unit, it is characterised in that the turbine stator is by support plate pressure
It is tightly fixed on shell, turbine rotor is fixed by pull rod on transmission shaft, and support cap is connect by screw thread with pull rod, thrust
Bearing is set to the weight and fluid for bearing the fluid power pulse generating unit inner body between support cap and support plate
Pressure;Drilling fluid is flowed by fluid power pulse generating unit upper end, and turbine rotor is driven to drive transmission shaft rotation, transmission shaft
Rotation so that the skewed slot of its lower end is rotated synchronously;The driving bulb played on shape pipe nipple is located in skewed slot, and plays shape pipe nipple
It can not be rotated since its assistant is embedded in the slot of shell, the rotation of skewed slot will be such that bullet shape pipe nipple moves axially in reciprocal fashion;
The wiper block can be slided up and down along the T-slot for playing shape pipe nipple, and function is the driving effect for assisting playing shape pipe nipple, keeps away simultaneously
Exempt to play shape pipe nipple run-off the straight;When the wiper block slides under the driving of skewed slot along T-slot upward or downward, on wiper block
The spring of end or lower end is further compressed, and the spring cup is fixed on the top for playing shape pipe nipple by screw;In rotary chute
Drive under, the cone for playing shape pipe nipple lower end periodically be bonded with the horn-like conical surface of throttling pipe nipple, when bullet shape is short
When the driving bulb of section is located at the top of skewed slot, the horn-like conical surface of the separate throttling pipe nipple of cone of shape pipe nipple lower end is played, when
When the driving bulb of bullet shape pipe nipple is located at the bottom end of skewed slot, the horn-like conical surface of the cone and throttling pipe nipple of shape pipe nipple lower end is played
Fitting, during playing shape pipe nipple axially movable, the spacing of the cone and the horn-like conical surface constantly changes.
A kind of operating method of fluid power pulse generating unit, it is characterised in that the circular cone for playing shape pipe nipple lower end
The axial movement change drilling fluid of body flows through the area of passage at the horn-like conical surface of throttling pipe nipple, makes the flow velocity and pressure of drilling fluid
Power generates fluctuation, when the fluid power pulse generating unit is directly connected with drill bit, the drilling fluid under flow velocity and pressure oscillation
Efficiency of breaking rock can be improved;The shape pipe nipple lower end cone that plays is turned with the frequency that is bonded of the horn-like conical surface for the pipe nipple that throttles by turbine
The rotating speed of son determines, therefore the frequency of fluid power pulse can be adjusted by changing turbine structure;When the wiper block when mounted, it is first
It is first installed in T-slot and is bonded the righting bulb of wiper block with the skewed slot of transmission shaft lower end, then filled in gasket
In the T-slot for playing shape pipe nipple, and the spring and spring cup of wiper block upper end are installed.
Compared with prior art, the invention has the advantages that:(1) the fluid power pulse that apparatus of the present invention generate is available
In raising broken rock speed;(2) apparatus of the present invention can require the frequency of adjustment fluid power pulse according to bite type and formation characteristics;
(3) apparatus of the present invention are simple in structure, easy to operate.
Description of the drawings
Fig. 1 is a kind of fluid power pulse generating unit of the present invention, and when playing the driving bulb in shape pipe nipple, to be located at transmission shaft lower end oblique
The structural schematic diagram when top of slot;
Fig. 2 is a kind of fluid power pulse generating unit of the present invention, and when playing the driving bulb in shape pipe nipple, to be located at transmission shaft lower end oblique
The structural schematic diagram when bottom end of slot;
Fig. 3 is the sectional view of the Section A-A in Fig. 1;
Fig. 4 is the sectional view of the section B-B in Fig. 1;
Fig. 5 is the sectional view in the sections C-C in Fig. 1;
Fig. 6 is the sectional view in the sections D-D in Fig. 1;
Fig. 7 is that Fig. 1 is hit by a bullet the partial enlarged view in shape pipe nipple region;
Fig. 8 is a kind of structural schematic diagram of the bullet shape pipe nipple of fluid power pulse generating unit of the present invention;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the structural schematic diagram of wiper block
Figure 11 is the partial enlarged view with skewed slot part in a kind of transmission shaft of fluid power pulse generating unit of the present invention;
In figure:1. shell, 2. throttling pipe nipples, 3. bullet shape pipe nipples, 4. wiper blocks, 5. gaskets, 6. springs, 7. spring cups, 8.
Transmission shaft, 9. turbine stators, 10. turbine rotors, 11. pull rods, 12. support plates, 13. support caps, 14. thrust bearings.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Fig. 1~11, a kind of fluid power pulse generating unit, mainly by shell 1, throttling pipe nipple 2, play shape pipe nipple 3, help
Positive block 4, gasket 5, spring 6, spring cup 7, transmission shaft 8, turbine stator 9, turbine rotor 10, pull rod 11, support plate 12, support cap
13, thrust bearing 14 forms, it is characterised in that:The throttling pipe nipple 2 is threadingly attached to 1 lower end of shell, throttling pipe nipple 2 with
It plays shape pipe nipple 3 and forms fluid power impulse generating unit, wiper block 4 is installed in the T-slot for playing shape pipe nipple 3, plays the T shapes of shape pipe nipple 3
Upper and lower ends equipped with gasket 5, wiper block 4 in slot are mounted on spring 6, and spring cup 7 is used to prevent the spring above wiper block 4
6 are detached from, and the periphery of 8 lower end of transmission shaft is equipped with a closed skewed slot;The turbine stator 9 is formed with turbine rotor 10
Power unit, turbine stator 9 are fixed respectively with turbine rotor 10 on shell 1 and transmission shaft 8;The pull rod 11, support
Disk 12, support cap 13 and thrust bearing 14 collectively constitute support unit.
As shown in Figures 1 and 2, a kind of fluid power pulse generating unit, it is characterised in that under the throttling pipe nipple 2
End is equipped with the horn-like conical surface circumferentially arranged with the hole for installing and dismantling, the upper end.
As can be seen from figures 8 and 9, the upper and lower ends for playing shape pipe nipple 3 are respectively coniform and cylindric, play shape pipe nipple 3
The inner wall of upper end cylinder is set there are one bulb is driven, and the driving bulb opposite is equipped with a T-slot;Under the bullet shape pipe nipple 3
The circular cone at end is equipped with radially-arranged aperture, avoids bullet shape pipe nipple 3 from being formed when doing periodic motion and builds the pressure;The bullet shape pipe nipple
The outside of 3 upper end cylinders is along the circumferential direction set there are three assistant, and the end of each assistant is embedded in the slot of shell 1 to limit
Play the rotation of shape pipe nipple 3;The wiper block 4 is T shape, and wiper block 4 is equipped with righting bulb;The drive played on shape pipe nipple 3
In the skewed slot of embedded 8 lower end of transmission shaft of righting bulb on dynamic bulb and wiper block 4.
As shown in fig. 7, a kind of fluid power pulse generating unit, it is characterised in that the T-slot for playing shape pipe nipple 3
Bottom end, the upper and lower ends of wiper block 4, spring cup 7 lower end be equipped with blind hole for placing spring 6;The material of the gasket 5 is
Red copper is to reduce the friction between wiper block 4.
1 inner wall of the shell is equipped with axial groove and is used to place the assistant for playing shape pipe nipple 3, and 1 inner wall of shell is additionally provided with step use
In placing turbine stator 9, the upper end of 1 inner wall of shell is equipped with screw thread for connecting support plate 12;8 outside of the transmission shaft is equipped with platform
Rank is for placing turbine rotor 10.
As shown in Figures 1 and 2, a kind of operating method of fluid power pulse generating unit, it is characterised in that the whirlpool
Wheel stator 9 is fixed by support plate 12 on shell 1, and turbine rotor 10 is fixed by pull rod 11 on transmission shaft 8, is supported
Cap 13 is connect by screw thread with pull rod 11, and thrust bearing 14 is set between support cap 13 and support plate 12 for bearing the fluid power
The weight and Fluid pressure of pulse generating unit inner body;Drilling fluid is flowed by fluid power pulse generating unit upper end,
And driving turbine rotor 10 that transmission shaft 8 is driven to rotate, the rotation of transmission shaft 8 makes the skewed slot of its lower end rotate synchronously;The bullet shape
Driving bulb on pipe nipple 3 is located in skewed slot, and bullet shape pipe nipple 3 can not be rotated since its assistant is embedded in the slot of shell 1,
Therefore the rotation of skewed slot will be such that bullet shape pipe nipple 3 moves axially in reciprocal fashion;The wiper block 4 can be above and below the T-slot for playing shape pipe nipple 3
Sliding, function are the driving effect for assisting playing shape pipe nipple 3, while avoiding playing 3 run-off the straight of shape pipe nipple;When the wiper block
4 when sliding under the driving of skewed slot along T-slot upward or downward, and the spring 6 of 4 upper end of wiper block or lower end is further compressed,
The spring cup 7 is fixed on the top for playing shape pipe nipple 3 by screw;Under the drive of rotary chute, 3 lower end of bullet shape pipe nipple
Cone periodically be bonded with the horn-like conical surface of throttling pipe nipple 2, when the driving bulb of bullet shape pipe nipple 3 is located at the top of skewed slot
When end, the horn-like conical surface of the cone far from throttling pipe nipple 2 of 3 lower end of shape pipe nipple is played, when the driving bulb for playing shape pipe nipple 3 is located at
When the bottom end of skewed slot, the cone for playing 3 lower end of shape pipe nipple is bonded with the horn-like conical surface of throttling pipe nipple 2, is playing shape pipe nipple 3 along axis
During movement, the spacing of the cone and the horn-like conical surface constantly changes.
A kind of operating method of fluid power pulse generating unit, it is characterised in that the circle for playing 3 lower end of shape pipe nipple
The axial movement change drilling fluid of cone flows through the area of passage at the horn-like conical surface of throttling pipe nipple 2, makes the flow velocity of drilling fluid
And pressure generates fluctuation, and when the fluid power pulse generating unit is directly connected with drill bit, the brill under flow velocity and pressure oscillation
Efficiency of breaking rock can be improved in well liquid;It is described play 3 lower end cone of shape pipe nipple and the horn-like conical surface for the pipe nipple 2 that throttles be bonded frequency by
The rotating speed of turbine rotor determines, therefore the frequency of fluid power pulse can be adjusted by changing turbine structure;When the wiper block 4 is being pacified
It when dress, is installed on first in T-slot and is bonded the righting bulb of wiper block 4 with the skewed slot of 8 lower end of transmission shaft, then will
Gasket 5 is filled in the T-slot for playing shape pipe nipple 3, and installs the spring 6 and spring cup 7 of 4 upper end of wiper block.
The range that specific implementation mode described above is used to illustrate the present invention without limiting the present invention, the skill of any this field
Art personnel equivalent variations and modification made under the premise of not departing from design and the principle of the present invention, belong to the guarantor of the present invention
Protect range.
Claims (3)
1. a kind of fluid power pulse generating unit, mainly by shell (1), throttling pipe nipple (2), bullet shape pipe nipple (3), wiper block (4), pad
Piece (5), spring (6), spring cup (7), transmission shaft (8), turbine stator (9), turbine rotor (10), pull rod (11), support plate
(12), support cap (13), thrust bearing (14) composition, it is characterised in that:The throttling pipe nipple (2) is threadingly attached to shell
(1) lower end, throttling pipe nipple (2) form fluid power impulse generating unit with shape pipe nipple (3) is played, and wiper block (4), which is installed on, plays shape pipe nipple
(3) in T-slot, the upper and lower ends equipped with gasket (5), wiper block (4) in the T-slot of shape pipe nipple (3) is played and are mounted on spring
(6), spring cup (7) is used to prevent the spring (6) of wiper block (4) to be above detached from, and the periphery of transmission shaft (8) lower end is equipped with
One closed skewed slot;The turbine stator (9) forms power unit with turbine rotor (10), and turbine stator (9) turns with turbine
Sub (10) are fixed respectively on shell (1) and transmission shaft (8);The pull rod (11), support plate (12), support cap (13) and
Thrust bearing (14) collectively constitutes support unit;The lower end of the throttling pipe nipple (2) is circumferentially arranged with for installing and dismantling
Hole, the upper end are equipped with the horn-like conical surface;The upper end for playing shape pipe nipple (3) is cylindrical shape, and lower end is coniform, plays shape pipe nipple
(3) inner wall of upper end cylinder is set there are one bulb is driven, and the driving bulb opposite is equipped with a T-slot;The bullet shape pipe nipple
(3) circular cone of lower end is equipped with radially-arranged aperture, avoids bullet shape pipe nipple (3) from being formed when doing periodic motion and builds the pressure;It is described
The outside for playing shape pipe nipple (3) upper end cylinder is along the circumferential direction set there are three assistant, the embedded shell (1) in end of each assistant
To limit the rotation for playing shape pipe nipple (3) in slot;The wiper block (4) is T shape, and wiper block (4) is equipped with righting bulb;Institute
It states in the skewed slot for playing embedded transmission shaft (8) lower end of the righting bulb on driving bulb and wiper block (4) on shape pipe nipple (3);
It is described play shape pipe nipple (3) the bottom end of T-slot, the upper and lower ends of wiper block (4), spring cup (7) lower end be equipped with blind hole use
In placement spring (6);The material of the gasket (5) is red copper to reduce the friction between wiper block (4).
2. a kind of operating method of fluid power pulse generating unit according to claim 1, it is characterised in that the turbine is fixed
Sub (9) are fixed by support plate (12) on shell (1), and turbine rotor (10) is fixed by pull rod (11) in transmission shaft
(8) on, support cap (13) is connect by screw thread with pull rod (11), and thrust bearing (14) is set to support cap (13) and support plate (12)
Between for bearing the weight and Fluid pressure of the fluid power pulse generating unit inner body;Drilling fluid is by the fluid power arteries and veins
The inflow of generating means upper end is rushed, and drives turbine rotor (10) that transmission shaft (8) is driven to rotate, the rotation of transmission shaft (8) makes under it
The skewed slot at end rotates synchronously;The driving bulb played on shape pipe nipple (3) is located in skewed slot, and plays shape pipe nipple (3) due to it
It can not be rotated in the slot of assistant insertion shell (1), therefore the rotation of skewed slot will be such that bullet shape pipe nipple (3) moves axially in reciprocal fashion;
The wiper block (4) can slide up and down along the T-slot for playing shape pipe nipple (3), and function is that the driving for assisting playing shape pipe nipple (3) is made
With, while avoiding playing shape pipe nipple (3) run-off the straight;When the wiper block (4) under the driving of skewed slot along T-slot upward or downward
When sliding, the spring (6) of wiper block (4) upper end or lower end is further compressed, and the spring cup (7) is fixed on bullet by screw
The top of shape pipe nipple (3);Under the drive of rotary chute, it is described play shape pipe nipple (3) lower end cone periodically with throttling
The horn-like conical surface of pipe nipple (2) is bonded, and when the driving bulb for playing shape pipe nipple (3) is located at the top of skewed slot, is played under shape pipe nipple (3)
The horn-like conical surface of the cone at end far from throttling pipe nipple (2), when the driving bulb for playing shape pipe nipple (3) is located at the bottom end of skewed slot
When, the cone for playing shape pipe nipple (3) lower end is bonded with the horn-like conical surface of throttling pipe nipple (2), is transported in an axial direction playing shape pipe nipple (3)
In dynamic process, the spacing of the cone and the horn-like conical surface constantly changes.
3. a kind of operating method of fluid power pulse generating unit according to claim 1, it is characterised in that the bullet shape is short
The axial movement change drilling fluid of the cone of section (3) lower end flows through the area of passage at the horn-like conical surface of throttling pipe nipple (2),
The flow velocity and pressure for making drilling fluid generate fluctuation, when the fluid power pulse generating unit is directly connected with drill bit, flow velocity and
Efficiency of breaking rock can be improved in drilling fluid under pressure oscillation;The loudspeaker for playing shape pipe nipple (3) lower end cone and the pipe nipple (2) that throttles
The fitting frequency of the shape conical surface is determined by the rotating speed of turbine rotor, therefore the frequency of fluid power pulse can be adjusted by changing turbine structure
Rate;When the wiper block (4) when mounted, be installed on first in T-slot and by the righting bulb of wiper block (4) with transmission
The skewed slot of axis (8) lower end is bonded, and is then filled in gasket (5) in the T-slot for playing shape pipe nipple (3), and install wiper block (4) upper end
Spring (6) and spring cup (7).
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CN201386507Y (en) * | 2009-01-19 | 2010-01-20 | 中国石化集团胜利石油管理局钻井工艺研究院 | Rotary blocking type hydraulic power pulse well-drilling tool |
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CN202140018U (en) * | 2011-04-01 | 2012-02-08 | 郑军 | Twisting drilling hammer |
CN102191915B (en) * | 2011-06-02 | 2013-05-29 | 中国石油天然气集团公司 | Resonant pulse vibrating drilling device |
CN203035082U (en) * | 2013-01-29 | 2013-07-03 | 中国石油集团渤海钻探工程有限公司 | Underground plate valve type pulser |
CN203239230U (en) * | 2013-01-30 | 2013-10-16 | 中国石油天然气集团公司 | Downhole jet flow auxiliary drilling speed increasing device |
CN203321322U (en) * | 2013-06-01 | 2013-12-04 | 成都中腾石油工程技术有限公司 | Friction resistance reducing tool capable of extending drilling footage |
CN103291214B (en) * | 2013-06-19 | 2016-03-30 | 中国石油大学(华东) | Be applicable to the reciprocating hydraulic impacter of hard formation drilling well |
US20150136405A1 (en) * | 2013-11-18 | 2015-05-21 | Smith International, Inc. | Pressure pulse generating tool |
CN203614029U (en) * | 2013-12-18 | 2014-05-28 | 中国石油大学(华东) | Turbine torsional impact generator |
CN103670269B (en) * | 2013-12-18 | 2015-05-06 | 中国石油大学(华东) | Turbine torsional impact generator |
US9644434B2 (en) * | 2015-03-30 | 2017-05-09 | Gordon Technologies Llc | Shock absorbing UBHO/pulser sub assembly with optional mud filter |
CN204827232U (en) * | 2015-08-20 | 2015-12-02 | 四川川庆石油钻采科技有限公司 | Water conservancy pulser for well drilling |
-
2016
- 2016-11-09 CN CN201610981559.6A patent/CN106499340B/en not_active Expired - Fee Related
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