CN106437494B - A kind of roller constant flow fluidic efflux hammer - Google Patents
A kind of roller constant flow fluidic efflux hammer Download PDFInfo
- Publication number
- CN106437494B CN106437494B CN201610895899.7A CN201610895899A CN106437494B CN 106437494 B CN106437494 B CN 106437494B CN 201610895899 A CN201610895899 A CN 201610895899A CN 106437494 B CN106437494 B CN 106437494B
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- cylinder body
- center tap
- inner cylinder
- ball
- fluidic
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
Abstract
The present invention relates to a kind of roller constant flow fluidic efflux hammer, belong to oil and gas well drilling technical field.Its technical solution：Diverter valve assembly is installed in top connection, top connection lower end is connected with the first center tap, bistable fluidic lower end connects inner cylinder body, inner cylinder body is connected with cylinder cap, bistable fluidic, inner cylinder body and cylinder cap are all limited in the first center tap, energy storage leaf spring is equipped with inner cylinder body, energy storage leaf spring is spacing by limiting groove and positive stop lug boss, block stamp is connected with one-piece piston, and it is built in inner cylinder body, four ball assemblies have been arranged circumferentially along block stamp, second center tap lower end is connected with the 3rd center tap, hammering block is set with 3rd center tap, spline is provided with hammering block, spline position is provided with spin assembly, hammering block lower end is connected with lower contact.The present invention can increase the ballistic work of impactor, reduce the erosion attack of bistable fluidic, improve the stability and reliability of impactor, extend impactor service life.
Description
Technical field
The present invention relates to a kind of oil drilling tool, more particularly to a kind of roller for oil and gas well drilling operation
Constant flow fluidic efflux hammer.
Background technology
In the drilling engineering of petroleum industry, rotary percussion drilling is one of important method for improving brittle formation bit speed,
Broken rock is achieveed the purpose that by drill string torque and impactor shock loading collective effect.Hydraulic impacter is the important of rotary percussion drilling
Instrument, is broadly divided into two class of valve type and hydraulic jet.Valve type impactor is mainly pressed by the opening and closing of valve and spring and throttling
Power realizes block stamp impact and backhaul, and jet flow type shocker realizes that drilling fluid alternately enters piston by the attached wall switching of fluidic
Upper and lower cavity, so as to fulfill stroke and backhaul.Fluidic is the important component of jet flow type shocker, easy when drilling fluid displacement is excessive
There is phenomena such as erosion, block, shorten impactor service life, in addition the ballistic work of hydraulic jet impacter need to be improved.
CN202882755U discloses a kind of fluidic gland with part flow arrangement, and two tap holes are set on element gland, leads to
Cross the flow that various sizes of carboloy nozzle adjusting is installed in tap hole into fluidic, the flow warp shunted away
Impactor internal channel is discharged by bit nozzle, is not involved in doing work to block stamp.The invention needs to replace not under specific discharge capacity
With the nozzle of size, and the sealing between alloy nozzle and shunting gland is fragile, influences impactor performance.
The content of the invention
The purpose of the present invention is：For the shunting problems of overcome the deficiencies in the prior art, effectively solution impactor, Neng Gouyou
Effect reduces the inside frictional resistance of impactor in horizontal well and extended reach well rotary percussion drilling, increases ballistic work, and the energy of backhaul storage
Amount can effectively increase impactor performance, reduce the damage to bistable fluidic and cylinder body, provide a kind of roller constant flow
Fluidic efflux hammer.
In order to achieve the above object, the present invention uses following technical scheme：A kind of roller constant flow fluidic efflux hammer, is
By top connection, diverter valve assembly, the first center tap, the second center tap, bistable fluidic, inner cylinder body, energy storage leaf spring, monoblock type
Piston, block stamp, ball assembly, spin assembly and lower contact form, and are axially installed with diverter valve assembly in top connection, flow divider is total
Formed into by flow divider and disc spring, by the first center tap upper surface contact, top connection lower end passes through in screw thread and first disc spring
Connector connects, and the first center tap is made of nozzle and outer cylinder body, and nozzle lower end is connected with bistable fluidic, bistable fluidic
Lower termination inner cylinder body, inner cylinder body are connected with cylinder cap by three screws being arranged circumferentially；Bistable fluidic, inner cylinder body and
By the second center tap upper surface contact, bistable fluidic, inner cylinder body and cylinder cap are all limited in the first center tap cylinder cap；It is interior
Energy storage leaf spring is provided with cylinder body, energy storage leaf spring is spacing by limiting groove and positive stop lug boss, and adjusting rod leads to one-piece piston
Cross threaded connection；Block stamp is connected through a screw thread with one-piece piston, and is built in inner cylinder body；It has been arranged circumferentially along block stamp
Four ball assemblies, spin assembly is from block stamp lower face 20cm~25cm, and ball assembly is by ball blend stop, ball and ball base structure
Into, be between ball base and block stamp interference fit；Second center tap lower end is connected through a screw thread with the 3rd center tap, is connect in the 3rd
Hammering block is set with head, spline is provided with hammering block, spline position is provided with spin assembly, and hammering block lower end passes through spiral shell with lower contact
Line connects.
5~10 balls are placed in above-mentioned ball base, and it is spacing with ball blend stop, and ball blend stop is welded on ball base.
Above-mentioned energy storage leaf spring is installed on intracavitary on inner cylinder body, is limited respectively by the limiting groove and positive stop lug boss of inner cylinder body
The axial and circumferential movement of energy storage leaf spring.
The cemented carbide powder that weldering thickness is 2mm is spread respectively in the piston rod of one-piece piston and the wall of cylinder cap friction part
To form piston rod wearing layer and cylinder cap wearing layer, the surface roughness of piston rod wearing layer and cylinder cap wearing layer is not more than at end
3.2。
Above-mentioned inner cylinder body selects high performance hot-work die steel casting to form.
The present invention compared with the prior art, has the advantages that：(1) diverter valve assembly, energy are provided with top connection
Enough to shunt excessive drilling fluid, the flow shunted away is discharged by circulation canal inside impactor by bit nozzle, from
And the erosion attack that bistable fluidic is subject to effectively is reduced, increase the service life of bistable fluidic；(2) set in inner cylinder body
Energy storage leaf spring is equipped with, the energy of backhaul stage block stamp generation can be stored, and is discharged at the block stamp stroke stage, is improved
Ballistic work, effectively alleviates the impact failure for being subjected to cylinder body and bistable fluidic due to block stamp back stroke impact；(3) block stamp edge
Four ball assemblies have been arranged circumferentially it so that the friction between block stamp and the second center tap is changed into rolling from sliding friction and rubs
Wipe, reduce frictional resistance, improve the ballistic work of impactor, reduce the abrasion of the second center tap inner wall；(4) one-piece piston
The wall of piston rod and cylinder cap friction part paving weldering cemented carbide powder forms wearing layer, improves the wear-resisting of cylinder cap and piston rod
Property, the abrasion of cylinder cap and piston rod is reduced, extends service life；(5) the 3rd center taps pass through spline fitted, flower with hammering block
Key connection position sets spin assembly, can reduce friction, transmits moment of torsion.
Brief description of the drawings
Fig. 1 is a kind of roller constant flow fluidic efflux hammer structure diagram of the present invention.
Fig. 2 is the A-A sectional views of this fluidic efflux hammer Fig. 1.
Fig. 3 is the B-B sectional views of this fluidic efflux hammer Fig. 1.
Fig. 4 is the C-C sectional views of this fluidic efflux hammer Fig. 1.
Fig. 5 is the D-D sectional views of this fluidic efflux hammer Fig. 1.
Fig. 6 is the E-E sectional views of this fluidic efflux hammer Fig. 1.
Fig. 7 is the F-F sectional views of this fluidic efflux hammer Fig. 1.
Fig. 8 is the G-G sectional views of this fluidic efflux hammer Fig. 1.
In figure：1-top connection, 2-diverter valve assembly, 2a-flow divider, 2b-disc spring, the 3-the first baffle ring, the 4-the one O
Type sealing ring, the 5-the first center tap, 6-bistable fluidic, 7-inner cylinder body, 7a-limiting groove, 7b-cavity of resorption input are logical
Road, 7c-epicoele input channel, 7d-positive stop lug boss, 8-one-piece piston, the 9-the second baffle ring, the 10-the second O-ring seal,
11-fabroil axle sleeve, the 12-the three O-ring seal, 13-foot shape slip ring, 14-cylinder cap, 15-piston rod wearing layer,
16-cylinder cap wearing layer, the 17-the second center tap, 18-block stamp, 19-ball assembly, 19a-ball blend stop, 19b-ball,
19c-ball base, 20-hammering block, 20a-hammering block flowing hole, the flow channels of 20b-the 4th, 20c-spline, 21-spin are total
Into 21a-catch, 21b-spin, 21c-spin seat, the 22-the three center tap, 23-lower contact, 24-the first crosses circulation
Road, 25-screw, the 26-the second flow channels, 27-cover board, 28-middle plate, 29-bottom plate, 30-energy storage leaf spring, 31-the three
Flow channels, 32-epicoele, 33-adjusting rod, 34-cavity of resorption, 35-gasket, 36-becket.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
As Figure 1-Figure 8, a kind of roller constant flow fluidic efflux hammer of the present invention is characterized in that：A kind of roller is determined
Flow fluidic efflux hammer, is by top connection 1, diverter valve assembly 2, bistable fluidic 6, inner cylinder body 7, energy storage leaf spring 30, entirety
Formula piston 8, block stamp 18, ball assembly 19, spin assembly 21 and lower contact 23 form.1 upper end of top connection passes through screw thread with drill collar
Connection, 1 lower end of top connection are connected by screw thread with the first center tap 5, and first is provided between 1 and first center tap 5 of top connection
3 and first O-ring seal 4 of baffle ring；Diverter valve assembly 2 is made of flow divider 2a and disc spring 2b, and diverter valve assembly 2 is placed in top connection
In 1, disc spring 2b passes through 5 upper surface contact of the first center tap, the 2b axial movements of limitation disc spring；Bistable fluidic 6 is placed in first
In center tap 5, bistable fluidic 6 is made of cover board 27, middle plate 28 and bottom plate 29, between cover board 27 and middle plate 28, middle plate 28
It is designed with sealing between bottom plate 29, cover board 27, middle plate 28 and bottom plate 29 are connected by eight screws；Under bistable fluidic 6
End connection inner cylinder body 7, inner cylinder body 7 are internally provided with energy storage leaf spring 30, and energy storage leaf spring 30 is limited by the limiting groove 7a of inner cylinder body 7
Axial movement, the top of inner cylinder body 7 are equipped with epicoele input channel 7c and positive stop lug boss 7d, positive stop lug boss 7c limitation energy storage leaf spring 30 weeks
To movement.Inner cylinder body 7 is placed in the first center tap 5, and cavity of resorption input channel is formed between 7 and first center tap of inner cylinder body, 5 inner wall
7b, cavity of resorption input channel 7b are sealed by two O-ring seals.One-piece piston 8 divides inner cylinder body 7 for epicoele 32 and cavity of resorption
34, becket 36 is equipped between 7 inner wall of one-piece piston 8 and inner cylinder body.Inner cylinder body 7 and cylinder cap 14 by be evenly distributed three
A screw connection, inner cylinder body 7 are sealed with cylinder cap 14 by the second baffle ring 9 and the second O-ring seal 10, inner cylinder body 7 and cylinder cap 14
Between be provided with gasket 35.It is 2mm to spread weldering thickness respectively in the wall of 14 friction part of piston rod and cylinder cap of one-piece piston 8
Cemented carbide powder to form piston rod wearing layer 15 and cylinder cap wearing layer 16, piston rod wearing layer 15 and cylinder cap wearing layer 16
Surface roughness be not more than 3.2.Dynamic sealing, car seal are realized by Che Shi sealings between cylinder cap 14 and one-piece piston 8
It is made of fabroil axle sleeve 11, the 3rd O-ring seal 12 and foot shape slip ring 13.8 lower part of one-piece piston passes through with block stamp 18
It is threadedly coupled, block stamp 18 is placed in the second center tap 17, and 17 top of the second center tap is connected through a screw thread with the first center tap 5,
Second center tap, 17 lower part is connected through a screw thread with the 3rd center tap 22.Four ball assemblies have been arranged circumferentially along block stamp 18
19, ball assembly 19 is away from 18 lower face 20cm~25cm of block stamp, this example is 20cm, and ball assembly 19 is by ball blend stop 19a, rolling
Pearl 19b, ball base 19c are formed.It is interference fit between ball base 19c and block stamp 18,5~10 balls is placed in ball base
19b, is 5 in this example, ball 19b is limited in ball base 19c by ball blend stop 19a, and ball blend stop 19a is welded on rolling
On pearl seat 19c.Hammering block 20 is set with 3rd center tap 22, hammering block flowing hole 20a and the 4th is provided with hammering block 20 and crosses circulation
Road 20b, hammering block 20 are equipped with spline 20c.Hammering block 20 and 22 splined connecting portion of the 3rd center tap have circumferentially been evenly arranged four
A spin assembly 21, spin assembly 21 are made of catch 21a, spin 21b, spin seat 21c, and slot is equipped with the top of spin seat 21c,
Catch 21a is placed in spin seat 21c slots, and spin 21b is in spin seat 21c.20 lower end of hammering block passes through spiral shell with lower contact 23
Line connects, 23 times termination drill bits of lower contact.
Two the first flow channels 24 are arranged symmetrically in top connection 1, two the second mistakes have been arranged symmetrically in the first center tap 5
Circulation road 26, has been arranged symmetrically two the 3rd flow channels 31 in inner cylinder body 7.First flow channels 24, the second flow channels 26,
It is logical inside impactor that 3rd flow channels 31, hammering block flowing hole 20a and the 4th flow channels 20b collectively constitute drilling fluid
Road.Compressive state is in after disc spring 2b installations, it is ensured that flow divider 2a is closed when pump amount is low, and drilling fluid is directly entered without shunting
First center tap 5.When pump amount increase, when the power that drilling fluid is applied on flow divider 2a is more than disc spring 2b elastic force, flow divider 2a to
Lower movement, the first flow channels 24 are opened, and unnecessary drilling fluid is realized by the first flow channels 24 and shunted, effectively protection impact
Device.Different disc spring 2b decrements can be set for different operating modes, so as to adjust the SHUNT state of flow divider, realize constant current
Amount.
When impactor works, the drilling fluid flowed into by top rod enters impactor through top connection 1, if flow divider 2a
Institute's stress is less than disc spring 2b pretightning forces, and drilling fluid is directly entered bistable fluidic 6, if flow is sufficiently large, compresses disc spring 2b, real
Now shunt, a part of drilling fluid is through the first flow channels 24, the second flow channels 26, the 3rd flow channels 31, hammering block flowing hole
20a, the 4th flow channels 20b and lower contact 23 enter drill bit；Another part drilling fluid enters bistable jet stream by flow divider 2a
Element 6, drilling fluid produce attached wall effect after entering bistable fluidic 6, it is assumed that first attached wall is bored in the right side of bistable fluidic 6
Well liquid enters cavity of resorption 34 by the 3rd flow channels 31 of right side, promotes 8 uplink of one-piece piston, and adjusting rod 33 connects with energy storage leaf spring 30
Compressed energy-storage leaf spring 30 after touch.One-piece piston 8 goes upward to stroke and produces water hammer finally, while feedback signal makes drilling fluid
The left side of bistable fluidic 6 is switched to by the right side of bistable fluidic 6, drilling fluid enters epicoele from the 3rd flow channels 31 of left side
32, promote 18 downlink of one-piece piston 8 and block stamp.18 downlink of block stamp starts rear energy storage leaf spring 30 and springs back, and rebound effect is being adjusted
On pole 33,18 downlink of block stamp is promoted.Hammering block 20 is impacted when block stamp 18 comes downwards to stroke finally, impact force is transmitted by hammering block 20
To drill bit.Feedback signal makes the attached wall of jet stream enter cavity of resorption 34 in the right side of bistable fluidic 6, drilling fluid at this time.Impactor works
During low pressure chamber drilling fluid by bistable fluidic 6 empty road enter the 3rd flow channels 31, then flow through hammering block mistake
Shaft bottom is impacted in discharge orifice 20a, the 4th flow channels 20b and lower contact 23, into annular space.
Claims (5)
1. a kind of roller constant flow fluidic efflux hammer, be by top connection, diverter valve assembly, the first center tap, the second center tap,
Bistable fluidic, inner cylinder body, energy storage leaf spring, one-piece piston, block stamp, ball assembly, spin assembly and lower contact composition, its
It is characterized in：Diverter valve assembly (2) is axially installed with top connection (1), diverter valve assembly (2) is by flow divider (2a) and disc spring (2b)
Composition, for disc spring (2b) by the first center tap (5) upper surface contact, top connection (1) lower end passes through screw thread and the first center tap (5)
Connection, the first center tap (5) are made of nozzle and outer cylinder body, and nozzle lower end is connected with bistable fluidic (6), bistable jet stream member
Part (6) lower end connection inner cylinder body (7), inner cylinder body (7) are connected with cylinder cap (14) by three screws (25) being arranged circumferentially；
Bistable fluidic (6), inner cylinder body (7) and cylinder cap (14) pass through the second center tap (17) upper surface contact, bistable fluidic
(6), inner cylinder body (7) and cylinder cap (14) are all limited in the first center tap (5)；Energy storage leaf spring (30) is equipped with inner cylinder body (7), is stored up
Energy leaf spring (30) is spacing by limiting groove (7a) and positive stop lug boss (7d), and adjusting rod (33) passes through spiral shell with one-piece piston (8)
Line connects；Block stamp (18) is connected through a screw thread with one-piece piston (8), and is built in inner cylinder body (7)；It is circumferential along block stamp (18)
Four ball assemblies (19) are evenly arranged, ball assembly (19) is from block stamp (18) lower face 20cm~25cm, ball assembly
(19) it is made of ball blend stop (19a), ball (19b) and ball base (19c), was between ball base (19c) and block stamp (18)
It is full of cooperation；Second center tap (17) lower end is connected through a screw thread with the 3rd center tap (22), is set with the 3rd center tap (22)
Hammering block (20), is provided with spline (20c) on hammering block (20), and spline (20c) position is provided with spin assembly (21), under hammering block (20)
End is connected through a screw thread with lower contact (23).
2. a kind of roller constant flow fluidic efflux hammer according to claim 1, it is characterized in that：Put in ball base (19c)
5~10 balls (19b) are put, and it is spacing with ball blend stop (19a), and ball blend stop (19a) is welded on ball base (19c).
3. a kind of roller constant flow fluidic efflux hammer according to claims 1, it is characterized in that：Energy storage leaf spring (30) is pacified
In inner cylinder body (7) epicoele (32), energy storage is limited by the limiting groove (7a) and positive stop lug boss (7d) of inner cylinder body (7) respectively
The axial and circumferential movement of leaf spring (30).
4. a kind of roller constant flow fluidic efflux hammer according to claims 1, it is characterized in that：In one-piece piston
(8) it is the cemented carbide powder of 2mm to form piston that piston rod and the wall of cylinder cap (14) friction part spreads weldering thickness respectively
The surface roughness of bar wearing layer (15) and cylinder cap wearing layer (16), piston rod wearing layer (15) and cylinder cap wearing layer (16) is little
In 3.2.
5. a kind of roller constant flow fluidic efflux hammer according to claims 1, it is characterized in that：Inner cylinder body (7) is selected
High performance hot-work die steel casting forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895899.7A CN106437494B (en) | 2016-10-14 | 2016-10-14 | A kind of roller constant flow fluidic efflux hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895899.7A CN106437494B (en) | 2016-10-14 | 2016-10-14 | A kind of roller constant flow fluidic efflux hammer |
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| Publication Number | Publication Date |
|---|---|
| CN106437494A CN106437494A (en) | 2017-02-22 |
| CN106437494B true CN106437494B (en) | 2018-05-04 |
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ID=58173551
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610895899.7A Active CN106437494B (en) | 2016-10-14 | 2016-10-14 | A kind of roller constant flow fluidic efflux hammer |
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| CN (1) | CN106437494B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006680B (en) * | 2021-03-19 | 2022-10-28 | 成都欧维恩博石油科技有限公司 | Low-pressure-loss torsion impact drilling tool and rock breaking method |
| CN113565432B (en) * | 2021-09-05 | 2022-07-08 | 东北石油大学 | Jet-type impactor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385068Y (en) * | 1998-05-15 | 2000-06-28 | 长春科技大学 | Deep well drilling fluid dynamic jet impacter |
| CN2550477Y (en) * | 2002-01-14 | 2003-05-14 | 中国石油化工股份有限公司 | Jet flow type impact device |
| DE10392218B4 (en) * | 2002-01-14 | 2013-07-18 | China Petroleum And Chemical Corporation | Impact drills for drilling in the oil industry with fluid propulsion and its use |
| CN102052056A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Hydraulic jet type impactor |
| CN202913948U (en) * | 2012-11-29 | 2013-05-01 | 中国石油集团渤海钻探工程有限公司 | Fluidic type hydro-percussive hammer for increase of drilling speed |
| CN205297316U (en) * | 2015-12-18 | 2016-06-08 | 中国石油天然气集团公司 | Level is directional bores with efflux formula churn drilling tools that surges |
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- 2016-10-14 CN CN201610895899.7A patent/CN106437494B/en active Active
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