CN106894803A - A kind of staged fracturing of horizontal well is with big gradient scope pitching machine - Google Patents
A kind of staged fracturing of horizontal well is with big gradient scope pitching machine Download PDFInfo
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- CN106894803A CN106894803A CN201710102758.XA CN201710102758A CN106894803A CN 106894803 A CN106894803 A CN 106894803A CN 201710102758 A CN201710102758 A CN 201710102758A CN 106894803 A CN106894803 A CN 106894803A
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- 210000000078 claw Anatomy 0.000 claims abstract description 25
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000008520 organization Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Coke Industry (AREA)
Abstract
The invention belongs to petroleum works field, in particular it relates to a kind of staged fracturing of horizontal well is with big gradient scope pitching machine；The device mainly includes：Wall cylinder, top connection, O-ring, upper clipping claw, pin, upper snap ring, pin, slanting baffle, torsion spring, lower snap ring, ball cylinder, nut, upper throw-out collar, downslide slotted disk, gliding groove, upper reset spring, pin, lower throw-out collar, lower baffle ring, nut pair, lower inclined plane sliding block, O-ring, lower contact, O-ring, low sleeve, connecting rod, lower back-moving spring, upper hopper chute disk, upper baffle ring, ramp sliding block, upper hopper chute, upper sliding sleeve, slide bar, pin, lower claw, retainer ring, fixing nut, ball group, O-ring, torsion spring, nut, gasket seal, end cap, bolt；Wall cylinder up and down inlet opening feed liquor when, upper throw-out collar is promoted opens slanting baffle, and ball falls lower baffle ring, and then slanting baffle is closed, and lower baffle ring is opened, and ball is fallen into well, completes pitching operation.Upper and lower inlet opening replaces feed liquor just can complete multiple pitching operation.The ball injector can realize Automatic Control, and control accuracy is high, and controlling organization is simple, and pitching size range is big, the efficiency of the well staged fracturing that can improve the standard.
Description
Technical field
The invention belongs to petroleum works field, in particular it relates to a kind of staged fracturing of horizontal well is automatic with big gradient scope
Ball injector, realizes that well head automates many ball pitching operations.
Background technology
In oil gas horizontal wells, to increase yield, staged fracturing is carried out to horizontal well, be guarantee during staged fracturing
Build the pressure set packer in well or the opening perforated liners that build the pressure carry out being smoothed out for perforating job, can be used in operation process
Multiple balls, and ball seat in oil pipe constitutes the opening and closing that ball valve realizes oil pipe.The ball injector used in scene at present is still
One hydraulic cylinder controls falling for ball, and this kind of ball injector is not only bulky, and needs complex control system.
Or be mechanical type manual operation, it is dangerous higher.
The content of the invention
It is the drawbacks described above for overcoming prior art to exist, the present invention proposes a kind of staged fracturing of horizontal well with big gradient model
Enclose pitching machine
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of staged fracturing of horizontal well is included as Figure 1-4 with big gradient scope pitching machine：Wall cylinder, top connection,
O-ring, upper clipping claw, pin, upper snap ring, pin, slanting baffle, torsion spring, lower snap ring, ball cylinder, nut, upper throw-out collar, downslide slotted disk, under
Chute, upper reset spring, pin, lower gear ring, lower throw-out collar, nut pair, lower inclined plane sliding block, O-ring, lower contact, O-ring glides
Set, connecting rod, lower back-moving spring, upper hopper chute disk, upper baffle ring, ramp sliding block, upper hopper chute；Upper sliding sleeve, slide bar, pin, lower card
Pawl, retainer ring, fixing nut, ball group, O-ring, torsion spring, nut, gasket seal, end cap, bolt.Top connection and lower contact and wall
Cylinder thread connection sealing, there is connecting rod thread connection between upper sliding sleeve and low sleeve；Radial screw connection between upper snap ring and top connection
Connect, radial screw connection between retainer ring and upper sliding sleeve；Upper throw-out collar is fastened in connecting rod by nut, and lower throw-out collar empty set is in connection
It is relative between spacing all shoulders that can be in nut group and connecting rod to slide on bar；Slide bar is connected in retainer ring by nut；Under
Snap ring empty set, can be in the spacing all shoulders of slide bar and the relative slip of fixed interannular on slide bar；Pin connection between upper clipping claw and upper snap ring
Connect, between have torsion spring；Between lower claw and lower snap ring pin connection, between have torsion spring；Upper hopper chute disk and lower contact thread connection,
Thread connection between upper hopper chute and upper hopper chute disk, ramp sliding block relative between upper hopper chute can be slided；Downslide slotted disk and ball cylinder screw thread
Connection, thread connection between gliding groove and downslide slotted disk, lower inclined plane sliding block relative between gliding groove can be slided；Slanting baffle and upper baffle ring
Between pin connection, the groove of slanting baffle upper end can slip relative with the pin on ball cylinder；Upper baffle ring can glide in the chute in slotted disk
It is relative to slide；Lower baffle ring relative in the chute of lower contact can be slided；Between top connection and upper sliding sleeve, upper sliding sleeve and wall cylinder between, under
It is O-ring sealing between sliding sleeve and wall cylinder and between low sleeve and lower contact；There is dismounting hole in top connection and lower contact.
Relative to existing technology, the present invention has the advantages that：
1st, it is relatively low to hydraulic control system requirement；
2nd, one-time pad can complete the pitching operation of multiple setting balls, improve the efficiency of fracturing work；
3rd, Automated condtrol is easily realized；
4th, control accuracy is high, is not in maloperation；
Brief description of the drawings
Fig. 1 is a kind of big gradient scope pitching machine overall structure diagram of staged fracturing of horizontal well；
Fig. 2 is a kind of big gradient scope pitching machine internal structure schematic three dimensional views of staged fracturing of horizontal well；
Fig. 3 is a kind of big gradient scope pitching machine ball group # schematic diagram of staged fracturing of horizontal well；
Fig. 4 is a kind of big gradient scope pitching machine motion sketch of staged fracturing of horizontal well；
Fig. 5 is a kind of big gradient scope pitching machine workflow diagram of staged fracturing of horizontal well；
In figure：1st, wall cylinder, 2, top connection, 3, O-ring, 4, upper clipping claw, 5, pin, 6, upper snap ring, 7, pin, 8, oblique gear
Plate, 9, torsion spring, 10, lower snap ring, 11, ball cylinder, 12, nut, 13, upper throw-out collar, 14, downslide slotted disk, 15, gliding groove, 16, upper reset
Spring, 17, pin, 18, lower throw-out collar, 19, lower baffle ring, 20, nut pair, 21, lower inclined plane sliding block, 22, O-ring, 23, lower contact,
24th, O-ring, 25, low sleeve, 26, connecting rod, 27, lower back-moving spring, 28, upper hopper chute disk, 29, upper baffle ring, 30, ramp slides
Block, 31, upper hopper chute, 32, upper sliding sleeve, 33, slide bar, 34, pin, 35, lower claw, 36, retainer ring, 37, fixing nut, 38, ball
Group, 39, O-ring, 40, torsion spring, 41, nut, 42, gasket seal, 43, end cap, 44, bolt.
Specific embodiment
As Figure 1-4, a kind of staged fracturing of horizontal well is with big gradient scope pitching machine, including：Wall cylinder 1, on connect
First 2, O-ring 3, upper clipping claw 4, pin 5, upper snap ring 6, pin 7, slanting baffle 8, torsion spring 9, lower snap ring 10, ball cylinder 11, nut 12,
Upper throw-out collar 13, downslide slotted disk 14, gliding groove 15, upper reset spring 16, pin 17, lower throw-out collar 18, lower baffle ring 19, nut to 20,
Lower inclined plane sliding block 21, O-ring 22, lower contact 23, O-ring 24, low sleeve 25, connecting rod 26, lower back-moving spring 27, upper hopper chute disk
28th, upper baffle ring 29, ramp sliding block 30, upper hopper chute 31, upper sliding sleeve 32, slide bar 33, pin 34, lower claw 35, retainer ring 36, solid
Determine nut 37, ball group 38, O-ring 39, torsion spring 40, nut 41, gasket seal 42, end cap 43, bolt 44.
Top connection 2 and lower contact 23 and wall cylinder 1 thread connection sealing, have dismounting hole in top connection 2 and lower contact 23；On connect
It is between first 2 and upper sliding sleeve 32, between upper sliding sleeve 32 and wall cylinder 1, between low sleeve 25 and wall cylinder 1 and between low sleeve 25 and lower contact 23
O-ring is sealed；
There is the thread connection of connecting rod 26 between upper sliding sleeve 32 and low sleeve 25；Radial screw connection between upper snap ring 6 and top connection 2
Connect, radial screw connection between retainer ring 36 and upper sliding sleeve 32；
Pin 5 couples between upper clipping claw 4 and upper snap ring 6, between have torsion spring 40；Pin between lower claw 35 and lower snap ring 10
34 connection, between have torsion spring 9；Slide bar 33 is connected in retainer ring 36 by fixing nut 37；The lower empty set of snap ring 10 is in slide bar 33
On, relative between the spacing all shoulders of slide bar 33 and retainer ring 36 can slide；
Upper throw-out collar 13 is fastened in connecting rod 26 by nut 12, and the lower empty set of throw-out collar 18, can be in nut in connecting rod 26
The spacing all shoulders in lower limits and connecting rod 26 that group 20 is formed into upper limit between relative slide；
Upper hopper chute disk 28 and the thread connection of lower contact 23, thread connection between upper hopper chute 31 and upper hopper chute disk 28, ramp are slided
Block 30 relative between upper hopper chute 31 can be slided；Downslide slotted disk 14 and ball 11 thread connections of cylinder, between gliding groove 15 and downslide slotted disk 14
Thread connection, lower inclined plane sliding block 21 relative between gliding groove 15 can be slided；
Upper throw-out collar 13 and lower throw-out collar 18 can respectively promote ramp sliding block 30 and lower inclined plane sliding block 21 to horizontally slip；Upper baffle ring
29 relative in the chute in downslide slotted disk 14 can slide, and have upper reset spring 16 between upper baffle ring 29 and downslide slotted disk 14, it is ensured that
Upper baffle ring 29 presses ramp sliding block 30, and ramp sliding block 30 presses promotion ring 13；Lower baffle ring 19 can be in the cunning of lower contact 23
It is relative in groove to slide, there is lower back-moving spring 27 between lower baffle ring 19 and lower contact 23, it is ensured that lower baffle ring 19 presses lower inclined plane sliding block 21,
Lower inclined plane sliding block 21 presses lower throw-out collar 18；
29 pins 17 of slanting baffle 8 and upper baffle ring couple, and can relatively rotate；The groove of the upper end of slanting baffle 8 can with ball cylinder 11 on
Pin 7 relative to slide and rotate；
A kind of above-mentioned staged fracturing of horizontal well is as follows with the application method of big gradient scope pitching machine：
As shown in Fig. 5 (1), down stroke pitching：A mouthfuls of feed liquor, connecting rod 26 is descending, and upper throw-out collar 13 thereon promotes ramp
Sliding block 30 is moved right, and then promotes upper baffle ring 29 to move right, and upper reset spring 16 is compressed, and slanting baffle 8 is opened so that ball cylinder
The ball 381 of the bottom of ball group 38 in 11 passes through to drop down onto on lower baffle ring 18 (shown in such as Fig. 5 (2)) under the hole on upper baffle ring 29, this
When distance between upper baffle ring 29 and lower baffle ring 19 it is more slightly larger than the diameter of ball 382, but less than the diameter of ball 381 and the radius sum of ball 382, protect
Demonstrate,prove each only one of which ball and drop out ball cylinder.Lower throw-out collar 18 is near lower limit, descending with connecting rod 26, moves to lower inclined plane cunning
When at block 21, hindered by lower inclined plane sliding block 21, temporarily slided in connecting rod 26.Connecting rod 26 is continued traveling downwardly, upper throw-out collar
13 lower sections for running to the salient point of ramp sliding block 30, ramp sliding block 30, upper baffle ring 29 are multiple in the presence of upper reset spring 16
Position, slanting baffle 8 is closed, the remaining ball group 38 in clamping balls cylinder 11.Now, lower throw-out collar 18 reaches upper limit.(such as Fig. 5 (3) institute
Show).Connecting rod 26 is continued traveling downwardly, and lower throw-out collar 18 starts descending, promotes lower inclined plane sliding block 21 and lower baffle ring 19 to left movement, ball from
Lower baffle ring 19 is fallen into lower contact 23, hence into (such as Fig. 5 (4) is shown) in well.
Connecting rod 26 is continued traveling downwardly, and lower throw-out collar 18 runs to the lower section of the salient point of lower inclined plane sliding block 21, lower inclined plane sliding block 21, under
Baffle ring 19 resets (shown in such as Fig. 5 (5)) in the presence of lower back-moving spring 27.The bump of lower inclined plane sliding block 21 is reached in lower throw-out collar 18
During lower section, the top of slide bar 33 in connecting rod 26 is reached at lower claw 35, and lower claw 35 is stuck on ball cylinder 11 before this, slide bar
33 slide along the through hole on lower snap ring 10 is relative.Connecting rod 26 is continued traveling downwardly, slide bar promoted between 33 weeks claw 35 along ball cylinder to
Lower motion, move distance is the twice of the bulb diameter gradient of ball group 38.Now ball cylinder is blocked by upper clipping claw 4, and position is constant.Once throw
Chou beam.
Up stroke pitching：As shown in Fig. 5 (6), B mouthfuls of feed liquor, connecting rod 26 is up, and lower throw-out collar 18 is subject to lower inclined plane sliding block 21
Resistance, it is relative in connecting rod 26 to slide.Upper throw-out collar 13 is moved upwards with connecting rod 26, promotes ramp sliding block 30 to transport to the right
It is dynamic, and then promote upper baffle ring 29 to move right, slanting baffle 8 is opened so that ball 382 passes through upper baffle ring in the ball group 38 in ball cylinder 11
Dropped down onto under hole on 29 on lower baffle ring 18.Connecting rod 26 continues up, and upper throw-out collar 13 runs to the upper of the salient point of ramp sliding block 30
Side, ramp sliding block 30, upper baffle ring 29 are resetted in the presence of upper reset spring 16, and slanting baffle 8 is closed, in clamping balls cylinder 11
Remaining ball group 38 (shown in such as Fig. 5 (7)).Now, lower throw-out collar 18 reach lower limit start it is up, promote lower inclined plane sliding block 21 and under
Baffle ring 18 is fallen into lower contact 23 to left movement, ball from lower baffle ring 19, hence into well, completes second pitching operation (such as
Shown in Fig. 5 (8)).
Connecting rod 26 continues up, and lower throw-out collar 18 runs to the top of the salient point of lower inclined plane sliding block 21, lower inclined plane sliding block 21, lower block
Ring 19 resets in the presence of lower back-moving spring 27.When lower throw-out collar 18 is reached above the salient point of lower inclined plane sliding block 21, connecting rod 26
On the bottom of slide bar 33 reach at lower claw 35, lower claw 35 is slided along slide bar 33 is relative before this, on connecting rod 26 continues
OK, claw 35 is promoted to drive ball cylinder 11 to move upwards, the now unfreezing of upper clipping claw 4, when motion stops, upper clipping claw 4 blocks ball cylinder 11,
The twice of this process ball cylinder bulb diameter gradient of 11 rising ball group 38, the distance between upper baffle ring 29 and lower baffle ring 19 increases the ball of ball group 38
The twice of diameter gradient.Diameter diameter less than 383 and the radius sum of ball 384 of the distance more than ball 384.Secondary pitching knot
Beam.
After this process terminates, the twice of the bulb diameter gradient of ball group 38 is moved on the relative ramp sliding block 30 of upper baffle ring 29, in water
Square to the twice of the bulb diameter gradient of ball group 38 and the product of the slope of ramp sliding block 30 of moving right；Lower inclined plane sliding block 21 is with ball
The twice of the cylinder bulb diameter gradient of 11 rising ball group 38, lower baffle ring 19 moves down the bulb diameter gradient of ball group 38 with respect to lower inclined plane sliding block 21
Twice, is moved to the left the twice of the bulb diameter gradient of ball group 38 and the product of the slope of lower inclined plane sliding block 21 in the horizontal direction.Ensure that
When connecting rod 26 moves up and down, although upper throw-out collar 13 and lower throw-out collar 18 can only promote ramp sliding block 30 and upper baffle ring 29 with
Inclined plane slide block 21 and lower baffle ring 19 to the right or are moved to the left fixed distance, still ensure that the ball energy of the different-diameter in ball cylinder 11
Enough pass through upper baffle ring 29 and lower baffle ring 19 enters lower contact 23, hence into well.
In head shoot operation next time, upper clipping claw 4 blocks ball cylinder 11, keeps it to maintain static, and repeats the above steps
Complete all pitching operations of ball injector.
Claims (5)
1. a kind of staged fracturing of horizontal well is with big gradient scope pitching machine, including：Wall cylinder, top connection, O-ring, upper clipping claw,
Pin, upper snap ring, pin, slanting baffle, torsion spring, lower snap ring, ball cylinder, nut, upper throw-out collar, downslide slotted disk, gliding groove, upper reset bullet
Spring, pin, lower throw-out collar, lower baffle ring, nut to, it is lower inclined plane sliding block, O-ring, lower contact, O-ring, low sleeve, connecting rod, lower multiple
Position spring, upper hopper chute disk, upper baffle ring, ramp sliding block, upper hopper chute, upper sliding sleeve, slide bar, pin, lower claw, retainer ring, fixation
Nut, ball group, O-ring, torsion spring, nut, gasket seal, end cap, bolt；It is characterized in that：Top connection and lower contact and wall cylinder
Thread connection is sealed, and has dismounting hole in top connection and lower contact；Between top connection and upper sliding sleeve, upper sliding sleeve and wall cylinder between, low sleeve
It is that O-ring is sealed between wall cylinder and between low sleeve and lower contact；There is connecting rod thread connection between upper sliding sleeve and low sleeve；On
Radial screw connection between snap ring and top connection, radial screw connection between retainer ring and upper sliding sleeve.
2. a kind of staged fracturing of horizontal well according to claim 1 is with big gradient scope pitching machine, it is characterised in that：
Between upper clipping claw and upper snap ring pin connection, between have torsion spring；Between lower claw and lower snap ring pin connection, between have torsion spring；
Slide bar is connected in retainer ring by fixing nut；Lower snap ring empty set, can be in the spacing all shoulders of slide bar and fixed interannular on slide bar
It is relative to slide；Upper throw-out collar is fastened in connecting rod by nut, and lower throw-out collar empty set, can be in nut group and connecting rod in connecting rod
On spacing all shoulders between relative slide.
3. with big gradient scope pitching machine, its feature exists a kind of staged fracturing of horizontal well according to claim 1-2
In：Upper hopper chute disk and lower contact thread connection, thread connection between upper hopper chute and upper hopper chute disk, ramp sliding block can be between upper hopper chute
It is relative to slide；Downslide slotted disk and ball cylinder thread connection, thread connection between gliding groove and downslide slotted disk, lower inclined plane sliding block can glide
It is relative between groove to slide.
4. with big gradient scope pitching machine, its feature exists a kind of staged fracturing of horizontal well according to claim 1-3
In：Upper throw-out collar and lower throw-out collar can respectively promote ramp sliding block and lower inclined plane sliding block to horizontally slip；Upper baffle ring can be in downslide slotted disk
In chute in it is relative slide, have upper reset spring between upper baffle ring and downslide slotted disk, it is ensured that upper baffle ring presses ramp sliding block, on
Inclined plane slide block presses promotion ring；Lower baffle ring relative in the chute of lower contact can be slided, and have lower multiple between lower baffle ring and lower contact
Position spring, it is ensured that lower baffle ring presses lower inclined plane sliding block, and lower inclined plane sliding block presses lower throw-out collar.
5. with big gradient scope pitching machine, its feature exists a kind of staged fracturing of horizontal well according to claim 1-4
In：Pin couples between slanting baffle and upper baffle ring, can relatively rotate；The groove of slanting baffle upper end can be relative sliding with the pin on ball cylinder
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102758.XA CN106894803A (en) | 2017-02-24 | 2017-02-24 | A kind of staged fracturing of horizontal well is with big gradient scope pitching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102758.XA CN106894803A (en) | 2017-02-24 | 2017-02-24 | A kind of staged fracturing of horizontal well is with big gradient scope pitching machine |
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| Publication Number | Publication Date |
|---|---|
| CN106894803A true CN106894803A (en) | 2017-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710102758.XA Pending CN106894803A (en) | 2017-02-24 | 2017-02-24 | A kind of staged fracturing of horizontal well is with big gradient scope pitching machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
| CN111456679A (en) * | 2020-04-02 | 2020-07-28 | 刘超 | Fracturing ball injector for oil well |
| CN111577233A (en) * | 2020-05-28 | 2020-08-25 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
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| CN201460815U (en) * | 2009-07-20 | 2010-05-12 | 中国石油天然气股份有限公司 | Self-sealing ball injector for normal pressure ball loading |
| CN103939073A (en) * | 2013-01-23 | 2014-07-23 | 中国石油化工股份有限公司 | Pitching device for oil field staged fracturing |
| CN204024621U (en) * | 2014-09-01 | 2014-12-17 | 中国石油集团渤海钻探工程有限公司 | Switch fracturing sliding bush switching tools for horizontal cementing |
| US20170022777A1 (en) * | 2015-03-03 | 2017-01-26 | Stream-Flo Industries Ltd. | Ball Injector For Frac Tree |
| CN106437660A (en) * | 2016-10-13 | 2017-02-22 | 中国石油大学(华东) | Eccentric hole rotary block type automatic ball injector system |
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| US5758726A (en) * | 1996-10-17 | 1998-06-02 | Halliburton Energy Services | Ball drop head with rotating rings |
| CN201460815U (en) * | 2009-07-20 | 2010-05-12 | 中国石油天然气股份有限公司 | Self-sealing ball injector for normal pressure ball loading |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110206521A (en) * | 2019-05-31 | 2019-09-06 | 山东科技大学 | A kind of water filling segmentation of coal seam long drilled holes, which is opened, splits device and method |
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| CN111577233A (en) * | 2020-05-28 | 2020-08-25 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
| CN111577233B (en) * | 2020-05-28 | 2022-03-29 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
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Application publication date: 20170627 |