CN107091077B - Multifunctional well mouth automatic ball injection device - Google Patents
Multifunctional well mouth automatic ball injection device Download PDFInfo
- Publication number
- CN107091077B CN107091077B CN201710493192.8A CN201710493192A CN107091077B CN 107091077 B CN107091077 B CN 107091077B CN 201710493192 A CN201710493192 A CN 201710493192A CN 107091077 B CN107091077 B CN 107091077B
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- base body
- rotary disk
- rotary table
- hole
- connecting rod
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- 238000002347 injection Methods 0.000 title description 3
- 239000007924 injection Substances 0.000 title description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000191291 Abies alba Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
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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- 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
A multifunctional automatic ball throwing device for well mouth is composed of a base body with a rotary disk on its top, a ratchet wheel at the center of said rotary disk, a steel ball hole on said rotary disk, a guide tube on said base body, a channel at the bottom of base body, a drive unit for driving said rotary disk to rotate, a solid part on said rotary disk and a steel ball channel on said base body, and a hydraulic cylinder for driving said push rod to move on said ratchet wheel, a locating pin rotating out from the locating hole on said rotary disk, a piston rod moving to right and a push rod rotating by 45 deg. to make the steel ball hole on said rotary disk and channel on said base body align, and the steel ball falling into well via said guide tube.
Description
Technical Field
The invention relates to the technical field of horizontal well fracturing wellhead devices, in particular to a multifunctional wellhead automatic ball throwing device.
Background
In recent years, with the domestic large-scale application of the staged fracturing technology of the horizontal well, the fracturing modification technology of the horizontal well with the low-permeability reservoir makes a major breakthrough, and the development efficiency and recovery efficiency of the shale gas are greatly improved. The staged fracturing well head not only bears the functions of large-displacement fracturing construction, well control and the like, but also is closely related to the safety of equipment and constructors. However, at present, the special fracturing high-pressure wellhead tool matched with the domestic horizontal well staged fracturing technology is mainly operated manually, and has great potential safety hazards and defects in the field implementation process, which are specifically shown in the following aspects: two constructors are required to switch the valve on and off under pressure at a wellhead, the matching difficulty is high, the operation is complicated, the labor intensity is high, the reliability is low, and safety accidents are easily caused; the domestic ball injector has a complex structure and low ball control precision, can not inject balls continuously, reduces the working efficiency of fracturing, has limited ball injection number, and can not perform multi-section fracturing.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the multifunctional wellhead automatic ball-throwing device which has the characteristics of simple structure, continuous ball throwing, high working efficiency and multi-section fracturing.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an automatic bowling device of multi-functional well head, includes base member 2, is provided with carousel 4 on 2 upper portions of base member, 4 central point of carousel put and to be provided with ratchet 5, encircle ratchet 5 and be provided with the hole of placing steel ball 3 on carousel 4, base member 2 on open and to have stand pipe 1, carousel 4 can align hole and stand pipe 1 through the rotation, is provided with the passageway in 2 bottoms of base member, 1 bottoms of stand pipe are linked together with the passageway, carousel 4 drive its rotation through drive arrangement.
Eight holes are equally arranged on the rotating disc 4, wherein one hole is a solid hole.
The driving device comprises a push rod 9 connected with the turntable 4, the push rod 9 is connected with a connecting rod 10 through a double-hinge rod 15 and a return spring 8, the connecting rod 10 is rigidly connected with a positioning pin 11, the connecting rod 10 is connected with a rotating shaft 12 assembled on the base body 2, and the connecting rod 10 is driven through a hydraulic cylinder 14.
The upper end of the base body 2 is provided with a top cover 7, and the turntable 4 is assembled between the base body 2 and the top cover 7 through an upper thrust ball bearing and a lower thrust ball bearing 6.
The invention has the beneficial effects that:
the invention adopts the ratchet wheel and the connecting rod mechanical mechanism to rotate the turntable, can control continuous ball throwing, is simple and reliable, adopts the turntable to drive the steel ball to rotate, enables the steel ball to reach the designated throwing position to be automatically thrown, does not need to throw the steel ball by controlling the diameter of the steel ball, expands the application range of the ball thrower, improves the ball control precision, can carry out continuous and repeated ball throwing under the condition of not stopping the wellhead fracturing equipment, and simultaneously can reduce the fracturing production cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Detailed Description
The construction and operation of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a guide tube 1 is aligned with a steel ball 3 channel on a base body 2 and is connected to the left side of the base body 2 through a screw, a rotary table 4 with a ratchet wheel 5 at the upper part is assembled between the base body 2 and a top cover 7 through an upper thrust ball bearing and a lower thrust ball bearing 6, the top cover 7 is connected with the base body 2 through a bolt, a push rod 9 is connected with a connecting rod 10 through a double-hinge rod 15 and a return spring 8, the connecting rod 10 is in rigid connection with a positioning pin 11, the connecting rod 10 is connected with a rotating shaft 12 assembled on the base body 2, a right end cover 13 is connected with the base body 2 and the top cover 7 through a bolt, a hydraulic cylinder 14 is assembled on the base body 2, and a piston rod of the hydraulic cylinder 14 is connected with the connecting rod 10 through a sliding groove.
The hydraulic cylinder 14 can realize a control process, and has a simple structure and easy operation.
Can realize remote control, be favorable to well head automated production, improve the security of fracturing construction.
The working principle of the invention is as follows:
(1) Installation: the ball injector is arranged on a hydraulic control plug valve of a wellhead fracturing Christmas tree.
(2) Ball loading: when the balls are loaded, the top cover 7 is opened, the solid part without holes on the turntable 4 is aligned with the steel ball channel on the base body 2, then the steel balls 3 are sequentially loaded in 7 holes of the turntable 4 from small to large in the clockwise direction, and the top cover 7 is covered after the process is finished.
(3) Pitching: opening a hydraulic control plug valve on a wellhead fracturing Christmas tree, moving a piston rod of a hydraulic cylinder 14 to the right to push a connecting rod 10 to rotate anticlockwise around a rotating shaft 12, enabling a push rod 9 to move towards one side of a ratchet wheel 5 through a double-hinged rod 15 by the connecting rod 10, rotating a positioning pin 11 out of a positioning hole in a rotary disc 4 when the push rod 9 moves onto the ratchet wheel 5, continuously moving the piston rod of the hydraulic cylinder 14 to the right, pushing the ratchet wheel 5 by the push rod 9 to rotate by an angle of 45 degrees, enabling a hole provided with a steel ball 3 on the rotary disc 4 to be aligned with a channel on a base body 2, and enabling the steel ball 3 to freely fall into a well through a guide pipe 1.
(4) And (5) finishing pitching: after the ball is thrown, the piston rod of the hydraulic cylinder returns to the initial position leftwards, the connecting rod 10 and the double-hinged rod 15 are reset, the push rod 9 is reset under the action of the reset spring 8, and the next ball throwing operation is prepared.
Claims (1)
1. The multifunctional wellhead automatic ball throwing device comprises a base body (2) and is characterized in that a rotary table (4) is arranged on the upper portion of the base body (2), a ratchet wheel (5) is arranged at the central position of the rotary table (4), a hole for placing a steel ball (3) is formed in the rotary table (4) in a surrounding mode around the ratchet wheel (5), a guide pipe (1) is arranged on the base body (2), the rotary table (4) can align the hole with the guide pipe (1) through rotation, a channel is arranged at the bottom of the base body (2), the bottom of the guide pipe (1) is communicated with the channel, and the rotary table (4) is driven to rotate through a driving device;
eight holes are equally distributed on the rotary table (4), wherein one hole is a solid hole;
the driving device comprises a push rod (9) connected with the turntable (4), the push rod (9) is connected with a connecting rod (10) through a double-hinged rod (15) and a return spring (8), the connecting rod (10) is rigidly connected with a positioning pin (11), the connecting rod (10) is connected with a rotating shaft (12) assembled on the base body (2), and the connecting rod (10) is driven through a hydraulic cylinder (14);
base member (2) upper end install top cap (7), carousel (4) through two upper and lower thrust ball bearing (6) assembly between base member (2) and top cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493192.8A CN107091077B (en) | 2017-06-26 | 2017-06-26 | Multifunctional well mouth automatic ball injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493192.8A CN107091077B (en) | 2017-06-26 | 2017-06-26 | Multifunctional well mouth automatic ball injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091077A CN107091077A (en) | 2017-08-25 |
| CN107091077B true CN107091077B (en) | 2023-02-28 |
Family
ID=59641175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493192.8A Active CN107091077B (en) | 2017-06-26 | 2017-06-26 | Multifunctional well mouth automatic ball injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091077B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476795B (en) * | 2017-10-17 | 2023-06-27 | 西南石油大学 | Self-ordering multistage hydraulic control fracturing ball injection device |
| CN109707361A (en) * | 2019-01-07 | 2019-05-03 | 中国石油大学(华东) | A kind of densification oil-gas reservoir rotating disc type well head automatic ball-throwing equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672975A (en) * | 2016-03-15 | 2016-06-15 | 中国石油大学(华东) | Automatic ball injector for segmented fracture of well mouth of horizontal well |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9010413B2 (en) * | 2012-12-19 | 2015-04-21 | Oil States Energy Services, L.L.C. | Ball drop wellhead control apparatus |
-
2017
- 2017-06-26 CN CN201710493192.8A patent/CN107091077B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672975A (en) * | 2016-03-15 | 2016-06-15 | 中国石油大学(华东) | Automatic ball injector for segmented fracture of well mouth of horizontal well |
Non-Patent Citations (1)
| Title |
|---|
| 分段压裂远程控制多级投球装置研制;张建等;《新技术新工艺》;20170125(第01期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN107091077A (en) | 2017-08-25 |
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