CN107035340A - A kind of high-strength degradable ball seat - Google Patents
A kind of high-strength degradable ball seat Download PDFInfo
- Publication number
- CN107035340A CN107035340A CN201710267368.8A CN201710267368A CN107035340A CN 107035340 A CN107035340 A CN 107035340A CN 201710267368 A CN201710267368 A CN 201710267368A CN 107035340 A CN107035340 A CN 107035340A
- Authority
- CN
- China
- Prior art keywords
- main part
- ball seat
- contact portion
- degradable
- degradable ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000015556 catabolic process Effects 0.000 claims abstract description 6
- 238000006731 degradation reaction Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000000638 stimulation Effects 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/04—Ball valves
Landscapes
- 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)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of high-strength degradable ball seat, the contact portion that the ball seat is in contact by main part and with spheroid is constituted, pitching passage is coaxially arranged with the contact portion and the main part, contact portion is arranged in main part, and it is located towards pitching side, wherein, main part is made up of degradation material, and the contact portion is combined by several wear-resistant elements and constituted.A kind of high-strength degradable ball seat, it is characterized in that, the contact portion that the ball seat is in contact by main part and with spheroid is constituted, pitching passage is coaxially arranged with the contact portion and the main part, contact portion is arranged in main part, and is located towards pitching side, wherein, main part is made up of degradation material, and the contact portion is combined by several wear-resistant elements and constituted.
Description
Technical field
The present invention relates to oil field compression fracture completion technique field, more particularly to a kind of high-strength degradable ball seat.
Background technology
In wellfracturing rebuilding construction operation, especially during multiple fracturing, the shape for the set that skidded often through pitching
Formula carries out separate zone stimulation since lower layer position to reservoir；Using degradable ball seat after fracturing reform, degradable ball seat is with matching somebody with somebody
Covering the degradable ball used can all degrade, and latus rectum becomes big in flow string, and follow-up various construction operations are not influenceed, saves and uses
Common ball seat needs to bore the construction operation expense removed；During multistage fracturing, the differential very little of size between ball seats at different levels can drop
Solve the strength of materials low, be easy for being rushed big ineffective in fracturing process, very big trouble caused to pressing crack construction, sometimes
Construction can be caused to fail.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of high-strength degradable ball seat.
To achieve the above object, technical scheme is as follows：
A kind of high-strength degradable ball seat, the contact portion that the ball seat is in contact by main part and with spheroid is constituted, described
Pitching passage is coaxially arranged with contact portion and the main part, contact portion is arranged in main part, and positioned at court
To pitching side, wherein, main part is made up of degradation material, and the contact portion is combined by several wear-resistant elements and constituted.
Further, the wear-resistant elements are distributed around the axis of the pitching passage, and gap is left between wear-resistant elements.
Further, the sealing surface of taper is provided with the contact portion.
Further, the contact portion is formed integrally with the main part.
Further, the main part is metal material, degradable in aqueous or chloride ion-containing the aqueous solution.
The degraded ball seat of the present invention is multistage in use, internal diameter size is differential small between ball seat, and erosion resistance ability is strong, pressure break
After end, completed with main part after degraded, internal high intensity part is voluntarily disintegrated to be removed without boring, and is solved with simple degradable material
The low intensity that the ball seat of making is present, erosive wear resistance is poor, it is impossible to which the technical barrier that multistage is used, is multistage fracturing completion technique
The revolution in field.
Brief description of the drawings
Fig. 1 is the schematic diagram of the high-strength degradable ball seat of the present invention；
Fig. 2 is the schematic diagram of the contact portion of numbering 2 in Fig. 1；
Fig. 3 is Fig. 2 top view；
Wherein, 1 main part, 2 contact portions, 2.1 seams, 2.2 sealing surfaces, 2.3 wear-resistant elements, 3 pitching passages.
Embodiment
The present invention is more fully illustrated below with embodiment.The present invention can be presented as a variety of multi-forms,
It is not construed as the exemplary embodiment for being confined to describe here.
For ease of explanation, the space relative terms such as " on ", " under ", "left", "right" can be used herein, are used for
The element or feature shown in explanation figure is relative to another element or the relation of feature.It should be understood that except figure
In outside the orientation that shows, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device be squeezed, be stated as being located at other elements or feature " under " element will be located into other elements or feature " on ".
Therefore, exemplary term " under " can be both comprising upper and lower orientation.Device can be positioned otherwise（It is rotated by 90 ° or position
In other orientation）, can correspondingly be explained used herein of the relative explanation in space.
High-strength degradable ball seat as shown in Figure 1, Figure 2 and Figure 3 is made up of main part 1 and contact portion 2, contact site
Divide in 2 and main part 1 and be coaxially arranged with pitching passage 3, contact portion 2 is arranged in main part 1, and is located towards pitching
The sealing surface 2.2 of taper is provided with side, contact portion 2.
Main part 1 is made up of degradation material, and the degradation material is known metal material, it is aqueous or it is chloride from
It is degradable in the aqueous solution of son.
Contact portion 2 is made up of the combination of several wear-resistant elements 2.3, axis point of the wear-resistant elements 2.3 around pitching passage 3
Seam 2.1 is left between cloth, wear-resistant elements 2.3.
Contact portion 2 is formed integrally with main part 1.
Several preferred embodiments of the application, but the application not limited to this, every ability are only described above in association with accompanying drawing
Domain those of ordinary skill is not in the case where departing from spirit herein, and any improvement and/or deformation made belong to the guarantor of the application
Protect scope.
Claims (5)
1. a kind of high-strength degradable ball seat, it is characterised in that the contact that the ball seat is in contact by main part and with spheroid
Part is constituted, and is coaxially arranged with pitching passage in the contact portion and the main part, contact portion is arranged on main part
On point, and pitching side is located towards, wherein, main part is made up of degradation material, and the contact portion is wear-resisting by several
Unit combination is constituted.
2. degradable ball seat as claimed in claim 1, it is characterised in that axle of the wear-resistant elements around the pitching passage
Line is distributed, and gap is left between wear-resistant elements.
3. degradable ball seat as claimed in claim 1, it is characterised in that the sealing of taper is provided with the contact portion
Face.
4. degradable ball seat as claimed in claim 1, it is characterised in that the contact portion is made one with the main part
Body.
5. degradable ball seat as claimed in claim 1, it is characterised in that the main part is metal material, aqueous or
It is degradable in the aqueous solution of chloride ion-containing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267368.8A CN107035340A (en) | 2017-04-21 | 2017-04-21 | A kind of high-strength degradable ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267368.8A CN107035340A (en) | 2017-04-21 | 2017-04-21 | A kind of high-strength degradable ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107035340A true CN107035340A (en) | 2017-08-11 |
Family
ID=59535630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267368.8A Withdrawn CN107035340A (en) | 2017-04-21 | 2017-04-21 | A kind of high-strength degradable ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035340A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140060813A1 (en) * | 2012-09-06 | 2014-03-06 | Utex Industries, Inc. | Expandable fracture plug seat apparatus |
| CN204371233U (en) * | 2014-12-01 | 2015-06-03 | 中国石油天然气股份有限公司 | A kind of casing fracturing ball seat |
| CN105257244A (en) * | 2015-10-30 | 2016-01-20 | 安东石油技术（集团）有限公司 | Ball seat and ball throwing sliding sleeve |
| CN105298461A (en) * | 2015-11-03 | 2016-02-03 | 东北石油大学 | Full-bore infinite-time soluble-ball-type fracturing sliding sleeve |
| CN105507868A (en) * | 2014-09-26 | 2016-04-20 | 中国石油化工股份有限公司 | Ball seat of ball injection activated sliding sleeve, manufacture method of ball seat and sliding sleeve |
| CN206681708U (en) * | 2017-04-21 | 2017-11-28 | 托普威尔石油技术股份公司 | A kind of high-strength degradable ball seat |
-
2017
- 2017-04-21 CN CN201710267368.8A patent/CN107035340A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140060813A1 (en) * | 2012-09-06 | 2014-03-06 | Utex Industries, Inc. | Expandable fracture plug seat apparatus |
| CN105507868A (en) * | 2014-09-26 | 2016-04-20 | 中国石油化工股份有限公司 | Ball seat of ball injection activated sliding sleeve, manufacture method of ball seat and sliding sleeve |
| CN204371233U (en) * | 2014-12-01 | 2015-06-03 | 中国石油天然气股份有限公司 | A kind of casing fracturing ball seat |
| CN105257244A (en) * | 2015-10-30 | 2016-01-20 | 安东石油技术（集团）有限公司 | Ball seat and ball throwing sliding sleeve |
| CN105298461A (en) * | 2015-11-03 | 2016-02-03 | 东北石油大学 | Full-bore infinite-time soluble-ball-type fracturing sliding sleeve |
| CN206681708U (en) * | 2017-04-21 | 2017-11-28 | 托普威尔石油技术股份公司 | A kind of high-strength degradable ball seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170811 |