CN202039830U - Ball injector for acid fracturing well head - Google Patents
Ball injector for acid fracturing well head Download PDFInfo
- Publication number
- CN202039830U CN202039830U CN2011201177299U CN201120117729U CN202039830U CN 202039830 U CN202039830 U CN 202039830U CN 2011201177299 U CN2011201177299 U CN 2011201177299U CN 201120117729 U CN201120117729 U CN 201120117729U CN 202039830 U CN202039830 U CN 202039830U
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- CN
- China
- Prior art keywords
- acid fracturing
- well head
- ball
- fracturing well
- tube section
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a ball injector for an acid fracturing well head, which comprises a Y-shaped three-way pipe joint which is formed by communicating a straight pipe segment and an inclined pipe segment, wherein the two ends of the straight pipe segment are respectively provided with an upper oil pipe joint for being connected with a high pressure pipeline and a lower oil pipe joint for being connected with the acid fracturing well head; a ball injecting passageway is arranged in the inclined pipe segment in the axial direction; and a ball injecting switch is arranged at an entrance of the inclined pipe segment in a sealing manner. The ball injector for the acid fracturing well head disclosed by the utility model adopts the three-way pipe joint structure, has the advantages of simple structure and low manufacture cost and is convenient to install and use; the ball injection for the acid fracturing well head can be finished within three minutes; the ball injection operation is simplified; the operation efficiency is improved; and meanwhile, the inflow liquid overflow is convenient to control and recycle and the pollution is reduced.
Description
Technical field
The utility model belongs to oil field prospecting development technique field, and definite saying so relates to a kind of well head ball-throwing apparatus that is used for pitching in the acid fracturing construction operation.
Background technology
The acid fracturing construction operation is that oil-water well increases the major measure that oil is gone up product.At present, Henan Oil Field has entered development late stage, and stratum energy reduces year by year, and large quantities of oil-water wells need be by the fracture acidizing operation to realize that increasing oil goes up the purpose of producing.In recent years, acid fracturing every year all about 300 mouthfuls of wells time, acid fracturing 305 wells in 2007 for example, acid fracturing 287 wells in 2008, acid fracturing 302 wells in 2009.Existing acid fracturing operation all needs first closing well release when pitching, dismantle high pressure line then, treats after working fluid overflow residual in the high pressure line finishes ball to be put into concentric reducer, and then connects high pressure line, carries out the acid fracturing construction after the pitching.According to designing requirement, when the separate layer acid treatment pressure break, need throw 2-4 time ball, just can reach the purpose of separate layer acid treatment pressure break, dismounting high pressure line and switch high-pressure valve that like this will be repeatedly, each pitching operation needs 10-15 minute, and the overflow of working fluid is difficult to control, has not only caused the waste of working fluid, but also can pollute surrounding enviroment, also increased the security risk in the construction operation simultaneously.
The utility model content
The purpose of this utility model is: provide a kind of acid fracturing well head ball-throwing apparatus, to solve the problem that the pitching operation comparatively bothers, the engineering time is long in the existing acid fracturing construction.
The technical solution of the utility model is: a kind of acid fracturing well head ball-throwing apparatus, comprise a y-shaped tee pipe coupling that constitutes by straight length and the connection of inclined tube section one, the two ends of straight length be respectively arranged be used to connect high pressure line on oil connection and the following oil connection that is used to be connected the acid fracturing well head, in the inclined tube section, axially offer the pitching passage, be provided with the pitching switch in the sealing of the entrance of inclined tube section.
Described pitching switch comprises the union of spinning on the outer wall of the entrance of inclined tube section, is equipped with plug by the nut sealing of spinning on the union outer wall in the collar extension of union, is provided with sealing ring between the fitting face of plug and union.
The length of described straight length is 210mm, the identical 45mm that is of internal diameter of described straight length and inclined tube section, and the angle between the axis of described inclined tube section and the axis of straight length is 60 °.
Acid fracturing well head ball-throwing apparatus of the present utility model adopts the T joint header structure, it is simple in structure, cost of production is very low, and it is easy to install, can finish the pitching of acid fracturing well head in 3 minutes, simplified the pitching operation, improved operating efficiency, working fluid overflow simultaneously is convenient to control and is reclaimed, and has reduced pollution.
Description of drawings
Fig. 1 is the structural representation of acid fracturing well head of the present utility model with the ball-throwing apparatus specific embodiment.
The specific embodiment
The specific embodiment of acid fracturing well head usefulness ball-throwing apparatus of the present utility model as shown in Figure 1, it comprises a hollow straight length 1, the two ends of this hollow straight length 1 are respectively arranged with the last oil connection 3 and the following oil connection 4 that is used to be connected the acid fracturing well head that is used to connect high pressure line, on the sidewall of straight length 1, be communicated with and be provided with integrative-structure, acclivitous inclined tube section 2, in inclined tube section 2, be axially arranged with the pitching passage that is communicated with straight length 1, wherein, the length of straight length 1 is 210mm, the identical 45mm that is of pitching passage internal diameter of the internal diameter of straight length 1 and inclined tube section 2, the angle between the axis of the axis of inclined tube section 2 and straight length 1 is 60 °.Be provided with the pitching switch in the sealing of the entrance of inclined tube section 2, this pitching switch comprises the union 5 of spinning on the outer wall of the entrance of inclined tube section 2, be equipped with plug 6 by nut 7 sealings of spinning on union 5 outer walls in the collar extension of union 5, between the fitting face of plug 6 and union 5, be provided with sealing ring 8.
Before the acid fracturing construction, at first this acid fracturing well head ball-throwing apparatus is installed between high pressure line and the acid fracturing well head by upper and lower oil connection, at this moment, the pitching switch is in closed condition.When the needs pitching, at first close the well head main valve, open the pressure release valve door again and put pressure, after having discharged, the pipe internal pressure opens the pitching of pitching switch, after closing the pitching switch, open head valve, finish the pitching operation.Aforesaid operations can be finished in 3 minutes, and need not dismantle high pressure line during the acid fracturing operation, had improved pitching efficient, had simplified the operation of pitching operation, and the overflow of working fluid simultaneously is convenient to control and is reclaimed, and has reduced the pollution to surrounding enviroment.
Claims (3)
1. acid fracturing well head ball-throwing apparatus, it is characterized in that, comprise a y-shaped tee pipe coupling that constitutes by straight length and the connection of inclined tube section one, be respectively arranged with oil connection and following oil connection at the two ends of straight length, in the inclined tube section, axially offer the pitching passage, be provided with the pitching switch in the sealing of the entrance of inclined tube section.
2. acid fracturing well head ball-throwing apparatus according to claim 1, it is characterized in that, described pitching switch comprises the union of spinning on the outer wall of the entrance of inclined tube section, be equipped with plug by the nut sealing of spinning on the union outer wall in the collar extension of union, between the fitting face of plug and union, be provided with sealing ring.
3. acid fracturing well head ball-throwing apparatus according to claim 1 and 2, it is characterized in that, the length of described straight length is 210mm, the identical 45mm that is of internal diameter of described straight length and inclined tube section, and the angle between the axis of described inclined tube section and the axis of straight length is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201177299U CN202039830U (en) | 2011-04-20 | 2011-04-20 | Ball injector for acid fracturing well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201177299U CN202039830U (en) | 2011-04-20 | 2011-04-20 | Ball injector for acid fracturing well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039830U true CN202039830U (en) | 2011-11-16 |
Family
ID=44967279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201177299U Expired - Lifetime CN202039830U (en) | 2011-04-20 | 2011-04-20 | Ball injector for acid fracturing well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703735A (en) * | 2016-11-28 | 2017-05-24 | 中国石油天然气股份有限公司 | Well mouth ball pitching device |
| CN108468521A (en) * | 2018-04-27 | 2018-08-31 | 中国石油天然气集团有限公司 | Continuous pipe pitching auxiliary tool, pitching mechanism and pitching method |
-
2011
- 2011-04-20 CN CN2011201177299U patent/CN202039830U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703735A (en) * | 2016-11-28 | 2017-05-24 | 中国石油天然气股份有限公司 | Well mouth ball pitching device |
| CN108468521A (en) * | 2018-04-27 | 2018-08-31 | 中国石油天然气集团有限公司 | Continuous pipe pitching auxiliary tool, pitching mechanism and pitching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |