CN204283336U - A kind of laterally opened ball-and-seat - Google Patents
A kind of laterally opened ball-and-seat Download PDFInfo
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- CN204283336U CN204283336U CN201420729843.0U CN201420729843U CN204283336U CN 204283336 U CN204283336 U CN 204283336U CN 201420729843 U CN201420729843 U CN 201420729843U CN 204283336 U CN204283336 U CN 204283336U
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- main body
- flow channel
- single flow
- central tube
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Abstract
Laterally opened ball-and-seat relates to a field of oil field oil extraction downhole tool used, particularly relates to a kind of ball-and-seat.Valve body is by upper main body (2), lower main body (3) and central tube (4) are formed, the sidewall of upper main body (2) is provided with some single flow channel (5), the top of single flow channel (5) is communicated with in the tube chamber of interior side opening with upper main body (2), the lower port place of single flow channel (5) is provided with pressure cap (6), steel ball (7) is provided with in single flow channel (5), lower main body (3) ring-side wall is provided with the annular being opened on lower main body (3) upper surface and crosses chute (8), cross bottom and the ft connection of chute (8), central tube (4) is bolted in the inside of main body (2) and lower main body (3).Valve body adopts fabricated structure, and processing technology is simple, safeguards simple and convenient, can effectively reduce product cost.Single flow channel quantity adjusts as required.
Description
Technical field
The utility model relates to field of oil field oil extraction downhole tool used, particularly relates to a kind of ball-and-seat.
Background technology
In oil well production process, some oil reservoir meeting High water cut, must use packer that water exit interval is separated, not stay fluid course at this interval, but to pay interval, then must reserve fluid course on tubing string on pumping pipe string.Tubing string can be made again but this passage must pressurize in tubing string to form a closed system during releasing packer, therefore on the tubing string corresponding to pay interval, a ball-and-seat must be installed.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of laterally opened ball-and-seat, and this valve cuts out higher than during pipe external pressure when pressure in tubing string, when pipe external pressure is then opened higher than during overpressure, well liquid thus can be made to realize one-way flow.
Technical solution of the present utility model is: it comprises the valve body that two ends are provided with joint, described valve body is by the upper main body being tubulose, lower main body and central tube are formed, the sidewall of upper main body is provided with some single flow channel, the top of single flow channel is communicated with in the tube chamber of interior side opening with upper main body, the lower ending opening of single flow channel is in the lower surface of upper main body, and the lower port place of single flow channel is provided with the pressure cap that internal diameter is less than single flow channel, be provided with in single flow channel and form the steel ball of one way valve for matching with pressure cap, lower main ring sidewall is provided with the annular being opened on lower main body upper surface and crosses chute, this bottom crossing chute is in outer openings and ft connection, central tube is bolted in the inside of main body and lower main body, and both upper and lower sides are connected, the single flow channel of main body is communicated with the chute of crossing of lower main body.
Technique effect of the present utility model is: the while that this valve being connected to and tubing string can make well liquid realize one-way flow, still retain the vertical passage in tubing string, thus can multistagely use in multiple zone well, starting pressure and liquid flowing resistance little, and structure simple production cost is low.Valve body adopts fabricated structure, and processing technology is simple, safeguards simple and convenient, can effectively reduce product cost.Single flow channel quantity needs adjustment according to flow.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, it comprises the valve body that two ends are provided with joint 1, described valve body is by the upper main body 2 being tubulose, lower main body 3 and central tube 4 are formed, the sidewall of upper main body 2 is provided with some single flow channel 5, the top of single flow channel 5 is communicated with in the tube chamber of interior side opening with upper main body 2, the lower ending opening of single flow channel 5 is in the lower surface of upper main body 2, and the lower port place of single flow channel 5 is provided with the pressure cap 6 that internal diameter is less than single flow channel 5, be provided with in single flow channel 5 and form the steel ball 7 of one way valve for matching with pressure cap 6, lower main body 3 ring-side wall is provided with the annular being opened on lower main body 3 upper surface and crosses chute 8, this bottom crossing chute 8 is in outer openings and ft connection, central tube 4 is bolted in the inside of main body 2 and lower main body 3, and both upper and lower sides are connected, the single flow channel 5 of main body 2 is communicated with the chute 8 of crossing of lower main body 3.
Between described upper main body 2 and central tube 4, be all tightly connected by seal 9 between lower main body 3 and central tube 4 and between pressure cap 6 and upper main body 2.
When reality uses, this valve is connected on tubing string and goes into the well corresponding on the position of pay interval.When suppressing releasing packer in tubing string, steel ball drops on pressure cap, seals the centre bore of pressure cap, makes tubing string become a closed system.When oil well drops into oil recovery production, because pipe external pressure is higher than overpressure when the time comes, steel ball is up under this pressure reduction, and well liquid just enters from the circumferential inlet opening of lower main body, enters in tubing string, extracted out by oil well pump through the centre bore of pressure cap and the circumferential hole of upper main body.
Claims (2)
1. a laterally opened ball-and-seat, comprise the valve body that two ends are provided with joint (1), it is characterized in that, described valve body is by the upper main body (2) being tubulose, lower main body (3) and central tube (4) are formed, the sidewall of upper main body (2) is provided with some single flow channel (5), the top of single flow channel (5) is communicated with in the tube chamber of interior side opening with upper main body (2), the lower ending opening of single flow channel (5) is in the lower surface of upper main body (2), and the lower port place of single flow channel (5) is provided with the pressure cap (6) that internal diameter is less than single flow channel (5), be provided with for the steel ball (7) forming one way valve that matches with pressure cap (6) in single flow channel (5), lower main body (3) ring-side wall is provided with the annular being opened on lower main body (3) upper surface and crosses chute (8), this bottom crossing chute (8) is in outer openings and ft connection, central tube (4) is bolted in the inside of main body (2) and lower main body (3), and both upper and lower sides are connected, the single flow channel of main body (2) (5) is communicated with the chute (8) of crossing of lower main body (3).
2. laterally opened ball-and-seat as claimed in claim 1, it is characterized in that, between described upper main body (2) and central tube (4), be all tightly connected by seal (9) between lower main body (3) and central tube (4) and between pressure cap (6) and upper main body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729843.0U CN204283336U (en) | 2014-11-29 | 2014-11-29 | A kind of laterally opened ball-and-seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729843.0U CN204283336U (en) | 2014-11-29 | 2014-11-29 | A kind of laterally opened ball-and-seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283336U true CN204283336U (en) | 2015-04-22 |
Family
ID=52866511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729843.0U Active CN204283336U (en) | 2014-11-29 | 2014-11-29 | A kind of laterally opened ball-and-seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812497A (en) * | 2017-02-20 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of annular space ball-and-seat |
-
2014
- 2014-11-29 CN CN201420729843.0U patent/CN204283336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812497A (en) * | 2017-02-20 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of annular space ball-and-seat |
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| GR01 | Patent grant |