CN202745794U - Multifunctional ball seat with temporary blocking performance for well-completion operation of water injection well - Google Patents
Multifunctional ball seat with temporary blocking performance for well-completion operation of water injection well Download PDFInfo
- Publication number
- CN202745794U CN202745794U CN 201220320984 CN201220320984U CN202745794U CN 202745794 U CN202745794 U CN 202745794U CN 201220320984 CN201220320984 CN 201220320984 CN 201220320984 U CN201220320984 U CN 201220320984U CN 202745794 U CN202745794 U CN 202745794U
- Authority
- CN
- China
- Prior art keywords
- ball seat
- well
- water injection
- baffle plate
- temporary blocking
- 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 - Fee Related
Links
Images
Abstract
The utility model discloses a multifunctional ball seat with temporary blocking performance for a well-completion operation of a water injection well. The multifunctional ball seat is designed for fulfilling the aims that the well-completion operation of the water injection well meets safe and environment-friendliness requirements, a packer is prevented from being set in advance and the working success rate is improved. The inner wall of the upper part of the multifunctional ball seat is connected with a ball seat baffle plate by a thread; and an axial through hole is formed in the ball seat baffle plate and is blocked by a soluble temporary blocking agent. When in operation, the multifunctional ball seat can go into a well along with a well-completion tubular column, so that safe and environment-friendliness construction can be achieved as the ball seat baffle plate is temporarily blocked and a liquid column is not available in an oil pipe, and the risk of packer setting caused by overhigh speed during well-down process can be effectively reduced; and the tubular column is down to a set position, and normal well-completion operation can be achieved after the soluble temporary blocking agent is dissolved. The tool is ingenious in conception, simple in design, safe and reliable to use, and can avoid the phenomenon of gas locking of the oil pipe caused by blocking a pin nail and a choke plug.
Description
Technical field
The utility model relates to a kind of temporarily stifled multi-functional ball seat of property for the water injection well completion practice, belongs to the oilfield exploitation technical field.
Background technology
At present, there are some technical problems in the water injection well in oil fields completion practice, such as: well head returns in a large number water, can't reach the safety and environmental protection requirement, phenomenon etc. occurs setting in packer is gone into the well process, and these problems easily cause down-hole accident, reduces job success ratio.
Summary of the invention
The purpose of this utility model is to provide a kind of temporarily stifled multi-functional ball seat of property for the water injection well completion practice, and its ball seat baffle plate when entering well is realized the safety and environmental protection construction by temporary shutoff, reduces simultaneously the risk of packer premature setting.
Concrete technical scheme of the present utility model is as follows:
This multi-functional ball seat upper inside wall ball seat baffle plate that is threaded, the ball seat baffle plate is provided with axially extending bore, and axially extending bore is by the shutoff of solubility diverting agent.
During work, the multi-functional ball seat of the utility model enters well with completion tubular column, and because of the temporary transient shutoff of ball seat baffle plate quilt, oil pipe is interior without fluid column, thereby can realize the safety and environmental protection construction, can effectively reduce the risk of the packer setting that causes because of excessive velocities in the process of going into the well simultaneously.Behind design attitude, after dissolving, the solubility diverting agent can realize normal completion practice under the tubing string.This instrument is skillfully constructed, and simplicity of design is safe and reliable, can avoid the oil pipe gas lock phenomenon that is caused by pin and plug shutoff.
Description of drawings
Fig. 1 is for being used for the temporarily stifled multi-functional ball seat schematic diagram of property of water injection well completion practice.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
After this multi-functional ball seat 3 enters well, if medicament does not dissolve at the appointed time, can adopt the method for suppressing 5～10MPa in the oil pipe that solubility diverting agent 2 is destroyed.
This multi-functional ball seat 3 can be realized the temporary transient shutoff oil pipe of water injection well completion practice " half is with pressure " operation, prevent that formation water from revealing from oil pipe, good operating environment is provided, improve Safety and Environmental Protection, effectively reduce the risk of packer premature setting, improve the safety that packer is gone into the well.
Claims (1)
1. temporarily stifled multi-functional ball seat of property that is used for the water injection well completion practice is characterized in that:
This multi-functional ball seat (3) upper inside wall ball seat baffle plate (1) that is threaded, ball seat baffle plate (1) is provided with axially extending bore, and axially extending bore is by solubility diverting agent (2) shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320984 CN202745794U (en) | 2012-07-04 | 2012-07-04 | Multifunctional ball seat with temporary blocking performance for well-completion operation of water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320984 CN202745794U (en) | 2012-07-04 | 2012-07-04 | Multifunctional ball seat with temporary blocking performance for well-completion operation of water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745794U true CN202745794U (en) | 2013-02-20 |
Family
ID=47705211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320984 Expired - Fee Related CN202745794U (en) | 2012-07-04 | 2012-07-04 | Multifunctional ball seat with temporary blocking performance for well-completion operation of water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745794U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563984A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气股份有限公司 | Thick-layer multi-section separate-layer water injection technical pipe column for water injection well |
| CN105986799A (en) * | 2015-02-28 | 2016-10-05 | 中国石油天然气股份有限公司 | Ball seat packing multi-cluster perforation fracturing pipe string and construction method |
| CN113252466A (en) * | 2021-05-25 | 2021-08-13 | 中石化石油工程技术服务有限公司 | High-temperature-resistant pressure-bearing test device and method for soluble ball seat |
-
2012
- 2012-07-04 CN CN 201220320984 patent/CN202745794U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563984A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气股份有限公司 | Thick-layer multi-section separate-layer water injection technical pipe column for water injection well |
| CN105986799A (en) * | 2015-02-28 | 2016-10-05 | 中国石油天然气股份有限公司 | Ball seat packing multi-cluster perforation fracturing pipe string and construction method |
| CN105986799B (en) * | 2015-02-28 | 2019-02-15 | 中国石油天然气股份有限公司 | Ball seat insulates more cluster perforating and fracturing tubing strings and construction method |
| CN113252466A (en) * | 2021-05-25 | 2021-08-13 | 中石化石油工程技术服务有限公司 | High-temperature-resistant pressure-bearing test device and method for soluble ball seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202745794U (en) | Multifunctional ball seat with temporary blocking performance for well-completion operation of water injection well | |
| CN202645454U (en) | Straddle test caber perforation combination string | |
| CN101929317A (en) | Undersize-hole oil pipe plugging device | |
| CN205063914U (en) | Perforation, sand control, lose rifle integration completion pipe string | |
| CN104278979A (en) | Coiled tubing perforation bridge plug sealing, separating and fracturing method | |
| CN201262045Y (en) | Hydraulic back-off sub used for oil well water block | |
| CN202531042U (en) | Bottom drilling tool combined structure used for coiled tubing drilling or boring <0} | |
| CN103321600A (en) | Hydraulically started back-off releasing mechanism | |
| CN205063848U (en) | Sliding sleeve formula safety joint | |
| CN202970472U (en) | Expansion pipe locating whipstock | |
| CN202228029U (en) | Sand bailer for down-hole operation of oil field | |
| CN2893127Y (en) | Hydraulic safety joint | |
| CN201024988Y (en) | An overflow leakage flowing ball base | |
| CN204238902U (en) | A kind of down-hole bypass ball-and-seat | |
| CN101446188B (en) | Single upper seal sand blasting perforation fracturing technology | |
| CN203321405U (en) | Sucker rod blowout preventer | |
| CN203570206U (en) | End pressure-bearing type rock bolt reamer | |
| CN101949272A (en) | Method for performing workover on oil and gas wells by using chemical gel | |
| CN204311984U (en) | Temporary water blockoff power pipe nipple | |
| CN205858210U (en) | Blender at the bottom of a kind of blowout prevention drilling rod hole | |
| CN105370230A (en) | Releasing tool | |
| CN202866701U (en) | Releasing tool used for releasing tubular column | |
| CN203296730U (en) | Hydraulic-starting buckling and releasing mechanism | |
| CN206722758U (en) | A kind of underground for probing water drains lever apparatus | |
| CN203702247U (en) | Rapid plugging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |