CN109113590A - A kind of flexible joint for oil well sand control - Google Patents
A kind of flexible joint for oil well sand control Download PDFInfo
- Publication number
- CN109113590A CN109113590A CN201710491590.6A CN201710491590A CN109113590A CN 109113590 A CN109113590 A CN 109113590A CN 201710491590 A CN201710491590 A CN 201710491590A CN 109113590 A CN109113590 A CN 109113590A
- Authority
- CN
- China
- Prior art keywords
- housing
- connector
- screw
- screen casing
- swing rod
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Abstract
The invention discloses a kind of flexible joint for oil well sand control, including swing rod, anti-rotation groove, anti-turn screw, housing, sealing ring, backing-up screw, connector, the housing and connector are thread connection, swing rod is inserted in housing, anti-turn screw is filled on the coat by screw thread, sealing ring is pressed into the closure gasket groove in housing, and backing-up screw tapping after housing and connector install is packed into, and the clamp device for connecting screen casing is provided with outside connector.The present invention has structure simple, tensile strength is big, curvature is big, good airproof performance, can 360 degree of swings the characteristics of, and, two connectors can be connected as needed using to increase curvature, while the latus rectum of flexible joint can match with the screen casing internal diameter being connect and be used in various measures, and fastening is connect with screen casing, the screen casing of connection can be made effectively to be lowered into design well section, complete construction task.
Description
Technical field
The present invention relates to oilfield engineering device technique field more particularly to a kind of flexible joint for oil well sand control.
Background technique
At present during well construction, some oil wells, such as directional well, hole deviation is larger, these oil wells in sand control process,
The flexibility of sand-proof pipe is less than oil pipe, causes to generate pipe clamp during down tube or makes not in place under tool, affects normal
Oil well operation construction and the application of sand control screen.
Summary of the invention
In view of the foregoing drawbacks or insufficient, the purpose of the present invention is to provide a kind of flexible joint for oil well sand control.
The technical solution of the present invention is as follows:
Including swing rod, anti-rotation groove, anti-turn screw, housing, sealing ring, backing-up screw, connector, the housing and connector are spiral shell
Line connection, swing rod are inserted in housing, and anti-turn screw is filled on the coat by screw thread, and sealing ring is pressed into the closure gasket groove in housing
Interior, backing-up screw tapping after housing and connector install is packed into, and the clamp device for connecting screen casing is provided with outside connector.
The housing is to be flexibly connected with swing rod, and anti-turn screw tooling is on the coat.
The swing rod is identical as connector internal diameter, and identical as connected screen casing internal diameter.
The invention has the benefit that
The present invention have structure it is simple, tensile strength is big, and curvature is big, good airproof performance, can 360 degree of swings the characteristics of,
Also, two connectors can be connected as needed using to increase curvature, at the same the latus rectum of flexible joint can in the screen casing being connect
Diameter, which matches, is used in various measures, and fastening is connect with screen casing, and the screen casing of connection can be made effectively to be lowered into design well section, complete
At construction task.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment:
The present invention will be described in detail with reference to the accompanying drawing.
As shown in Figure 1, the present invention provides a kind of sand control connector, including it is swing rod 1, anti-rotation groove 2, anti-turn screw 3, outer
4, sealing ring 5, backing-up screw 6, connector 7 are covered, the housing 4 and connector 7 are thread connection, and swing rod 1 is inserted in housing 4, anti-rotation
Through screw thread on the housing 4, sealing ring 5 is pressed into the closure gasket groove in housing 4 screw 3, backing-up screw 6 housing 4 with connect
First 7, which install rear tapping, is packed into, and the clamp device for connecting screen casing is provided with outside connector 7.The housing 4 is activity with swing rod 1
Connection, anti-turn screw tooling is on housing 4.The swing rod 1 is identical as 7 internal diameter of connector, and identical as connected screen casing internal diameter.
When operating, after this connector and screen casing being installed, by transmitting G.I.H together, due to the variable song of connector
Property, the screen casing of multiple connections is lowered into design position along hole deviation, realizes the purpose of construction.
Claims (3)
1. a kind of sand control connector, which is characterized in that including swing rod (1), anti-rotation groove (2), anti-turn screw (3), housing (4),
Sealing ring (5), backing-up screw (6), connector (7), the housing (4) and connector (7) are thread connection, and swing rod (1) is inserted in housing
(4) in, through screw thread on housing (4), sealing ring (5) is pressed into the closure gasket groove in housing (4) anti-turn screw (3), is prevented
Loose screw (6) installs rear tapping in housing (4) and connector (7) and is packed into, and the fastening dress for connecting screen casing is provided with outside connector (7)
It sets.
2. sand control connector according to claim 1, which is characterized in that the housing (4) is that activity connects with swing rod (1)
It connects, anti-turn screw tooling is on housing (4).
3. sand control connector according to claim 1, which is characterized in that the swing rod (1) and connector (7) internal diameter phase
Together, and it is identical as connected screen casing internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710491590.6A CN109113590A (en) | 2017-06-25 | 2017-06-25 | A kind of flexible joint for oil well sand control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710491590.6A CN109113590A (en) | 2017-06-25 | 2017-06-25 | A kind of flexible joint for oil well sand control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109113590A true CN109113590A (en) | 2019-01-01 |
Family
ID=64733857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710491590.6A Pending CN109113590A (en) | 2017-06-25 | 2017-06-25 | A kind of flexible joint for oil well sand control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109113590A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915086A (en) * | 2019-04-08 | 2019-06-21 | 海油来博(天津)科技股份有限公司 | A kind of segmented flexibility sand control screen |
| CN109989732A (en) * | 2019-03-25 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of flexibility screen casing and sand control completion tubing string and its application method |
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
-
2017
- 2017-06-25 CN CN201710491590.6A patent/CN109113590A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989732A (en) * | 2019-03-25 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of flexibility screen casing and sand control completion tubing string and its application method |
| CN109915086A (en) * | 2019-04-08 | 2019-06-21 | 海油来博(天津)科技股份有限公司 | A kind of segmented flexibility sand control screen |
| CN109915086B (en) * | 2019-04-08 | 2023-09-26 | 海油来博(天津)科技股份有限公司 | Sectional type flexible sand control screen pipe |
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190101 |
|
| WD01 | Invention patent application deemed withdrawn after publication |