CN2628715Y - Recoverable antitheft well surface sealing appartus - Google Patents
Recoverable antitheft well surface sealing appartus Download PDFInfo
- Publication number
- CN2628715Y CN2628715Y CN 03246122 CN03246122U CN2628715Y CN 2628715 Y CN2628715 Y CN 2628715Y CN 03246122 CN03246122 CN 03246122 CN 03246122 U CN03246122 U CN 03246122U CN 2628715 Y CN2628715 Y CN 2628715Y
- Authority
- CN
- China
- Prior art keywords
- shut
- well
- central tube
- ring
- push 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.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
A retrievable type anti-theft well plugging device is a well plugging equipment used in an oil field, overcoming the shortcomings of the prior temporary well plugging, and comprising essentially downhole tools and ground auxiliary parts which are connected. The device has the prominent advantages of firstly, having easy construction and therefore low time and labor consumption; secondly, reducing the retrieving difficulty; thirdly, facilitating the recovery of oil cap for output improvement; fourthly, having excellent anti-theft performance; fifthly, being reusable.
Description
One, technical field: the utility model relates to the antitheft shut-in well device of a kind of oil field shut-in well equipment, especially recoverable.
Two, background technology: in oilfield development process,, exist the provisional situation of closing down of oil-water well owing to be subjected to multiple factor affecting such as stratum energy decline, sleeve pipe damage, current technology level.For this class well, the more general practice is to realize interim shut-in well on oil reservoir circle, top and the dual cementing plug of well head section at present, in order to enabling at any time from now on.Though this method can be finished shut-in well, has the following disadvantages: the one, construction is complicated, employ that special vehicle is many, long construction period, investment are big; The 2nd, when enabling this well more from now on, must bore this two-stage cement plug again, not only increased and produced investment, also increased and utilized difficulty again; The 3rd, can't ordinary production though the part well is current, but oil recovery unit is open flow or adopt the bailing of bailing car to reclaim " oily cap " to increase crude output regularly, for this part well, as adopting the said method shut-in well, then can't obtain " oily cap " output, benefit is impaired; As not shunting in a well, often suffer the lawless person to destroy stolen again, cause the profit large tracts of land to leak, contaminated environment not only, and increased indemnity, manage very difficult.
Three, summary of the invention: the purpose of this utility model provides the antitheft shut-in well device of recoverable, and it has not only solved effectively, and interim shut-in well, " oily cap " reclaim, antitheft wet goods problem, and has simplified shut-in well greatly, utilizes construction sequence again.The purpose of this utility model is to realize like this, it is to be formed by connecting by plug head, caution hole, shut-in well lid, anti-roof liner pipe, sleeve pipe, open flow push rod, valve seat, ball-and-seat, centralizer, single top spring, spring base, shut-in well locator, bearing ring, high pressure sealing ring, seal retainer ring, spacing locating ring, central tube, and the plug head is connected on the hole of plug; The caution hole is being set on the plug; The shut-in well lid is installed in the top of sleeve pipe; Anti-roof liner pipe is positioned at sleeve pipe, and is connected with following central tube; Valve seat is installed on top at central tube, in the centre of valve seat the open flow push rod is arranged; Below the open flow push rod, connect ball-and-seat; Centralizer is fixed on the central tube; Single top spring is enclosed within on the open flow push rod, be positioned at ball-and-seat below, and be supported on the spring base; The shut-in well locator is connected with centralizer: bearing ring is positioned at the outside of shut-in well locator; High pressure sealing ring top is enclosed within the bearing ring; Seal retainer ring is enclosed within the high pressure sealing ring inboard; Spacing locating ring and central tube screwed connection.
When work, this device is used by wellbore tool and ground auxiliary accessories, can be used for shut-in well, receives oily (open flow is received oil, oil is received in bailing), releasing shut-in well.
Because adopt this device, effect is remarkable, the one, it is simple, time saving and energy saving to construct; The 2nd, reduced and utilized difficulty again; The 3rd, be convenient to the unit of oil recovery and reclaim " oily cap " volume increase extra earning; The 4th, theftproof performance is good; The 5th, reusable.
Four, description of drawings: accompanying drawing is the antitheft shut-in well apparatus structure of a recoverable schematic diagram:
In the accompanying drawing: 1, plug head 2, caution hole 3, shut-in well covers 4, anti-roof liner pipe 5, sleeve pipe 6, open flow push rod 7, valve sit 8, ball-and-seat 9, centralizer 10, single top spring 11, spring base 12, shunt in a well locator 13, bearing ring 14, high pressure sealing ring 15, seal retainer ring 16, spacing locating ring 17, central tube.
Five, the specific embodiment: in above accompanying drawing: plug head 1 is connected in the hole of plug, is provided with caution hole 2 in a side of plug; Shut-in well covers 3 tops that are installed in sleeve pipe 5; Anti-roof liner pipe 4 is positioned at sleeve pipe 5, and is connected with following central tube 17; Valve seat 7 is installed in upper end at central tube 17, in the centre of valve seat 7 open flow push rod 6 is arranged, and connects ball-and-seat 8 below open flow push rod 6; Centralizer 9 is fixed on the central tube 17; Single top spring 10 is enclosed within on the open flow push rod 6, be positioned at ball-and-seat 8 below, and be supported on the spring base 11; Shut-in well locator 12 is connected with centralizer 9; Bearing ring 13 is positioned at the outside of shut-in well locator 12; High pressure sealing ring 14 tops are enclosed within the bearing ring 13; Seal retainer ring 15 is enclosed within high pressure sealing ring 14 inboards; Spacing locating ring 16 is used screwed connection with central tube 17.
Claims (3)
1, the antitheft shut-in well device of recoverable is to be formed by connecting by plug head (1), caution hole (2), shut-in well lid (3), anti-roof liner pipe (4), sleeve pipe (5), open flow push rod (6), valve seat (7), ball-and-seat (8), centralizer (9), single top spring (10), spring base (11), shut-in well locator (12), bearing ring (13), high pressure sealing ring (14), seal retainer ring (15), spacing locating ring (16), central tube (17), it is characterized in that: plug head (1) is connected in the hole of plug, is provided with caution hole (2) in a side of plug; Shut-in well lid (3) is installed in the top of sleeve pipe (5); Anti-roof liner pipe (4) is positioned at sleeve pipe (5), and is connected with following central tube (17); Centralizer (9) is fixed on the central tube (17); Shut-in well locator (12) is connected with centralizer (9); Bearing ring (13) is positioned at shut-in well locator (12) outside; High pressure sealing ring (14) top is enclosed within the bearing ring (13), and seal retainer ring (15) is enclosed within high pressure sealing ring (14) inboard; Spacing locating ring (16) is used screwed connection with central tube (17).
2, the antitheft shut-in well device of recoverable according to claim 1 is characterized in that: valve seat (7) is installed in the upper end at central tube (17), in the centre of valve seat (7) open flow push rod (6) is arranged, and connects ball-and-seat (8) below open flow push rod (6).
3, the antitheft shut-in well device of recoverable according to claim 1, it is characterized in that: single top spring (10) is enclosed within on the open flow push rod (6), be positioned at ball-and-seat (8) below, and be supported on the spring base (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246122 CN2628715Y (en) | 2003-07-09 | 2003-07-09 | Recoverable antitheft well surface sealing appartus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246122 CN2628715Y (en) | 2003-07-09 | 2003-07-09 | Recoverable antitheft well surface sealing appartus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2628715Y true CN2628715Y (en) | 2004-07-28 |
Family
ID=34251931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03246122 Expired - Fee Related CN2628715Y (en) | 2003-07-09 | 2003-07-09 | Recoverable antitheft well surface sealing appartus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2628715Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557146C (en) * | 2008-01-11 | 2009-11-04 | 江苏南通二建集团有限公司 | Fast plugging device for deep foundation pit precipitation well |
| CN109138892A (en) * | 2018-10-11 | 2019-01-04 | 王瑞东 | High pressure shut-in well oil-water well punching device under pressure and plugging holes device |
-
2003
- 2003-07-09 CN CN 03246122 patent/CN2628715Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557146C (en) * | 2008-01-11 | 2009-11-04 | 江苏南通二建集团有限公司 | Fast plugging device for deep foundation pit precipitation well |
| CN109138892A (en) * | 2018-10-11 | 2019-01-04 | 王瑞东 | High pressure shut-in well oil-water well punching device under pressure and plugging holes device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |