CN201021606Y - A device for preventing from oil well drop and suspender impact - Google Patents
A device for preventing from oil well drop and suspender impact Download PDFInfo
- Publication number
- CN201021606Y CN201021606Y CNU2007200104839U CN200720010483U CN201021606Y CN 201021606 Y CN201021606 Y CN 201021606Y CN U2007200104839 U CNU2007200104839 U CN U2007200104839U CN 200720010483 U CN200720010483 U CN 200720010483U CN 201021606 Y CN201021606 Y CN 201021606Y
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- packing
- locking
- central tube
- junk
- prevent
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Abstract
The utility model relates to a device which can prevent object from dropping in and prevent suspended object from being damaged due to collision. The utility model consists of a central pipe connected with a flow increasing pipe, and a reducer union. A locating nut, a gland pressing block, a decelerating gland, a connecting body, a guide body, a damping spring, a locking core shaft, a locking chucking body, and a locking chucking tooth are arranged on the outside diameter of the central pipe. Since a groove is arranged on the upside of the central pipe, when a dropping object falls into the sleeve ring space, the locking chucking tooth of the device can prevent the dropping object from falling down, a damping gland can perform the buffering function under the friction force of the groove, and prevent the dropping object in the pipe column from breaking the sleeve, and hindrance can be encountered when the pipe column is lifted. The device is convenient when being used, and can be applied to the horizontal well to prevent the dropping object from damaging the sleeve.
Description
Technical field:
The utility model relates to the crashproof damage device of horizontal oil trouble of lost tool in hole, anti-junk of especially a kind of oil well and anti-hanger damage device.
Background technology
The oil field is along with development technique is constantly progressive, horizontal well in enormous quantities has entered recovery process, for improving field output, general oil well often adopts exploitation via steam injection viscous crude method, because easily aging the causing of horizontal well oil pipe sucker rod screw thread and other component under the effect of long term high temperature high pressure comes off, weight can make the junk of curved section pound on sleeve pipe and causes sleeve pipe to damage in moment, less junk falls into net horizontal section, can cause lower tubular column to be hampered and salvaged inconvenient phenomenon, a kind ofly junk can be blocked in the well and the device of anti-hanger damage the utility model proposes just.
The utility model content:
The utility model purpose is a kind of anti-junk of oil well and the anti-hanger damage device of being used for that provides in order to overcome above-mentioned shortcoming.In the sleeve pipe of this device in horizontal well, junk in the well can be blocked in the well, reason junk and cause sleeve pipe to damage does not make oil well can carry out the oil well operation smoothly.
For realizing task of the present utility model, this device is by incremental pipe, and by the central tube of screw thread box cupling connection, and the reducer union that the male thread of central tube bottom connects is formed; On the external diameter of central tube upper end setscrew nut is housed, packing box on connecting one by the packing nut below the setscrew nut, packing briquetting, deceleration packing, connector from top to bottom are housed in the packing box successively, guide way is housed below connector, and the guide way below has damping spring to contact with the outer field locking mandrel of following position central tube; Locking mandrel outside is connecting locking card tooth by a locking card body, at described reducer union upper end position guide pad is housed.
Be carved with groove on one section the center tube wall between described central tube skin and deceleration packing, connector and the guide way.
Described locking card thread form shape is the caput shape, and its stub end maximum gauge is close to internal surface of sleeve pipe, and bill withstands on the locking mandrel outer wall.
The utility model working method is:
Incremental pipe is with after oil pipe or steam injection string are connected, this device is lowered among the sleeve pipe of horizontal well, if the junk in the well comes off in the sleeve pipe time, momentary action power can be by locking card crest on internal surface of sleeve pipe, impact force forces spring to shrink, and pass to the deceleration packing by guide way again after energy stored a part, the deceleration packing is owing to adopted high impact material, drive the deceleration packing in the packing box under the connector behind the energy again having absorbed, the packing briquetting reaches down, and packing box upwards slides into the setscrew nut place, when the groove of deceleration packing process central tube upper part superficies, under the frictional force effect, impact energy is all consumed, drop among the interior horizontal segment of horizontal well thereby play the junk that prevents in the casing string, avoid breaking sleeve pipe.
The utility model compared with prior art has distinguishing feature:
Reach another deceleration packing that connects by connector and act on above the spring owing on the central tube of this device is outer field, installed in the packing box, can make the junk that falls in the sleeve pipe after falling into, can play cushioning effect like this by packing briquetting, deceleration packing.And by spring will place the below locking card tooth be pushed into the cover inner tube layer, and the outer field groove of central tube can play rubbing action to the parts below the outer field deceleration packing, make junk be unlikely to fall under the net horizontal section, avoid occurring gambling the phenomenon of shut-in well eye and hanger damage.
Be located at the guide pad above the reducer union in addition, can under junk impacts, make again to dash under the locking card tooth and play cushioning effect, can play guaranteeing that whole blocks machinery is fixed on the sleeve pipe firmly, stops that junk moves down.
Description of drawings
Figure is the utility model structural representation
Among the figure by: 9 times packing boxs of packing box 6 packing briquetting 7 deceleration packings, 8 connectors, 11 guide waies, 12 damping springs 13 locking mandrels, 14 locking card bodies, 15 locking card teeth, 16 central tubes, 17 locating rings, 18 guide pads, 19 reducer unions, 20 sleeve pipes are formed on 1 incremental pipe 2 box cuplings 3 setscrew nuts 4 packings 5.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
Incremental pipe 1 is for having the box cupling that the eyelet two ends are screw thread among the figure, the pipe lower end makes it to connect together with box cupling 2, central tube 16 joins by pin thread and box cupling 2, below sizing nut 3 these sizing nuts are arranged on the central tube outer wall below 10 centimeters of the distance box cuplings, packing box 5 on the packing setscrew nut 3 is housed successively, packing briquetting 6 deceleration packings 7 and connector 8 are housed again in last packing box.Following deceleration body is close to connector, two deceleration packings 7 have adopted the high-abrasive material making, the below of last packing box 5 has a L type guide way to be used for fixing the damping spring 12 of packing box 5 and below, this damping spring 12 is installed on the outer wall of central tube, its below tightly contacts with locking mandrel 13, this mandrel is similarly the L type, is locked in above the locking mandrel 13 by the locking card tooth 15 that locking card body 14 is shape the caput shape at locking mandrel 13 skins.
In addition on the upper part external diameter of central tube 16, with deceleration packing 7, connector 8, be carved with groove on one section the tube wall between the guide way 11, this section is called braking section, owing to select impact-resistant material energy-absorbing for use, like this, after coming off, the junk in the horizontal well makes locking card tooth 15 moments bump sleeve pipe, the huge strength that produces is blocked the force transmission of body 14 and locking card tooth 15 to above the damping spring 12 by locking, this moment, spring was contraction state, and impact stored, cushion effect can be passed to the deceleration packing again by guide way 11, further absorb energy and drive by packing box under the connector 9, deceleration packing 7, the energy absorption section that packing briquetting 6 and last packing box 5 are formed upwards slides into setscrew nut 3 positions, especially when deceleration packing 7 passes through the groove on central tubes 16 surfaces, can under the effect of groove frictional force, whole impact energys be consumed, thereby the sleeve pipe that prevents to come off drops into the horizontal well hypomere, causes stifled well and hanger to damage.
Claims (3)
1. one kind is used for anti-junk of oil well and anti-hanger damage device, the reducer union (19) that the position male thread connects under central tube (16) that is connected by screw thread box cupling (2) by incremental pipe (1) and the central tube is formed, it is characterized in that on the external diameter of described central tube upper end, setscrew nut (3) is housed, below setscrew nut, connect one and go up packing box (5) by packing (4), packing briquetting (6), deceleration packing (7), union body (8) are housed in the packing box from top to bottom successively, and there is guide way (11) union body (8) below.Below guide way, there is a damping spring (12) to contact with the outer field locking mandrel of following position central tube (13), locking mandrel (13) outside is linking locking card tooth (15) by a locking card body (14), at described reducer union (19) upper end position guide pad (18) is housed.
2. according to described a kind of anti-junk of oil well and the anti-hanger damage device of being used for of claim: it is characterized in that being carved with groove on one section contacted tube wall between the skin of described central tube (16) and deceleration packing (7), connector (8), the guide way (11).
3. according to described a kind of anti-junk of oil well and the anti-hanger damage device of being used for of claim: it is characterized in that described locking card tooth (15) shape is the caput shape, its stub end maximum gauge is close to internal surface of sleeve pipe, the bill top is positioned on the outer wall of locking tubular axis (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200104839U CN201021606Y (en) | 2007-02-07 | 2007-02-07 | A device for preventing from oil well drop and suspender impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200104839U CN201021606Y (en) | 2007-02-07 | 2007-02-07 | A device for preventing from oil well drop and suspender impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021606Y true CN201021606Y (en) | 2008-02-13 |
Family
ID=39089016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200104839U Expired - Lifetime CN201021606Y (en) | 2007-02-07 | 2007-02-07 | A device for preventing from oil well drop and suspender impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021606Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939049A (en) * | 2013-01-22 | 2014-07-23 | 中国石油天然气股份有限公司 | Shaft falling object preventing device |
| CN106740965A (en) * | 2017-02-17 | 2017-05-31 | 秦皇岛鸿鼎轨道交通设备有限公司 | The compartment of rack rail road railer is oriented to suspension and clamp rail structure |
| CN107152245A (en) * | 2017-07-14 | 2017-09-12 | 延长油田股份有限公司靖边采油厂 | A kind of sealed oil pipe buffer used for dropped from high place |
-
2007
- 2007-02-07 CN CNU2007200104839U patent/CN201021606Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939049A (en) * | 2013-01-22 | 2014-07-23 | 中国石油天然气股份有限公司 | Shaft falling object preventing device |
| CN106740965A (en) * | 2017-02-17 | 2017-05-31 | 秦皇岛鸿鼎轨道交通设备有限公司 | The compartment of rack rail road railer is oriented to suspension and clamp rail structure |
| CN107152245A (en) * | 2017-07-14 | 2017-09-12 | 延长油田股份有限公司靖边采油厂 | A kind of sealed oil pipe buffer used for dropped from high place |
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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 |
Granted publication date: 20080213 |
|
| CX01 | Expiry of patent term |