CN2895733Y - Extrusion gravel-packing sand-proof tool - Google Patents
Extrusion gravel-packing sand-proof tool Download PDFInfo
- Publication number
- CN2895733Y CN2895733Y CN 200620082000 CN200620082000U CN2895733Y CN 2895733 Y CN2895733 Y CN 2895733Y CN 200620082000 CN200620082000 CN 200620082000 CN 200620082000 U CN200620082000 U CN 200620082000U CN 2895733 Y CN2895733 Y CN 2895733Y
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- China
- Prior art keywords
- filling
- clutch
- joint
- top connection
- gravel
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- Expired - Fee Related
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Abstract
The utility model relates to an extrusion gravel-packing sand-proof tool, which mainly comprises a filling mechanism, a separation device, a clutch mechanism, a moment transfer mechanism. An upper joint and an inner connected upper joint arranged on the separation device. An external cylinder formed by a base packet and a double sealing structure made up of seals arranged between a rubber barrel and an inner sleeve of the rubber tube. An open-close mechanism composed by with the filling upper joint and the external joint of the clutch is arranged on the filling mechanism; a filling hole open-close device composed by a external filling sleeve with the upper end connected with a stop key joint, the lower end connected with the lower filling sleeve, and a shutter sleeve, a press spring, a circulating valve arranged inside; a clutch mechanism composed by the upper filling joint and a guide flat key, a clutch nut arranged on the upper filling joint, the external joint of the clutch connected with clutch nut. The moment transfer mechanism comprises a releasing bushing, an outer cover and a flat key arranged between.
Description
One, technical field
The utility model relates to a kind of oil exploitation filling anti-sand instrument, particularly a kind of extruding gravel filling sand prevention instrument.
Two, background technology
At present, the oil field uses the filling anti-sand instrument roughly to have two kinds: a kind of is the leather cup formula, another kind has the packer system, both are bringing into play irreplaceable effect for the gravel filling sand prevention process of oil exploitation, but they also exist separately shortcoming or deficiency simultaneously, as leather cup formula filling anti-sand instrument: 1. poor sealing performance, the annular space sealing load is low, the highest 20Mpa; 2. just can give up poor stability after filling is finished; 3. operation is many, need descend one-trip string during operation, is lowered to packer sealing oil jacket annular space; 4. poor stability during as if squeeze pack, need be closed sleeve valve, and full well all has pressure; 5. non-moment transmission system, it is big to play the instrument difficulty.The filling anti-sand instrument of band packer system: the back squeeze pack of 1. can not giving up earlier, poor stability; 2. complex procedures can not once be finished filling in stratum and the pipe, needs moving tubing string, and the upper lifting pipe post need reach 1-2 rice during anti-flushing well, causes well head operating difficulties etc. like this; 3. non-moment transfer device, difficulty is big when tripping out instrument; 4. the filling mouth can not be with driveing with the pass, and construction is inconvenient.
Three, summary of the invention
The purpose of this utility model provides a kind of improved extruding gravel filling sand prevention instrument, shortcoming or deficiency that it can overcome effectively or avoid existing in the above-mentioned prior art, the disposable effectively squeeze pack working procedure of finishing in stratum and the pipe reaches the construction purpose quickly and easily.
Extruding gravel filling sand prevention instrument described in the utility model, comprise filling body, packing device, clutch, torque transmission mechanism, it is characterized in that being installed on the described packing device double sealing structure that external fluid cylinder that the filling top connection that comprises top connection and interior connection thereof, its outer seat big envelope of installing constitute and described packing element and the interior inner room of packing element are installed on seal; Be installed on the described filling body and comprise the closing device that cooperatively interacts and constitute by filling top connection and clutch socket, by upper end and block key joint, lower end and the filling pack hole switching device that valve cover, stage clip, circulating valve that the filling overcoat that is connected and Qi Nei install constitute of trapping, by the filling top connection and on the clutch that constitutes of dive key, clutch nut and the coupled clutch socket of installing; Described torque transmission mechanism is that top is connected with exterior central tube by discharging shear pin, and the bottom is connected with the lower cone joint with top with the contacted release cover of block key joint, and overcoat that the bottom is connected with the block key joint and the flat key of installing therebetween constitute.
Wherein, described filling top connection upper end is connected with top connection, is connected with the filling central tube in the lower end, matches with clutch socket and exterior central tube outward.Described filling top connection top is provided with inlet opening, and the bottom is provided with outer shoulder, vertically installs dive key on it, is fixed by hold-down screw, and dive key is installed on the clutch nut outward, and it is connected with the clutch socket.Described valve cover is installed between filling overcoat and circulating valve, and its top is provided with flowing hole, and the bottom is provided with interior step, and stage clip is installed it down, the circulation valve seat thereon, the lower end seat is installed the washing pipe joint in the stage clip in lower contact.Described circulating valve bottom also can be designed to install a telescopic tongue at Qi Bishang, and this telescopic tongue top is the inclined-plane, and the bottom is the plane, the plane seat is in valve cover on the step, the telescopic tongue middle part is provided with step, installs spring on it, and the front portion is provided with the pressing plate that fixes with circulating valve.Described packing element also can be upper and lower two, and spacer ring is installed in the centre, and inner room is installed the structure of seal in packing element and the packing element.
The utility model has following advantage compared with prior art:
1, adopts the external fluid cylinder, increased the fluid cylinder area, tubing string is not reduced in the seat envelope power of low-pressure operating mode lower packet, not only guaranteed the grappling and the sealing reliability of packing system, the safety that has also increased well head and tubing string;
2, designed down-hole switch mechanism; closed-in well lower channel during the stratum filling; during flow pack; open circulation canal, make screen casing and casing annulus carry out filling, convenient, fast; guarantee filling quality simultaneously; the protection upper sleeve is not born high pressure, even if upper sleeve when leakage can be carried out the construction of squeeze pack sand control equally.
3, design clutch system, removed and guarantee when needs trip out instrument, to rise out smoothly, also born fashionable total weight under tubing string.
4, inner room is provided with seal in packing element and the packing element, has enhanced leaktightness or double containment effect, improves the sealing performance of packing system greatly, does not sting under the 30Mpa pressure and does not leak.
5, design has circulating valve, valve cover system, can carry out normal filling and flow pack easily, can open or close pack hole at any time as required;
6, design has by dive key, and the clutch system that clutch nut etc. constitute has not only been born the load of tubing string when going into the well, and has the back filling function of giving up earlier.
7, design has the moment transmission system that is made of interior axle, outer shaft and key, can effectively transmit torque, and have locking anti-drop function.
Four, description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 presses structure A-A shown in Figure 1 to schematic diagram,
Fig. 3 is the another kind of structural representation by circulating valve shown in Figure 1 bottom,
Fig. 4 is the another kind of structural representation by packing element seal shown in Figure 1.
Five, the specific embodiment
Consult Fig. 1-Fig. 4, a kind of extruding gravel filling sand prevention instrument, comprise filling body, packing device, clutch, torque transmission mechanism, be installed on the filling top connection 6 that comprises top connection 2 and interior connection thereof, external fluid cylinder and described packing element 17 and 16 double sealing structures that are installed on seal 19 of the interior cover of packing element that its outer seat big envelope 5 of installing constitutes on the packing device; Be installed on the filling body and comprise the closing device that cooperatively interacts and constitute by filling top connection 6 and clutch socket 10, by upper end and block key joint 38, lower end and the filling pack hole switching device that valve cover 41, stage clip 44, circulating valve 40 that the 45 filling overcoats 39 that are connected and Qi Nei install constitute of trapping, by filling top connection 6 and on the clutch that constitutes of dive key 8, clutch nut 9 and the coupled clutch socket 10 of installing; Torque transmission mechanism is that top is connected with exterior central tube 15 by discharging shear pin 33, the contacted releases cover of bottom and block key joint 38 31 is connected with lower cone joint 29 with top, the overcoat 32 that the bottom is connected with block key joint 38 and install therebetween flat key 34 formations.
Filling top connection 6 upper ends are connected with top connection 2, are connected with filling central tube 18 in the lower end, match with clutch socket 10 and exterior central tube 15 outward.Filling top connection 6 tops are provided with inlet opening 4, and the bottom is provided with outer shoulder, vertically install dive key 8 on it, fix by hold-down screw 7, dive key is fixed in the filling top connection 6 by screw 7, is installed on clutch nut 9 outward, and it is connected with clutch socket 10.Valve cover 41 is installed between filling overcoat 39 and circulating valve 40, and its top is provided with flowing hole, and the bottom is provided with interior step, and stage clip 44 is installed it down, 40 of circulating valves thereon, the lower end seat is installed washing pipe joint 46 in the stage clip 44 in lower contact 48.Be installed on erosion control shear pin 1 and seal 3 in seat big envelope 5 tops and the top connection 2.Locking jacket 12 tops are fixed in the clutch socket 10 by seat envelope shear pin 11, the bottom is connected with lock tube 14, installs lock ring 13 between lock tube top and the exterior central tube 15, and the bottom is connected with cover 16 in the packing element, install packing element 17 on the cover 16 in the packing element, its one installs adapter sleeve 20.Adapter sleeve 20 is fixed in the packing element by seat envelope shear pin 11 and overlaps on 16, and the bottom links to each other with upper cone 21, and upper cone 21 matches with slips 23, and slip sleeve 22 is installed on its top.Install slips spring 25 on the slips 23, and fixed by slips screw 24, the bottom is installed top cover 27 and is matched with lower cone 26.Lower cone 26 lower ends link to each other with lower cone joint 29.Stop collar 28 is installed in lower cone 26 and lower cone joint 29, and its upper end links to each other with exterior central tube 15, installs lock dog 30 between bottom and the lower cone joint, and fixes with discharging to overlap to draw by release shear pin 33.Overcoat 32 upper ends are connected with lower cone joint 29, the lower end is connected with block key joint 38, filling central tube 18 tops are connected with filling top connection 6, the bottom is connected with upper end in the block key joint 38, install flat key 34 between block key upper end of joint and lower cone joint 29 lower ends, fix ball seat 37 by ball seat shear pin 36 in the middle part, settling steel ball 35 on it.The block key joint 38 outer filling overcoats 39 that connect down, interior connection circulating valve 40 down, filling overcoat 39 lower ends connect filling and trap 45.The circulating valve lower end connects washing pipe joint 46, and the unidirectional valve seat 42 of interior connection is installed steel ball 35 on it, and packing ring 43 is installed in the lower end.Valve cover 41 install in filling overcoat 39, filling trap 45 and circulating valve 40 between, install stage clip 44 between its underpart and the washing pipe joint 46.Washing pipe joint 46 serves as valve seat simultaneously, installs down steel ball 47 on it, and it is connection washing pipe pipe nipple 51 down.Filling 45 lower ends of trapping connect lower contact 48, back-off top connection 49 and back-off lower contact 50 in turn.All be installed on seal 3 in cover 16, lower cone 26, stop collar 28, lower cone joint 29, block key joint 38, valve cover 41, lower contact 48, washing pipe joint 46 and the back-off top connection 49 in seat big envelope 5, filling top connection 6, clutch socket 10, the packing element.
Circulating valve 40 bottoms also can be designed to install a telescopic tongue 53 at Qi Bishang, and this telescopic tongue top is the inclined-plane, and the bottom is the plane, the plane seat is in valve cover 41 on the step, the telescopic tongue middle part is provided with step, installs spring 54 on it, and the front portion is provided with the pressing plate 52 (as Fig. 3) that fixes with circulating valve 40.
Claims (6)
1, a kind of extruding gravel filling sand prevention instrument, mainly comprise filling body, packing device, clutch, torque transmission mechanism, it is characterized in that being installed on the described packing device double sealing structure that external fluid cylinder that the filling top connection that comprises top connection and interior connection thereof, its outer seat big envelope of installing constitute and described packing element and the interior inner room of packing element are installed on seal; Be installed on the described filling body and comprise the closing device that cooperatively interacts and constitute by filling top connection and clutch socket, by upper end and block key joint, lower end and the filling pack hole switching device that valve cover, stage clip, circulating valve that the filling overcoat that is connected and Qi Nei install constitute of trapping, by the filling top connection and on the clutch that constitutes of dive key, clutch nut and the coupled clutch socket of installing; Described torque transmission mechanism is that top is connected with exterior central tube by discharging shear pin, and the bottom is connected with the lower cone joint with top with the contacted release cover of block key joint, and overcoat that the bottom is connected with the block key joint and the flat key of installing therebetween constitute.
2, extruding gravel filling sand prevention instrument according to claim 1 is characterized in that described filling top connection upper end is connected with top connection, is connected with the filling central tube in the lower end, matches with clutch socket and exterior central tube outward.
3, extruding gravel filling sand prevention instrument according to claim 2, it is characterized in that described filling top connection top is provided with inlet opening, the bottom is provided with outer shoulder, vertically install dive key on it, fix by hold-down screw, dive key is installed on the clutch nut outward, and it is connected with the clutch socket.
4, extruding gravel filling sand prevention instrument according to claim 1, it is characterized in that described valve cover installs between filling overcoat and circulating valve, its top is provided with flowing hole, the bottom is provided with interior step, stage clip is installed it down, the circulation valve seat thereon, the lower end seat is installed the washing pipe joint in the stage clip in lower contact.
5, according to claim 1 or 4 described extruding gravel filling sand prevention instruments, it is characterized in that described circulating valve bottom also can be designed to install a telescopic tongue at Qi Bishang, this telescopic tongue top is the inclined-plane, the bottom is the plane, the plane seat is in valve cover on the step, the telescopic tongue middle part is provided with step, installs spring on it, and the front portion is provided with the pressing plate that fixes with circulating valve.
6, extruding gravel filling sand prevention instrument according to claim 1 is characterized in that described packing element also can be upper and lower two, and spacer ring is installed in the centre, and inner room is installed the structure of seal in packing element and the packing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620082000 CN2895733Y (en) | 2006-03-16 | 2006-03-16 | Extrusion gravel-packing sand-proof tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620082000 CN2895733Y (en) | 2006-03-16 | 2006-03-16 | Extrusion gravel-packing sand-proof tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895733Y true CN2895733Y (en) | 2007-05-02 |
Family
ID=38065312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620082000 Expired - Fee Related CN2895733Y (en) | 2006-03-16 | 2006-03-16 | Extrusion gravel-packing sand-proof tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895733Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266868A (en) * | 2013-05-27 | 2013-08-28 | 中国石油天然气股份有限公司 | Horizontal well subsection gravel pack tool |
| CN103375150A (en) * | 2013-08-08 | 2013-10-30 | 中国石油集团渤海钻探工程有限公司 | Horizontal well gravel packing tool |
| CN106567692A (en) * | 2016-11-14 | 2017-04-19 | 王延睿 | Dual-control filling device and method for oil exploitation |
| CN107816332A (en) * | 2017-09-15 | 2018-03-20 | 中国石油天然气股份有限公司 | A kind of slip-type back-up sand eyelid retractor |
-
2006
- 2006-03-16 CN CN 200620082000 patent/CN2895733Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266868A (en) * | 2013-05-27 | 2013-08-28 | 中国石油天然气股份有限公司 | Horizontal well subsection gravel pack tool |
| CN103375150A (en) * | 2013-08-08 | 2013-10-30 | 中国石油集团渤海钻探工程有限公司 | Horizontal well gravel packing tool |
| CN106567692A (en) * | 2016-11-14 | 2017-04-19 | 王延睿 | Dual-control filling device and method for oil exploitation |
| CN107816332A (en) * | 2017-09-15 | 2018-03-20 | 中国石油天然气股份有限公司 | A kind of slip-type back-up sand eyelid retractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 |