CN201843573U - Underground available and drillable ash injection bridge plug - Google Patents
Underground available and drillable ash injection bridge plug Download PDFInfo
- Publication number
- CN201843573U CN201843573U CN2010205885600U CN201020588560U CN201843573U CN 201843573 U CN201843573 U CN 201843573U CN 2010205885600 U CN2010205885600 U CN 2010205885600U CN 201020588560 U CN201020588560 U CN 201020588560U CN 201843573 U CN201843573 U CN 201843573U
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- spindle
- wall
- drillable
- hole
- bridge plug
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Abstract
The utility model relates to an underground available and drillable ash injection bridge plug comprising a setting part at the upper part and a plugging part at the lower part, a locking device consists of a whole elastic lock flap sheathed on a central shaft, and a lock ring. When setting is carried out, a pipe is pressurized, a setting piston pushes an upper circle ring of a plugging part to compress a rubber cylinder to expand and a conical support slip is pushed by a lower circle ring to push out a bridge plug and then the bridge plug is clamped on the sleeve. When the pressure in the pipe achieves the designed pressure, a lock ring is locked on the whole elastic lock flap, a connection head is disconnected, a setting part and a bridge plug part are separated, a check valve of the bridge plug is remained at the lower part, and a pipe pillar can directly conduct sand filing and ash injection operation. In unsetting, a fishing tool fishes an unsetting head and then lifts upwards, the whole elastic lock flap is popped out from a locking groove of a lower central shaft, the bridge plug loses locking force, and when the unsetting heat is lifted upwards continuously, the unsetting head pulls the upper circle ring to unset the rubber cylinder so as to reset an upper and a lower cones, the slips are taken back, and the bridge plug is unset. In the utility model, one pipe pillar can realize setting, sand filling, and ash injection operation of the bridge plug, therefore, the effects of being convenient, simple and high-efficient are achieved.
Description
Technical field
The utility model relates to that a kind of down-hole is desirable, drillable is annotated grey bridging plug, be mainly used in the seal operation of the various oil gas water wells in oil field, use this bridging plug can realize carrying out bridging plug seal, back-up sand and annotating grey operation, belong to the wellbore operations instrument in the oil development process with one-trip string.
Background technology
When conventional common bridging plug sets in the prior art, need one-trip string down; When annotating ash, need taking-up to set the bridging plug tubing string and annotate grey tubing string more next time, do time wasted and cost like this.In addition, the general employing locked strong the locking and deblocking in the existing bridging plug latch-up structure, because the strong unbalance stress of polylith lock, often because of unbalance stress causes deformation, or foreign material are filled and are caused the deblocking difficulty when deblocking, in addition, existing bridging plug locking key can not axial rotation, increased difficulty for the milling bridging plug, because many packing elements structure is adopted in shutoff, the spacer ring structure between packing element has also increased the milling difficulty again.When high angle hole and horizontal well construction, the salvaging interface of shutoff tubing string is for being threaded, and because of tubing string is difficult to rotate, in case bridging plug can not deblocking, easily causes tubing string and bridging plug not to throw off safely; The retrievable bridge plug of other type is not anti-to revolve structure, and when needs bored, the bridging plug connecting shaft rotated, and causes to be difficult for milling.
The utility model content
The purpose of this utility model is to propose that a kind of down-hole of novel structure is desirable, drillable is annotated grey bridging plug, avoid the operation of repetition lower tubular column, overcoming in milling difficulty and inclined shaft, the extended reach well accident potential such as tubing string bit freezing, is the architecture advances to existing conventional bridging plug.
The utility model adopts following technical scheme, be that a kind of down-hole is desirable, drillable annotate grey bridging plug by top set part and the occluding member of bottom constitutes, its middle and upper part sets part from top to bottom successively by top connection, upper spindle, outer sleeve, set piston, connector constitutes, the occluding member of bottom is from top to bottom successively by connector, separate end socket, ball valve, locked joints, lower spindle, integral, flexible lock lobe, lock ring, last rule ring, packing element, following rule ring, upper cone, connecting cylinder, slips, the slips tube, lower cone and starting taper constitute, the outer sleeve that sets part that it is characterized in that top is socketed in upper spindle outside under the top connection, setting piston seal is installed in the annular space of outer sleeve and upper spindle formation, the upper spindle bottom is connected with connector, ball valve is equipped with in the connector bottom in the occluding member of bottom, lower spindle is installed below the ball valve, the lower spindle top outer wall of screwed connection that make progress at connector, connector outer wall suit is separated end socket, the lower spindle outer wall with separate the end socket bottom locking device be housed, locking device is made of the integral, flexible lock lobe and the lock ring that are sleeved on the lower spindle, integral, flexible lock lobe places in the lock slots of lower spindle top and the formation of connecting cylinder inwall, lock ring holds out against top and separates end socket, the connecting cylinder inwall contacts with the sealing of lower spindle middle part, locked joints is sleeved on separates the end socket outside, the connecting cylinder outer wall is equipped with the rule ring from top to bottom successively, packing element and following rule ring, last rule ring is threaded in the locked joints bottom, on the outer wall of lower spindle bottom diameter shrinkage part upper cone is housed from top to bottom, slips and lower cone, the bottom of rule ring is withstood down on upper cone top, the bottom of lower cone is connected with starting taper, on, the outer wall of lower cone is equipped with the slips tube, the slips tube is at slips place opening, and starting taper and following rule ring are spacing last with the slips tube, between the lower cone.
Set piston and be provided with the head step, set piston tail and be against the top that next stage sets piston.The afterbody that bottom one-level sets piston is against the connector top.
Upper spindle is a hollow shaft, and outer wall is provided with three steps, sets piston and agrees with being installed in the annular space that upper spindle outer wall and outer sleeve form three grades respectively, and the head step that sets piston is against the bottom of upper spindle step.
Lower spindle top below ball valve, separate on the outer wall of end socket sidewall and locked joints and have through hole.
On the connector outer wall pin is housed.
The step top of upper spindle outer wall has the pressure transmission hole that leads to annular space between upper spindle outer wall and outer sleeve from the upper spindle inner chamber.
Lower spindle is a solid shafting, and lower spindle external wall of upper portion surface has lock slots, and slips is partly installed in lower spindle bottom radially indentation.The lower spindle surface is provided with anti-spin slot.
Locking device is made of the integral, flexible lock lobe and the lock ring that are sleeved on the central axis, the elastic tip of integral, flexible lock lobe has projection, projection is stuck in the rule rings lock slots, is locking state when separating end socket and compressing the rule ring, separates end socket and throws off that to go up rule be the deblocking state when encircling.
Operating principle of the present utility model.The utility model constitutes by setting with shutoff two parts, and in when pressurization in pipe, the setting tool piston promotes going up that rule ring compression packing element expands and promoting cone supporting slip release bridging plug and be stuck on the sleeve pipe through rule ring down of occluding member.When the pipe internal pressure reached design pressure, lock ring was locked on the integral, flexible lock lobe, and this moment, connector disconnected, setting part partly throws off with bridging plug, below the ball-and-seat of bridging plug was stayed, so setting tool is a up/down perforation, thereby tubing string can directly carry out operations such as back-up sand, notes ash.During the deblocking bridging plug, fishing tool is carried on dragging for and separating behind the end socket, and integral, flexible lock lobe ejects in the lower spindle lock slots, make this bridging plug lose latching force, carry in the continuation when separating end socket, separate end socket and will spur rule rings and untie packing element, make lower cone get back to original position, slips is regained, the bridging plug deblocking.
The utility model structure uniqueness can be used as the bridging plug of the seal operation of the various oil gas water wells in oil field, but and one-trip string realize bridging plug seal, back-up sand and annotate grey operation, convenient simple and direct efficient.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the local amplification assumption diagram of locking device of the present utility model;
Among the figure: top connection 1, outer sleeve 2, set piston 3, upper spindle 4, connector 5, separate end socket 6, ball valve 7, locked joints 8, integral, flexible lock lobe 9, lock ring 10, go up rule ring 11, packing element 12, rule ring 13, connecting cylinder 14, lower spindle 15, upper cone 16, slips 17, slips tube 18, lower cone 19, starting taper 20, through hole 21, pressure transmission hole 22, pin 23 down.
The specific embodiment
Below in conjunction with drawings and Examples structure of the present utility model is further specified, as shown in Figure 1, down-hole of the present utility model is desirable, drillable annotate grey bridging plug by top set part and the occluding member of bottom constitutes, its middle and upper part sets part from top to bottom successively by top connection 1, upper spindle 4, outer sleeve 2, set piston 3, connector 5 constitutes, the occluding member of bottom is from top to bottom successively by connector 5, separate end socket 6, ball valve 7, locked joints 8, lower spindle 15, integral, flexible lock lobe 9, lock ring 10, last rule ring 11, packing element 12, following rule ring 13, upper cone 16, connecting cylinder 14, slips 17, slips tube 18, lower cone 19 and starting taper 20 constitute, the outer sleeve 2 that sets part that it is characterized in that top is socketed in upper spindle 4 outsides under the top connection 1, setting piston 3 sealings is installed in the annular space of outer sleeve 2 and upper spindle 4 formation, upper spindle 4 bottoms are connected with connector 5, ball valve 7 is equipped with in connector 5 bottoms in the occluding member of bottom, lower spindle 15 is installed below the ball valve 7, the lower spindle 15 tops outer wall of screwed connection that make progress at connector 5, connector 5 outer wall suits are separated end socket 6, lower spindle 15 outer walls with separate end socket 6 bottoms locking device be housed, locking device is made of with lock ring 10 the integral, flexible lock lobe 9 that is sleeved on the lower spindle 15, integral, flexible lock lobe 9 places in the lock slots of lower spindle 15 tops and the formation of connecting cylinder 14 inwalls, lock ring 10 holds out against top and separates end socket 6, connecting cylinder 14 inwalls contact with the sealing of lower spindle 15 middle parts, locked joints 8 is sleeved on separates end socket 6 outsides, connecting cylinder 14 outer walls are equipped with rule ring 11 from top to bottom successively, packing element 12 and following rule ring 13, last rule ring 11 is threaded in locked joints 8 bottoms, on the outer wall of lower spindle 15 bottom diameter shrinkage parts upper cone 16 is housed from top to bottom, slips 17 and lower cone 19, the bottom of rule ring 13 is withstood down on upper cone 16 tops, the bottom of lower cone 19 is connected with starting taper 20, on, the outer wall of lower cone is equipped with slips tube 18, slips tube 18 is at slips 17 place's openings, and starting taper 20 and following rule ring 13 are spacing last with slips tube 18, between the lower cone.
Set piston 3 and be provided with the head step, set piston 3 afterbodys and be against the top that next stage sets piston.The afterbody that bottom one-level sets piston is against connector 5 tops.
Upper spindle 4 is a hollow shaft, and upper spindle 4 outer walls are provided with three steps, sets piston 3 and agrees with being installed in the annular space that upper spindle 4 outer walls and outer sleeve 2 form three grades respectively, and the head step that sets piston 3 is against the bottom of upper spindle 4 outer wall steps.
Lower spindle 15 tops below ball valve 7, separate on the outer wall of end socket 6 sidewalls and locked joints 8 and have through hole 21.
On connector 5 outer walls pin 23 is housed.
The step top of upper spindle 4 outer walls has the pressure transmission hole 22 that leads to upper spindle 4 outer walls and 2 annular spaces of outer sleeve from upper spindle 4 inner chambers.
Lower spindle 15 is a solid shafting, and lower spindle 15 external wall of upper portion surfaces have lock slots, and slips is partly installed in lower spindle 15 bottoms radially indentation.Lower spindle 15 surfaces are provided with anti-spin slot.
Locking device is made of with lock ring 10 the integral, flexible lock lobe 9 that is sleeved on the lower spindle, and the elastic tip of integral, flexible lock lobe 9 has projection, and projection is stuck in the rule ring lock slots, separates end socket 6 and compresses that to advise when encircling be locking state; Separating the last rule ring of end socket 6 disengagements was the deblocking state in 11 o'clock.
Claims (9)
1. a down-hole is desirable, drillable is annotated grey bridging plug, the occluding member that sets part and bottom by top constitutes, its middle and upper part sets part from top to bottom successively by top connection (1), upper spindle (4), outer sleeve (2), set piston (3), connector (5) constitutes, the occluding member of bottom is from top to bottom successively by connector (5), separate end socket (6), ball valve (7), locked joints (8), lower spindle (15), integral, flexible lock lobe (9), lock ring (10), last rule rings (11), packing element (12), following rule rings (13), upper cone (16), connecting cylinder (14), slips (17), slips tube (18), lower cone (19) and starting taper (20) constitute, the outer sleeve (2) that sets part that it is characterized in that top is socketed in upper spindle (4) outside under the top connection (1), setting piston (3) sealing is installed in the annular space of outer sleeve (2) and upper spindle (4) formation, upper spindle (4) bottom is connected with connector (5), ball valve (7) is equipped with in connector in the occluding member of bottom (5) bottom, lower spindle (15) is installed below the ball valve (7), lower spindle (15) the top outer wall of screwed connection that make progress in connector (5), connector (5) outer wall suit is separated end socket (6), lower spindle (15) outer wall with separate end socket (6) bottom locking device be housed, locking device is made of with lock ring (10) the integral, flexible lock lobe (9) that is sleeved on the lower spindle (15), integral, flexible lock lobe (9) places in the lock slots of lower spindle (15) top and the formation of connecting cylinder (14) inwall, lock ring (10) holds out against top and separates end socket (6), connecting cylinder (14) inwall contacts with the sealing of lower spindle (15) middle part, locked joints (8) is sleeved on separates end socket (6) outside, connecting cylinder (14) outer wall is equipped with rule rings (11) from top to bottom successively, packing element (12) and following rule rings (13), last rule rings (11) are threaded in locked joints (8) bottom, on the outer wall of lower spindle (15) bottom diameter shrinkage part upper cone (16) is housed from top to bottom, slips (17) and lower cone (19), the bottom of rule rings (13) is withstood down on upper cone (16) top, the bottom of lower cone (19) is connected with starting taper (20), on, the outer wall of lower cone is equipped with slips tube (18), slips tube (18) is located opening at slips (17), and starting taper (20) and following rule rings (13) are spacing last with slips tube (18), between the lower cone.
2. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that setting piston (3) and is provided with the head step.
3. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that upper spindle (4) is a hollow shaft, and upper spindle (4) outer wall is provided with three steps.
4. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that at lower spindle (15) top, separates on the outer wall of end socket (6) sidewall and locked joints (8) and have through hole (21).
5. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that on connector (5) outer wall pin (23) being housed.
6. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that the step top of upper spindle (4) outer wall has the pressure transmission hole (22) that leads to annular space between upper spindle (4) outer wall and outer sleeve (2) from upper spindle (4) inner chamber.
7. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that lower spindle (15) is a solid shafting, and lower spindle (15) external wall of upper portion surface has lock slots, the radially indentation of lower spindle (15) bottom.
8. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that lower spindle (15) surface is provided with anti-spin slot.
9. down-hole as claimed in claim 1 is desirable, drillable is annotated grey bridging plug, it is characterized in that locking device is made of with lock ring (10) the integral, flexible lock lobe (9) that is sleeved on the lower spindle, and the elastic tip of integral, flexible lock lobe (9) has projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205885600U CN201843573U (en) | 2010-10-28 | 2010-10-28 | Underground available and drillable ash injection bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205885600U CN201843573U (en) | 2010-10-28 | 2010-10-28 | Underground available and drillable ash injection bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843573U true CN201843573U (en) | 2011-05-25 |
Family
ID=44038466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205885600U Expired - Fee Related CN201843573U (en) | 2010-10-28 | 2010-10-28 | Underground available and drillable ash injection bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843573U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952608A (en) * | 2018-08-13 | 2018-12-07 | 四川大学 | The reverse turning bed structure that automatic trigger docking is opened |
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
| CN114320216A (en) * | 2022-02-16 | 2022-04-12 | 成都德维石油技术服务有限责任公司 | Packer |
-
2010
- 2010-10-28 CN CN2010205885600U patent/CN201843573U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952608A (en) * | 2018-08-13 | 2018-12-07 | 四川大学 | The reverse turning bed structure that automatic trigger docking is opened |
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
| CN114320216A (en) * | 2022-02-16 | 2022-04-12 | 成都德维石油技术服务有限责任公司 | Packer |
| CN114320216B (en) * | 2022-02-16 | 2023-09-15 | 成都德维石油技术服务有限责任公司 | Packer |
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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: 20110525 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |