CN2646371Y - Novel packaged milling tool for drillable bridge plug - Google Patents
Novel packaged milling tool for drillable bridge plug Download PDFInfo
- Publication number
- CN2646371Y CN2646371Y CN 200320111446 CN200320111446U CN2646371Y CN 2646371 Y CN2646371 Y CN 2646371Y CN 200320111446 CN200320111446 CN 200320111446 CN 200320111446 U CN200320111446 U CN 200320111446U CN 2646371 Y CN2646371 Y CN 2646371Y
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- cover
- slips
- drilling
- adapter sleeve
- break
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Abstract
The utility model discloses a specialized drilling and milling tool which is used for drilling a bridge plug and milling of the under well operation in an oil field. The utility model aims at disposing the problem of drilling milling and salvaging of drilling bridge plug. The drilling and milling tool combines the drilling milling operation with the salvaging operation together, the drilling milling and salvaging operations of drilling the bridge plug can be finished within one pipe string. Wherein, the upper end of a connecting sleeve 3 is closely and rotatablely connected with the supporting steel ball 2 of an upper joint 1. A slip 11 is designed as a dissecting type and the upper part has a linking steps. The utility model mainly is used in the layer position adjustment of sealing the well by the drilling bridge plug in the oil field, and also has the advantages of easy salvaging and convenient construction.
Description
Technical field: the utility model belongs to a kind of and is used for boring bridging plug bores the special jewel miller tool that mills when oilfield downhole operation.
Background technology: at present, along with oilfield polymer flooding transforms to second class reservoir, require that to return the well of shutoff on carrying out more and more with boring bridging plug, can bore bridging plug is that a kind of permanent type can bore packer, and the deblocking mode is milled deblocking for boring.Adopted flat junk mill to bore and mill to boring bridging plug in the past, the problem that existence can't salvage out with remainder, development can be bored the bridging plug packaged milling tool for this reason.Adopting this novel brill miller tool can finish φ 108mm can bore bridging plug and bore and remainder all to be salvaged after milling.
Summary of the invention: the purpose of this utility model provides to finish and can bore bridging plug and bore and to mill de-plugging, brill can be milled underground work that the back remainder pulls out simultaneously again with a kind of novel bridging plug packaged milling tool that bores.
The utility model mainly by top connection, steel ball, adapter sleeve, outer adapter sleeve, anti-rotation pin, central tube, brill mill cover, spring, spring base, fixture block, slips, break the cover and the cover milling head form.
Wherein the adapter sleeve upper end is rotated to contact by steel ball with top connection and is linked to each other, outer adapter sleeve upper end and the screwed connection of top connection lower end, lower end and brill mill the set upper side screwed connection, four inlet openings are arranged on the central tube, its upper end and the screwed connection of adapter sleeve lower end, its lower end with break the set upper side screwed connection, brill mills cover lower end and the upper end screwed connection of cover milling head, spring base, spring, slips is connected with end in contact under the central tube successively, fixture block welds with breaking cover, and fixture block places in the slip groove, and breaking has a taper hole with the level in the cover, contact with the slips conical surface, and between each screwed connection part dowel fixes is arranged all.
Slip design is a dissection type, and the interlock step is arranged at top, and the male cone (strobilus masculinus) of slips bottom is connected with breaking the cover taper hole, and the slips endoporus has hard and sharp slip insert.
Brill mills cover and breaks between the cover annular space and had and enough cross the hydrospace, and there is continuous mistake aquaporin cover inside and outside surface of milling head and end.
The utlity model has following advantage:
1. bore and mill and the salvaging integrated design, one-trip string is promptly finished the brill that can bore bridging plug and is milled, salvages.
2. adopt the slips structure of dissection type, two slips are moved up and down link easier chucking junk mutually.
3. can bore miller tool safety when breaking cover and can guarantee the card tubing string, all trip out.
4. provide technical support for boring the multistage use of bridging plug.
Description of drawings: Fig. 1 is the utility model structure diagram;
Fig. 2 is on-the-spot the bored bridging plug structure diagram that uses.
The specific embodiment: the utility model mainly by top connection 1, steel ball 2, adapter sleeve 3, outer adapter sleeve 4, anti-rotation pin 5, central tube 6, bore and mill cover 7, spring 8, spring base 9, fixture block 10, slips 11, break cover 12 and cover milling head 13 is formed.
Wherein adapter sleeve 3 upper ends are rotated to contact by steel ball 2 with top connection 1 and are linked to each other, outer adapter sleeve 4 upper ends and top connection 1 lower end screwed connection, lower end and brill mill cover 7 upper end screwed connections, four inlet openings are arranged on the central tube 6, its upper end and adapter sleeve 3 lower end screwed connections, its lower end with break the cover 12 upper end screwed connections, brill mills cover 7 lower ends and the 13 upper end screwed connections of cover milling head, spring base 9, spring 8, slips 11 is connected with 6 times end in contact of central tube successively, fixture block 10 welds with breaking cover 12, and fixture block 10 places in slips 11 grooves, and breaking in the cover 12 has a taper hole with the level, contact with the slips conical surface, and all have pin 5 fixing between each screwed connection part.
Slips 11 is designed to dissection type, and the interlock step is arranged at top, and its effect one is when expanding outside two slips, connects mutually not misplace; Two is two slips when moving up and down, and guarantees not separatedly synchronously, and the male cone (strobilus masculinus) of slips 11 bottoms is connected with breaking cover 12 taper holes, and slips 11 endoporus have hard and sharp slip insert.
There are four hydrophthalmias central tube 6 upper ends, bore to mill cover 7 and to break between the cover 12 annular space and had and enough cross the hydrospace, and there is continuous aquaporin cover milling head 13 inside and outside surfaces and end, guarantee when cover mills the anti-well-flushing that follows.
Break cover 12 for safety device of the present utility model, its objective is at drill bit to be hampered maybe need trip out tubing string the time, can make to bore and mill tubing string safety and trip out.
Because the existence of steel ball makes part 1,4,7,13 when brill mills rotation, part 3,6,9,11,12 does not rotate, and mills in the process at brill, makes slips can block the central tube that can bore bridging plug, guarantees that one-trip string can be finished to bore to mill and salvage.
During on-the-spot the use, the utility model top connection 1 is milled tubing string with brill and is connected.Slowly transferring drilling tool goes in the well, when cover milling head 13 touches can bore the bridging plug upper surface time, begin to execute brill, the central tube 14 that can bore bridging plug in drilling process enters breaks cover 12, will push away on the slips 11, compression spring 8, slips 11 is thrown off break cover 12 taper holes up and separate gradually, central tube 14 enters slips 11, and this moment, slips 11 was depressed under the spring force effect, can bore bridging plug central tube 14 and block, and give central tube 15 with initial clamping force.After the lower slips 15 that can bore bridging plug is worn away, on carry drilling tool, under initial clamping force effect, it is 12 up to break cover, slips 11, breaks that male cone (strobilus masculinus)s are adjacent in the cover 12, produces radially clamping force, central tube 14 is blocked, carry brill and can pull out and can bore bridging plug central tube 14 and all the other parts.
Claims (3)
1, a kind of novel bridging plug packaged milling tool that bores is characterized in that: it mainly by top connection (1), steel ball (2), adapter sleeve (3), outer adapter sleeve (4), anti-rotation pin (5), central tube (6), bore and mill cover (7), spring (8), spring base (9), fixture block (10), slips (11), break cover (12) and overlap milling head (13) and form;
Wherein adapter sleeve (3) upper end is rotated to contact by steel ball (2) with top connection (1) and is linked to each other, outer adapter sleeve (4) upper end and top connection (1) lower end screwed connection, lower end and brill mill cover (7) upper end screwed connection, four inlet openings are arranged on the central tube (6), its upper end and adapter sleeve (3) lower end screwed connection, its lower end with break screwed connection on the cover (12), brill mills cover 7 lower ends and cover milling head (13) upper end screwed connection, spring base (9), spring (8), slips (11) is connected with end in contact under the central tube (6) successively, fixture block (10) with break cover (12) and weld, fixture block (10) places in slips (11) groove, break a taper hole with the level is arranged in the cover (12), contact with slips (11) conical surface, and all have pin (5) fixing between each screwed connection part.
2, a kind of novel bridging plug packaged milling tool that bores according to claim 1, it is characterized in that described slips (11) is designed to dissection type, the interlock step is arranged at top, the male cone (strobilus masculinus) of slips (11) bottom with break cover (12) taper hole and be connected, slips (11) endoporus has hard and sharp slip insert.
3, a kind of novel bridging plug packaged milling tool that bores according to claim 1 is characterized in that described brill mills cover (7) and breaks between the cover (12) annular space and had and enough cross the hydrospace, and there is the continuous aquaporin of crossing cover inside and outside surface of milling head (13) and end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320111446 CN2646371Y (en) | 2003-10-14 | 2003-10-14 | Novel packaged milling tool for drillable bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320111446 CN2646371Y (en) | 2003-10-14 | 2003-10-14 | Novel packaged milling tool for drillable bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646371Y true CN2646371Y (en) | 2004-10-06 |
Family
ID=34305189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320111446 Expired - Lifetime CN2646371Y (en) | 2003-10-14 | 2003-10-14 | Novel packaged milling tool for drillable bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646371Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536147A (en) * | 2011-12-28 | 2012-07-04 | 中国石油天然气股份有限公司 | Extrusion-injection releasable socket |
| CN104314503A (en) * | 2014-11-06 | 2015-01-28 | 长江大学 | Special catching sleeve for coiled tubing fish |
| CN116146135A (en) * | 2023-04-23 | 2023-05-23 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
-
2003
- 2003-10-14 CN CN 200320111446 patent/CN2646371Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536147A (en) * | 2011-12-28 | 2012-07-04 | 中国石油天然气股份有限公司 | Extrusion-injection releasable socket |
| CN102536147B (en) * | 2011-12-28 | 2014-08-06 | 中国石油天然气股份有限公司 | Extrusion-injection releasable socket |
| CN104314503A (en) * | 2014-11-06 | 2015-01-28 | 长江大学 | Special catching sleeve for coiled tubing fish |
| CN104314503B (en) * | 2014-11-06 | 2016-11-16 | 长江大学 | A kind of special fishing socket of coiled tubing fish |
| CN116146135A (en) * | 2023-04-23 | 2023-05-23 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131014 Granted publication date: 20041006 |