CN206360672U - Mechanical set drags for integrated tool - Google Patents
Mechanical set drags for integrated tool Download PDFInfo
- Publication number
- CN206360672U CN206360672U CN201621362398.4U CN201621362398U CN206360672U CN 206360672 U CN206360672 U CN 206360672U CN 201621362398 U CN201621362398 U CN 201621362398U CN 206360672 U CN206360672 U CN 206360672U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- casing section
- section mill
- torsion pass
- fishing tool
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model is related to a kind of mechanical set and drags for integrated tool.Fishing tool including set milling outer barrel and in set milling outer barrel, top connection, casing section mill one, casing section mill two, casing section mill three and set milling head, which are sequentially connected with, is collectively forming set milling outer barrel；Connection throttling depression bar in torsion pass cylinder and message cylinder, top connection more than fishing tool is sequentially connected with, spring is set between throttling depression bar and torsion pass cylinder；Tight mechanism of locking is set outside message cylinder；Torsion pass key and lock ball mechanism are set between torsion pass cylinder and casing section mill two, is set in the annular space of fishing tool and casing section mill three and releases ball cylinder, lower retaining mechanism is set between casing section mill three and set milling head.The instrument is solved the problem of fishing tool is damaged during covering milling, and fishing tool is pushed away under pitching because not needing, and also overcomes the problem of fishing tool may be less than salvaging position or being poorly sealed.
Description
Technical field
The utility model is related to underground workover tool in oil field development, and particularly a kind of mechanical set drags for integrated tool.
Background technology
Oil field development enters the middle and later periods, and tubing string sand card and cement card are relatively common down-hole accidents, handles this kind of underground
The traditional method of accident is：First descend packaged milling tool to clear up annular space, then play out milled sleeve, then tripping in fishing tool is salvaged
Unfreezing is operated, and this operating method is although reliable but inefficient.Some existing sets drag for integration tool, by this two kinds of works
Skill unites two into one, and common way is that double thread joint is processed in milling pipe rear end, and minor thread connects die nipple, female coupling tap or drags for anchor
Deng major thread connection casing section mill.This instrument is during set milling, when fishing tool is contacted with quilt cover milling top of fish, further set
Milling may destroy fishing tool, and die nipple, female coupling tap may damage salvaging screw thread, drag for lance and may damage and drag for lance tooth, such case is very
The application of such technique is limited in big degree.
The controllable type set milling fishing integrated tool of the Zhang Chengjiang designs of Jiangsu oilfield, its principle is by conventional Fishing Tools
Load after improvement in casing section mill, using hydraulic drive piston principle, suppressed by ground pitching and change downhole integrated instrument
Working condition.When the instrument in horizontal well in use, because the flushing of horizontal well has difficulties, steel ball may it is not in place or by
The debris such as sand stop can not in place or seal failure, and instrument then can not normal work.
The content of the invention
To solve the above problems, having invented a kind of mechanical set drags for integrated tool, the instrument is solved in set milling process
The problem of middle damage fishing tool, fishing tool is pushed away under pitching because not needing, also overcoming fishing tool may be less than salvaging position
Or it is poorly sealed the problem of.
The present invention is adopted the following technical scheme that：
A kind of mechanical set drags for integrated tool, including set milling outer barrel and the fishing tool in set milling outer barrel, on
Joint, casing section mill one, casing section mill two, casing section mill three and set milling head, which are sequentially connected with, is collectively forming set milling outer barrel；It is more than fishing tool
Connection throttling depression bar in torsion pass cylinder and message cylinder, top connection is sequentially connected with, spring is set between throttling depression bar and torsion pass cylinder；
Tight screw thread of locking is set outside message cylinder, correspondingly sets and locks in the inwall annular groove between casing section mill one and casing section mill two
Ring；Torsion pass drum outer wall sets torsion pass key, correspondingly sets torsion pass groove in the inwall of casing section mill two；The periphery of torsion pass cylinder sets lock ball
Lock ball is placed in groove, the annular space between lock ball groove and casing section mill two, the inwall for being located at casing section mill two in lock ball with top is set
Ball groove is released, is set below lock ball in the annular space of fishing tool and casing section mill three and releases ball cylinder, between casing section mill three and set milling head
Inwall annular groove in lower lock ring is set, accordingly releasing locking screw under ball drum outer wall is set.
Compared with prior art, the beneficial effects of the present invention are：
As a result of lock ball retaining mechanism, fishing tool is maintained at high-order in casing section mill, during set milling, salvages work
Tool will not be contacted with top of fish, thus will not produce damage of the top of fish to fishing tool.When release ball cylinder push up lock ball enter release
When in ball groove, lock ball release, fishing tool under the promotion of spring under be advanced into salvaging state, upper lock ring and upper locking screw are common
It ensure that fishing tool will not be retreated with the upper retaining mechanism formed, so that the pressurizing load required for providing fishing, solution
The problem of fishing tool of having determined is possible not in place.
Brief description of the drawings
The present invention is above simply described, one is entered with reference next to the drawing of the specific examples below of the description present invention
Step, in detail the narration present invention.These drawings only describe some typical embodiments of the invention, therefore are not construed as limit
The scope of the present invention processed.In these drawings：
Fig. 1 is that the mechanical set of the present invention drags for the structural representation of integrated tool.
Fig. 2 is the structural representation of throttling depression bar.
Fig. 3 be Fig. 1 be B enlarged drawing.
Fig. 4 is A-A sectional views in Fig. 1.
Fig. 5 is that to drag in the structural representation of integrated tool, figure be that fishing tool is descending laggard for the mechanical set of the present invention
Enter to salvage the state of position.
Fig. 6 is the enlarged drawing at C in Fig. 1.
Fig. 7 is the enlarged drawing at D in Fig. 1.
Embodiment
As shown in Fig. 1~Fig. 4, Fig. 6 and Fig. 7, mechanical set drags for integrated tool, including set milling outer barrel and installed in set milling
Fishing tool 14 in outer barrel, top connection 1, casing section mill 1, casing section mill 2 11, casing section mill 3 15 and set milling head 19 are sequentially connected with
It is collectively forming set milling outer barrel；Fishing tool more than 14 is sequentially connected with connection throttling pressure in torsion pass cylinder 10 and message cylinder 3, top connection 1
Bar 2, spring 6 is set between throttling depression bar 2 and torsion pass cylinder 10；Tight screw thread 5 of locking is set outside message cylinder 3, correspondingly in set
Upper lock ring 7 is set in the inwall annular groove between milling cylinder 1 and casing section mill 2 11；Torsion pass 10 outer walls of cylinder set torsion pass key 9, correspondingly
In the inwall of casing section mill 2 11, torsion pass groove 8 is set；The periphery of torsion pass cylinder 10 sets lock ball groove 31, in lock ball groove 31 and casing section mill two
Lock ball 13 is placed in annular space between 11, the inwall for being located at casing section mill 2 11 in lock ball 13 with top, which is set, releases ball groove 12, in lock
Ball sets in the annular space of fishing tool 14 and casing section mill 3 15 below 13 and releases ball cylinder 16, between casing section mill 3 15 and set milling head 19
Inwall annular groove in lower lock ring 18 is set, accordingly releasing locking screw 17 under ball 16 outer walls of cylinder are set.
Upper lock ring 7 together form retaining mechanism, lower lock ring 18 and the common shape of lower locking screw 17 with upper locking screw 5
Into lower retaining mechanism, either above retaining mechanism still descends retaining mechanism to be all known technology, in underground hydraulic packing device
Generally use.
According to the purpose or demand of fishing, described fishing tool 14 can select die nipple, female coupling tap, drag for lance or drag for
Cylinder.
The length of set milling head 19 is adjusted according to job requirements.
For the ease of field operation, the operating personnel at scene can be allowed to judge and observe in time after lock ball 13 discharges, set
Pressure indicating mechanism.Pressure indicating mechanism is collectively formed by top connection 1, throttling depression bar 2 and message cylinder 3.As shown in Fig. 2 institute
Upper disk 21, mid-game 22 and lower wall 23 are set on the throttling depression bar 2 stated, in respectively setting axial hole, mid-game 22 on upper disk 21 and lower wall 23
There is annular clearance between top connection 1, it is allowed to which circulating liquid is passed freely through.When message cylinder 3 is up to up to above-mentioned annular clearance simultaneously
When blocking the annular clearance, just block in the circulation canal of liquid, milled sleeve and just occurred that pressure rapidly rises, ground face-pumping
Press the phenomenon flown up.
Annular space size between mid-game 22 and top connection 1 is more than wall thickness 0.1mm~2mm of message cylinder 3, or, mid-game 22 with
Annular space size between top connection 1 is less than the wall thickness of message cylinder 3, can reach that pressure jumps the purpose of instruction.
As shown in figure 4, described torsion pass groove 8 and torsion pass key 9 can be two and be symmetrical arranged or other quantity
Setting, such as 1,3 or 4, this can be determined according to intensity.
Described mechanical set drags for the application method of integrated tool, and its step is：
A, mechanical set dragged for the lower end that integrated tool is connected on fishing string, deliver to top of fish top, turn on pump well-flushing；
B, lower salvaging put tubing string pressure cuffs milling；
After c, ground pump pressure are flown up, more than fishing string 1m is above carried；
Junk is simultaneously salvaged in d, again decentralization fishing string fish finding top.
As shown in Figure 5, in stepb, during pressure cuffs milling, the top of fish 51, which is reached, releases 16 lower ends of ball cylinder, promotes
Release ball cylinder up, releasing ball cylinder, to push up lock ball 13 up, and lock ball 13 drives torsion pass cylinder 10, fishing tool 14 together up simultaneously
And compression spring 6, when lock ball 13, which is reached, releases ball groove 12, lock ball 13 is moved radially outward, and lock ball groove 31 loses constraint.Above carry and beating
Drag for after tubing string, in the presence of gravity and spring, the descending stretching of fishing tool 14 releases ball cylinder 16 and enters salvaging position, meanwhile, lock
Ring 7 is engaged with upper locking screw 5, prevents fishing tool from retreating.
Embodiment as described herein is only exemplary embodiments, but is not limited only to these embodiments, those skilled in the art
Member can make modification under without departing from the spirit of the present invention and enlightenment.Aspect disclosed herein there may be many changes,
Combination and modification, and be within, therefore, protection domain is not limited only to explanation above, but according to right
It is required that to define, protection domain includes all equivalents of the target of claim.
Claims (5)
1. a kind of mechanical set drags for integrated tool, including set milling outer barrel and the fishing tool in set milling outer barrel, above connect
Head（1）, casing section mill one（4）, casing section mill two（11）, casing section mill three（15）With set milling head（19）It is sequentially connected with and is collectively forming outside set milling
Cylinder；Characterized in that, fishing tool（14）Torsion pass cylinder is sequentially connected with above（10）With message cylinder（3）, top connection（1）Interior connection section
Flow depression bar（2）, in throttling depression bar（2）With torsion pass cylinder（10）Between spring is set（6）；In message cylinder（3）It is outer that tight spiral shell of locking is set
Line（5）, correspondingly in casing section mill one（4）With casing section mill two（11）Between inwall annular groove in upper lock ring is set（7）；Torsion pass cylinder
（10）Outer wall sets torsion pass key（9）, correspondingly in casing section mill two（11）Inwall set torsion pass groove（8）；Torsion pass cylinder（10）It is outer
Week sets lock ball groove（31）, in lock ball groove（31）With casing section mill two（11）Between annular space in place lock ball（13）, in lock ball
（13）Casing section mill two is located at top（11）Inwall set release ball groove（12）, in lock ball（13）Below in fishing tool（14）With
Casing section mill three（15）Annular space in set release ball cylinder（16）, casing section mill three（15）With set milling head（19）Between inwall annular groove in set
Put lower lock ring（18）, accordingly releasing ball cylinder（16）Outer wall sets lower locking screw（17）.
2. mechanical set according to claim 1 drags for integrated tool, it is characterised in that described fishing tool（14）It is
Die nipple, female coupling tap, drag for lance or dipper.
3. mechanical set according to claim 1 drags for integrated tool, it is characterised in that described throttling depression bar（2）On
Disk in setting（21）, mid-game（22）And lower wall（23）, Yu Shangpan（21）And lower wall（23）On respectively set axial hole, mid-game（22）With it is upper
Joint（1）Between annular space size be more than message cylinder（3）Wall thickness 0.1mm~2mm.
4. mechanical set according to claim 1 drags for integrated tool, it is characterised in that described throttling depression bar（2）On
Disk in setting（21）, mid-game（22）And lower wall（23）, Yu Shangpan（21）And lower wall（23）On respectively set axial hole, mid-game（22）With it is upper
Joint（1）Between annular space size be less than message cylinder（3）Wall thickness.
5. mechanical set according to claim 1 drags for integrated tool, it is characterised in that described torsion pass groove（8）And biography
Turn round key（9）It is two and is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362398.4U CN206360672U (en) | 2016-12-13 | 2016-12-13 | Mechanical set drags for integrated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362398.4U CN206360672U (en) | 2016-12-13 | 2016-12-13 | Mechanical set drags for integrated tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206360672U true CN206360672U (en) | 2017-07-28 |
Family
ID=59374723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362398.4U Withdrawn - After Issue CN206360672U (en) | 2016-12-13 | 2016-12-13 | Mechanical set drags for integrated tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206360672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761520A (en) * | 2016-12-13 | 2017-05-31 | 中国石油化工股份有限公司 | Mechanical set drags for integrated tool and its application method |
-
2016
- 2016-12-13 CN CN201621362398.4U patent/CN206360672U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761520A (en) * | 2016-12-13 | 2017-05-31 | 中国石油化工股份有限公司 | Mechanical set drags for integrated tool and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170728 Effective date of abandoning: 20230711 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170728 Effective date of abandoning: 20230711 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |