CN108590559A - A kind of down-hole fishing device - Google Patents
A kind of down-hole fishing device Download PDFInfo
- Publication number
- CN108590559A CN108590559A CN201810761414.4A CN201810761414A CN108590559A CN 108590559 A CN108590559 A CN 108590559A CN 201810761414 A CN201810761414 A CN 201810761414A CN 108590559 A CN108590559 A CN 108590559A
- Authority
- CN
- China
- Prior art keywords
- hole
- pin
- handgrip
- fishing device
- bearing
- 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.)
- Granted
Links
- 210000002445 nipple Anatomy 0.000 claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Fishing Rods (AREA)
Abstract
The present invention relates to a kind of down-hole fishing devices；Belong to oil drilling fishing tool technical field.It is oriented on short circuit and top connection is equipped with by intermediate short-section thread, it is installed with load-bearing plate in intermediate pipe nipple, bearing pin is housed on load-bearing plate, it is fixed equipped with slide lock on bearing pin, handgrip hinged seat is equipped with by clamp nut on the bearing pin of the fixed lower section of slide lock, multiple handgrips are evenly equipped with by axis pin on the circumference of handgrip hinged seat.When the down-hole fishing device works, by the fixed sliding downlink of slide lock, compressing handgrip inwardly collapses, and to wait for that fishing tool fully clamps, conveniently timely can rise by remaining drilling tool in well, thus substantially increase the reliability of salvaging；It solves the problems, such as that existing drilling tool is buried to cause any property loss.The down-hole fishing device is simple in structure, reasonable design, salvages and uses especially suitable for down-hole equipment.
Description
Technical field
The present invention relates to a kind of down-hole fishing devices；Belong to oil drilling fishing tool technical field.
Background technology
In oil drilling, it is many times not sure to the structure of layer, needs heuristically to creep into bottom, due to ground
Matter design is not consistent with actual condition, causes certain well section blocked portions frequent occurrence the case where；Once blocked portion situation occurs, usually
Drill rod breaking, drill bit can be caused the down-hole accidents such as to fall, if in time remaining drilling tool in well can not be risen, can cause drill bit,
The important drilling tool such as impactor is buried, to cause the loss of very big property.
Invention content
It is an object of the invention to：A kind of simple in structure, reasonable design is provided, it can be conveniently timely by remaining drilling tool in well
It rises, the down-hole fishing device to cause any property loss is buried to avoid drilling tool.
The technical scheme is that：
A kind of down-hole fishing device, including top connection, intermediate pipe nipple, it is oriented to that short circuit, bearing pin, slide lock be fixed and handgrip；Its
It is characterized in that：It is oriented on short circuit and top connection is equipped with by intermediate short-section thread, be installed with load-bearing plate in intermediate pipe nipple, hold
Bearing pin is housed on disk again, it is fixed equipped with slide lock on bearing pin, pass through on the bearing pin of the fixed lower section of slide lock and compresses spiral shell
Mother is equipped with handgrip hinged seat, and multiple handgrips are evenly equipped with by axis pin on the circumference of handgrip hinged seat.
The bearing pin lower end is provided with pilot hole, is equipped with by c-type snap ring in pilot hole and triggers push rod.
Spacer pin nail hole is radially provided on bearing pin at the top of the pilot hole, sliding corresponding with spacer pin nail hole
Pin jack is provided on lock sleeve.
Position-limitting pin is equipped with by conical compression spring in the spacer pin nail hole, one end of position-limitting pin extends to
Position-limitting pin outer end of hole, the position-limitting pin and pin jack contact for extending to position-limitting pin outer end of hole are inserted into connection.
The triggering push rod is T-type body, and the top for triggering push rod is slope surface.
Slope surface slot corresponding with slope surface at the top of triggering push rod is provided on the position-limitting pin, position-limitting pin passes through slope surface
Slot is connected with triggering push rod sliding.
By washer equipped with limit compressed spring on bearing pin between the movable lock sleeve and load-bearing plate.
The handgrip bottom is in hook solid, and support element is provided between handgrip and handgrip hinged seat.
Limiting buffer ring is housed on the bearing pin above the handgrip hinged seat.
The support element is made of slide bar, support spring and jack rod sleeve, and jack rod sleeve, slide bar are fixed on handgrip hinged seat
Slide bar is slidably fitted in set, one end of slide bar is fixedly connected with handgrip；It is set with support spring on jack rod sleeve and slide bar.
The load-bearing plate is cylinder, and the center of load-bearing plate is provided with mounting hole, the load-bearing plate of mounting hole periphery
On be evenly equipped with liquid flow hole.
The beneficial effects of the invention are as follows：
When the down-hole fishing device works, by the fixed sliding downlink of slide lock, compressing handgrip inwardly collapses, to wait beating
Fishing combined tool fully clamps, and conveniently timely can rise by remaining drilling tool in well, thus substantially increase the reliability of salvaging；It solves
Existing drilling tool is buried the problem of causing any property loss.The down-hole fishing device is simple in structure, reasonable design, especially suitable for well
Lower drilling tool, which is salvaged, to be used.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the load-bearing plate of the present invention；
Fig. 3 is the structural schematic diagram of the handgrip hinged seat of the present invention；
Fig. 4 is the structural schematic diagram of the triggering push rod of the present invention；
Fig. 5 is enlarged structure schematic diagram at the A in Fig. 1；
Fig. 6 is the structural schematic diagram of the position-limitting pin of the present invention；
Fig. 7 is the side structure schematic view of the position-limitting pin of the present invention；
Fig. 8 is enlarged structure schematic diagram at the B in Fig. 1；
Fig. 9 is the working state schematic representation of the present invention；
Figure 10 is enlarged structure schematic diagram at the A in Fig. 9.
In figure：1, top connection, 2, intermediate pipe nipple, 3, be oriented to short circuit, 4, bearing pin, 5, slide lock it is fixed, 6, handgrip, 7, hold
Disk again, 8, mounting hole, 9, liquid flow hole, 10, washer, 11, limit compressed spring, 12, clamp nut, 13, handgrip hinged seat, 14, C
Type snap ring, 15, triggering push rod, 16, conical compression spring, 17, position-limitting pin, 18, slope surface slot, 19, engaging lug, 20, support element,
21, slide bar, 22, support spring, 23, jack rod sleeve, 24, wait for fishing tool, 25, limiting buffer ring.
Specific implementation mode
The down-hole fishing device includes top connection 1, intermediate pipe nipple 2, is oriented to short circuit 3, bearing pin 4, slide lock fixed 5 and grabs
Hand 6；It is oriented on short circuit 3 and top connection 1 is equipped with by 2 screw thread of intermediate pipe nipple, load-bearing plate 7 is installed in intermediate pipe nipple 2.In
Between pipe nipple 2 inner wall on be provided with protrusion, the lower face of load-bearing plate 7 and projection contacts, upper surface and the top connection 1 of load-bearing plate 7
Lower face contact, thus by 7 clamping fixed of load-bearing plate.Load-bearing plate 7 is cylinder, and the center of load-bearing plate 7 is provided with peace
Hole 8 is filled, liquid flow hole 9 is evenly equipped on the load-bearing plate 7 of 8 periphery of mounting hole.Bearing pin 4 is equipped with by mounting hole 8 on load-bearing plate 7, is held
Slide lock fixed 5 is housed again, slide lock fixed 5 is goblet, and the centre of slide lock fixed 5 is provided with installation and connects on pin 4
Hole is connect, slide lock fixed 5 is slidably mounted on by installing connecting hole on bearing pin 4.
By washer 10 equipped with limit compressed spring 11 on bearing pin 4 between movable lock sleeve 5 and load-bearing plate 7.Load-bearing
4 lower end of pin is provided with pilot hole（Counterbore）, pilot hole is interior to be equipped with triggering push rod 15 by c-type snap ring 14.Triggering push rod 15 is T-type
The top of body, triggering push rod 15 is slope surface.It is radially provided with spacer pin nail hole, position-limitting pin on bearing pin 4 at the top of pilot hole
Hole is connected to pilot hole；Position-limitting pin 17 is equipped with by conical compression spring 16 in spacer pin nail hole, with spacer pin nail hole pair
It is provided with pin jack on the installation connecting hole for the slide lock fixed 5 answered.One end of position-limitting pin 17 extends to spacer pin nail hole
Outer end, the position-limitting pin 17 and pin jack contact for extending to position-limitting pin outer end of hole are inserted into connection, are existed by position-limitting pin 17
Insertion in pin jack, to realize fixed 5 being locked on bearing pin 4 of slide lock.
Slope surface slot 18 corresponding with triggering 15 top slope surface of push rod is provided on position-limitting pin 17, triggering push rod 15 passes through it
The slope surface at top is connect with the cooperation of slope surface slot 18 with 17 sliding contact of position-limitting pin.Squeezing in triggering push rod 15 in the course of work
Under pressure effect, position-limitting pin 17 can move in spacer pin nail hole, to be exited in pin jack, realize slide lock fixed 5
The releasing that is locked on bearing pin 4.
Handgrip hinged seat 13, handgrip hinged seat are equipped with by clamp nut 12 on the bearing pin 4 of fixed 5 lower section of slide lock
13 be cylindrical body, is evenly equipped with 3 engaging lugs 19 in 120 degree on the circumference of handgrip hinged seat 13, is filled by axis pin on engaging lug 19
There is handgrip 6.6 bottom of handgrip is in hook solid, and support element 20 is provided between handgrip 6 and handgrip hinged seat 13.
Support element 20 is made of slide bar 21, support spring 22 and jack rod sleeve 23, and jack rod sleeve is fixed on handgrip hinged seat 13
23, slide bar 21 is slidably fitted in jack rod sleeve 23, and one end of slide bar 21 is fixedly connected with handgrip 6；On jack rod sleeve 23 and slide bar 21
It is set with support spring 22；The effect of jack rod sleeve 23 and slide bar 21 is to provide an assembly foundation for support spring 22, so as to grab
6 moment of hand keeps the trend opened, and in the course of work, slide bar 21 can stretch in jack rod sleeve 23, but not depart from slide bar 21 in cunning
The insert state of rod set 23.
The c-type snap ring 14 of the down-hole fishing device can prevent triggering push rod 15 from being slipped in pilot hole.The underground fishing fills
When setting salvage, it will first be arrived at the corresponding position of well depth under the fishing device, the fishing device handgrip 6 is in maximum at this time
Open state, slide lock fixed 5 are in locking state with bearing pin 4, and limit compressed spring 11 is in compress energy storage state；Under continuing
The fishing device is put, makes to wait for 24 upper-end contact of fishing tool to the push-plate for triggering 15 lower end of push rod, to will slowly trigger push rod
15 push up along pilot hole, during this, since the top of triggering push rod 15 is slope surface；Be provided on position-limitting pin 17 with
Trigger the corresponding slope surface slot 18 of 15 top slope surface of push rod, triggering push rod 15 by the cooperation of slope surface at the top of it and slope surface slot 18 with
17 sliding contact of position-limitting pin connects；During triggering 15 uplink of push rod, position-limitting pin 17 is squeezed by the slope surface at the top of it
On slope surface slot 18, so that position-limitting pin 17 is compressed taper compressed spring 16, and bounce back in spacer pin nail hole, make its end
It is exited out of pin jack, realizes that slide lock fixed 5 is released with 4 locking state of bearing pin, while limiting the pressure of compressed spring 11
Contracting energy accumulating state releases.
At the same time, drilling fluid is injected by top connection 1, drilling fluid is through the effect of liquid flow hole 9 uniformly distributed on load-bearing plate 7 to cunning
On dynamic lock sleeve 5, while the collaboration of both limit compressed springs 11 being coordinated to push slide lock fixed 5 along 4 downlink of bearing pin.Until with
The limiting buffer ring 25 being arranged above the handgrip hinged seat 13 on bearing pin 4 contacts；The effect of limiting buffer ring 25 is to sliding
The downlink of lock sleeve 5 is limited.
Close drilling fluid；During slide lock fixed 5 glides, fixed 5 lower end of slide lock pushes（It squeezes）Three are grabbed
Inwardly Stepwize Shrink closes up hand 6 simultaneously, during the contraction of handgrip 6 is closed up while support element 20 is compressed, with slide lock fixed 5
It glides, three handgrips 6 will wait for that the protrusion of fishing tool 24 is caught during contraction is closed up, by the crotch of its bottom, realize
Handgrip 6 and waiting for the locked of fishing tool 24, handgrip 6 is kept with the locking state of fishing tool 24 is waited for by limit compressed spring 11,
Above propose the salvaging that down-hole equipment can be realized in the down-hole fishing device.
The down-hole fishing device is simple in structure, reasonable design, oppresses handgrip 6 by the downlink of slide lock fixed 5 and inwardly receives
Condensation holds together to wait for that fishing tool 2 clamps, and the clamped condition of handgrip 6 is kept by limiting compressed spring 11；Thus significantly
Improve the reliability of salvaging；Solve the problems, such as that existing drilling tool is buried caused property loss.
Claims (10)
1. a kind of down-hole fishing device, including top connection（1）, intermediate pipe nipple（2）, be oriented to short circuit（3）, bearing pin（4）, slide lock
It is fixed（5）And handgrip（6）；It is characterized in that：It is oriented to short circuit（3）It is upper to pass through intermediate pipe nipple（2）Screw thread is equipped with top connection（1）,
Intermediate pipe nipple（2）Inside it is installed with load-bearing plate（7）, load-bearing plate（7）It is upper that bearing pin is housed（4）, bearing pin（4）It is upper that sliding is housed
Lock sleeve（5）, slide lock is fixed（5）The bearing pin of lower section（4）On pass through clamp nut（12）Handgrip hinged seat is installed（13）,
Handgrip hinged seat（13）Circumference on multiple handgrips are evenly equipped with by axis pin（6）.
2. a kind of down-hole fishing device according to claim 1, it is characterised in that：The bearing pin（4）Lower end is arranged
There is pilot hole, passes through c-type snap ring in pilot hole（14）Equipped with triggering push rod（15）.
3. a kind of down-hole fishing device according to claim 2, it is characterised in that：Bearing pin at the top of the pilot hole
（4）Upper radial direction is provided with spacer pin nail hole, and slide lock corresponding with spacer pin nail hole is fixed（5）On be provided with pin jack.
4. a kind of down-hole fishing device according to claim 3, it is characterised in that：Pass through cone in the spacer pin nail hole
Shape compressed spring（16）Position-limitting pin is installed（17）, position-limitting pin（17）One end extend to position-limitting pin outer end of hole, extend
To the position-limitting pin of position-limitting pin outer end of hole（17）It is inserted into and connects with pin jack.
5. a kind of down-hole fishing device according to claim 2, it is characterised in that：The triggering push rod（15）For T-type
Body triggers push rod（15）Top be slope surface.
6. a kind of down-hole fishing device according to claim 4, it is characterised in that：The position-limitting pin（17）Upper setting
Have and triggering push rod（15）The corresponding slope surface slot of top slope surface（18）, position-limitting pin（17）Pass through slope surface slot（18）With triggering push rod
（15）Sliding contact connects.
7. a kind of down-hole fishing device according to claim 3, it is characterised in that：The movable lock sleeve（5）With hold
Disk again（7）Between bearing pin（4）On pass through washer（10）Equipped with limit compressed spring（11）.
8. a kind of down-hole fishing device according to claim 1, it is characterised in that：The handgrip hinged seat（13）Top
Bearing pin（4）It is upper that limiting buffer ring is housed（25）；The handgrip（6）Bottom is in hook solid, handgrip（6）With handgrip hinged seat
（13）Between be provided with support element（20）.
9. a kind of down-hole fishing device according to claim 8, it is characterised in that：The support element（20）By slide bar
（21）, support spring（22）And jack rod sleeve（23）It constitutes, handgrip hinged seat（13）On be fixed with jack rod sleeve（23）, jack rod sleeve（23）
Inside it is slidably fitted with slide bar（21）, slide bar（21）One end and handgrip（6）It is fixedly connected；Jack rod sleeve（23）And slide bar（21）Upper set
Equipped with support spring（22）.
10. a kind of down-hole fishing device according to claim 7, it is characterised in that：The load-bearing plate（7）For cylinder
Body, load-bearing plate（7）Center be provided with mounting hole（8）, mounting hole（8）The load-bearing plate of periphery（7）On be evenly equipped with liquid flow hole
（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761414.4A CN108590559B (en) | 2018-07-12 | 2018-07-12 | Underground fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761414.4A CN108590559B (en) | 2018-07-12 | 2018-07-12 | Underground fishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108590559A true CN108590559A (en) | 2018-09-28 |
| CN108590559B CN108590559B (en) | 2024-03-22 |
Family
ID=63615348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810761414.4A Active CN108590559B (en) | 2018-07-12 | 2018-07-12 | Underground fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108590559B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057737A (en) * | 2018-10-31 | 2018-12-21 | 长江大学 | A kind of down-hole fishing device that can be operated repeatedly |
| CN109751005A (en) * | 2019-03-06 | 2019-05-14 | 长江大学 | A kind of underground fishing tool that can be operated repeatedly |
| CN110331954A (en) * | 2019-06-05 | 2019-10-15 | 张希录 | A kind of throw in catcher and its application method |
| CN110984896A (en) * | 2019-12-31 | 2020-04-10 | 中冶交通建设集团有限公司 | Tool for salvaging percussion bit of bored pile and construction method thereof |
| CN112696167A (en) * | 2019-10-23 | 2021-04-23 | 中国石油化工股份有限公司 | Underground fishing device |
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| CN208502712U (en) * | 2018-07-12 | 2019-02-15 | 长江大学 | A kind of down-hole fishing device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057737A (en) * | 2018-10-31 | 2018-12-21 | 长江大学 | A kind of down-hole fishing device that can be operated repeatedly |
| CN109057737B (en) * | 2018-10-31 | 2023-08-22 | 长江大学 | Repeatedly operable underground fishing device |
| CN109751005A (en) * | 2019-03-06 | 2019-05-14 | 长江大学 | A kind of underground fishing tool that can be operated repeatedly |
| CN109751005B (en) * | 2019-03-06 | 2023-08-22 | 长江大学 | Repeatedly operable underground fishing tool |
| CN110331954A (en) * | 2019-06-05 | 2019-10-15 | 张希录 | A kind of throw in catcher and its application method |
| CN110331954B (en) * | 2019-06-05 | 2021-11-09 | 张希录 | Throwing and fishing device and using method thereof |
| CN112696167A (en) * | 2019-10-23 | 2021-04-23 | 中国石油化工股份有限公司 | Underground fishing device |
| CN112696167B (en) * | 2019-10-23 | 2022-07-26 | 中国石油化工股份有限公司 | Underground fishing device |
| CN110984896A (en) * | 2019-12-31 | 2020-04-10 | 中冶交通建设集团有限公司 | Tool for salvaging percussion bit of bored pile and construction method thereof |
| CN110984896B (en) * | 2019-12-31 | 2022-04-26 | 中冶交通建设集团有限公司 | Tool for salvaging percussion bit of bored pile and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN108590559B (en) | 2024-03-22 |
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