CN209780822U - fishing spearhead locking fishing device - Google Patents
fishing spearhead locking fishing device Download PDFInfo
- Publication number
- CN209780822U CN209780822U CN201920585831.8U CN201920585831U CN209780822U CN 209780822 U CN209780822 U CN 209780822U CN 201920585831 U CN201920585831 U CN 201920585831U CN 209780822 U CN209780822 U CN 209780822U
- Authority
- CN
- China
- Prior art keywords
- spearhead
- arc
- locking
- fishing
- clamp
- 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.)
- Expired - Fee Related
Links
- 241001449342 Chlorocrambe hastata Species 0.000 title claims abstract description 103
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 16
- 239000011435 rock Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a fishing spearhead locking fishing device, which belongs to the technical field of drilling engineering, and comprises a drill rod joint, a locking clamp chamber and a fishing spearhead, wherein a translation channel for limiting translation of an arc-shaped left clamp and an arc-shaped right clamp is formed between a pipe bottom platform and a ring bottom platform; drag for the spearhead and be provided with sharp-pointed top, seted up the necking groove on dragging for the spearhead of tip top below, the tip top of dragging for the spearhead penetrates the ring end in proper order and drags for the spearhead cross bore hole and the pipe end and drag for the spearhead cross bore hole from the bottom of upwards penetrating, drag for the elastic tension of the tip top of spearhead and overcome left spring and right spring and outwards prop left clamp of arc and the right clamp of arc to both sides, when the necking groove shifts up and reaches the translation passageway, under the effect of the elastic tension of left spring and right spring, the necking groove of spearhead is dragged for to the inner arc edge subtend joint of the left clamp of arc and the right clamp of arc. The utility model discloses a drag for spearhead locking fishing device can lock the spearhead of dragging for of dead inner tube assembly, realizes powerful salvage, reaches and takes out the inner tube assembly, solves downthehole accident.
Description
Technical Field
the utility model belongs to the technical field of the drilling engineering technique and specifically relates to a drag for spearhead locking fishing device.
Background
generally, a conventional wireline core drill includes an outer tube assembly and an inner tube assembly disposed inside the outer tube assembly, and the inner tube assembly mainly includes a spearhead mechanism, a snapping positioning mechanism, a hanging mechanism, a single action mechanism, and an adjusting mechanism, which are sequentially connected from top to bottom. Under the normal condition of creeping into, after the repacking creeps into, transfer conventional fisher through coring winch, put in the back that targets in place through the fisher dead weight, hold the inner tube fishing spear, carry the inner tube assembly that will fill with the rock core and draw to the earth's surface. However, when accidents occur in the hole, such as drilling, the drilling tool and the inner pipe assembly are sintered with the rock at the bottom of the hole and cannot be lifted away from the bottom of the hole; drilling is run, and the drilling tool impacts the bottom of the hole, so that the drilling tool is upset and stuck; the diameter of a coring steel wire rope connected by a conventional fisher is 6.2mm or 7.87mm, the fishing hook is easily damaged by fatigue of the steel wire rope during fishing of the inner pipe, the inner pipe assembly cannot be pulled out, and drilling scrapping can be caused.
Disclosure of Invention
The technical task of the utility model is to solve the not enough of prior art, provide a fishing spearhead locking fishing device.
the technical scheme of the utility model is realized in the following way, the fishing spearhead locking fishing device of the utility model structurally comprises a drill rod joint, a locking hoop chamber and a fishing spearhead,
the drill rod joint is of a tubular structure, the lower section of the drill rod joint is provided with a stepped reducing section which is integrated with the drill rod joint and continuous, a stepped platform is formed between the stepped reducing section and the lower end of the drift diameter of the drill rod joint, external threads are arranged on the outer wall of the axial extension section of the stepped reducing section, a pipe bottom platform which is integrated with the stepped reducing section and continuous is arranged at the bottom of the stepped reducing section, and a pipe bottom fishing spearhead through hole is formed in the center of the pipe bottom platform;
an internal thread is formed in the inner wall of the top of a locking hoop chamber of the locking hoop mechanism, the internal thread is matched with an external thread on the outer wall of an axial extension section of the drill rod connector, and the locking hoop chamber and the drill rod connector are in coaxial threaded connection through the internal thread and the external thread;
the ring top of the locking hoop chamber is abutted against the table top of the step table;
The bottom of the locking hoop chamber is provided with a ring bottom platform which is integrated with the locking hoop chamber and is continuous with the locking hoop chamber, and the center of the ring bottom platform is provided with a ring bottom fishing spearhead through hole;
the side wall of the locking hoop chamber above the ring bottom platform is provided with a radial left screw plug hole and a radial right screw plug hole,
the inner thread of the left plug hole is screwed with a left plug, and the inner thread of the right plug hole is screwed with a right plug;
the inner side end of the left screw plug is fixedly connected with a left spring, and the inner side end of the right screw plug is fixedly connected with a right spring;
The inner side end of the left spring is fixedly connected with an arc-shaped left hoop, and the inner side end of the right spring is fixedly connected with an arc-shaped right hoop;
the inner arcs of the arc-shaped left clamp and the arc-shaped right clamp are oppositely arranged;
The arc-shaped left clamp and the arc-shaped right clamp are arranged in the same plane;
A translation channel for limiting and translating the arc-shaped left clamp and the arc-shaped right clamp is formed between the pipe bottom platform and the ring bottom platform;
drag for the spearhead and be provided with sharp-pointed top, seted up the necking groove on dragging for the spearhead of tip top below, the tip top of dragging for the spearhead penetrates the ring end in proper order and drags for the spearhead cross bore hole and the pipe end and drag for the spearhead cross bore hole from the bottom of upwards penetrating, drag for the elastic tension of the tip top of spearhead and overcome left spring and right spring and outwards prop left clamp of arc and the right clamp of arc to both sides, when the necking groove shifts up and reaches the translation passageway, under the effect of the elastic tension of left spring and right spring, the necking groove of spearhead is dragged for to the inner arc edge subtend joint of the left clamp of arc and the right clamp of arc.
The upper port of the locking hoop chamber is screwed or welded and fixed with the lower end of the drill rod joint through threads.
The diameter of the pipe bottom fishing spearhead through hole and the diameter of the ring bottom fishing spearhead through hole are both larger than the diameter of the fishing spearhead.
The locking clamp chamber is the same as the outer diameter of the drill rod joint, and the screwing-in end point of the thread screwing of the locking clamp chamber and the drill rod joint is that the ring top of the locking clamp chamber is abutted on the table surface of the step table to form seamless connection of the outer walls of the locking clamp chamber and the drill rod joint.
A section of fishing spear head below the neck reducing groove is provided with a tapered cone.
And a drill rod fixing and connecting part is arranged in an inner cavity at the upper part of the drill rod joint.
The thickness of the translation channel between the pipe bottom platform and the ring bottom platform is respectively larger than the thickness of the arc-shaped left hoop and the arc-shaped right hoop.
The diameter of the neck of the fishing spearhead neck groove is smaller than the maximum diameter of the top of the fishing spearhead tip.
compared with the prior art, the utility model produced beneficial effect is:
the utility model discloses a drag for spearhead locking fishing device can lock the spearhead of dragging for of dead inner tube assembly, realizes powerful salvage, reaches and takes out the inner tube assembly, solves downthehole accident.
and the other end of the drill rod joint is connected with a drill rod and then can be salvaged.
Compared with the existing rope fisher, the device is simple in structure, the fishing spear head is successfully connected for alarming, and the problem that the inner pipe assembly cannot be taken out when the hole accidents such as burning, burying of rock powder and blocking of foreign matters occur in the inner pipe assembly of the rope double-pipe drilling tool and the hole accidents are handled (in the concrete operation, when the drill bit and the core barrel are sintered with the bottom rock due to the burning, the inner drill pipe is fished by adopting the reverse-thread drill pipe, when the position of the double-pipe drilling tool is handled, the inner pipe assembly in the drilling tool cannot be continuously fished, and the bottom drilling tool cannot be ground by the drill bit.
use at this time the utility model discloses a drag for spearhead locking fishing device, the brute force plays and pulls out the inner tube assembly, and the result that probably appears has two, and first inner tube assembly and core barrel all propose, and second inner tube assembly and core barrel break away from, and the inner tube assembly is proposed, and the hole bottom is kept somewhere to the inner tube, like this, just can continue to salvage the drilling tool or adopt the drill bit to wear away the downthehole drilling tool, can normally be under construction and creep into.
the utility model discloses a drag for spearhead locking fishing device reasonable in design, simple structure, safe and reliable, convenient to use, easy to maintain have fine using value widely.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of a relative holding structure of the left and right arc-shaped clamps of the present invention;
FIG. 3 is a schematic view of the relative opening structure of the left and right arc-shaped clamps;
FIG. 4 is a schematic view of the relative opening structure of the left and right arc-shaped clamps;
The reference numerals in the drawings denote:
1. a drill rod connector 2, a locking hoop chamber 3, a spearhead,
4. A step reducing section 5, a step platform 6, an external thread 7, a pipe bottom platform 8, a pipe bottom fishing spearhead through hole,
9. An internal thread 10, a ring bottom platform 11, a ring bottom fishing spearhead through hole,
12. A left screw plugging hole, a right screw plugging hole and 13,
14. a left pipe plug, a right pipe plug and a left pipe plug,
16. The left spring, the right spring and the left spring 17,
18. an arc-shaped left hoop 19 and an arc-shaped right hoop,
20. The passage is moved in a horizontal direction,
21. The top of the tip, 22, the necking groove,
23. A cone body 24 and a drill rod fixing connection part;
25. guide holes 26, guide rods.
Detailed Description
The spearhead locking fishing device of the present invention will be described in detail below with reference to the accompanying drawings.
as shown in the attached drawings, the fishing spearhead locking and fishing device of the utility model structurally comprises a drill rod joint 1, a locking hoop chamber 2 and a fishing spearhead 3,
the drill rod joint 1 is of a tubular structure, the lower section of the drill rod joint is provided with a stepped reducing section 4 which is integrated with the drill rod joint and continuous, a stepped platform 5 is formed between the stepped reducing section 4 and the drift diameter lower end of the drill rod joint 1, the outer wall of the axial extension section of the stepped reducing section 4 is provided with an external thread 6, the bottom of the stepped reducing section 4 is provided with a pipe bottom platform 7 which is integrated with the stepped reducing section and continuous, and the center of the pipe bottom platform 7 is provided with a pipe bottom fishing spearhead through hole 8;
an internal thread 9 is formed in the inner wall of the top of a locking clamp chamber 2 of the locking clamp mechanism, the internal thread is matched with an external thread on the outer wall of an axial extension section of the drill rod connector, and the locking clamp chamber and the drill rod connector are in coaxial threaded connection through the internal thread and the external thread;
the ring top of the locking hoop chamber 2 is abutted against the table surface of the step table 5;
the bottom of the locking hoop chamber 2 is provided with an annular bottom platform 10 which is integrated with the locking hoop chamber and is continuous with the locking hoop chamber, and the center of the annular bottom platform is provided with an annular bottom fishing spearhead through hole 11;
the side wall of the locking hoop chamber above the ring bottom platform is provided with a radial left screw plug hole 12 and a radial right screw plug hole 13,
the inner thread of the left plug hole is screwed with a left plug 14, and the inner thread of the right plug hole is screwed with a right plug 15;
The inner side end of the left screw plug is fixedly connected with a left spring 16, and the inner side end of the right screw plug is fixedly connected with a right spring 17;
The inner side end of the left spring is fixedly connected with an arc-shaped left hoop 18, and the inner side end of the right spring is fixedly connected with an arc-shaped right hoop 19;
The inner arcs of the arc-shaped left clamp and the arc-shaped right clamp are oppositely arranged;
The arc-shaped left clamp and the arc-shaped right clamp are arranged in the same plane;
A translation channel 20 for limiting and translating the arc-shaped left clamp and the arc-shaped right clamp is formed between the pipe bottom platform and the ring bottom platform;
Drag for spearhead 3 and be provided with sharp-pointed top 21, the neck groove 22 has been seted up on dragging for the spearhead of tip top below, the tip top of dragging for the spearhead penetrates the ring end in proper order and drags for the spearhead cross bore hole and manage the spearhead cross bore hole at the bottom of, the elastic tension who overcomes left spring and right spring at the tip top of dragging for the spearhead outwards props the left clamp of arc and the right clamp of arc to both sides, when the neck groove shifts up and reaches the translation passageway, under the effect of the elastic tension of left spring and right spring, the neck groove that the spearhead was dragged for to the inner arc edge subtend joint of the left clamp of arc and the right clamp of arc, the spearhead.
the upper port of the locking hoop chamber is screwed or welded and fixed with the lower end of the drill rod joint through threads.
The diameter of the pipe bottom fishing spearhead through hole and the diameter of the ring bottom fishing spearhead through hole are both larger than the diameter of the fishing spearhead.
the locking clamp chamber is the same as the outer diameter of the drill rod joint, and the screwing-in end point of the thread screwing of the locking clamp chamber and the drill rod joint is that the ring top of the locking clamp chamber is abutted on the table surface of the step table to form seamless connection of the outer walls of the locking clamp chamber and the drill rod joint.
A section of fishing spear head below the neck reducing groove is provided with a tapered cone 23.
the inner cavity of the upper part of the drill rod joint is provided with a drill rod fixing and connecting part 24.
The thickness of the translation channel between the pipe bottom platform and the ring bottom platform is respectively larger than the thickness of the arc-shaped left hoop and the arc-shaped right hoop.
The diameter of the neck of the fishing spearhead neck groove is smaller than the maximum diameter of the top of the fishing spearhead tip.
The utility model discloses a drag for spearhead locking fishing device passes through spring and spring plug, makes locking clamp room be in the locking state, and drilling rod joint and locking clamp room screw thread are connected, and the activity about connecting back restriction arc left side clamp, the right clamp of arc is from top to bottom avoided the clamp to drop and to fall into downthehole emergence downthehole accident.
when salvaging the spearhead, it exposes to drag for the spearhead, only need to sink this device along drilling, make this device with drag for the coaxial butt joint of spearhead, drag for the tip top of spearhead and penetrate the ring end in proper order and drag for the spearhead cross bore hole and the intraductal end and drag for the spearhead cross bore hole from upwards down, drag for the tip top of spearhead and overcome the elastic tension of left spring and right spring and prop left clamp of arc and the right clamp of arc outside to both sides, when the necking down groove shifts up and reaches the translation passageway, under the effect of the elastic tension of left spring and right spring, the necking down groove that the spearhead was dragged for to the inner arc edge subtend joint of the left clamp of arc and the right clamp of arc. The spearhead can be salvaged by lifting the device.
when the spearhead is dragged for in the dismantlement, only need with left plug and right plug outside screw-out to locking clamp room, draw left clamp of arc and right clamp of arc respectively to the outside, make left clamp of arc and right clamp of arc break away from the necking down groove of dragging for the spearhead, can remove left clamp of arc and the right clamp of arc to the locking of dragging for the spearhead.
the fishing spearhead below the fishing spearhead neck groove is a tapered cone, when the locking is released, the fishing spearhead and the locking hoop chamber are relieved, static plane friction force of the arc-shaped left hoop and the arc-shaped right hoop on the fishing spearhead is eliminated, and the fishing spearhead is more easily detached.
Left spring and right spring, the left clamp of arc and the right clamp of arc constitute the spring locking mechanism of two position subtends in the coplanar, and this device also can set up the spring locking mechanism of the multiple spot position crowded altogether and exert the locking to dragging for the spearhead.
Still can design the guiding hole on the hoop of the left clamp of arc and the right clamp of arc on one's body, be provided with the guide bar in the fixed guide hole's that should the left clamp of arc and the right clamp of arc extending position respectively on the indoor wall of locking clamp, guide bar and guide hole slip cross-under, can increase design linear bearing on the guide hole inner wall, it is more smooth and easy to make the straight line between guide bar and the guiding hole slide, the extending direction and the left spring of guide bar, the right side spring is parallel, thereby realize the motion of the left clamp of the straight line direction arc and the right clamp of arc, prevent the deflection of the left clamp of arc and the right clamp direction of arc, avoid blocking dead condition to take place.
in order to avoid the medial extremity of guide bar can the joint to the necking groove, the guiding hole of the left clamp of design arc and the right clamp of arc is the blind hole, and the blind end is located the inner arc side of clamp. The elastic movement stroke of the arc left clamp and the arc right clamp is guaranteed to be stable, and accidents in holes are avoided.
Claims (8)
1. The fishing spearhead locking fishing device is characterized by comprising a drill rod joint, a locking hoop chamber and a fishing spearhead,
The drill rod joint is of a tubular structure, the lower section of the drill rod joint is provided with a stepped reducing section which is integrated with the drill rod joint and continuous, a stepped platform is formed between the stepped reducing section and the lower end of the drift diameter of the drill rod joint, external threads are arranged on the outer wall of the axial extension section of the stepped reducing section, a pipe bottom platform which is integrated with the stepped reducing section and continuous is arranged at the bottom of the stepped reducing section, and a pipe bottom fishing spearhead through hole is formed in the center of the pipe bottom platform;
an internal thread is formed in the inner wall of the top of a locking hoop chamber of the locking hoop mechanism, the internal thread is matched with an external thread on the outer wall of an axial extension section of the drill rod connector, and the locking hoop chamber and the drill rod connector are in coaxial threaded connection through the internal thread and the external thread;
the ring top of the locking hoop chamber is abutted against the table top of the step table;
the bottom of the locking hoop chamber is provided with a ring bottom platform which is integrated with the locking hoop chamber and is continuous with the locking hoop chamber, and the center of the ring bottom platform is provided with a ring bottom fishing spearhead through hole;
the side wall of the locking hoop chamber above the ring bottom platform is provided with a radial left screw plug hole and a radial right screw plug hole,
the inner thread of the left plug hole is screwed with a left plug, and the inner thread of the right plug hole is screwed with a right plug;
the inner side end of the left screw plug is fixedly connected with a left spring, and the inner side end of the right screw plug is fixedly connected with a right spring;
the inner side end of the left spring is fixedly connected with an arc-shaped left hoop, and the inner side end of the right spring is fixedly connected with an arc-shaped right hoop;
the inner arcs of the arc-shaped left clamp and the arc-shaped right clamp are oppositely arranged;
the arc-shaped left clamp and the arc-shaped right clamp are arranged in the same plane;
a translation channel for limiting and translating the arc-shaped left clamp and the arc-shaped right clamp is formed between the pipe bottom platform and the ring bottom platform;
drag for the spearhead and be provided with sharp-pointed top, seted up the necking groove on dragging for the spearhead of tip top below, the tip top of dragging for the spearhead penetrates the ring end in proper order and drags for the spearhead cross bore hole and the pipe end and drag for the spearhead cross bore hole from the bottom of upwards penetrating, drag for the elastic tension of the tip top of spearhead and overcome left spring and right spring and outwards prop left clamp of arc and the right clamp of arc to both sides, when the necking groove shifts up and reaches the translation passageway, under the effect of the elastic tension of left spring and right spring, the necking groove of spearhead is dragged for to the inner arc edge subtend joint of the left clamp of arc and the right clamp of arc.
2. The fishing spearhead locking fishing device of claim 1, wherein: the upper port of the locking hoop chamber is screwed or welded and fixed with the lower end of the drill rod joint through threads.
3. the fishing spearhead locking fishing device of claim 1, wherein: the diameter of the pipe bottom fishing spearhead through hole and the diameter of the ring bottom fishing spearhead through hole are both larger than the diameter of the fishing spearhead.
4. The fishing spearhead locking fishing device of claim 1, wherein: the locking clamp chamber is the same as the outer diameter of the drill rod joint, and the screwing-in end point of the thread screwing of the locking clamp chamber and the drill rod joint is that the ring top of the locking clamp chamber is abutted on the table surface of the step table to form seamless connection of the outer walls of the locking clamp chamber and the drill rod joint.
5. The fishing spearhead locking fishing device of claim 1, wherein: a section of fishing spear head below the neck reducing groove is provided with a tapered cone.
6. The fishing spearhead locking fishing device of claim 1, wherein: and a drill rod fixing and connecting part is arranged in an inner cavity at the upper part of the drill rod joint.
7. the fishing spearhead locking fishing device of claim 1, wherein: the thickness of the translation channel between the pipe bottom platform and the ring bottom platform is respectively larger than the thickness of the arc-shaped left hoop and the arc-shaped right hoop.
8. The fishing spearhead locking fishing device of claim 1, wherein: the diameter of the neck of the fishing spearhead neck groove is smaller than the maximum diameter of the top of the fishing spearhead tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585831.8U CN209780822U (en) | 2019-04-26 | 2019-04-26 | fishing spearhead locking fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585831.8U CN209780822U (en) | 2019-04-26 | 2019-04-26 | fishing spearhead locking fishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780822U true CN209780822U (en) | 2019-12-13 |
Family
ID=68804223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920585831.8U Expired - Fee Related CN209780822U (en) | 2019-04-26 | 2019-04-26 | fishing spearhead locking fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209780822U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189837A1 (en) * | 2020-03-25 | 2021-09-30 | 深圳市工勘岩土集团有限公司 | Method for salvaging down-the-hole hammer drilling tool |
| CN113605851A (en) * | 2021-08-27 | 2021-11-05 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Rope core-taking off-axis anti-inclination drilling tool |
| CN117307077A (en) * | 2023-11-27 | 2023-12-29 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Drilling rod fishing device in geological drill hole |
-
2019
- 2019-04-26 CN CN201920585831.8U patent/CN209780822U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189837A1 (en) * | 2020-03-25 | 2021-09-30 | 深圳市工勘岩土集团有限公司 | Method for salvaging down-the-hole hammer drilling tool |
| CN113605851A (en) * | 2021-08-27 | 2021-11-05 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Rope core-taking off-axis anti-inclination drilling tool |
| CN117307077A (en) * | 2023-11-27 | 2023-12-29 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Drilling rod fishing device in geological drill hole |
| CN117307077B (en) * | 2023-11-27 | 2024-02-09 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Drilling rod fishing device in geological drill hole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209780822U (en) | fishing spearhead locking fishing device | |
| CN111236872B (en) | Directional rope core drill and drilling method thereof | |
| US2401893A (en) | Side wall core barrel | |
| CN104499979B (en) | It is changed without the method and device that slips salvages different-diameter fish | |
| US3915489A (en) | Elevator plug | |
| CN205100926U (en) | Sliding block fishing spear | |
| CN206158606U (en) | Coiled tubing anti -dropping apparatus | |
| CN213478279U (en) | Can move back awl formula drilling tool fishing tool | |
| US2886369A (en) | Wire fishing tool | |
| RU115817U1 (en) | CATCH BAR | |
| CN109236221B (en) | Hydraulic perforation anchoring device | |
| CN202125270U (en) | Safe spear blanking plug | |
| US2915289A (en) | Combined jar and safety joint | |
| CN218206636U (en) | Fishing spear | |
| CN203783511U (en) | Retractable oil tube seal fishing tool | |
| CN220036637U (en) | Throwing and fishing tool adopting coiled tubing operation | |
| CN213980752U (en) | Fishing ball control blanking plug | |
| CN211448563U (en) | Manual jack-proof device for pumping rod | |
| CN213330995U (en) | Fishing tool for well-falling sucker rod | |
| CN220167905U (en) | Eccentric fishing tool | |
| CN213016267U (en) | Returnable double-slip overshot | |
| CN211287561U (en) | Down-hole accident drill pipe breaking guide device | |
| US9181758B2 (en) | Diamond core drill wire line latch assembly | |
| CN215292417U (en) | Fishable tail plug of high-pressure gravel filling sand control pipe column and fishing tool thereof | |
| CN216446883U (en) | Fishing device for pipe without leaving well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |