CN213205612U - Inner guide and male cone combined drilling inner fishing tool - Google Patents
Inner guide and male cone combined drilling inner fishing tool Download PDFInfo
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- CN213205612U CN213205612U CN202021841082.XU CN202021841082U CN213205612U CN 213205612 U CN213205612 U CN 213205612U CN 202021841082 U CN202021841082 U CN 202021841082U CN 213205612 U CN213205612 U CN 213205612U
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Abstract
The utility model provides an interior direction and instrument of salvaging in public awl united drilling, belongs to rig probing technical field, can solve the problem that the salvage degree of difficulty that falls drilling tool and drilling rod in the drilling of current drilling work progress is big, including sleeve and public awl, be equipped with hollow circular cone in the sleeve, the top of circular cone is equipped with the round hole that the diameter is greater than disconnected drilling rod diameter, and telescopic top is equipped with the screw thread of being connected with public awl, and screw thread and muffjoint are passed through to the one end of public awl, and the other end passes through to connect to be connected with the drilling rod, and the center of the bottom of public awl aligns with the center of round hole. Through using the utility model discloses make the drilling tool of taking off the mouth introduce more easily the utility model discloses in and with the butt joint of public awl, improve the success rate of salvaging, reduce useless porosity.
Description
Technical Field
The utility model belongs to the technical field of the rig probing, concretely relates to instrument of salvaging in drilling that interior direction and pin cone are united.
Background
In the process of drilling construction, in-hole accidents such as drill falling, hole collapse, hole blocking, hole inclination and the like often occur. Among them, drill drop seems to be a small problem, but if not handled properly, it may result in engineering scrapping, which brings great economic loss to enterprises, and even may cause safety accidents.
The mass of a drilling tool and a drilling rod falling in the drilling hole is large, the drilling tool and the drilling rod are subjected to large pressure feeding and large torsion breaking in the construction drilling process and are inserted into a rock stratum, the force is insufficient during salvaging treatment and lifting, the drilling tool and the drilling rod cannot be pulled, and even if the drilling tool and the drilling rod are pulled, due to large weight, the drilling tool and the drilling rod are easy to trip and fall for the second; and secondly, the dropped and twisted-off drilling tool is not in the same axis direction and is inclined, and the original fishing equipment can not catch the dropped equipment at all.
Generally, there are three methods for solving such accidents: firstly, the male buckle (male cone) is adopted for downward fishing, the difficulty is that a drill rod and a drill bit in a hole are inclined, the drill rod cannot be pricked after the male buckle is downward, and the repeated fishing fails; secondly, a female buckle (female cone) drill bit is adopted to carry out downward fishing, and the difficulty is that due to the large aperture, the dropped drill rod and the dropped drill bit have large mass, the female buckle drill bit cannot be tightly bitten, and the female buckle drill bit drops off in the lifting process after being bitten for many times; and thirdly, scrapping the hole and performing displacement construction again.
Disclosure of Invention
The invention provides an inner guide and male cone combined inner fishing tool for a drill hole, aiming at the problem that the fishing difficulty of a drill tool and a drill rod falling in the drill hole is high in the existing drilling construction process.
The utility model adopts the following technical scheme:
the utility model provides an instrument of salvaging in drilling that interior direction and pin cone are united, includes sleeve and pin cone, be equipped with hollow circular cone in the sleeve, the top of circular cone is equipped with the diameter and is greater than the round hole of disconnected drilling rod diameter, and telescopic top is equipped with the screw thread of being connected with the pin cone, and screw thread and muffjoint are passed through to the one end of pin cone, and the other end passes through the joint to be connected with the drilling rod, and the center of the bottom of pin cone aligns with the center of round hole.
The bottom of the cone frustum is flush with the bottom of the sleeve.
The round hole is positioned in the center of the cone frustum.
The screw thread on the top of the sleeve is positioned in the center of the sleeve.
The utility model has the advantages as follows:
the utility model discloses an inside circular truncated cone that sets up of sleeve plays the guide effect, makes the drilling rod that falls right along the interior direction of circular truncated cone for the drilling tool that takes off the mouth introduces more easily the utility model discloses in and with the butt joint of public awl, improve the success rate of salvaging, reduce the dead porosity.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a use state I of the present invention;
fig. 3 shows a use state ii of the present invention;
fig. 4 shows a use state iii of the present invention;
fig. 5 shows a state of use iv of the present invention;
wherein: 1-a sleeve; 2-a male cone; 3-a truncated cone; 4-a circular hole; 5-a drilling machine; 6-breaking the drill rod; 7-drill rails.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the fishing tool in drilling hole with the combination of internal guide and the male cone comprises a sleeve 1 and the male cone 2, wherein a hollow truncated cone 3 is arranged in the sleeve 1, a round hole 4 with the diameter larger than the diameter of a broken drill rod is arranged at the top of the truncated cone 3, a screw thread connected with the male cone 2 is arranged at the top of the sleeve 1, one end of the male cone 2 is connected with the sleeve 1 through the screw thread, the other end of the male cone is connected with the drill rod through a joint, and the center of the bottom of the male cone 2 is aligned with the center of the round hole 4.
The bottom of the truncated cone 3 is flush with the bottom of the sleeve 1.
The circular hole 4 is positioned in the center of the truncated cone 3.
The screw thread on the top of the sleeve 1 is positioned in the center of the sleeve 1.
Manufacturing a combined tool: a round pipe with the diameter phi of 300 mm is adopted, the height of the round pipe is 450mm, a round opening is welded in the middle of the inside of the round pipe, the diameter of the round opening is slightly larger than phi 73 mm (the diameter of a broken drill rod), a circle of slope-shaped steel plate is welded inside the round pipe and is in butt joint with the round opening in the middle to form a horn mouth shape, the big opening faces downwards, a screw thread is welded in the middle of the upper portion of the round pipe and is connected with a male cone, the bottom of the male cone is aligned with.
When a drainage hole is constructed between a 5# transverse river and a 15# coal drainage chamber in the nine-one panel area for the villiast mine, (the hole depth is 43m, and the diameter is 310 mm), a ZDY-4000S hydraulic tunnel drilling machine is selected, and a round drill rod with the diameter phi of 73 mm is matched for secondary hole forming. The first construction adopts a phi 153 mm drill bit, the second construction adopts a phi 310mm drill bit, and then a phi 245 x 10mm sleeve is put in, wherein the length of the sleeve is 43 m. And (5) performing well cementation treatment on the casing after the casing is put in, and connecting a pipeline for draining water after the treatment. When the secondary hole forming construction reaches 32m, the drill bit falls into the hole together with half drill rods.
As shown in fig. 2-5, the application method of the present invention is as follows:
(1) righting: will the utility model discloses a rig power, drilling rod rotation go into downthehole down, when going into 31m under the drilling rod, the drilling rod that falls is followed interior direction orbit, rights it.
(2) Introducing: and in the process of continuously rotating and lowering the drill rod, the dropped drill rod enters the middle round opening through internal guiding.
(3) Locking: the fallen drill rod after entering the round opening is locked by the male cone in the rotating process.
(4) Fishing: when the drilling pressure is increased, the rotation is stopped, the equipment is lifted, and the fishing process is finished.
Claims (4)
1. The utility model provides a fishing tool in drilling that interior direction and pin cone are united which characterized in that: including sleeve (1) and public awl (2), be equipped with hollow circular cone (3) in sleeve (1), the top of circular cone (3) is equipped with round hole (4) that the diameter is greater than disconnected drilling rod diameter, and the top of sleeve (1) is equipped with the screw thread of being connected with public awl (2), and the one end of public awl (2) is passed through the screw thread and is connected with sleeve (1), and the other end passes through to be connected with the drilling rod through the joint, and the center of the bottom of public awl (2) aligns with the center of round hole (4).
2. The combined internal guide and pin cone borehole fishing tool of claim 1, wherein: the bottom of the cone frustum (3) is flush with the bottom of the sleeve (1).
3. The combined internal guide and pin cone borehole fishing tool of claim 1, wherein: the round hole (4) is positioned in the center of the truncated cone (3).
4. The combined internal guide and pin cone borehole fishing tool of claim 1, wherein: the screw thread on the top of the sleeve (1) is positioned in the center of the sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841082.XU CN213205612U (en) | 2020-08-28 | 2020-08-28 | Inner guide and male cone combined drilling inner fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841082.XU CN213205612U (en) | 2020-08-28 | 2020-08-28 | Inner guide and male cone combined drilling inner fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213205612U true CN213205612U (en) | 2021-05-14 |
Family
ID=75842485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021841082.XU Active CN213205612U (en) | 2020-08-28 | 2020-08-28 | Inner guide and male cone combined drilling inner fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213205612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075761A (en) * | 2022-06-16 | 2022-09-20 | 中石化石油工程技术服务有限公司 | Special soft stratum broken drill rod fisher for orientation |
-
2020
- 2020-08-28 CN CN202021841082.XU patent/CN213205612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075761A (en) * | 2022-06-16 | 2022-09-20 | 中石化石油工程技术服务有限公司 | Special soft stratum broken drill rod fisher for orientation |
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