CN211262001U - Explosive cutting tool for drill pipe and oil pipe casing - Google Patents
Explosive cutting tool for drill pipe and oil pipe casing Download PDFInfo
- Publication number
- CN211262001U CN211262001U CN201921915595.8U CN201921915595U CN211262001U CN 211262001 U CN211262001 U CN 211262001U CN 201921915595 U CN201921915595 U CN 201921915595U CN 211262001 U CN211262001 U CN 211262001U
- Authority
- CN
- China
- Prior art keywords
- pipe
- semicircular pipe
- semicircular
- holder
- energy
- 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.)
- Active
Links
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model provides a drilling rod oil pipe sleeve pipe explosion cutting means, include: an anchor rod, one end of which is provided with a clamp holder; the magnetic positioning instrument is arranged at the middle section of the anchor rod; a cutting bullet disposed on the other end of the anchor rod, the cutting bullet including: the energy collecting device comprises a first semicircular pipe, a second semicircular pipe and a power supply, wherein energy collecting grooves are formed in the first semicircular pipe and comprise a first energy collecting groove and a second energy collecting groove; the second semicircular pipe is buckled with the first semicircular pipe, and a third energy-gathering groove is formed in the bottom of the second semicircular pipe and is arc-shaped; the explosive is filled in a cavity body formed by the first semicircular pipe and the second semicircular pipe; the detonator is arranged in a cavity body formed by the first semicircular pipe and the second semicircular pipe; and one end of the detonating lead is arranged on the detonator, and the other end of the detonating lead is led out of the first semicircular pipe through the lead hole. The utility model discloses novel structure, the practicality is strong, and the blasting cutting effect is good.
Description
Technical Field
The utility model relates to a blasting powder charge technical field specifically is a drilling rod oil pipe sleeve pipe explosion cutting means.
Background
With the acceleration of oil and gas development pace in China, the number of well drilling is rapidly increased. During oilfield operations, well abandonment (i.e., abandoned oil wells) often occurs. When the length of the well tubular is inappropriate and even affects the environment or production operation, it is necessary to cut off a section. But the construction can not be carried out according to the conventional method because the construction environment is special (underground or underwater).
At present, in each oil field, cutting methods mainly comprise three types: mechanical cutting, chemical cutting, and deflagration cutting. Mechanical cutting: the cutting tool mainly uses a mechanical internal cutting knife, when the cutting tool is lowered to a preset depth, the blade is opened, and the ground rotating pipe column cuts (mainly used for cutting a casing pipe), so that the cutting tool cannot be used for a deep well or a horizontal well. Chemical cutting: hydrofluoric acid liquid sprayed by a cutting bullet is mainly used for corrosion and impact, and the sprayed liquid has strong toxicity and generally limits the use of the liquid. Explosion cutting: the high-speed metal jet is generated mainly by explosion of explosives, so that the purpose of cutting is achieved, the explosive cutting has the characteristics of low cost, convenience in use, safety and reliability, and can be used in a horizontal well through pumping, so that various requirements can be met, and the technology represents the development direction of the underground cutting technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drilling rod oil pipe sleeve pipe explosion cutting means can be under special environment, and is quick cuts oil pipe.
In order to achieve the above object, the utility model provides a drilling rod oil pipe sleeve pipe explosion cutting means, include:
the anchor rod is provided with a holder at one end, the holder comprises a first holder and a second holder, the first holder and the second holder are arranged oppositely up and down, the first holder and the second holder are turned over to the wall of the sleeve pipe, and a magnet is arranged between the holder and the wall of the sleeve pipe;
the magnetic positioning instrument is arranged at the middle section of the anchor rod;
a cutting bullet disposed on the other end of the anchor rod, the cutting bullet including:
the energy collecting device comprises a first semicircular pipe, a second semicircular pipe and a power supply, wherein energy collecting grooves are formed in the first semicircular pipe, the energy collecting grooves comprise a first energy collecting groove and a second energy collecting groove, the first energy collecting groove and the second energy collecting groove are respectively formed in two ports of the first semicircular pipe, the first energy collecting groove and the second energy collecting groove are of V-shaped structures, conical blocks are uniformly distributed on the outer wall of the first semicircular pipe, a lead hole is formed in the center of the first semicircular pipe, and the first semicircular pipe is made of metal materials;
the second semicircular pipe is buckled with the first semicircular pipe, and a third energy-gathering groove is formed in the bottom of the second semicircular pipe and is arc-shaped;
the explosive is filled in a cavity body formed by the first semicircular pipe and the second semicircular pipe;
the detonator is arranged in a cavity body formed by the first semicircular pipe and the second semicircular pipe;
and one end of the detonating lead is arranged on the detonator, and the other end of the detonating lead is led out of the first semicircular pipe through the lead hole.
The preferred scheme is as follows: the third energy-collecting groove is of an inward-concave arc structure.
The preferred scheme is as follows: the port department of first semicircle pipe is provided with the card platform, the port department of second semicircle pipe be provided with the draw-in groove that the card platform suited, card platform and draw-in groove buckle are connected.
The preferred scheme is as follows: the included angle of the energy gathering grooves is 40-60 degrees.
The preferred scheme is as follows: the first semicircular pipe and the second semicircular pipe are bound through an adhesive tape.
The preferred scheme is as follows: the magnetic locator is close to one side of the cutting bullet.
The preferred scheme is as follows: the first semicircular pipe and the second semicircular pipe have outer diameters larger than 15 mm.
The preferred scheme is as follows: the arc angle of the third energy collecting groove is larger than 90 degrees.
The preferred scheme is as follows: the top end of the first semicircular tube has a thickness less than that of the marginal end.
The utility model has the advantages that:
1. the utility model is provided with the first semicircular pipe and the second semicircular pipe, and the first semicircular pipe and the second semicircular pipe are disassembled for loading explosive, so that the speed is high and the operation is simple;
2. the utility model has novel structure, strong practicability and good blasting and cutting effect;
3. the utility model is provided with two V-shaped first energy gathering grooves, two second energy gathering grooves and an arc-shaped third energy gathering groove, so that the explosion can lead the explosion shock wave to gather on the axis of the energy gathering grooves and to impact outwards along the opening direction of the energy gathering grooves, thereby forming extremely strong cutting force and further playing the role of directional pre-splitting;
4. the utility model is provided with a first clamping part and a second clamping part, the first clamp holder and the second clamp holder are turned over to the wall of the casing pipe, a magnet is arranged between the clamp holder and the wall of the casing pipe, the positions of the anchor rod and the casing pipe are relatively fixed by clamping the first clamping part and the second clamping part, and the accuracy of blasting is improved;
5. the utility model discloses an evenly laid the toper piece on the outer wall of first semicircular tube, improved the cutting ability of cutting bullet.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the cutting bullet.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The utility model provides a drilling rod oil pipe sleeve pipe explosion cutting means, include: the anchor rod 2 is provided with a holder at one end, the holder comprises a first holder and a second holder 4, the first holder 3 and the second holder 4 are arranged oppositely up and down, the first holder 3 and the second holder 4 are turned over to the pipe wall of the sleeve 1, and a magnet 5 is arranged between the holder and the pipe wall of the sleeve 1; the magnetic positioning instrument 6 is arranged in the middle section of the anchor rod 2; a cutting bullet 7 provided on the other end of the anchor rod 2, the cutting bullet 7 including: the cutting device comprises a first semicircular pipe, wherein energy gathering grooves are formed in the first semicircular pipe, the energy gathering grooves comprise a first energy gathering groove 8 and a second energy gathering groove 9, the first energy gathering groove 8 and the second energy gathering groove 9 are respectively arranged at two ports of the first semicircular pipe, the first energy gathering groove 8 and the second energy gathering groove 9 are in V-shaped structures, conical blocks 13 are uniformly distributed on the outer wall of the first semicircular pipe, a lead hole is formed in the center of the first semicircular pipe, the first semicircular pipe is made of aluminum or other fusible metals, and the conical blocks 13 improve the cutting capacity of a cutting bullet; the second semicircular tube is buckled with the first semicircular tube, a third energy-gathering groove 10 is formed in the bottom of the second semicircular tube, the third energy-gathering groove 10 is arc-shaped, the first semicircular tube and the second semicircular tube can be fused into a cutting knife which flies outwards at high temperature and high speed under the action of high temperature and high pressure of explosive, the sleeve is cut off instantly, the arc angle of the third energy-gathering groove 10 is larger than 90 degrees and smaller than 180 degrees, and the bottom end of the tube body can also have an energy-gathering effect due to an inwards concave structure; the explosive is filled in a cavity body formed by the first semicircular pipe and the second semicircular pipe, and is an emulsion explosive; the detonator 11 is arranged in a cavity body formed by the first semicircular pipe and the second semicircular pipe; and the detonating lead 12 has one end arranged on the detonator 11 and the other end led out of the first semicircular pipe through the lead hole, and detonates the detonator 11 through the detonating lead. After the explosive carrying the energy gathering grooves is detonated, the detonation waves are propagated along the axial direction of the sleeve on one hand and the radial direction of the sleeve on the other hand. When the detonation wave is transmitted to the energy-gathering grooves along the radial direction, the energy-gathering grooves are compressed and deformed due to the extremely high pressure, the extremely high pressure and temperature are generated due to collision, and the blasting energy forms high-speed and high-density jet flow ejected along the axial direction, so that the blasting effect is extremely strong. After the explosive is detonated, when the detonation wave front enters the energy-gathering groove, detonation products fly out vertically and outwards along the opening direction of the energy-gathering groove, are gathered on the symmetrical axis and are gathered into an air flow, so that the explosive has extremely high speed, density, pressure and energy density, and the destructive effect is greatly improved.
The utility model is provided with the first semicircular pipe and the second semicircular pipe, and the first semicircular pipe and the second semicircular pipe are disassembled for loading explosive, so that the speed is high and the operation is simple; the utility model has novel structure, strong practicability and good blasting and cutting effect; the utility model is provided with two V-shaped first energy gathering grooves 8, two V-shaped second energy gathering grooves 9 and an arc-shaped third energy gathering groove 10, so that the explosion can lead the explosion shock waves to gather on the axis of the energy gathering grooves and impact outwards along the opening direction of the energy gathering grooves, thereby forming extremely strong cutting force and further playing the role of directional pre-splitting; the utility model is provided with a first clamping part 3 and a second clamping part 4, the first clamping part 3 and the second clamping part 4 are turned over to the pipe wall of the sleeve 1, a magnet 5 is arranged between the clamping part and the pipe wall of the sleeve 1, the anchor rod 2 and the sleeve are relatively fixed by the clamping of the first clamping part 3 and the second clamping part 4, and the accuracy of blasting is improved; the conical blocks 13 are uniformly distributed on the outer wall of the first semicircular pipe, so that the cutting capability of the cutting bullet 7 is improved; the utility model discloses be provided with the first energy groove 8 and the second energy groove 9 and the curved third energy groove 10 that gathers of two V-arrangements, novel structure, the practicality is strong, and the blasting cutting effect is good, and blasting energy utilization is higher, and broken scope is big, and the blasting lump degree is even, and installation convenient operation, labour saving and time saving has saved the loss of blasting material, has reduced the operating cost to alleviate intensity of labour, improved work efficiency.
In another embodiment, the port of the first semicircular pipe is provided with a clamping table, the port of the second semicircular pipe is provided with a clamping groove adapted to the clamping table, and the clamping table is connected with the clamping groove in a buckling mode.
In another embodiment, the included angle of the energy gathering grooves is 40-60 degrees.
In another embodiment, the first semicircular pipe and the second semicircular pipe are bound through the adhesive tape, the fixing mode is simple and firm, the operation is very convenient and fast, the working efficiency is high, during the medicine charging, the first semicircular pipe and the second semicircular pipe are opened into two connected semicircular pipes, in an explosive storehouse or a field work shed, a glue gun or a pressure piston type medicine injection machine is used for continuously injecting medicine into the first semicircular pipe and the second semicircular pipe simultaneously, the first semicircular pipe and the second semicircular pipe are folded and closed after the medicine injection is completed, and the first semicircular pipe and the second semicircular pipe are bound and fixed through the adhesive tape, so that the first semicircular pipe and the second semicircular pipe are firmly fixed together to form a complete tubular structure.
In another embodiment, the magnetic locator 6 is located adjacent to one side of the cutting bullet.
In another embodiment, the first and second semicircular tubes have an outside diameter greater than 15 mm.
In another embodiment, the arc angle of the third energy concentrating groove 10 is greater than 90 °.
In another embodiment, the top end of the first semicircular tube has a thickness less than the thickness of the marginal end.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. Drilling rod oil pipe sleeve pipe explosion cutting means, its characterized in that includes:
the anchor rod is provided with a holder at one end, the holder comprises a first holder and a second holder, the first holder and the second holder are arranged oppositely up and down, the first holder and the second holder are turned over to the wall of the sleeve pipe, and a magnet is arranged between the holder and the wall of the sleeve pipe;
the magnetic positioning instrument is arranged at the middle section of the anchor rod;
a cutting bullet disposed on the other end of the anchor rod, the cutting bullet including:
the energy collecting device comprises a first semicircular pipe, a second semicircular pipe and a power supply, wherein energy collecting grooves are formed in the first semicircular pipe, the energy collecting grooves comprise a first energy collecting groove and a second energy collecting groove, the first energy collecting groove and the second energy collecting groove are respectively formed in two ports of the first semicircular pipe, the first energy collecting groove and the second energy collecting groove are of V-shaped structures, conical blocks are uniformly distributed on the outer wall of the first semicircular pipe, a lead hole is formed in the center of the first semicircular pipe, and the first semicircular pipe is made of metal materials;
the second semicircular pipe is buckled with the first semicircular pipe, and a third energy-gathering groove is formed in the bottom of the second semicircular pipe and is arc-shaped;
the explosive is filled in a cavity body formed by the first semicircular pipe and the second semicircular pipe;
the detonator is arranged in a cavity body formed by the first semicircular pipe and the second semicircular pipe;
and one end of the detonating lead is arranged on the detonator, and the other end of the detonating lead is led out of the first semicircular pipe through the lead hole.
2. The drill pipe casing explosive cutting tool of claim 1, wherein the third energy groove is an inwardly concave arc-shaped structure.
3. The explosive cutting tool for drill pipe and oil pipe casings as claimed in claim 1, wherein a clamping table is arranged at the port of the first semicircular pipe, a clamping groove adapted to the clamping table is arranged at the port of the second semicircular pipe, and the clamping table and the clamping groove are connected in a buckling mode.
4. The drill pipe oil pipe casing explosive cutting tool of claim 1, wherein the included angle of the energy-gathering grooves is 40-60 °.
5. The drill pipe tubing casing explosive cutting tool of claim 1, wherein the first and second semi-circular tubes are bound by adhesive tape.
6. The tool of claim 1, wherein the magnetic locator is located adjacent to one side of the cutting bullet.
7. The drill pipe tubing casing explosive cutting tool of claim 1, wherein the first and second semicircular tubes have an outer diameter greater than 15 mm.
8. The drill pipe tubing casing explosive cutting tool of claim 1, wherein the arc angle of the third shaped charge is greater than 90 °.
9. The drill pipe tubing casing explosive cutting tool of claim 1, wherein the top end of the first semi-circular tube has a thickness less than the thickness of the marginal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915595.8U CN211262001U (en) | 2019-11-04 | 2019-11-04 | Explosive cutting tool for drill pipe and oil pipe casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915595.8U CN211262001U (en) | 2019-11-04 | 2019-11-04 | Explosive cutting tool for drill pipe and oil pipe casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211262001U true CN211262001U (en) | 2020-08-14 |
Family
ID=71988259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921915595.8U Active CN211262001U (en) | 2019-11-04 | 2019-11-04 | Explosive cutting tool for drill pipe and oil pipe casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211262001U (en) |
-
2019
- 2019-11-04 CN CN201921915595.8U patent/CN211262001U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108759596B (en) | Flexible energy-gathered blasting pipe cutting device and using method thereof | |
| CN100491894C (en) | Construction method of energy cumulative presplitting and smoothsurface blasting and special device thereof | |
| CA2879436C (en) | Coaxial perforating charge and its perforation method for self-eliminating compacted zone | |
| CN103499255A (en) | Method for directional energy-gathered blasting of retaining wall with low damage | |
| US4627353A (en) | Shaped charge perforating apparatus | |
| CN203928912U (en) | The directional cumulation demolition set that a kind of energy is strengthened | |
| CN112393654B (en) | Two-way energy-gathering blasting charge structure of joint-cutting pipe | |
| CN109211037A (en) | A kind of underwater explosion cutting component and underwater explosion cutting method | |
| CN203249553U (en) | Blasthole directional fracture apparatus | |
| CN105571414A (en) | Jet flow slotting assisted slight blasting method for underground construction | |
| US3190219A (en) | Perforating device | |
| CN211262001U (en) | Explosive cutting tool for drill pipe and oil pipe casing | |
| CN105507838A (en) | Cumulative cutting device for thick-wall metal pipe columns | |
| US4669384A (en) | High temperature shaped charge perforating apparatus | |
| US3063373A (en) | Method of blasting | |
| US3654866A (en) | Mach effect in presplitting | |
| US20130284441A1 (en) | Downhole severing tool | |
| CN106813540A (en) | The method of Shaft Freezing rock section deep hole blasting under ultra low temperature state | |
| CN102927863B (en) | A kind of new method of total rock tunnel blasting construction | |
| CN214950943U (en) | A all round hole loaded constitution for plain noodles control blasting | |
| CN113059049A (en) | Novel annular energy-gathering cutter | |
| CN104713432A (en) | Blasting method employing detonation wave energy collection | |
| CN217210601U (en) | Energy-gathered water pressure blasting structure based on joint-cutting explosive bag | |
| CN212058512U (en) | Deep hole axial non-coupling top-cutting blasting tube | |
| CN103322872B (en) | A kind of method improving Long-hole Bench Blasting vibration frequency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220601 Address after: Room 1401, block C, Yuanda center, No. 5, Huizhong Road, Chaoyang District, Beijing 100101 Patentee after: BEIJING DADE GUANGYUAN PETROLEUM TECHNOLOGY SERVICE Co.,Ltd. Address before: Room 2804, unit 5, building 1, Jinxiu Huayuan, No. 11, Renmin East Road, Saybagh District, Korla City, Bazhou, Xinjiang Uygur Autonomous Region 841000 Patentee before: Xinjiang Dade Guangyuan Petroleum Technology Service Co.,Ltd. |