CN219158920U - Light feeding drill rod - Google Patents
Light feeding drill rod Download PDFInfo
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- CN219158920U CN219158920U CN202222368163.8U CN202222368163U CN219158920U CN 219158920 U CN219158920 U CN 219158920U CN 202222368163 U CN202222368163 U CN 202222368163U CN 219158920 U CN219158920 U CN 219158920U
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- drill rod
- rod main
- buoyancy block
- drill pipe
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Abstract
The utility model relates to the technical field of open-circuit drilling in oceans, in particular to a light feeding drill rod, which comprises a drill rod main body, wherein a buoyancy block is arranged on the outer side of the drill rod main body along the length direction of the drill rod main body, and the buoyancy block is arranged on the outer side of the drill rod main body in a surrounding manner. Aiming at the defects that open-circuit drilling is mostly adopted in ocean drilling, in the deep drilling process of deep water, the safety redundancy of underground complex accidents is small, the drilling tool is easy to fatigue and damage under high load, the requirement on a lifting system is high and the like due to too large load of the drilling tool, the utility model provides a light feeding drill rod with a buoyancy block, which is suitable for open-circuit drilling in ocean drilling, and can be used in combination with an underwater power drilling tool or a power device, so that the weight of the drilling tool in sea water is effectively reduced, the whole weight is reduced, the safety of the drilling tool, the low load of the lifting system and the like are facilitated, and the safe, efficient and economic ocean drilling is realized.
Description
Technical Field
The utility model relates to the technical field of open-sea drilling, in particular to a light feeding drill rod.
Background
Drill rods used in open-circuit drilling in ocean drilling in the prior art are typically iron drill rods, aluminum drill rods and alloy drill rods. The Russian land scientist adopts an aluminum alloy drill rod to realize 12000 m deep well drilling, and the cost of the special aluminum alloy drill rod is high in order to meet the requirement of tensile strength.
High strength steel drill pipe is commonly used in deep drilling on offshore rigs. As the well depth continues to deepen, the heavier the down-hole string, the higher the requirements on the lifting system of the drilling machine, the wellhead tool and the like, and the fatigue and damage of the drilling tool are easily caused, and meanwhile, more energy is consumed. With the continuous start of ocean drilling operation, deep water deep drilling presents a great challenge to a drilling tool, and at present, the cost of a special aluminum alloy drilling rod is high, the weight of a steel drilling rod is excessive, and the special aluminum alloy drilling rod has defects in the deep water deep drilling process.
Disclosure of Invention
The utility model aims at: in order to solve the problems in the prior art, the utility model provides a light feeding drill rod.
In order to solve the problems existing in the prior art, the utility model adopts the following technical scheme:
the utility model provides a light send-in drilling rod, is including the drilling rod main part, follows the length direction of drilling rod main part, the outside of drilling rod main part is provided with the buoyancy piece, the buoyancy piece encircle set up in the outside of drilling rod main part.
As an improvement of the technical scheme of the light feeding drill rod, the outer side of the buoyancy block is provided with a plurality of bolts, and the buoyancy block is connected with the drill rod main body through bolts.
As an improvement of the technical scheme of the light feeding drill rod, a plurality of bolts are arranged on the outer side of the buoyancy block at certain intervals, and the intervals between the adjacent bolts are equal.
As an improvement of the technical scheme of the light feeding drill rod, the outside of the buoyancy block is provided with a plurality of screw holes, and one screw hole corresponds to one bolt; the distances between adjacent screw holes are equal, and the screw holes are counter bores.
As an improvement of the technical scheme of the light feeding drill rod, the two ends of the buoyancy block are provided with the clamping hoops.
As an improvement of the technical scheme of the light feeding drill rod, the top of the drill rod main body is provided with a joint, and the joint is a double-step joint.
As an improvement of the technical scheme of the light feeding drill rod, the connector comprises a first step and a second step, wherein the first step is close to one end of the bottom end of the drill rod main body, the second step is in a shoulder shape, and the connector is an 18-degree shoulder connector.
As an improvement of the technical scheme of the light feeding drill rod, the drill rod main body is made of light aluminum alloy materials.
The utility model has the beneficial effects that:
aiming at the defects that open-circuit drilling is mostly adopted in ocean drilling, in the deep drilling process of deep water, the safety redundancy of underground complex accidents is small, the drilling tool is easy to fatigue and damage under high load, the requirement on a lifting system is high and the like due to too large load of the drilling tool, the utility model provides a light feeding drill rod with a buoyancy block, which is suitable for open-circuit drilling in ocean drilling, and can be used in combination with an underwater power drilling tool or a power device, so that the weight of the drilling tool in sea water is effectively reduced, the whole weight is reduced, the safety of the drilling tool, the low load of the lifting system and the like are facilitated, and the safe, efficient and economic ocean drilling is realized.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals illustrate: 1-a drill rod main body; 2-buoyancy blocks; 3-bolts; 4-screw holes; 5-clamping hoop; a 6-linker; 7-a first step; 8-second step.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments of the present utility model.
As shown in fig. 1, a light feeding drill rod comprises a drill rod main body 1, wherein a buoyancy block 2 is arranged on the outer side of the drill rod main body 1 along the length direction of the drill rod main body 1, and the buoyancy block 2 is arranged on the outer side of the drill rod main body 1 in a surrounding mode.
When the utility model is used, the drill rod main body 1 is put into a well by being combined with an underwater power drill or a power device.
According to the utility model, the buoyancy block 2 is arranged on the outer side of the drill rod main body 1, when the drill rod main body 1 is placed in a well, buoyancy can be provided for the drill rod main body 1 through the buoyancy block 2 so as to offset the sinking force of the drill rod main body 1 in the well, the effect of reducing the load of the drilling tool is realized, the situations that when the well is drilled in the ocean, the safety redundancy of the complex accident in the well caused by too large load of the drilling tool is small, the drilling tool is easy to fatigue damage under high load, the requirement on a lifting system is high and the like are avoided, the weight of the drilling tool in the sea water is effectively reduced, the weight of the whole tubular column is reduced, the safety of the drilling tool, the low load of the lifting system and the like are facilitated, and the safe, efficient and economic ocean drilling is realized.
Preferably, the drill rod main body 1 is made of a light aluminum alloy material, and the weight of the drill rod main body 1 can be further reduced through the light aluminum alloy material, so that the overall weight is smaller.
As an embodiment of the present utility model, a plurality of bolts 3 are provided on the outer side of the buoyancy block 2, and the buoyancy block 2 is connected to the drill pipe body 1 by bolts 3. Preferably, the bolts 3 are stainless steel bolts 3, which meet the marine corrosion requirements.
In detail, the buoyancy block 2 may be connected to the drill pipe body 1 by a conventional connection method such as a snap connection or a socket connection, but is preferably connected by a bolt 3. Because the cost of the bolt 3 connection is lower, and the buoyancy block 2 is easy to detach and convenient to install or detach.
Further, a plurality of bolts 3 are provided on the outer side of the buoyancy block 2 at a certain pitch, and the pitches between adjacent bolts 3 are equal. Because a plurality of bolts 3 are arranged at the outer side of the buoyancy block 2 at the same interval, and the buoyancy block 2 is connected with the drill rod main body 1 through the bolts 3, the integral balance of the drill rod main body 1 and the buoyancy block 2 after being connected can be ensured. Further, a plurality of screw holes 4 are formed in the outer portion of the buoyancy block 2, and one screw hole 4 corresponds to one bolt 3; the spacing between adjacent screw holes 4 is equal, and the screw holes 4 are counter bores. Because the space in the well drilling is smaller, a plurality of counter bores are arranged on the buoyancy block 2, so that the upper surface of the bolt 3 is flush with the outer side surface of the buoyancy block 2, and the movement of the drill rod main body 1 and the buoyancy block 2 in the well drilling can be ensured. As an example of this embodiment, the drill rod body 1 is a drill rod having an inner diameter of (4-1/2 "), which satisfies the requirement of wire line coring. The size of the buoyancy block 2 is not more than 9-5/8', thereby meeting the use of the No. 2 core filling and also meeting the operation requirement of the vertical derrick.
Both ends of buoyancy block 2 all are provided with clamp 5, not only can restrict the position of the upper end and the lower extreme of buoyancy block 2 through clamp 5, prevent that buoyancy block 2 from upwards moving, can also further avoid buoyancy block 2 to break away from drilling rod main part 1.
In the utility model, the joint 6 is arranged at the top of the drill rod main body 1, and the joint 6 is a double-step joint 6, so that the tensile strength of the drill rod can be improved. Preferably, the joint 6 comprises a first step 7 and a second step 8, wherein the first step 7 is close to one end of the bottom end of the drill rod main body 1, the second step 8 is in a shoulder shape, and the joint 6 is an 18-degree shoulder joint 6, so that the general wellhead tool requirements are met.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (8)
1. The utility model provides a light send-in drilling rod, is including the drilling rod main part, its characterized in that, along the length direction of drilling rod main part, the outside of drilling rod main part is provided with the buoyancy piece, the buoyancy piece encircle set up in the outside of drilling rod main part.
2. The lightweight feed drill pipe of claim 1, wherein a plurality of bolts are provided on the outside of the buoyancy block, the buoyancy block being bolted to the drill pipe body.
3. The lightweight feed drill pipe of claim 2, wherein a plurality of the bolts are on the outside of the buoyancy block at a pitch, the pitch between adjacent bolts being equal.
4. A lightweight feed drill pipe as recited in claim 3, wherein a plurality of screw holes are provided on the exterior of said buoyancy block, one of said screw holes corresponding to each of said bolts; the distances between adjacent screw holes are equal, and the screw holes are counter bores.
5. The lightweight feed drill pipe of claim 1, wherein the buoyancy block is provided with clips at both ends.
6. The lightweight feed drill pipe of claim 1, wherein the top of the drill pipe body is provided with a joint, the joint being a double step joint.
7. The lightweight feed drill pipe of claim 6, wherein the joint comprises a first step and a second step, the first step being adjacent an end of the bottom end of the drill pipe body, the second step being in the form of a shoulder, the joint being an 18 degree shoulder joint.
8. The lightweight feed drill pipe of claim 1, wherein the drill pipe body is a lightweight aluminum alloy drill pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222368163.8U CN219158920U (en) | 2022-09-06 | 2022-09-06 | Light feeding drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222368163.8U CN219158920U (en) | 2022-09-06 | 2022-09-06 | Light feeding drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219158920U true CN219158920U (en) | 2023-06-09 |
Family
ID=86616451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222368163.8U Active CN219158920U (en) | 2022-09-06 | 2022-09-06 | Light feeding drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219158920U (en) |
-
2022
- 2022-09-06 CN CN202222368163.8U patent/CN219158920U/en active Active
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