CN210317187U - Counter weight protective pipe device for water drilling - Google Patents
Counter weight protective pipe device for water drilling Download PDFInfo
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- CN210317187U CN210317187U CN201920885954.3U CN201920885954U CN210317187U CN 210317187 U CN210317187 U CN 210317187U CN 201920885954 U CN201920885954 U CN 201920885954U CN 210317187 U CN210317187 U CN 210317187U
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Abstract
The utility model relates to a drilling counter weight pillar device on water. The utility model aims at providing a simple structure, convenient to use's drilling counter weight pillar device on water to ensure that the water proof pillar keeps the vertical state. The technical scheme of the utility model is that: the utility model provides a drilling counter weight pillar device on water which characterized in that: the water-resisting riser protection pipe is provided with a counterweight protection pipe, wherein a counterweight mechanism is arranged on the outer wall of the counterweight protection pipe, and a connecting mechanism for coaxially connecting the water-resisting protection pipe is arranged at the upper end of the counterweight protection pipe. The utility model is suitable for an in the engineering reconnaissance drilling on water.
Description
Technical Field
The utility model relates to a drilling counter weight pillar device on water. The drilling tool is suitable for water engineering exploration drilling.
Background
When the self-elevating exploration platform is used for exploration operation on water, the platform needs to be deeply inserted into a seabed soil layer through a pile leg to be lifted to a certain height away from the horizontal level, the drilling machine is fixedly installed at the center of a moon pool of the platform, but under the influence of sea tide variable amplitude water level, when the water depth exceeds 20m, when a 219mm water resisting protective pipe is installed, the water resisting protective pipe cannot be vertically installed from a hole bottom mud inlet end to the center of a vertical shaft of the drilling machine due to the common influence of tide, water depth, wind waves and the like, and as a result, in the drilling process of drilling and re-drilling, the drilling tool is often placed by a hole bottom water resisting protective pipe opening, so that the drilling and the delay time caused by the drilling are influenced.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: aiming at the problems, the overwater drilling counterweight protection pipe device with simple structure and convenient use is provided to ensure that the waterproof protection pipe keeps a vertical state.
The utility model adopts the technical proposal that: the utility model provides a drilling counter weight pillar device on water which characterized in that: the water-resisting riser protection pipe is provided with a counterweight protection pipe, wherein a counterweight mechanism is arranged on the outer wall of the counterweight protection pipe, and a connecting mechanism for coaxially connecting the water-resisting protection pipe is arranged at the upper end of the counterweight protection pipe.
The counterweight protective tube is provided with a plurality of counterweight steel sleeves which are coaxially sleeved on the counterweight protective tube.
An upper fixing ring and a lower fixing ring are coaxially welded and fixed on the outer wall of the counterweight protective pipe, and the counterweight steel sleeve is arranged between the upper fixing ring and the lower fixing ring.
The connecting mechanism is a flange plate coaxially fixed at the upper end of the counterweight protection pipe.
The counterweight mechanism is arranged on the upper part of the counterweight protection pipe.
The utility model has the advantages that: the utility model discloses coaxial joint utilizes the weight of below counter weight mechanism in current water proof pillar lower extreme, plays the bottom pillar perpendicularly and drill way to make the water proof pillar can overcome influences such as morning and evening tides ocean current, depth of water, stormy waves, and make the water proof pillar of going into in the subsoil under the lower water and be in rig vertical scroll center and keep perpendicular, play the purpose that prevents the drilling slope, thereby reduced the assistance-time, improved work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
FIG. 2 is a sectional view of a weight steel sleeve in the embodiment.
Detailed Description
As shown in fig. 1, the counterweight casing pipe device for water drilling in the present embodiment has a counterweight casing pipe 1 with a size matched with that of the riser casing pipe, a counterweight mechanism is disposed on the sidewall of the upper half portion of the counterweight casing pipe 1, and a connecting mechanism is disposed at the upper end of the counterweight casing pipe.
In this embodiment, the counterweight protective tube 1 includes an upper fixing ring 3 and a lower fixing ring 4 which are coaxially welded and fixed on the sidewall of the counterweight protective tube 1, a plurality of counterweight steel sleeves 2 (see fig. 2) are coaxially sleeved on the counterweight protective tube 1 between the upper fixing ring 3 and the lower fixing ring 4, and the counterweight steel sleeves are defined by the upper fixing ring 3 and the lower fixing ring 4 which are located at the upper and lower positions of the counterweight protective tube.
In this example, the connecting mechanism is a flange 5 coaxially fixed on the upper end of the counterweight protection pipe 1, and the counterweight protection pipe device can be coaxially connected with the lower end of the waterproof protection pipe through the flange 5 on the upper end of the counterweight protection pipe.
The flange 5 of the embodiment is a cylinder with the length of 22mm, the outer diameter of 340mm and the inner diameter of 220mm, wherein 12 screw holes with the diameter of 21mm are uniformly distributed in the diameter of 300mm of the flange; the counterweight protective pipe 1 is 6000mm long and is a seamless steel pipe with the diameter of 219 multiplied by 10; the upper positioning ring 3 and the lower positioning ring 5 are made of 22 round steel with the diameter of 691 mm; the length of the counterweight steel sleeve 2 is 100mm, the outer diameter dimension is 340mm cylinder, and the inner diameter dimension is 220 mm.
In this embodiment, the counterweight protection tube 1 is sequentially arranged from top to bottom: welding and fixing the flange 5 between 0 and 22 mm; the length of the cylinder is 22-278 mm, and the diameter of the cylinder is 219 mm; the length of the upper fixing ring is 278-300 mm, and the upper fixing ring with the diameter of 22mm is fixed through electric welding; the length of the steel sleeve ranges from 300mm to 3300mm, and 30 steel sleeves with the length of 100mm are connected in series; 3300-3322 mm, and fixing a lower fixing ring with a diameter of 22mm by electric welding; the length of the cylinder is 3322-6000 mm, and the diameter of the cylinder is 219 mm.
The specific application method of this example is as follows: the balance weight protective pipe device firstly passes through a central guide pipe of a moon pool of a self-elevating exploration platform by a drilling machine winch, and an upper end flange plate of the balance weight protective pipe device is connected with a flange bolt of a waterproof protective pipe and is extended to an orifice of a drilling machine of the self-elevating platform (all flanges are evenly distributed in 12 equal parts in a plane with the diameter of 300mm, the diameter of a screw hole is 21mm, and the flanges are fastened by bolts, nuts and gaskets). The function is that the bottom end protective pipe is vertical to the orifice through a counterweight mechanism on the counterweight protective pipe, and the orifice end sleeve guides the protective pipe through the center conduit of the moon pool, so that the waterproof protective pipe is vertical to the vertical shaft of the drilling machine from top to bottom.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can change, add or replace the above examples within the scope of the present invention.
Claims (5)
1. The utility model provides a drilling counter weight pillar device on water which characterized in that: the water-proof protective pipe is provided with a counterweight protective pipe (1), a counterweight mechanism is arranged on the outer wall of the counterweight protective pipe (1), and a connecting mechanism for coaxially connecting the water-proof protective pipe is arranged at the upper end of the counterweight protective pipe (1).
2. The water drilling counterweight shroud device of claim 1, wherein: the counterweight protective pipe (1) is provided with a plurality of counterweight steel sleeves (2) which are coaxially sleeved on the counterweight protective pipe (1).
3. The water drilling counterweight shroud device of claim 2, wherein: an upper fixing ring (3) and a lower fixing ring (4) are coaxially welded and fixed on the outer wall of the counterweight protective pipe (1), and the counterweight steel sleeve (2) is arranged between the upper fixing ring and the lower fixing ring.
4. The water drilling counterweight shroud device of claim 1, wherein: the connecting mechanism is a flange plate (5) coaxially fixed at the upper end of the counterweight protective pipe (1).
5. The water drilling counterweight shroud device of claim 1, wherein: the counterweight mechanism is arranged on the upper part of the counterweight protection pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885954.3U CN210317187U (en) | 2019-06-13 | 2019-06-13 | Counter weight protective pipe device for water drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885954.3U CN210317187U (en) | 2019-06-13 | 2019-06-13 | Counter weight protective pipe device for water drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210317187U true CN210317187U (en) | 2020-04-14 |
Family
ID=70143515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920885954.3U Active CN210317187U (en) | 2019-06-13 | 2019-06-13 | Counter weight protective pipe device for water drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210317187U (en) |
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2019
- 2019-06-13 CN CN201920885954.3U patent/CN210317187U/en active Active
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