CN115059433A - Drilling guide pipe bearing rapid installation base plate and installation method thereof - Google Patents
Drilling guide pipe bearing rapid installation base plate and installation method thereof Download PDFInfo
- Publication number
- CN115059433A CN115059433A CN202210623679.4A CN202210623679A CN115059433A CN 115059433 A CN115059433 A CN 115059433A CN 202210623679 A CN202210623679 A CN 202210623679A CN 115059433 A CN115059433 A CN 115059433A
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- Prior art keywords
- short section
- guide pipe
- ring
- sitting
- shaped ring
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- 238000009434 installation Methods 0.000 title claims abstract description 28
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 210000002445 nipple Anatomy 0.000 claims description 37
- 238000003466 welding Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000013535 sea water Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 5
- 238000011900 installation process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a bearing rapid installation base plate of a drilling guide pipe and an installation method thereof, wherein the bearing rapid installation base plate comprises a guide pipe short section, a C-shaped ring and a sitting short section, the guide pipe short section is welded on the outer side of the guide pipe, the outer diameter of the guide pipe short section is smaller than the inner diameter of the sitting short section, the C-shaped ring is arranged on the outer side of the guide pipe short section and used for locking the guide pipe short section and the sitting short section, and the C-shaped ring is made of elastic metal materials; a locking groove matched with the C-shaped ring is processed on the inner wall of the sitting short section, and the outer part of the sitting short section is welded with the wing plate and the bottom plate; a check ring is arranged on the upper end face of the sitting short section, and the inner diameter of the check ring is the same as that of the sitting short section; a plurality of threaded holes are uniformly distributed on the retaining ring, and variable diameter bolts are arranged in the threaded holes. The base plate simplifies the installation process, reduces the risk of personnel working in the moon pool, and reduces the use cost; and the multi-wing plate structure enhances the whole bearing capacity.
Description
Technical Field
The invention relates to the technical field of drilling, in particular to a base plate for quickly mounting a drilling guide pipe in a bearing manner and a mounting method thereof.
Background
In the current marine drilling, the traditional guide base mostly adopts the form of flange welding and pipe connection, a special tool is needed to be used below the guide base in the installation process, the installation process is complex, auxiliary equipment is numerous, great inconvenience is brought to the smooth operation of the marine drilling engineering, and the efficiency is low.
Disclosure of Invention
The invention aims to provide a quick bearing installation base plate for a drilling guide pipe and an installation method thereof, which are used for solving the problems in the prior art, greatly reducing the connection time and labor intensity of the base plate and simplifying the installation process.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a bearing and rapid mounting base plate for a drilling guide pipe, which comprises a guide pipe short section, a C-shaped ring and a seat short section,
the guide pipe short section is welded on the outer side of the guide pipe, the outer diameter of the guide pipe short section is smaller than the inner diameter of the sitting short section, the C-shaped ring is arranged on the outer side of the guide pipe short section and used for locking the guide pipe short section and the sitting short section, and the C-shaped ring is made of elastic metal materials;
a locking groove matched with the C-shaped ring is processed on the inner wall of the sitting short section, and the outer part of the sitting short section is welded with the wing plate and the bottom plate; a check ring is arranged on the upper end face of the sitting short section, and the inner diameter of the check ring is the same as that of the sitting short section; a plurality of threaded holes are uniformly distributed in the retaining ring, and reducing bolts are installed in the threaded holes.
Preferably, the outer diameter of the catheter sub is 1-2mm smaller than the inner diameter of the landing sub.
Preferably, the C-shaped ring is made of spring steel.
Preferably, the retainer ring is machined from carbon structural steel.
Preferably, four threaded holes are uniformly distributed on the retaining ring,
preferably, the quantity of pterygoid lamina is eight, eight the pterygoid lamina is along the circumference equipartition of sitting the nipple joint, just the bottom and the bottom plate welding of pterygoid lamina are in the same place.
Preferably, the wing plate is provided with a round hole used as a hanging point of the base plate.
Preferably, the bottom plate is made of a whole steel plate, and bottom plates with different external dimensions can be adopted according to different formation hardness and conduit length.
The invention also provides an installation method of the drilling guide pipe bearing rapid installation base plate, which is applied to the drilling guide pipe bearing rapid installation base plate and comprises the following steps:
the first step is as follows: the base plate is placed on the moon pool auxiliary trolley, the conduit string provided with the conduit nipple and the C-shaped ring is lowered into seawater through the drill rod lowering tool, and when the conduit nipple and the C-shaped ring reach the upper part of the retainer ring, lowering is suspended;
the second step: checking the check ring and the C-shaped ring, and starting to lower the pipe string after the check is correct; when the C-shaped ring starts to pass through the retaining ring, the C-shaped ring can be contracted into the groove of the pipe nipple by radial pressure until the outer diameter of the C-shaped ring is compressed to be consistent with the inner diameter of the retaining ring;
the third step: continuing to lower the pipe string until the inclined plane at the upper part of the pipe nipple passes through the check ring, and suspending the lowering; at the moment, the reducing bolt is manually rotated forwards by a plurality of buckles, so that the reducing bolt is contacted with the inclined plane of the guide pipe nipple;
the fourth step: the pipe cluster slowly lifts, and the pipe nipple joint drives the common upward movement of retaining ring this moment, is the state of strutting when C type ring motion is to the former position of sitting of retaining ring, and the arch of retaining ring lower part can get into the locking inslot of the nipple joint of sitting this moment, accomplishes the installation of basal disc so far promptly.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the connecting structure of the conduit bearing base plate is optimized, the installation process is simplified, and the risk of personnel working in a moon pool is reduced;
2. the traditional base plate feeding tool is not required to be independently arranged, and the base plate and the guide pipe are drilled in one time, so that the use cost is reduced;
3. the multi-wing plate structure enhances the whole bearing capacity;
4. the construction cost is low, and when a well drilling accident occurs and a well needs to be abandoned, operation procedures such as salvaging and the like do not need to be considered, and a steel cable does not need to be cut in emergency like the traditional base plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a load-bearing quick-mount template;
FIG. 2 is a flow chart of the operation of the load-bearing quick-mount template;
wherein, 1 is the pipe nipple joint, 2 is C type ring, 3 is the retaining ring, 4 are reducing bolt, 5 are the landing nipple joint, 6 are the pterygoid lamina, 7 are the bottom plate, 8 are low pressure well head and annex, 9 are the pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a quick bearing installation base plate for a drilling guide pipe and an installation method thereof, which are used for solving the problems in the prior art, greatly reducing the connection time and labor intensity of the base plate and simplifying the installation process.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-2, the present embodiment provides a drilling pipe load-bearing rapid-installation template and an installation method thereof, and particularly provides a pipe load-bearing template and a rapid-connection accessory for use in marine drilling. The basic disc mainly has the following functions: is connected with the guide pipe 9 into a whole, is located on the seabed mud line to bear the weight of the guide pipe 9 and a wellhead, and has the functions of assisting in keeping the horizontal posture of the guide pipe 9 and the like.
This base plate is different from flange welding and pipe connection's form in the past, has designed a "C type ring high-speed joint" structure, through adopting this structure, can greatly reduce time and intensity of labour that the base plate is connected.
Referring to fig. 1, in particular, a pipe nipple 1 and a C-shaped ring 2 in a bearing quick installation base plate of a drilling pipe are quick connection accessories. The upper end and the lower end of the guide pipe nipple 1 are the same as the guide pipe 9 and are connected with the guide pipe 9 through welding; the outer diameter of the pipe nipple 1 is 1-2mm smaller than that of the sitting nipple 5, so that the pipe nipple is convenient to pass through, and the C-shaped ring 2 is not too thick.
The retainer ring 3, the reducing bolt 4, the seat short section 5, the wing plate 6 and the bottom plate 7 are main body structures of the bearing base plate. Wherein, retaining ring 3 is the part that has higher intensity that is formed by high-quality carbon structural steel processing, places in the 5 up end of landing nipple joint during this retaining ring 3 uses, and the internal diameter is the same with the 5 internal diameters of landing nipple joint. 4 threaded holes are uniformly distributed in the retainer ring 3, reducing bolts 4 are arranged in the threaded holes, and the bolts mainly have the function of changing the passing diameter of the retainer ring 3.
The landing nipple 5 is a key component for realizing quick connection on the base plate. Its internal diameter need can pass through pipe nipple joint 1, and process out with C type ring 2 complex locking groove. The outer part is welded with the wing plate 6 and the bottom plate 7, and directly bears the weight of the whole guide pipe column.
The wing plates 6 and the bottom plate 7 are the basic structure of the base plate, wherein the wing plates 6 are eight, are uniformly distributed along the circumference, are welded with the intersection of the floor 7, and are provided with round holes which are used as hanging points of the base plate. The bottom plate 7 is made of a whole steel plate and is designed into different overall dimensions according to different stratum hardness and conduit length.
Referring to fig. 2, the connection operation method of the base plate and the conduit mainly comprises four steps:
the first step is as follows: the base plate is placed on the auxiliary trolley of the moon pool, a conduit string provided with a conduit nipple 1 and a C-shaped ring 2 is arranged in seawater through a special drill rod running tool, and when the conduit nipple 1 and the C-shaped ring 2 reach the retainer ring 3, the running is suspended.
The second step is that: checking the centering of the retainer ring 3 and the C-shaped ring 2, the condition of smearing lubricating oil and the like, and starting to slowly put down the conduit string after checking without errors. When the C-shaped ring 2 starts to pass through the retainer 3, it will be compressed into the groove of the pipe nipple 1 by radial pressure until the outer diameter of the C-shaped ring 2 is compressed to be consistent with the inner diameter of the retainer 3.
The third step: and continuing to slowly lower the pipe string until the inclined plane at the upper part of the pipe nipple 1 passes through the retainer ring 3, and suspending the lowering. At the moment, the reducing bolt 4 is manually rotated forwards by a plurality of buckles to be in contact with the inclined plane of the guide pipe nipple 1.
The fourth step: and slowly lifting the guide pipe string, wherein the guide pipe short section 1 drives the check ring 3 to move upwards together. When C type ring 2 moved to the former position of sitting of retaining ring 3, because do not have the restraint of retaining ring 3, its external diameter can strut naturally, and the arch of retaining ring 3 lower part can get into the locking recess of the nipple joint 5 of sitting this moment in, accomplishes the installation of basal disc so far promptly.
After the installation step is completed, the template can be directly sent to the seabed with the pipe 9 using a drill pipe running tool without the need for a template auxiliary running tool such as a conventional wireline winch.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.
Claims (9)
1. The utility model provides a drilling pipe bearing installs basal disc fast which characterized in that: comprises a guide pipe short section, a C-shaped ring and a seat short section,
the guide pipe short section is welded on the outer side of the guide pipe, the outer diameter of the guide pipe short section is smaller than the inner diameter of the sitting short section, the C-shaped ring is arranged on the outer side of the guide pipe short section and used for locking the guide pipe short section and the sitting short section, and the C-shaped ring is made of elastic metal materials;
a locking groove matched with the C-shaped ring is processed on the inner wall of the sitting short section, and the outer part of the sitting short section is welded with the wing plate and the bottom plate; a check ring is arranged on the upper end face of the sitting short section, and the inner diameter of the check ring is the same as that of the sitting short section; a plurality of threaded holes are uniformly distributed in the retaining ring, and reducing bolts are installed in the threaded holes.
2. The drilling pipe weight bearing quick install template of claim 1, wherein: the outer diameter of the guide pipe nipple is 1-2mm smaller than the inner diameter of the sitting nipple.
3. The drilling conductor weight bearing quick installation template of claim 1, wherein: the C-shaped ring is made of spring steel.
4. The drilling conductor weight bearing quick installation template of claim 1, wherein: the check ring is made of carbon structural steel.
5. The drilling conductor weight bearing quick installation template of claim 1, wherein: four threaded holes are uniformly distributed in the check ring.
6. The drilling conductor weight bearing quick installation template of claim 1, wherein: the quantity of pterygoid lamina is eight, eight the circumference equipartition of pterygoid lamina along the nipple joint of sitting, just the bottom and the bottom plate welding of pterygoid lamina are in the same place.
7. The drilling conductor weight bearing quick installation template of claim 1, wherein: and the wing plate is provided with a round hole used as a hanging point of the base plate.
8. The drilling pipe weight bearing quick install template of claim 1, wherein: the bottom plate is made of a whole steel plate, and bottom plates with different external dimensions can be adopted according to different stratum hardness and conduit length.
9. A method for installing a bearing rapid-installation base plate of a drilling guide pipe, which is applied to the bearing rapid-installation base plate of the drilling guide pipe as claimed in any one of claims 1 to 8, and is characterized by comprising the following steps:
the first step is as follows: the base plate is placed on the moon pool auxiliary trolley, a conduit string provided with a conduit nipple and a C-shaped ring is lowered into seawater through a drill rod lowering tool, and when the conduit nipple and the C-shaped ring reach the upper part of the retainer ring, lowering is suspended;
the second step is that: checking the check ring and the C-shaped ring, and starting to lower the pipe string after the check is correct; when the C-shaped ring starts to pass through the retaining ring, the C-shaped ring can be contracted into the groove of the pipe nipple by radial pressure until the outer diameter of the C-shaped ring is compressed to be consistent with the inner diameter of the retaining ring;
the third step: continuing to lower the pipe string until the inclined plane at the upper part of the pipe nipple passes through the check ring, and suspending the lowering; at the moment, the reducing bolt is manually rotated forwards by a plurality of buckles, so that the reducing bolt is contacted with the inclined plane of the guide pipe nipple;
the fourth step: the pipe cluster is slowly lifted, the pipe nipple drives the check ring to move upwards jointly at this moment, the C-shaped ring moves to the original position of the check ring and is in a strutting state, and the protrusion of the lower part of the check ring can enter the locking groove of the nipple, so that the installation of the base disc is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210623679.4A CN115059433A (en) | 2022-06-02 | 2022-06-02 | Drilling guide pipe bearing rapid installation base plate and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210623679.4A CN115059433A (en) | 2022-06-02 | 2022-06-02 | Drilling guide pipe bearing rapid installation base plate and installation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115059433A true CN115059433A (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210623679.4A Pending CN115059433A (en) | 2022-06-02 | 2022-06-02 | Drilling guide pipe bearing rapid installation base plate and installation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080087435A1 (en) * | 2006-07-12 | 2008-04-17 | Reddy Sanjay K | Diverless connector for bend restrictors and/or bend stiffeners |
| CN204533924U (en) * | 2015-03-12 | 2015-08-05 | 浙江益华制冷设备有限公司 | Idle call quick connector |
| CN105317404A (en) * | 2014-07-21 | 2016-02-10 | 中国海洋石油总公司 | Underwater drilling template base, underwater drilling template and underwater drilling template installation structure |
| CN212317915U (en) * | 2020-04-01 | 2021-01-08 | 中国地质科学院勘探技术研究所 | Wellhead stabilizing device for submarine drilling |
| CN113187438A (en) * | 2021-05-28 | 2021-07-30 | 中国石油大学(北京) | Installation device and installation method of deep water surface layer conduit |
-
2022
- 2022-06-02 CN CN202210623679.4A patent/CN115059433A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080087435A1 (en) * | 2006-07-12 | 2008-04-17 | Reddy Sanjay K | Diverless connector for bend restrictors and/or bend stiffeners |
| CN105317404A (en) * | 2014-07-21 | 2016-02-10 | 中国海洋石油总公司 | Underwater drilling template base, underwater drilling template and underwater drilling template installation structure |
| CN204533924U (en) * | 2015-03-12 | 2015-08-05 | 浙江益华制冷设备有限公司 | Idle call quick connector |
| CN212317915U (en) * | 2020-04-01 | 2021-01-08 | 中国地质科学院勘探技术研究所 | Wellhead stabilizing device for submarine drilling |
| CN113187438A (en) * | 2021-05-28 | 2021-07-30 | 中国石油大学(北京) | Installation device and installation method of deep water surface layer conduit |
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