CN106988682B - A kind of pile legs of self-elevating drilling platform actively pierces through drilling target drill and method - Google Patents
A kind of pile legs of self-elevating drilling platform actively pierces through drilling target drill and method Download PDFInfo
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- CN106988682B CN106988682B CN201710257466.3A CN201710257466A CN106988682B CN 106988682 B CN106988682 B CN 106988682B CN 201710257466 A CN201710257466 A CN 201710257466A CN 106988682 B CN106988682 B CN 106988682B
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- branch
- rock bit
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- 238000005553 drilling Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000011435 rock Substances 0.000 claims abstract description 43
- 102000002322 Egg Proteins Human genes 0.000 claims abstract description 30
- 108010000912 Egg Proteins Proteins 0.000 claims abstract description 30
- 210000003278 egg shell Anatomy 0.000 claims abstract description 30
- 239000002689 soil Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000013535 sea water Substances 0.000 claims description 3
- 239000010437 gem Substances 0.000 claims description 2
- 229910001751 gemstone Inorganic materials 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
- E21B7/185—Drilling by liquid or gas jets, with or without entrained pellets underwater
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of pile legs of self-elevating drilling platform actively to pierce through drilling target drill and method, wherein the target drill includes that top is provided with the drill main body of male joint and bottom offers branch's rock bit of hydrophthalmia；Drill main body can be connected by male joint with the drill string bottom of drilling machine；The mandrel of multiple tube column structures is fixedly installed in multiple spot in a distributed manner for the bottom of drill main body, and multiple branch's rock bit are separately mounted on each mandrel, and can be rotated around mandrel；It is additionally provided with inner flow passage inside drill main body, intermediate duct is offered in mandrel, the intermediate duct of mandrel is connected with the inner flow passage of drill main body, and the hydrophthalmia of branch's rock bit and the intermediate duct of mandrel are connected.The present invention can be realized bore that large area expeditiously destroys " egg shell " stratum under one time actively pierces through operation, be greatly decreased and remove drill string operation, " egg shell " stratum operation expense, effective guarantee operation safety are broken in reduction active.
Description
Technical field
The present invention relates to a kind of target drill and method more particularly to a kind of pile legs of self-elevating drilling platform masters of breaking ground that drill
It is dynamic to pierce through drilling target drill and method.
Background technique
Self-elevating drilling platform is that sea is drilled one of important equipment of well, is had become at present in order to which 120 meters of the depth of water with inland sea
Domain is drilled the main force of well operations equipment.Self-elevating drilling platform supports hull and drilling machine etc. by the spud leg for standing on seabed and sets
Standby, hull and operating equipment rise to certain height above sea level, carry out probing and completion practice.However, standing in seabed superficial part soil
Spud leg in layer bears hull, equipment and operating load, can inevitably destroy seabed superficial part soil layer and unstability.Jack-up rigs are flat
The phenomenon that platform spud leg penetrates submarine soil layer suddenly and quickly enters mud referred to as " is pierced through ".Puncture accident occurs for self-elevating drilling platform
When, platform can be damaged, or even sinking, threaten personnel safety, economic loss is huge.The puncture accident of burst is jack up
One cannot be neglected accident risk during drilling platforms safety work.In order to avoid piercing through the generation of accident, need sufficiently
Self-elevating drilling platform is proved in the operation feasibility of target well site position, the final driving depth of science judgment spud leg and the soil body are held
Loading capability.Depth is shallower if it exists and the hard stratum of thinner thickness, and be located at the thicker soil intensity under the thin hard stratum compared with
It is low, can image be compared to " egg shell " stratum, pile legs of self-elevating drilling platform is stepped down on such " egg shell " stratum, can be faced
Greatly pierce through risk.In order to take precautions against puncture risk, before the position of self-elevating drilling platform target well site in place, need to artificially locate
Reason is fallen to design " egg shell " stratum at spud leg position, i.e., breaks " egg shell " using actively piercing through bore mode.
" egg shell " stratum brill is carried out currently, actively piercing through to generally use conventional drilling drill bit or be equipped with re-drill bit
Hole.In order to improve the spud leg bearing capacity of self-elevating drilling platform, generally the huge shoe of sectional area can be installed in spud leg bottom
Structure, and huge shoe make spud leg step down in the area on submarine soil layer also can be huge, therefore avoid spud leg occur pierce through thing
Therefore active pierce through drilling area also can be huge.Break huge " egg shell " stratum of area to actively drill, needs
Dozens or even hundreds of hole is bored in stratum, causes to need to remove drill string ability tens times even up to a hundred times using conventional bit drilling
Bore operation is actively pierced through in completion, and operating efficiency is extremely low, and operating cost is high, conventional for the marine bore operation of Gao Fei
Bit bore realizes that the mode actively pierced through is less economical.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of pile legs of self-elevating drilling platform, actively puncture drilling is dedicated
Drill bit and method bore large area high efficiency under realizing one time by the multiple branch's rock bit installed in drill main body bottom
Operation is actively pierced through on ground destruction " egg shell " stratum, and preferably " egg shell " stratum is broken in drilling, is greatly decreased and is removed drill string
Operation effectively improves and actively pierces through bore operation efficiency, reduces and actively breaks " egg shell " stratum operation expense, to reduce from liter
Formula drilling platforms pitching pile pierces through risk, avoids the generation of self-elevating drilling platform unstability accident, ensures that operation safety provides technology
It supports.
To achieve the above object, the present invention takes following technical scheme: a kind of pile legs of self-elevating drilling platform actively puncture
Drill target drill, which is characterized in that the drill bit includes that top is provided with the drill main body of male joint and bottom offers water
Branch's rock bit of eye；Wherein, the drill main body can be connected by the male joint with the drill string bottom of drilling machine；Institute
The mandrel of multiple tube column structures, multiple branch's rotary drills are fixedly installed in multiple spot in a distributed manner for the bottom for stating drill main body
Head is separately mounted on each mandrel, and can be rotated around the mandrel；It is additionally provided with inner flow passage inside the drill main body,
Intermediate duct, the intermediate duct of the mandrel and the inner flow passage phase of the drill main body are offered in the mandrel
Connection, the hydrophthalmia of branch's rock bit and the intermediate duct of the mandrel are connected.
The drill main body is the vertebral body structure with discoid bottom.
Branch's rock bit uses the gear wheel of conventional Cone Bit Design；Alternatively, branch's rock bit uses
Gear wheel with Hydrodynamic design.
Various forms of branch's rock bit are installed on the difference mandrel of the drill main body bottom, are formed " 1+N "
Formula drill bit.
The drill main body and branch's rock bit are all made of steel body foundry engieering and are process.
A kind of pile legs of self-elevating drilling platform actively pierces through boring method, comprising the following steps:
1) pile legs of self-elevating drilling platform as described in any one of the above embodiments is actively pierced through to drilling target drill and passes through pin thread
Connector is installed to the drill string bottom of drilling machine, and the inner flow passage of drill main body is connected with the drilling mud pump in drilling circulation system
It is logical；
2) it controls and is bored under drilling machine, seawater is pumped into drill bit master by drill string by the drilling mud pump in drilling circulation system
Then body branches to each branch's rock bit, and the water from branch's rock bit bottom by the inner flow passage of drill main body
It is gone out in eye, forms water jet, hydraulic blow is formed to " egg shell " stratum；Cooperate each branch's rock bit rotation bring
Torque and drill string push the bit pressure provided, generate impact and shear action to " egg shell " stratum, break " egg shell ", destroy soil
The globality of body；Meanwhile multiple branch's rock bit being installed on mandrel of the drill main body bottom in multiple spot distribution, energy is bored under one time
" egg shell " hard stratum of larger area is enough destroyed, single time drilling is capable of forming the drilling of larger diameter, to realize jack up
The bore operation that drilling platform leg actively pierces through.
The invention adopts the above technical scheme, which has the following advantages: 1, a kind of jack-up rigs of the invention are flat
Platform spud leg actively pierces through drilling target drill and method, real by the multiple branch's rock bit installed in drill main body bottom
That bores that large area expeditiously destroys " egg shell " stratum under existing one time actively pierces through operation, and better drill breaks " egg shell "
Stratum is greatly decreased and removes drill string operation, effectively improves and actively pierces through bore operation efficiency, reduces actively with breaking " egg shell "
Layer operating cost pierces through risk to reduce self-elevating drilling platform pitching pile, avoids the generation of self-elevating drilling platform unstability accident,
Ensure that operation safety provides technical support.2, a kind of pile legs of self-elevating drilling platform of the invention actively pierces through drilling target drill
And method, by making sea in the internal setting runner that male joint is penetrated through to branch's rock bit bottom at the top of drill main body
Water is gone out to form water jet from hydrophthalmia, forms hydraulic blow to " egg shell " stratum；Each branch's rock bit is cooperated to rotate
Bring torque and drill string push the bit pressure provided, generate the effects of impact is with cutting to " egg shell " stratum, break " egg
Shell " destroys the globality of the soil body, reduces soil strength, to weaken soil body unit area bearing capacity, realizes that jack-up rigs are flat
The bore operation that platform spud leg actively pierces through, operating efficiency are higher.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of drill main body of the present invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As depicted in figs. 1 and 2, a kind of pile legs of self-elevating drilling platform provided by the invention actively pierces through drilling special jewel
Head comprising drill main body 1 and branch's rock bit 2.Wherein, drill main body 1 is the vertebral body structure with discoid bottom, is bored
The top of head main body 1 is provided with male joint 11, and drill main body 1 can be connected by male joint 11 with the drill string bottom of drilling machine
It connects；The mandrel 12 of multiple tube column structures is fixedly installed in multiple spot in a distributed manner for the discoid bottom of drill main body 1；Drill main body
Be additionally provided with inner flow passage 13 inside 1, offer intermediate duct (not shown) in mandrel 12, the intermediate duct of mandrel 12 with
The inner flow passage 13 of drill main body 1 is connected.Multiple branch's rock bit 2 are separately mounted on each mandrel 12, and can be around mandrel
12 rotations, to form " 1+N " formula drill bit；The bottom of branch's rock bit 2 offers hydrophthalmia 21, in hydrophthalmia 21 and mandrel 12
Between duct be connected.
In above-described embodiment, various forms of branch's rotary drills can be installed on the different mandrels 12 of 1 bottom of drill main body
First 2, to form " 1+N " formula drill bit；It is of course also possible to all using identical branch's rock bit 2.
In above-described embodiment, gear wheel that branch's rock bit 2 can be designed above using conventional rock bit；Alternatively,
Branch's rock bit 2 can be using the gear wheel with Hydrodynamic design for special formation, preferably to cut and impact failure
" egg shell " stratum.
In above-described embodiment, drill main body 1 and branch's rock bit 2 are all made of steel body foundry engieering and are process.
Drilling target drill is actively pierced through based on a kind of above-mentioned pile legs of self-elevating drilling platform, the present invention also provides one
Kind pile legs of self-elevating drilling platform actively pierces through boring method, comprising the following steps:
1) above-mentioned pile legs of self-elevating drilling platform is actively pierced through to drilling target drill to be installed to by male joint 11
The inner flow passage 13 of the drill string bottom of drilling machine, drill main body 1 is connected with the drilling mud pump in drilling circulation system.
2) it controls and is bored under drilling machine, seawater is pumped by drill string and actively pierces by the drilling mud pump in drilling circulation system
Drilling target drill is worn, each branch's rock bit 2 is then branched to by the inner flow passage 13 of drill main body 1, and from branch
It is gone out in the hydrophthalmia 21 or nozzle of 2 bottom of rock bit, forms water jet, hydraulic blow is formed to " egg shell " stratum；Cooperation
Each branch's rock bit 2 rotates bring torque and drill string pushes the bit pressure provided, to " egg shell " stratum generate impact with
The effects of cutting, breaks " egg shell ", destroys the globality of the soil body, reduces soil strength, holds to weaken soil body unit area
Power is carried, realizes the bore operation that pile legs of self-elevating drilling platform actively pierces through.Simultaneously as the discoid bottom of drill main body 1
Various forms of branch's rock bit 2 can be installed on mandrel 12 in multiple spot distribution, so that " 1+N " formula drill bit is formed, one time
Lower brill can destroy " egg shell " hard stratum of larger area, and single time drilling is capable of forming the drilling of larger diameter, more conventional tooth
The bore diameter that wheel drill bit cooperates the surface hole drilling mode for the tool that spuds in composed by reamer to be formed wants several times greater, effectively improves master
It is dynamic to pierce through drilling efficiency, round trip is reduced, operating cost is reduced.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, setting position and its connection type etc.
It may be changed, all equivalents and improvement carried out based on the technical solution of the present invention should not arrange
In addition in protection scope of the present invention.
Claims (9)
1. a kind of pile legs of self-elevating drilling platform actively pierces through drilling target drill, which is characterized in that the drill bit is set including top
The drill main body and bottom for being equipped with male joint offer branch's rock bit of hydrophthalmia；Wherein, the drill main body can pass through
The male joint is connected with the drill string bottom of drilling machine；The bottom of the drill main body is fixedly installed more in a distributed manner in multiple spot
The mandrel of a tube column structure, multiple branch's rock bit are separately mounted on each mandrel, and can be around the mandrel
Rotation；Be additionally provided with inner flow passage inside the drill main body, offer intermediate duct in the mandrel, the mandrel it is described
Intermediate duct is connected with the inner flow passage of the drill main body, the hydrophthalmia and the core of branch's rock bit
The intermediate duct of axis is connected.
2. a kind of pile legs of self-elevating drilling platform as described in claim 1 actively pierces through drilling target drill, which is characterized in that
The drill main body is the vertebral body structure with discoid bottom.
3. a kind of pile legs of self-elevating drilling platform as claimed in claim 1 or 2 actively pierces through drilling target drill, feature exists
In branch's rock bit uses the gear wheel of conventional Cone Bit Design；Alternatively, branch's rock bit uses band hydrodynamic(al)
The gear wheel of power design.
4. a kind of pile legs of self-elevating drilling platform as claimed in claim 1 or 2 actively pierces through drilling target drill, feature exists
In installing various forms of branch's rock bit on the difference mandrels of, the drill main body bottom, forms " 1+N " formula and bore
Head.
5. a kind of pile legs of self-elevating drilling platform as claimed in claim 3 actively pierces through drilling target drill, which is characterized in that
Various forms of branch's rock bit are installed on the difference mandrel of the drill main body bottom, form " 1+N " formula drill bit.
6. a kind of pile legs of self-elevating drilling platform as described in claims 1 or 2 or 5 actively pierces through drilling target drill, special
Sign is that the drill main body and branch's rock bit are all made of steel body foundry engieering and are process.
7. a kind of pile legs of self-elevating drilling platform as claimed in claim 3 actively pierces through drilling target drill, which is characterized in that
The drill main body and branch's rock bit are all made of steel body foundry engieering and are process.
8. a kind of pile legs of self-elevating drilling platform as claimed in claim 4 actively pierces through drilling target drill, which is characterized in that
The drill main body and branch's rock bit are all made of steel body foundry engieering and are process.
9. a kind of pile legs of self-elevating drilling platform actively pierces through boring method, comprising the following steps:
1) drilling special jewel will actively be pierced through such as above-mentioned pile legs of self-elevating drilling platform described in any item of the claim 1 to 8
Head is installed to the drill string bottom of drilling machine, the inner flow passage and the drilling well mud in drilling circulation system of drill main body by male joint
Stock pump is connected；
2) it controlling and is bored under drilling machine, seawater is pumped into drill main body by drill string by the drilling mud pump in drilling circulation system,
Then each branch's rock bit is branched to by the inner flow passage of drill main body, and from the hydrophthalmia of branch's rock bit bottom
It goes out, forms water jet, hydraulic blow is formed to " egg shell " stratum；Cooperate each branch's rock bit rotation bring torque
The bit pressure provided is pushed with drill string, impact and shear action are generated to " egg shell " stratum, breaks " egg shell ", destroys the soil body
Globality；Meanwhile multiple branch's rock bit being installed on mandrel of the drill main body bottom in multiple spot distribution, boring under one time can break
" egg shell " hard stratum of bad larger area, single time drilling is capable of forming the drilling of larger diameter, to realize jack-up rigs
The bore operation that platform leg actively pierces through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257466.3A CN106988682B (en) | 2017-04-19 | 2017-04-19 | A kind of pile legs of self-elevating drilling platform actively pierces through drilling target drill and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257466.3A CN106988682B (en) | 2017-04-19 | 2017-04-19 | A kind of pile legs of self-elevating drilling platform actively pierces through drilling target drill and method |
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| Publication Number | Publication Date |
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| CN106988682A CN106988682A (en) | 2017-07-28 |
| CN106988682B true CN106988682B (en) | 2019-04-23 |
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| CN201710257466.3A Active CN106988682B (en) | 2017-04-19 | 2017-04-19 | A kind of pile legs of self-elevating drilling platform actively pierces through drilling target drill and method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886577B (en) * | 2019-11-29 | 2021-06-04 | 深圳宏业基岩土科技股份有限公司 | Construction method for perpendicularity control of rotary excavating hard secant pile in deep and thick rockfill area |
| CN112267460B (en) * | 2020-09-03 | 2021-12-17 | 中海油能源发展股份有限公司 | Active puncturing pile shoe structure of self-elevating drilling platform and operation method thereof |
| CN112302009A (en) * | 2020-11-19 | 2021-02-02 | 中国石油大学(北京) | Drilling platform pile shoe, drilling platform and pile inserting method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3075593A (en) * | 1959-11-18 | 1963-01-29 | Timken Roller Bearing Co | Drill bit |
| DE10328609B3 (en) * | 2003-06-25 | 2004-12-02 | Bauer Maschinen Gmbh | Wet-drilling tool for drilling a hole in the ground comprises a passage device having a tubular dome with an inlet opening above a collecting container and a connecting rod connection for a boring rod |
| CN106245626A (en) * | 2016-08-15 | 2016-12-21 | 中建三局基础设施工程有限公司 | A kind of hard formation churning driven enters method |
| CN106320986B (en) * | 2016-10-08 | 2018-07-10 | 郑州神利达钻采设备有限公司 | A kind of accurate Drilling bore bit of anti-deviation |
| CN107687320B (en) * | 2017-09-15 | 2024-02-09 | 湖南新金刚工程机械有限公司 | Cluster type down-the-hole hammer |
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