CN110295860A - The well head cleaning device of deep water jet drilling - Google Patents
The well head cleaning device of deep water jet drilling Download PDFInfo
- Publication number
- CN110295860A CN110295860A CN201910643794.6A CN201910643794A CN110295860A CN 110295860 A CN110295860 A CN 110295860A CN 201910643794 A CN201910643794 A CN 201910643794A CN 110295860 A CN110295860 A CN 110295860A
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- Prior art keywords
- impeller
- well head
- pedestal
- deep water
- water jet
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- 238000005553 drilling Methods 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000004140 cleaning Methods 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000004020 conductor Substances 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 11
- 239000003208 petroleum Substances 0.000 abstract description 3
- 210000004233 talus Anatomy 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 239000004615 ingredient Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 244000147058 Derris elliptica Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- UZVHFVZFNXBMQJ-UHFFFAOYSA-N butalbital Chemical compound CC(C)CC1(CC=C)C(=O)NC(=O)NC1=O UZVHFVZFNXBMQJ-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 kind of well head cleaning devices of deep water jet drilling, it is related to marine petroleum development, deepwater drilling engineering field, it include: the pedestal with axis, pedestal has through hole, have on the side wall of through hole so that the positioning region that pedestal is not rotated with surface conductor pipe, the upper end of pedestal has the first extension, and the circumferential direction of the lower end of pedestal has the second extension；Impeller mechanism, impeller mechanism include: the impeller being arranged on the base, and first gear is connected on the inner wall of impeller, have cavity between the inner wall and pedestal of impeller, and the surface of impeller towards the side of the first extension is provided with blade；The mode of being connected by a hinge is connected to the Sao Xie mechanism on impeller side wall；Motor in the cavities is set, second gear is provided on the axis of motor, second gear is mutually sequentially connected with first gear.The application can spud in the first time of deep water jet drilling, avoid the talus deposit generated in drilling process around well head in the drilling process that spuds in for the second time.
Description
Technical field
The present invention relates to marine petroleum development, deepwater drilling engineering field, in particular to a kind of well of deep water jet drilling
Mouth cleaning device.
Background technique
Marine energy development and utilization are the important measures safeguarded national marine equity and ensure national energy security, for slow
Solve the restriction of resource and environment, expand national economy and social development space etc. has very far-reaching strategic importance.Closely
Nian Lai, for the great oil and gas discovery in the whole world mostly mainly from profundal zone, deep water sea area is becoming the main growth of offshore oil
The key areas of point and World Oil Industry sustainable development.
As marine petroleum development is marched toward deep water sea area, conventional layer catheter method (piercing method) can not adapt to depth
The influence for the harm such as water sea area layer resistance of soil is low, fracture pressure gradient is low, sea bed is unstable, the borehole wall easily collapses.Injection
Method layer conduit then provides a kind of new mode of operation, using seawater injection drilling in the same of the protection marine eco-environment
When, also achieve the smooth tripping in of surface conductor pipe.Although can effectively overcome the difficulty of layer conduit using this kind of mode of operation
Topic, but in a large amount of landwaste that spuds in, can be generated in the drilling process that spuds in for the second time for the first time, landwaste returns outlet discharge from well head,
Then it will be deposited in around well head, cannot effectively be cleared up, can be adopted in this way to subsequent installation underwater well head and under water
Oil tree buries security risk.Therefore, need to develop a kind of well head cleaning device of deep water jet drilling, to solve well head debris cone
Long-pending problem.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide one kind for the embodiment of the present invention
The well head cleaning device of deep water jet drilling can spud in the first time of deep water jet drilling, spud in crept into for the second time
It avoids the talus deposit generated in drilling process around well head in journey, reduces to subsequent installation underwater well head and subsea production tree
Influence.
The specific technical solution of the embodiment of the present invention is:
A kind of well head cleaning device of deep water jet drilling, the well head cleaning device of the deep water jet drilling is for being arranged
On surface conductor pipe, the well head cleaning device of the deep water jet drilling includes:
Pedestal with axis, the pedestal have through hole in the axial direction, and having on the side wall of the through hole makes
The positioning region that the pedestal is not rotated with the surface conductor pipe is obtained, the circumferential direction of the upper end of the pedestal, which has, to be extended in a radial direction
The first extension, the circumferential direction of the lower end of the pedestal has the second extension extended in a radial direction；
Impeller mechanism, the impeller mechanism include: the impeller being set on the pedestal, and the impeller is located at described first
Between extension and second extension, first gear, the inner wall of the impeller and institute are connected on the inner wall of the impeller
Stating has cavity between pedestal, the surface of the impeller towards the side of first extension is provided with blade；Pass through hinge
Connection type is connected to the Sao Xie mechanism extended in a radial direction on the impeller side wall；
Motor in the cavity is set, second gear, the second gear and institute are provided on the axis of the motor
First gear is stated mutually to be sequentially connected.
Preferably, there is the groove that extends in the axial direction on the lateral wall of the surface conductor pipe, the positioning region be with
The lug boss extended in the axial direction that the groove matches.
Preferably, location hole is offered on the lateral wall of the surface conductor pipe, and there is aperture on the side wall of the through hole,
Pin is provided in the aperture, the pin can be embedded in the location hole, so that the pedestal and the surface conductor pipe
It is mutually fixed.
Preferably, the blade is multiple, is circumferentially distributed around axis, and the blade and the impeller are connected by welding
It connects or the blade and the impeller is integrated chemical conversion type.
Preferably, on the section being perpendicularly to the radial direction, the cross section of the blade is S-shaped.
Preferably, the Sao Xie mechanism is located at the lower edge of the impeller side wall.
Preferably, the motor is mutually fixedly connected with the pedestal.
Preferably, the cavity is sealing.
Technical solution of the present invention have it is following significant the utility model has the advantages that
The well head cleaning device of deep water jet drilling in the application, which is arranged, to be mounted on surface conductor pipe, is sprayed when in deep water
The first time of drilling well spuds in, in the drilling process that spuds in for the second time, and the well head cleaning device of deep water jet drilling is under surface conductor pipe
Enter, when surface duct carries out injection drilling tripping in, impeller rotates driven by the motor, so that the blade on impeller revolves
Turn, the landwaste being discharged from surface duct upper end opening is fallen in above impeller, and landwaste generates centrifugation under the action of impeller blade
Effect, and then throw away well head region.Part falls a small amount of landwaste around lower impeller and sweeps under the rotation of Sao Xie mechanism prolongs from second
Extending portion surface, the landwaste that Sao Xie mechanism will be close to well head region at the same time are directly swept from making it away from well head region.The deep water
The well head cleaning device of jet drilling can effectively clear up deep water injection drilling during generate or be deposited in it is big around well head
Landwaste is measured, to guarantee that subsequent installation underwater well head and the safety of subsea production tree work carry out, operating risk is effectively reduced, helps
In protecting the marine environment, increase economic benefit.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.For a kind of reality
The feature that the mode of applying is described and/or shown can be made in one or more other embodiments in a manner of same or similar
With, be combined with the feature in other embodiment, or substitution other embodiment in feature.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is the stereoscopic schematic diagram of the well head cleaning device of deep water jet drilling in the embodiment of the present invention；
Fig. 2 is that the well head cleaning device of deep water jet drilling in the embodiment of the present invention is set in facing on surface conductor pipe
Figure；
Fig. 3 is that the well head cleaning device of deep water jet drilling in the embodiment of the present invention is set in the section on surface conductor pipe
Figure；
Fig. 4 is the local perspective view of the well head cleaning device of deep water jet drilling in the embodiment of the present invention.
The appended drawing reference of the figures above:
1, pedestal；11, through hole；12, positioning region；13, the first extension；14, the second extension；15, aperture；16, it sells
Nail；2, impeller mechanism；21, impeller；22, first gear；23, cavity；24, blade；25, Sao Xie mechanism；251, first body of rod；
2511, first through hole；252, second body of rod；2521, the second through-hole；26, spring；3, motor；31, second gear；4, surface layer is led
Pipe；41, groove；42, location hole.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, details of the invention can clearly be understood.But
It is the specific embodiment of invention described herein, purpose for explaining only the invention, and cannot understand in any way
At being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention
Shape, these are regarded as belonging to the scope of the present invention.It should be noted that when element is referred to as " being set to " another yuan
Part, it can directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection "
Another element, it can be directly to another element or may be simultaneously present centering elements.Term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, are also possible to inside two elements
Connection, can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art,
The concrete meaning of above-mentioned term can be understood as the case may be.Term as used herein " vertical ", " horizontal ",
"upper", "lower", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
In order to spud in the first time of deep water jet drilling, avoided in drilling process in the drilling process that spuds in for the second time
The talus deposit of generation reduces the influence to subsequent installation underwater well head and subsea production tree, in this application around well head
A kind of well head cleaning device of deep water jet drilling is proposed, the well head cleaning device of the deep water jet drilling is for being set in table
On layer conduit, Fig. 1 is the stereoscopic schematic diagram of the well head cleaning device of deep water jet drilling in the embodiment of the present invention, and Fig. 2 is this hair
The well head cleaning device of deep water jet drilling in bright embodiment is set in the front view on surface conductor pipe, and Fig. 3 is that the present invention is implemented
The well head cleaning device of deep water jet drilling is set in the sectional view on surface conductor pipe in example, and Fig. 4 is deep in the embodiment of the present invention
The local perspective view of the well head cleaning device of water injection drilling well, as shown in Figures 1 to 4, the well head of the deep water jet drilling clean
Device may include: the pedestal 1 with axis, and pedestal 1 has through hole 11 in the axial direction, has on the side wall of through hole 11
So that the positioning region 12 that pedestal 1 is not rotated with surface conductor pipe 4, the circumferential direction of the upper end of pedestal 1 has the extended in a radial direction
One extension 13, the circumferential direction of the lower end of pedestal 1 have the second extension 14 extended in a radial direction；Impeller mechanism 2, turbine
Structure 2 includes: the impeller 21 being set on pedestal 1, and impeller 21 is between the first extension 13 and the second extension 14, impeller 21
Inner wall on be connected with first gear 22, between the inner wall and pedestal 1 of impeller 21 have cavity 23, impeller 21 towards first extend
The surface of the side in portion 13 is provided with blade 24；The mode of being connected by a hinge is connected to radially prolonging on 21 side wall of impeller
The Sao Xie mechanism 25 stretched；Motor 3 in cavity 23 is set, is provided with second gear 31 on the axis of motor 3, second gear 31 with
The transmission connection of 22 phase of first gear.
The well head cleaning device of deep water jet drilling in the application, which is arranged, to be mounted on surface conductor pipe 4, is sprayed when in deep water
The first time for penetrating drilling well spuds in, in the drilling process that spuds in for the second time, and the well head cleaning device of deep water jet drilling is with surface conductor pipe 4
Tripping in, when surface duct carries out injection drilling tripping in, impeller 21 rotates under the drive of motor 3, so that on impeller 21
Blade 24 rotate, from surface duct upper end opening be discharged landwaste fall in above impeller 21, in the work of 21 blade 24 of impeller
Centrifugal action is generated with lower landwaste, and then throws away well head region.A small amount of landwaste that part is fallen around lower impeller 21 is sweeping bits machine
Structure 25 rotate under sweep from 14 surface of the second extension, the landwaste that Sao Xie mechanism 25 will be close to well head region at the same time directly sweep from
Make it away from well head region.The well head cleaning device of the deep water jet drilling produces during can effectively clearing up deep water injection drilling
A large amount of landwaste that are raw or being deposited in around well head, with guarantee the safety of subsequent installation underwater well head and subsea production tree work into
Row, is effectively reduced operating risk, helps to protect the marine environment, and increases economic benefit.
Well head cleaning device in order to the deep water jet drilling being better understood by the application, it will be done below into
One step explanation and illustration.As shown in figure 3, pedestal 1 has the axis extended along the vertical direction, pedestal 1 has in the axial direction to be passed through
Perforation 11, which is located at the middle part of pedestal 1, and for passing through for surface pipe, size and surface layer cover the through hole 11
Pipe matching.
As shown in figure 3, the circumferential direction of the upper end of pedestal 1 has the first extension 13 for extending in a radial direction, under pedestal 1
The circumferential direction at end has the second extension 14 extended in a radial direction.The radius of second extension 14 is greater than the first extension 13
Radius.For installing impeller mechanism 2 between first extension 13 and the second extension 14, the first extension 13 is for resisting impeller
The upper end of mechanism 2 limits the top of impeller mechanism 2；Second extension 14 is used to resist the lower end of impeller mechanism 2, right
The lower section of impeller mechanism 2 is limited.First extension 13 or the second extension 14 can be welded on pedestal 1, in this way, can be with
It is arranged convenient for the installation of impeller mechanism 2 into pedestal 1.
As shown in figures 1 and 3, have on the side wall of through hole 11 so that the positioning region that pedestal 1 is not rotated with surface conductor pipe 4
12, in this way, pedestal 1 can keep relatively fixed between surface conductor pipe 4 when motor 3 drives impeller mechanism 2 to be rotated.
In a kind of feasible embodiment, the groove 41 extended in the axial direction can have on the lateral wall of surface conductor pipe 4, position
Portion 12 is the lug boss extended in the axial direction to match with groove 41.When pedestal 1 is set on surface conductor pipe 4, run through
Groove 41 on the lateral wall of lug boss insertion surface conductor pipe 4 on the side wall in hole 11, so that pedestal 1 is not with surface conductor pipe
4 rotations, while pedestal 1 can slide on surface conductor pipe 4 in the axial direction.
In a kind of feasible embodiment, as shown in figure 3, offering location hole 42 on the lateral wall of surface conductor pipe 4, pass through
There is aperture 15 on the side wall of perforation 11, be provided with pin 16 in aperture 15, pin 16 can be embedded in location hole 42, so that base
Seat 1 is fixed with 4 phase of surface conductor pipe.The well head cleaning device of deep water jet drilling at least has two states, in the first state
Under, it is kept fixed between the pedestal 1 and surface conductor pipe 4 of the well head cleaning device of deep water jet drilling by pin 16；Second
Under kind state, pin 16 is cut off, and the well head cleaning device of deep water jet drilling can be slided in axis direction with surface conductor pipe 4
It is dynamic.
As shown in Figure 1 to Figure 3, impeller mechanism 2 may include: that impeller 21 and the mode of being connected by a hinge are connected to impeller
The Sao Xie mechanism 25 extended in a radial direction on 21 side walls.Wherein, impeller 21 is set on pedestal 1, and impeller 21 is located at first
Between extension 13 and the second extension 14.There is an annular cavity 23, the annular between the inner wall and pedestal 1 of impeller 21
The needs of cavity 23 be sealing, be isolated from the outside, so that water be avoided in deep water to enter wherein.
As shown in figure 4, being connected with first gear 22 on the inner wall of impeller 21, first gear 22 is distributed in 21 inner wall of impeller
In circumferential direction.Motor 3 is arranged in cavity 23, and second gear 31, second gear 31 and first gear 22 are provided on the axis of motor 3
Mutually it is sequentially connected.For example, second gear 31 is directly meshed with first gear 22.When motor 3 rotates, on motor 3 second
Gear 31 directly drives first gear 22 to rotate, since first gear 22 is arranged on 21 inner wall of impeller, in this way, driving impeller 21
It is rotated.It generates drive force first gear 22 for the ease of motor 3 to rotate, motor 3 needs and the fixed company of 1 phase of pedestal
It connects, in this way, being able to maintain motor 3 and pedestal 1 is relatively fixed when impeller 21 rotates.
As shown in figure 3, the surface of impeller 21 towards the side of the first extension 13 is outside highly gradually along radial direction
It reduces, the inclined-plane with certain angle.The surface of impeller 21 towards the side of the first extension 13 is provided with blade 24, blade 24
It can be circumferentially distributed around axis to be multiple, blade 24 and impeller 21 are by being welded to connect or blade 24 and impeller 21 are one
Body chemical conversion type.In a kind of feasible embodiment, in order to enable blade 24 can drive water to generate diameter under the rotation of impeller 21
To outside flowing, so that the landwaste to cause to fall and break generates centrifugal action, and then well head region is thrown away, what is be perpendicularly to the radial direction
On section, the cross section of blade 24 is S-shaped.
As shown in Figure 1 to Figure 3,25 mode of being connected by a hinge of Sao Xie mechanism is connected on 21 side wall of impeller, Sao Xie mechanism
25 generally radially direction extend outwardly.Most of landwaste being discharged from surface duct upper end opening can be in the effect of blade 24
Lower separate well head region, but a small amount of landwaste can still be fallen near well head or above the second extension 14, at this point, impeller 21
It is able to drive the rotation of Sao Xie mechanism 25 when rotation, under the rotation of Sao Xie mechanism 25,14 surface of the second extension can be cleaned out
Landwaste, the landwaste that Sao Xie mechanism 25 will be close to well head region at the same time directly sweeps from making it away from well head region.In order to mention
The effect that 14 surface of the second extension is cleared up for Sao Xie mechanism 25, preferably, Sao Xie mechanism 25 is located at 21 side wall of impeller
Lower edge.
The radius of the clast near well head cleaning device cleaning well head in order to change deep water jet drilling, into
And meet the requirement under different landwaste amounts, therefore, Sao Xie mechanism 25 needs radially to be able to carry out flexible.A kind of feasible
Embodiment in, Sao Xie mechanism 25 includes first body of rod 251, second body of rod 252, there is on first body of rod 251 sliding slot, second
The body of rod 252 is inserted into sliding slot and can slide in sliding slot, and first through hole 2511, second body of rod 252 are offered on first body of rod 251
On along glide direction offer multiple second through-holes 2521, be inserted into locking piece in first through hole 2511 and the second through-hole 2521 so that
First body of rod 251 is mutually fixed locked with second body of rod 252.It, will when needing to improve the radius of clast near cleaning well head
Second body of rod 252 extracts a distance, first through hole 2511 and second body of rod on first body of rod 251 out from first body of rod 251
252 a certain second through-hole 2521 is opposite, then locking piece is inserted into, so that first body of rod 251 is mutually consolidated with second body of rod 252
It is fixed.
In a preferred embodiment, Sao Xie mechanism 25 is connected by Hinge mechanism with impeller 21, to realize hinge
Chain link.As shown in Figure 1, between Sao Xie mechanism 25 and hinge have spring 26, Sao Xie mechanism 25 close to impeller 21 one end with
One end of spring 26 is connected, the other end of spring 26 be connected on Hinge mechanism or impeller 21 on so that Sao Xie mechanism
25 can swing back and forth under the action of spring 26.In the initial state, the outwardly directed degree of Sao Xie mechanism 25 is maximum, at this
In structure, if impeller 21 rotates, Sao Xie mechanism 25 encounters big landwaste, and resistance occur larger or when can not be cleared up away,
Under the action of spring 26 and landwaste resistance, Sao Xie mechanism 25 can occur to turn along the opposite direction that impeller 21 rotates for Sao Xie mechanism 25
Dynamic, outwardly directed degree reduces, that is, sweeps bits radius and reduce, the resistance of such Sao Xie mechanism 25 can become smaller or can lead to
It crosses at the bulk landwaste that can not be cleared up away.Later, under the active force of spring 26, Sao Xie mechanism 25 just can be along impeller 21
The direction of rotation rotates, and then restores to original state position, i.e., outwardly directed degree increases, that is, sweeps bits radius and increase.It is logical
Crossing the above process can guarantee that entire Sao Xie mechanism 25 is not in Sao Xie mechanism when encountering the big landwaste that can not be cleared up away
25 damages.
The well head cleaning device of deep water jet drilling in the application use process is as follows: it is rigid in use, deep water spray
The well head cleaning device for penetrating drilling well is set on surface conductor pipe 4, and the positioning region 12 on the side wall of 1 through hole 11 of pedestal can be
Lug boss is embedded in the groove 41 on the lateral wall of surface conductor pipe 4, to prevent the well head cleaning device of deep water jet drilling
Circumferential sliding is generated during 4 tripping in deep water of surface conductor pipe.The lower surface of second extension 14 of pedestal 1 can substantially with table
The bottom of layer conduit 4 is in a plane, is had on the location hole 42 of surface conductor pipe 4 and the side wall of 1 through hole 11 of pedestal
Aperture 15 in installation pin 16 to realize fixation between the two, to prevent the well head cleaning device of deep water jet drilling from existing
It generates and slides axially during 4 tripping in deep water of surface conductor pipe.
When spudding in operation for the first time, the well head cleaning device of deep water jet drilling is with 4 tripping in of surface conductor pipe, when its pedestal
When 1 lower surface touches mud face, since mud face stops that tripping in can not be continued, surface conductor pipe 4 then continues injection drilling tripping in mud face,
At this point, the pin 16 between fixed pedestal 1 and surface conductor pipe 4 is cut, so that surface conductor pipe 4 being capable of smooth tripping in.
From when starting injection drilling, impeller 21 just rotates under the driving of motor 3 inside it, and the blade 24 on impeller 21, which rotates, to be driven
Dynamic water generates radially outer flowing.The landwaste that injection drilling generates is discharged from the upper end opening of surface conductor pipe 4, and then falls downwards
It drops down near well head, including 21 top of impeller.Landwaste generates centrifugal action under the action of 21 blade 24 of impeller, so that should
Part landwaste throws away well head region.The Sao Xie mechanism 25 for being located at 21 lower edge of impeller simultaneously is first adjusted according to landwaste amount size to conjunction
Suitable extended length sweeps bits radius with regulating device, and auxiliary sweeps bits under the drive rotation of impeller 21, partially falls lower impeller
A small amount of landwaste around 21 is swept under the rotation of Sao Xie mechanism 25 from 14 surface of the second extension, and Sao Xie mechanism 25 will lean at the same time
The landwaste in nearly well head region is directly swept from making it away from well head region.
When spudding in operation for the second time, the well head cleaning device of deep water jet drilling is had been placed on mud face, and impeller 21 is in electricity
Held stationary rotates under the driving of machine 3, to persistently carry out sweeping bits operation, during the injection for operation of spudding in for the second time is crept into
The landwaste in the close well head region generated is swept from well head region.In operation of entirely spudding in for the first time, the spray of operation of spudding in for the second time
It penetrates in drilling process, the landwaste returned out falls in the impeller 21 close to well head region, on 24 surface of blade or close to pedestal 1 mostly
Around, under the action of the rotation of both blade 24 and Sao Xie mechanism 25, landwaste generates centrifugal movement, and then is thrown off bank
Domain.
The well head cleaning device of deep water jet drilling in the application generates during can effectively clearing up deep water injection drilling
The a large amount of landwaste that will be deposited in around well head, landwaste is swept near well head from, with guarantee it is subsequent at well head install water
Lower well head and the safety of subsea production tree work carry out, and operating risk is effectively reduced, protects the marine environment, increases economic benefit.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Describing combined term " substantially by ... constitute " should include identified element, ingredient, component or step and reality
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any
Attribute is all optional.Multiple element, ingredient, component or step can be mentioned by single integrated component, ingredient, component or step
For.Alternatively, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation
Suddenly.For describe the open "a" or "an" of element, ingredient, component or step do not say in order to exclude other elements, at
Point, component or step.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.Above-described embodiment is only
Illustrate technical concepts and features of the invention, its object is to those skilled in the art can understand the contents of the present invention
And implement accordingly, it is not intended to limit the scope of the present invention.Equivalence changes made by all Spirit Essences according to the present invention
Or modification, it should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of well head cleaning device of deep water jet drilling, the well head cleaning device of the deep water jet drilling is for being set in
On surface conductor pipe, which is characterized in that the well head cleaning device of the deep water jet drilling includes:
Pedestal with axis, the pedestal have through hole in the axial direction, have on the side wall of the through hole so that institute
State the positioning region that pedestal is not rotated with the surface conductor pipe, the circumferential direction of the upper end of the pedestal has the extended in a radial direction
One extension, the circumferential direction of the lower end of the pedestal have the second extension extended in a radial direction；
Impeller mechanism, the impeller mechanism include: the impeller being set on the pedestal, and the impeller is located at described first and extends
Between portion and second extension, first gear, the inner wall of the impeller and the base are connected on the inner wall of the impeller
There is cavity, the surface of the impeller towards the side of first extension is provided with blade between seat；It is connected by a hinge
Mode is connected to the Sao Xie mechanism extended in a radial direction on the impeller side wall；
Motor in the cavity is set, is provided with second gear on the axis of the motor, the second gear and described the
One gear is mutually sequentially connected.
2. the well head cleaning device of deep water jet drilling according to claim 1, which is characterized in that the surface conductor pipe
There is the groove extended in the axial direction, the positioning region is the extension in the axial direction to match with the groove on lateral wall
Lug boss.
3. the well head cleaning device of deep water jet drilling according to claim 1, which is characterized in that the surface conductor pipe
Location hole is offered on lateral wall, and there is aperture on the side wall of the through hole, be provided with pin, the pin in the aperture
It can be embedded in the location hole, so that the pedestal is mutually fixed with the surface conductor pipe.
4. the well head cleaning device of deep water jet drilling according to claim 1, which is characterized in that the blade is more
It is a, it is circumferentially distributed around axis, the blade is one by welded connecting or the blade and the impeller with the impeller
Body chemical conversion type.
5. the well head cleaning device of deep water jet drilling according to claim 4, which is characterized in that perpendicular to radial side
To section on, the cross section of the blade is S-shaped.
6. the well head cleaning device of deep water jet drilling according to claim 1, which is characterized in that Sao Xie mechanism position
In the lower edge of the impeller side wall.
7. the well head cleaning device of deep water jet drilling according to claim 1, which is characterized in that the motor with it is described
Pedestal is mutually fixedly connected.
8. the well head cleaning device of deep water jet drilling according to claim 1, which is characterized in that the cavity is sealing
's.
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| CN201910643794.6A CN110295860B (en) | 2019-07-17 | 2019-07-17 | Wellhead cleaning device for deep water jet drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910643794.6A CN110295860B (en) | 2019-07-17 | 2019-07-17 | Wellhead cleaning device for deep water jet drilling |
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| CN110295860B CN110295860B (en) | 2024-03-26 |
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Cited By (1)
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|---|---|---|---|---|
| CN113445947A (en) * | 2021-07-23 | 2021-09-28 | 北方爆破科技有限公司 | Rock debris cleaning device |
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| CN110295860B (en) | 2024-03-26 |
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