CN109812229A - The device and method of straight well is formed in sea-bottom shallow injection casing using vibratory drilling method - Google Patents
The device and method of straight well is formed in sea-bottom shallow injection casing using vibratory drilling method Download PDFInfo
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- CN109812229A CN109812229A CN201910148674.9A CN201910148674A CN109812229A CN 109812229 A CN109812229 A CN 109812229A CN 201910148674 A CN201910148674 A CN 201910148674A CN 109812229 A CN109812229 A CN 109812229A
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Abstract
The present invention provides a kind of device for forming straight well in sea-bottom shallow injection casing using vibratory drilling method, including damper, vibration excitor and clamper, vibration excitor includes waterproof box body, the first rotary shaft is equipped in waterproof box body, second rotary shaft, driving belt and motor, first rotary shaft one end is equipped with first gear, middle part is equipped with the first eccentric hammer, the other end is equipped with the first belt pulley, the second belt pulley is equipped with below first belt pulley, driving belt is sheathed on the first belt pulley and the second belt pulley, motor output shaft connects the second belt pulley, second rotary shaft one end is equipped with second gear identical with first gear, middle part is equipped with the second eccentric hammer, first rotary shaft and the second rotation axis horizontal are arranged in parallel and first gear and second gear engage, waterproof box body top connects damper, lower part connects clamper.Beneficial effects of the present invention: casing rapid-result straight well fastly is sunk to using vibratory drilling method, technique is simple, shortens construction period, saves human and material resources.
Description
Technical field
The present invention relates to shallow-layer hydrate exploitation technology fields more particularly to a kind of utilization vibratory drilling method in sea-bottom shallow injection
The device and method of casing formation straight well.
Background technique
Gas hydrates are distributed across in the permafrost of marine sediment or land-based area, are forced down by natural gas and water in height
The crystalline material of the class ice-like formed under the conditions of temperature.Its Resource Density is high, and distribution on global is extensive, has high resource value.
It is estimated that the gross energy of gas hydrates about coal, oil, 2-3 times of gas summation in the world, exploitation gas hydrates are for slow
The status of solution petroleum resources anxiety is of great significance.From the sixties in last century, with the U.S., Japan, Germany, China for representative
Country all worked out natural gas hydrate exploration developmental research plan, exploitation hydrate has become the emphasis and heat of various countries' research
Point, the following development and utilization to gas hydrates become inevitable trend.
The drilling well of ocean hydrate mainly passes through drilling ship or drilling platform at present, and drilling well is real in bottom sediment
It is existing.Exploitation of gas hydrates is similar to petroleum drilling engineering at method used in straight well mostly at present, and casing programme is complicated,
Wellhole is often made of the different well sections of multiple sizes, so that the tools such as the drilling rod of a variety of package sizes, drill bit, casing are needed,
It puts into larger.The shallow-layer hydrate exploitation shallower for buried depth, according to oil drilling method, complex procedures, wasting manpower and material resources.
By Japanese 2013 for the methane hydrate pilot production that Japan Sea carries out, bored recovery well is opened in hydrate overlying strata for three
Structure, casing diameter is respectively 762mm, 339.7mm, 244.5mm from top to bottom.Cheng Jing in this way needs to be equipped with each
The utensils such as drill bit, drilling rod, the casing of well section correspondingly-sized, if the shallow-layer hydrate for buried depth shallower (within 300m) is exploited,
This mode obviously wastes larger.
Summary of the invention
In view of this, forming straight well in sea-bottom shallow injection casing using vibratory drilling method the embodiment provides a kind of
Device.
The embodiment of the present invention provides a kind of device for forming straight well in sea-bottom shallow injection casing using vibratory drilling method, including
Damper, vibration excitor and clamper, the vibration excitor include waterproof box body, and the first rotary shaft, the are equipped in the waterproof box body
Two rotary shafts, driving belt and motor, first rotary shaft one end are equipped with first gear, and middle part is equipped with the first eccentric hammer, separately
One end is equipped with the first belt pulley, and the lower section of first belt pulley is equipped with the second belt pulley, and the driving belt is sheathed on described
On first belt pulley and second belt pulley, the second belt pulley described in the output axis connection of the motor, second rotation
Axis one end is equipped with second gear identical with the first gear, and middle part is equipped with the second eccentric hammer, first rotary shaft and institute
It states the second rotation axis horizontal to be arranged in parallel and the first gear and second gear engagement, waterproof box body top connection
The damper, lower part connect the clamper, and the clamper is used for grip sleeve, driving belt described in the motor driven
Transmission, drives the first gear to rotate with the second gear and keeps first eccentric hammer synchronous with second eccentric hammer
It rotates backward, to drive described sleeve pipe vertical vibrating.
Further, the clamper includes hydraulic cylinder and shell, and the shell upper end connects the waterproof box body, described
Equipped with cylinder rack gear and around three gripper jaws of the rack gear in shell, each gripper jaw upper end is fixedly connected with third tooth
Wheel, the third gear are rotatably fixed in the shell and engage with the rack gear, and the hydraulic cylinder upper end connects institute
Waterproof box body is stated, lower end connects the rack gear, and the hydraulic cylinder drives the rack gear to move downward when extending downwardly, each described
The rotation of third strength of gear unclamps described one gripper jaw, and the hydraulic cylinder drives the rack gear to transport upwards when retracting upwards
Dynamic, each third strength of gear rotation closes up described one gripper jaw.
Further, the hydraulic cylinder is set in the waterproof box body, and the hydraulic cylinder lower end is by the caisson
Body bottom surface, which leaks out, connects the rack gear.
Further, it is equipped with inclined gag lever post in the middle part of each gripper jaw, described gag lever post one end is fixed on described
On gripper jaw, for the other end towards the rack gear, what the gag lever post was used to limit the gripper jaw closes up amplitude.
Further, the damper includes hanged hook, top board, lower platen and hanging beam, and the hanged hook lower part connects
The top board is connect, the top board is set to above the lower platen, and is equipped between the top board and the lower platen
More vertical support rods, each support rod pass through a shock-absorbing spring, and the spring is by the top board and the pushing
Plate compresses, and the lower platen lower part connects the hanging beam, and the hanging beam connects the waterproof box body top.
Further, the hanging beam lower part is equipped with four connecting rods of rectangular arrangement, and four connecting rods are separately connected institute
State four apex angles on waterproof box body top.
Further, first eccentric hammer and second eccentric hammer are relatively arranged on the middle part of the waterproof box body.
Further, the motor is set to the bottom of the waterproof box body, the output axis connection drive rod of the motor,
The drive rod connects second belt pulley.
The embodiments of the present invention also provide it is a kind of using vibratory drilling method sea-bottom shallow injection casing formed straight well method,
Using the above-mentioned device for forming straight well in sea-bottom shallow injection casing using vibratory drilling method, and the following steps are included:
S1 uses the clamp holder clamping sleeve；
S2 transfers described device and the sleeve, makes the sleeve keep vertical and be directed at stratum and be intended into well location to set；
S3 starts the motor, first eccentric hammer and the second eccentric hammer synchronous backward rotation, and described first partially
The horizontal component of the centripetal force generated when heart hammer and second eccentric hammer rotation is cancelled out each other, and vertical component is overlapped mutually, from
And described sleeve pipe is driven to generate vertical motion, gradually sink；
The described sleeve pipe that S4 waits for sinks to stratum completely, and the clamper unclamps described sleeve pipe, hangs out described device, described sleeve pipe
Form wellhole, Cheng Jing.
The technical solution that the embodiment of the present invention provides has the benefit that utilization vibratory drilling method of the invention in seabed
Shallow-layer injection casing forms the device of straight well, clamp holder clamping casing, and vibration excitor applies the vibration force of vertical direction, benefit to casing
Reduce bearing capacity and the frictional force of soil with methods of sand liquefaction principle to achieve the purpose that sink to casing, in loosely organized hydration
Fast short-term training straight well, avoids complicated casing programme in object reservoir overlying strata, meets the exploitation of shallow-layer hydrate and makes straight well demand, device
Lamps structure composition is simple, and construction technology simple and convenient can shorten construction period, save human and material resources.
Detailed description of the invention
Fig. 1 is the schematic diagram that the present invention forms the device of straight well using vibratory drilling method in sea-bottom shallow injection casing；
Fig. 2 is the main view of damper 1 in Fig. 1；
Fig. 3 is the left view of damper 1 in Fig. 1；
Fig. 4 is the schematic diagram of vibration excitor 2 in Fig. 1；
Fig. 5 be in Fig. 4 vibration excitor 2 along AA, cross-sectional view；
Fig. 6 is the schematic diagram of clamper 3 in Fig. 1.
In figure: 1- damper, 101- hanged hook, 102- bolt, 103- socket, 104- top board, 105- shock-absorbing spring,
106- support rod, 107- lower platen, 108- hanging beam, 109- connecting rod, 2- vibration excitor, 201- waterproof box body, 202- first rotate
Axis, the second rotary shaft of 203-, 204- motor, 205- driving belt, 206- first gear, the first eccentric hammer of 207-, 208- first
Belt pulley, the second belt pulley of 209-, 210- drive rod, 211- second gear, the second eccentric hammer of 212-, 3- clamper, 301- liquid
Cylinder pressure, 302- shell, 303- rack gear, 304- gripper jaw, 305- third gear, 306- gag lever post.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Referring to FIG. 1, being formed directly using vibratory drilling method in sea-bottom shallow injection casing the embodiment provides a kind of
The device of well, including damper 1, vibration excitor 2 and clamper 3.
Fig. 2 and Fig. 3 are please referred to, the damper 1 includes hanged hook 101, top board 104, lower platen 107 and hanging beam
108, the hanged hook 101 is inverted U-shape hook, and for lifting by crane whole device, 104 top of top board is equipped with two sockets
103,101 both ends of hanged hook pass through bolt 102 respectively and connect two sockets 103, and the top board 104 is set to institute
107 top of lower platen is stated, and is equipped with more vertical support rods 106 between the top board 104 and the lower platen 107, often
One 106 upper end of support rod connects the top board 104, and lower end connects the lower platen 107, and passes through a shock-absorbing spring
105, the shock-absorbing spring 105 is compressed by the top board 104 and the lower platen 107, and 107 bottom of lower platen, which is equipped with, to be connected
Joint chair, 108 top of hanging beam are equipped with link slot, and the attachment base is inserted into the link slot and with lock clasp, described
108 lower part of hanging beam is equipped with four connecting rods 109 of rectangular arrangement.
Fig. 4 and Fig. 5 are please referred to, the vibration excitor 2 includes waterproof box body 201, and four connecting rods 109 are separately connected described anti-
Four apex angles on 201 top of water tank, the waterproof box body 201 is interior to be equipped with the first rotary shaft 202, the second rotary shaft 203, transmission skin
Band 205 and motor 204, described first rotary shaft, 202 one end are equipped with first gear 206, and middle part is equipped with the first eccentric hammer 207, separately
One end is equipped with the first belt pulley 208, and the lower section of first belt pulley 208 is equipped with the second belt pulley 209, the driving belt
205 are sheathed on first belt pulley 208 and second belt pulley 209, and the motor 204 is set to the waterproof box body
201 bottom, the output axis connection drive rod 210 of the motor 204, the drive rod 210 connect second belt pulley
209, described second rotary shaft, 203 one end is equipped with second gear 211 identical with the first gear 206, and middle part is equipped with second
Eccentric hammer 212, second eccentric hammer 212 and first eccentric hammer 207 are identical, first rotary shaft 202 and described
The setting of two rotary shafts, 203 horizontal parallel and the first gear 206 and the engagement of the second gear 211, first eccentric hammer
207 and second eccentric hammer 212 be relatively arranged on the middle part of the waterproof box body 201.
Referring to FIG. 6, the clamper 3 includes hydraulic cylinder 301 and shell 302,302 upper end of the shell connection is described anti-
201 lower part of water tank, the shell 302 is interior equipped with cylinder rack gear 303 and around three gripper jaws 304 of the rack gear 303, described
Hydraulic cylinder 301 is set in the waterproof box body 201, and 301 lower end of the hydraulic cylinder is leaked out by 201 bottom surface of waterproof box body
The rack gear 303 is connected, each 304 upper end of gripper jaw is fixedly connected with third gear 305, and the third gear 305 can turn
Dynamic is fixed in the shell 302 and engages with the rack gear 303, and inclined limit is equipped in the middle part of each gripper jaw 304
Position bar 306, described 306 one end of gag lever post are fixed on the gripper jaw 304, and the other end is described hydraulic towards the rack gear 303
Cylinder 301 drives the rack gear 303 to move downward when extending downwardly, each 305 Forced rotation of third gear makes an institute
The release of gripper jaw 304 is stated, three gripper jaws 304 unclamp simultaneously at this time, and three gripper jaws 304 are moved to sleeve upper end, institute
Stating when hydraulic cylinder 301 retracts upwards drives the rack gear 303 to move upwards, and each 303 Forced rotation of third gear makes institute
It states a gripper jaw 304 to close up, three gripper jaws 304 close up the sleeve clamping, each gripper jaw 304 simultaneously
After holding the sleeve tightly, to prevent the sleeve stress is excessive from being grabbed bad, the gag lever post 306 resists the rack gear for limiting
That makes the gripper jaw 304 closes up amplitude.
The device for forming straight well in sea-bottom shallow injection casing using vibratory drilling method of the invention, the motor 204 rotate band
It moves second belt pulley 209 to rotate, and first belt pulley 208 is driven to by the driving belt 205, make described the
The rotation of one rotary shaft 202, and then it is driven the first gear 206 and the second gear 211, and make first eccentric hammer
207 and 212 synchronous backward of the second eccentric hammer rotation, 212 turns of first eccentric hammer 207 and second eccentric hammer at this time
The horizontal component of the centripetal force generated when dynamic is cancelled out each other, and vertical component is overlapped mutually, so that it is vertical to drive described sleeve pipe to generate
Vibration.
The embodiments of the present invention also provide it is a kind of using vibratory drilling method sea-bottom shallow injection casing formed straight well method,
Using the above-mentioned device for forming straight well in sea-bottom shallow injection casing using vibratory drilling method, and the following steps are included:
S1 uses 3 closing sleeve of clamper, and the hydraulic cylinder 301 extends downwardly, and three gripper jaws 304 unclamp,
Lifting described device makes three gripper jaws 304 surround the sleeve upper end, and the hydraulic cylinder 301 retracts upwards, three folders
It holds pawl 304 and simultaneously clamps on the sleeve；
S2 transfers described device and the sleeve, and lifting described device, which is transferred to seabed, makes the sleeve keep vertical and right
Quasi- stratum is intended into well location and sets；
S3 starts the motor 204, first eccentric hammer 207 and 212 synchronous backward of the second eccentric hammer rotation, institute
The horizontal component for stating the centripetal force generated when the first eccentric hammer 207 and second eccentric hammer 212 rotation is cancelled out each other, and vertical point
Power is overlapped mutually, so that described sleeve pipe be driven to generate vertical motion, is gradually sunk, and is the high-frequency vibration using casing here, is made
Casing week, the full water and soil body for covering tube bottom are vibrated impact, and since pore water pressure rises, effective stress reduces, sand is from admittedly
State is to the variation of liquid, and particle suspension is in water.Soil body load-bearing capacity drastically reduces at this time, and casing can be in injection soil layer.This
One method has the advantages that easy to operate, sinking sleeve is not rapid by force, in soft stratum for easy damaged casing, construction adaptability.Seabed
The most structure of sedimentary is more loose, and soil particle is relatively thin, water of satisfying, and is easier to that liquefaction phenomenon occurs under effect of vibration.
The described sleeve pipe that S4 waits for sinks to stratum completely, and the hydraulic cylinder 301 extends downwardly, and three gripper jaws 304 unclamp institute
Casing is stated, described device is hung out, described sleeve pipe forms wellhole, Cheng Jing.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of device for forming straight well in sea-bottom shallow injection casing using vibratory drilling method, it is characterised in that: including damper, swash
Shake device and clamper, the vibration excitor includes waterproof box body, be equipped in the waterproof box body the first rotary shaft, the second rotary shaft,
Driving belt and motor, first rotary shaft one end are equipped with first gear, and middle part is equipped with the first eccentric hammer, and the other end is equipped with the
The lower section of one belt pulley, first belt pulley is equipped with the second belt pulley, and the driving belt is sheathed on first belt pulley
On second belt pulley, the second belt pulley described in the output axis connection of the motor, second rotary shaft one end is equipped with
Second gear identical with the first gear, middle part are equipped with the second eccentric hammer, first rotary shaft and second rotation
The setting of axis horizontal parallel and the first gear and second gear engagement, the waterproof box body top connect the vibration damping
Device, lower part connect the clamper, and the clamper is used for grip sleeve, the transmission of driving belt described in the motor driven, band
It moves the first gear and the second gear rotates and make first eccentric hammer and the second eccentric hammer synchronous backward to turn
It is dynamic, to drive described sleeve pipe vertical vibrating.
2. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as described in claim 1, it is characterised in that:
The clamper includes hydraulic cylinder and shell, and the shell upper end connects the waterproof box body, is equipped with Cylinder Gear in the shell
Item and three gripper jaws for surrounding the rack gear, each gripper jaw upper end are fixedly connected with third gear, and the third gear can
Rotation is fixed in the shell and is engaged with the rack gear, and the hydraulic cylinder upper end connects the waterproof box body, and lower end connects
The rack gear is connect, the hydraulic cylinder drives the rack gear to move downward when extending downwardly, each third strength of gear rotation
Unclamp described one gripper jaw, the hydraulic cylinder drives the rack gear to move upwards when retracting upwards, each third
Strength of gear rotation closes up described one gripper jaw.
3. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as claimed in claim 2, it is characterised in that:
The hydraulic cylinder is set in the waterproof box body, and the hydraulic cylinder lower end is leaked out described in connection as the waterproof box body bottom surface
Rack gear.
4. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as claimed in claim 2, it is characterised in that:
It is equipped with inclined gag lever post in the middle part of each gripper jaw, described gag lever post one end is fixed on the gripper jaw, other end court
To the rack gear, what the gag lever post was used to limit the gripper jaw closes up amplitude.
5. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as described in claim 1, it is characterised in that:
The damper includes hanged hook, top board, lower platen and hanging beam, and the hanged hook lower part connects the top board, described
Top board is set to above the lower platen, and more vertical support rods are equipped between the top board and the lower platen,
Each support rod passes through a shock-absorbing spring, and the spring is compressed by the top board and the lower platen, the lower platen
Lower part connects the hanging beam, and the hanging beam connects the waterproof box body top.
6. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as claimed in claim 5, it is characterised in that:
The hanging beam lower part is equipped with four connecting rods of rectangular arrangement, and four connecting rods are separately connected the four of the waterproof box body top
Apex angle.
7. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as described in claim 1, it is characterised in that:
First eccentric hammer and second eccentric hammer are relatively arranged on the middle part of the waterproof box body.
8. forming the device of straight well in sea-bottom shallow injection casing using vibratory drilling method as described in claim 1, it is characterised in that:
The motor is set to the bottom of the waterproof box body, the output axis connection drive rod of the motor, and the drive rod connects institute
State the second belt pulley.
9. a kind of method for forming straight well in sea-bottom shallow injection casing using vibratory drilling method, it is characterised in that: wanted using such as right
Described in asking 1 with vibratory drilling method sea-bottom shallow injection casing formed straight well device, and the following steps are included:
S1 uses the clamp holder clamping sleeve；
S2 transfers described device and the sleeve, makes the sleeve keep vertical and be directed at stratum and be intended into well location to set；
S3 starts the motor, first eccentric hammer and the second eccentric hammer synchronous backward rotation, first eccentric hammer
It cancels out each other with the horizontal component of the centripetal force generated when second eccentric hammer rotation, vertical component is overlapped mutually, thus band
Dynamic described sleeve pipe generates vertical motion, gradually sinks；
The described sleeve pipe that S4 waits for sinks to stratum completely, and the clamper unclamps described sleeve pipe, hangs out described device, described sleeve pipe is formed
Wellhole, Cheng Jing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148674.9A CN109812229A (en) | 2019-02-28 | 2019-02-28 | The device and method of straight well is formed in sea-bottom shallow injection casing using vibratory drilling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148674.9A CN109812229A (en) | 2019-02-28 | 2019-02-28 | The device and method of straight well is formed in sea-bottom shallow injection casing using vibratory drilling method |
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| CN109812229A true CN109812229A (en) | 2019-05-28 |
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| CN201910148674.9A Pending CN109812229A (en) | 2019-02-28 | 2019-02-28 | The device and method of straight well is formed in sea-bottom shallow injection casing using vibratory drilling method |
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Cited By (4)
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| CN112343557A (en) * | 2020-12-18 | 2021-02-09 | 福州大学 | Sea area natural gas hydrate self-entry type exploitation device and exploitation method |
| CN112360401A (en) * | 2020-12-18 | 2021-02-12 | 福州大学 | Sea area natural gas hydrate self-entering type exploitation simulation test device and test method thereof |
| CN114934746A (en) * | 2022-06-20 | 2022-08-23 | 中国农业大学 | Vibration surface layer conduit fixing tool behind surface layer conduit under injection method and test device thereof |
| CN115126409A (en) * | 2022-08-30 | 2022-09-30 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Monitoring well construction process and direct-pushing well forming tool thereof |
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