CN205858263U - Formula squeezing leak stoppage device is sent in a kind of down-hole - Google Patents
Formula squeezing leak stoppage device is sent in a kind of down-hole Download PDFInfo
- Publication number
- CN205858263U CN205858263U CN201620356325.8U CN201620356325U CN205858263U CN 205858263 U CN205858263 U CN 205858263U CN 201620356325 U CN201620356325 U CN 201620356325U CN 205858263 U CN205858263 U CN 205858263U
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- squeezing
- leak stoppage
- pipe
- drilling rod
- stoppage device
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Abstract
Formula squeezing leak stoppage device is sent in a kind of down-hole, including squeezing pipe device, drilling rod, squeezing piston apparatus and driving means.Driving means includes drive sub and driving dish, being shaped to and driving dish tabling of drive sub, driving dish is arranged on the upper end of squeezing pipe device, the upper end of squeezing piston apparatus is connected with one end of drilling rod, drive sub is arranged on drilling rod away from squeezing piston apparatus one end, squeezing piston apparatus, drilling rod are arranged on inside squeezing pipe device through driving dish, and squeezing piston apparatus, the position of drilling rod are suitable to drive sub and driving dish tabling.The squeezing leak stoppage device that this utility model provides has squeezing and pouring functions and according to leakage type, different loss circulation materials can be the most effectively transported to absorption well fragment position.
Description
Technical field
This utility model relates to drilling tool technical field, and formula squeezing leak stoppage device is sent in particularly a kind of down-hole.
Background technology
During the mineral resources exploration such as oil, natural gas exploitation drilling engineering, because of formation void or crack mistake
Degree is grown and is produced the phenomenon of serious drilling fluid leakage also known as " leakage ", especially loses the severe well leakage fault of the type that returns, to stone
The aspects such as oil, natural gas resource, downhole safety, flooring-safe environmental protection, engineering cost cause direct or indirect harm.Leakage
The processing method of fault is referred to as " leak stopping " Technology, and at present, ground is mainly configured by leak-stopping technique by ground injection pump group
Good, mix relatively small particle size solid bridging material, the leak stopping serosity of chemistry rapid hardening colloid (such as cement, waterglass etc.) injects leakage
Lose well section and block leakage crack.But, pumping equipment can not pump high concentration, large scale (particle diameter, length), rigid
(bridge formation) loss circulation material.And the leak stopping liquid of small particle, low concentration is limited to large scale crack shut-off capacity, and through long-distance
Conveying can occur concentration to replace, and the loss circulation material concentration being actually reached absorption well fragment position can reduce, thus causes plugging effect
Difference, success rate are low.
Prior art such as Chinese patent CN2732989Y discloses a kind of oil field well bypass valve type loss circulation material and sends into work
Tool, it includes that drilling rod and be arranged at the device for plugging of drilling rod lower end, device for plugging include cylindrical circular bidirectional joint, two-way connects
Head two ends up and down jointed rod and sleeve pipe respectively, the center being provided with the hollow matched with bidirectional joint inner chamber in bidirectional joint is sliding
Bar, is provided with shearing device between center slide bar and bidirectional joint, be provided with and close the upper stifled of bidirectional joint inner chamber below the slide bar of center
Head, the bidirectional joint sidewall of slide bar side, center is communicated with the passage of cannula cavity, between center slide bar and upper plug head
The sidewall of bidirectional joint is provided with through hole；Its lower end connects cylindrical circular lower contact, is provided with and lower contact in lower contact
The lower end cap that inner chamber matches, is provided with down cut pin between lower end cap and lower contact.
Above-mentioned instrument has the disadvantage that one, and tool availability is poor, in Practical Project implementation process, and top drilling well
Stiction that pressure possibly cannot overcome loss circulation material and casing wall that what liquid was limited push and the bottom plug pin that adds
Cannot check on ground after shearing resistance, and loss circulation material filling, verify reliability, easily causing cannot after delivering to absorption well section
Open lower end cap thus cause sending into unsuccessfully；Its two, this instrument is poor for applicability, and loss circulation material is single, applies the most extensive.
Utility model content
Technical problem to be solved in the utility model is in prior art precisely and to be had by multiple loss circulation material
Effect it is sent to the technical problem of absorption well section, and provides one and there is squeezing and pouring functions and (can permeate according to leakage type
Type, crack type, Caves etc.) different loss circulation materials is the most effectively transported to the leak stoppage tool of absorption well fragment position.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is as follows:
Formula squeezing leak stoppage device is sent in a kind of down-hole, including squeezing pipe device, drilling rod, squeezing piston apparatus and driving means,
Described driving means includes drive sub and driving dish, being shaped to and described driving dish tabling, institute of described drive sub
Stating driving dish and be arranged on the upper end of described squeezing pipe device, the upper end of described squeezing piston apparatus connects with one end of described drilling rod
Connecing, described drive sub is arranged on described drilling rod away from described squeezing piston apparatus one end, described squeezing piston apparatus, described brill
Bar is arranged on inside described squeezing pipe device through described driving dish, and described squeezing piston apparatus, the position of described drilling rod are suitable to
Described drive sub and described driving dish tabling.
In above-mentioned squeezing leak stoppage device, described squeezing piston apparatus includes playpipe, squeezing piston and check valve, described unidirectional
One end of valve is connected with described drilling rod, and the other end of described check valve is connected with described squeezing piston, described squeezing piston and institute
State playpipe to connect.
In above-mentioned squeezing leak stoppage device, described squeezing pipe device includes slot squeezing pipe, squeezing pipe box cupling and feed bin, described in cut
Seam squeezing pipe one end is connected with described driving dish by described squeezing pipe box cupling, and described feed bin is positioned at described slot squeezing pipe
Portion.
In above-mentioned squeezing leak stoppage device, the outside of described squeezing piston being provided with sealing ring, the quantity of described sealing ring is extremely
It is one less.
In above-mentioned squeezing leak stoppage device, described playpipe tube wall is provided with multiple spray-hole for jet drilling liquid, described
Spray-hole is uniformly distributed.
In above-mentioned squeezing leak stoppage device, described slot squeezing pipe is provided with the latasuture that can be extruded by loss circulation material, described
The quantity of latasuture is at least one.
In above-mentioned squeezing leak stoppage device, under described playpipe, tangent plane is oblique section.
In above-mentioned squeezing leak stoppage device, the bottom of described slot squeezing pipe is taper.
In above-mentioned squeezing leak stoppage device, the quantity of described latasuture is three.
In above-mentioned squeezing leak stoppage device, the quantity of described sealing ring is two.
Technique scheme of the present utility model has the advantage that compared to existing technology
Squeezing leak stoppage device the most of the present utility model, including squeezing pipe device, drilling rod, squeezing piston apparatus and driving means,
Driving means includes drive sub and driving dish, and being shaped to and driving dish tabling of drive sub, driving dish is arranged on crowded
The upper end of note pipe device, the upper end of squeezing piston apparatus is connected with one end of drilling rod, and drive sub is arranged on drilling rod away from squeezing
Piston apparatus one end, squeezing piston apparatus, drilling rod are arranged on inside squeezing pipe device through driving dish, squeeze piston apparatus, brill
The position of bar is suitable to drive sub and driving dish tabling.Such design, it is to avoid as tool loading in background technology blocks up
The subproblem of leakage material, such as, its sleeve pipe is typically at about 10m, built-in leak stopping organic material and pipe through soaking compacting
Wall can produce bigger stiction, and is provided with the lower end cap (aluminum matched with lower contact inner chamber in sleeve bottom lower contact
System), it is provided with down cut pin between lower end cap and lower contact, in Practical Project implementation process, limited the pushing away of top drilling fluid
Stiction that pressurization pressure (15-18MPa) possibly cannot overcome loss circulation material and casing wall and the bottom plug pin that adds
Cannot check after shearing resistance, and loss circulation material filling, verify reliability, easily cause and cannot open down after delivering to absorption well section
Plug causes sends into failed result.The setted structure operating procedure design of squeezing leak stoppage device of the present utility model has squeezing merit
And according to leakage type (such as osmosis type, crack type, Caves etc.), different loss circulation materials the most effectively can be carried
To the leak stoppage tool of absorption well fragment position, not only increase the feasibility in engineering construction and reliability, it is thus also avoided that can not
Many types of loss circulation material is sent into the critical defect that absorption well section exists.
Squeezing leak stoppage device the most of the present utility model, design can be by cream gel, certain diameter and length metal pin, silk
(bridging materials), cannot pass through the multiple loss circulation material such as large scale bridging material (long straw, the cotton seed hulls) conveying of ground pumping
To drop ply position, type leakage fault is returned in the pernicious mistake particularly with crack type, Caves, it is provided that a set of with strong points, full effective type
Material and Process configuration, thus improve the squeezing practicality of leak stoppage device and the suitability.
Note leak stoppage device the most of the present utility model, squeezing pipe device includes slot squeezing pipe, squeezing pipe box cupling and feed bin；Slot
Being provided with the latasuture that can be extruded by loss circulation material on squeezing pipe, the quantity of latasuture is at least one.The design of slot squeezing pipe
Can be rotated by slot squeezing tube side slat bar when driving means starts the most extruded loss circulation material uniformly squeezed
In leakage crack around well, it is achieved thereby that optimal plugging effect.
Squeezing leak stoppage device the most of the present utility model, is provided with sealing ring in the outside of squeezing piston, and the quantity of sealing ring is extremely
It is one less.Loss circulation material in feed bin all can be squeezed in the leakage of the borehole wall from slot squeezing tube side seam by such design
Lose in crack (crack), it is achieved thereby that optimal plugging effect.
Squeezing leak stoppage device the most of the present utility model, playpipe side is provided with multiple spray-hole for jet drilling liquid,
Spray-hole is uniformly distributed；Under playpipe, tangent plane is oblique section.Such design can make drilling fluid pass through the injection in playpipe
Hole carry out jet impact and bottom playpipe nib rotate dial sweep under effect, slot squeezing pipe in large scale bridge formation leak stopping
Material is clamp-oned in leakage crack in latasuture, is formed and piles up bridge joint, blocks big crack, thus improves squeezing leak stoppage device application
Popularity.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, it is embodied as below according to of the present utility model
Example also combines accompanying drawing, is described in further detail this utility model, wherein
Fig. 1 is the general assembly mechanism longitudinal profile structural map of squeezing leak stoppage device of the present utility model；
Fig. 2 is squeezing pipe device longitudinal profile structural map of the present utility model；
Fig. 3 is the horizontal section structural map of the slot squeezing pipe in squeezing pipe device of the present utility model；
Fig. 4 is the horizontal section structural map of the driving dish in squeezing pipe device of the present utility model；
Fig. 5 is squeezing piston apparatus longitudinal profile structural map of the present utility model；
Fig. 6 is the horizontal section structural map of the drive sub in squeezing piston apparatus of the present utility model；
Fig. 7 is the horizontal section structural map of the playpipe in squeezing piston apparatus of the present utility model.
In figure, reference is expressed as: 1-slot squeezing pipe, and 2-squeezes pipe box cupling, 3-driving dish, 4-playpipe, and 5-squeezes
Piston, 6-sealing ring, 7-check valve, 8-drilling rod, 9-drive sub, 10-feed bin.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing
Type embodiment is described in further detail.
As shown in figs. 1-7, it is the preferred embodiment squeezing piston apparatus involved by this utility model.Described squeezing leak stopping
Device, including squeezing pipe device, drilling rod 8, squeezing piston apparatus and driving means.
In the present embodiment, described driving means includes drive sub 9 and driving dish 3, and the shape of described drive sub 9 is fitted
In with described driving dish 3 tabling, described driving dish 3 is arranged on the upper end of described squeezing pipe device, described squeezing piston apparatus
Upper end be connected with one end of described drilling rod 8, described drive sub 9 is arranged on described drilling rod 8 away from described squeezing piston apparatus
One end, described squeezing piston apparatus, described drilling rod 8 are arranged on inside described squeezing pipe device through described driving dish 3, described crowded
Note piston apparatus, the position of described drilling rod 8 are suitable to described drive sub 9 and described driving dish 3 tabling.
Described squeezing piston apparatus includes playpipe 4, squeezing piston 5 and check valve 7, one end of described check valve 7 and institute
Stating the drilling rod 8 one end connection away from described drive sub 9, the other end of described check valve 7 is connected with described squeezing piston 5, institute
State squeezing piston 5 to be connected with described playpipe 4.Further, the outside of described squeezing piston 5 is provided with sealing ring 6, described
The quantity of sealing ring 6 is at least one.Further, the quantity of described sealing ring 6 is two.Further, described playpipe 4
Side is provided with multiple spray-hole for jet drilling liquid, and described spray-hole is uniformly distributed.Further, described playpipe 4
Lower tangent plane is oblique section.
Described squeezing pipe device includes slot squeezing pipe 1, squeezing pipe box cupling 2 and feed bin 10, the one of described slot squeezing pipe 1
End is connected with described driving dish 3 by described squeezing pipe box cupling 2 one end, and one end is connected with described slot squeezing pipe 1, described feed bin
10 are positioned at described slot squeezing pipe 1 inside.Further, described slot squeezing pipe 1 is provided with and can be extruded by loss circulation material
Latasuture, the quantity of described latasuture is at least one.Further, the quantity of described latasuture is three.Further, cut described in
The bottom of seam squeezing pipe 1 is taper.
Squeezing leak stoppage device and loss circulation material installation process are as follows:
In the described feed bin 10 that described slot squeezing pipe 1 is internal according to down-hole lithology and anticipation leakage fault type oneself
Top presses fit into gel potting (porcelain) clay；Or application diameter and the steel wire of length, pin；Or cannot pass through ground pumping
The loss circulation material of the type such as bridging material (bridging materials such as long straw, cotton seed hulls), then by described squeezing piston apparatus, institute
State check valve 7 and be fitted in loss circulation material top, connect described driving dish 3, described squeezing piston on described slot squeezing pipe 1 top
Device upper end is connected with the lower end of described drilling rod 8, and described drilling rod 8 top connects described drive sub 9 and is connected with entering well drilling tool, extremely
This described squeezing leak stoppage device and loss circulation material install additional complete.
Leakage type is that the operating process of high diafiltration mistake type or microfissure type leakage is as follows:
Loading gel potting (porcelain) clay in the described feed bin 10 within described slot squeezing pipe 1, kit is even
The portion that connects sends into enter to shaft bottom absorption well section under drilling tool, and described squeezing pipe device is seated in the shaft bottom of absorption well section, then described
Squeezing piston apparatus and the described drilling rod 8 that is connected with described squeezing piston apparatus are extruded the gel system in described squeezing pipe device
Pottery (porcelain) clay, extrudes from described slot squeezing pipe 1 latasuture, enters in borehole wall leakage crack or high osmosis hole, extremely
Described squeezing piston apparatus is transferred to described squeezing pipe bottom of device, described drive sub 9 and described driving dish 3 tabling, so
After start and turn clockwise into well casing post low speed, drive described slot to squeeze pipe 1, described slot squeezing pipe 1 latasuture wing bar rotates
The most extruded gel loss circulation material is uniformly squeezed in the leakage crack around well, reaches the final goal of closure.
Leakage type is that large scale crack or solution cavity lose that to return the operating process of type leakage as follows:
Conventional loss circulation material technique cannot pile up bridge joint at leakage crack at all, then load diameter at described feed bin 10
About 0.1mm, the large scale bridging materials such as the waste steel wire of length 3-5cm or the long straw of 3-5cm, cotton seed hulls, according to above-mentioned
Installing linker to be transferred by kit to shaft bottom absorption well section, described squeezing pipe device is located shaft bottom, then according to below
Step is implemented leak stopping and is operated: one, closes the ring shaped capping apparatus of well head in advance；Its two, start ground drilling pump group inject drilling well
Liquid；Its three, start into well casing post low speed rotation, the most slowly under put into well casing post, the most described squeezing piston apparatus is descending,
Drilling fluid jet impact and described playpipe 4 nib rotate and pull out under the effect of sweeping, the large scale bridge formation leak stopping material in described feed bin 10
Material is clamp-oned in leakage crack in described latasuture, is formed and piles up bridge joint, blocks big crack, and in the drilling fluid of circulation, fine grained blocks up
Leakage material finally blocks leakage channel, completes plugging operations, enables pit shaft ring Zhou Yanbi to undertake carrying drilling fluid column pressure, extensive
Multiple normal circulation of drilling fluid ability, thus realize normal drilling operability.
In other embodiments, the bottom of described slot squeezing pipe 1 can also be other shapes.
In other embodiments, the quantity of described latasuture can also be one, two or other quantity, and described latasuture also may be used
To be uniformly arranged according to demand or non-homogeneous setting.
In other embodiments, the quantity of described sealing ring 6 can also be one, three or other quantity.
In other embodiments, the bottom of described playpipe 4 can be taper or other shapes.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus amplified out or
Change among the protection domain still in this utility model creation.
Claims (10)
1. a formula squeezing leak stoppage device is sent in down-hole, including squeezing pipe device, drilling rod (8), squeezing piston apparatus and driving means,
It is characterized in that: described driving means includes drive sub (9) and driving dish (3), described drive sub (9) be shaped to
Described driving dish (3) tabling；Described driving dish (3) is arranged on the upper end of described squeezing pipe device, described squeezing piston apparatus
Upper end be connected with one end of described drilling rod (8), described drive sub (9) be arranged on described drilling rod (8) away from described squeezing live
Plug device one end；Described squeezing piston apparatus, described drilling rod (8) are arranged on described squeezing pipe device through described driving dish (3)
Inside, it is mutually embedding with described driving dish (3) that described squeezing piston apparatus, the position of described drilling rod (8) are suitable to described drive sub (9)
Close.
Squeezing leak stoppage device the most according to claim 1, it is characterised in that: described squeezing piston apparatus include playpipe (4),
Squeezing piston (5) and check valve (7), one end of described check valve (7) and described drilling rod (8) are away from described drive sub (9)
One end connects, and the other end of described check valve (7) is connected with described squeezing piston (5), described squeezing piston (5) and described injection
Pipe (4) connects.
Squeezing leak stoppage device the most according to claim 2, it is characterised in that: described squeezing pipe device includes slot squeezing pipe
(1), squeezing pipe box cupling (2) and feed bin (10), one end of described slot squeezing pipe (1) is by described squeezing pipe box cupling (2) and institute
Stating driving dish (3) to connect, it is internal that described feed bin (10) is positioned at described slot squeezing pipe (1).
Squeezing leak stoppage device the most according to claim 3, it is characterised in that: it is provided with in the outside of described squeezing piston (5)
Sealing ring (6), the quantity of described sealing ring (6) is at least one.
Squeezing leak stoppage device the most according to claim 4, it is characterised in that: described playpipe (4) tube wall is provided with multiple use
Carrying out the spray-hole of jet drilling liquid, described spray-hole is uniformly distributed.
Squeezing leak stoppage device the most according to claim 5, it is characterised in that: it is provided with permissible on described slot squeezing pipe (1)
The latasuture extruded by loss circulation material, the quantity of described latasuture is at least one.
Squeezing leak stoppage device the most according to claim 6, it is characterised in that: under described playpipe (4), tangent plane is oblique section.
Squeezing leak stoppage device the most according to claim 7, it is characterised in that: the bottom of described slot squeezing pipe (1) is taper.
Squeezing leak stoppage device the most according to claim 8, it is characterised in that: the quantity of described latasuture is three.
Squeezing leak stoppage device the most according to claim 9, it is characterised in that: the quantity of described sealing ring (6) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620356325.8U CN205858263U (en) | 2016-04-25 | 2016-04-25 | Formula squeezing leak stoppage device is sent in a kind of down-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620356325.8U CN205858263U (en) | 2016-04-25 | 2016-04-25 | Formula squeezing leak stoppage device is sent in a kind of down-hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858263U true CN205858263U (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620356325.8U Expired - Fee Related CN205858263U (en) | 2016-04-25 | 2016-04-25 | Formula squeezing leak stoppage device is sent in a kind of down-hole |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185412A (en) * | 2019-05-24 | 2019-08-30 | 中国石油大学(北京) | Underground device for plugging |
| CN111287690A (en) * | 2020-04-05 | 2020-06-16 | 新疆正通石油天然气股份有限公司 | Method for injecting ash into open hole stratum of well drilling |
| CN113107441A (en) * | 2021-05-12 | 2021-07-13 | 大庆辰平钻井技术服务有限公司 | Drainage-assisting and energy-increasing effect-improving method for open hole oil layer of ultra-short radius horizontal well |
-
2016
- 2016-04-25 CN CN201620356325.8U patent/CN205858263U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185412A (en) * | 2019-05-24 | 2019-08-30 | 中国石油大学(北京) | Underground device for plugging |
| CN111287690A (en) * | 2020-04-05 | 2020-06-16 | 新疆正通石油天然气股份有限公司 | Method for injecting ash into open hole stratum of well drilling |
| CN113107441A (en) * | 2021-05-12 | 2021-07-13 | 大庆辰平钻井技术服务有限公司 | Drainage-assisting and energy-increasing effect-improving method for open hole oil layer of ultra-short radius horizontal well |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20190425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |