CN205858265U - A kind of down-hole leggy leak stopping syringe - Google Patents
A kind of down-hole leggy leak stopping syringe Download PDFInfo
- Publication number
- CN205858265U CN205858265U CN201620641877.3U CN201620641877U CN205858265U CN 205858265 U CN205858265 U CN 205858265U CN 201620641877 U CN201620641877 U CN 201620641877U CN 205858265 U CN205858265 U CN 205858265U
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- China
- Prior art keywords
- bore
- transmitting tube
- leak stopping
- hole
- leggy
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Abstract
This utility model relates to a kind of down-hole leggy leak stopping syringe, including transmitting tube, the center of transmitting tube is provided with axially extending bore, the lower end of transmitting tube connects elliposoidal target seeker, axial at least provided with twice bore group along transmitting tube, per pass bore group is provided with the bore that at least two radial symmetric are arranged, the inner of each bore is connected with axially extending bore respectively, each bore is separately installed with medicine box, ammunition chamber it is respectively equipped with between medicine box and bore, the outer end of medicine box is connected with injection tube, external end head and the sidewall of injection tube are respectively equipped with injection orifice, the outer wall of transmitting tube is embedded with multiple strong magnet.Being provided with centralizer between lower end and the elliposoidal target seeker of transmitting tube, the periphery of centralizer is provided with the centralizer guiding gutter that multiple tracks axially extends.The periphery of elliposoidal target seeker is provided with the target seeker guiding gutter that multiple tracks axially extends.The iron filings that this leak stopping syringe drops in pit shaft after can reclaiming blast leak stopping, prevent the damage in advance of injection tube, and lower well resistance are little.
Description
Technical field
This utility model relates to a kind of down-hole leggy leak stopping syringe, belongs to petroleum drilling technology field.
Background technology
Leakage often occurs in drilling process, and slight leakage can make drilling well operating interruptions, serious leakage delay greatly
The production time of amount, expend substantial amounts of man power and material.As leakage can not get processing in time, well slough, blowout and card also can be caused
Brill accident, causes scrapping, so process leakage in time recovering normally to creep into is very important work of part well section or full well section
Make.In well cementing process, some well sections can not bear the head of liquid of cement mortar, also can produce leakage, cause cementing the well unsuccessfully, this
In the case of Zhong, it is necessary to the well section that pressure-bearing is relatively low is reinforced.
Notification number is that the Chinese invention patent of 102121361B discloses a kind of multi-phase underground injector, is a kind of permissible
Blocking Underwell leakage, the all-purpose instrument of Reinforcing Shaft.Offer axially extending bore at the center of transmitting tube, connect in one end of transmitting tube
Ellipsoid shape target seeker, the length direction along transmitting tube is arranged at least two group bore, is often organized bore and be provided with at least two radial symmetric
The bore arranged, the inner of each bore connects with described axially extending bore respectively, arranges injection tube by base in each bore,
Ammunition chamber is set between described base and bore.This inventive structure is simple, convenient operation, by injecting in glue closure stratum
Leakage channel, applies extruding to rock and shearing force makes crack be reduced or eliminated, and Gu Bi is rapid and effective, effective, can be effective
Prevent the generation of leakage accident, ensure downhole safety.
There is following weak point in existing multi-phase underground injector: 1. after implementing well shooting leak stopping, exists indivedual
Injection tube does not enters into the borehole wall under explosive forces effect and syringe mount drops in pit shaft, causes follow-up well construction machine
Tool drilling speed reduces, and bit wear may cause the down-hole accidents such as bit freezing time serious.2. multi-phase underground injector is being lowered into finger
Before location is put, transmitting tube is easily close to the borehole wall, causes the damage in advance of injection tube, affects plugging effect.3. transmitting tube lower end is ellipse
Circular target seeker uses monolithic construction design, does not design flow path groove, and the drilling fluid of lower section is difficult to cross target seeker, target seeker
Easily it is hampered during descending, causes and enter difficulty under multi-phase underground injector.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, it is provided that a kind of down-hole leggy leak stopping
Syringe, the iron filings dropping in pit shaft after can reclaiming blast leak stopping, improve the safety of subsequent well.
For solving above technical problem, a kind of down-hole of the present utility model leggy leak stopping syringe, including transmitting tube, institute
The center stating transmitting tube is provided with axially extending bore, and the lower end of described transmitting tube connects has elliposoidal target seeker, along described transmitting tube
Axially at least provided with twice bore group, per pass bore group is provided with the bore that at least two radial symmetric are arranged, the inner of each bore
It is connected with described axially extending bore respectively, each described bore is separately installed with medicine box, divide between described medicine box and described bore
Not being provided with ammunition chamber, the outer end of described medicine box is connected with injection tube, and the external end head of described injection tube and sidewall are respectively equipped with and note
The injection orifice that shooting cylinder inner chamber communicates, the outer wall of described transmitting tube is embedded with multiple strong magnet.
Relative to prior art, this utility model achieves following beneficial effect: before going into the well, and installs fried in ammunition chamber
Medicine, at the inner chamber installation sealing agent packing element of injection tube, installs primacord in the axially extending bore of transmitting tube, and the lower end of primacord is divided
Not being connected with the explosive in each ammunition chamber, the upper end of primacord is drawn out on aboveground explosive controller.The upper end of transmitting tube with
Drilling rod spins, elliposoidal target seeker down, when transmitting tube arrive precalculated position, down-hole time, by the liquid in drilling rod to initiator
Pressurizeing or light primacord, ignition charge by explosive controller, each injection tube is injected in the borehole wall under the effect of explosive, rock
Being racked by sealing agent packing element, sealing agent glue enters rock crevice, it is achieved the purpose of leak stopping Gu Bi.Indivedual injection tubes are in blast punching
Hit and the borehole wall under power effect, could not be entered, drop in pit shaft together with the iron filings produced with medicine box or blast, as removed not in time, hold
It is easily caused follow-up well construction machinery drilling speed to reduce, bit wear, even results in the down-hole accidents such as bit freezing.This utility model uses
The injection tube that strong magnet will fall off adsorbs on transmitting tube with medicine box, rises to ground with drilling rod and reclaims, it is to avoid above irony material
Material is retained in pit shaft, improves drilling efficiency and safety.
As improvement of the present utility model, described strong magnet is distributed six along the even circumferential of the same section of described transmitting tube
Individual, constitute strong magnet group.All directions at transmitting tube circumference are equipped with strong magnet, and the effect removing iron filings is more preferable.
As further improvement of the utility model, described strong magnet group is axially arranged with multiple tracks along described transmitting tube.By force
The number of channels that group of magnets is arranged is the most, and the effect removing iron filings is the best.
As further improvement of the utility model, described in adjacent twice, between bore group, it is respectively equipped with described strong magnetic together
Ferrum group.Ensure that the strong magnet that each injection tube highly failing to enter the borehole wall all can be closed on adsorbs.
As further improvement of the utility model, it is provided with between lower end and the described elliposoidal target seeker of described transmitting tube
Centralizer, the female thread of described centralizer upper end spins mutually with the external screw thread of described transmitting tube lower end, described centralizer lower end
External screw thread spins mutually with the female thread of described elliposoidal target seeker upper end.Centralizer is conducive to transmitting tube placed in the middle in the wellbore,
Avoid that transmitting tube is crooked causes injection tube and wall collisions friction, reduce the damage in advance of injection tube.
As further improvement of the utility model, the excircle diameter of described centralizer and described elliposoidal target seeker are
Diameter at major diameter is suitable.The outer end of injection tube and the spacing of launcher-tube line are less than at elliposoidal target seeker maximum gauge
With the spacing of launcher-tube line, the excircle of centralizer and the maximum gauge of elliposoidal target seeker be in be axially formed two high
Point, it can be ensured that transmitting tube will not be close to the borehole wall, avoids the damage in advance of injection tube more safely.
As further improvement of the utility model, the periphery of described centralizer is provided with the centralizer that multiple tracks axially extends
Guiding gutter.Drilling fluid can successfully pass through from centralizer guiding gutter, reduces the syringe running resistance at pit shaft.
As further improvement of the utility model, described centralizer guiding gutter is arranged with four roads.
As further improvement of the utility model, the periphery of described elliposoidal target seeker is provided with what multiple tracks axially extended
Target seeker guiding gutter.Drilling fluid can successfully pass through from target seeker guiding gutter, reduces the syringe traveling at pit shaft further
Resistance.
As further improvement of the utility model, described target seeker guiding gutter is arranged with four roads.
Accompanying drawing explanation
Being described in further detail this utility model with detailed description of the invention below in conjunction with the accompanying drawings, accompanying drawing only provides ginseng
Examine and use is described, being not used to limit this utility model.
Fig. 1 is the structural representation of this utility model down-hole leggy leak stopping syringe.
In figure: 1. transmitting tube；1a. axially extending bore；1b. bore；2. elliposoidal target seeker；2a. target seeker guiding gutter；3. medicine
Box；3a. ammunition chamber；4. injection tube；4a. injection orifice；5. centralizer；5a. centralizer guiding gutter；6. strong magnet.
Detailed description of the invention
As it is shown in figure 1, down-hole of the present utility model leggy leak stopping syringe includes that transmitting tube 1, the center of transmitting tube 1 set
Having axially extending bore 1a, the lower end of transmitting tube 1 connects elliposoidal target seeker 2, axial at least provided with twice bore along transmitting tube 1
Group, per pass bore group is provided with bore 1b that at least two radial symmetric are arranged, the inner of each bore 1b respectively with axially extending bore 1a
Being connected, be separately installed with medicine box 3 in each bore 1b, medicine box 3 is directly connected in bore 1b, divides between medicine box 3 and bore 1b
Not being provided with ammunition chamber 3a, the outer end of medicine box 3 is connected with injection tube 4, and the external end head of injection tube 4 and sidewall are respectively equipped with and injection tube
The injection orifice 4a that inner chamber communicates, the outer wall of transmitting tube 1 is embedded with multiple strong magnet 6.
Before going into the well, installing explosive in the 3a of ammunition chamber, the inner chamber at injection tube 4 installs sealing agent packing element, at transmitting tube 1
Installing primacord in axially extending bore 1a, the lower end of primacord is connected with the explosive in each ammunition chamber 3a respectively, the upper end of primacord
It is drawn out on aboveground explosive controller.The upper end of transmitting tube 1 spins with drilling rod, elliposoidal target seeker 2 down, when transmitting tube 1
When arriving precalculated position, down-hole, to initiator pressurization or light primacord by explosive controller by the liquid in drilling rod, draw
Bursting charge, each injection tube 4 is injected in the borehole wall under the effect of explosive, and sealing agent packing element is racked by rock, and sealing agent glue enters
Rock crevice, it is achieved the purpose of leak stopping Gu Bi.Indivedual injection tubes 4 could not enter the borehole wall, with medicine box 3 under explosive forces effect
Or the iron filings that blast produces drop together in pit shaft, this utility model uses the injection tube 4 and medicine box 3 that strong magnet 6 will fall off
Absorption, on transmitting tube 1, rises to ground with drilling rod and reclaims, it is to avoid above ferrous material is retained in pit shaft, improve drilling well effect
Rate and safety.
Along being axially arranged with together of transmitting tube 1, twice or three roads above strong magnet group, preferably adjacent twice bore group it
Between be respectively equipped with strong magnet group.Often group strong magnet group is perfectly even distributed six strong magnets at the circumference of the same section of transmitting tube
6.All directions at transmitting tube 1 circumference are equipped with strong magnet 6, and the effect removing iron filings is more preferable.The number of channels that strong magnet group is arranged
The most, the closer to injection tube 4, the effect removing iron filings is the best.Ensure that each injection tube 4 highly failing to enter the borehole wall all can quilt
The strong magnet absorption closed on.
Centralizer 5, the female thread of centralizer 5 upper end and transmitting it is provided with between lower end and the elliposoidal target seeker 2 of transmitting tube 1
The external screw thread of pipe 1 lower end spins mutually, and the external screw thread of centralizer 5 lower end spins mutually with the female thread of elliposoidal target seeker 2 upper end.Hold up
Positive device 5 is conducive to the most placed in the middle for transmitting tube 1, it is to avoid transmitting tube 1 is crooked causes injection tube 4 and wall collisions friction, subtracts
The damage in advance of few injection tube 4.
Diameter at the excircle diameter of centralizer 5 and elliposoidal target seeker 2 maximum gauge is suitable.The outer end of injection tube 4
It is less than at elliposoidal target seeker 2 maximum gauge with the spacing of launcher-tube line and the spacing of launcher-tube line, centralizer 5
The maximum gauge of excircle and elliposoidal target seeker 2 is in and is axially formed two high point, it can be ensured that transmitting tube 1 will not be close to well
Wall, avoids the damage in advance of injection tube 4 more safely.
The periphery of centralizer 5 is provided with the centralizer guiding gutter 5a that multiple tracks axially extends, and guiding gutter 5a is the most right for centralizer
Claim to be provided with four roads.The periphery of elliposoidal target seeker 2 is provided with the target seeker guiding gutter 2a that multiple tracks axially extends, target seeker guiding gutter
2a is preferably arranged with four roads.Drilling fluid can successfully pass through from centralizer guiding gutter 5a or target seeker guiding gutter 2a, reduces
Syringe is at the running resistance of pit shaft.
The foregoing is only the preferable possible embodiments of this utility model, non-therefore limit to patent of the present utility model
Protection domain.In addition to the implementation, this utility model can also have other embodiments.All employing equivalents or equivalence become
Change the technical scheme of formation, all fall within the protection domain of this utility model requirement.This utility model is special without the technology described
Levy and can pass through or use prior art to realize, do not repeat them here.
Claims (10)
1. a down-hole leggy leak stopping syringe, including transmitting tube, the center of described transmitting tube is provided with axially extending bore, described
Penetrate the lower end of pipe to connect and have elliposoidal target seeker, axial at least provided with twice bore group, per pass bore group along described transmitting tube
Being provided with the bore that at least two radial symmetric are arranged, the inner of each bore is connected with described axially extending bore respectively, each described seat
Being separately installed with medicine box in hole, be respectively equipped with ammunition chamber between described medicine box and described bore, the outer end of described medicine box is connected with
Injection tube, the external end head of described injection tube and sidewall are respectively equipped with the injection orifice communicated with injection tube inner chamber, it is characterised in that: institute
The outer wall stating transmitting tube is embedded with multiple strong magnet.
A kind of down-hole the most according to claim 1 leggy leak stopping syringe, it is characterised in that: described strong magnet is along described
The even circumferential of the same section of transmitting tube is distributed six, constitutes strong magnet group.
A kind of down-hole the most according to claim 2 leggy leak stopping syringe, it is characterised in that: described strong magnet group is along institute
That states transmitting tube is axially arranged with multiple tracks.
A kind of down-hole the most according to claim 3 leggy leak stopping syringe, it is characterised in that: bore described in adjacent twice
Described strong magnet group together it is respectively equipped with between group.
A kind of down-hole the most according to claim 1 leggy leak stopping syringe, it is characterised in that: the lower end of described transmitting tube
And it is provided with the outer spiral shell of centralizer, the female thread of described centralizer upper end and described transmitting tube lower end between described elliposoidal target seeker
Stricture of vagina spins mutually, and the external screw thread of described centralizer lower end spins mutually with the female thread of described elliposoidal target seeker upper end.
A kind of down-hole the most according to claim 5 leggy leak stopping syringe, it is characterised in that: the cylindrical of described centralizer
Diameter at week diameter and described elliposoidal target seeker maximum gauge is suitable.
A kind of down-hole the most according to claim 6 leggy leak stopping syringe, it is characterised in that: the periphery of described centralizer
It is provided with the centralizer guiding gutter that multiple tracks axially extends.
A kind of down-hole the most according to claim 7 leggy leak stopping syringe, it is characterised in that: described centralizer guiding gutter
It is arranged with four roads.
A kind of down-hole the most according to any one of claim 1 to 8 leggy leak stopping syringe, it is characterised in that: described
The periphery of elliposoidal target seeker is provided with the target seeker guiding gutter that multiple tracks axially extends.
A kind of down-hole the most according to claim 9 leggy leak stopping syringe, it is characterised in that: described target seeker water conservancy diversion
Groove is arranged with four roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620641877.3U CN205858265U (en) | 2016-06-27 | 2016-06-27 | A kind of down-hole leggy leak stopping syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620641877.3U CN205858265U (en) | 2016-06-27 | 2016-06-27 | A kind of down-hole leggy leak stopping syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858265U true CN205858265U (en) | 2017-01-04 |
Family
ID=57637183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620641877.3U Active CN205858265U (en) | 2016-06-27 | 2016-06-27 | A kind of down-hole leggy leak stopping syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858265U (en) |
Cited By (2)
| 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 |
| CN111485839A (en) * | 2019-01-25 | 2020-08-04 | 中国石油天然气股份有限公司 | Plunger trapping apparatus and system |
-
2016
- 2016-06-27 CN CN201620641877.3U patent/CN205858265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485839A (en) * | 2019-01-25 | 2020-08-04 | 中国石油天然气股份有限公司 | Plunger trapping apparatus and system |
| CN110185412A (en) * | 2019-05-24 | 2019-08-30 | 中国石油大学(北京) | Underground device for plugging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170906 Address after: 225261 Jiangsu Province, Yangzhou city Jiangdu District Shaobo Gantang Road No. 101 Co-patentee after: SINOPEC EAST CHINA PETROLEUM ENGINEERING CO., LTD. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 225261 Jiangsu Province, Yangzhou city Jiangdu District Shaobo Gantang Road No. 101 Co-patentee before: Sinopec Jiangsu Petroleum Engineering Co., Ltd. Patentee before: SINOPEC OILFIELD SERVICE CORPORATION |
|
| TR01 | Transfer of patent right |