CN110529063A - A kind of vibrator and vibration negative-pressure de-plugging tubing string - Google Patents
A kind of vibrator and vibration negative-pressure de-plugging tubing string Download PDFInfo
- Publication number
- CN110529063A CN110529063A CN201910857725.5A CN201910857725A CN110529063A CN 110529063 A CN110529063 A CN 110529063A CN 201910857725 A CN201910857725 A CN 201910857725A CN 110529063 A CN110529063 A CN 110529063A
- Authority
- CN
- China
- Prior art keywords
- vibrator
- central tube
- housing
- tubing string
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/005—Fishing for or freeing objects in boreholes or wells using vibrating or oscillating means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
Abstract
The invention belongs to oil/gas well development technique fields, and in particular to a kind of vibrator and vibration negative-pressure de-plugging tubing string.One end of the vibrator, including top connection, top connection has been connected through a screw thread central tube；Central tube outer sheath is equipped with housing；Housing with respect between central tube for rotation connection；The tail end of central tube is additionally provided with top cap；The shape of top cap is coniform；Central tube is radially provided with multiple nozzles one, and housing is radially provided with multiple nozzles two；When housing can be with the outlet of nozzle one by the outlet of rotation rear nozzle two.The vibration negative-pressure de-plugging tubing string further includes packer including above-mentioned vibrator；Packer is located on the tubing string of vibrator or more.The vibrator can provide impulse wave for oil reservoir, be conducive to de-plugging；The vibration negative-pressure de-plugging tubing string reaches the tamper of discharge oil reservoir by vibration and under the double acting that oil reservoir provides negative pressure, carries out de-plugging, and plugging removal effect is good.
Description
Technical field
The invention belongs to oil/gas well development technique fields, and in particular to a kind of vibrator and vibration negative-pressure de-plugging tubing string.
Background technique
Oil/gas well recover the oil during, artificially manufacture layer crack frequently with acidification-fracturing technique, promote oil-gas reservoir from
It is flowed out in crack.However during actual job, the rock fracture of oil-gas reservoir, which often will appear during output oil gas, to be blocked
The problem of plug thing, particle or mud block.For the technological deficiency that the rock fracture of oil-gas reservoir is blocked, inventor provide
A kind of vibration-negative pressure deblocking tubing string carries out the scheme of de-plugging.
Summary of the invention
For the defects in the prior art, present invention seek to address that at least one technological deficiency therein, provides one thus
Kind vibrator and vibration negative-pressure de-plugging tubing string, the vibrator can provide impulse wave for oil reservoir, be conducive to de-plugging；The vibration negative-pressure
De-plugging tubing string reaches the tamper of discharge oil reservoir by vibration and under the double acting that oil reservoir provides negative pressure, carries out de-plugging, de-plugging
Effect is good.
Technical solution provided by the invention is as follows；
One end of a kind of vibrator, including top connection, the top connection has been connected through a screw thread central tube；The central tube
Outer sheath is equipped with housing；It is rotation connection between the relatively described central tube of the housing；The tail end of the central tube is additionally provided with
Top cap；The shape of the top cap is coniform；The central tube is radially provided with multiple nozzles one, the radial direction of the housing
On be provided with multiple nozzles two；When the outlet of the nozzle two can be with the outlet of the nozzle one after rotation for the housing
Connection.
Housing can be rotated relative to central tube, and after liquid pressurising in central tube, liquid is sprayed from nozzle one, then housing
It builds the pressure, is sprayed from the nozzle two of housing, since there are angles between nozzle one and nozzle two, in liquid between central tube
By the process that nozzle one and nozzle two spray, housing can opposite central tube rotate, such liquid nozzle one and nozzle two it
Between rotate spray, formed high energy hydrodynamic wave (H wave)；Because the intrinsic frequency between rock stratum, liquid and tamper is different, each self-produced
Raw vibration acceleration and amplitude is also different, causes two kinds of phase material interfaces that relative motion occurs, and blocking composition granule generates phase
It is loose to movement, expand the dirt on the pore constriction of rock stratum, grease stain, colloid rapid deterioration and dissolution therewith in a liquid
It dissipates, to achieve the purpose that dredge oil flow channel.The high-pressure water jet that hydraulic vibration generates can clean preforation tunnel and nearly well
Seepage flow duct.
It should be noted that the discharge capacity in the aperture and pump of nozzle one and nozzle two is to influence the parameter of vibration frequency；Therefore
In the design, different oil reservoirs can be handled by changing the aperture of nozzle and adjusting the discharge capacity of pump, carries out reasonable de-plugging.
Above-mentioned vibrator is provided with bearing, the housing and the central tube between the housing and the central tube
Between by the bearing rotate.
The quantity of above-mentioned vibrator, the nozzle one and the nozzle two is four, and four nozzles one are respectively
The intersection of axis extended line after form rectangle, form rectangle after four nozzle two respective axis extended lines intersections.
Above-mentioned vibrator, the bearing are angular contact ball bearing.
Above-mentioned vibrator is fixed between the central tube and the top cap using holding screw, the holding screw
Outside is additionally provided with silk plug.Holding screw is used for fixed center pipe and top cap, prevents top cap from falling off, in order to prevent holding screw quilt
Corroded by liquid is provided with silk plug.
Above-mentioned vibrator, the silk plug are made of rubber material, are threaded on the side wall of the top cap.
It further includes packer that the present invention also provides a kind of vibration negative-pressure de-plugging tubing strings including above-mentioned vibrator；The envelope
Every on the tubing string that device is located at the vibrator or more.
Above-mentioned vibration negative-pressure de-plugging tubing string, the packer are setting in casing by the way of pressurising and compression phase structure
It is interior.Packer pressurising (hydraulic pressuring difference formula) makes packing element expansion to setting, and the inventive point in the present invention is not only there is pressurising
Setting mode is expanded, having also combined compression makes packing element deformation to setting.Since conventional compression makes packing element deform setting, In
When negative pressure is provided on packer, setting actual effect will be made, therefore it is setting to additionally use pressurising mode here.
Above-mentioned vibration negative-pressure de-plugging tubing string, is additionally provided with standing valve between the packer and the vibrator.
Standing valve will be isolated after throwing steel ball with tubing string below, so that packer set internal surface of sleeve pipe can be made by suppressing；Together
When, due to tubing string isolating seal below, negative pressure can also be provided when raising and decentralizing packer, carry out de-plugging.
Above-mentioned vibration negative-pressure de-plugging tubing string, it is all between the standing valve and the vibrator to be additionally provided with threeway
You, the threeway valve with the axially extending bore and L shape wall circulation road being connected with tubing string；The L shape wall circulation road packet
Axial hole and radial hole are included, wherein the opening of the axial hole is provided with steel ball, when pressurising, the steel ball can be closed described
Axial hole.
The quantity of above-mentioned vibration negative-pressure de-plugging tubing string, the vibrator and the threeway valve is multiple, wherein often
One oil reservoir depth is respectively provided with the vibrator；It is more than each vibrator to be respectively provided with the threeway all
You.
It should be noted that vibration is in advance, vibration is carried out before non-pitching, and setting suction, shape are carried out after pitching
At negative pressure.
The beneficial effects of the present invention are embodied in:
Vibrator of the invention, which uses, is provided with nozzle between central tube and housing, housing rotates under fluid pressure, is
Oil reservoir provides the water jet of certain frequency, and the aperture by changing pumpage or nozzle can also change the frequency of water jet,
Because the intrinsic frequency between rock stratum, liquid and tamper is different, the vibration acceleration and amplitude respectively generated is also different,
Two kinds of phase material interfaces are caused to occur relative motions, blocking composition granule generates relative motion and loose, also makes rock stratum hole larynx
Dirt, grease stain, colloid rapid deterioration and dissolution on road are spread therewith in a liquid, to reach the mesh of dredging oil flow channel
's.
Vibration negative-pressure de-plugging tubing string of the invention, wherein the setting and setting mode combined of pressurising is compressed by packer,
The pitching in standing valve, the annular space of seal pack device tubing string below and casing, it is upper mention tubing string when provide it is negative
Pressure.Due to the sealing of standing valve during above mentioning, packer also in setting state, will not pressure release, therefore will not influence negative
The formation of pressure.Due to the structure of vibrator, vibration negative-pressure de-plugging tubing string of the invention is after vibration, in conjunction with the pumping of negative pressure
It inhales, so that plugging removal effect is more preferably.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram of vibrator of the invention；
Fig. 2 is the sectional view in Fig. 1 at A-A；
Fig. 3 is the structural schematic diagram for the vibration negative-pressure de-plugging tubing string that one embodiment of the invention provides.
The reference numerals are as follows:
1, top connection；2, central tube；3, housing；4, top cap；5, nozzle one；6, nozzle two；7, bearing；8, holding screw；
9, silk plug；10, vibrator；11, packer；12, standing valve；13, threeway valve；14, axially extending bore；15, L shape wall circulates
Road；16, axial hole；17, radial hole.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
The present invention provides a kind of vibrator 10, and as depicted in figs. 1 and 2, including top connection 1, the lower end of top connection 1 pass through spiral shell
Line is fixedly connected with central tube 2；2 outer sheath of central tube is equipped with housing 3；Housing 3 is with respect to being rotation connection between central tube 2, outside
It is provided with angular contact ball bearing 7 between set 3 and central tube 2, is rotated between housing 3 and central tube 2 by angular contact ball bearing 7；
The tail end of central tube 2 is additionally provided with top cap 4；The shape of top cap 4 is coniform；Central tube 2 is radially provided with multiple nozzles
One 5, housing 3 is radially provided with multiple nozzles 26；When housing 3 can be with nozzle one by the outlet of rotation rear nozzle 26
5 outlet.
Housing 3 can be rotated relative to central tube 2, and after liquid pressurising in central tube 2, liquid is sprayed from nozzle 1, then
Build the pressure between housing 3 and central tube 2, sprayed from the nozzle 26 of housing 3, due between nozzle 1 and nozzle 26 there are angle,
Therefore the process sprayed in liquid by nozzle 1 and nozzle 26, housing 3 can be rotated relative to central tube 2, and such liquid is spraying
It rotates and sprays between mouth 1 and nozzle 26, form high energy hydrodynamic wave (H wave)；Because of the intrinsic frequency between rock stratum, liquid and tamper
Difference causes two kinds of phase material interfaces that relative motion occurs so the vibration acceleration and amplitude that respectively generate are also different, blocks up
Plug thing particle generate relative motion and it is loose, also make the dirt on the pore constriction of rock stratum, grease stain, colloid rapid deterioration and be dissolved in
It is spread therewith in liquid, to achieve the purpose that dredge oil flow channel.The high-pressure water jet that hydraulic vibration generates, which can clean, to be penetrated
Hole eyelet and nearly well seepage flow duct.
The discharge capacity in the aperture and pump of nozzle 1 and nozzle 26 is to influence the parameter of vibration frequency；It therefore in the design, can
To handle different oil reservoirs by the discharge capacity of the aperture for changing nozzle and adjusting pump, reasonable de-plugging is carried out.
As shown in Fig. 2, the quantity of nozzle 1 and nozzle 26 is four, four respective axis extended lines of nozzle 1
Rectangle is formed after intersection, forms rectangle after the four respective axis extended line of nozzle 26 intersections.
Fig. 1 is please referred to, fixed using holding screw 8 between central tube 2 and top cap 4, the outside of holding screw 8 is additionally provided with
Silk plug 9.Holding screw 8 prevents top cap 4 from falling off, holding screw 8 is invaded by liquid in order to prevent for fixed center pipe 2 and top cap 4
Erosion is provided with silk plug 9；Silk plug 9 is made of rubber material, is threaded on the side wall of top cap 4.
As shown in figure 3, further including envelope the present invention also provides a kind of vibration negative-pressure de-plugging tubing string including above-mentioned vibrator 10
Every device 11；The packer 11 is located on the tubing string of 10 or more the vibrator.The packer 11 is using pressurising and compression
The mode of phase structure is setting in casing.11 pressurising of packer (hydraulic pressuring difference formula) makes packing element expansion to setting, in the present invention
Inventive point be not only there is pressurising to expand setting mode, having also combined compression makes packing element deformation to setting.Due to normal
The compression of rule keeps packing element deformation setting, when packer 11 above provides negative pressure, will make setting actual effect, therefore additionally use here
Pressurising mode is setting.
Please continue to refer to Fig. 3, above-mentioned vibration negative-pressure de-plugging tubing string, between the packer 11 and the vibrator 10
It is additionally provided with standing valve 12.Standing valve 12 will be isolated after throwing steel ball with tubing string below, so that suppressing can make
The setting internal surface of sleeve pipe of packer 11；Simultaneously as with tubing string isolating seal below, also when raising and decentralizing packer 11
Negative pressure can be provided, de-plugging is carried out.
Above-mentioned vibration negative-pressure de-plugging tubing string, is additionally provided with threeway between the standing valve 12 and the vibrator 10
Valve 13, the threeway valve 13 with the axial hole 16 and L shape wall circulation road 15L being connected with tubing string；The L shape wall
Circulation road 15L includes axial hole 16 and radial hole 17, wherein the opening of the axial hole 16 is provided with steel ball, when pressurising,
The steel ball can close the axial hole 16.
The quantity of above-mentioned vibration negative-pressure de-plugging tubing string, the vibrator 10 and the threeway valve 13 be it is multiple,
In each oil reservoir depth be respectively provided with the vibrator 10；Each 10 or more vibrator is respectively provided with described in one
Threeway valve 13.In advance, vibration is carried out before non-pitching for vibration, and setting suction is carried out after pitching, forms negative pressure.
Vibrator of the invention, which uses, is provided with nozzle between central tube and housing, housing rotates under fluid pressure, is
Oil reservoir provides the water jet of certain frequency, and the aperture by changing pumpage or nozzle can also change the frequency of water jet,
Because the intrinsic frequency between rock stratum, liquid and tamper is different, the vibration acceleration and amplitude respectively generated is also different,
Two kinds of phase material interfaces are caused to occur relative motions, blocking composition granule generates relative motion and loose, also makes rock stratum hole larynx
Dirt, grease stain, colloid rapid deterioration and dissolution on road are spread therewith in a liquid, to reach the mesh of dredging oil flow channel
's.
Vibration negative-pressure de-plugging tubing string of the invention, wherein the setting and setting mode combined of pressurising is compressed by packer,
The pitching in standing valve, the annular space of seal pack device tubing string below and casing, it is upper mention tubing string when provide it is negative
Pressure.Due to the sealing of standing valve during above mentioning, packer also in setting state, will not pressure release, therefore will not influence negative
The formation of pressure.Due to the structure of vibrator, vibration negative-pressure de-plugging tubing string of the invention is after vibration, in conjunction with the pumping of negative pressure
It inhales, so that plugging removal effect is more preferably.
The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；The ordinary skill of this field
Personnel are it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part
Or all technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution
The range of technical solution of various embodiments of the present invention should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of vibrator, which is characterized in that including top connection, one end of the top connection has been connected through a screw thread central tube；
The central tube outer sheath is equipped with housing；It is rotation connection between the relatively described central tube of the housing；The tail of the central tube
End is additionally provided with top cap；The shape of the top cap is coniform；The central tube is radially provided with multiple nozzles one, described
Housing is radially provided with multiple nozzles two；When the outlet of the nozzle two can be with the spray after rotation for the housing
The outlet of mouth one.
2. vibrator according to claim 1, which is characterized in that be provided with axis between the housing and the central tube
It holds, is rotated between the housing and the central tube by the bearing.
3. vibrator according to claim 2, which is characterized in that the quantity of the nozzle one and the nozzle two is four
It is a, rectangle is formed after four nozzle one respective axis extended line intersections, four respective axis of the nozzle two extend
Rectangle is formed after line intersection.
4. vibrator according to claim 3, which is characterized in that use clamp screw between the central tube and the top cap
Nail is fixed, and is additionally provided with silk plug on the outside of the holding screw.
5. vibrator according to claim 4, which is characterized in that the silk plug is made of rubber material, is threadedly coupled
On the side wall of the top cap.
6. a kind of vibration negative-pressure de-plugging tubing string including any one of claim 1 to 5 vibrator, which is characterized in that also wrap
Include packer；The packer is located on the tubing string of the vibrator or more.
7. vibrator according to claim 6, which is characterized in that the packer is using pressurising and the side for compressing phase structure
Formula is setting in casing.
8. vibrator according to claim 7, which is characterized in that also set up between the packer and the vibrator
There is standing valve.
9. vibrator according to claim 8, which is characterized in that also set between the standing valve and the vibrator
Be equipped with threeway valve, the threeway valve with the axially extending bore and L shape wall circulation road being connected with tubing string；The L shape
Wall circulation road includes axial hole and radial hole, wherein the opening of the axial hole is provided with steel ball, when pressurising, the steel ball
The axial hole can be closed.
10. vibrator according to claim 9, which is characterized in that the quantity of the vibrator and the threeway valve is equal
To be multiple, wherein each oil reservoir depth is respectively provided with the vibrator；More than each vibrator it is respectively provided with one
A threeway valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857725.5A CN110529063A (en) | 2019-09-09 | 2019-09-09 | A kind of vibrator and vibration negative-pressure de-plugging tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857725.5A CN110529063A (en) | 2019-09-09 | 2019-09-09 | A kind of vibrator and vibration negative-pressure de-plugging tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529063A true CN110529063A (en) | 2019-12-03 |
Family
ID=68668322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857725.5A Pending CN110529063A (en) | 2019-09-09 | 2019-09-09 | A kind of vibrator and vibration negative-pressure de-plugging tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110529063A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2104695C (en) * | 1991-12-28 | 2002-09-17 | Alexei Alexeevich Efimkin | Method for regaining mud circulation in operating well and device for its embodiment |
| CN202970575U (en) * | 2012-10-16 | 2013-06-05 | 中国石油天然气股份有限公司 | Blockage removing device adopting high-pressure jetting and negative-pressure pumping |
| CN203175448U (en) * | 2013-01-22 | 2013-09-04 | 中国石油天然气股份有限公司 | Rotary jet flow negative pressure suction composite blockage removal device |
| CN204782847U (en) * | 2015-06-01 | 2015-11-18 | 中国石油天然气股份有限公司 | Stifled device and on --spot tubular column of using are separated in intraductal pulse of horizontal well |
| CN208010310U (en) * | 2017-12-15 | 2018-10-26 | 四机赛瓦石油钻采设备有限公司 | A kind of centres MESH packing element of small setting force bidirectional bearing |
-
2019
- 2019-09-09 CN CN201910857725.5A patent/CN110529063A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2104695C (en) * | 1991-12-28 | 2002-09-17 | Alexei Alexeevich Efimkin | Method for regaining mud circulation in operating well and device for its embodiment |
| CN202970575U (en) * | 2012-10-16 | 2013-06-05 | 中国石油天然气股份有限公司 | Blockage removing device adopting high-pressure jetting and negative-pressure pumping |
| CN203175448U (en) * | 2013-01-22 | 2013-09-04 | 中国石油天然气股份有限公司 | Rotary jet flow negative pressure suction composite blockage removal device |
| CN204782847U (en) * | 2015-06-01 | 2015-11-18 | 中国石油天然气股份有限公司 | Stifled device and on --spot tubular column of using are separated in intraductal pulse of horizontal well |
| CN208010310U (en) * | 2017-12-15 | 2018-10-26 | 四机赛瓦石油钻采设备有限公司 | A kind of centres MESH packing element of small setting force bidirectional bearing |
Non-Patent Citations (1)
| Title |
|---|
| 崔洁: "《胜坨油田注水技术实践与发展》", 31 May 2017, 中国石油大学出版社 * |
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| PB01 | Publication | ||
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Application publication date: 20191203 |