阅读说明：本技术 一种振动器及振动负压解堵管柱 (A kind of vibrator and vibration negative-pressure de-plugging tubing string ) 是由 吕延安 薛智鹏 王力 王宝兴 吕楠 许鑫 于 2019-09-09 设计创作，主要内容包括：本发明属于油气井开发技术领域,具体涉及一种振动器及振动负压解堵管柱。该振动器,包括上接头,上接头的一端通过螺纹连接有中心管；中心管外侧套装有外套；外套相对中心管之间为转动连接；中心管的尾端还设置有顶帽；顶帽的外形为圆锥状；中心管的径向上设置有多个喷嘴一,外套的径向上设置有多个喷嘴二；当外套经过旋转后喷嘴二的出口能够与喷嘴一的出口连通。该振动负压解堵管柱,包括上述的振动器,还包括封隔器；封隔器位于振动器以上的油管柱上。该振动器能够为油层提供脉冲波,有利于解堵；该振动负压解堵管柱通过振动和在油层提供负压的双作用下,达到排出油层的堵塞物,进行解堵,解堵效果好。(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.)

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.

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.