CN205990901U - Chemical industry medicament device is noted in self-circulation type oil jacket annular space water mixing - Google Patents
Chemical industry medicament device is noted in self-circulation type oil jacket annular space water mixing Download PDFInfo
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- CN205990901U CN205990901U CN201620833175.5U CN201620833175U CN205990901U CN 205990901 U CN205990901 U CN 205990901U CN 201620833175 U CN201620833175 U CN 201620833175U CN 205990901 U CN205990901 U CN 205990901U
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Abstract
This utility model provides a kind of self-circulation type oil jacket annular space water mixing to note chemical industry medicament device, wherein device includes flow string, sets gradually oil water separator in pipe at well head, swirl-flow devices, mixing device, oil extraction pump, packer on pump on flow string from top to bottom；Described oil extraction pump is also connected with sucker rod.This utility model utilizes swirl-flow devices, using the means of eddy flow forced flow, increased the oilfield produced fluid separation scope of application, is applicable not only to stratified flow under low flow velocity, wavy stratified flow patterns, applies also for the annular flow under high flow rate and slug flow.The difficult problem such as dead oil medicated cap and surface water supply excessively during chemical industry medicament is mixed in solution.
Description
Technical field
This utility model is related to water mixing note chemical industry agent technology, and chemical industry medicine is noted in especially a kind of self-circulation type oil jacket annular space water mixing
Agent device.
Background technology
By adding chemical agent to wellbore fluids, the fluid flow characteristics in change wellbore fluids is made to be that oil field produced
Practices well in journey, such as during oil extraction in oil field, for realizing Paraffin Removal and the antiscale of down-hole oil tube and downhole pump,
Add chemical agent from the oil jacket toric space of oil well to down-hole.In addition as in viscous crude production process, add from oil jacket annular space
Enter thinner so that the viscosity of crude reduction in pit shaft is the common technology in thick oil well bore lifting.Its action principle is in pit shaft
Add a certain amount of water soluble surfactant active's solution in fluid, so that crude oil is dispersed in activated water with small oil droplet, formed
Oil-in-water emulsion or oil-in-water type coarse dispersion system, activator solution is in tubing wall and the one layer of work of formation of sucker rod surface simultaneously
Property moisture film, play reducing viscosity by emulsifying and moistening fall resistance effect.
The technique that the heavy oil wells commonly used at present mix thinner includes, and on hollow stem pump, under pump, melting property of water mixing mixes thinner, oil
Set annular blending melting property of water mixing mixes the techniques such as thinner, the concentration of current water solublity thinner typically 5% about, so one relatively
Big heavy oil block, its water mixing well station up to tens, the hundreds of remaining mouth of water mixing oil well, day the thousands of side of watering quantity it can be seen that, its
Scale of investment and production run expense are all sufficiently expensive.But water mixing pipe string technology is also compared with heating sucker rod cost for oil production on pump or under pump
Low, especially oil field all enters development late stage, the situation of generally existing High water cut at present, produces liquid aqueous up to more than 85%, if
Replace mixing water using itself output water in oil well, can greatly save ground and build a station scale oil well daily pipe is greatly decreased
Reason expense, avoids the formation of the dead oil medicated cap of oil jacket annular space simultaneously, is a scheme achieved many things at one stroke.
Content of the invention
The purpose of this utility model is to provide a kind of self-circulation type oil jacket annular space water mixing to note chemical industry medicament device, using eddy flow
Device, using the means of eddy flow forced flow, increased the oilfield produced fluid separation scope of application, is applicable not only under low flow velocity
Stratified flow, wavy stratified flow patterns, apply also for the annular flow under high flow rate and slug flow.Solve to mix excessively dead during chemical industry medicament
The difficult problem such as oily medicated cap and surface water supply.
The purpose of this utility model can be achieved by the following technical measures：
This circulating oil jacket annular space water mixing note chemical industry medicament device includes flow string, on flow string from top to bottom according to
Mixing device, oil extraction pump, packer on oil water separator in pipe at secondary setting well head, swirl-flow devices, pump；Described oil extraction pump also connects
Connect sucker rod.
The purpose of this utility model also can be achieved by the following technical measures：
Flow string sets gradually from top to bottom oil water separator in pipe at well head, swirl-flow devices, oil extraction pump, under pump
Mixing device, packer；Described oil extraction pump is also connected with sucker rod.
In pipe at described well head, oil water separator includes oil pipe, separates set, and described separation covers empty set outside oil pipe, both
Form annular space between pipe, closure ring-shaped baffle in annular space upper end between described pipe, lower end forms restricted flow passage and is communicated to oil jacket annular space, described
Oblique ring-type split tunnel is opened up on oil pipe, annular space and oil pipe inner chamber between communicating pipe, in reducing inside annular space between described pipe
Chamber, forms ball seat, ball seat lays ball sealer at reducing, setting back-moving spring below ball sealer it is ensured that can only oil pipe inner chamber to
The single flow direction of oil jacket annular space.
Described ring-type split tunnel internal diameter is 5-10mm, and with 30-45 ° of direction of flow angle, described swirl-flow devices and ring
The vertical dimension of shape split tunnel is the length of 1-5 times of caliber.
On described pump, mixing device includes oil pipe, blends set, and outside oil pipe, both form between pipe the described set empty set that blends
Annular space, closure ring-shaped baffle in annular space lower end between described pipe, upper end forms restricted flow passage and is communicated to oil jacket annular space, described oil pipe is opened
If oblique ring-type split tunnel, annular space and oil pipe inner chamber between communicating pipe, are reducing inner chamber inside annular space between described pipe, in reducing
Place forms ball seat, and ball seat lays ball sealer, setting back-moving spring below ball sealer it is ensured that can only oil jacket annular space to oil pipe inner chamber
Single flow direction；Described ring-type split tunnel internal diameter is 5-10mm, and with 150-135 ° of direction of flow angle.
Under described pump, mixing device includes oil pipe, blends set, and outside oil pipe, both form between pipe the described set empty set that blends
Annular space, closure ring-shaped baffle in annular space lower end between described pipe, upper end forms restricted flow passage and is communicated to oil jacket annular space, described oil pipe is opened
If oblique ring-type split tunnel, annular space and oil pipe inner chamber between communicating pipe, are reducing inner chamber inside annular space between described pipe, in reducing
Place forms ball seat, and ball seat lays ball sealer, setting back-moving spring below ball sealer it is ensured that can only oil jacket annular space to oil pipe inner chamber
Single flow direction；Described ring-type split tunnel internal diameter is 5-10mm, and with 150-135 ° of direction of flow angle.
Described swirl-flow devices are made up of 4-8 piece helical blade, and blade height is less than the entrance diameter of flow string
0.6-0.8 times, centre is hollow central shaft, is fixed in the circular pipe of swirl-flow devices.
This utility model has the advantages that：
By swirl-flow devices, the complicated profit production fluid of flow pattern is organized into the water ring wanted outside, oily core is in inner annular
Stream, by compact separating flow tract and current-limiting apparatus design it is achieved that the aqueous phase separation of High water cut production fluid, then in oil jacket ring
Lean on the mode of gravity to flow on the pump in positioned at this closing space together with the chemical industry medicament mixing from well head in empty and blend dress
Put, designed by this device in the restricted flow passage entrance produced liquid in oil well mixing flow, realize the self-loopa oil of high-water-cut oil-producing well
The purpose of chemical industry agent is noted in set annular space water mixing.It is also differ completely from the ways and means of the conventional cyclonic separation in down-hole simultaneously, reduce
Segregation apparatuss, improve separating effect, reduce ground simultaneously and build a station and have saved investment.
This utility model utilizes swirl-flow devices, using the means of eddy flow forced flow, increased oilfield produced fluid separation suitable
With scope, it is applicable not only to stratified flow under low flow velocity, wavy stratified flow patterns, applies also for the annular flow under high flow rate and play shape
Stream.
Brief description
Figure 1A is the structural representation of one of embodiment of the present utility model；
Figure 1B is the structural representation of the two of embodiment of the present utility model；
Fig. 2 is the structure chart of oil water separator in pipe at well head；
Fig. 3 be pump on or pump under mixing device structure chart；
Fig. 4 is swirl-flow devices structure chart；
Fig. 5 is the swirl vane schematic diagram of swirl-flow devices；
Fig. 6 is flow pattern after eddy flow；
Fig. 7 is the B-B sectional view of Fig. 6；
Fig. 8 is the A-A sectional view of Fig. 6.
In figure：1st, oil water separator in pipe at well head；2nd, swirl-flow devices；3rd, sucker rod；4th, flow string；Mix on 5-1, pump
Mixing device；Mixing device under 5-2, pump；6th, oil extraction pump；7th, packer；8th, produce liquid import；
101st, tubing coupling；102nd, oil pipe；103rd, ring-shaped baffle；104th, ring-type split tunnel；105th, ball sealer and ball seat；
106th, back-moving spring；107th, restricted flow passage；
201st, tubing coupling；202nd, oil pipe；203rd, restricted flow passage；204th, ball sealer and ball seat；205th, back-moving spring；206、
Ring-type split tunnel；207th, ring-shaped baffle；
301st, the common flow pattern of production fluid；302nd, swirl-flow devices；303rd, ring-type flow pattern.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, cooperation brief description is as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, be not used for this utility model is any limitation as.
Fig. 1 is that self-circulation type oil jacket annular space water mixing notes a kind of schematic device of chemical industry agent method it is shown that whole follow certainly
Connected mode and the implementation method of chemical industry agent method is noted in ring type oil jacket annular space water mixing.
Fig. 2 is that in pipe at well head, oil water separator 1, it is shown that the concrete internal construction details of this device, is connect by oil pipe
Hoop 101 is connected with oil pipe column, realizes the separation of adherent water ring by ring-type split channel 104, is realized by restricted flow passage 107
Fluid flow controls and flows out, and wherein ball and ball seat 105 and back-moving spring 106 are to ensure that the separation water yield of interior circulation reaches
Ball could be promoted when lower limit to leave the outflow that separation water realized by ball seat, ensure to exceed restriction when the liquid level in sleeve pipe simultaneously
When, that is, the amount mixing and discharge are automatically switched off when unmatched.
Fig. 3 be on pump or under pump mixing device 5 it is shown that the concrete internal construction details of this device, by tubing coupling
201 are connected with oil pipe column, realize separation water and the mixture of chemical industry agent and the blending of product liquid by ring-type split channel 206,
Fluid flow control and inflow, wherein ball and ball seat 204 is realized by restricted flow passage 203 and in back-moving spring 205 is also to ensure that
The separation water yield of circulation and blend the balance of the water yield and device is set.
Fig. 4, Fig. 5 are the structural representation of swirl-flow devices.
Fig. 6 is that oilfield produced fluid is converted into annular flow after different flow patterns pass through rotary apparatuss 4 in vertical circular pipe
Flow pattern schematic diagram；Wherein：The stratified flow that Fig. 8 A-A shows for pipeline section, the annular flow that Fig. 7 B-B shows for pipeline section.
Chemical industry medicament device is noted in self-circulation type oil jacket annular space water mixing, including flow string, on flow string from top to bottom
Set gradually oil water separator 1 in pipe at well head, swirl-flow devices 2, mixing device 5-1, oil extraction pump 6, packer 7 on pump；Described
Oil extraction pump is also connected with sucker rod 3.
As mode of texturing, self-circulation type oil jacket annular space water mixing notes chemical industry medicament device, on flow string from top to bottom
Set gradually oil water separator 1 in pipe at well head, swirl-flow devices 2, oil extraction pump 6, mixing device 5-2, packer 7 under pump；Described
Oil extraction pump is also connected with sucker rod 3.
In pipe at described well head, oil water separator includes oil pipe 102, separates set, and described separation covers empty set outside oil pipe,
Both form annular space between pipe, closure ring-shaped baffle 103 in annular space upper end between described pipe, and lower end forms restricted flow passage 107 and is communicated to oil
Set annular space, described oil pipe opens up oblique ring-type split tunnel 104, annular space and oil pipe inner chamber, ring between described pipe between communicating pipe
Empty inside is reducing inner chamber, forms ball seat at reducing, and ball sealer laid by ball seat, arranges back-moving spring 106 below ball sealer, protects
Card can only single flow direction from oil pipe inner chamber to oil jacket annular space.Described ring-type split tunnel internal diameter is 5-10mm, and and direction of flow
The vertical dimension of 30-45 ° of angle, described swirl-flow devices and ring-type split tunnel is the length of 1-5 times of caliber.
On described pump, mixing device includes oil pipe 202, blends set, and outside oil pipe, both form the described set empty set that blends
Annular space between pipe, closure ring-shaped baffle 207 in annular space lower end between described pipe, upper end forms restricted flow passage 203 and is communicated to oil jacket annular space, institute
State and oblique ring-type split tunnel 206 is opened up on oil pipe, annular space and oil pipe inner chamber between communicating pipe, for becoming inside annular space between described pipe
Footpath inner chamber, forms ball seat, ball seat lays ball sealer at reducing, and setting back-moving spring 205 below ball sealer is it is ensured that can only oil jacket
Annular space is to the single flow direction of oil pipe inner chamber；Described ring-type split tunnel internal diameter be 5-10mm, and with direction of flow angle 150-
135°.
Under described pump, mixing device is identical with mixing device structure on pump.
Described swirl-flow devices 2 are made up of 4-8 piece helical blade, and blade height is less than the entrance diameter of flow string 4
0.6-0.8 times, centre is hollow central shaft, is fixed in the circular pipe of swirl-flow devices.
Embodiment 1：
, due to the complicated components of two-phase fluid taking mixing method on pump as a example, different flow patterns can be assumed in pipeline, adopt
High water cut in tubing string 4 produces liquid and flows through after the sucker rod 3 entrance swirl-flow devices 2 of tube hub with various different flow patterns,
By after spiral-flow type rectification oil-water two-phase flow packing density difference the reason develop into the uniform thickness being close to tube wall water ring and in
Between oily core profit annular flow, when the water ring being close to tube wall flows to oil water separator 1 in pipe at well head, by with come
The abduction form of 30-45 ° of angular separation of stream flows out, and wherein outflow channel gap is 5-10mm, swirl-flow devices and outflow channel
Vertical dimension is the length of 1-5 times of caliber.The restricted flow passage that the product liquid flowing out passes through in oil water separator 1 in pipe at well head is pressed and is worked as
Just the watering flow of design is conditional controls the water yield entering oil jacket annular space it is ensured that mixing the concentration requirement of chemical industry medicament.Point
The water separating out then in oil jacket annular space together with the chemical industry medicament mixing from well head lean on gravity mode flow to positioned at this envelope
Close in mixing device 5-1 on the pump in space, designed by this device in the restricted flow passage entrance produced liquid in oil well mixing flow,
The purpose of chemical industry agent is noted in the self-loopa oil jacket annular space water mixing realizing high-water-cut oil-producing well.Wherein packer 7 is to ensure that in oil pipe and set
Form an airtight flow channel between pipe, prevent down-hole production fluid from blending the impact of system to Automatic Cycle, produce liquid import 8
Being to ensure that being capable of the unrestricted suction system entering oil extraction pump 6 from the fluid of oil reservoir output.Therefore pass through produce liquid import 8,
In pipe at mixing device 5-1, flow string 4, sucker rod 3, swirl-flow devices 2 and well head on packer 7, oil extraction pump 6, pump, profit divides
Constitute two sets of pressure systems from device, i.e. two sets of blood circulation, be respectively completed lifting and the oil field producing liquid according to respective requirement
The separation of water and self-loopa process.
Embodiment 2：
, principle, with embodiment 1, repeats no more taking mixing method under pump as a example.
Starting point of the present utility model is using the feature producing High water cut (80-95%) in liquid, contains producing liquid height in oil pipe
Water, by special downhole separation, provides required oil field output water by blending concentration, had both decreased surface construction large-scale
Water mixing station, decrease the expense of surface gathering and transferring.This utility model mainly includes following components, ground or down-hole dosing
System, pipe inward turning streaming oil water separator at well head, flow string, oil extraction pump, mixing device on pump or under pump.Mainly adopt well
At mouthful, the liquid that produces of High water cut is rectified into producing liquid in edge by pipe inward turning streaming oil water separator by the method for symmetrical blading eddy flow
The heart axisymmetric ring-type flow pattern, that is, along circular wall equally distributed equal thickness water ring and the oil concentrating on circular pipe center
Core, then utilizes circular pipe symmetry, circumferentially separates pro rata for outer layer water, then passes through oil jacket annular space by weight
The chemical industry medicament that power mode and well head mix be flowed on arrangement and pump or under pump mixing device entrance, realize chemical industry medicament
The method that Automatic Cycle mixes.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, its
He uses the equivalence changes of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (7)
1. self-circulation type oil jacket annular space water mixing note chemical industry medicament device, including flow string it is characterised in that on flow string
Set gradually oil water separator in pipe at well head, swirl-flow devices, mixing device, oil extraction pump, packer on pump from top to bottom；Described
Oil extraction pump is also connected with sucker rod.
2. self-circulation type oil jacket annular space water mixing note chemical industry medicament device, including flow string it is characterised in that on flow string
Set gradually oil water separator in pipe at well head, swirl-flow devices, oil extraction pump, mixing device, packer under pump from top to bottom；Described
Oil extraction pump is also connected with sucker rod.
3. self-circulation type oil jacket annular space water mixing according to claim 1 and 2 note chemical industry medicament device is it is characterised in that institute
State oil water separator in pipe at well head to include oil pipe, separate set, outside oil pipe, both form ring between pipe to the described set empty set that separates
Sky, closure ring-shaped baffle in annular space upper end between described pipe, lower end forms restricted flow passage and is communicated to oil jacket annular space, described oil pipe opens up
Oblique ring-type split tunnel, annular space and oil pipe inner chamber between communicating pipe, are reducing inner chamber inside annular space between described pipe, at reducing
Form ball seat, ball seat lays ball sealer, setting back-moving spring below ball sealer it is ensured that can only list from oil pipe inner chamber to oil jacket annular space
To flow direction.
4. self-circulation type oil jacket annular space water mixing according to claim 3 note chemical industry medicament device is it is characterised in that described ring
Shape split tunnel internal diameter is 5-10mm, and with direction of flow angle 30-45, the hanging down of described swirl-flow devices and ring-type split tunnel
Straight distance is the length of 1-5 times of caliber.
5. self-circulation type oil jacket annular space water mixing according to claim 1 note chemical industry medicament device is it is characterised in that described pump
Upper mixing device includes oil pipe, blends set, and outside oil pipe, both form annular space between pipe to the described set empty set that blends, between described pipe
Annular space lower end blocks ring-shaped baffle, and upper end forms restricted flow passage and is communicated to oil jacket annular space, and described oil pipe opens up oblique ring-type
Split tunnel, annular space and oil pipe inner chamber between communicating pipe, it is reducing inner chamber inside annular space between described pipe, at reducing, form ball seat,
Ball sealer laid by ball seat, below ball sealer setting back-moving spring it is ensured that can only single flow direction from oil jacket annular space to oil pipe inner chamber；Institute
State ring-type split tunnel internal diameter be 5-10mm, and with direction of flow angle 150-135.
6. self-circulation type oil jacket annular space water mixing according to claim 2 note chemical industry medicament device is it is characterised in that described pump
Lower mixing device includes oil pipe, blends set, and outside oil pipe, both form annular space between pipe to the described set empty set that blends, between described pipe
Annular space lower end blocks ring-shaped baffle, and upper end forms restricted flow passage and is communicated to oil jacket annular space, and described oil pipe opens up oblique ring-type
Split tunnel, annular space and oil pipe inner chamber between communicating pipe, it is reducing inner chamber inside annular space between described pipe, at reducing, form ball seat,
Ball sealer laid by ball seat, below ball sealer setting back-moving spring it is ensured that can only single flow direction from oil jacket annular space to oil pipe inner chamber；Institute
State ring-type split tunnel internal diameter be 5-10mm, and with direction of flow angle 150-135.
7. self-circulation type oil jacket annular space water mixing according to claim 1 and 2 note chemical industry medicament device is it is characterised in that institute
State swirl-flow devices to be made up of 4-8 piece helical blade, blade height is less than 0.6-0.8 times of the entrance diameter of flow string, in
Between be hollow central shaft, be fixed in the circular pipe of swirl-flow devices.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620833175.5U CN205990901U (en) | 2016-08-01 | 2016-08-01 | Chemical industry medicament device is noted in self-circulation type oil jacket annular space water mixing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620833175.5U CN205990901U (en) | 2016-08-01 | 2016-08-01 | Chemical industry medicament device is noted in self-circulation type oil jacket annular space water mixing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640032A (en) * | 2017-03-13 | 2017-05-10 | 中国石油大学(华东) | Underground oil-water separation device of ground driving screw rod pump applicable to single packer pipe column |
| CN107676057A (en) * | 2016-08-01 | 2018-02-09 | 中国石油化工股份有限公司 | Chemical industry medicament apparatus and method are noted in the water mixing of self-circulation type oil jacket annular space |
| CN108518202A (en) * | 2018-03-13 | 2018-09-11 | 西南石油大学 | A kind of pit shaft Multifunction pipe-type lubricating element |
| CN110067538A (en) * | 2018-01-24 | 2019-07-30 | 中国石油天然气股份有限公司 | Mix dilute device and flow string |
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2016
- 2016-08-01 CN CN201620833175.5U patent/CN205990901U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676057A (en) * | 2016-08-01 | 2018-02-09 | 中国石油化工股份有限公司 | Chemical industry medicament apparatus and method are noted in the water mixing of self-circulation type oil jacket annular space |
| CN107676057B (en) * | 2016-08-01 | 2024-06-18 | 中国石油化工股份有限公司 | Self-circulation type oil sleeve annulus water mixing chemical agent injection device and method |
| CN106640032A (en) * | 2017-03-13 | 2017-05-10 | 中国石油大学(华东) | Underground oil-water separation device of ground driving screw rod pump applicable to single packer pipe column |
| CN110067538A (en) * | 2018-01-24 | 2019-07-30 | 中国石油天然气股份有限公司 | Mix dilute device and flow string |
| CN108518202A (en) * | 2018-03-13 | 2018-09-11 | 西南石油大学 | A kind of pit shaft Multifunction pipe-type lubricating element |
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