CN106812514A - A kind of waterpower low-frequency vibration improves device and its application of oil recovery factor - Google Patents
A kind of waterpower low-frequency vibration improves device and its application of oil recovery factor Download PDFInfo
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- CN106812514A CN106812514A CN201710198960.7A CN201710198960A CN106812514A CN 106812514 A CN106812514 A CN 106812514A CN 201710198960 A CN201710198960 A CN 201710198960A CN 106812514 A CN106812514 A CN 106812514A
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- vertical
- relief port
- pipe
- oil recovery
- recovery factor
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Classifications
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods 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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Abstract
The present invention relates to device and its application that a kind of waterpower low-frequency vibration improves oil recovery factor, including：Dynamical system includes driving the power source of rotor-support-foundation system rotation；Rotor-support-foundation system includes that the vertical horizontal rotating disc for rotating ttom of pipe end is managed and be arranged on to vertical rotation, and vertical rotation be provided with runner on bottom of the tube and horizontal rotating disc, vertically rotates in pipe and can be used for the flowing of liquid medium；Vibration system includes vertical separation tubing string and the annular weight being arranged in vertical separation tubing string, and annular weight can be realized moving up and down under the pressure of liquid medium；The bottom of stator system is provided with runner, can realize communicating with the runner on horizontal rotating disc, for the discharge of liquid medium.Vibration frequency of the invention can by motor speed control, vibration power by ground infusion liquid Stress control, both independent controls do not interfere with each other；Can be separately placed among pit shaft by original oil pipe, it is not necessary to clear up tubing string, both can be done directly on needs stratum to be processed, and subsequent production is facilitated again.
Description
Technical field
The present invention relates to device and its application that a kind of waterpower low-frequency vibration improves oil recovery factor, belong to Reservoir Crude Oil and carry
High recovery rate technical field.
Background technology
As China's oil, the construction of natural gas fields deepen continuously, LOW PERMEABILITY RESERVOIR has become the important of petroleum industry development
Potentiality, but the later stage under development is because hypotonic, ultralow permeable reservoir permeability is extremely low, natural microcrack development, generally existing water
Alter it is serious, yield poorly, exploitation effect it is poor.Therefore, need badly auxiliary development technological means improve oil reservoir inside crude oil development degree and
Recovery ratio.
Low-frequency vibration is recovered the oil as a kind of new physics oil production method, using artificial vibration by energy with Low-Frequency Mechanical ripple
Form directly or indirectly act on stratum, by vibration wave stratum propagation, the physics for making reservoir different with fluid generation
And chemical change, improve oil reservoir seepage flow condition, reach oil-water well increasing yield and injection purpose.The method by its pollution-free, low cost,
The features such as instant effect, strong adaptability, process is simple, all achieves preferable development effectiveness in a series of filed application.With this
Meanwhile, the application of low-frequency fluctuation oil recovery technique is also gradually developed from monotechnics to complex technique, such as compound on vibration at present
Chemical plugging technology, vibration complexed surfactant technology of reservoir sweep, compound viscous crude steam viscosity reduction (or catalytic viscosity reduction) technology of vibration,
Compound acid fracturing yield-increasing technology of vibration etc. achieves certain progress in terms of theoretical and experimental study.Oil worker is directed to the skill
The mechanism of action, corollary equipment, construction technology of art etc. have carried out a series of theoretical and experimental study.
However, the low-frequency vibration equipment following drawback of generally existing that mining site is applied at present：Equipment is complicated, operation inconvenience；
Occupy mining site floor area larger, particularly vibration equipment；Tubing string in cleaning well is needed during operation, subsequent production is influenceed；Cannot
Real-time adjustment job parameter (vibration frequency, Oscillation Amplitude etc.).
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of simple structure, installs and lay convenient, reliable working performance,
And can realize that the waterpower low-frequency vibration of vibration parameters adjustment immediately improves the device of oil recovery factor.
The present invention also provides a kind of operating method that oil recovery factor is improved using said apparatus.
Technical scheme is as follows：
A kind of waterpower low-frequency vibration improves the device of oil recovery factor, including dynamical system, rotor-support-foundation system, vibration system and
Stator system, wherein：
Dynamical system, is arranged in stator system, including drives the power source of rotor-support-foundation system rotation；
Rotor-support-foundation system, is arranged in stator system, including the vertical level for rotating pipe and being arranged on vertical rotation ttom of pipe end
Rotating disk, vertical rotation be provided with runner on bottom of the tube and horizontal rotating disc, and vertical rotation in pipe can be used for the flowing of liquid medium；
Vibration system, is arranged in stator system, including vertical separation tubing string and the ring that is arranged in vertical separation tubing string
Shape weight, annular weight can be realized moving up and down under the pressure of liquid medium；
The bottom of stator system is provided with runner, can realize communicating with the runner on horizontal rotating disc, for liquid medium
Discharge.
Preferably, the power source selects motor, motor to be connected with vertical rotation pipe.
Preferably, the motor is connected by gear train with vertical rotation pipe.
Preferably, the vertical top for rotating pipe is connected by swivel with oil pipe.This design is advantageous in that, leads to
Cross swivel, can effectively prevent oil pipe from relatively rotating in vertical rotation while pipe is rotated, it is to avoid oil pipe occur to twist around.
Preferably, the top of the vertical separation tubing string is set to an oblique impact face, is provided with annular weight and inclined
The adaptable inclined plane of oblique striking face.
Preferably, the slanted angle in the oblique impact face is 10-45 °.
Preferably, when inclined plane is contacted with oblique impact face, the top of annular weight and the top of vertical separation tubing string
Leave space.The advantage of this design is, when annular weight moves up shock vertical separation tubing string, can be by whole power
Amount is acted on oblique impact face, is then faced out by oblique impact and vibration is spread to horizontal well, in hgher efficiency.
Preferably, the vertical bottom for rotating pipe is provided with six rectangles and enters head piece, the vertical separation tubing string bottom
Enter head piece identical with six rectangles six rectangles be highly distributed with to go out head piece.This design is advantageous in that, when vertical rotation is managed
During rotation, it is possible to achieve six rectangles enter head piece and six rectangles go out the connection of head piece.
Preferably, outer relief port interior relief port and six circles in is provided with six circles on the horizontal rotating disc, its
In in six circles interior relief port be located at it is vertical rotate pipe inner side, outer relief port is located at vertical rotation on the outside of pipe in six circles.
Preferably, the stator system includes a shell, the interior earial drainage in the case where the bottom of the shell is provided with six circles
Outer relief port under mouth and six circles, the circular lower interior relief port in the vertical direction of six of which can be with interior earial drainage in six circles
Salty conjunction, outer relief port in the vertical direction can overlap with outer relief port in six circles under six circles.
Preferably, stomata is provided with the shell, stomata is located at oblique impact face lower section.
Preferably, a support plate is provided with the vertical separation tubing string, support plate is located at annular weight lower section and support
The center of disk is provided with a through hole, and six circular communication ports are distributed with the same circumference on the outside of through hole.
A kind of waterpower low-frequency vibration improves the operating method of the device of oil recovery factor, comprises the following steps：
(1) device of the raising oil recovery factor is transferred to oil reservoir position to be dealt with and is fixed, connect ground
Power supply；
(2) trandfer fluid in pipe is rotated to vertical, startup power supply, motor drives the vertical pipe that rotates to rotate, when vertical rotation
Pipe turns to certain angle, and rectangle enters head piece and go out head piece with rectangle to connect, and now circular upper outer relief port and it is circular under leak
Head piece interlocks closure, in circle in relief port with it is circular it is lower in relief port interlock closure, fluid by it is vertical rotate manage, rectangle enters
Head piece, rectangle go out head piece, circular communication port, promote annular weight to move upwards, clash into oblique impact face；
(3) motor persistently drives the vertical pipe that rotates to rotate, when the vertical pipe that rotates turns to certain angle, rectangle enter head piece and
Rectangle goes out head piece and interlocks closure, and now circular upper outer relief port is connected with circular lower outer relief port, in circle interior relief port and
Relief port connection in circle is lower, the fluid under annular weight is under annular weight and the Action of Gravity Field of itself by being leaked in circle
Outer relief port discharge under head piece, circle, interior relief port is arranged under vertically the fluid in rotation pipe passes through the upper interior relief port of circle, circle
Go out.
The beneficial effects of the present invention are：
1. apparatus of the present invention simple structure, reasonable in design, installs and easy to operate, and input cost is relatively low, and ground installation is few,
Floor space is small.
2. apparatus of the present invention are placed among pit shaft by original oil pipe, it is not necessary to clear up tubing string, can both be directly acted on
Stratum to be processed is needed, subsequent production is facilitated again.
3. the vibration frequency in apparatus of the present invention can be by ground infusion liquid by motor speed control, vibration power
Stress control, and both can not interfere with each other with independent control.
Brief description of the drawings
Fig. 1 is the cross-sectional view that the present invention improves oil recovery factor device；
Fig. 2 is the vertical structural representation for rotating pipe and horizontal rotating disc part in the present invention；
Fig. 3 is the sectional view in A-A directions in Fig. 1；
Fig. 4 is the structural representation of support plate in the present invention；
Wherein：1st, motor；2nd, gear train；3rd, swivel；4th, cable；5th, it is vertical to rotate pipe；6th, horizontal rotating disc；7th, rectangle
Enter head piece；8th, interior relief port in circle；9th, outer relief port in circle；10th, high pressure shell；11st, vertical separation tubing string；12nd, level
Division surface；13rd, support plate；14th, oblique impact face；15th, circular lower interior relief port；16th, circular lower outer relief port；17th, rectangle goes out
Head piece；18th, circular communication port；19th, annular weight.
Specific embodiment
Below by embodiment and with reference to accompanying drawing, the present invention will be further described, but not limited to this.
Embodiment 1：
As shown in Figures 1 to 4, the present embodiment provides the device that a kind of waterpower low-frequency vibration improves oil recovery factor, including
Dynamical system, rotor-support-foundation system, vibration system and stator system, wherein：
Dynamical system, is arranged in stator system, including drives the power source of rotor-support-foundation system rotation；
Rotor-support-foundation system, is arranged in stator system, including the vertical level for rotating pipe and being arranged on vertical rotation ttom of pipe end
Rotating disk, vertical rotation be provided with runner on bottom of the tube and horizontal rotating disc, and vertical rotation in pipe can be used for the flowing of liquid medium；
Vibration system, is arranged in stator system, including vertical separation tubing string and the ring that is arranged in vertical separation tubing string
Shape weight, annular weight can be realized moving up and down under the pressure of liquid medium；
The bottom of stator system is provided with runner, can realize communicating with the runner on horizontal rotating disc, for liquid medium
Discharge.
In the present embodiment, stator system include a high pressure shell 10, power source select motor 1, motor 1 by cable 4 with
Ground power supply is connected, and motor 1 is connected by gear train 2 with vertical rotation pipe 5, i.e. the active of output shaft connection one of motor 1
Gear, driven gear is provided with the vertical periphery for rotating pipe 5, and driving gear is meshed with driven gear, so as to realize motor 1
The vertical pipe 5 that rotates is driven to rotate.The vertical top for rotating pipe 5 is connected by swivel 3 with oil pipe, and swivel 3 includes upper
Lower two ring flanges, bearing is provided between two ring flanges, and the vertical pipe that rotates is connected with bearing inner race, outside oil pipe and bearing
Circle connection, so motor drive it is vertical rotate pipe and rotate when, oil pipe will not relatively rotate do not result in oil pipe twist around.
Vertical pipe 5 and the horizontal rotating disc 6 of rotating is structure as a whole design, and the bottom of vertical rotation pipe 5 is axially arranged to have six rectangles to become a mandarin
Mouthfuls 7, outer relief port 9 interior relief port 8 and six circles in is provided with six circles on horizontal rotating disc 6, on six of which is circular
Interior relief port 8 is located at the vertical inner side of rotation pipe 5, and outer relief port 9 is located at vertical rotation on the outside of pipe 5 in six circles.Outside high pressure
The bottom of shell 10 is provided with six circles outer relief port 16 under interior relief port 15 and six circles, six of which it is circular it is lower in lets out
The in the vertical direction of head piece 15 can overlap (when horizontal rotating disc rotates to certain angle), six with interior relief port 8 in six circles
The individual circular lower in the vertical direction of outer relief port 16 can overlap with outer relief port 9 in six circles.
Vertical separation tubing string 11 in high pressure shell 10 is circumferentially positioned at around vertical rotation pipe 5, is vertically being rotated
Annular weight 19 (Fig. 1 is longitdinal cross-section diagram) and support plate 13 are provided with tubing string 11, support plate 13 is located under annular weight 19
Vertical separation tubing string 11 is divided into upper and lower two parts by side, support plate 13, and upper and lower two parts pass through six opened up in support plate 13
Circular communication port 18 is connected (as shown in Figure 4), and the center of support plate 13 is provided with and rotates the through hole that pipe 5 is passed through, six circles for vertical
Shape communication port 18 is distributed on the same circumference on the outside of through hole.Separately it is provided with and six rectangles in the bottom of vertical separation tubing string 11
Enter the identical of head piece 7 six rectangles be highly distributed with to go out head piece 17.When motor 1 drives vertical rotation pipe 5 to rotate, it is possible to achieve
Six rectangles enter head piece 7 and six rectangles and go out the connecting of head piece 17 (when the vertical pipe that rotates rotates to that rectangle enters head piece and rectangle goes out
When the phase distribution of head piece is consistent).
The top of vertical separation tubing string 11 is set to an oblique impact face 14, and it is 10 °, ring with the slanted angle of horizontal plane
The inclined plane being adapted with oblique impact face 14 is provided with shape weight 19.When inclined plane is contacted with oblique impact face, annular
Space is left with the top of vertical separation tubing string 11 in the top of weight 19.When annular weight 19 moves up shock vertical separation pipe
During post 11, whole strength can be acted on oblique impact face 14, outwards horizontal well is expanded by oblique impact face 14 then
Vibration is dissipated, it is in hgher efficiency.
The device of the present embodiment makes it act on oblique impact periodically using the pressure-driven annular weight of fluid (water)
Face, and then vibration is passed into reservoir, reach the effect for improving recovery ratio.The device can be by adjusting the pumping pressure of flow media
Power, decentralization depth of device etc. control the shock power of weight, drive the vertical rotating speed for rotating pipe to control to shake by regulation motor
Hit frequency.The present apparatus is reasonable in design, perfect in shape and function and good using easy to operate, action effect, compensate for conventional low-frequency vibration dress
Put the deficiencies such as ground installation complicated, vibration frequency and oscillation power regulation inconvenience, popularization to low-frequency resonant ripple oil recovery technique and
Using significant.
Embodiment 2：
A kind of waterpower low-frequency vibration improves the device of oil recovery factor, and as described in Example 1, its difference exists structure
In：Oblique impact face 14 is 45 ° with the slanted angle of horizontal plane, correspondingly the angle of inclination of the inclined plane on annular weight 19
It is 45 °.
Embodiment 3：
A kind of waterpower low-frequency vibration improves the device of oil recovery factor, and as described in Example 1, its difference exists structure
In：Stomata is provided with high pressure shell 10, stomata is located at oblique impact face lower section.Oblique impact is being clashed into upwards when annular weight
During face, the phenomenon of feeling suffocated that vertical separation tubing string inner chamber air pressure can be avoided to raise and occurred.
Embodiment 4：
A kind of waterpower low-frequency vibration improves the operating method of the device of oil recovery factor, using the device described in embodiment 3,
Comprise the following steps：
(1) device of the raising oil recovery factor is transferred to oil reservoir position to be dealt with and is fixed, connect ground
Power supply；
(2) trandfer fluid in pipe 5 is rotated to vertical, fluid is water in the present embodiment, startup power supply, motor 1 drives vertically
Rotate pipe 5 to rotate, when the vertical pipe 5 that rotates turns to certain angle, rectangle enters head piece 7 and go out head piece 17 with rectangle to connect, and now
Outer relief port 9 and circular lower outer relief port 16 are interlocked and are blocked in circle, and interior relief port 8 interior relief port 15 lower with circle is handed in circle
Mistake closure, water enters head piece 7, rectangle and goes out head piece 17, circular communication port 18 by vertical rotation pipe 5, rectangle, promotes annular weight 19
Motion upwards, clashes into oblique impact face 14；
(3) motor 1 persistently drives the vertical pipe 5 that rotates to rotate, and when the vertical pipe 5 that rotates turns to certain angle, rectangle becomes a mandarin
Mouth 7 and rectangle go out head piece 17 and staggeredly block, and now circular outer relief port 9 is connected with circular lower outer relief port 16, in circle
Relief port 15 is connected in interior relief port 8 is lower with circle, and the water under annular weight 19 is under annular weight and the Action of Gravity Field of itself
Discharged by outer relief port 9, circular lower outer relief port 16 in circle, vertically rotate the water in pipe 5 by circular interior relief port
8th, circular lower interior relief port 15 is discharged.
In addition, during actual job, can by adjust the pumping pressure of flow media, the decentralization depth of device come
The shock power of the annular weight of control, vibration frequency can be controlled by the rotating speed of regulation motor rotor driven.
Assuming that the external diameter of annular weight is R, internal diameter is r, and quality is W, and device is placed in underground, and depth is H, and flowing is situated between
Matter is water, and density is ρ, and fluid is P by ground pumping pressure1, the pressure loss of fluid mainly includes that ground tubing string presses consumption, in well
Tubing string pressure consumption, device inside pressure consumption etc..Overall pressure consumption coefficient is α, then the active force of each waterpower vibration can be expressed as：
F=(P1+ρgH)×(1-α)×π×(R2-r2)-Wg
Assuming that uniformly opening m rectangle in vertical rotation bottom of the tube enters head piece, while thinking vertically to turn in the case where motor drives
Dynamic pipe rotation n circles per minute, then vibration frequency per second can be expressed as：
F=m × n/60.
Claims (10)
1. a kind of waterpower low-frequency vibration improves the device of oil recovery factor, it is characterised in that including dynamical system, rotor-support-foundation system,
Vibration system and stator system, wherein：
Dynamical system, is arranged in stator system, including drives the power source of rotor-support-foundation system rotation；
Rotor-support-foundation system, is arranged in stator system, including the vertical horizontal rotating disc for rotating pipe and being arranged on vertical rotation ttom of pipe end,
Vertical rotation be provided with runner on bottom of the tube and horizontal rotating disc, and vertical rotation in pipe can be used for the flowing of liquid medium；
Vibration system, is arranged in stator system, including vertical separation tubing string and be arranged in vertical separation tubing string annular weight
Hammer, annular weight can be realized moving up and down under the pressure of liquid medium；
The bottom of stator system is provided with runner, can realize communicating with the runner on horizontal rotating disc, for the discharge of liquid medium.
2. waterpower low-frequency vibration as claimed in claim 1 improves the device of oil recovery factor, it is characterised in that the power source
From motor, motor is connected with vertical rotation pipe.
3. waterpower low-frequency vibration as claimed in claim 2 improves the device of oil recovery factor, it is characterised in that the motor leads to
Gear train is crossed to be connected with vertical rotation pipe.
4. waterpower low-frequency vibration as claimed in claim 1 improves the device of oil recovery factor, it is characterised in that described vertical point
The top of pipe post is set to an oblique impact face, and the inclined plane being adapted with oblique impact face is provided with annular weight；
The slanted angle in the oblique impact face is 10-45 °.
5. waterpower low-frequency vibration as claimed in claim 4 improves the device of oil recovery factor, it is characterised in that when inclined plane with
When oblique impact face contacts, space is left in the top of annular weight with the top of vertical separation tubing string.
6. waterpower low-frequency vibration as claimed in claim 1 improves the device of oil recovery factor, it is characterised in that described vertical turn
The bottom of dynamic pipe is provided with six rectangles and enters head piece, and the vertical separation tubing string bottom enters head piece identical highly with six rectangles
Six rectangles are distributed with and go out head piece.
7. waterpower low-frequency vibration as claimed in claim 4 improves the device of oil recovery factor, it is characterised in that the level turns
Be provided with six circles outer relief port in interior relief port and six circles on disk, six of which it is circular it is upper in relief port be located at and hang down
Straight to rotate pipe inner side, outer relief port is located at and vertically rotate pipe outside in six circles；
The stator system includes a shell, interior relief port and six circles in the case where the bottom of the shell is provided with six circles
Lower outer relief port, the circular lower interior relief port in the vertical direction of six of which can overlap with interior relief port in six circles, six
The lower outer relief port in the vertical direction of circle can overlap with outer relief port in six circles.
8. waterpower low-frequency vibration as claimed in claim 7 improves the device of oil recovery factor, it is characterised in that on the shell
Stomata is provided with, stomata is located at oblique impact face lower section.
9. waterpower low-frequency vibration as claimed in claim 1 improves the device of oil recovery factor, it is characterised in that described vertical point
A support plate is provided with pipe post, support plate is located at annular weight lower section and the center of support plate and is provided with a through hole, in through hole
Six circular communication ports are distributed with the same circumference in outside.
10. a kind of waterpower low-frequency vibration as described in claim any one of 1-9 improves the operation side of the device of oil recovery factor
Method, comprises the following steps：
(1) device of the raising oil recovery factor is transferred to oil reservoir position to be dealt with and is fixed, connect ground power supply；
(2) trandfer fluid in pipe is rotated to vertical, startup power supply, motor drives the vertical pipe that rotates to rotate, when the vertical pipe that rotates turns
Move certain angle, rectangle enters head piece and go out head piece with rectangle to connect, and now circular upper outer relief port and outer relief port under circle
Staggeredly block, in circle in relief port with it is circular lower in relief port interlock closure, fluid by it is vertical rotate manage, rectangle becomes a mandarin
Mouth, rectangle go out head piece, circular communication port, promote annular weight to move upwards, clash into oblique impact face；
(3) motor persistently drives the vertical pipe that rotates to rotate, and when the vertical pipe that rotates turns to certain angle, rectangle enters head piece and rectangle
Go out head piece to interlock closure, and now circular upper outer relief port is connected with circular lower outer relief port, interior relief port and circle in circle
Relief port connection in lower, the fluid under annular weight is under annular weight and the Action of Gravity Field of itself by outer earial drainage in circle
Outer relief port discharge under mouth, circle, interior relief port is arranged under vertically the fluid in rotation pipe passes through the upper interior relief port of circle, circle
Go out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198960.7A CN106812514B (en) | 2017-03-29 | 2017-03-29 | A kind of waterpower low-frequency vibration improves device and its application of oil recovery factor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198960.7A CN106812514B (en) | 2017-03-29 | 2017-03-29 | A kind of waterpower low-frequency vibration improves device and its application of oil recovery factor |
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| CN106812514A true CN106812514A (en) | 2017-06-09 |
| CN106812514B CN106812514B (en) | 2018-12-25 |
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| Publication number | Publication date |
|---|---|
| CN106812514B (en) | 2018-12-25 |
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Application publication date: 20170609 Assignee: Xi'an Kaiyuan Drilling Engineering Co., Ltd Assignor: China University of Petroleum (East China) Contract record no.: X2020980005914 Denomination of invention: A device for enhancing oil recovery by hydraulic low frequency vibration and its application Granted publication date: 20181225 License type: Common License Record date: 20200910 |
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