CN110905464A - Pressure balance numerical control blanking plug - Google Patents
Pressure balance numerical control blanking plug Download PDFInfo
- Publication number
- CN110905464A CN110905464A CN201911269154.XA CN201911269154A CN110905464A CN 110905464 A CN110905464 A CN 110905464A CN 201911269154 A CN201911269154 A CN 201911269154A CN 110905464 A CN110905464 A CN 110905464A
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- China
- Prior art keywords
- transmission shaft
- main body
- motor
- valve
- threaded connection
- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 105
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 39
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/14—Obtaining from a multiple-zone well
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
A pressure balance numerical control blanking plug. The device comprises an upper pressure head, a lower pressure head, a transmission shaft main body, a motor sealing main body, a speed reducer, a circuit sealing main body, a motor cabin shell, a motor fixing frame, a thrust bearing, a guide groove, a valve main body, an outer valve sleeve, a transmission shaft positioning sleeve, a travel switch, a vernier slider, an inner valve sleeve, a second transmission shaft, a first transmission shaft, a valve core and a circuit cabin shell; the motor drives the transmission shaft to rotate, the transmission shaft enables the valve core to move at a constant speed, and when the valve core moves to the farthest end, the vernier slider touches the travel switch to enable the motor to stop working; in the water injection process, rivers flow into the valve body from the water injection hole on last pressure head and the transmission shaft main part simultaneously, make the inside pressure of valve body reach balanced, guarantee then that the case accomplishes the control to the flow outlet size under the drive of motor. The invention can ensure that the pressure at the transmission valve of the blanking plug reaches dynamic balance, and solves the problem of blockage rotation of the blanking plug caused by overlarge underground pressure at the valve.
Description
Technical Field
The invention relates to a flow control device applied to the field of petroleum water injection.
Background
Water distributors are commonly used in oilfield production. In the layered water injection process, the water distributor mainly works to inject water into each layer section, the water injection aims at maintaining pressure and displacing oil, and the collection yield of crude oil is improved and the benefit is increased by supplementing and maintaining the pressure of each layer section through water injection. Wherein, the blanking plug is a core part for controlling water distribution pressure and water distribution flow in the water distributor
At present, two water distributor modes are mainly adopted, one mode is a pure mechanical water distributor, the water distribution pressure control is realized by adjusting the size of a mechanical type blanking plug water nozzle, a throwing and fishing device is generally adopted to replace the water nozzle during working, when the water distribution pressure of the layer section does not reach the standard, the water nozzle needs to be frequently replaced for many times, the replacement process is complex, the workload is large, the water distribution efficiency is low, and the water distribution precision is poor. The other type is an electric control blanking plug applied to an intelligent water distributor, the movement of a valve of the blanking plug is controlled by the rotation of a control motor, a water nozzle does not need to be replaced in the working process, the automatic control of the valve of the blanking plug can be realized, accurate water distribution is realized, however, the blanking plug has high requirement on the sealing property, meanwhile, the underground water distribution pressure is high, and particularly at the position of the valve of the blanking plug, the blanking plug is easily influenced by underground high pressure, the phenomenon of rotation blockage occurs, and the adjusting effect is lost.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a pressure balance numerical control blanking plug which can automatically control the blanking plug positioned in an intelligent water distributor, and enables the pressure at a transmission valve of the blanking plug to reach dynamic balance, thereby solving the problem of blockage of the blanking plug caused by overlarge underground pressure at the valve.
The technical scheme of the invention is as follows: the pressure balance numerical control blanking plug comprises an upper pressure head and a lower pressure head, and is characterized in that: the numerical control blanking plug further comprises a transmission shaft main body, a motor sealing main body, a speed reducer, a circuit sealing main body, a motor cabin shell, a motor fixing frame, a thrust bearing, a guide groove, a valve main body, an outer valve sleeve, a transmission shaft positioning sleeve, a travel switch, a vernier slider, an inner valve sleeve, a second transmission shaft, a first transmission shaft, a valve core and a circuit cabin shell.
The inner valve sleeve and the outer valve sleeve are in interference nested fit, and the outer valve sleeve and the valve main body are in interference nested fit; the valve main body is in threaded connection with the upper pressure head; the second transmission shaft uses cross countersunk head screw to be connected with the case, first transmission shaft uses the key-type connection with the second transmission shaft, the second transmission shaft uses threaded connection with the transmission shaft main part, the transmission shaft main part adopts threaded connection with the valve main part, the transmission shaft main part adopts threaded connection with the sealed main part of motor, thrust bearing installs in the sealed main part of motor, and the nestification is on first transmission shaft, inside transmission shaft positioning sleeve uses threaded connection with the transmission shaft main part, first transmission shaft is for pegging graft with the transmission shaft main part, transmission shaft positioning sleeve is connected for the plug bush with first transmission shaft, so that the position of first transmission shaft is fixed.
The vernier sliding block is in threaded connection with the first transmission shaft, and the track groove on the vernier sliding block is sleeved on the track position on the guide groove so as to enable the vernier sliding block to move on a correct track; the travel switch hole on the guide groove corresponds to the position of a travel switch on the transmission shaft positioning sleeve, the spline on the guide groove corresponds to the key position hole on the transmission shaft positioning sleeve, and the guide groove is inserted and sleeved on the transmission shaft positioning sleeve.
The motor sealing main body is respectively in threaded connection with the transmission shaft main body and the motor cabin shell, the motor fixing frame is in threaded connection with the motor cabin shell, the motor fixing frame is used for fixing the speed reducer, the motor and the speed reducer are placed in the motor cabin shell, and the speed reducer is connected with the first transmission shaft through a coupling, so that power transmission is realized.
The circuit sealing main body is respectively in threaded connection with the motor cabin shell and the circuit cabin shell, the circuit cabin shell is in threaded connection with the lower pressure head, and the control circuit and the power supply system are placed in the circuit cabin shell.
The invention has the following beneficial effects:
compared with the existing blanking plug, the blanking plug has different design structures and different transmission modes. The invention realizes the automatic control of pressure and the protection of internal circuits. The blanking plug realizes the automatic control of the flow outlet through the control panel, and reduces the workload of changing the flow by replacing the water nozzle. When the valve core moves to the farthest end and the opening degree of the valve reaches the minimum, the motor automatically stops rotating, so that the control on the automatic stop of the motor is realized, and the whole water distributor circuit is protected; in the water distribution process, water flow enters the interior of the blanking plug from the upper pressure hole and the pressure stabilizing hole simultaneously, so that the pressures on two sides of the valve core are equal, parts at the position of the valve core are protected, and the phenomenon of rotation blockage of the valve core caused by overlarge pressure at the position of the valve core is prevented.
Description of the drawings:
fig. 1 is an assembly schematic of the present invention.
Figure 2 is a block diagram of the core of the present invention.
Fig. 3 is a cross-sectional view of the driving portion of the blanking plug of the present invention.
Fig. 4 is a detail view of the guide groove of fig. 1.
Fig. 5 is a detail view of the drive shaft alignment sleeve of fig. 2.
FIG. 6 is a detail view of the cursor slide of FIG. 2.
Figure 1-upper ram-1; 2-a drive shaft body; 3-a motor seal body; 4-a reducer; 5-a circuit sealing body; 6-an electric motor; 7-motor cabin outer casing; 8, a motor fixing frame; 9-a thrust bearing; 10-a guide groove; 11-a valve body; 12-an outer valve sleeve; 13-a drive shaft locating sleeve; 14-a travel switch; 15-a cursor slider; 16-an inner valve sleeve; 17-a second drive shaft; 18-a first drive shaft; 19-a valve core; 20-circuit compartment housing; 21-lower pressure head; 22-an outlet; 101-a wire guide groove; 102-travel switch hole; 103-track; 104-splines; 131-key holes; 151-track grooves; 201-pressure stabilizing hole.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 3, the pressure balance numerical control blanking plug comprises: the device comprises an upper pressure head 1, a transmission shaft main body 2, a motor sealing main body 3, a speed reducer 4, a circuit sealing main body 5, a motor 6, a motor cabin shell 7, a motor fixing frame 8, a thrust bearing 9, a guide groove 10, a valve main body 11, an outer valve sleeve 12, a transmission shaft positioning sleeve 13, a travel switch 14, a cursor slider 15, an inner valve sleeve 16, a second transmission shaft 17, a first transmission shaft 18 and a valve core 19.
The inflow water enters the flow control valve from the upper pressure head 1, and flows out from an outlet formed by the inner valve sleeve 16, the outer valve sleeve 12 and the valve main body 11 through the control of the size of the outlet by the valve core 19, wherein the inner valve sleeve 16 is in interference nested fit with the outer valve sleeve 12, the outer valve sleeve 12 is in interference nested fit with the valve main body 11, and the valve main body 11 is in threaded connection with the upper pressure head 1. The valve core 19 is controlled by the second transmission shaft 17 and the first transmission shaft 18 together, the second transmission shaft 17 is connected with the valve core 19 by using a cross half-countersunk head screw, the first transmission shaft 18 is connected with the second transmission shaft 17 by using a key, the second transmission shaft 17 is connected with the transmission shaft main body 2 by using a thread, and when the first transmission shaft 18 drives the second transmission shaft 17 to rotate, the second transmission shaft 17 moves forward or backward under the guidance of the thread along with the forward transmission or the reverse rotation of the first transmission shaft 18. Transmission shaft main part 2 adopts threaded connection as the direction shell of second transmission shaft 17 with valve main part 11, and transmission shaft main part 2 adopts threaded connection with motor seal main part 3, and thrust bearing 9 installs on motor seal main part 3, and plug in is on first transmission shaft 18, fixes a position first transmission shaft 18, makes the transmission of first transmission shaft 18 more accurate. The inner transmission shaft positioning sleeve 13 is connected with the transmission shaft main body 2 by screw threads, and the transmission shaft positioning sleeve 13 is connected with the first transmission shaft 18 in a plugging manner so as to fix the position of the first transmission shaft 18. The vernier slider 15 is in threaded connection with the first transmission shaft 18, a rail groove 151 on the vernier slider 15 is sleeved on a rail 103 position on the guide groove 10, so that the vernier slider 15 moves on a correct rail, a travel switch hole 102 on the guide groove 10 corresponds to a travel switch 14 position on the transmission shaft positioning sleeve 13, a spline 104 on the guide groove 10 corresponds to a key hole 131 on the transmission shaft positioning sleeve 13, the guide groove 10 is inserted and sleeved on the transmission shaft positioning sleeve 13, and a lead of the travel switch 14 is arranged through a lead groove 101. When the second transmission shaft 17 drives the valve core 19 to move to the farthest end, the cursor slider 15 stops the motor 6 by touching the travel switch 14 on the transmission shaft positioning sleeve 13, thereby protecting the motor 6. The motor sealing main body 3 is respectively in threaded connection with the transmission shaft main body 2 and the motor cabin shell 7, the motor fixing frame 8 and the motor cabin shell 7 are in threaded connection, the motor fixing frame 8 is used for fixing the speed reducer 4, the motor 6 and the speed reducer 4 are placed in the motor cabin shell 7, and the speed reducer 4 and the first transmission shaft 18 are in coupling connection to achieve power transmission. The circuit sealing main body 5 is respectively in threaded connection with the motor cabin shell 7 and the circuit cabin shell 20, the circuit cabin shell 20 is in threaded connection with the lower pressure head 21, a control circuit and a power supply system are placed in the circuit cabin shell 20, and the water supply flow is controlled by controlling the rotation of the motor 6.
The dynamic balance system is realized by controlling the pressures in the transmission shaft main body 2 and the valve main body 11 to be equal, flowing water respectively enters the cavity formed by the valve core 19, the valve main body 11 and the transmission shaft main body 2 from the water inlet 22 on the upper pressure head 1 and the pressure stabilizing hole 201 on the transmission shaft main body 2, the flowing water simultaneously acts on two sides of the valve core 19, and acting forces are mutually counteracted to ensure that the internal pressure of the valve body is zero, thereby realizing the pressure balance in the control valve and reducing the damage caused by the pressure in the control valve.
The working process of the invention is as follows: the inlet water enters the flow control valve from the upper pressure head, the water flow flows out from the outlet through the control of the valve core on the size of the outlet, the motor rotates to drive the transmission shaft to rotate, the transmission shaft enables the valve core to move at a constant speed, and when the valve core moves to the farthest end, the sliding block touches the travel switch to enable the motor to stop working; in the water injection process, rivers flow into the valve body from the water injection hole on last pressure head and the transmission shaft main part simultaneously, make the inside pressure of valve body reach balanced, guarantee then that the case accomplishes the control to the flow outlet size under the drive of motor.
Claims (1)
1. The utility model provides a pressure balance numerical control blanking plug, includes pressure head (1) and pressure head (21) down, its characterized in that: the numerical control blanking plug further comprises a transmission shaft main body (2), a motor sealing main body (3), a speed reducer (4), a circuit sealing main body (5), a motor (6), a motor cabin shell (7), a motor fixing frame (8), a thrust bearing (9), a guide groove (10), a valve main body (11), an outer valve sleeve (12), a transmission shaft positioning sleeve (13), a travel switch (14), a cursor sliding block (15), an inner valve sleeve (16), a second transmission shaft (17), a first transmission shaft (18), a valve core (19) and a circuit cabin shell (20);
the inner valve sleeve (16) is in interference nested fit with the outer valve sleeve (12), and the outer valve sleeve (12) is in interference nested fit with the valve main body (11); the valve main body (11) is in threaded connection with the upper pressure head (1); the second transmission shaft (17) is connected with the valve core (19) through a cross half countersunk head screw (22), the first transmission shaft (18) is in key connection with the second transmission shaft (17), the second transmission shaft (17) is in threaded connection with the transmission shaft main body (2), the transmission shaft main body (2) is in threaded connection with the valve main body (11), the transmission shaft main body (2) is in threaded connection with the motor sealing main body (3), the thrust bearing (9) is installed on the motor sealing main body (3) and is embedded on the first transmission shaft (18), the inner transmission shaft positioning sleeve (13) is in threaded connection with the transmission shaft main body (2), the first transmission shaft (18) is in plug-in connection with the transmission shaft main body (2), and the transmission shaft positioning sleeve (13) is in plug-in connection with the first transmission shaft (18) so that the position of the first transmission shaft (18) is fixed;
the vernier sliding block (15) is in threaded connection with the first transmission shaft (18), and a track groove (151) on the vernier sliding block (15) is sleeved on a track (103) position on the guide groove (10) so that the vernier sliding block (15) moves on a correct track; a travel switch hole (102) on the guide groove (10) corresponds to the position of a travel switch (14) on the transmission shaft positioning sleeve (13), a spline (104) on the guide groove (10) corresponds to a key hole (131) on the transmission shaft positioning sleeve (13), and the guide groove (10) is inserted and sleeved on the transmission shaft positioning sleeve (13);
the motor sealing main body (3) is respectively in threaded connection with the transmission shaft main body (2) and the motor cabin shell (7), the motor fixing frame (8) is in threaded connection with the motor cabin shell (7), the motor fixing frame (8) is used for fixing the speed reducer (4), the motor (6) and the speed reducer (4) are placed in the motor cabin shell (7), and the speed reducer (4) is in shaft coupling connection with the first transmission shaft (18) to realize power transmission;
the circuit sealing main body (5) is respectively in threaded connection with the motor cabin shell (7) and the circuit cabin shell (20), the circuit cabin shell (20) is in threaded connection with the lower pressure head (21), and a control circuit and a power supply system are placed in the circuit cabin shell (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269154.XA CN110905464B (en) | 2019-12-11 | 2019-12-11 | Pressure balance numerical control blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269154.XA CN110905464B (en) | 2019-12-11 | 2019-12-11 | Pressure balance numerical control blanking plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110905464A true CN110905464A (en) | 2020-03-24 |
| CN110905464B CN110905464B (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911269154.XA Expired - Fee Related CN110905464B (en) | 2019-12-11 | 2019-12-11 | Pressure balance numerical control blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110905464B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110024123A1 (en) * | 2009-07-31 | 2011-02-03 | Baker Hughes Incorporated | Esp for perforated sumps in horizontal well applications |
| CN103510906A (en) * | 2013-10-21 | 2014-01-15 | 东北石油大学 | Adjustable variable-differential-pressure constant-flow blanking plug |
| CN104514540A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Electric seal examining method for bridge eccentric separated injection |
| CN205714139U (en) * | 2016-04-27 | 2016-11-23 | 于世江 | A kind of water injection well intelligent radio water dispensing apparatus |
| CN109372481A (en) * | 2018-10-30 | 2019-02-22 | 中国石油天然气股份有限公司 | It is a kind of intelligence laminated distributor under well well testing distributor and flow automatically control and test macro |
| CN210105831U (en) * | 2019-04-29 | 2020-02-21 | 大庆宝合石油科技有限公司 | Novel constant-current blanking plug |
-
2019
- 2019-12-11 CN CN201911269154.XA patent/CN110905464B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110024123A1 (en) * | 2009-07-31 | 2011-02-03 | Baker Hughes Incorporated | Esp for perforated sumps in horizontal well applications |
| CN104514540A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Electric seal examining method for bridge eccentric separated injection |
| CN103510906A (en) * | 2013-10-21 | 2014-01-15 | 东北石油大学 | Adjustable variable-differential-pressure constant-flow blanking plug |
| CN205714139U (en) * | 2016-04-27 | 2016-11-23 | 于世江 | A kind of water injection well intelligent radio water dispensing apparatus |
| CN109372481A (en) * | 2018-10-30 | 2019-02-22 | 中国石油天然气股份有限公司 | It is a kind of intelligence laminated distributor under well well testing distributor and flow automatically control and test macro |
| CN210105831U (en) * | 2019-04-29 | 2020-02-21 | 大庆宝合石油科技有限公司 | Novel constant-current blanking plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110905464B (en) | 2020-07-28 |
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Granted publication date: 20200728 |