CN1619097A - Method of regulating layered water distribution using pressure wave - Google Patents
Method of regulating layered water distribution using pressure wave Download PDFInfo
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- CN1619097A CN1619097A CN 200410061228 CN200410061228A CN1619097A CN 1619097 A CN1619097 A CN 1619097A CN 200410061228 CN200410061228 CN 200410061228 CN 200410061228 A CN200410061228 A CN 200410061228A CN 1619097 A CN1619097 A CN 1619097A
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- pressure
- injection well
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- downhole flow
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 238000002347 injection Methods 0.000 claims abstract description 70
- 239000007924 injection Substances 0.000 claims abstract description 70
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Abstract
The method for regulating and controlling layer water distribution by using pressure wave relates to layer water distribution operation in water injection well of oil field. Said method is characterized by adopting the following measures: using high-pressure water produced by ground high-pressure pump as pressure source, arranging pressure-controlled water distributors capable of receiving ground pressure signals, coding said pressure signals, making program for receiving and executing these signals, placing water injection pipe into injection well, operating pressure source and valve mounted on the wellhead equipment to produce water-carrying area change.
Description
Technical field:
The present invention relates to the operation of layering water distribution in the water injection well in oil fields.
Background technology:
The oil-field flooding displacement of reservoir oil exploitation middle and later periods needs at each interval distribution of remaining oil situation each oil layer section to be carried out water distribution, makes each oil layer section be adjusted to suitable degree because of the power that water filling obtains by rational layering water distribution, thereby improves oil well yield.
Displacement of reservoir oil by filling water is to realize by the water injection well that adjacent interval with oil well communicates.Be provided with a water injection string in water injection well, this tubing string is made up of water injection pipe, packer, injection well downhole flow regulator etc., is separated by packer between each interval, and injection well downhole flow regulator is contained on the water injection pipe between the packer, is adorning the water with a certain aperture in the blanking plug on the injection well downhole flow regulator and is chewing.The layering water distribution is exactly to chew by the water of changing different apertures, and water injection rate is changed.
The method of the current layering water distribution of adopting, implement by the pulling operation: operating personnel arrive special tool in the interval that needs replacing water to chew by relevant device to water injection string under well head, blanking plug on this place's injection well downhole flow regulator taken off pull ground out, replacing water is chewed, and renders to this place again and installs.
Because pulling operation technique complexity, difficulty of construction are big, add factors such as well depth and fouling, the repeatedly unsuccessful situation of pulling operation is happened occasionally, and the replacing that each interval water is chewed must be carried out one by one.Thereby layering water distribution task difficulty is big, long construction period.
Summary of the invention:
Purpose of the present invention provides a kind of alternative pulling operation, thereby realizes the method for layering water distribution with each interval injection well downhole flow regulator discharge area, compression wave regulation and control down-hole on ground, reaches both simple and easy, improves water distribution usefulness again.
The method that realizes above-mentioned purpose is:
According to the interval quantity of water injection well needs water distribution, one group of voltage-controlled injection well downhole flow regulator that can receive the ground pressure signal is respectively set the pressure signal coding of position and action, the program that receives and carry out these signals is set;
The water injection pipe that the voltage-controlled injection well downhole flow regulator that possesses above-mentioned setting is housed is lowered in the well, and makes that each injection well downhole flow regulator is positioned at corresponding interval on it;
Make pressure source with the water under high pressure that the ground high-pressure pump produces,, the voltage-controlled injection well downhole flow regulator on the interval of the needs adjustment water yield is sent and the corresponding pressure code signal of its action, make it to produce the variation of discharge area by the valve on operating pressure source and the wellhead assembly.
Voltage-controlled injection well downhole flow regulator of the present invention is made up of pressure sensor 1, control circuit 2, motor 3, gate mechanism 4, sees Fig. 2.Be composed of program in the control circuit, can judge that pressure signal that pressure sensor receives is whether identical with the set pressure signal coding of this injection well downhole flow regulator and send the corresponding action instruction according to the information that coding transmits; Motor just or counter-rotating and the revolution or the angle of changeing regulation, drives the gate mechanism action and the discharge area is increased or dwindles under the control of action command.
Described pressure coding is taked by address code and action code combined.
Described pressure signal is the various pressure waveforms that are made of pressure and time.
The described water injection string that voltage-controlled injection well downhole flow regulator is housed is that the corresponding interval place between the packer on the existing water injection string 5 is provided with voltage-controlled injection well downhole flow regulator P respectively
1, P
2, P
3Constitute, see Fig. 1.
Water under high pressure is connected with wellhead assembly by pipeline during work, and the valve on operate high pressure pump and the wellhead assembly produces pressure to be changed, and forms code signal.
Open the valve on pressure source and the wellhead assembly, pressure signal is sent to the voltage-controlled injection well downhole flow regulator of each interval, and the pressure sensor of each injection well downhole flow regulator enters the information capture program after receiving the signal call.The well head workman produces the code signal of arranging mutually with each voltage-controlled injection well downhole flow regulator of down-hole by the waveform operation of setting that is made of pressure and time.When a certain coding that the signal that receives when voltage-controlled injection well downhole flow regulator is set with oneself was identical, control circuit made motor send instruction by code signal, drove gate mechanism and carried out corresponding actions, perhaps opened greatly or turned down.
During layering water distribution operation, the well head operative employee presses constructure scheme, and the voltage-controlled injection well downhole flow regulator to the interval of needs adjustment sends corresponding pressure code signal respectively, and full well water distribution construction is promptly accused and finished.
Advantage of the present invention:
1. utilize the ground existing equipment to encode, carry out remote control in the face of each water injection rate of interval of down-hole with being implemented in, greatly reduced existing difficulty of carrying out the layering water distribution, reduce operating personnel, simplified implement with the pulling operation by pressure.
2. operate simple and easy, convenient and high efficiency, reliable for effect.
Description of drawings:
Fig. 1 is the schematic diagram that the water injection string of voltage-controlled injection well downhole flow regulator is housed;
Fig. 2 is the structural representation that is contained in the voltage-controlled injection well downhole flow regulator on the water injection string;
Fig. 3 is the water injection well schematic diagram that is provided with the water injection string with voltage-controlled injection well downhole flow regulator;
Fig. 4 is voltage-controlled injection well downhole flow regulator P
1Open the pressure waveform figure of the 1st grade of pairing coding;
Fig. 5 is voltage-controlled injection well downhole flow regulator P
2Open the pressure waveform figure of the 15th grade of pairing coding;
Fig. 6 is voltage-controlled injection well downhole flow regulator P
3Close the pressure waveform figure of pairing coding.
The specific embodiment:
Is that the invention will be further described for example below in conjunction with Fig. 1, Fig. 3, Fig. 4 with the water injection well of three need control intervals.
To the voltage-controlled injection well downhole flow regulator of forming by pressure sensor, control circuit, motor, gate mechanism, by injection well downhole flow regulator interval that will place and the various discharge areas that need to realize, establishment is provided with the program that receives and carry out described coding by address code and the combined coding of action code in control circuit.
This example will be to placing the injection well downhole flow regulator P at Fig. 3 interval 1, interval 2, interval 3 places
1, P
2, P
3The coding that is provided with adopts seven binary system government establishments laws, and front three is an address code, and back four is action code, and a kind of address code and multiple action code are combined, to realize the multiple water grade of crossing of an injection well downhole flow regulator.The action code that this example adopted has 16 kinds, and from 0000～1111, wherein 0000 is the action code of closing, and opens the action code of 15 gears from 0001～1111 for the injection well downhole flow regulator gate.
Set: P
115 gears opening be encoded to 0010001,0010010,0010011,
0011111
P
1The rock sign indicating number of closing is 0010000
0101111
P
2That closes is encoded to 0100000
0111111
P
3That closes is encoded to 0110000
The shared time of each code name is 5 minutes in the coding, and pressure＞5MPa is " 1 ", and＜5MPa is " 0 ".
In the above-mentioned coding, with P
10010001, P
20101111, P
30110000 be example, draw oscillogram, see Fig. 4, Fig. 5, Fig. 6.
When water injection well is constructed, the voltage-controlled injection well downhole flow regulator P of above-mentioned setting will have been finished
1, P
2, P
3Be installed to as shown in Figure 1 between water injection pipe 6 upper packers 5 according to the interval that respectively sets, be lowered in the water injection well 7, the corresponding corresponding interval of each voltage-controlled injection well downhole flow regulator is referring to Fig. 3.
In the time will carrying out the water distribution operation, utilize the ground high-pressure pump to produce pressure, the water injection rate definite according to constructure scheme, by respective coding waveform operation wellhead assembly valve, signal is sent to each voltage-controlled injection well downhole flow regulator, make its gate be in corresponding position, finish layering water distribution operation.
Below to open voltage-controlled injection well downhole flow regulator P
1The 1st grade of transmission for example explanation pressure coding.
P
1Open the 1st grade be encoded to 0010001, oscillogram is seen Fig. 4.
Before sending each group coding signal, add send out that a force value is that 5MPa is above, the time is 1 minute synchronizing signal, T represents among Fig. 4.
Operation produces the high-pressure pump and the wellhead assembly valve of water under high pressure:
1. the transmission synchronizing signal is added to well head pressure more than the 5MPa, keeps returning after 1 minute dropping to＜5MPa pressure.
2. send 0 signal rose under＜5MPa pressure and keeps 5 minutes again, voltage-controlled injection well downhole flow regulator P on the 5th minute
1At this moment detected pressure＜5MPa receives 0 signal.
3. send 0 signal and kept 5 minutes from the 10th minute with＜5MPa pressure, second 0 signal receives.
4. send 1 signal from the 15th minute, be raised to pressure more than the 5MPa and kept the voltage-controlled injection well downhole flow regulator P of down-hole 5 minutes
1Detected pressure signal＞5MPa receives 1 signal.
5. send 0 signal pressure to be reduced to＜5MPa and kept the voltage-controlled injection well downhole flow regulator P of down-hole 15 minutes from the 20th minute
1Successively three 0 signals are received.
6. be raised to pressure more than the 5MPa from the 35th minute and kept voltage-controlled injection well downhole flow regulator P 5 minutes
11 signal is received.
Open P
1The 1st grade pressure coding 0010001 sends and finishes.
By that analogy, finish the coding transmission of each interval.
Claims (4)
1. regulate and control the method for layering water distribution with compression wave, it is characterized in that: according to the interval quantity of water injection well needs water distribution, one group of voltage-controlled injection well downhole flow regulator that can receive the ground pressure signal is respectively set the pressure signal coding of position and action, the program that receives and carry out these signals is set; The water injection string that the voltage-controlled injection well downhole flow regulator that possesses above-mentioned setting is housed is lowered in the water injection well, and makes that each injection well downhole flow regulator is positioned at corresponding interval on it; Make pressure source with the water under high pressure that high-pressure pump produces,, the voltage-controlled injection well downhole flow regulator on the interval of the needs adjustment water yield is sent and the corresponding pressure code signal of its action, make it to produce the variation of discharge area by the valve on operating pressure source and the wellhead assembly.
2. according to the method with compression wave regulation and control layering water distribution of claim 1, it is characterized in that described pressure signal coding is taked by address code and action code combined.
3. according to the method with compression wave regulation and control layering water distribution of claim 1, it is characterized in that described pressure signal is the various pressure waveforms that are made of pressure and time.
4. according to the method with compression wave regulation and control layering water distribution of claim 1 and 2, it is characterized in that a kind of address code and the combination of multiple action code make the discharge area of voltage-controlled injection well downhole flow regulator produce a plurality of gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100612288A CN100422504C (en) | 2004-11-27 | 2004-11-27 | Method of regulating layered water distribution using pressure wave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100612288A CN100422504C (en) | 2004-11-27 | 2004-11-27 | Method of regulating layered water distribution using pressure wave |
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| Publication Number | Publication Date |
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| CN1619097A true CN1619097A (en) | 2005-05-25 |
| CN100422504C CN100422504C (en) | 2008-10-01 |
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|---|---|---|---|
| CNB2004100612288A Expired - Fee Related CN100422504C (en) | 2004-11-27 | 2004-11-27 | Method of regulating layered water distribution using pressure wave |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101883910A (en) * | 2007-10-16 | 2010-11-10 | 弗米尔制造公司 | The equipment and the method that are used for the power control of horizontal directional drilling |
| CN102839954A (en) * | 2011-06-24 | 2012-12-26 | 中国石油化工股份有限公司 | Method for achieving separated layer water distribution by pressure pulse |
| CN102839952A (en) * | 2011-06-24 | 2012-12-26 | 中国石油化工股份有限公司 | Device and method for data transmission during underground integrated communication |
| CN106761609A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | The underground turbine generation automatically controlled water injection string of pressure transmission signal |
| CN108121369A (en) * | 2017-12-20 | 2018-06-05 | 中国石油天然气股份有限公司 | A kind of Intelligent water injection remote control apparatus and method |
| CN108397173A (en) * | 2018-02-07 | 2018-08-14 | 中国石油天然气股份有限公司 | Seperated layer water injection system and layered water injection method |
| CN109372479A (en) * | 2017-11-07 | 2019-02-22 | 中国石油化工股份有限公司 | Water injection well wireless test and control separate injection tubing string |
| CN114622879A (en) * | 2020-12-10 | 2022-06-14 | 中国石油天然气股份有限公司 | Layered water injection wireless communication method and wireless two-way communication device |
| CN115059438A (en) * | 2022-05-30 | 2022-09-16 | 西安思坦仪器股份有限公司 | Water injection allocation method for wave code injection well |
| CN118065820A (en) * | 2024-04-17 | 2024-05-24 | 大庆长垣能源科技有限公司 | Piezoelectric switch control toe end sliding sleeve based on precoding uniqueness identification |
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| CN109854216B (en) * | 2019-03-18 | 2021-04-23 | 中国石油化工股份有限公司 | Layered water injection method for water injection well multilayer separate injection distributed communication |
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| CN1279338A (en) * | 1999-07-06 | 2001-01-10 | 曹平生 | Electrically controlled layered injection and schedule of water for water injection wells in oil field |
| CN2417288Y (en) * | 2000-03-18 | 2001-01-31 | 大庆油田有限责任公司第二采油厂 | Switching and offcenter type lamination water injection equipment |
| CN1141491C (en) * | 2000-12-12 | 2004-03-10 | 中国石化胜利油田有限公司采油工艺研究院 | Stratum-changing production method and technical pipe column |
| CN2480545Y (en) * | 2001-05-25 | 2002-03-06 | 中国石化胜利油田有限公司临盘采油厂 | Downhole fixed pressure opened constant flow water-making up apparatus |
| CN1525041A (en) * | 2003-09-16 | 2004-09-01 | 贵州航天凯山石油仪器有限公司 | Automatic adjustment method for injection allocation quantity of oil field water injection well |
-
2004
- 2004-11-27 CN CNB2004100612288A patent/CN100422504C/en not_active Expired - Fee Related
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| CN101883910B (en) * | 2007-10-16 | 2013-11-06 | 弗米尔制造公司 | Devices and methods for power control in horizontal directional drilling |
| CN101883910A (en) * | 2007-10-16 | 2010-11-10 | 弗米尔制造公司 | The equipment and the method that are used for the power control of horizontal directional drilling |
| CN102839954A (en) * | 2011-06-24 | 2012-12-26 | 中国石油化工股份有限公司 | Method for achieving separated layer water distribution by pressure pulse |
| CN102839952A (en) * | 2011-06-24 | 2012-12-26 | 中国石油化工股份有限公司 | Device and method for data transmission during underground integrated communication |
| CN102839954B (en) * | 2011-06-24 | 2015-10-07 | 中国石油化工股份有限公司 | A kind of pressure pulse realizes the method for layering water distribution |
| CN106761609A (en) * | 2015-11-24 | 2017-05-31 | 中国石油化工股份有限公司 | The underground turbine generation automatically controlled water injection string of pressure transmission signal |
| CN109372479A (en) * | 2017-11-07 | 2019-02-22 | 中国石油化工股份有限公司 | Water injection well wireless test and control separate injection tubing string |
| CN108121369A (en) * | 2017-12-20 | 2018-06-05 | 中国石油天然气股份有限公司 | A kind of Intelligent water injection remote control apparatus and method |
| CN108121369B (en) * | 2017-12-20 | 2023-10-27 | 中国石油天然气股份有限公司 | Intelligent water injection remote control device and method |
| CN108397173A (en) * | 2018-02-07 | 2018-08-14 | 中国石油天然气股份有限公司 | Seperated layer water injection system and layered water injection method |
| US10890059B2 (en) | 2018-02-07 | 2021-01-12 | Petrochina Company Limited | Layered water injection system and layered water injection method |
| CN114622879A (en) * | 2020-12-10 | 2022-06-14 | 中国石油天然气股份有限公司 | Layered water injection wireless communication method and wireless two-way communication device |
| CN114622879B (en) * | 2020-12-10 | 2024-04-30 | 中国石油天然气股份有限公司 | Layered water injection wireless communication method and wireless two-way communication device |
| CN115059438A (en) * | 2022-05-30 | 2022-09-16 | 西安思坦仪器股份有限公司 | Water injection allocation method for wave code injection well |
| CN118065820A (en) * | 2024-04-17 | 2024-05-24 | 大庆长垣能源科技有限公司 | Piezoelectric switch control toe end sliding sleeve based on precoding uniqueness identification |
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|---|---|
| CN100422504C (en) | 2008-10-01 |
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