CN109372479A - Water injection well wireless test and control separate injection tubing string - Google Patents
Water injection well wireless test and control separate injection tubing string Download PDFInfo
- Publication number
- CN109372479A CN109372479A CN201711087671.6A CN201711087671A CN109372479A CN 109372479 A CN109372479 A CN 109372479A CN 201711087671 A CN201711087671 A CN 201711087671A CN 109372479 A CN109372479 A CN 109372479A
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- tubing string
- water
- wireless test
- flow measuring
- water injection
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- 238000002347 injection Methods 0.000 title claims abstract description 99
- 239000007924 injection Substances 0.000 title claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 238000011161 development Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 20
- 238000004891 communication Methods 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035485 pulse pressure Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- 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)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention provides a kind of water injection well wireless test and control separate injection tubing string, including down-hole pressure pulse R-T unit, multiple flow measuring and controlling devices, multiple cable-passing packers and oil pipe, the multiple flow measuring and controlling device is set by the multiple cable-passing packer in different water filling layers respectively, the down-hole pressure pulse R-T unit is located at the upper end of tool segment, electric signal will be converted to from the pressure signal of ground receiver, and it is transferred to the multiple flow measuring and controlling device, to control the work of the multiple flow measuring and controlling device, it injects water and enters the oil pipe, flow downward to the multiple flow measuring and controlling device being located in each water filling layer, the multiple flow measuring and controlling device measures the water injection rate of each water filling layer.Injection allocation scheme adjusts in real time, surveys the frequent requirement of tune during the water injection well wireless test and control separate injection tubing string meets oil reservoir three-dimensional development, improves intelligent zonal injection technology technical level, has filled up the transmission of wireless two-way signal in the blank in water filling field.
Description
Technical field
The present invention relates to oil field development technical fields, especially relate to a kind of water injection well wireless test and control separate injection tubing string.
Background technique
Separated-zone water infection oil field well periodically carries out zonal testing, grasps each separate injection interval water swelling elastomer, while to being unable to satisfy
The water filling layer that injection allocation requires carries out runoff investigation and reaches injection allocation requirement, and dispensing well commissioning process at present includes that steel wire carries tester
Device go into the well data acquisition storage after ground playback read, pulling water nozzle carry out model for water quantity allocation；Communication cable, which carries to survey, adjusts integration
Instrument go into the well it is layer-by-layer while test while water diversion volume, survey timing ground can directly read data；As micro machine, electronic information are integrated
The development of technology has also carried out cable and has often set underground real-time Transmission, and sound wave is wirelessly transferred, electromagnetic wave signal is wirelessly transferred and unidirectional
The engineering tests such as pressure pulse control wireless transmission, the development for Intelligent water injection technology of promoting IT application, but there are the following problems: 1)
Directional well, the tripping in of high angle hole measurement and adjustment instrument device are difficult, can not implement effectively to dispense；2) it is easy to knock when communication cable is gone into the well with oil pipe
It touches and causes corrosion disconnected de-, influence the tubing string service life；3) existing wireless transmission method signal decaying is serious, transmission range is short, and only
Ground is able to achieve to the unidirectional signal transfer of underground, tripping in instrument can not be needed to be acquired, tiltedly underground signal wireless backhaul
It is even more impossible to implement in well.Thus we have invented a kind of new water injection well wireless test and control separate injection tubing string, solves the above technology and ask
Topic.
Summary of the invention
The object of the present invention is to provide one kind to be applied to the zonal testing of separated-zone water infection oil field well and allotment, passes through pressure pulse
The water injection well wireless test and control separate injection tubing string on ground and under-well bi-directional wireless communication is realized in the transmission of signal.
The purpose of the present invention can be achieved by the following technical measures: water injection well wireless test and control separate injection tubing string, the water injection well
Wireless test and control separate injection tubing string includes down-hole pressure pulse R-T unit, multiple flow measuring and controlling devices, multiple cable-passing packers and
Oil pipe, the multiple flow measuring and controlling device are set by the multiple cable-passing packer in different water filling layers, the well respectively
Lower pressure pulse R-T unit is located at the upper end of tool segment, will be converted to electric signal from the pressure signal of ground receiver, and transmit
To the multiple flow measuring and controlling device, to control the work of the multiple flow measuring and controlling device, injection water enters the oil pipe, downwards
The multiple flow measuring and controlling device being located in each water filling layer is flowed to, the multiple flow measuring and controlling device measures each water filling layer
Water injection rate.
The purpose of the present invention can be also achieved by the following technical measures:
The water injection well wireless test and control separate injection tubing string further includes underground power supply used power supply, which is connected to the underground
Pressure pulse R-T unit and the multiple flow measuring and controlling device, for the down-hole pressure pulse R-T unit and the multiple flow
Measure and control device provides mains power.
Water injection well wireless test and control separate injection tubing string further includes signal cable, which passes through the signal
Cable connection passes through the multiple cable-passing packer in underground in the multiple flow measuring and controlling device.
The water injection well wireless test and control separate injection tubing string further includes flushing valve, which is connected to the water injection well wireless test and control point
The end of tubing string is infused, to carry out the anti-flushing well of the water injection well wireless test and control separate injection tubing string.
The water injection well wireless test and control separate injection tubing string further includes casing, which is located at the water injection well wireless test and control separate injection tubing string
Outermost layer, with protect inside each component.
The water injection rate of each water filling layer of acquisition is uploaded to the well as digital signal by the multiple flow measuring and controlling device
Lower pressure pulse R-T unit, which converts electric signal for digital signal, to generate pulse pressure
Reeb is uploaded to the well head pressure identification device positioned at ground.
Well head pressure identification device positioned at ground analyzes the water injection rate data received, then issues instruction again
It controls geostatic pressure pulse R-T unit and issues pressure pulse signal, be transferred to down-hole pressure pulse transmitting-receiving dress by injecting water
It sets, which is converted to electric signal for pressure signal, issues instruction and fills to the multiple flow measuring and controlling
It sets and is adjusted, control water yield size until design value.
The multiple flow measuring and controlling device collection tube external pressure force value, and acquisition data are transmitted to the down-hole pressure pulse and are received
Transmitting apparatus.
When the down-hole pressure pulse R-T unit uploads data, pressure coded sequence is according to floor position number, flow value, pipe external pressure
Force value, the arrangement of water nozzle aperture, every group of data array are fixed；The well head pressure identification device on ground decodes in a fixed order
Obtain corresponding each layer data.
Water injection well wireless test and control separate injection tubing string in the present invention changes the mode of pit shaft inner cable transmission signal, untethered
The risk for transmitting damage of colliding with when eliminating cable tripping in inclined shaft reduces on-the-spot test, deploys, tests the workloads such as envelope, alleviates
The deficiency for surveying force adjustment amount, injection allocation scheme adjust in real time, surveys tune frequently requirement during meeting oil reservoir three-dimensional development, improves
Intelligent zonal injection technology technical level has filled up the transmission of wireless two-way signal in the blank in water filling field.
Detailed description of the invention
Fig. 1 is the structure chart of a specific embodiment of water injection well wireless test and control separate injection tubing string of the invention.
Specific embodiment
To enable above and other objects, features and advantages of the invention to be clearer and more comprehensible, preferably implementation is cited below particularly out
Example, and cooperate shown in attached drawing, it is described in detail below.
As shown in FIG. 1, FIG. 1 is the structure charts of water injection well wireless test and control separate injection tubing string of the invention.The water injection well is wirelessly surveyed
Controlling separate injection tubing string includes down-hole pressure pulse R-T unit 1, underground power supply used power supply 2, flow measuring and controlling device 3, cable-passing packer
4, signal cable 5, oil pipe 6, casing 7, flushing valve 8.
Injection water enters oil pipe 6, flows downward until each water filling layer corresponds to flow measuring and controlling device 3, down-hole pressure pulse is received
Transmitting apparatus 1 receives the pressure signal that geostatic pressure pulse R-T unit is sent, and is reconverted into electric signal, controls flow measuring and controlling device
3 work, underground power supply used power supply 2 is down-hole pressure pulse R-T unit 1 and flow measuring and controlling device 3 provides mains power, crosses cable
Packer 4 realizes the separation between each water filling layer, and signal cable 5 is connected to tubing string end from down-hole pressure pulse R-T unit 1
Flow measuring and controlling device 3, carries out the transmission up and down of dispensing well section signal, and flushing valve 8 is connected to tubing string end, meets tubing string anti-flushing well
It is required that.Casing 7 is located at the outermost layer of the water injection well wireless test and control separate injection tubing string, with each component inside protection.
Water injection well wireless test and control separate injection tubing string of the invention at work the following steps are included:
Tool of going into the well successively is threadedly coupled, and by signal cable connection communication between tool, tool segment is topmost
Underground power supply used power supply and pressure pulse R-T unit.
It setting and closes each layer distributor apopore of tool segment, oil pipe is suppressed cable-passing packer 4 and is set, after oil pipe pressure release,
Cable-passing packer keeps segmented state.
Well-flushing flushing fluid enters from oil jacket annulus, with pressure rise opened cable packer well-washing channel, flushing fluid
Across cable-passing packer, by bottom flushing valve, into oil pipe, until returning to ground, the thorough well-flushing of full well is realized.
Injection oil pipe water is injected into each water filling layer by underground flow measuring and controlling devices at different levels, and interlayer cable-passing packer is real
Existing effect layering.
The digital signal of acquisition is uploaded to underground pulse R-T unit by underground flow measuring and controlling devices at different levels when test uploads,
Digital signal is converted electric signal by pulse R-T unit, and control pulse R-T unit work generates pulsed pressure wave, is uploaded to
Well head pressure identification device.
It is analyzed when allotment passes down in face of having uploaded data, then issues instruction control geostatic pressure pulse transmitting-receiving again
Device issues pressure pulse signal, is transferred to down-hole pressure pulse R-T unit by injecting water, and R-T unit is by pressure signal
Electric signal is converted to, instruction convection current measurement and control device is issued and is adjusted, control water yield size until design value.
Water injection well wireless test and control separate injection tubing string of the invention, underground flow measuring and controlling devices at different levels use a set of down-hole pressure arteries and veins
It rushes R-T unit to be controlled, while being powered using a set of underground is self-powered, flow measuring and controlling devices at different levels can acquire
Acquisition data are transmitted to down-hole pressure pulse R-T unit and carry out pressure signal coding biography by pressure value in corresponding oil jacket annulus
It is defeated.
Down-hole pressure pulse R-T unit upload data when, pressure coded sequence according to floor position number, flow value, external pressure value,
The arrangement of water nozzle aperture, every group of data array are fixed；Ground well head Pressure identification device decodes in a fixed order obtains phase
Each layer data answered.
The leakproofness of packer is judged by the oil jacket annulus pressure of adjacent upper and lower level, suppresses on or off by ground
It closes and is suppressed with packer adjacent layer flow measuring and controlling device, the pulse into oil pipe of ground well head, flow measuring and controlling device collection tubes at different levels
External pressure force value, and it is uploaded to down-hole pressure pulse R-T unit, then pressure signal is uploaded to well head pressure identification device.
When the single water filling layer in underground needs to stop water filling, well head pulse into oil pipe in ground, which is suppressed, issues fixed pressure code
Signal can close corresponding water filling laminar flow measurement and control device after the identification of underground.
The tubing string may be implemented periodically to fill the water in turn, remain the water filling of only one layer of position in underground, when one layer it is total
After water injection rate reaches setting value, ground signaling can close this layer and open another layer, realize loop cycle water filling, down-hole pressure arteries and veins
It rushes R-T unit and only receives pressure code control flow measuring and controlling devices at different levels, do not need to upload downhole testing data.
Water injection well wireless test and control separate injection tubing string of the invention, to inject water as medium, the pressure generated by ground and underground
Power pulse signal carries out the wireless two-way transmission of data, eliminates the transmission of communication cable, reduces cable in high angle hole and collides with
And the disconnected de- risk of pit shaft corrosion；Underground is transmitted by the way of having cable and wirelessly combining with ground signal, and wireless portion carries out
Tool segment is to have cable part to carry out tool segment distributor signal transmission control and long-term power supply up to ground communication.The water injection well
Wireless test and control separate injection tubing string is formd by having cable and wireless tubular column structure dimerous.Dispensing well section interlayer passed through cable
Packer is layered, and guarantees interlayer seal simultaneously in transmission signal.Each water filling interval has corresponding flow measuring and controlling device, well
Lower pulse R-T unit carries out control to single layer flow measuring and controlling device and data acquire.Pulse R-T unit in underground is by digital signal
It is converted into electric signal, instruction control is issued and generates pulsed pressure wave, ground receiver pressure wave signal is converted into digital signal, locates
Instruction is issued after the comparison of reason system again and generates pressure wave, underground pulse R-T unit receive carry out after signal conversion identification again into
Row Secondary Control, until reaching injection allocation requirement.
Claims (9)
1. water injection well wireless test and control separate injection tubing string, which is characterized in that the water injection well wireless test and control separate injection tubing string includes down-hole pressure
Pulse R-T unit, multiple flow measuring and controlling devices, multiple cable-passing packers and oil pipe, the multiple flow measuring and controlling device difference
It is set by the multiple cable-passing packer in different water filling layers, which is located at tool segment
Upper end receives the pressure signal that subsurface passes, and pressure signal is converted to electric signal, and be transferred to the multiple flow measuring and controlling
Device, to control the work of the multiple flow measuring and controlling device, injection water enters the oil pipe, flows downward to positioned at each water filling layer
In the multiple flow measuring and controlling device, the multiple flow measuring and controlling device measure it is each water filling layer practical water injection rate.
2. water injection well wireless test and control separate injection tubing string according to claim 1, which is characterized in that the water injection well wireless test and control point
Infusing tubing string further includes underground power supply used power supply, which is connected to the down-hole pressure pulse R-T unit and the multiple
Flow measuring and controlling device provides mains power for the down-hole pressure pulse R-T unit and the multiple flow measuring and controlling device.
3. water injection well wireless test and control separate injection tubing string according to claim 1, which is characterized in that the water injection well wireless test and control point
Infusing tubing string further includes signal cable, which is connected to the multiple flow by the signal cable and surveys
Device is controlled, and passes through the multiple cable-passing packer in underground.
4. water injection well wireless test and control separate injection tubing string according to claim 1, which is characterized in that the water injection well wireless test and control point
Infusing tubing string further includes flushing valve, which is connected to the end of the water injection well wireless test and control separate injection tubing string, to carry out the water filling
The anti-flushing well of well wireless test and control separate injection tubing string.
5. water injection well wireless test and control separate injection tubing string according to claim 1, which is characterized in that the water injection well wireless test and control point
Infusing tubing string further includes casing, which is located at the outermost layer of the water injection well wireless test and control separate injection tubing string, with each portion inside protection
Part.
6. water injection well wireless test and control separate injection tubing string according to claim 5, which is characterized in that the multiple flow measuring and controlling dress
It sets and is uploaded to the down-hole pressure pulse R-T unit, the underground pressure for the water injection rate of each water filling layer of acquisition as digital signal
Digital signal is converted electric signal by power pulse R-T unit, to generate pulsed pressure wave, is uploaded to the well head pressure positioned at ground
Power identification device.
7. water injection well wireless test and control separate injection tubing string according to claim 6, which is characterized in that the well head pressure positioned at ground
Identification device analyzes the water injection rate data received, then issues instruction control geostatic pressure pulse R-T unit hair again
Pressure pulse signal out is transferred to the down-hole pressure pulse R-T unit by injecting water, the down-hole pressure pulse R-T unit
Pressure signal is converted into electric signal, instruction is issued and the multiple flow measuring and controlling device is adjusted, control water yield size
Until design value.
8. water injection well wireless test and control separate injection tubing string according to claim 6, which is characterized in that the multiple flow measuring and controlling dress
Collection tube external pressure force value is set, and acquisition data are transmitted to the down-hole pressure pulse R-T unit.
9. water injection well wireless test and control separate injection tubing string according to claim 8, which is characterized in that down-hole pressure pulse transmitting-receiving
When device uploads data, pressure coded sequence is arranged according to floor position number, flow value, pipe external pressure force value, water nozzle aperture, every group of data
Arrangement mode is fixed；The well head pressure identification device on ground decodes in a fixed order obtains corresponding each layer data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711087671.6A CN109372479A (en) | 2017-11-07 | 2017-11-07 | Water injection well wireless test and control separate injection tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711087671.6A CN109372479A (en) | 2017-11-07 | 2017-11-07 | Water injection well wireless test and control separate injection tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109372479A true CN109372479A (en) | 2019-02-22 |
Family
ID=65404210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711087671.6A Pending CN109372479A (en) | 2017-11-07 | 2017-11-07 | Water injection well wireless test and control separate injection tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109372479A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396002A (en) * | 2020-03-18 | 2020-07-10 | 弗润联科(北京)石油科技有限公司 | Underground wireless flow control valve tool with wireless duplex communication and system thereof |
| CN114607327A (en) * | 2022-03-14 | 2022-06-10 | 河北中清永晟石油科技有限公司 | Underground water injection communication method and system |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396002A (en) * | 2020-03-18 | 2020-07-10 | 弗润联科(北京)石油科技有限公司 | Underground wireless flow control valve tool with wireless duplex communication and system thereof |
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| 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 |
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Application publication date: 20190222 |