CN108756838A - The nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method of pre-buried cable - Google Patents
The nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method of pre-buried cable Download PDFInfo
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- CN108756838A CN108756838A CN201810731094.8A CN201810731094A CN108756838A CN 108756838 A CN108756838 A CN 108756838A CN 201810731094 A CN201810731094 A CN 201810731094A CN 108756838 A CN108756838 A CN 108756838A
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- cable
- watering device
- intelligent watering
- continuous pipe
- flexible compound
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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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Abstract
The invention discloses the nonmetallic continuous pipe observing and controlling seperated layer water injection systems and its operating method of a kind of pre-buried cable, flexible compound including preset cable is continuously managed, there is cable intelligent watering device, ground controller and mating PC machine control system, one end of the continuous pipe of flexible compound is connect by connector with there is one end of cable intelligent watering device, there is the other end of cable intelligent watering device to be connect with device for plug of sieve tube and double acting valve, the other end of the continuous pipe of flexible compound is connect with implanter, preset cable in the continuous pipe of flexible compound is connect through ground controller with PC machine, pass through underground to ground, ground arrive at a station control platform remotely there is cable both-way communication to monitor laminated distributor under well pressure and data on flows in real time.Without bundling cable, construction is simple is efficient, at low cost for workover treatment of the present invention, is not necessarily to any working truck in ground and equipment, labor intensity is greatly lowered.
Description
Technical field
The invention belongs to oil-field flooding technical fields, and in particular to a kind of nonmetallic continuous pipe observing and controlling layering of pre-buried cable
Flood pattern and its operating method.
Background technology
Oil-field flooding is one of most widely used, most effective, most economical volume increase stable yields measure in oilfield development process.With
The continuous improvement of oil field development demand, water injection technology constantly upgrades, in order to effectively solve interlayer and intraformational differentiation, it is proposed that
Laminated distributor under well water injection technology realizes balanced development of injection-production, improves reservoir swept volume to the greatest extent, improves oil recovery rate.
Currently used layering injection well downhole flow regulator is mechanical underground water distribution structure, although stratified injection water technology can be realized, there are people
Work job execution is complicated, surveys the problems such as tune difficulty is big and seperated layer water injection effect is poor.When separated-zone water infection oil field well test is allocated at present
Mainly based on steel wire operation, fixed water is replaced in the pulling repeatedly that rises that steel wire is controlled by ground well testing truck control platform
Mouth, heavy workload, can not ground real-time control downhole measurement adjusting instrument realize to survey to adjust and synchronize that and pulling instrument lateral register is butted into
Power is low.
In order to solve high angle hole, deep-well, produced-water reinjection well, horizontal well seperated layer water injection and test allotment problem, pass through
The research of zonal injection technology, the development of key tool further increase water filling level of digital, realize that dispensing well is long-range in water-injection station
The real-time teletransmission of data such as test allotment and flow pressure allocates process to save lower wireline test, improves water filling and digitize water
It is flat, it realizes and the allotment of single layer flow rate test is implemented to dispensing well in water-injection station, realize the number such as flow, pressure, temperature, testing seal about packer
Teletransmission has carried out the research of digital intelligent separate zone waterflooding technology to water-injection station when factually.
Untethered number zonal injection technology is when needing to go into the well admission historical data or adjusting parameter at present, it is necessary to employ well logging
Vehicle is fulfiled assignment using cable under conventional method and instrument, has the digital zonal injection technology of cable that need to bundle cable construction outside oil pipe,
The problems such as there are Contraction in Site complexity, low construction efficiency, big Operating Pressure difficulty.It is asked to solve two kinds of techniques presence
Topic devises a kind of the nonmetallic of the pre-buried cable of tube body and continuously manages digital observing and controlling layered water filler system, solves dispensing well
The problems such as overall process monitoring well is down toward ground long-distance radio communication and laminated distributor under well pressure real-time Transmission.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of pre-buried cable
Nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method, solve to survey and adjust precision low, site operation is complicated, and labour is strong
Degree is big, and well head pressure is high, there are problems that techniques and the kits such as larger dangerous hidden danger.It has invented using intelligent testing tune, nothing
Line transmission, measuring multiple parameters synthesis is uniformly integrally placed at underground, fixed tubular column, do not need secondary high-pressure sealing in the case of,
Complete the new process and method accurate, that facilitate adjusting of each laminar flow amount of water injection well.
The present invention uses following technical scheme：
The nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable, including the flexible compound of preset cable continuously manage,
Have cable intelligent watering device, ground controller and a mating PC machine control system, one end of the continuous pipe of flexible compound by connector with
There is one end of cable intelligent watering device to connect, there is the other end of cable intelligent watering device to be connect with device for plug of sieve tube and double acting valve, it is soft
The other end of property composite coiled tubing is connect with implanter, and the preset cable in the continuous pipe of flexible compound is through ground controller and PC machine
Connection, by underground to ground, ground arrive at a station control platform remotely there is cable both-way communication to monitor laminated distributor under well pressure and flow in real time
Data.
Specifically, it includes that the first intelligent watering device and the second intelligent watering device, flexible compound are continuous to have cable intelligent watering device
Pipe is connect by connector with the first intelligent watering device, the packer and the second intelligent watering that the first intelligent watering device passes through cable excessively
Device connects.
Further, connector includes pipe nipple and termination, and one end of pipe nipple is provided with loop coil, coordinates loop coil by flange
It is connect with one end of the continuous pipe of flexible compound, the other end of pipe nipple is connect with the tool segment interface of intelligent watering device, termination
Axially it is arranged along pipe nipple.
Specifically, there is cable intelligent watering device to be integrated with flow rate test module, pressure sensor, power supply, control circuit, flow
Adjusting and communication module, measuring accuracy 2%；Flow control device integrates Motor torque and is not less than 6Nm.
Specifically, preset cable is two cores, the outer armour of a cable core and connector connects, and another cable core is intelligently matched with there is cable
Hydrophone is electrically connected.
Specifically, flexible compound continuously manages anti-25~35MPa of internal pressure.
Specifically, the inside of the continuous pipe of flexible compound is prepared using nonmetallic composite.
A kind of operating method of the nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable, includes the following steps：
Before S1, intelligent watering device enter well work, according to the survey tune scheme of injection-production program setting layering；
In S2, operation process of going into the well, will there are the first intelligent watering of cable device, the second intelligent watering device and the envelope for crossing cable first
It is connected to form oil pipe tool with cable between device and device for plug of sieve tube and double acting valve oil pipe Hard link, connector, then
By oil pipe tool G.I.H corresponding position；
After S3, step S2 oil pipe tools seal in well, working rig enters well site, proceeds by the continuous pipe of flexible compound and goes into the well；
S4, preset cable the continuous pipe of flexible compound gone into the well after, using well head fix blowout hookup fix well head, then
Suppress setting completion；
S5, data query is carried out by PC machine pair the first intelligent watering device and the second intelligent watering device, to the injecting process into
Row monitoring.
Specifically, in step S1, the survey tune scheme of layering is specially：To two layers of intelligent watering device setting with fluence, sampling
Interval, survey adjust the period, survey timing between, survey adjust error amount, go into the well after water nozzle opening time parameter.
Specifically, in step S3, the crossover sub of intelligent watering device is used continuously to manage flexible compound and step S2 first
One end string of downhole tool connect, it is ensured that the flexible compound of preset cable is continuously managed under after connection is normal.
Compared with prior art, the present invention at least has the advantages that：
The nonmetallic continuous pipe observing and controlling seperated layer water injection system of the pre-buried cable of the present invention, one end of the continuous pipe of flexible compound passes through
Connector is connect with there is one end of cable intelligent watering device, has the other end of cable intelligent watering device to connect with device for plug of sieve tube and double acting valve
It connects, the other end of the continuous pipe of flexible compound is connect with implanter, and the preset cable in the continuous pipe of flexible compound is through ground controller
Connect with PC machine, by underground to ground, ground arrive at a station control platform remotely there is cable both-way communication to monitor laminated distributor under well pressure in real time
And data on flows, it manages interior preset cable coiled tubing and cable is preset inside continuous pipe, tubing string end quantity is few, and sealing is more
Can be high, ground Whole Process Control and monitoring are realized artificial casting and dragging free and are surveyed and adjust operation, improve working efficiency, save and survey tune expense.
Further, the first intelligent watering device is connect by cable-passing packer with the second intelligent watering device, between connector
It is connected to form oil pipe tool with cable, is separated with cable-passing packer between two injection well downhole flow regulators, first layer intelligent watering device is upper
Layer water filling, second layer injection well downhole flow regulator are lower layer's water filling.
Further, which connect the nonmetallic continuous pipe of pre-buried cable with there is one end of cable intelligent watering device, from
And realizing the nonmetallic continuous pipe of pre-buried cable and underground has the sealed connection of the digital dispensing tool string of cable.
Further, flow rate test module can carry out zonal flow rate accurate test and measuring, pressure sensor realization pair
Before mouth after mouth pressure continuous monitoring, power supply, control circuit, flow-rate adjustment and communication module realize ground controller to well
Power supply, real-time communication and the control of lower intelligent watering device, while flow-rate adjustment module carries out test allotment to zonal flow rate, if
When layered waterflooding quantity exceeds the error range of multi-zone flow regulating amount, the water nozzle in downhole intelligent injection well downhole flow regulator carries out automatic survey and adjusts, toward point
Layer is infinitely approached with fluence.
Further, the outer armour of a cable core and connector connects, for ground and laminated distributor under well intelligent watering device two-way
News and control, another cable core are electrically connected with there is cable intelligent watering device, are powered for laminated distributor under well intelligent watering device by cable.
Further, it uses nonmetallic composite, tube wall to be not easy wax deposition inside continuous pipe, has more than metal oil conduit
Strong corrosion resistance.
The invention also discloses a kind of operating methods of the nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable, exempt from
Go into the well risk and the complicated process of preset cable other than pipe have realized the digital dispensing Operating Pressure of cable, nonmetallic continuous
Preset cable is arranged for two cores in pipe, meets ground and the reliable and stable both-way communication in underground, power supply and control, while can be in
It controls room and carries out remote monitoring and water filling policy adjustment, a large amount of full and accurate data can be provided for oil field development, exempt manual testing and make
Industry effectively reduces operating risk and cost.
In conclusion workover treatment of the present invention is without bundling cable, construction is simple is efficient, at low cost, appoints without ground
What working truck and equipment, is greatly lowered labor intensity.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is overall schematic of the present invention；
Fig. 2 is Hard link tool string in underground of the present invention and the continuous pipe connection diagram of preset cable flexible compound；
Fig. 3 is the preset cable flexible compound of the present invention continuously pipe and underground Hard link tool string structure chart；
Fig. 4 is the preset continuous pipe coiled tubing unit schematic diagram of cable flexible compound of the present invention；
Fig. 5 is schematic diagram of the embodiment of the present invention, wherein (a) is the upper layers disk 60-27 history curve, is (b) under disk 60-27
Layer history curve is (c) that disk 60-27 tests envelope curve.
Wherein：1. flexible compound is continuously managed；2. packer；3. ground controller；4.PC machines；5. the first intelligent watering device；
6. the second intelligent watering device；7. connector；8. loop coil；9. flange；10. pipe nipple；11. termination；12. engineering segment interface；13. note
Enter machine；14. device for plug of sieve tube and double acting valve.
Specific implementation mode
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side ", " one end ", " one side " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, do not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and
Operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more this feature.In the description of the present invention,
Unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention provides the nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method of a kind of pre-buried cable, tools
There are each layer bit traffic automatic governing in underground, the monitoring in real time of down-hole pressure, temperature and flow parameter and storage, data and command communication
The functions such as envelope are tested in transmission, underground automatically.
Ground controller and PC machine are continuously managed (liner conducting wire) by flexible compound and realize communication with intelligent watering device, are completed
Data direct-reading and real-time control, and according to presupposed solution or in well head, the water nozzle opening degree of each layer of Central Control Room real-time control, make
Every layer of water injection rate reaches the technical process of geology injection allocation requirement.
Present invention solution has the digital zonal injection technology of cable to bundle cable outside oil pipe, and Contraction in Site is complicated, construction is imitated
The problems such as rate is low, Operating Pressure difficulty is big.Flexible compound is after continuously pipe is connected with injection well downhole flow regulator, the preset cables of two cores instead of
Original oil pipe and cable, the continuous Guan Zhongyi roots cable core (ground wire) of flexible compound are connected on the outer armour of crossover sub, another letter
Number line is connected with injection well downhole flow regulator signal wire, realizes that remotely there is cable both-way communication in underground to ground, ground the control platform that arrives at a station, in real time prison
Well logging lower leaf pressure, data on flows are not necessarily to high intensity manual work, convenient, flexible.
It please refers to Fig.1 and Fig. 2, a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable of the present invention, including
The continuous pipe 1 of flexible compound of preset cable, have cable intelligent watering device, cross the packer 2 of cable and cross cable wellhead of water injection well,
4 control system of face controller 3 and mating PC machine；One end of the continuous pipe of flexible compound 1 is by connector 7 and has cable intelligent watering device
One end connects, and has the other end of cable intelligent watering device to be connect with device for plug of sieve tube and double acting valve 14, the continuous pipe of flexible compound 1
The other end is connect with implanter 13, as shown in figure 4, default injection allocation parameter before work, will carry out injection allocation according to parameter preset automatically
Operation realizes that remotely there is cable both-way communication in underground to ground, ground the control platform that arrives at a station, in real time monitoring laminated distributor under well pressure, flow
Data are not necessarily to high intensity manual work, convenient, flexible.
It includes the first intelligent watering device 5 and the second intelligent watering device 6 to have cable intelligent watering device, and the continuous pipe 1 of flexible compound is logical
It crosses connector 7 to connect with the first intelligent watering device 5, the packer 2 and the second intelligent watering that the first intelligent watering device 5 passes through cable excessively
Device 6 connects.
There is cable intelligent watering device to integrate flow rate test module, pressure sensor, power supply, control circuit, flow-rate adjustment and lead to
Interrogate module.Start flow, there is cable intelligent watering device flow rate test precision to reach 2%；Flow control device integrates Motor torque not
Less than 6Nm；Preset cable in the pipe of the continuous pipe of flexible compound 1 meets underground and is communicated with ground bidirectional, and matches to downhole intelligent
Hydrophone is powered.
The continuous 1 anti-internal pressure 35MPa of pipe of flexible compound, meet packer 2 sets requirement.
Referring to Fig. 3, connector 7 includes pipe nipple 10 and termination 11, one end of pipe nipple 10 is provided with loop coil 8, passes through method
Orchid 9 coordinates one end of the continuous pipe of loop coil 8 and flexible compound 1 to connect, and the tool segment of the other end and intelligent watering device of pipe nipple 10 connects
Mouth 12 connects, and termination 11 has cable intelligent watering device signal wire using gum cover conducting wire across threading along the axial setting of pipe nipple 10
Pipe is connected with slip ring socket.
Device for plug of sieve tube is the necessary device dispensed in the configuration of well casing column, primarily to used in sand output well sand setting, double acting
Valve loads onto preset seating nipple primarily to Operating Pressure design, does not return water in oil pipe when operation, realizes water injection well intelligence
Seperated layer water injection Operating Pressure
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
Applying the component of example can be arranged and be designed by a variety of different configurations.Therefore, the present invention to providing in the accompanying drawings below
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of the selected of the present invention
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable of the present invention and its operation side of operating method
Method is as follows：
Before S1, intelligent watering device enter well work, according to the survey tune scheme of injection-production program setting layering, to two layers of intelligent watering
Device setting with fluence, sampling interval, survey adjust the period, survey timing between, survey adjust error amount, go into the well after the parameters such as water nozzle opening time.
In S2, operation process of going into the well, will there are the first intelligent watering of cable device 5, the second intelligent watering device 6 first and cross cable envelope
Between the undergrounds attachment oil pipe Hard links such as device 2 and device for plug of sieve tube and double acting valve 14, connector oil is connected to form with cable
Piping tool, then by oil pipe tool G.I.H corresponding position；
After S3, oil pipe tool seal in well, working rig 13 enters well site, proceeds by the continuous pipe of flexible compound 1 and goes into the well；
Use the crossover sub 7 of the continuous pipe 1 of flexible compound and intelligent watering device by the continuous pipe 1 of flexible compound and step first
One end string of the downhole tool of S2 connects, it is ensured that the continuous pipe of the flexible compound of preset cable 1 under after connection is normal；
S4, preset cable the continuous pipe 1 of flexible compound under it is complete after using well head fix blowout hookup fix well head, then beat
Wedge seals completion；
When needing to change injection allocation scheme, well head or Central Control Room (without employing instrument under logging truck), to layering
Injection allocation scheme is modified；
S5, by server to downhole intelligent injection well downhole flow regulator data query, find the problems in the injecting process in time, be oil field
Reservoir recognizes and improves injection-production program and provides data support.
Referring to Fig. 5, a is the upper layers disk 60-27 history curve, b is disk 60-27 lower layers history curve, and c is that disk 60-27 is tested
Curve is sealed, Pan60-27Jing matches fluence 40m in completion on October 27th, 2014, well depth 1931m, 19 ° of hole deviation, the well3/ d, on
Lower layer is 20m3/d.Play back 1 month data of well levels, pressure, temperature data 253 after pressure, mouth before admission flow, mouth
Group, seperated layer water injection qualification rate are maintained at 90% or more, and obtain automatic test and seal as a result, providing a large amount of points for reservoir geology man
Layer data provides full and accurate first-hand data for the analysis of later stage effect of reservoir development.
This method eliminates go into the well risk and the complicated process of preset cable outside pipe, and it is with pressure to have realized the digital dispensing of cable
Operation, preset cable is the setting of two cores in nonmetallic continuous pipe, meets ground and the reliable and stable both-way communication in underground, power supply and control
System, while remote monitoring and water filling policy adjustment can be carried out in Central Control Room, a large amount of full and accurate data can be provided for oil field development,
Exempt manual testing's operation, effectively reduces operating risk and cost.
The above content is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every to press
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within claims of the present invention
Protection domain within.
Claims (10)
1. the nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable, which is characterized in that the flexibility including preset cable is multiple
It closes continuous pipe (1), have cable intelligent watering device, ground controller (3) and mating PC machine (4) control system, flexible compound continuous
One end of pipe (1) is connect by connector (7) with there is one end of cable intelligent watering device, there is the other end and screen casing of cable intelligent watering device
Silk plug and double acting valve (14) connection, the other end that flexible compound continuously manages (1) are connect with implanter (13), and flexible compound connects
Preset cable in continuous pipe (1) is connect through ground controller (3) with PC machine (4), is arrived at a station by underground to ground, ground and is controlled platform
Remotely there is cable both-way communication to monitor laminated distributor under well pressure and data on flows in real time.
2. a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 1, feature exist
In it includes the first intelligent watering device (5) and the second intelligent watering device (6) to have cable intelligent watering device, and it is logical that flexible compound continuously manages (1)
It crosses connector (7) to connect with the first intelligent watering device (5), the packer (2) and second that the first intelligent watering device (5) passes through cable excessively
Intelligent watering device (6) connects.
3. a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 2, feature exist
In connector (7) includes pipe nipple (10) and termination (11), and one end of pipe nipple (10) is provided with loop coil (8), passes through flange (9)
One end that cooperation loop coil (8) continuously manages (1) with flexible compound is connect, the tool segment of the other end and intelligent watering device of pipe nipple (10)
Interface (12) connects, and termination (11) is axially arranged along pipe nipple (10).
4. a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 1 or 2, feature
It is have cable intelligent watering device to be integrated with flow rate test module, pressure sensor, power supply, control circuit, flow-rate adjustment and communication
Module, measuring accuracy 2%；Flow control device integrates Motor torque and is not less than 6Nm.
5. a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 1, feature exist
In preset cable is two cores, and a cable core is connect with the outer armour of connector (7), and another cable core is electrically connected with there is cable intelligent watering device
It connects.
6. a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 1, feature exist
In flexible compound continuously manages (1) anti-25~35MPa of internal pressure.
7. a kind of nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 1, feature exist
In the inside that flexible compound continuously manages (1) is prepared using nonmetallic composite.
8. a kind of operating method using any one of claim 1 to 7 system, which is characterized in that include the following steps：
Before S1, intelligent watering device enter well work, according to the survey tune scheme of injection-production program setting layering；
In S2, operation process of going into the well, will there are cable the first intelligent watering device (5), the second intelligent watering device (6) first and cross cable
Packer (2) and device for plug of sieve tube and double acting valve (14) oil pipe Hard link are connected to form oil pipe between connector with cable
Tool, then by oil pipe tool G.I.H corresponding position；
After S3, step S2 oil pipe tools seal in well, working rig (13) enters well site, proceeds by flexible compound and continuously manages (1) and goes into the well；
S4, preset cable flexible compound continuously manage after (1) gone into the well, fix blowout hookup using well head and fix well head, then
Suppress setting completion；
S5, data query is carried out to the first intelligent watering device (5) and the second intelligent watering device (6) by PC machine (4), to water filling
Journey is monitored.
9. a kind of operation side of the nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 8
Method, which is characterized in that in step S1, the survey tune scheme of layering is specially：Between two layers of intelligent watering device setting with fluence, sampling
Every, survey adjust the period, survey timing between, survey adjust error amount, go into the well after water nozzle opening time parameter.
10. a kind of operation side of the nonmetallic continuous pipe observing and controlling seperated layer water injection system of pre-buried cable according to claim 8
Method, which is characterized in that in step S3, use the crossover sub (7) of intelligent watering device that flexible compound is continuously managed to (1) and step first
One end string of the downhole tool of rapid S2 connects, it is ensured that the flexible compound of preset cable continuously manages (1) under after connection is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731094.8A CN108756838A (en) | 2018-07-05 | 2018-07-05 | The nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method of pre-buried cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731094.8A CN108756838A (en) | 2018-07-05 | 2018-07-05 | The nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method of pre-buried cable |
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| Publication Number | Publication Date |
|---|---|
| CN108756838A true CN108756838A (en) | 2018-11-06 |
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|---|---|---|---|
| CN201810731094.8A Pending CN108756838A (en) | 2018-07-05 | 2018-07-05 | The nonmetallic continuous pipe observing and controlling seperated layer water injection system and its operating method of pre-buried cable |
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| CN (1) | CN108756838A (en) |
Cited By (6)
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| CN109386266A (en) * | 2018-11-27 | 2019-02-26 | 中国石油天然气股份有限公司 | A kind of cable controlling intelligent layered water filler system and its construction technology |
| CN109538180A (en) * | 2019-01-07 | 2019-03-29 | 中国石油天然气股份有限公司 | A kind of process pipe string and method having the digital dispensing Operating Pressure of cable |
| CN109736761A (en) * | 2019-01-29 | 2019-05-10 | 中国石油天然气股份有限公司 | A kind of separated-zone water infection oil field process pipe string device |
| CN111878069A (en) * | 2020-08-04 | 2020-11-03 | 华信唐山石油装备有限公司 | Composite continuous pipe cable oil-water well casing leakage finding system and method |
| CN111963153A (en) * | 2020-08-04 | 2020-11-20 | 华信唐山石油装备有限公司 | Test system and method for water outlet section of horizontal well of composite continuous pipe cable |
| CN113236199A (en) * | 2020-11-09 | 2021-08-10 | 中国海洋石油集团有限公司 | Oil well cable control layered monitoring and intelligent production allocation system and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109386266A (en) * | 2018-11-27 | 2019-02-26 | 中国石油天然气股份有限公司 | A kind of cable controlling intelligent layered water filler system and its construction technology |
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| CN113236199A (en) * | 2020-11-09 | 2021-08-10 | 中国海洋石油集团有限公司 | Oil well cable control layered monitoring and intelligent production allocation system and use method thereof |
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