CN108798652A - Collecting method and system under a kind of smart well - Google Patents
Collecting method and system under a kind of smart well Download PDFInfo
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- CN108798652A CN108798652A CN201810533170.4A CN201810533170A CN108798652A CN 108798652 A CN108798652 A CN 108798652A CN 201810533170 A CN201810533170 A CN 201810533170A CN 108798652 A CN108798652 A CN 108798652A
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- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000007405 data analysis Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims 1
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/26—Storing data down-hole, e.g. in a memory or on a record carrier
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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
- E21B47/00—Survey of boreholes or 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
- 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
- E21B47/13—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 by electromagnetic energy, e.g. radio frequency
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Abstract
The present invention relates to oil field, collecting method and system under a kind of smart well are disclosed, step S1, launches wireless acquisition device in well；Step S2, position of the wireless acquisition device in well is obtained；Step S3, the subsurface environment parameter of the position is acquired；Step S4, the wireless acquisition device is recycled from well.The beneficial effects of the invention are as follows：It using wireless acquisition device, need not be detected, be avoided using the problems such as place caused by optical fiber limits, mobility is poor, and have the advantages that applied widely, easy to use, maintenance cost is low etc. using optical fiber.
Description
Technical field
The present invention relates to oil fields, are collecting method and system under a kind of smart well specifically.
Background technology
Pressure break refers to, using hydraulic action, so that oil-gas Layer is formed a kind of method in crack, also known as in oil recovery or gas production process
Hydraulic fracturing.Oil-gas Layer fracturing technology process fracturing unit truck there is the liquid of certain viscosity to squeeze into oil reservoir high-pressure large-displacement, when
After oil reservoir is extruded many cracks, proppant (such as quartz sand) is added and is filled in crack, improves the penetrating power of oil-gas Layer, with
Increase the water injection rate of water injection well or the oil production of oil well.Common fracturing fluid has aqueous fracturing fluid, oil base fracturing fluid, emulsus pressure break
5 kinds of liquid, foam fracturing fluid and acid-base fracturing fluid fundamental types.
During oilfield exploitation, well temperature, wellbore pressure are essential measurement parameters in production, almost all of
Combination logging all includes this measurement content.Accurate well temperature, wellbore pressure are measured for geologic information explanation and oil well monitor
Deng all having a very important significance, may be used to determine geothermic gradient, go out liquid point, liquid injection (or leakage) layer position,
Layer position and channelling position of artificial fracturing etc..Recovery process of the temperature and pressure after fracturing work is also to construction technology simultaneously
Optimization have promotion meaning.
With the deep development of petroleum well logging technology, during oil field prospecting to the reliability of the monitoring of downhole parameters,
More stringent requirements are proposed for accuracy.Since subsurface environment has the spies such as high temperature, high pressure, chemical attack and strong electromagnetic
Point, well logging fibre optical sensor are obtained extensively with its good electrical insulating property and strong anti-electromagnetic interference capability in oil/gas well application
Approval.
But the problems such as since optical fiber mounting process is complicated, time-consuming, of high cost for repair, and permanently installed mobility is poor,
There is no promote the use of on a large scale in oil field.
Invention content
Technical problem to be solved by the invention is to provide collecting method and systems under a kind of smart well, for reducing
Measure the cost and difficulty of downhole parameters.
The technical solution that the present invention solves above-mentioned technical problem is as follows：Collecting method under a kind of smart well, including with
Lower step,
Step S1, wireless acquisition device is launched in well；
Step S2, position of the wireless acquisition device in well is obtained；
Step S3, the subsurface environment parameter of the position is acquired；
Step S4, the wireless acquisition device is recycled from well.
The beneficial effects of the invention are as follows：It using wireless acquisition device, need not be detected using optical fiber, avoid using light
The problems such as place caused by fibre limits, mobility is poor, and have the advantages that applied widely, easy to use, maintenance cost is low etc..
Based on the above technical solution, the present invention can also be improved as follows.
Further, the wireless acquisition device includes casing collar locator (CCL), and the concrete operations of the step S2 are：
Step S21, the quantity of described sleeve pipe collar locator acquisition casing coupling；
Step S22, determine that the wireless acquisition device exists according to the length of the quantity of described sleeve pipe box cupling and single casing
Position in well.
Advantageous effect using above-mentioned further scheme is：Using casing collar locator (CCL) and according to the length of casing come really
Determine position of the wireless acquisition device in well, improves the accuracy of location confirmation.
Based on the above technical solution, the present invention can also be improved as follows.
Further, described sleeve pipe collar locator includes magnetic-inductive device and counter, when the wireless acquisition device is thrown
When being placed in well, the counter clear, the magnetic-inductive device often detects that a signal, the counter increase by 1.
Advantageous effect using above-mentioned further scheme is：By counter and magnetic-inductive device, nothing can be accurately determined
Position of the line harvester in well
Based on the above technical solution, the present invention can also be improved as follows.
Further, it is equipped with ball seat or bridge plug in the well, is obtained by the position of ball seat and bridge plug in the step S2
Position of the wireless acquisition device in well.
Advantageous effect using above-mentioned further scheme is：Determine wireless acquisition device in well using ball seat or bridge plug
Position, make full use of existing apparatus as reference by location, very simply.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the subsurface environment parameter includes at least pressure parameter and temperature parameter.
Advantageous effect using above-mentioned further scheme is：Pressure parameter and temperature parameter are the important parameters of underground, are led to
The ambient condition of underground can be determined by crossing above-mentioned two parameter.
Based on the above technical solution, the present invention can also be improved as follows.
Further, further include after the step S4, step S5, by the subsurface environment in the wireless acquisition device
Parameter exports and carries out data analysis.
Advantageous effect using above-mentioned further scheme is：It is later stage downhole analysis and operation by analyzing downhole data
Data are provided to support.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the wireless acquisition device includes shell, and the data acquisition device sealing of the subsurface environment parameter is set
It sets in the shell.
Advantageous effect using above-mentioned further scheme is：The data acquisition device sealed set of the subsurface environment parameter
In the shell, it can be ensured that the stability and reliability of data acquisition device.
The present invention also provides data collecting system under a kind of smart well, including wireless acquisition device putting module, wirelessly adopt
Acquisition means location confirmation module, subsurface environment parameter collection module and wireless acquisition device recycling module,
The wireless acquisition device putting module, for launching wireless acquisition device in well；
The wireless acquisition device location confirmation module, for obtaining position of the wireless acquisition device in well；
The subsurface environment parameter collection module, the subsurface environment parameter for acquiring the position；
The wireless acquisition device recycling module, for recycling the wireless acquisition device from well.
The beneficial effects of the invention are as follows：The system of the present invention uses wireless acquisition device, need not be examined using optical fiber
Survey, avoid using place limitation caused by optical fiber, mobility is poor the problems such as, and with it is applied widely, easy to use, safeguard at
This low advantage.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the wireless acquisition device location confirmation module includes：Casing coupling number calculating section and position are true
Recognize module,
Described sleeve pipe box cupling number calculating section, the quantity for described sleeve pipe collar locator acquisition casing coupling；
The location confirmation module, for determining the nothing according to the quantity of described sleeve pipe box cupling and the length of single casing
Position of the line harvester in well；
Described sleeve pipe collar locator includes magnetic-inductive device and counter, when the wireless acquisition device is launched in well
When, the counter clear, the magnetic-inductive device often detects that a signal, the counter increase by 1.
Advantageous effect using above-mentioned further scheme is：By counter and magnetic-inductive device, nothing can be accurately determined
Position of the line harvester in well.
Further, the system also includes data analysis modules, are used for the subsurface environment parameter collection module
In subsurface environment parameter export and carry out data analysis.
Advantageous effect using above-mentioned further scheme is：It is later stage downhole analysis and operation by analyzing downhole data
Data are provided to support.
Description of the drawings
Fig. 1 is the control flow chart of collecting method under smart well of the present invention；
Fig. 2 is the specific control flow chart of step S2；
Fig. 3 uses schematic diagram for specific embodiments of the present invention；
Fig. 4 is the functional block diagram of data collecting system under smart well of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows：
1, wireless acquisition device, 2, at box cupling.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1：
As shown in Figure 1, in the present embodiment, collecting method under a kind of smart well includes the following steps,
Step S1, wireless acquisition device is launched in well；
Step S2, position of the wireless acquisition device in well is obtained；
Step S3, the subsurface environment parameter of acquisition position；
Step S4, wireless acquisition device is recycled from well；
Step S5, the subsurface environment parameter in wireless acquisition device is exported and carries out data analysis.
During pressure break oil well or the natural gas well, work progress is monitored for convenience, acquisition is needed to press
The related data of liquid is split as guidance or early warning, is tried to avert accidents.Project progress gathered data is followed using optical fiber, is needed
The built-in length of optical fiber is readjusted when gathered data, and takes out optical fiber after data acquisition is completed, and optical fiber stretches into length
It spends and the additional supplementary structure such as is difficult to accurately control, and needs casing, increase construction cost and time cost.Passing through will
Wireless acquisition device is put into oil well or the natural gas well, and according to specific needs, in fracturing process and pressure break is completed
Afterwards can real-time data collection, have the advantages that flexibility is high, additional equipment is not set, such as uses the auxiliary knot such as casing
Structure, need not carry out additional operation, such as the supplementary structures such as handling casing, advantageously reduce construction cost and time at
This.
By obtaining position of the wireless acquisition device in well, and the subsurface environment parameter of acquisition position, accurately reflect
The correspondence of position and downhole parameters is convenient for later stage Parameter analysis.
In the present embodiment, simultaneously transmission data is the common knowledge of those skilled in the art and is used to for wireless acquisition device acquisition
The content recorded according to this programme with technological means, those skilled in the art simultaneously needs to select suitable data acquisition according to specific
And above-mentioned function can be realized in transmission mode, does not repeat herein the concrete structure of wireless acquisition device and operation principle.
In bridge plug perforation combination operation process, when needing to seal bridge plug, bridge plug is blocked by being pumped into pressure break ball, by wireless collection
Device is designed as spherical shape, wireless acquisition device can be utilized to replace pressure break ball, increase the function of this programme, and reduce pressure break ball
Use, advantageously reduce the equipment use cost and equipment management cost in construction operation.
In a particular embodiment, wireless acquisition device is recycled from well can by water pump by wireless acquisition device from well
The analysis of later data is convenient in lower extraction.The process and principle that water pump extracts wireless acquisition device from underground out are led for this technology
The common technology in domain, the way of recycling of wireless acquisition device can be selected according to specific ambient conditions by implementing people.
Embodiment 2：
As shown in Figures 2 and 3, on the basis of above-described embodiment 1, in the present embodiment, wireless acquisition device includes casing
The concrete operations of collar locator, step S2 are：
Step S21, the quantity of casing collar locator (CCL) acquisition casing coupling；
Step S22, position of the wireless acquisition device in well is determined according to the length of the quantity of casing coupling and single casing
It sets.
Casing collar locator (CCL) includes that magnetic-inductive device and counter are counted when wireless acquisition device is launched in well
Device is zeroed, and magnetic-inductive device often detects that a signal, counter increase by 1.
Casing collar locator (CCL) casing collar locator (CCL) and counter, in coiled tubing fracturing work, casing coupling is fixed
Metal line density changes caused by position device can detect at the box cupling of oil pipe at 2 or radial hole, to measure coiled tubing
Depth of setting or wireless acquisition device where position.When at casing collar locator (CCL) detects box cupling 2 or radial hole,
Casing collar locator (CCL) will produce corresponding positioning signal, the positioning signal combination timer generated using casing collar locator (CCL)
The time of record can judge at box cupling the position of 2 or radial hole.Corresponding positioning signal is will produce according to pipe collar locator
Quantity, wireless acquisition device can be judged by box cupling 2 and/or the quantity of radial hole.2 spacing is multiplied by fixed at box cupling
The maximum quantity of position signal can be derived that the depth of setting of coiled tubing.2 spacing is multiplied by the quantity energy of positioning signal at box cupling
Enough judge the approximate depth of wireless acquisition device.Specified depth is reached convenient for control wireless acquisition device with this, and passes through nothing
Line harvester acquires the parameters such as pressure, the temperature of fracturing fluid of position.
In this fact Example, pressure parameter and temperature parameter are at least acquired.Wireless acquisition device includes shell, subsurface environment
The data acquisition device sealed set of parameter is inside the shell.Hydraulic pressure and the production of fracturing fluid can be detected in real time using pressure sensor
Raw pressure signal can detect the pressure of underground different location fracturing fluid in real time when wireless acquisition device moves.The present embodiment
In pressure sensor use the maturation existing pressure sensor usual in petroleum industry, concrete structure and operation principle are not
As the improvement of this programme, the content that those skilled in the art record according to this programme can realize said effect, herein not
The concrete structure and operation principle of pressure sensor are repeated.
The temperature of fracturing fluid can be detected using temperature sensor and generates temperature signal.In the present embodiment, temperature pass
Sensor uses the maturation existing temperature sensor usual in petroleum industry, and concrete structure and operation principle are not as this programme
Improvement, the content that those skilled in the art record according to this programme can realize said effect, herein not to temperature sensing
The concrete structure and operation principle of device are repeated.
For the ease of realize data acquisition, it is ensured that the stability and reliability of data acquisition device, make pressure sensor or
The probe of temperature sensor is contacted across the shell of wireless acquisition device with the external world, to enter oil well when wireless acquisition device
Or so that the probe of pressure sensor or temperature sensor is directly contacted with fracturing fluid after the natural gas well, it is accurate to obtain
Information.Sealing structure is set between probe and the shell of wireless acquisition device to prevent fracturing fluid from entering wireless acquisition device
It is internal.Sealing structure is sealed using glue or sealing element.Specific seal means are the conventional techniques of those skilled in the art, and
And not as the improvement of this programme, those skilled in the art select any sealing means can be realized according to specific needs
Effect is stated, the specific implementation mode of sealing structure and operation principle are not repeated herein.
Acceleration transducer may can also be arranged in outer in wireless acquisition device, can measure wireless acquisition device movement
When acceleration and generate acceleration signal.
Wireless acquisition device further includes velocity sensor, is measured when wireless acquisition device moves using velocity sensor
Speed simultaneously generates speed signal.
Data acquisition device is electrically connected with timer, using timer record wireless acquisition device enter under oil well when
Long and generation time signal combines the acceleration and/or speed that acceleration transducer measures according to the time of timer record
The speed that sensor measurement arrives calculates the displacement distance of wireless acquisition device, consequently facilitating understanding the depth that wireless acquisition device declines
Degree and position.After the position where determining wireless acquisition device, measured by pressure sensor and temperature sensor
Data judge the fracturing fluid pressure and temperature of the position to judge the recovery situation of down-hole pressure and temperature.
Acceleration transducer, velocity sensor and timer in the present embodiment are ripe usual under the conditions of the prior art
Not as the improvement of this programme, those skilled in the art remember according to this programme for technological means, concrete structure and operation principle
The content of load selects existing acceleration transducer, velocity sensor and timer that said effect can be realized, herein not pair plus
Velocity sensor, the concrete structure of velocity sensor and timer and operation principle are repeated.
In the present embodiment, casing collar locator (CCL) be those skilled in the art common knowledge, concrete structure and work
Make improvement of the principle not as this programme, does not go to live in the household of one's in-laws on getting married herein to the concrete structure of casing collar locator (CCL) and operation principle
It states.
In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
In a particular embodiment, the length of single casing is about 10 meters, by metal threaded between two neighboring casing
Connection sealing, before by wireless acquisition device dispensing to well, by the counter clear in wireless acquisition device, then nothing
Line harvester is launched into well, and casing collar locator (CCL) is metal threaded between detecting two casings, due to metal
Line density changes, and casing collar locator (CCL) detects at box cupling, and counter increases by 1；When counter technique be 50 when, at this time without
Depth of the line harvester in well is 50x10=500 meters, at this time the collected pressure parameter of wireless acquisition device and temperature ginseng
Number is exactly the corresponding parameter in 500 meters of positions.
In a particular embodiment, casing collar locator (CCL) can use magnetic-inductive device or the device of other similar functions.
Embodiment 3：
On the basis of above-described embodiment 1, in the present embodiment, it is equipped with ball seat or bridge plug in well, passes through ball seat in step S2
Position of the wireless acquisition device in well is obtained with the position of bridge plug.The position for making full use of existing ball seat and bridge plug, works as nothing
Line harvester reaches the position of ball seat or bridge plug, the subsurface environment parameter of acquisition position.
In the present embodiment, using the common knowledge that the position of ball seat and bridge plug is those skilled in the art, this programme changes
The location confirmation that ball seat and bridge plug are not lain in into point, is the position by the prior art, herein not to the position of ball seat and bridge plug
Confirm that operation principle is repeated.In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
Embodiment 4：
As shown in figure 4, data collecting system under a kind of smart well, including wireless acquisition device putting module, wireless collection
Setting position confirmation module, subsurface environment parameter collection module, wireless acquisition device recycling module and data analysis module,
Wireless acquisition device putting module, for launching wireless acquisition device in well；
Wireless acquisition device location confirmation module, for obtaining position of the wireless acquisition device in well；
Subsurface environment parameter collection module is used for the subsurface environment parameter of acquisition position；
Wireless acquisition device recycling module, for recycling wireless acquisition device from well；
Data analysis module, for being exported the subsurface environment parameter in subsurface environment parameter collection module and carrying out data
Analysis.
The system of the present embodiment uses wireless acquisition device, need not be detected using optical fiber, avoid leading using optical fiber
The problems such as place of cause limits, mobility is poor, and have the advantages that applied widely, easy to use, maintenance cost is low etc..
In the present embodiment, subsurface environment parameter collection module is electrically connected with data acquisition module, data transmission module, storage
Module and the power module that electric energy is provided for aforementioned modules carry out the collected data of data acquisition module using memory module
Storage.With this convenient for while data are spread out of or because of the feelings that wireless acquisition device is mobile and data is caused not spread out of in time
Under condition, collected data are stored, loss of data is avoided.Wireless acquisition device can be also arranged to be connect with memory module
Interface to read the data inside memory module with memory module external equipment is made.
In the present embodiment, using the common knowledge that memory module storage data are those skilled in the art, this programme changes
The structure and operation principle of memory module itself are not lain in into point, and those skilled in the art are according to specifically needing to select existing skill
Said effect can be realized in ripe memory module under the conditions of art, herein not to the concrete structure of memory module and operation principle into
Row repeats.In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
Embodiment 5：
On the basis of the above embodiments, in the present embodiment, the shelling machine of wireless acquisition device be spherical, spheroid shape or
Capsule-type.Capsule-type is the shape that centre is cylinder, both ends are hemisphere.It is spherical, ellipse by the shelling machine of wireless acquisition device
Ball-type or capsule-type can utilize the outer surface of arc that impact force is made to disperse, and reduce resistance when wireless acquisition device movement.This
In embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. collecting method under a kind of smart well, it is characterised in that：Include the following steps,
Step S1, wireless acquisition device is launched in well；
Step S2, position of the wireless acquisition device in well is obtained；
Step S3, the subsurface environment parameter of the position is acquired；
Step S4, the wireless acquisition device is recycled from well.
2. collecting method under a kind of smart well according to claim 1, it is characterised in that：The wireless acquisition device
Including casing collar locator (CCL), the concrete operations of the step S2 are：
Step S21, the quantity of described sleeve pipe collar locator acquisition casing coupling；
Step S22, determine the wireless acquisition device in well according to the length of the quantity of described sleeve pipe box cupling and single casing
Position.
3. collecting method under a kind of smart well according to claim 2, it is characterised in that：Described sleeve pipe box cupling positions
Device includes magnetic-inductive device and counter, when the wireless acquisition device is launched in well, the counter clear, and the magnetic
Sensing device often detects that a signal, the counter increase by 1.
4. collecting method under a kind of smart well according to claim 1, it is characterised in that：Ball seat is equipped in the well
Or bridge plug, position of the wireless acquisition device in well is obtained by the position of ball seat and bridge plug in the step S2.
5. collecting method under a kind of smart well according to any one of claims 1 to 4, it is characterised in that：The well
Lower environmental parameter includes at least pressure parameter and temperature parameter.
6. collecting method under a kind of smart well according to any one of claims 1 to 4, it is characterised in that：The step
Further include that step S5, the subsurface environment parameter in the wireless acquisition device is exported and carries out data analysis after rapid S4.
7. the intelligent downhole data of collecting method acquires system under a kind of smart well using any one of claim 1 to 6
System, it is characterised in that：Including wireless acquisition device putting module, wireless acquisition device location confirmation module, subsurface environment parameter
Acquisition module and wireless acquisition device recycling module,
The wireless acquisition device putting module, for launching wireless acquisition device in well；
The wireless acquisition device location confirmation module, for obtaining position of the wireless acquisition device in well；
The subsurface environment parameter collection module, the subsurface environment parameter for acquiring the position；
The wireless acquisition device recycling module, for recycling the wireless acquisition device from well.
8. data collecting system under smart well according to claim 7, it is characterised in that：The wireless acquisition device position
Confirmation module includes：Casing coupling number calculating section and location confirmation module,
Described sleeve pipe box cupling number calculating section, the quantity for described sleeve pipe collar locator acquisition casing coupling；
The location confirmation module described is wirelessly adopted for being determined according to the quantity of described sleeve pipe box cupling and the length of single casing
Position of the acquisition means in well；
Described sleeve pipe collar locator includes magnetic-inductive device and counter, when the wireless acquisition device is launched in well,
The counter clear, the magnetic-inductive device often detect that a signal, the counter increase by 1.
9. data collecting system under smart well according to claim 7 or 8, it is characterised in that：The system also includes numbers
According to analysis module, for the subsurface environment parameter in the subsurface environment parameter collection module to be exported to and carried out data point
Analysis.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN201635727U (en) * | 2010-04-20 | 2010-11-17 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Underground construction monitor for bottom hole wireless data transmission in continuous coiled tubing operation |
| CN102226392A (en) * | 2011-06-01 | 2011-10-26 | 中国石油天然气股份有限公司 | Multi-parameter monitoring device of oil well and working method thereof |
| CN203847098U (en) * | 2014-04-30 | 2014-09-24 | 张洪新 | Underground temperature and pressure parameter measurement device |
| CN105041298A (en) * | 2015-07-28 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Device and method for wirelessly positioning depths of strings in real time during coiled tubing operation |
| CN106481330A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of downhole monitoring system |
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Address after: 610000 No.704, floor 7, building 1, No.167, Jinlu Second Road, Wuhou New Town Management Committee, Wuhou District, Chengdu City, Sichuan Province Applicant after: VERTECHS OIL & GAS TECHNOLOGY Co.,Ltd. Address before: 610000 No. 1-1, No. 1, No. 1, No. four, Wuhou District people south road, Chengdu, Sichuan Province, No. 1-1 24 layer 1-3 Applicant before: VERTECHS OIL & GAS TECHNOLOGY Co.,Ltd. |
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Application publication date: 20181113 |