CN107152273A - A kind of drilling well acquisition parameter IC floats transmit reading system - Google Patents
A kind of drilling well acquisition parameter IC floats transmit reading system Download PDFInfo
- Publication number
- CN107152273A CN107152273A CN201610131460.7A CN201610131460A CN107152273A CN 107152273 A CN107152273 A CN 107152273A CN 201610131460 A CN201610131460 A CN 201610131460A CN 107152273 A CN107152273 A CN 107152273A
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- float
- floats
- coil
- electronic tags
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 59
- 210000002445 nipple Anatomy 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000004064 recycling Methods 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 7
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000013480 data collection Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Earth Drilling (AREA)
Abstract
Reading system is transmitted the present invention relates to a kind of drilling well acquisition parameter IC floats, by wireless data sending and IC readers, IC floats recycling network and coil, wireless data sending receiver, Receiving Host, drilling well and geologic parameter detector, IC electronic tags float delivers pipe nipple, IC electronic tags float is constituted, solve the problem of downhole data collection transmission of puzzlement drilling well industry for many years is difficult, overcome wireless drilling equipment and instrument expensive, transmit digit rate low, stream time is short, high is required to drilling mud, equipment overhaul cycle is short, complicated construction technique, the drawback such as construction team is huge, whole system equipment and instrument do not have consumable accessory, maintenance management is convenient, it is reusable, use cost is low, a variety of drilling wells and geologic parameter can be gathered, popularization and application will improve drilling well production technology level.
Description
Technical field：
The present invention relates to prospecting instrument apparatus field, specifically a kind of drilling well acquisition parameter Transmission system.
Background technology：
, it is necessary to understand the operating mode of drilling tool itself, such as well in real time in geological drilling, oil drilling work progress
Tiltedly, the drilling parameter data such as orientation, in addition it is also necessary to by the lithology of apparatus measures drilled strata, oil-containing, aqueous
Deng geologic parameter data, analyzed by the integrated data to detection, control gets out optimal well-drilling borehole rail
Mark, saves exploration cost, improves oil well recovery ratio.At present, there are various forms of parameter transmission sides both at home and abroad
Formula, there is electronic cable single-point acquiring, and multipoint instrument cylinder throws collection, and wireline logging collection, also drilling well are joined
Number MWD Radio Transmission Technologys and electromagnetic wave are wirelessly transferred, and the wireless orientation drills of LWD are carried out on this basis
Well, wherein：MWD is to gather downhole parameters by drilling mud pulse to be transferred to ground, and data are passed
Defeated speed is low.Electromagnetic wave Radio Transmission Technology is by installing wireless signal generating means in underground, by underground
Instrument acquisition parameter be transferred to ground, its transmission rate is relatively higher, but by well depth and mud and geology
Situation is limited；Electronic cable single-point acquiring is, it is necessary to stop brill cable reel tripping in electronic instrument in drilling tool；
Originally wireline logging collection is needed the drilling tool in well, and tripping in instrument is gathered in uncased wellbore；MWD be with
Bore real-time data acquisition, but due to drilling well well depth, mud pressure is high, flow velocity is fast, mud property is complicated, MWD
Mud-pulse is wirelessly transferred instrument complexity, expensive, serious wear, limited battery life, to drilling well mud
Slurry and construction parameter require high, it is desirable to have professional technical contingent is constructed and maintenance management, for normal
Well wellbore construction is advised, drilling cost is too high, it is difficult to penetration and promotion；Electromagnetic wave Radio Transmission Technology by well depth,
Mud property and geological environment etc. influence, it is also difficult to large-scale promotion application.
The content of the invention：
It is contemplated that in providing a kind of drilling well acquisition parameter IC floats transmission reading system, in drilling process
The drilling parameter of underground can be read, reduction stops boring and the operation that makes a trip, and equipment loss is low, maintenance management side
Just, it is easy in drilling well industry large-scale promotion.
Technical scheme is as follows：
Such a drilling well acquisition parameter IC floats transmit reading system, are floated by wireless data sending and IC readers, IC
Sub- recycling network and coil, wireless data sending receiver, Receiving Host, drilling well and geologic parameter detector, IC electricity
Subtab float delivers pipe nipple, IC electronic tags float composition, and its structure assembled relation is as follows：Bored in underground
Tool top is set by the drilling well encapsulated without magnetic tube post and geologic parameter detector, and it is made up of a variety of instruments, often
Planting instrument has specific hardware address code, and female box cupling of no magnetic tube post is provided with signal cable ring, connect thereon
There is IC electronic tag float of the public access hoop provided with signal cable ring to deliver pipe nipple, the signal cable ring of two box cuplings
Wire is close together, and IC electronic tags float is delivered to be provided with pipe nipple on IC electronic tag floats, pipe nipple and connect
There are some drilling tool strings to extend to ground from underground, in mud of the ground drill between well head to mud vibrating screen
Overhead tube seat is provided with IC floats recycling network and coil, has been connected thereto wireless data sending and IC readers,
Wireless data sending receiver is provided with well house, it is connected to Receiving Host by signal cable.
In wellbore construction, first drill bit and bottom drill tool are gone into the well, and will be equipped with drilling well and geologic parameter detection
Instrument without start battery in magnetic tube post, drilling tool will be connected without magnetic tube post and gone into the well, then by IC electronic tags float throw
Put pipe nipple and connect to link closely and go into the well, all drilling tool orders are gone into the well into connection until ground, connects tap, even
The stock pump that grafts clay starts drilling well, and the drilling well of underground and geologic parameter detector acquisition instrument are started working, and collection is bored
Well well operating mode and surrounding geologic parameter, by the parameter of these different addresses code instrument output by modulating-coding,
Pipe nipple is delivered by passing to IC electronic tags float by signal cable ring without magnetic tube post, by single chip microcomputer circuit board
Data are stored in memory chip, take timing or termination of pumping control mode that parameter collection Info is write into IC electronics marks
Sign in float, then pipe nipple is delivered by electronic tag float and deliver IC electronic tag floats, IC electronic tag floats
Ground is returned to from shaft bottom under the carrying of return mud in bore hole annulus outside drilling tool, is entered from mud elevated trough
IC floats recycling network and coil are picked up by net, and read information by wireless data sending and IC readers, by wireless
Number is sent to far away from the wireless data sending receiver in well house, and Receiving Host is transmitted a signal to by it.
Structure of the present invention is novel, solves the problem of downhole data collection transmission of puzzlement drilling well industry for many years is difficult,
Overcome wireless drilling equipment and instrument costliness, transmission digit rate is low, stream time is short, will to drilling mud
The drawback, whole system equipment such as ask height, short equipment overhaul cycle, complicated construction technique, construction team huge
And instrument does not have consumable accessory, maintenance management is convenient, and reusable, use cost is low, can gather a variety of brills
Well and geologic parameter, popularization and application will improve drilling well production technology level.
Brief description of the drawings：
Fig. 1 is general structure schematic diagram of the invention.
Fig. 2 delivers pipe nipple structural representation for the IC electronic tags float of the present invention.
Fig. 3 is IC floats recycling network and coil schematic diagram of the invention.
Embodiment：The implementation of the present invention is described further below in conjunction with accompanying drawing.
As shown in figure 1, a kind of drilling well acquisition parameter IC floats transmission reading system of the invention, by wireless data sending
And IC readers 1, IC floats recycling network and coil 2, wireless data sending receiver 3, Receiving Host 4, drilling well
And geologic parameter detector 5, IC electronic tags float are delivered pipe nipple 6, IC electronic tags float 7 and constituted.
Wherein：Receiving Host 4 is that computer is equipped with communication interface and control analysis software, or is set for single-chip microcomputer
Circuits control panel.
Wireless data sending and the inside of IC readers 1 and wireless data sending receiver 3 provided with wireless data signal transmitting and
Reception device, can carry out wireless signal communication.
Drilling well and geologic parameter detector 5 are many kinds of parameters detecting instrument, including：
Detect drilling parameter：Hole deviation, orientation, pressure, temperature, frictional resistance, mud property, gas detection
Instrument, formation hardness etc..
Detect geologic parameter：Resistivity, oil-containing, aqueous, fluorescence, trace element analysis, chromatograph, put
Penetrating property, isotope, microorganism etc..
The overhead tube seat B of mud vibrating screen A, mud is drill rig components in Fig. 1.
As shown in Fig. 2 IC electronic tags float delivers pipe nipple 6 by IC read write lines coil cable 8, ejection electricity
Magnet 9, IC read write lines coil 10, IC electronic tags float 7, throw-over catch door 11, ejection electromagnet cable
12nd, label float cabin 13, nut and top cylinder 14, leading screw 15, magnetic shaft coupling 16, stepper motor 17,
Instrument room 18, single chip microcomputer circuit board 19, flowing inductor 20, battery 21, parameter detecting signal cable 22,
Signal cable connecting ring 23 is constituted, and its structure assembled relation is as follows, and IC electronic tags float delivers pipe nipple 6 and is
One metal tubing string two ends is respectively equipped with pin end and female box cupling, is provided with and is spaced in this body side surface of pipe nipple
Instrument room 18 and label float cabin 13, the single chip microcomputer circuit board provided with connection battery 21 in the instrument room 18
19, single chip microcomputer circuit board 19 is provided with single-chip microcomputer, clock chip and memory chip, and it is believed by parameter detecting
Number cable 22 connects the signal cable connecting ring 23 for being arranged on public access end surface, and it passes through IC read write line coils
The connection IC read-write coils 10 of cable 8, it launches electromagnet 9 by launching the connection of electromagnet cable 12, its
It is connected by cable with flowing inductor 20, single chip microcomputer circuit board 19 is connected with stepper motor 17, stepping electricity
The motor shaft of machine 17 is connected with magnetic shaft coupling 16, and magnetic shaft coupling 16 is made up of two magnetic original papers, its
In a magnetic original paper be arranged in instrument room 18, another magnetic original paper is arranged on the label float being separated by with it
In cabin 13；Label float cabin 13 is the opening cabin of a lateral opening, is connected with the annular space mud outside pipe nipple
Logical, the bottom of label float cabin 13 is provided with a magnetic original paper of magnetic shaft coupling 16, which is provided with leading screw 15,
The threads of lead screw of leading screw 15 is connected with nut and top cylinder 14, and the termination of leading screw 15 is provided with one end feed rod, and feed rod is set
There is bearing, bearing block is fixed on the bulkhead in label float cabin 13, if being stacked with nut and top cylinder 14
Dry IC electronic tags float 7 is relative provided with two throw-over catch doors 11, throw-over catch at uppermost float
11 sides of door are provided with axle, and resilient spring, throw-over catch door 11 and are correspondingly provided with IC read write lines coil 10,
11 upper end sides of throw-over catch door are provided with the opening of half arc, and the inboard of opening is provided with ejection magnet 9.
During wellbore construction, under the driving of slush pump, mud flows through out of drilling tool pipe at high speed in drilling tool,
Flowing inductor 20 senses that mud flows, and single chip microcomputer circuit board 19 is sent to by electric signal, and monolithic is electromechanical
Road plate 19 is received by transmitting without magnetic tube column parameter signal cable connecting ring 23 and parameter detecting signal cable 22
Signal is gathered, by clock control timing acquiring, gathered data and time are stored in single chip microcomputer circuit board 19
In internal memory, when having beaten, a drilling tool is single, connect next drilling tool it is single when, ground control termination of pumping connect drilling tool,
At this moment the mud in drilling tool stops flowing, flows inductor 20 by termination of pumping information transmission to single chip microcomputer circuit board 19,
Single chip microcomputer circuit board 19 controls stepper motor 17 and connected magnetic shaft coupling 16 to turn an angle,
Magnetic shaft coupling 16 in corresponding label float cabin 13 also concomitant rotation, it drives leading screw 15 to rotate,
Leading screw 5 rotate drive nut and top cylinder 14 rotate move ahead, by IC electronic tags float 7 from throw-over catch door 11
Ejection, throw-over catch door 11 resets under the effect of door-hinge elastic force, at this moment, the close read-write of IC electronic tags float 7
The information of memory storage is passed through IC read write lines coil 10 by device coil 10, the control system of single chip microcomputer circuit board 19
Write information into IC electronic tags float 7, then, control ejection mechanism 9 will write the IC electricity of information
Subtab float 7 is sprung into the mud of annular space, after ground, which connects finishing drilling, has single, turn on pump drilling, drilling well mud
Slurry flows through the drill bit in shaft bottom out of drilling tool, is returned from bore hole annulus, carries IC electronic tags float 7 from well
Under gradually return to ground, IC electronic tags float 7 flows through from the overhead tube seat B of mud, into IC floats reclaim
Net and in, when rig termination of pumping next time, system control again IC electronic tags float deliver pipe nipple 6 act,
Complete information transmission next time.
Single chip microcomputer circuit board 19 can also be arranged to timing dispensing pattern, and each certain time interval carries out one
It is secondary to deliver.
Flowing inductor 20 is blade-carrying turbine pulse transducer, and when there is fluid to pass through, signal is passed
To single chip microcomputer circuit board 19.
Float ejection mechanism in Fig. 2 shown in A-A sections, by the connecting rod with magnet and ejection electromagnet 9
Its constitute, when ejection electromagnet 9 add some points generation magnetic it is identical with connecting rod magnet polarities, repulsion connecting rod one end
Open, when IC electronic tags float 7 is ejected, system is inhaled to ejection electromagnet 9 plus opposite electrode
Draw connecting rod magnet, IC electronic tags float 7 is ejected.
As shown in figure 3, wireless data sending and IC readers 1 and IC floats recycling network and coil 2 are arranged on mud
Starch on overhead tube seat B, IC floats recycling network and coil 2 are provided with mesh, and the warp of net is coil, per adjacent
Two warps composition coil be connected to respectively by cable in wireless data sending and IC readers 1, the electricity in it
Road plate control, timing carries out high-frequency signal reading to every group of coil one by one, when the IC electronics returned up from underground
After label float 7 is intercepted by grid, high-frequency signal can therefrom reading electronic labels IC information, by wireless
Signal is wirelessly transmitted to the wireless data sending receiver 3 and Receiving Host 4 of distant place by number biography and IC readers 1,
Time and well depth relation of the Receiving Host 4 according to surface seismic records, the data that underground is gathered are corresponding with well depth to be risen
Come, while Receiving Host 4 sends alarm signal, point out staff to remove live IC floats recycling network and coil
IC electronic tags float 7 is taken out in net, IC electronic tags float 7 is reclaimed clean, when pulling out of hole by C
Electronic tag float deliver pipe nipple 6 from well originally after, by instrument room 18 open change battery, label is floated
Sub- cabin 13 is cleaned and is put into IC electronic tags float 7 one by one from the opening of half arc, you can under next time
Well is reused.
Claims (3)
1. a kind of drilling well acquisition parameter IC floats transmit reading system, as shown in figure 1, by wireless data sending and
IC readers (1), IC floats recycling network and coil (2), wireless data sending receiver (3), Receiving Host (4), brill
Well and geologic parameter detector (5), IC electronic tags float deliver pipe nipple (6), IC electronic tags float (7) group
Into its structure assembled relation is as follows：Drilling well by being encapsulated without magnetic tube post and geology are set above down-hole equipment
Parameter detecting instrument (5), it is made up of a variety of instruments, and every kind of instrument has specific hardware address code, no magnetic tube post
Female box cupling be provided with signal cable ring (23), connected thereon public access hoop provided with signal cable ring (23) IC electricity
Subtab float delivers pipe nipple (6), and the signal cable ring wire (23) of two box cuplings is close together, IC electronics marks
Some drilling tool strings are connected to provided with IC electronic tags float (7) in label float dispensing pipe nipple (6), on pipe nipple from underground to prolong
Ground is reached, IC floats are provided with the overhead tube seat of mud of the ground drill between well head to mud vibrating screen
Recycling network and coil (2), have been connected thereto wireless data sending and IC readers (1), are being provided with well house without line number
Receiver (3) is passed, it is connected to Receiving Host (4) by signal cable.
2. a kind of drilling well acquisition parameter IC floats transmission reading system according to claim 1, such as Fig. 2
Shown, IC electronic tags float delivers pipe nipple (6) and reads and writes coil cable (8), ejection electromagnet (9), IC by IC
Read write line coil (10), IC electronic tags float (7), throw-over catch door (11), ejection electromagnet cable (12), mark
Sign float cabin (13), nut and top cylinder (14), leading screw (15), magnetic shaft coupling (16), stepper motor (17), instrument
Device cabin (18), single chip microcomputer circuit board (19), flowing inductor (20), battery (21), parameter detecting signal cable (22),
Signal cable connecting ring (23) is constituted, and its structure assembled relation is as follows, and IC electronic tags float delivers pipe nipple (6)
Pin end and female box cupling are respectively equipped with for a metal tubing string two ends, is provided with to each other in this body side surface of pipe nipple
Every instrument room (18) and label float cabin (13), the monolithic provided with connection battery (20) in the instrument room (18) is electromechanical
Road plate (19), single chip microcomputer circuit board (19) is provided with singlechip chip, clock chip and memory chip, and it passes through
Parameter detecting signal cable (22) connects the signal cable connecting ring (23) for being arranged on public access end surface, and it passes through IC
Read write line coil cable (8) connection IC read-write coils (10), it is by launching electromagnet cable (12) connection ejection
Electromagnet (9), it is connected by cable with flowing inductor (20), and single chip microcomputer circuit board (19) is connected with stepping electricity
Machine (17), the motor shaft of stepper motor (17) is connected with magnetic shaft coupling (16), and magnetic shaft coupling (16) is by two magnetic
Original paper is constituted, and one of magnetic original paper is arranged in instrument room (18), and another magnetic original paper is arranged on to be separated by with it
Label float cabin (13) in；Label float cabin (13) is the opening cabin of a lateral opening, outside pipe nipple
Annular space mud UNICOM, the bottom in label float cabin (13) is provided with a magnetic original paper of magnetic shaft coupling (16), thereon
Provided with leading screw (15), the threads of lead screw of leading screw (15) is connected with nut and top cylinder (14), and leading screw (15) termination is provided with one
Feed rod is held, feed rod is provided with bearing, and bearing block is fixed on the bulkhead in label float cabin (13), in nut and top cylinder
(14) several IC electronic tags floats (7) are stacked with, it is relative provided with two revolutions at uppermost float
Door (11) is kept off, throw-over catch door (11) is provided with axle, and resilient spring, throw-over catch door (11) and is correspondingly provided with sideways
IC read write lines coil (10), throw-over catch door (11) upper end side is provided with the opening of half arc, and the inboard of opening is provided with
Launch magnet (9).
3. a kind of drilling well acquisition parameter IC floats transmission reading system according to claim 1, such as Fig. 3
Shown, wireless data sending and IC readers (1) and IC floats recycling network and coil (2) are arranged on the overhead tube seat of mud
On B, IC floats recycling network and coil (2) are provided with mesh, and the warp of net is coil, per two adjacent warps
Composition coil is connected in wireless data sending and IC readers (1) by cable respectively, the circuit board control in it,
Timing carries out high-frequency signal reading to every group of coil one by one, when the IC electronic tags float (7) returned up from underground
After being intercepted by grid, high-frequency signal can therefrom reading electronic labels IC information, pass through wireless data sending and IC
Signal is wirelessly transmitted to the wireless data sending receiver (3) and Receiving Host (4) of distant place, Receiving Host by reader (1)
(4) alarm signal is sent, points out the staff in well house to go in live IC floats recycling network and coil (2) net to take
Go out IC electronic tags float (7), IC electronic tags float (7) recovery of taking-up can be put into label float after cleaning
Reuse in cabin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131460.7A CN107152273A (en) | 2016-03-04 | 2016-03-04 | A kind of drilling well acquisition parameter IC floats transmit reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131460.7A CN107152273A (en) | 2016-03-04 | 2016-03-04 | A kind of drilling well acquisition parameter IC floats transmit reading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107152273A true CN107152273A (en) | 2017-09-12 |
Family
ID=59791690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610131460.7A Pending CN107152273A (en) | 2016-03-04 | 2016-03-04 | A kind of drilling well acquisition parameter IC floats transmit reading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152273A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594944A (en) * | 2018-12-18 | 2019-04-09 | 中国石油集团川庆钻探工程有限公司 | Microballoon formula measuring instrument is pre-stored and the automatic method for releasing in underground and device |
| CN111594151A (en) * | 2019-02-19 | 2020-08-28 | 中国石油化工股份有限公司 | Underground information transmission system |
| US11982176B2 (en) | 2022-01-26 | 2024-05-14 | Saudi Arabian Oil Company | Systems and methods for monitoring annular fluid level |
-
2016
- 2016-03-04 CN CN201610131460.7A patent/CN107152273A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594944A (en) * | 2018-12-18 | 2019-04-09 | 中国石油集团川庆钻探工程有限公司 | Microballoon formula measuring instrument is pre-stored and the automatic method for releasing in underground and device |
| CN111594151A (en) * | 2019-02-19 | 2020-08-28 | 中国石油化工股份有限公司 | Underground information transmission system |
| US11982176B2 (en) | 2022-01-26 | 2024-05-14 | Saudi Arabian Oil Company | Systems and methods for monitoring annular fluid level |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170912 |
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| WD01 | Invention patent application deemed withdrawn after publication |