CN203729985U - Underground measurement while drilling assembly - Google Patents
Underground measurement while drilling assembly Download PDFInfo
- Publication number
- CN203729985U CN203729985U CN201320753255.6U CN201320753255U CN203729985U CN 203729985 U CN203729985 U CN 203729985U CN 201320753255 U CN201320753255 U CN 201320753255U CN 203729985 U CN203729985 U CN 203729985U
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- Prior art keywords
- gamma
- inserting tube
- pipe nipple
- dhm
- electromagnetic wave
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 title abstract description 7
- 238000005259 measurement Methods 0.000 title abstract description 7
- 210000002445 nipple Anatomy 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 230000005251 gamma ray Effects 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
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- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- ZDHURYWHEBEGHO-UHFFFAOYSA-N potassiopotassium Chemical compound [K].[K] ZDHURYWHEBEGHO-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses an underground measurement while drilling assembly, which mainly solves the problem that by means of existing underground measurement while drilling assemblies, a standard layer cannot be easily and accurately selected due to the influence of the properties of the stratum and downhole fluids on the existing underground measurement while drilling assemblies. The underground measurement while drilling assembly comprises an underground instrument and a ground system. The underground instrument comprises a non-magnetic suspension drill collar nipple (1), a pulse generator (2), a directional exploring tube (3), an electromagnetic wave resistivity logging nipple and a power supply module. The underground instrument also comprises a gamma exploring tube (4), wherein the front end of the gamma exploring tube is connected with the directional exploring tube (3) and the rear end of the gamma exploring tube is connected with the electromagnetic wave resistivity logging nipple through a cross-core stabilizer (5). The gamma exploring tube (4) comprises an aviation plug connecting wire (41) connected with the directional exploring tube (3), a main control circuit board (42) connected with the aviation plug connecting wire (41), a gamma detection module, a scintillation counter and a photomultiplier, wherein the gamma detection module, the scintillation counter and the photomultiplier are controlled by the main control circuit board (42).
Description
Technical field
The utility model belongs to a kind of DHM-MWD instrument, specifically, relates to a kind of DHM-MWD assembly.
Background technology
In order to solve RESERVOIR RECOGNITION and the geosteering problem in complex hydrocarbon resources exploration process, need to use with boring geologic parameter measuring system, to realize, directional well, horizontal well track and reservoir characteristics Real-Time Monitoring have been and guided to hole trajectory control.In prior art, the downhole instrument of DHM-MWD assembly mainly comprises the parts such as impulse generator, directed inserting tube, power module, non-magnetcisuspension extension drill collar pipe nipple, electromagnetic wave resistivity logging pipe nipple, function is the description of drilling tool attitude and transfer function, comprise hole deviation, orientation, tool-face, temperature of survey mark etc., but, existing downhole instrument measurement is affected by stratum and borehole fluid character, typical floor is not easy accurate selection, and then has caused the data such as hole deviation that directed inserting tube measures, orientation, tool-face, temperature and actually differed larger.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect, and a kind of compact conformation, the reasonable in design and DHM-MWD assembly that not affected by stratum and borehole fluid character are provided.
To achieve these goals, the technical solution adopted in the utility model is as follows:
DHM-MWD assembly, comprise downhole instrument and ground system, wherein, downhole instrument comprises non-magnetcisuspension extension drill collar pipe nipple, be installed on non-magnetcisuspension and hang the impulse generator in drill collar pipe nipple, measure bore parameters also for the every bore parameters measuring is processed coding, the directed inserting tube of clamp-pulse generator terrestrial system transmitted signal, electromagnetic wave resistivity logging pipe nipple, and be impulse generator, the power module of directed inserting tube and the power supply of electromagnetic wave resistivity logging pipe nipple, downhole instrument also comprises that front end is connected with directed inserting tube, the gamma inserting tube that rear end is connected with electromagnetic wave resistivity logging pipe nipple by punching centralizer, this gamma inserting tube comprises the aviation plug connecting line being connected with directed inserting tube, practice with this aviation plug the main control board that level line is connected, and the gamma detection module that controlled by main control board, scintillation counter and photomultiplier.
Further, described gamma inserting tube also comprises resistance to compression cylinder, and described aviation plug connecting line, main control board gamma detection module, scintillation counter and photomultiplier are all arranged in resistance to compression cylinder.
Further, at resistance to compression cylinder, near the end, one end of directed inserting tube, be also provided with dust cap.
Wherein, described ground system comprises the standpipe pressure sensor of the pulse signal sending for received pulse generator, the decoding case being connected with standpipe pressure sensor, and the Industrial Personal Computer (IPC) being connected with this decoding case.
Further, described ground system also comprises the wireless driller's display with Industrial Personal Computer (IPC) wireless connections.
Compared with prior art, the beneficial effects of the utility model are:
(1) the utility model structure design is compact, reasonable, and it is convenient to realize.
(2) the utility model is provided with a gamma inserting tube between directed inserting tube and electromagnetic wave resistivity logging pipe nipple, by this gamma inserting tube, measure the radionuclide (K naturally existing in rock in wellhole section, U, Th etc.) the gamma ray intensity size radiating in nuclear decay process, determine lithological profile, estimate shale content and carry out Strata Comparison, simultaneously, gamma inserting tube receives after the irradiation of rock natural radiation line, the electric pulse number that output is directly proportional to received signal, according to this electric pulse number, obtain the gamma ray quantity in this region, then draw out the log of standard, it is not affected by stratum and borehole fluid character, typical floor easily selects, being particularly useful for profit is excessively with.
(3) the utility model compared with prior art, not only possesses novelty and creativeness, and its material is common material, cheap, possesses very high practicality and the market competitiveness, for it, applies on a large scale, has established solid foundation.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model.
Fig. 2 is the structural representation of the gamma inserting tube in the utility model.
Wherein, the non-magnetcisuspension of the corresponding title of Reference numeral: 1-is hung drill collar pipe nipple, 2-impulse generator, the directed inserting tube of 3-, 4-gamma inserting tube, 5-punching centralizer, 6-standpipe pressure sensor, the 7-case of decoding, 8-Industrial Personal Computer (IPC), 9-is wireless driller's display, 41-aviation plug connecting line, 42-main control board, 43-resistance to compression cylinder, 44-dust cap, 45-gamma detection module.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.Embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, 2, the present embodiment provides a kind of DHM-MWD assembly, comprises downhole instrument and ground system.Wherein, downhole instrument comprises non-magnetcisuspension extension drill collar pipe nipple 1, be installed on non-magnetcisuspension and hang the impulse generator 2 in drill collar pipe nipple 1, measure bore parameters and also for the every bore parameters measuring, process the directed inserting tube 3 of coding, clamp-pulse generator terrestrial system transmitted signal, electromagnetic wave resistivity logging pipe nipple, and be the power module of impulse generator, directed inserting tube 3 and the power supply of electromagnetic wave resistivity logging pipe nipple.
Impulse generator, selects reciprocal vibrating type normal pressure mud pulse generator, and it is mainly comprised of rotor assembly, brshless DC motor, flow switch and control circuit etc.Impulse generator transmits requirement according to the data of main control module in directed inserting tube, by ordering the Reciprocative switch of its rotor to form positive pressure pulse sequence, by mud, be sent to the standpipe pressure sensor in the circulation route of ground, standpipe pressure sensor receives pulse train and is sent to decoding case.
The effect that non-magnetcisuspension is hung drill collar pipe nipple is mainly, for magnetic inclinometer provides a working environment that there is no magnetic disturbance, to prevent the impact of drill string magnetic field on magnetic inclinometer.
Directed inserting tube is mainly by orientation survey functional module, the corn module such as power supply supply and main control module form, the key components of wherein orientation survey functional module comprises three axle accelerators, the triaxial magnetometer by world-renowned manufacturer production, be measure well stratigraphic well tiltedly, the core components and parts of orientation and tool-face.The technology that directed inserting tube is existing maturation, therefore, the present embodiment does not repeat.
Power module, for impulse generator, directed inserting tube 3 and electromagnetic wave resistivity logging pipe nipple provide electric energy.Every battery is composed in series by 10 joint 3.6V DD type high-temperature lithium thionyl chloride battery cores, altogether 36V.After battery series connection, pack in glass fibre reinforced plastics casing, vacuumize and pour into high strength casting glue, can bear down-hole high vibration and twist and warping moment.Power module is the technology of existing maturation, and therefore, the present embodiment does not repeat.
Electromagnetic wave resistivity logging pipe nipple, provides real-Time Compensation to measure, and measure in time, eliminate the impact that mud is invaded, and the impact of eliminating pit shaft factor improves the precision of data.Can be applied to various types of wells, can carry out geosteering, well correction, pore pressure trend analysis, casing setting depth selection, replace well logging, trip-out logging operation etc.Electromagnetic wave resistivity logging pipe nipple is the technology of existing maturation, and therefore, the present embodiment does not repeat.
Further, in the present embodiment, downhole instrument also comprises that front end is connected with directed inserting tube 3, the gamma inserting tube 4 that rear end is connected with electromagnetic wave resistivity logging pipe nipple by punching centralizer 5, this gamma inserting tube 4 comprises the aviation plug connecting line 41 being connected with directed inserting tube 3, practice with this aviation plug the main control board 42 that level line 41 is connected, and the gamma detection module 45, scintillation counter and the photomultiplier that controlled by main control board 42.
Further, gamma inserting tube 4 also comprises resistance to compression cylinder 43, and aviation plug connecting line 41, main control board 42 gamma detection modules, scintillation counter and photomultiplier are all arranged in resistance to compression cylinder 43.At resistance to compression cylinder 43, near the end, one end of directed inserting tube 3, be also provided with dust cap 44.
Gamma inserting tube is measured the gamma ray intensity size that in wellhole section, in rock, the radionuclide (K, U, Th etc.) of existence radiates in nuclear decay process naturally, determines lithological profile, estimates shale content and carries out Strata Comparison.As inner a large amount of potassium (potassium) and other radioactive element of containing of traditional nonreservoir shale (Shale), the gamma ray quantity (count) that gamma inserting tube detects is just relatively high.And rock radioactive element is less in reservoir, the gamma ray quantity that gamma inserting tube detects is relatively just lower, according to above-mentioned principle, gamma inserting tube receives after the irradiation of rock natural radiation line, the electric pulse number that output is directly proportional to received signal, according to the degree of depth of degree of depth tracking system record, by borehole size, mud balance, drill collar material are revised, obtain the gamma ray quantity in this region, then draw out the log of standard, it is not affected by stratum and borehole fluid character, and typical floor easily selects, and is particularly useful for profit and is excessively with.
In the present embodiment, scintillation counter and photomultiplier in gamma inserting tube are sturdy and durable, have guaranteed accuracy and the promptness of gamma detection, and scintillation counter and photomultiplier are responsible for the natural gamma data that record to be converted to the output of API unit data.
Ground system completes the collection of mud pressure signal, processing, identification and Presentation Function, in the present embodiment, ground system comprises the standpipe pressure sensor 6 of the pulse signal sending for received pulse generator 2, the decoding case 7 being connected with standpipe pressure sensor 6, and the Industrial Personal Computer (IPC) 8 being connected with this decoding case 7.Wherein, Industrial Personal Computer (IPC) has coded pulse detection, decoding, data processing, calculating and data demonstration and output.In order better to realize the present embodiment,, ground system also comprises the wireless driller's display 9 with Industrial Personal Computer (IPC) 8 wireless connections.By every bore parameters of wireless driller's display display measurement directly perceived: hole angle, drift azimuth, Magnetic tools face angle or flash tool face azimuth etc.
The course of work of the present utility model: the hole deviation of directed inserting tube detecting instrument present position, orientation, temperature, the parameters such as rotation status, after coding, send instruction to pulser generator, pulser generator causes the pressure of drilling-fluid circulation system to change according to encoding law by switch valve block, the standpipe pressure sensor of ground system detects these pressure to be changed, by the filtering of decoding case, decode, by Industrial Personal Computer (IPC), in instrument shelter, demonstrate the data that Instrumentation Engineering teacher need to monitor, Industrial Personal Computer (IPC) is sent to the wireless driller's display on rig floor by parameters such as router and day bundle of lines direction of deflection simultaneously, driller and directional well engineer determine how to adjust drilling parameter after seeing the parameter sending, drill string is crept into along the track of design.
According to above-described embodiment, just can realize well the utility model.What deserves to be explained is; under prerequisite based on above-mentioned design principle; for solving same technical problem; even if some that make on architecture basics disclosed in the utility model are without substantial change or polishing; the essence of the technical scheme adopting is still the same with the utility model, therefore it also should be in protection domain of the present utility model.
Claims (5)
1. DHM-MWD assembly, comprise downhole instrument and ground system, wherein, downhole instrument comprises non-magnetcisuspension extension drill collar pipe nipple (1), be installed on non-magnetcisuspension and hang the impulse generator (2) in drill collar pipe nipple (1), measure bore parameters also for the every bore parameters measuring is processed coding, the directed inserting tube (3) of clamp-pulse generator terrestrial system transmitted signal, electromagnetic wave resistivity logging pipe nipple, and be impulse generator, the power module of directed inserting tube (3) and the power supply of electromagnetic wave resistivity logging pipe nipple, it is characterized in that: downhole instrument also comprises that front end is connected with directed inserting tube (3), the gamma inserting tube (4) that rear end is connected with electromagnetic wave resistivity logging pipe nipple by punching centralizer (5), this gamma inserting tube (4) comprises the aviation plug connecting line (41) being connected with directed inserting tube (3), practice with this aviation plug the main control board (42) that level line (41) is connected, and the gamma detection module that controlled by main control board (42), scintillation counter and photomultiplier.
2. DHM-MWD assembly according to claim 1, it is characterized in that, described gamma inserting tube (4) also comprises resistance to compression cylinder (43), and described aviation plug connecting line (41), main control board (42) gamma detection module, scintillation counter and photomultiplier are all arranged in resistance to compression cylinder (43).
3. DHM-MWD assembly according to claim 2, is characterized in that, in the end, one end of the close directed inserting tube (3) of resistance to compression cylinder (43), is also provided with dust cap (44).
4. according to the DHM-MWD assembly described in claims 1 to 3 any one, it is characterized in that, described ground system comprises the standpipe pressure sensor (6) of the pulse signal sending for received pulse generator (2), the decoding case (7) being connected with standpipe pressure sensor (6), and the Industrial Personal Computer (IPC) (8) being connected with this decoding case (7).
5. DHM-MWD assembly according to claim 4, is characterized in that, described ground system also comprises the wireless driller's display (9) with Industrial Personal Computer (IPC) (8) wireless connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753255.6U CN203729985U (en) | 2013-11-26 | 2013-11-26 | Underground measurement while drilling assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753255.6U CN203729985U (en) | 2013-11-26 | 2013-11-26 | Underground measurement while drilling assembly |
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| CN203729985U true CN203729985U (en) | 2014-07-23 |
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| CN201320753255.6U Expired - Lifetime CN203729985U (en) | 2013-11-26 | 2013-11-26 | Underground measurement while drilling assembly |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198919A (en) * | 2014-09-15 | 2014-12-10 | 上海交通大学 | Kingview and PLC (programmable logic controller) based performance monitoring system for measurement while drilling instrument downhole circuit board |
| CN104680766A (en) * | 2014-09-15 | 2015-06-03 | 北京精密机电控制设备研究所 | Underground information acquisition system and underground information acquisition method thereof |
| CN105134201A (en) * | 2015-09-25 | 2015-12-09 | 王佟 | Gamma ray spectrometry log tool |
| CN105401932A (en) * | 2014-09-15 | 2016-03-16 | 北京环鼎科技有限责任公司 | Ground system for measurement while drilling |
| CN105785268A (en) * | 2016-04-07 | 2016-07-20 | 中国海洋石油总公司 | Calibration method for slurry pulse generator of shearing valve |
| CN106357500A (en) * | 2016-09-23 | 2017-01-25 | 上海神开石油设备有限公司 | Single-bus communication equipment of while-drilling system and single-bus communication method of single-bus communication equipment |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
| CN109538187A (en) * | 2018-12-05 | 2019-03-29 | 中石化石油工程技术服务有限公司 | A kind of underground resistivity gamma integrated measurement system and method |
| CN109931049A (en) * | 2019-04-28 | 2019-06-25 | 中国石油集团渤海钻探工程有限公司 | The rotary test device and its test method of measurement while drilling exploring tube |
| CN110513104A (en) * | 2018-05-21 | 2019-11-29 | 中国石油化工股份有限公司 | One kind is with brill orientation combination metering device |
| CN111734401A (en) * | 2019-03-22 | 2020-10-02 | 中国石油化工股份有限公司 | High-temperature-resistant measurement-while-drilling device and manufacturing method thereof |
| CN112112636A (en) * | 2019-06-21 | 2020-12-22 | 上海海洋地质勘察设计有限公司 | Logging-while-drilling device |
| CN112112633A (en) * | 2020-09-30 | 2020-12-22 | 中国石油天然气集团有限公司 | Drilling stratum leak source measuring instrument and judging method |
| CN112196520A (en) * | 2020-10-31 | 2021-01-08 | 中国石油集团渤海钻探工程有限公司 | Underground radar detection anti-collision short section, detection anti-collision system and detection anti-collision method |
| CN112612063A (en) * | 2020-12-16 | 2021-04-06 | 成都多贝石油工程技术有限公司 | Split type resistivity measurement system |
| CN113503155A (en) * | 2021-07-21 | 2021-10-15 | 中国科学院地质与地球物理研究所 | Multifunctional measurement system and measurement method for engineering parameters while drilling |
-
2013
- 2013-11-26 CN CN201320753255.6U patent/CN203729985U/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680766B (en) * | 2014-09-15 | 2019-06-18 | 北京精密机电控制设备研究所 | A kind of down-hole information acquisition system and its information collecting method |
| CN104680766A (en) * | 2014-09-15 | 2015-06-03 | 北京精密机电控制设备研究所 | Underground information acquisition system and underground information acquisition method thereof |
| CN105401932A (en) * | 2014-09-15 | 2016-03-16 | 北京环鼎科技有限责任公司 | Ground system for measurement while drilling |
| CN104198919A (en) * | 2014-09-15 | 2014-12-10 | 上海交通大学 | Kingview and PLC (programmable logic controller) based performance monitoring system for measurement while drilling instrument downhole circuit board |
| CN104198919B (en) * | 2014-09-15 | 2017-08-25 | 上海交通大学 | Steering tool electric circuit in well plate performance monitoring system based on KingView and PLC |
| CN105401932B (en) * | 2014-09-15 | 2018-05-29 | 北京环鼎科技有限责任公司 | A kind of measurement while drilling ground system |
| CN105134201A (en) * | 2015-09-25 | 2015-12-09 | 王佟 | Gamma ray spectrometry log tool |
| CN105785268A (en) * | 2016-04-07 | 2016-07-20 | 中国海洋石油总公司 | Calibration method for slurry pulse generator of shearing valve |
| CN106357500A (en) * | 2016-09-23 | 2017-01-25 | 上海神开石油设备有限公司 | Single-bus communication equipment of while-drilling system and single-bus communication method of single-bus communication equipment |
| CN108756864B (en) * | 2018-04-27 | 2021-08-27 | 中国石油天然气集团有限公司 | Azimuthal electromagnetic wave resistivity imaging logging-while-drilling instrument |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
| CN110513104A (en) * | 2018-05-21 | 2019-11-29 | 中国石油化工股份有限公司 | One kind is with brill orientation combination metering device |
| CN109538187A (en) * | 2018-12-05 | 2019-03-29 | 中石化石油工程技术服务有限公司 | A kind of underground resistivity gamma integrated measurement system and method |
| CN111734401A (en) * | 2019-03-22 | 2020-10-02 | 中国石油化工股份有限公司 | High-temperature-resistant measurement-while-drilling device and manufacturing method thereof |
| CN111734401B (en) * | 2019-03-22 | 2022-07-22 | 中国石油化工股份有限公司 | High-temperature-resistant measurement-while-drilling device and manufacturing method thereof |
| CN109931049A (en) * | 2019-04-28 | 2019-06-25 | 中国石油集团渤海钻探工程有限公司 | The rotary test device and its test method of measurement while drilling exploring tube |
| CN109931049B (en) * | 2019-04-28 | 2022-04-19 | 中国石油集团渤海钻探工程有限公司 | Rotation testing device and method for measurement while drilling probe |
| CN112112636A (en) * | 2019-06-21 | 2020-12-22 | 上海海洋地质勘察设计有限公司 | Logging-while-drilling device |
| CN112112633A (en) * | 2020-09-30 | 2020-12-22 | 中国石油天然气集团有限公司 | Drilling stratum leak source measuring instrument and judging method |
| CN112196520A (en) * | 2020-10-31 | 2021-01-08 | 中国石油集团渤海钻探工程有限公司 | Underground radar detection anti-collision short section, detection anti-collision system and detection anti-collision method |
| CN112612063A (en) * | 2020-12-16 | 2021-04-06 | 成都多贝石油工程技术有限公司 | Split type resistivity measurement system |
| CN113503155A (en) * | 2021-07-21 | 2021-10-15 | 中国科学院地质与地球物理研究所 | Multifunctional measurement system and measurement method for engineering parameters while drilling |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |