JP7290329B2 - 水井戸のメンテナンス法-時間をベースにしたアプローチ - Google Patents
水井戸のメンテナンス法-時間をベースにしたアプローチ Download PDFInfo
- Publication number
- JP7290329B2 JP7290329B2 JP2019547253A JP2019547253A JP7290329B2 JP 7290329 B2 JP7290329 B2 JP 7290329B2 JP 2019547253 A JP2019547253 A JP 2019547253A JP 2019547253 A JP2019547253 A JP 2019547253A JP 7290329 B2 JP7290329 B2 JP 7290329B2
- Authority
- JP
- Japan
- Prior art keywords
- well
- carbon dioxide
- energy
- injection
- water
- Prior art date
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 39
- 238000000034 method Methods 0.000 title claims description 22
- 238000012423 maintenance Methods 0.000 title claims description 9
- 238000013459 approach Methods 0.000 title description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 158
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 79
- 239000001569 carbon dioxide Substances 0.000 claims description 51
- 239000007924 injection Substances 0.000 claims description 49
- 238000002347 injection Methods 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 34
- 239000000126 substance Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 10
- 238000005755 formation reaction Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000035515 penetration Effects 0.000 claims 1
- 238000004904 shortening Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 33
- 238000004140 cleaning Methods 0.000 description 19
- 239000012071 phase Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- OEBRKCOSUFCWJD-UHFFFAOYSA-N dichlorvos Chemical compound COP(=O)(OC)OC=C(Cl)Cl OEBRKCOSUFCWJD-UHFFFAOYSA-N 0.000 description 12
- 239000007787 solid Substances 0.000 description 7
- 239000007791 liquid phase Substances 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 241001432959 Chernes Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229960000074 biopharmaceutical Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
Images
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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
- E03B3/15—Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers
-
- 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
- E21B37/00—Methods or apparatus for cleaning 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Cleaning In General (AREA)
Description
1: エネルギー注入ポート
2: フランジを用いた井戸の密閉-パッカーも使用できる
3: 井戸深部まで二酸化炭素および/あるいは化学薬品を送り込む注入管
4: エネルギー迂回ポートあるいはエネルギー急速放出バルブ
5: 井戸内の圧力を測定する圧力ゲージ
6: グラウトによる密閉
7: 容積置換パイプと吸引流制御パイプ
8: 静水位
9: 井戸ケーシングとスクリーンあるいは裸孔井戸壁面と容積置換パイプあるいは吸引流制御パイプとの間の縮小された環状空間
10: 井戸スクリーンあるいは岩盤井戸(裸孔井戸)の壁面
11: フィルターパックあるいは天然のパック
12: 二酸化炭素の注入と方向制御バルブによって作られた渦
13: 固結したあるいは未固結の帯水層
14: 井戸ケーシング
15: 密閉した井戸に通じるポート
16: 井戸用水中ポンプあるいはラインシャフトタービンポンプ
17: 井戸に水中ポンプを設置した時の揚水用モーター
18: 揚水管
Claims (7)
- 井戸内に揚水装置を設置した状態で二酸化炭素を用いる井戸メンテナンス方法であって、井戸及び周辺地層の水生産区間の全ての領域を含む井戸構造全体にわたって二酸化炭素の機械エネルギー、化学エネルギーおよび熱エネルギーの組み合わせからなるエネルギーを供給することと、二酸化炭素注入中の二酸化炭素の相変化を制御して坑井及び周辺地層内の攪拌のサージング効果を引き起こし、前記エネルギーを井戸の全ての領域に到達させることによって、前記井戸構造全体に前記エネルギーを分配することと、容積置換パイプ(VDP)と井戸スクリーン又は坑井の間の環状空間において、二酸化炭素が所望角度の渦となるように注入ノズルの向きを変えることと、を含み、
前記渦が前記エネルギーを井戸及び周辺帯水層に送り込む、井戸メンテナンス方法。 - 前記エネルギーが利用され、二酸化炭素の相変化を利用して、前記井戸構造全体に環境的に安全な化学物質を送り込むことを含む、請求項1の井戸メンテナンス方法。
- 二酸化炭素注入前に井戸内に容積置換パイプを設置することを更に含み、前記容積置換パイプが井戸スクリーン又は坑井よりも小さな直径を有し、井戸内の水を排出でき、前記エネルギーを前記井戸スクリーン又は岩盤井戸の亀裂に向かわせる、請求項1の井戸メンテナンス方法。
- 周辺地層への可溶化二酸化炭素の浸透を少なくし、周囲条件又は処理前の条件に戻すためのポンプ仕上げ工の時間を短縮するように、前記エネルギーの量を選択することを含む、請求項1の井戸メンテナンス方法。
- 帯水層の空隙率に加えて、帯水層の緩衝能力を評価することによって二酸化炭素の容積を選択することを含み、前記帯水層中の炭酸塩の量と水の総アルカリ度の評価から前記緩衝能力を決めることができる、請求項1の井戸メンテナンス方法。
- 密閉された井戸への二酸化炭素の液体と気体の注入サイクルを切り替えながら二酸化炭素を注入することにより井戸をサージすることを含み、注入サイクルの長が、水生産区間の長、井戸処理ゾーンの水量、及び二酸化炭素の流量に基づいて計算される、請求項1の井戸メンテナンス方法。
- 気体二酸化炭素注入サイクルを短くし、液体二酸化炭素注入サイクルの頻度を増やして水柱のサージングを引き起こすことによって、液体二酸化炭素と気体二酸化炭素との間のサイクル頻度を高めてサージング効果を最大化することを含む、請求項1の井戸メンテナンス方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022139081A JP2022172264A (ja) | 2016-11-16 | 2022-09-01 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
JP2023052756A JP2023082093A (ja) | 2016-11-16 | 2023-03-29 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662422787P | 2016-11-16 | 2016-11-16 | |
US62/422,787 | 2016-11-16 | ||
PCT/US2017/062110 WO2018094119A1 (en) | 2016-11-16 | 2017-11-16 | Method of water well maintenance-time based approach |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022139081A Division JP2022172264A (ja) | 2016-11-16 | 2022-09-01 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
JP2023052756A Division JP2023082093A (ja) | 2016-11-16 | 2023-03-29 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2019535943A JP2019535943A (ja) | 2019-12-12 |
JP2019535943A5 JP2019535943A5 (ja) | 2020-06-25 |
JP7290329B2 true JP7290329B2 (ja) | 2023-06-13 |
Family
ID=62145758
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019547253A Active JP7290329B2 (ja) | 2016-11-16 | 2017-11-16 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
JP2022139081A Withdrawn JP2022172264A (ja) | 2016-11-16 | 2022-09-01 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
JP2023052756A Pending JP2023082093A (ja) | 2016-11-16 | 2023-03-29 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022139081A Withdrawn JP2022172264A (ja) | 2016-11-16 | 2022-09-01 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
JP2023052756A Pending JP2023082093A (ja) | 2016-11-16 | 2023-03-29 | 水井戸のメンテナンス法-時間をベースにしたアプローチ |
Country Status (6)
Country | Link |
---|---|
US (2) | US11739614B2 (ja) |
EP (1) | EP3541541A4 (ja) |
JP (3) | JP7290329B2 (ja) |
BR (1) | BR112019009950A2 (ja) |
CL (1) | CL2019001320A1 (ja) |
WO (1) | WO2018094119A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7471981B2 (ja) | 2020-09-30 | 2024-04-22 | 清水建設株式会社 | 地下水のリチャージ方法及び地下水リチャージ装置 |
CN115467644B (zh) * | 2022-11-02 | 2023-02-10 | 华运隆腾机械制造有限公司 | 一种耐腐型二氧化碳采气井口装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080128136A1 (en) | 2000-06-20 | 2008-06-05 | Subsurface Technologies, Inc. | Well maintenance equipment and procedure |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4392529A (en) * | 1981-11-03 | 1983-07-12 | Burwell Maurel R | Method of cleaning a well and apparatus thereof |
US5069286A (en) * | 1990-04-30 | 1991-12-03 | The Mogul Corporation | Method for prevention of well fouling |
US5190108A (en) * | 1991-08-19 | 1993-03-02 | Layne-Western Company, Inc. | Method and apparatus for inhibiting biological fouling of water wells |
US6142232A (en) * | 1998-07-15 | 2000-11-07 | Layne Christensen Company | Method and apparatus for cleaning wells |
DE10023454C2 (de) * | 2000-05-12 | 2002-09-19 | Pumpenboese Gmbh & Co Kg | Verfahren zur Vermeidung von Inkrustationen bei Brunnen zur Wasserförderung sowie Vorrichtung zur Durchführung des Verfahrens |
BR0116053A (pt) * | 2000-12-08 | 2005-08-16 | Subsurface Technologies Inc | Método aperfeiçoado para estimulação de fluxo lìquido em um poço |
US20060243668A1 (en) * | 2003-03-21 | 2006-11-02 | Miller Gregory P | Apparatus, method and system of treatment of arsenic and other impurities in ground water |
US6988552B2 (en) * | 2003-06-19 | 2006-01-24 | Conocophillips Company | Liquid carbon dioxide cleaning of wellbores and near-wellbore areas |
GB0713180D0 (en) * | 2007-07-06 | 2007-08-15 | Cleansorb Ltd | Method for treatment of underground reservoirs |
US20130014950A1 (en) * | 2011-07-14 | 2013-01-17 | Dickinson Theodore Elliot | Methods of Well Cleanout, Stimulation and Remediation and Thermal Convertor Assembly for Accomplishing Same |
US9869167B2 (en) * | 2012-11-12 | 2018-01-16 | Terracoh Inc. | Carbon dioxide-based geothermal energy generation systems and methods related thereto |
US10648306B2 (en) * | 2018-07-06 | 2020-05-12 | Arizona Co2 Solutions Llc | Interval delivery of liquid carbon dioxide |
-
2017
- 2017-11-16 BR BR112019009950A patent/BR112019009950A2/pt unknown
- 2017-11-16 US US16/461,357 patent/US11739614B2/en active Active
- 2017-11-16 JP JP2019547253A patent/JP7290329B2/ja active Active
- 2017-11-16 EP EP17870735.2A patent/EP3541541A4/en active Pending
- 2017-11-16 WO PCT/US2017/062110 patent/WO2018094119A1/en unknown
-
2019
- 2019-05-15 CL CL2019001320A patent/CL2019001320A1/es unknown
-
2022
- 2022-09-01 JP JP2022139081A patent/JP2022172264A/ja not_active Withdrawn
-
2023
- 2023-03-29 JP JP2023052756A patent/JP2023082093A/ja active Pending
- 2023-07-14 US US18/222,247 patent/US20230358117A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080128136A1 (en) | 2000-06-20 | 2008-06-05 | Subsurface Technologies, Inc. | Well maintenance equipment and procedure |
Also Published As
Publication number | Publication date |
---|---|
BR112019009950A2 (pt) | 2019-08-20 |
EP3541541A4 (en) | 2020-06-03 |
US20230358117A1 (en) | 2023-11-09 |
US11739614B2 (en) | 2023-08-29 |
JP2022172264A (ja) | 2022-11-15 |
US20200056456A1 (en) | 2020-02-20 |
EP3541541A1 (en) | 2019-09-25 |
WO2018094119A1 (en) | 2018-05-24 |
CL2019001320A1 (es) | 2019-10-25 |
JP2019535943A (ja) | 2019-12-12 |
JP2023082093A (ja) | 2023-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2023082093A (ja) | 水井戸のメンテナンス法-時間をベースにしたアプローチ | |
JP5163996B2 (ja) | 液化炭酸ガスの地中送り込み方法及びその地中送り込み装置 | |
CN105239963B (zh) | 一种节能环保防蜡防垢降粘器 | |
US8434554B2 (en) | Groundwater well | |
EA029636B1 (ru) | Способ комбинированных очистки и закупоривания скважины и промывочное устройство для промывки скважины | |
CN101705815A (zh) | 超临界二氧化碳钻井液模拟实验装置 | |
CN103161478A (zh) | 一种脉冲式注浆方法 | |
CN1356451A (zh) | 油气井反循环钻井方法及设备 | |
RU2315171C1 (ru) | Способ изоляции зон водопритока в скважине | |
JP7304654B2 (ja) | 井戸修復方法 | |
CN203891761U (zh) | 用于煤层气的欠平衡钻井系统 | |
RU2535765C1 (ru) | Способ обработки призабойной зоны скважины | |
JP2019535943A5 (ja) | ||
RU2483200C1 (ru) | Способ гидродинамического воздействия на призабойную зону пласта | |
CN205100939U (zh) | 一种节能环保防蜡防垢超强降粘器 | |
RU2078212C1 (ru) | Способ скважинной гидродобычи соли и устройство для его осуществления | |
RU2238400C1 (ru) | Система и способ восстановления продуктивности скважины и добычи нефти насосным способом, в том числе после глушения | |
RU217386U1 (ru) | Струйный насос | |
RU2535546C1 (ru) | Устройство для предотвращения солеотложений в скважине | |
RU175689U1 (ru) | Устройство для приготовления буровых растворов | |
RU2464416C1 (ru) | Способ вызова притока из пласта | |
CN103993827B (zh) | 用于煤层气的欠平衡钻井方法及系统 | |
RU52925U1 (ru) | Гидродобычный снаряд | |
Chen | Petroleum Production Engineering | |
RU2502861C2 (ru) | Способ разработки залежи нефти, расположенной над газовой залежью и отделенной от нее непроницаемым пропластком |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200513 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200513 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210726 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20211020 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20211213 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20211223 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220126 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220602 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220901 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20220830 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20221201 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230329 |
|
C60 | Trial request (containing other claim documents, opposition documents) |
Free format text: JAPANESE INTERMEDIATE CODE: C60 Effective date: 20230329 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20230405 |
|
C21 | Notice of transfer of a case for reconsideration by examiners before appeal proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C21 Effective date: 20230406 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230501 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230525 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7290329 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |