CN108913110B - 一种低渗油藏岩层表面改性减阻方法 - Google Patents
一种低渗油藏岩层表面改性减阻方法 Download PDFInfo
- Publication number
- CN108913110B CN108913110B CN201810653937.7A CN201810653937A CN108913110B CN 108913110 B CN108913110 B CN 108913110B CN 201810653937 A CN201810653937 A CN 201810653937A CN 108913110 B CN108913110 B CN 108913110B
- Authority
- CN
- China
- Prior art keywords
- low
- permeability reservoir
- permeability
- rock stratum
- modifying
- 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
- 239000011435 rock Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000004048 modification Effects 0.000 title claims abstract description 29
- 238000012986 modification Methods 0.000 title claims abstract description 29
- 230000009467 reduction Effects 0.000 title claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 118
- 239000007924 injection Substances 0.000 claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000000243 solution Substances 0.000 claims abstract description 35
- 239000003513 alkali Substances 0.000 claims abstract description 33
- 239000002253 acid Substances 0.000 claims abstract description 32
- 239000004927 clay Substances 0.000 claims abstract description 29
- 230000008961 swelling Effects 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000004094 surface-active agent Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 230000000368 destabilizing effect Effects 0.000 claims abstract description 13
- 239000003960 organic solvent Substances 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims abstract description 9
- 230000005764 inhibitory process Effects 0.000 claims abstract description 9
- 238000011282 treatment Methods 0.000 claims abstract description 9
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims abstract description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 44
- 235000019270 ammonium chloride Nutrition 0.000 claims description 22
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 16
- 239000003112 inhibitor Substances 0.000 claims description 14
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 12
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- PAAZPARNPHGIKF-UHFFFAOYSA-N 1,2-dibromoethane Chemical compound BrCCBr PAAZPARNPHGIKF-UHFFFAOYSA-N 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 7
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 7
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 6
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 5
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 5
- 229920000136 polysorbate Polymers 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- UHGGERUQGSJHKR-VCDGYCQFSA-N (2r,3r,4r,5s)-hexane-1,2,3,4,5,6-hexol;octadecanoic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.CCCCCCCCCCCCCCCCCC(O)=O UHGGERUQGSJHKR-VCDGYCQFSA-N 0.000 claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- XFLNVMPCPRLYBE-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;tetrahydrate Chemical compound O.O.O.O.[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O XFLNVMPCPRLYBE-UHFFFAOYSA-J 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 241000779819 Syncarpia glomulifera Species 0.000 claims description 2
- 239000003502 gasoline Substances 0.000 claims description 2
- 239000001739 pinus spp. Substances 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical group O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 229940036248 turpentine Drugs 0.000 claims description 2
- 125000002636 imidazolinyl group Chemical group 0.000 claims 1
- 239000003921 oil Substances 0.000 description 27
- 239000000203 mixture Substances 0.000 description 22
- 230000002401 inhibitory effect Effects 0.000 description 17
- 238000010276 construction Methods 0.000 description 16
- 230000035699 permeability Effects 0.000 description 14
- 230000002829 reductive effect Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000020477 pH reduction Effects 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000004568 cement Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 239000002086 nanomaterial Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000003416 augmentation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 229960001484 edetic acid Drugs 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 229950011392 sorbitan stearate Drugs 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/28—Friction or drag reducing additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810653937.7A CN108913110B (zh) | 2018-06-22 | 2018-06-22 | 一种低渗油藏岩层表面改性减阻方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810653937.7A CN108913110B (zh) | 2018-06-22 | 2018-06-22 | 一种低渗油藏岩层表面改性减阻方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108913110A CN108913110A (zh) | 2018-11-30 |
CN108913110B true CN108913110B (zh) | 2020-11-10 |
Family
ID=64420880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810653937.7A Active CN108913110B (zh) | 2018-06-22 | 2018-06-22 | 一种低渗油藏岩层表面改性减阻方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108913110B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110656914B (zh) * | 2019-10-14 | 2021-09-14 | 四川瑞冬科技有限公司 | 一种低渗透油藏降压增注的方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009142846A2 (en) * | 2008-05-19 | 2009-11-26 | Baker Hughes Incorporated | Suspension of concentrated particulate additives containing oil for fracturing and other fluids |
WO2013070585A1 (en) * | 2011-11-11 | 2013-05-16 | Schlumberger Canada Limited | Hydrolyzable particle compositions, treatment fluids and methods |
CN104295275A (zh) * | 2013-07-17 | 2015-01-21 | 中国石油化工股份有限公司 | 一种中高渗砂岩油藏注水井深部解堵增注方法 |
CN105754569A (zh) * | 2014-12-16 | 2016-07-13 | 中国石油天然气股份有限公司 | 一种低渗透油藏注水井预处理剂及其制备方法 |
CN105907385A (zh) * | 2016-05-16 | 2016-08-31 | 中国石油化工股份有限公司 | 一种注水井酸化预处理剂及其制备方法 |
CN106085401A (zh) * | 2016-06-07 | 2016-11-09 | 郑州东申石化科技有限公司 | 一种低渗透油田注水井用降压增注剂及其制备方法与应用 |
CN107892910A (zh) * | 2017-11-10 | 2018-04-10 | 中国石油集团渤海钻探工程有限公司 | 低成本多功能酸液体系 |
CN108049855A (zh) * | 2018-01-20 | 2018-05-18 | 中国石油集团渤海钻探工程有限公司 | 一种适用于砂岩储层改造的多氢酸施工工艺 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143716A (en) * | 1976-08-30 | 1979-03-13 | Texaco Inc. | Tertiary oil recovery process utilizing a preflush |
US7789146B2 (en) * | 2007-07-25 | 2010-09-07 | Schlumberger Technology Corporation | System and method for low damage gravel packing |
-
2018
- 2018-06-22 CN CN201810653937.7A patent/CN108913110B/zh active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009142846A2 (en) * | 2008-05-19 | 2009-11-26 | Baker Hughes Incorporated | Suspension of concentrated particulate additives containing oil for fracturing and other fluids |
WO2013070585A1 (en) * | 2011-11-11 | 2013-05-16 | Schlumberger Canada Limited | Hydrolyzable particle compositions, treatment fluids and methods |
CN104295275A (zh) * | 2013-07-17 | 2015-01-21 | 中国石油化工股份有限公司 | 一种中高渗砂岩油藏注水井深部解堵增注方法 |
CN105754569A (zh) * | 2014-12-16 | 2016-07-13 | 中国石油天然气股份有限公司 | 一种低渗透油藏注水井预处理剂及其制备方法 |
CN105907385A (zh) * | 2016-05-16 | 2016-08-31 | 中国石油化工股份有限公司 | 一种注水井酸化预处理剂及其制备方法 |
CN106085401A (zh) * | 2016-06-07 | 2016-11-09 | 郑州东申石化科技有限公司 | 一种低渗透油田注水井用降压增注剂及其制备方法与应用 |
CN107892910A (zh) * | 2017-11-10 | 2018-04-10 | 中国石油集团渤海钻探工程有限公司 | 低成本多功能酸液体系 |
CN108049855A (zh) * | 2018-01-20 | 2018-05-18 | 中国石油集团渤海钻探工程有限公司 | 一种适用于砂岩储层改造的多氢酸施工工艺 |
Non-Patent Citations (2)
Title |
---|
低渗透油藏降压增注技术研究;李俊;《中国优秀硕士学位论文全文数据库工程科技I辑》;20120430;3-83 * |
石油储层微孔道纳米减阻机理研究;顾春元;《中国博士学位论文数据库(基础科学辑)》;20090131;全文 * |
Also Published As
Publication number | Publication date |
---|---|
CN108913110A (zh) | 2018-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104449631B (zh) | 强气润湿性纳米二氧化硅解水锁剂、其制备方法及岩石表面润湿反转的方法 | |
CN107575183B (zh) | 一种用于注水井的调-解联作工艺方法 | |
CN105670584B (zh) | 一种适合于低渗低压气井修井的暂堵型压井流体及制备方法 | |
CN102816558A (zh) | 一种深部调剖堵水用堵剂及其制备方法 | |
CN104232041B (zh) | 一种油水井用低滤失强溶蚀酸化解堵液及其制备方法 | |
RU2670808C1 (ru) | Способ увеличения нефтеотдачи пластов (варианты) | |
CN107165612B (zh) | 一种用于油气井的解堵方法 | |
CN105985762B (zh) | 一种压裂液及其制备方法 | |
CN108410439B (zh) | 一种凝胶泡沫与原位微乳液组合应用油井增产的方法 | |
CN106753299B (zh) | 一种稀油井选择性堵水剂及其制备方法与应用 | |
CN112852398B (zh) | 一种海上稠油蒸汽驱用高温泡沫调驱剂及其应用 | |
CN108913110B (zh) | 一种低渗油藏岩层表面改性减阻方法 | |
CN104481475B (zh) | 油井二氧化碳碳酸水吞吐增产方法 | |
CN103678920B (zh) | 适用于超低渗透油藏颗粒堵剂用量的计算方法 | |
CN104927830A (zh) | 防水锁压裂液及其制备方法 | |
CN114752366A (zh) | 生物基类表面活性剂解堵增注剂及应用体系 | |
CN110591685A (zh) | 一种原位自生微泡沫的转向酸化液及酸化转向方法和应用 | |
CN106995689B (zh) | 一种二氧化碳驱油用复合型防气窜剂 | |
Qing et al. | Study and application of gelled foam for in-depth water shutoff in a fractured oil reservoir | |
JP2007518002A (ja) | 地下累層の強化方法 | |
RU2425209C2 (ru) | Способ обработки карбонатных и карбонатсодержащих пластов (варианты) | |
CN112852395B (zh) | 一种增注液及其制备方法和应用 | |
CN114634802B (zh) | 一种耐温抗盐超疏水覆膜堵剂及制备方法 | |
CN105131924B (zh) | 自发泡洗井液用增粘剂及洗井液配置剂及洗井液 | |
CN104449622B (zh) | 抗高温高压有机复合型油层保护液及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20231030 Address after: 257300 Xiaoli village, Dawang Town, Guangrao County, Dongying City, Shandong Province Patentee after: SHANDONG DEKUN INDUSTRY AND TRADE CO.,LTD. Address before: Room 1104, Building D, Ligang Galaxy Plaza, Intersection of Luzhou Avenue and Ziyun Road, Baohe District, Hefei City, Anhui Province, 230000 Patentee before: Hefei Jichu Information Technology Co.,Ltd. Effective date of registration: 20231030 Address after: Room 1104, Building D, Ligang Galaxy Plaza, Intersection of Luzhou Avenue and Ziyun Road, Baohe District, Hefei City, Anhui Province, 230000 Patentee after: Hefei Jichu Information Technology Co.,Ltd. Address before: 535011 12 Binhai Road, Binhai New Town, Qinzhou City, the Guangxi Zhuang Autonomous Region Patentee before: Beibu Gulf University |