CN103670347B - The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir - Google Patents

The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir Download PDF

Info

Publication number
CN103670347B
CN103670347B CN201310479743.7A CN201310479743A CN103670347B CN 103670347 B CN103670347 B CN 103670347B CN 201310479743 A CN201310479743 A CN 201310479743A CN 103670347 B CN103670347 B CN 103670347B
Authority
CN
China
Prior art keywords
methane
bacterium
oil reservoir
methanogen
acetate
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
Application number
CN201310479743.7A
Other languages
Chinese (zh)
Other versions
CN103670347A (en
Inventor
牟伯中
刘金峰
杨世忠
王立影
孙晓博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Huali Biotechnology Co.,Ltd.
Original Assignee
East China University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by East China University of Science and Technology filed Critical East China University of Science and Technology
Priority to CN201310479743.7A priority Critical patent/CN103670347B/en
Publication of CN103670347A publication Critical patent/CN103670347A/en
Priority to PCT/CN2014/087046 priority patent/WO2015055072A1/en
Application granted granted Critical
Publication of CN103670347B publication Critical patent/CN103670347B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The present invention relates to a kind of raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir, the method comprises the steps: that (1) is analyzed and determines a kind of bacterium at least existing in syntrophism Zymomonas mobilis or thermobacillus in target reservoir fluid, there is at least one in following bacterium: methagen simultaneously, thermophilic methagen, methane rope bacterium, methanospirillum, methane capsule bacterium；(2) injecting acetic acid or acetate in oil reservoir, making acetic acid or acetate concentration in oil reservoir water is 5.0～10.0mM；(3) results methane.Compared with prior art, the present invention has can be greatly improved carbon dioxide reduction type methane phase speed, has economy, the advantage such as simple and feasible.

Description

The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir
Technical field
The present invention relates to oil pool microorganisms exploitation and utilize technical field, particularly relating to oil pool microorganisms and convert CO2Methanogenic technical method.
Background technology
Oil reservoir is in the hundreds of rice in underground to thousands of rice, crude oil and has the basic of same pressure system in single trap Assemble.The microorganism bred in this environment has that species are many, metabolic type is many, interrelated, structure is the most steady The feature such as fixed.For specific oil reservoir, through adaptation of developing for a long time, microorganism therein defines relatively stable Group.At present, water-drive pool also exists Methane producing bacteria and methane biosynthesis has become the generally accepted fact. Have thermophilic of the methanogen Methanobacterium thermaggregans being separated to from undeveloped reserves and The characteristics such as salt tolerant have good concordance with the reservoir media separated, and illustrate that methanogen is typical in oil reservoir Original inhabitants bacterium.
Research confirms, CO2Geological storage is to reduce CO2The effective way of discharge.CO2Bury environment generation Affect little, cost is relatively low, has concordance with relevant policies international, domestic, regulation.Research and it was verified that Oil-gas reservoir, the oil-gas reservoir being particularly on the verge of exhaustion is CO2The best place of Geological storage.
Research confirms, has CO in oil reservoir2It is converted into the potentiality of methane.Oil reservoir is grown diversified micro- Biology also defines metastable microbiologic population.Oil field stratum water typically may separate out the micro-of different physiological group Biology is such as the most aerobic chemoheterotrophic bacteria (such as hydrocarbon oxidation bacteria) and the zymocyte of anaerobism, sulfate reducting bacteria, nitrate are also Former bacterium and methanogen etc..This use for laboratory clone library method analyzes high temperature on Chinese Continental (75 DEG C) water-drive pool and produces Go out the structure of community of microorganism in water sample, find high-temperature oil reservoir exists abundant microorganism, predominantly Firmicutes (Firmicutes), the antibacterial of thermobacillus door (Thermotogae), hydrogen auxotype (Methanomicrobiales, Methanococcale, Methanobacteriales) and acetic acid auxotype methanogen (Methanosarcinales) Deng ancient bacterium.The methanogen found in oil reservoir mainly includes methagen and sarcina methanica, allusion quotation in methagen Type bacterium is Bu Shi methagen (M bryantii) and formic acid methagen (Mformicicum), and both of which can utilize CO2/ H2Methane phase.
In oil reservoir, microbial activity is low, CO under naturalness2The speed being biologically converted into methane is relatively low.Due to oil Hiding Middle nutrition material deficient, micro organism quantity is the most relatively low.Knapp etc. are to Payne county, Oklahoma state Microorganism in the unit reservoir of SEVVSU oil field is studied, and finds that wherein methanogen quantity is only 2～46 Cells/ml.Equally, in unit stratum, Romashkino oil field 302, zymocyte concentration is about 102～104 Cells/ml, Methane producing bacteria concentration is about 1～102Cells/ml.Romashkino oil field methane is mainly by heavy carbonic Salt produces, and speed is 0.0126～0.2786ml CH4·L-1·day-1.Siberia Mamontovskoe high temperature oil HCO is passed through at water injection well well bottom zone, methane in field3 -Synthesizing with acetate, speed is 0.0327～5.3130m1 CH4·L-1·day-1；In the region being connected with producing well, methane is mainly synthesized by acetate, speed be 0.0041～ 0.1291ml CH4·L-1·day-1.Therefore, no matter subsurface deposit condition or laboratory condition, micro-in oil reservoir Biology is respectively provided with CO2Be biologically converted into the ability of methane, but due under natural conditions oil pool microorganisms concentration low, Metabolic activity is low.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide one significantly to carry High carbon dioxide reduced form methane phase speed, has methanogen in economy, simple and feasible activation oil reservoir and converts two The raw methanogenic method of carbonoxide.
The purpose of the present invention can be achieved through the following technical solutions: in a kind of activation oil reservoir, methanogen converts two The raw methanogenic method of carbonoxide, it is characterised in that the method comprises the steps:
(1) analyze and determine target reservoir fluid at least exists syntrophism Zymomonas mobilis (Syntrophomonadaceae) Or a kind of bacterium in thermobacillus (Thermotogaceae), there is at least one in following bacterium: methane bar simultaneously Bacterium (Methanobacterium), thermophilic methagen (Methanothermobacter), methane rope bacterium (Methanolinea), methanospirillum (Methanospirillum), methane capsule bacterium (Methanoculleus)；
(2) injecting acetic acid or acetate in oil reservoir, making acetic acid or acetate concentration in oil reservoir water is 5.0～10.0 mM；
(3) results methane.
Acetate concentration described in step (2) is 6.8mM, described acetate include but not limited to acetate sodium, Potassium acetate.
Results methane described in step (3) is by injecting well results or gathering in the crops from producing well.
Step (1) is analyzed and is determined syntrophism Zymomonas mobilis (Syntrophomonadaceae) or heat in target reservoir fluid Robe bacterium (Thermotogaceae), methagen (Methanobacterium), thermophilic methagen (Methanothermobacter), methane rope bacterium (Methanolinea), methanospirillum (Methanospirillum), Methane capsule bacterium (Methanoculleus), uses document [International Biodeterioration & Biodegradation] the 65th phase 444-450 page in 2011 report 16S rDNA method be analyzed identify.
Compared with prior art, the indigenous microorganism during the present invention utilizes oil reservoir is by CO2It is reduced into CH4It is to give birth to more The complex biological course of reaction that thing participates in, needs multiple-microorganism jointly to act on and just can complete, in downstream reaction process In, most probable reaction path is that acetic acid is produced H by acetic acid oxidation bacteria2, the methanogen recycling of hydrogen auxotype H2And CO2Produce methane, there is food chain structure.Research finds, the Steps of this reaction is the most altogether Hydrogen process is produced in raw bacterium (Syntrophus) oxidation.The present invention, by injecting short chain organic acid salt, stimulates syntrophism Zymomonas mobilis (Syntrophomonadaceae) or/and thermobacillus (Thermotogaceae) growth metabolism, and then under activating Trip carbon dioxide reduction type methanogen, which thereby enhances reduction CO2Methanogenic speed.The present invention can be big Big improve carbon dioxide reduction type methane phase speed, there is economy, the advantage such as simple and feasible.
Accompanying drawing explanation
Fig. 1 is the sodium acetate impact on methane phase upstream bacteria flora；
Fig. 2 is the impact that methanogen is formed by sodium acetate.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Analyze in Daqing oil field block production fluid containing syntrophism Zymomonas mobilis (Syntrophomonadaceae) and heat Robe bacterium (Thermotogaceae) and thermophilic methagen (Methanothermobacter), with this production fluid Preparing 2 cultivating systems (system composition is shown in Table 1～3), cultivate 180 days at 55 DEG C, system is all not detected by CH4, show that in system, methanogen activity is the lowest.Then one of them system keeps constant, another one system Add 0.41g (5mM) sodium acetate, cultivate 12 days, two systems all detect CH4, cultivate 120 CH in two systems after it4Content is respectively 18.3mmol/L (interpolation sodium acetate) and 2.7mmol/L and (is not added with Sodium acetate).2 individual system colony assay are shown in Fig. 1 and Fig. 2.As seen from Figure 1, syntrophism Zymomonas mobilis (Syntrophomonadaceae) abundance is brought up to 57% (interpolation second by 20% (being not added with sodium acetate system) Acid sodium system).From Figure 2 it can be seen that methanogen Methanothermobacter abundance (is not added with acetic acid by 52% Sodium system) bring up to 98% (adding sodium acetate system).CO is participated in after showing to add sodium acetate2Convert and produce CH4 Process or the most closely-related microorganism have been activated or abundance increases, and flora is to being conducive to reducing CO2Produce Methane direction evolution, methane production improves nearly 7 times simultaneously.
Embodiment 2
Analyze in North China Oilfield block production fluid containing 9.5% syntrophism Zymomonas mobilis (Syntrophomonadaceae) With and 18.3% methagen (Methanobacterium) and 10.8% methane rope bacterium (Methanolinea), Preparing 2 cultivating systems (system composition is shown in Table 1～3) with this production fluid, cultivate 100 days at 38 DEG C, two is individual System is all not detected by CH4, show that in system, methanogen activity is the lowest.Then keep an individual system constant, Another system adds 0.56g (6.8mM) sodium acetate, detects in two systems after continuing to cultivate 33 days CH4, CH in two systems after cultivating 75 days4Content is respectively 4.7mmol/L (being not added with sodium acetate) and 22.4 Mmol/L (interpolation sodium acetate).In system, syntrophism Zymomonas mobilis (Syntrophomonadaceae) abundance is by 20% (not Add sodium acetate system) bring up to 57% (adding sodium acetate system).Methagen (Methanobacterium) With methane rope bacterium (Methanolinea) respectively by being not added with 18.3% and 10.8% raising of sodium acetate system to adding Add the 33.7% and 12.2% of sodium acetate system.
Embodiment 3
Analyze the syntrophism Zymomonas mobilis containing 15.7% in Xinjiang Oilfield block production fluid (Syntrophomonadaceae) thermobacillus (Thermotogaceae) of and 9.6% and the thermophilic first of 23.2% Alkane bacillus (Methanobacterium), methane capsule bacterium (Methanoculleus) of 13.7%, join with this production fluid Making 2 cultivating systems (system composition is shown in Table 1～3), cultivate 64 days at 21 DEG C, two individual system are all not detected by CH4, show that in system, methanogen activity is the lowest.Then keep an individual system constant, add in another system Enter 0.98g (10mM) potassium acetate, continue to cultivate 23 days, two systems all detect CH4, cultivate CH in two systems after 143 days4Content is respectively 3.2mmol/L (being not added with potassium acetate system) and 37.2mmol/L (adding potassium acetate system).In system, syntrophism Zymomonas mobilis (Syntrophomonadaceae) abundance is by 15.7% (not Add potassium acetate system) bring up to 37.6% (adding potassium acetate system), thermobacillus (Thermotogaceae) 10.2% (adding potassium acetate system) is faded to) by 9.6% (being not added with potassium acetate system).Thermophilic methagen (Methanobacterium) faded to 45.0% by 23.2% (being not added with potassium acetate system) and (add potassium acetate body System), methane capsule bacterium (Methanoculleus) 13.7% (being not added with potassium acetate system) becomes 28.6% and (adds Potassium acetate system).
Table 1 cultivating system forms
Table 2 vitamin
Table 3 trace element

Claims (3)

1. the raw methanogenic method of methanogen chemical recycling of carbon dioxide in an activation oil reservoir, it is characterised in that should Method comprises the steps:
(1) analyze and determine target reservoir fluid at least exists syntrophism Zymomonas mobilis (Syntrophomonadaceae) Or a kind of bacterium in thermobacillus (Thermotogaceae), there is at least one in following bacterium: methane bar simultaneously Bacterium (Methanobacterium), thermophilic methagen (Methanothermobacter), methane rope bacterium (Methanolinea), methanospirillum (Methanospirillum), methane capsule bacterium (Methanoculleus)；
(2) injecting acetic acid or acetate in oil reservoir, making acetic acid or acetate concentration in oil reservoir water is 5.0～10.0 mM；
(3) results methane；Described results methane is by injecting well results or gathering in the crops from producing well.
The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir the most according to claim 1, It is characterized in that, the acetate concentration described in step (2) is 6.8mM, and described acetate includes but not limited to Acetate sodium, potassium acetate.
The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir the most according to claim 1, It is characterized in that, step (1) is analyzed and is determined syntrophism Zymomonas mobilis (Syntrophomonadaceae) in target reservoir fluid Or thermobacillus (Thermotogaceae), methagen (Methanobacterium), thermophilic methagen (Methanothermobacter), methane rope bacterium (Methanolinea), methanospirillum (Methanospirillum), Methane capsule bacterium (Methanoculleus), uses document [International Biodeterioration& Biodegradation] the 65th phase 444-450 page in 2011 report 16S rDNA method be analyzed identify.
CN201310479743.7A 2013-10-14 2013-10-14 The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir Active CN103670347B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310479743.7A CN103670347B (en) 2013-10-14 2013-10-14 The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir
PCT/CN2014/087046 WO2015055072A1 (en) 2013-10-14 2014-09-22 Method for producing methane by converting carbon dioxide from methanogens in activated oil reservoir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310479743.7A CN103670347B (en) 2013-10-14 2013-10-14 The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir

Publications (2)

Publication Number Publication Date
CN103670347A CN103670347A (en) 2014-03-26
CN103670347B true CN103670347B (en) 2017-01-04

Family

ID=50309037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310479743.7A Active CN103670347B (en) 2013-10-14 2013-10-14 The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir

Country Status (2)

Country Link
CN (1) CN103670347B (en)
WO (1) WO2015055072A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106013939A (en) * 2016-07-07 2016-10-12 四川大学 Underground city
CN106544369B (en) * 2016-10-11 2020-03-17 华东理工大学 Promoting microbial conversion of oil reservoir into CO2Method for producing methane
CN106929420A (en) * 2017-04-12 2017-07-07 临沂大学 A kind of method of decomposing petroleum hydrocarbon
CN108424947A (en) * 2018-03-15 2018-08-21 华东理工大学 It is a kind of to utilize micro-reduction CO2The method of methane phase and acetic acid simultaneously
CN110317835A (en) * 2018-03-30 2019-10-11 中国石油化工股份有限公司 A kind of reinforcing methanogen conversion CO2The method of synthesizing methane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1988971A (en) * 2004-05-28 2007-06-27 纽卡斯尔大学 Process for stimulating production of hydrogen from petroleum in subterranean formations
CN102027195A (en) * 2008-05-12 2011-04-20 合成基因组股份有限公司 Methods to stimulate biogenic methane production from hydrocarbon-bearing
CN102329768A (en) * 2011-09-19 2012-01-25 华东理工大学 Flora construction method for residual oil gasification exploitation of oil deposit
CN102985514A (en) * 2010-04-21 2013-03-20 克里斯能量有限公司 Solubilization of carbonaceous materials and conversion to hydrocarbons and other useful products

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6543535B2 (en) * 2000-03-15 2003-04-08 Exxonmobil Upstream Research Company Process for stimulating microbial activity in a hydrocarbon-bearing, subterranean formation
US8092559B2 (en) * 2004-05-12 2012-01-10 Luca Technologies, Inc. Generation of hydrogen from hydrocarbon bearing materials
GB0412060D0 (en) * 2004-05-28 2004-06-30 Univ Newcastle Process for stimulating production of methane from petroleum in subterranean formations
CN101818634B (en) * 2010-04-23 2013-04-03 中国石油化工股份有限公司 Method for regulating and controlling microbial community for oil extraction
CN102900407B (en) * 2012-10-10 2016-02-10 中国石油化工股份有限公司 One utilizes CO 2drive the remaining CO of rear oil reservoir 2the method of Reforming Methane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1988971A (en) * 2004-05-28 2007-06-27 纽卡斯尔大学 Process for stimulating production of hydrogen from petroleum in subterranean formations
CN102027195A (en) * 2008-05-12 2011-04-20 合成基因组股份有限公司 Methods to stimulate biogenic methane production from hydrocarbon-bearing
CN102985514A (en) * 2010-04-21 2013-03-20 克里斯能量有限公司 Solubilization of carbonaceous materials and conversion to hydrocarbons and other useful products
CN102329768A (en) * 2011-09-19 2012-01-25 华东理工大学 Flora construction method for residual oil gasification exploitation of oil deposit

Also Published As

Publication number Publication date
WO2015055072A1 (en) 2015-04-23
CN103670347A (en) 2014-03-26

Similar Documents

Publication Publication Date Title
Kumar et al. A comprehensive overview on light independent fermentative hydrogen production from wastewater feedstock and possible integrative options
Wu et al. Medium chain carboxylic acids production from waste biomass: Current advances and perspectives
US9434872B2 (en) Biogenic fuel gas generation in geologic hydrocarbon deposits
CN104295276B (en) A kind of method improving coal bed gas recovery ratio
CN103670347B (en) The raw methanogenic method of methanogen chemical recycling of carbon dioxide in activation oil reservoir
Luo et al. Evaluation of pretreatment methods on mixed inoculum for both batch and continuous thermophilic biohydrogen production from cassava stillage
Ceron-Chafla et al. Direct and indirect effects of increased CO2 partial pressure on the bioenergetics of syntrophic propionate and butyrate conversion
CN107387044A (en) A kind of method that biological methane output is improved using coal seam origin fungi
Weimer et al. Impacts of ruminal microorganisms on the production of fuels: how can we intercede from the outside?
Li et al. Enhancement of bio-hydrogen yield and pH stability in photo fermentation process using dark fermentation effluent as succedaneum
CN103865820B (en) A kind of rattan Flavimonas and Synthesis and applications thereof
Chu et al. Effects of substrate concentration and hydraulic retention time on hydrogen production from common reed by enriched mixed culture in continuous anaerobic bioreactor
Yuan et al. Enhancement effect of l-cysteine on dark fermentative hydrogen production
Kargi et al. Dark fermentation of ground wheat starch for bio-hydrogen production by fed-batch operation
CN103060245A (en) Compound microorganism bacterium agent of biological coalbed methane prepared by coal bed organic impurities and application thereof
CN104404086A (en) Method for regulating and controlling oil-reservoir microbe metabolism for producing biogas
CN103865821B (en) A kind of chelating coccus and Synthesis and applications thereof
Ekwenna et al. Exploring the feasibility of biological hydrogen production using seed sludge pretreated with agro-industrial wastes
CN102329822A (en) Method for regulating and controlling methane production rate by virtue of anaerobic biodegradation of petroleum hydrocarbon
CN105524945A (en) A method of improving ammonia nitrogen tolerance in continuous anaerobic digestion for kitchen waste
AU2011226787B2 (en) Biogenic fuel gas generation in geologic hydrocarbon deposits
Budwill et al. Advancements in understanding and enhancing biogenic methane production from coals
Ramaraj et al. Effects of substrate concentration and hydraulic retention time on hydrogen production from common reed by enriched mixed culture in continuous anaerobic bioreactor
Acton Issues in bioengineering and bioinformatics: 2013 Edition
Thompson et al. Anaerobic Hydrogen Production using Agricultural and Food Processing Wastes

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210113

Address after: 163000 No.21, Nansan Road, Honggang District, Daqing City, Heilongjiang Province

Patentee after: DAQING HUALI BIOTECHNOLOGY Co.,Ltd.

Address before: 200237 No. 130, Meilong Road, Shanghai, Xuhui District

Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY

TR01 Transfer of patent right
CP03 Change of name, title or address

Address after: 163000 No. 328, Nansan Road, Honggang District, Daqing City, Heilongjiang Province

Patentee after: Daqing Huali Biotechnology Co.,Ltd.

Address before: 163000 No. 21, Nansan Road, Honggang District, Daqing City, Heilongjiang Province

Patentee before: DAQING HUALI BIOTECHNOLOGY Co.,Ltd.

CP03 Change of name, title or address