CN104402192A - Harmless treatment method and equipment for waste oil-base mud - Google Patents
Harmless treatment method and equipment for waste oil-base mud Download PDFInfo
- Publication number
- CN104402192A CN104402192A CN201410738689.8A CN201410738689A CN104402192A CN 104402192 A CN104402192 A CN 104402192A CN 201410738689 A CN201410738689 A CN 201410738689A CN 104402192 A CN104402192 A CN 104402192A
- Authority
- CN
- China
- Prior art keywords
- base mud
- stirring
- incineration system
- burning
- mixed
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000002699 waste material Substances 0.000 title abstract 3
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 239000002817 coal dust Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000004484 Briquette Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003532 endogenous pyrogen Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 108010052620 leukocyte endogenous mediator Proteins 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/48—Solid fuels essentially based on materials of non-mineral origin on industrial residues and waste materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
Abstract
The invention provides a treatment method for a waste oil-base mud. The method comprises the steps of mixing the waste oil-base mud produced during oil field drilling with an auxiliary mixture, stirring, modeling, burning, and finally obtaining steam, flue gas and slag charge. The method can realize heat recovery and recycling, reduces the cost, improves the efficiency, and thoroughly achieves harmless treatment, and completely mineralizes and discharges slag, without causing secondary pollution. The invention further provides special equipment for the method.
Description
Technical field
The present invention relates to a kind for the treatment of process and specific equipment of the discarded oil-base mud for producing in oilfield drilling.
Background technology
Discarded oil-base mud, because of containing pollutents such as oils, heavy metal, organism, belongs to National Hazard refuse, environmental management requires strict.Abroad, generally adopt and concentrate reinjection into reservoir treatment process, cost is very high, and also very harsh to the requirement of reinjection into reservoir.By the restriction of ground sheaf space, have to often find suitable stratum.Due to the protection of the subterranean resource such as underground water and the restriction of technology and cost, domestic and international land bored well does not adopt reinjection into reservoir method process rejected well drilling liquid, usually adopts method process such as concentrating storage, security landfill, thermal treatment, distillation method process.The processing cost of security landfill is low, but has just carried out Seal & isolation to pollutent, can not removal of pollutants completely, and environmental risk is still very large.The abendoned oil such as thermal treatment, distillation method base drilling fluid treatment process complex process, cost are high, and the general oilfield enterprise of running cost is difficult to bear.
The discarded oil-base mud that current oil field produces every year reaches more than tens0000 tons, so, explore oil-base mud novel process, novel method that a kind of easy harmless treatment is discarded, for improving local environment, Chan Wu unit pollutes innoxious governance tool and is of great significance.
Summary of the invention
The object of the invention is to provide a kind of discarded oil base slurry process, this method can realize the harmless treatment of discarded oil-base mud with lower cost, thoroughly solve problem of environmental pollution.
The present invention seeks to by such technical scheme realize:
First, a kind for the treatment of process of discarded oil-base mud is provided, comprises the following steps: after being mixed with auxiliary mixed agent by the discarded oil-base mud produced in oilfield drilling, through stirring, moulding, burning, obtain steam, flue gas and slag charge.
In method of the present invention, described auxiliary mixed agent, both coal dust, clay etc., may also be the slag recycled, the initial stage uses the mixed agent such as coal dust, clay, namely replaces with slag after generation slag.
In method of the present invention, the preferred 5:5 ~ 7:3 of mixed weight ratio of described discarded oil-base mud and auxiliary mixed agent; Preferred 6:4 further.
In method of the present invention, preferred heated material to 50 ~ 80 DEG C while described stirring; Described heating preferably provides thermal source by burning the steam obtained.
In method of the present invention, described moulding can use multiple kinds of molds according to need to be shaped to spherical, honeycomb coaly equal strength large, the burning raw material shape of multi-pore channel, shaping material need meet the requirement of follow-up burning process to intensity and porosity.
In method of the present invention, described burning is preferably burnt 30 ~ 50 minutes at 850-1050 DEG C.
The treatment process of the most preferred a kind of discarded oil-base mud of the present invention, comprises the following steps:
1) the discarded oil-base mud produced in oilfield drilling is mixed with the weight ratio of coal dust according to 6:4, obtain mixture;
2) by step 1) mixture that obtains is heated to 50 ~ 80 DEG C while carrying out stirring, until form the material mixed;
3) by step 2) material mixed that obtains is shaped to honeycomb coaly, then 850-1050 DEG C of burning 40 minutes, discharges after the fume treatment obtained to conformance with standard; The steam obtained returns step 2) as heat source; The slag charge obtained returns step 1) substitute coal dust mix with discarded oil-base mud.
The present invention also provides a set of equipment being exclusively used in above-mentioned treatment process, is at least composed in series successively by e Foerderanlage by mud tank, auxiliary mixed agent case, stirring blending device, molder and incineration system; Described stirring blending device is provided with the heating unit of band thermal source inlet; Described incineration system, except being provided with the fuel inlet that is connected with described molder, is also provided with vapour outlet and slag-drip opening; The thermal source inlet of the stirring blending device described in the vapour outlet of described incineration system is connected by pipeline; Auxiliary mixed agent case described in the slag-drip opening of described incineration system is connected by pipeline.
In the preferred a kind of equipment scheme of the present invention, described process is discarded the mud tank in the equipment of oil-base mud, auxiliary mixed agent case, stirring blending device and molder and be arranged on the first sledge, incineration system is arranged on the second sledge; Use automatic charging device that two sledges are connected charging.
In the further preferred equipment scheme of the present invention, the incineration system that the second described sledge is arranged is made up of at least 2 incinerators walked abreast.
Preferably slush pump is set further between described mud tank and auxiliary mixed agent case.
When utilizing equipment of the present invention to carry out the process of discarded oil-base mud, after discarded oil-base mud in described mud tank 1 is mixed with the auxiliary mixed agent in auxiliary mixed agent case 2 by slush pump, deliver to and stir blending device 3, deliver to molder 4 moulding after both mixtures, the material after moulding is delivered in incineration system 5 by feeding system and is burned; Establish heating unit in described stirring blending device 3, incineration system burning produces steam, flue gas and slag charge, and steam is discharged from described vapour outlet and entered by pipeline and stirs the heating unit of blending device as thermal source; Flue gas discharges after fume treatment; Slag charge enters described auxiliary mixed agent case by pipeline after discharging from described slag-drip opening, substitutes original auxiliary mixed agent.
Described molder 4, is equipped with multiple kinds of molds, can according to need to be shaped to spherical, honeycomb coaly equal strength large, the burning raw material of multi-pore channel, meets the requirement of incineration system to intensity and porosity.
Method and apparatus of the present invention has following beneficial effect:
(1) auxiliary mixed agent easily obtains, both coal dust, clay etc., may also be the slag recycled.
(2) realize heat recovery cycle in system to utilize, reduce costs, raise the efficiency.
(3) equipment suitability is strong, can the difform intensity such as spherical, honeycomb coaly are large, the burning raw material of multi-pore channel according to needing to be shaped to.
(4) thoroughly realize harmless treatment, the thorough mineralising of slag is arranged outward, can not bring secondary pollution.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the device systems that the discarded oil-base mud harmless treatment described in the embodiment of the present invention uses.
Description of symbols in Fig. 1 is as follows:
1-mud tank; 2-assists mixed agent case; 3-stirs blending device; 4-molder; 5-incinerator.
Embodiment
Below by embodiment, the present invention is described in further details.
Embodiment
A kind of discarded oil-base mud harmless treatment way, after being mixed with auxiliary mixed agent by the discarded oil-base mud produced in oilfield drilling, through stirring, moulding, burning, obtains steam, flue gas and slag charge; The whole plant that this process uses, as shown in Figure 1, is composed in series by e Foerderanlage successively by mud tank 1, auxiliary mixed agent case 2, stirring blending device 3, molder 4 and incineration system 5; Described stirring blending device 3 is provided with the heating unit of band thermal source inlet; Described incineration system 5, except being provided with the fuel inlet that is connected with described molder 4, is also provided with vapour outlet and slag-drip opening; The thermal source inlet of the stirring blending device 3 described in the vapour outlet of described incineration system 5 is connected by pipeline; Auxiliary mixed agent case 2 described in the slag-drip opening of described incineration system 5 is connected by pipeline.
First, as shown in Figure 1, the discarded oil-base mud in mud tank 1 is mixed with the auxiliary mixed agent in auxiliary mixed agent case 2 by slush pump.When starting to process, discarded oil-base mud mixes with coal dust, mixed ratio is 6:4, then stir composite in stirring blending device 3, heating coil is established in stirring blending device 3, can by heating material to 50 ~ 80 DEG C, coil pipe endogenous pyrogen is the steam that incineration system 5 produces, under stirring and heat effect, discarded oil-base mud forms with coal dust the material mixed.Molder 4 moulding is delivered to after both mixtures, moulding mould can according to requiring to change, and this embodiment is shaped to honeycomb coaly, compact dimensions: diameter * height (mm): 120*70,12 holes, have slight oily taste, ultimate compression strength is suitable with normal cellular coal intensity, and calorific value is 3600KCAL/KG, water content 11.86%, ash content: 46.48%, volatility: 20.57%, fixed carbon: 30.24%.Such multi-pore channel is beneficial to follow-up burning.Honeycomb briquette after moulding delivers to the fuel inlet of incineration system 5 by helical feed feeding system, enter in incinerator and burn, because calorific value is inadequate during beginning, incinerator arranges auxiliary fuel mouth, uses Sweet natural gas to do auxiliary fuel, after honeycomb briquette is ignited, can stop adding Sweet natural gas, accumulation of heat grate firing is realized, fire box temperature: 850-1050 degree, combustion time: about 40 minutes/block by honeycomb briquette self heat.The flue gas produced after burning, after fume treatment, discharges; The steam formed stirs blending device 3 as thermal source by pipeline supply and uses; Slag is discharged by automatic sludge discharge system in stove, and is delivered in auxiliary mixed agent case 2 by delivery system, and alternative coal dust does auxiliary mixed agent.
Aforesaid method achieve cost-saving while, reach the secondary combustion of slag, achieve the harmless treatment thoroughly of discarded oil-base mud.
Claims (10)
1. a treatment process for discarded oil-base mud, is characterized in that: after being mixed with auxiliary mixed agent by the discarded oil-base mud produced in oilfield drilling, through stirring, moulding, burning, obtain steam, flue gas and slag charge.
2. method according to claim 1, is characterized in that: any one or two or more mixtures in the slag charge that described auxiliary mixed agent is coal dust, clay or described burn down step obtain.
3. method according to claim 1, is characterized in that: described discarded oil-base mud and the mixed weight ratio of auxiliary mixed agent are 5:5 ~ 7:3.
4. method according to claim 1, is characterized in that: heated material to 50 ~ 80 DEG C while described stirring.
5. method according to claim 4, is characterized in that: described heating provides thermal source by burning the steam obtained.
6. method according to claim 1, is characterized in that: described moulding obtains porous material that is spherical or honeycomb coaly.
7. method according to claim 1, is characterized in that: described burning is burnt 30 ~ 50 minutes at 850-1050 DEG C.
8. method according to claim 1, is characterized in that, comprises the following steps:
1) the discarded oil-base mud produced in oilfield drilling is mixed with the weight ratio of coal dust according to 6:4, obtain mixture;
2) by step 1) mixture that obtains is heated to 50 ~ 80 DEG C while carrying out stirring, until form the material mixed;
3) by step 2) material mixed that obtains is shaped to honeycomb coaly, then 850-1050 DEG C of burning 40 minutes, discharges after the fume treatment obtained to conformance with standard; The steam obtained returns step 2) as heat source; The slag charge obtained returns step 1) substitute coal dust mix with discarded oil-base mud.
9. a set of equipment being exclusively used in method according to claim 1, is characterized in that: it is at least composed in series by e Foerderanlage successively by mud tank, auxiliary mixed agent case, stirring blending device, molder and incineration system; Described stirring blending device is provided with the heating unit of band thermal source inlet; Described incineration system, except being provided with the fuel inlet that is connected with described molder, is also provided with vapour outlet and slag-drip opening; The thermal source inlet of the stirring blending device described in the vapour outlet of described incineration system is connected by pipeline; Auxiliary mixed agent case described in the slag-drip opening of described incineration system is connected by pipeline.
10. equipment according to claim 9, is characterized in that: described mud tank, auxiliary mixed agent case, stirring blending device and molder are arranged on the first sledge, and incineration system is arranged on the second sledge; Automatic charging device is used to be connected by two sledges; The incineration system that the second described sledge is arranged is made up of at least 2 incinerators walked abreast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738689.8A CN104402192B (en) | 2014-12-05 | 2014-12-05 | The method for innocent treatment of a kind of discarded oil-base mud and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738689.8A CN104402192B (en) | 2014-12-05 | 2014-12-05 | The method for innocent treatment of a kind of discarded oil-base mud and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104402192A true CN104402192A (en) | 2015-03-11 |
| CN104402192B CN104402192B (en) | 2016-08-17 |
Family
ID=52639879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738689.8A Active CN104402192B (en) | 2014-12-05 | 2014-12-05 | The method for innocent treatment of a kind of discarded oil-base mud and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104402192B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249600A (en) * | 1985-04-27 | 1986-11-06 | Agency Of Ind Science & Technol | Treatment of oil storage tank sludge |
| CN101134632A (en) * | 2006-08-28 | 2008-03-05 | 扬州石油化工厂 | Process for disposal of oil-containing sludge |
| CN101781073A (en) * | 2010-01-26 | 2010-07-21 | 东北大学 | Method of dewatering sludge and turning sludge into fuel |
| CN103134053A (en) * | 2011-11-22 | 2013-06-05 | 上海巴安水务股份有限公司 | Drying incineration treatment method for sludge containing oil |
| CN203715462U (en) * | 2013-10-29 | 2014-07-16 | 大连环资科技有限公司 | Complete equipment for oily sludge resourceful treatment |
-
2014
- 2014-12-05 CN CN201410738689.8A patent/CN104402192B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249600A (en) * | 1985-04-27 | 1986-11-06 | Agency Of Ind Science & Technol | Treatment of oil storage tank sludge |
| CN101134632A (en) * | 2006-08-28 | 2008-03-05 | 扬州石油化工厂 | Process for disposal of oil-containing sludge |
| CN101781073A (en) * | 2010-01-26 | 2010-07-21 | 东北大学 | Method of dewatering sludge and turning sludge into fuel |
| CN103134053A (en) * | 2011-11-22 | 2013-06-05 | 上海巴安水务股份有限公司 | Drying incineration treatment method for sludge containing oil |
| CN203715462U (en) * | 2013-10-29 | 2014-07-16 | 大连环资科技有限公司 | Complete equipment for oily sludge resourceful treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104402192B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104453747B (en) | Resource utilization method of oil and gas field well drilling abandoned oil-base mud | |
| CN104748130A (en) | Oil-bearing solid waste resource utilization device and method | |
| CN204629501U (en) | A kind of zero-emission, the complete cracking treatment system of energy self consumption type rubbish | |
| CN101433904A (en) | Energy sources regeneration of urban domestic garbage and non-waste comprehensive utilization processing technique | |
| CN104263398B (en) | A kind of municipal wastes produces the method for garbage derivatived fuel and diesel oil | |
| CN106947509B (en) | A kind of system and method that plastics pyrolytic gasification prepares oil product | |
| CN102374539A (en) | Novel pyrolyzing furnace for domestic garbage disposal and garbage disposal system using same | |
| CN108840544A (en) | A kind of reclaiming industrial sludge processing method | |
| CN103420555A (en) | Oil sludge treating system and method | |
| CN201713489U (en) | Fully enclosed equipment system converting municipal sludge into gaseous, liquid and solid fuels | |
| CN203360242U (en) | Oil sludge treatment system | |
| CN205904223U (en) | Oil solid waste resource recovery device | |
| CN205382078U (en) | Shale pneumatic drill bits and fatlute oil foot environmental protection treatment facility | |
| CN102536460A (en) | Method and system for recycling electric energy of waste heat of plasma | |
| CN204625560U (en) | Oil-sand harmless resource utilization device | |
| CN204369744U (en) | A kind of innocent treatment equipment of discarded oil-base mud | |
| CN104402192A (en) | Harmless treatment method and equipment for waste oil-base mud | |
| CN104789249A (en) | Harmless recycling treatment method and special device for oil sand | |
| CN204254628U (en) | A kind of device based on cement plant kiln tail system burning sludge | |
| CN103145305A (en) | Process for preparing synthesis gas or synthetic natural gas or synthetic gasoline by utilizing oil-containing sludge and incinerator thereof | |
| CN207735341U (en) | A kind of electrolysis natural gas Solid state fermentation device | |
| CN106705051A (en) | Novel energy-saving garbage incinerator | |
| CN101265025A (en) | Method for treating silt or dropping slag and device used for the same | |
| CN205447766U (en) | Burner of carbomorphism mud | |
| CN104961307A (en) | Well-drilling solid waste harmless treatment technology and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A harmless treatment method and equipment for waste oil-based mud Effective date of registration: 20220701 Granted publication date: 20160817 Pledgee: Huarong Bank of Xiangjiang Limited by Share Ltd. Changsha branch Pledgor: Beijing Oil HBP Group|BEIJING HBP ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2022430000052 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230908 Granted publication date: 20160817 Pledgee: Huarong Bank of Xiangjiang Limited by Share Ltd. Changsha branch Pledgor: Beijing Oil HBP Group|BEIJING HBP ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2022430000052 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 12th Floor, No. 17 Madian East Road, Haidian District, Beijing, 100088 Patentee after: Beijing Oil HBP Group Patentee after: Beijing HBP Energy Source Technology Co.,Ltd. Address before: 12th Floor, No. 17 Madian East Road, Haidian District, Beijing, 100088 Patentee before: Beijing Oil HBP Group Patentee before: BEIJING HBP ENERGY TECHNOLOGY CO.,LTD. |