CN104445338A - Waste drilling mud treatment method - Google Patents
Waste drilling mud treatment method Download PDFInfo
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- CN104445338A CN104445338A CN201410643143.4A CN201410643143A CN104445338A CN 104445338 A CN104445338 A CN 104445338A CN 201410643143 A CN201410643143 A CN 201410643143A CN 104445338 A CN104445338 A CN 104445338A
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- mud
- barite
- flotation
- drilling
- waste
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- 238000005553 drilling Methods 0.000 title claims abstract description 73
- 239000002699 waste material Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 39
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 52
- 239000010428 baryte Substances 0.000 claims abstract description 30
- 229910052601 baryte Inorganic materials 0.000 claims abstract description 30
- 238000005188 flotation Methods 0.000 claims abstract description 29
- 230000004048 modification Effects 0.000 claims abstract description 11
- 238000012986 modification Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 26
- 238000005520 cutting process Methods 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 10
- -1 polyoxyethylene Polymers 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 7
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 6
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 6
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 6
- 239000005642 Oleic acid Substances 0.000 claims description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 6
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 6
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 229920001732 Lignosulfonate Polymers 0.000 claims description 4
- 235000019357 lignosulphonate Nutrition 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 claims description 2
- 229940037003 alum Drugs 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000003469 silicate cement Substances 0.000 claims description 2
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000009671 shengli Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- 238000012958 reprocessing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a waste drilling mud treatment method. Aiming at the characteristics that waste drilling mud contains a lot of drillings powder and is relatively high in soluble salt content, barite is primarily separated out by using a flotation separation method; the floated barite is further subjected to surface modification, so that the barite completely adapts to re-configuration of the drilling mud; and the drillings generated in the barite separation process are mixed with waste liquid sludge, and then are re-injected into stratum after being ground. The method disclosed by the invention has the characteristics of environmental friendliness and good economic benefits.
Description
Technical field
The invention belongs to drilling wastes process field, particularly waste drilling mud treatment process.
Background technology
The waste water that drilling wastes is produced by drilling waste mud, drilling well and drilling cuttings etc. form, and having oils, suspended solid, heavy metal ion content is high, water-cut variation is large, be difficult to the features such as dehydration, is one of primary pollution source of current oil-gas field.If the direct discharge of drilling wastes can affect the growth of farm crop, after long-term stacking, can soil be infiltrated, and further polluted underground water.Therefore the attention that harmless treatment more and more causes people is carried out to waste drilling mud.Drilling mud is different with drilling technology needs and geologic condition etc.Domestic drilling mud is primarily of the heterogeneous stabilising system of clay, drilling cuttings, high-density weighting material (mainly barite, cement etc.), chemical additive, inorganic salt composition.Current China is annual because the refuse total release of drilling well generation is up to 200 ten thousand steres, and the drill waste on land adopts solidification treatment mostly.
The drilling waste mud treatment process being known as at present most environmental protection in the world injects suitable stratum after drilling wastes is pulverized pulp.Well drilling detritus, by grinding and sieve and adding suitable water, also can add appropriate viscosifying agent as needed before injection stratum.This technology mainly adopts with domestic part offshore oilfield at present abroad.
Domesticly not yet develop comparatively suitable drilling mud treatment facility and technique at present, major part oil field all adopts curing mode process drilling wastes, namely a large amount of solidifying agent is added to drill waste species, moisture is wherein made to be become solids emergency burial by absorption solidification, main solidifying agent comprises lime, flyash, cement, water glass, silicate etc.In fact objectionable impurities can not solidify by such treatment process completely, and its nuisance meeting slow release hidden, in soil and groundwater, is difficult to avoid secondary pollution.
Along with domestic and international for the continuous reinforcement of environment protection dynamics; emission request for drilling wastes can be more and more stricter; will inevitably be prohibited by the mode of adding solidifying agent process drilling wastes, find real green drilling damage treatment process and be only correct selection.
On the other hand, main ingredient in waste drilling mud is except drilling cuttings, other a lot of components are as valuable materials such as the salt of barite, solubility, as long as take rational processing method, not only can bring significant ecological environment benefit, can also turn waste into wealth, produce certain economic benefit.The main waste drilling fluid recoverying and utilizing method of research comprises the barite, drilling cuttings etc. in Separation and Recovery waste drilling mud both at home and abroad at present.Wherein barite is used for again preparing drilling mud, and drilling cuttings is then used as cement raw material or direct as material of construction.Domestic and international disclosed waste drilling mud barite recovery method mainly centrifugal settling technique at present.It is high to there is process cost in this technique, and drilling cuttings is separated halfway problem.
CN1887752A discloses a kind of method of oil field sludge resource process.This treatment process comprises that discarded slurry mud rinses furfur, dilution absorption, broken glue break steady oil removing, consolidation and solid-liquid separation, in filter cake and backwash desalination, in filtrate and reprocessing is filtered in oxidation, mud cake solidification utilizes.Thoroughly can solve pollution problem and the comprehensive utilization of waste materials problem of the oil sludge of waste and the oil-extracting and water-injecting system generation produced in drilling well production process, turn waste into wealth, larger economic benefit can be obtained.
CN101302067A discloses a kind of water-based system drilling waste slurry solid-liquid separating medium harmless treatment process, mainly comprise following processing step: its pH value is adjusted to and is not more than 5 by pending water-based system drilling waste slurry solid-liquid separating medium industrial acids, pH value adds fenton reagent after regulating and carries out oxide treatment, add neutralizing agent after oxidizing reaction and pH value is adjusted to 7-8, carry out neutralization reaction, microorganism reactor is sent into through filtering filter residue after neutralization reaction, with taking from active sludge through cultivating, domestication, microorganism after screening carries out biological degradation process.Water-based system drilling waste slurry solid-liquid separating medium is after process of the present invention, and every Testing index of discharging current does not all exceed standard, and fully meet the integrated wastewater discharge standard that Chinese Government formulates, and processing cost is low, processing efficiency is high.
Summary of the invention
The present invention is directed in waste drilling mud and have a large amount of drilling cuttings powder and the higher feature of soluble salt content, the method initial gross separation of flotation separation is utilized to go out barite, then further surface modification is carried out for the barite after flotation, overcome the shortcoming reclaiming mud stability difference when barite is reused, the mud of the barite preparation using the method to reclaim does not have difference substantially with the mud property using new barite to prepare.The drilling cuttings residue produced after adopting the present invention to reclaim barite and liquid waste sludge mixing are again recycled in stratum after grinding, and solve the problem of mud offal treatment.Method provided by the invention has the good feature of environmental friendliness, economic benefit.
The ground barium sulfate of floatation recovery from waste drilling mud, owing to adding flotation machine in the process of flotation, modification is carried out to barite surface, therefore need to carry out surface modification to barite when being reused for preparation drilling mud, it is made again to have wetting ability, the present inventor is according to repetition test, find by adding quaternary ammonium salt surface active agent and polyoxyethylene glycol just can realize surface modification, especially by the additional proportion of the two, surface modification effect more better than new ground barium sulfate even can be reached.
The invention discloses one from waste drilling mud recovery and treatment method, comprise the following steps: (1) sieves to waste drilling mud, removing particle diameter is greater than the solid particulate of 1mm; (2) add sulfuric acid, the pH value in adjustment waste drilling mud is 6-7; (3), add appropriate water, control the density of mud suspension liquid at 1.2-1.3g/ml; (4) add flotation additive in flotation machine, obtain barite through flotation in 5-10 days; (5) the barite properties-correcting agent that flotation obtains carries out surface modification; (6) waste water produced in flotation barite process and mud and step (1) are filtered produce solid particulate drilling cuttings and mix and be crushed to particle diameter and be less than 3mm, obtain pulverizing mud; (7) the pulverizing mud that step (6) obtains is recycled in stratum.The add-on of wherein said flotation additive is every cubic metre of mud, water glass 600-1000g, oleic acid 300-500g, sodium laurylsulfonate 300-500g, citric acid 50-100g.
Wherein flotation step is carried out 1-6 time, preferably carries out 3-4 time.
Described properties-correcting agent is polyoxyethylene glycol and quaternary ammonium salt, and its consumption is that barite per ton uses 1-5kg polyoxyethylene glycol, 2-8kg quaternary ammonium salt.Described quaternary ammonium salt is the common quaternary ammonium salt cationic surfactant in this area, preferably
The mass ratio of quaternary ammonium salt described in properties-correcting agent and polyoxyethylene glycol is 1-2:1.
Can also add sulfonated lignin in described properties-correcting agent, add-on is barite 1-5kg per ton.Described sulfonated lignin are preferably sodium lignosulfonate or lignosulfonic acid aluminium.
The weight-average molecular weight of polyoxyethylene glycol is 300-1000.
The mass concentration of described sulfuric acid is 1-30%.
In the process being recycled into bottom, can also add solidifying agent, described solidifying agent can be one or more in the conventional solidifying agent such as silicate cement, alum, water glass, lime.
In the present invention, preferred oleic acid is as collecting agent, change the wetting ability on barite particle surface, barite particle is made to have flotability, water glass is used for for suppressing the silicate granules in mud, the silicates material of barite particle and drilling cuttings class is separated smoothly, ensures bar purity.Citric acid is used for the pH value regulated further in mud, and sodium laurylsulfonate for regulating the aggregation velocity of particle, ensures the quality of flotation as dispersion agent.
Embodiment
Embodiment 1
Shengli Oil Field waste drilling mud 150m
3, after removing wherein larger foreign material, be that 20 order sieving separating go out drilling cuttings larger in mud with sieve aperture, add the sulfuric acid that concentration is 30% in a kettle., and fully stir, treat that the pH value of drilling cuttings reaches till 6, add appropriate water, by the density domination of mud at 1.25g/ml, add water glass 150kg, oleic acid 45kg, sodium laurylsulfonate 45kg, citric acid 15kg, under agitation condition, mud is imported in flotation cell again and carry out flotation, through 5d, obtain ground barium sulfate 47 tons, add 50kg polyoxyethylene glycol, quaternary ammonium salt 100kg carries out modification, namely obtaining can reusable ground barium sulfate, the ground barium sulfate of recovery is used for prepare drilling mud and prepares new drilling mud, the wastewater sludge that the drilling cuttings obtained and flotation produce is altogether through mixing, grind and be less than 3mm as particle diameter, be recycled in stratum.
Embodiment 2
Shengli Oil Field waste drilling mud 210m
3, after removing wherein larger foreign material, be that 20 order sieving separating go out drilling cuttings larger in mud with sieve aperture, add the sulfuric acid that concentration is 15% in a kettle., and fully stir, treat that the pH value of drilling cuttings reaches till 6.5, add appropriate water, by the density domination of mud at 1.3g/ml, add water glass 210kg, oleic acid 90kg, sodium laurylsulfonate 50kg, citric acid 20kg, under agitation condition, mud is imported in flotation cell again and carry out flotation, through 5d, obtain ground barium sulfate 61 tons, add 60kg polyoxyethylene glycol, quaternary ammonium salt 60kg carries out modification, namely obtaining can reusable ground barium sulfate, the ground barium sulfate of recovery is used for prepare drilling mud and prepares new drilling mud, the wastewater sludge that the drilling cuttings obtained and flotation produce is altogether through mixing, grind and be less than 3mm as particle diameter, be recycled in stratum.
Embodiment 3
North China Oilfield waste drilling mud 100m
3, after removing wherein larger foreign material, be that 20 order sieving separating go out drilling cuttings larger in mud with sieve aperture, add the sulfuric acid that concentration is 25% in a kettle., and fully stir, treat that the pH value of drilling cuttings reaches till 6, add appropriate water, by the density domination of mud at 1.27g/ml, add water glass 120kg, oleic acid 50kg, sodium laurylsulfonate 40kg, citric acid 10kg, under agitation condition, mud is imported in flotation cell again and carry out flotation, through 7d, obtain ground barium sulfate 25 tons, add 30kg polyoxyethylene glycol, quaternary ammonium salt 60kg carries out modification, namely obtaining can reusable ground barium sulfate, the ground barium sulfate of recovery is used for prepare drilling mud and prepares new drilling mud, the wastewater sludge that the drilling cuttings obtained and flotation produce is altogether through mixing, grind and be less than 3mm as particle diameter, be recycled in stratum.
Claims (9)
1. a drilling wastes treatment process, comprises the following steps: (1) sieves to waste drilling mud, and removing particle diameter is greater than the solid particulate of 1mm; (2) add sulfuric acid, the pH value in adjustment waste drilling mud is 6-7; (3), add appropriate water, control the density of mud suspension liquid at 1.2-1.3g/ml; (4) add flotation additive in flotation machine, obtain barite through flotation in 5-10 days; (5) the barite properties-correcting agent that flotation obtains carries out surface modification; (6) waste water produced in flotation barite process and mud and step (1) are filtered produce solid particulate drilling cuttings and mix and be crushed to particle diameter and be less than 3mm, obtain pulverizing mud; (7) the pulverizing mud that step (6) obtains is recycled in stratum.Wherein the add-on of institute's flotation additive is in every cubic metre of mud, adds water glass 600-1000g, oleic acid 300-500g, sodium laurylsulfonate 300-500g, citric acid 50-100g.
2. the method for claim 1, is characterized in that described flotation step is carried out 1-6 time.
3. the method for claim 1, is characterized in that the properties-correcting agent described in step (4) is ethylene glycol and quaternary ammonium salt, and its consumption is that barite per ton uses 1-5kg polyoxyethylene glycol, 2-8kg quaternary ammonium salt.
4. method as claimed in claim 3, is characterized in that the mass ratio of described quaternary ammonium salt and ethylene glycol is 1-2:1.
5. method as claimed in claim 3, is characterized in that the weight-average molecular weight of described polyoxyethylene glycol is 300-1000.
6. method as claimed in claim 4, is characterized in that the properties-correcting agent described in step (4) also comprises sulfonated lignin, and its consumption is that barite per ton uses 1-5kg.
7. method as claimed in claim 6, is characterized in that described sulfonated lignin are one or more in sodium lignosulfonate and lignosulfonic acid aluminium.
8. the method for claim 1, is characterized in that described solidifying agent is one or more in silicate cement, alum, water glass or lime.
9. the method for claim 1, is characterized in that the mass concentration of described sulfuric acid is 1-30%.
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| CN201410643143.4A CN104445338B (en) | 2014-11-13 | 2014-11-13 | A kind of waste drilling mud processing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106630761A (en) * | 2015-11-02 | 2017-05-10 | 中国石油化工股份有限公司 | Warm-mixing sulfur asphalt mixture and preparation method thereof |
| CN111822153A (en) * | 2020-06-18 | 2020-10-27 | 重庆长能环境科技有限公司 | Collecting agent for recovering carbonaceous fuel from oil-based drill cuttings and preparation method thereof |
| CN115340121A (en) * | 2022-10-14 | 2022-11-15 | 四川君和环保股份有限公司 | Method for separating barite from shale gas drilling mud |
| CN115351050A (en) * | 2022-08-10 | 2022-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for solving problem of difficult filtration of water quenching titanium extraction tailings |
| CN116712760A (en) * | 2023-08-08 | 2023-09-08 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Method for circularly separating weighting materials from weighting drilling mud |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630761A (en) * | 2015-11-02 | 2017-05-10 | 中国石油化工股份有限公司 | Warm-mixing sulfur asphalt mixture and preparation method thereof |
| CN106630761B (en) * | 2015-11-02 | 2018-11-06 | 中国石油化工股份有限公司 | A kind of warm mix Sulphur asphalt mixture and preparation method thereof |
| CN111822153A (en) * | 2020-06-18 | 2020-10-27 | 重庆长能环境科技有限公司 | Collecting agent for recovering carbonaceous fuel from oil-based drill cuttings and preparation method thereof |
| CN115351050A (en) * | 2022-08-10 | 2022-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for solving problem of difficult filtration of water quenching titanium extraction tailings |
| CN115351050B (en) * | 2022-08-10 | 2023-09-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for solving filtering difficulty of water quenching titanium extraction tailings |
| CN115340121A (en) * | 2022-10-14 | 2022-11-15 | 四川君和环保股份有限公司 | Method for separating barite from shale gas drilling mud |
| CN116712760A (en) * | 2023-08-08 | 2023-09-08 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Method for circularly separating weighting materials from weighting drilling mud |
| CN116712760B (en) * | 2023-08-08 | 2023-10-03 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Method for circularly separating weighting materials from weighting drilling mud |
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