CN103708629B - Oil field reinjection water special solid corrosion inhibiting and descaling agent - Google Patents
Oil field reinjection water special solid corrosion inhibiting and descaling agent Download PDFInfo
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- CN103708629B CN103708629B CN201410001812.8A CN201410001812A CN103708629B CN 103708629 B CN103708629 B CN 103708629B CN 201410001812 A CN201410001812 A CN 201410001812A CN 103708629 B CN103708629 B CN 103708629B
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- tetrahydroglyoxaline
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- 238000005260 corrosion Methods 0.000 title claims abstract description 38
- 230000007797 corrosion Effects 0.000 title claims abstract description 37
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 23
- 239000007787 solid Substances 0.000 title claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 31
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims abstract description 29
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 14
- -1 alkyl imidazoline Chemical compound 0.000 claims abstract description 12
- JSYPRLVDJYQMAI-ODZAUARKSA-N (z)-but-2-enedioic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)\C=C/C(O)=O JSYPRLVDJYQMAI-ODZAUARKSA-N 0.000 claims abstract description 10
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims abstract description 10
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 10
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 10
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 10
- 239000003513 alkali Substances 0.000 claims abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 239000011707 mineral Substances 0.000 claims abstract description 9
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 9
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 239000000470 constituent Substances 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
- 235000010755 mineral Nutrition 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- NCBISIFFSNXYQJ-UHFFFAOYSA-N 1-dodecyl-4,5-dihydroimidazole Chemical compound CCCCCCCCCCCCN1CCN=C1 NCBISIFFSNXYQJ-UHFFFAOYSA-N 0.000 claims description 5
- AJUAZEGSIWKMPI-UHFFFAOYSA-N 1-octadecyl-4,5-dihydroimidazole Chemical compound CCCCCCCCCCCCCCCCCCN1CCN=C1 AJUAZEGSIWKMPI-UHFFFAOYSA-N 0.000 claims description 5
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- RZLVQBNCHSJZPX-UHFFFAOYSA-L zinc sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Zn+2].[O-]S([O-])(=O)=O RZLVQBNCHSJZPX-UHFFFAOYSA-L 0.000 claims description 4
- RNZCSKGULNFAMC-UHFFFAOYSA-L zinc;hydrogen sulfate;hydroxide Chemical compound O.[Zn+2].[O-]S([O-])(=O)=O RNZCSKGULNFAMC-UHFFFAOYSA-L 0.000 claims description 4
- 230000005764 inhibitory process Effects 0.000 abstract description 12
- 238000009472 formulation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 229940126589 solid medicine Drugs 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000002332 oil field water Substances 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000002455 scale inhibitor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000008194 pharmaceutical composition Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent and preparation method thereof, belong to the composition suppressing corrosion and scale inhibition in the chemical composition for oil-field water process, particularly disposing polluted water in oil, re-injection process.This corrosion inhibiting and descaling agent, raw materials used composed as follows: concentration is the 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) 20 ~ 50% of 40 ~ 60%, concentration is the maleic acid-acrylic acid copolymer 20 ~ 50% of 40 ~ 60%, concentration is 30 ~ 60% alkyl imidazoline inhibiter 0 ~ 10%, zinc sulfate 0.1 ~ 10%, mineral alkali 3 ~ 40%, Sodium hexametaphosphate 99 10 ~ 30%.Above raw material obtains corrosion inhibiting and descaling agent of the present invention through mediating the operations such as stirring, evaporation concentration, moulding drying, mixing, said preparation can be used for the oil field reinjection water water conditioning having solid medicine system, effectively can reduce the decomposition of formulation storage phase Sodium hexametaphosphate 99, have good anti-corrosion, scale-inhibiting effect to reinjected water treatment system and haulage system.
Description
Technical field
The invention belongs to the composition suppressing corrosion and scale inhibition in the chemical composition for oil-field water process, particularly disposing polluted water in oil, re-injection process.
Background technology
China's oil extraction in oil field generally enters the phase III at present, namely the comprehensive mode of adopting such as to press recover the oil with increasing by reinjected water.Oil field reinjection water is generally the hot water of high salinity, the easy corrosion and scaling of waterflood system.For this reason, corrosion inhibiting and descaling agent to be added in waterflood system.Corrosion inhibiting and descaling agent used is at present generally the compound system of organic phosphoric acid, polymerization of carboxylic acid and polymeric phosphate, is generally water solution system.This system has good limit effect and synergistic, has the advantages such as cost is low, consumption is few, easy to use, but also there is following shortcoming:
1, because formulation is the aqueous solution, need to use a large amount of plastic barrels, packing cost is high, packing material weight is large.Need the thing that is recycled and packaged for this reason, add the storage location of packing material and cost of regulating the traffic.
2, have more than 50% in formula for moisture, this part moisture is invalid component, increases the transportation cost of material on foot.
3, in order to reduce packaging volume and transportation cost, usually will be mixed with the formula formulation of the high solids content of more than 30%, this formulation is easy to crystallisation solidification northerly winter, adds inconvenience to practical application.
4, because formula is generally acidic aqueous solution medium, in this medium, the polymeric phosphate (as Sodium hexametaphosphate 99) with low cost height synergistic is very easy to hydrolysis, and therefore this pharmaceutical formulation preservation period is generally no more than one month.In order to address this problem, usual Sodium hexametaphosphate 99 will measure separately and deposit, and adds the complicacy of operation.
Therefore, the solid corrosion and scale inhibitor of exploitation high density, becomes the active demand of oil field reinjection water water treatment.
CN101139718 discloses multiple-effect solid inhibiting anti-scale rod, by polymer shaping agent and binding agent by corrosion-mitigation scale-inhibition composition and moisture-curing, makes certain solid shape, for down-hole slow releasing, reaches the object of well cover corrosion-mitigation scale-inhibition.
CN101613599 discloses the phosphorus system compound system based on organic phosphonate and inorganic phosphate, and corrosion-mitigation scale-inhibition composition is made tablet by starch by this system, adds and needs slowly to dissolve in system to be processed.
CN101805597 discloses with 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), Sodium hexametaphosphate 99 are main corrosion-mitigation scale-inhibition composition, with polyoxyethylene glycol, Si Ban and stearic acid for additive, solid corrosion and scale inhibitor is obtained by extrusion molding, for oil well, reach the object of a dosing, slow releasing.
Although more than invention changes the formulation of existing corrosion inhibiting and descaling agent, but it is main still for the purpose of slowly-releasing, be applicable to the down-the hole treatment of remote oil well, advantage to greatly reduce dispensing workload, Scale inhibitors stability increases, but also there is following deficiency: should not regulate by the concentration in its aqueous solution of change of release rate and discharge, (2) because dissolution rate is slow, be not suitable for the solid medicine machine of big yield process.(3) with the addition of too much ancillary component, reduce the effective content of corrosion-mitigation scale-inhibition composition, add cost.
Summary of the invention
The object of this invention is to provide a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent, another object of the present invention is to provide the preparation method of this solid corrosion and scale inhibitor.
Technical scheme of the present invention is, a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent, is by the raw material of following weight percent, uses the product that following preparation method makes:
The preparation method of oil field reinjection water special solid corrosion inhibiting and descaling agent comprises the following steps:
(1). in kneader, add 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid be called for short HEDP, maleic acid-acrylic acid copolymer, alkyl imidazoline inhibiter, stirring at normal temperature is even,
(2). add mineral alkali, neutralization, to pH=6 ~ 8, after adding, mediates stirring 25 ~ 30 minutes under normal temperature in batches,
(3). be heated to 100 ~ 130 DEG C, mediate stirring and be dried to moisture content 20% ~ 30%,
(4). by screw extrusion press by material moulding, dry,
(5). zinc sulfate, Sodium hexametaphosphate 99 are added, is uniformly mixed 25 ~ 30 minutes and gets product.
It is commercially available prod that described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is called for short HEDP, liquid, effective constituent in HEDP, content 40 ~ 60%;
It is commercially available prod that described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is called for short HEDP, liquid, effective constituent in HEDP, content >=50.0%;
Described maleic acid-acrylic acid copolymer is commercially available prod, brown yellow transparent liquid, active constituent content 40 ~ 60%;
Described maleic acid-acrylic acid copolymer is commercially available prod, brown yellow transparent liquid, active constituent content >=45.0%;
Described alkyl imidazoline inhibiter is commercially available prod, weak yellow liquid, the mass content 30 ~ 60% of actives, described actives is straight chained alkyl tetrahydroglyoxaline or branched-chain alkyl tetrahydroglyoxaline or cycloalkyl tetrahydroglyoxaline, or the mixture of wherein one or two or more, described straight chained alkyl tetrahydroglyoxaline comprises the mixture of lauryl imidazoline, tetradecyl tetrahydroglyoxaline, hexadecyl tetrahydroglyoxaline, octadecylimidazoline wherein one or two or more
Described alkyl imidazoline inhibiter is commercially available prod, weak yellow liquid, mass content >=50.0% of actives, described actives is straight chained alkyl tetrahydroglyoxaline or branched-chain alkyl tetrahydroglyoxaline or cycloalkyl tetrahydroglyoxaline, or the mixture of wherein one or two or more, described straight chained alkyl tetrahydroglyoxaline comprises the mixture of lauryl imidazoline, tetradecyl tetrahydroglyoxaline, hexadecyl tetrahydroglyoxaline, octadecylimidazoline wherein one or two or more
Described zinc sulfate is Industrial products, and be Zincomed, Zinc Sulphate Monohydrate, Zinc Sulphate Heptahydrate, the wherein mixture of one or two or more, its consumption is according to the mass metrology being converted to Zincomed;
Described mineral alkali is the mixture of sodium hydroxide, aqueous sodium hydroxide solution, sodium carbonate, sodium bicarbonate wherein one or two or more, and its consumption is converted to the mass metrology of sodium hydroxide according to mole numbers such as sodium hydroxide.
Described preparation method, step is heated to 100 ~ 130 DEG C described in (3), mediates stirring and is dried to moisture content 20% ~ 30%, according to forcing machine needs, can omit this step.
Oil field reinjection water special solid corrosion inhibiting and descaling agent of the present invention can be packed with the woven bag of general inner lining plastic bag, is convenient to accumulating and management, long quality-guarantee period, easy to use, can be directly used in the solid medicine machine in current oil field.Pharmaceutical formulation of the present invention is nontoxic, harmless, neutral, corrosion inhibition rate >=95%, scale inhibition performance >=95%, and consumption is 10 ~ 20mg/l.
The each component of corrosion inhibiting and descaling agent of the present invention has good compatibleness, complementarity and synergetic property: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid has good scale-inhibiting properties, for the representative of domestic the most frequently used organophosphorus system corrosion inhibiting and descaling agent, also have certain corrosion inhibition concurrently simultaneously, and heat resistance is good, be particularly suitable for oil field high temperature reinjected water; Horse propylene copolymer, has good lattice dissemination to the generation of dirt and growth; Alkyl imidazoline belongs to novel, efficient, high temperature resistant corrosion inhibitor, and the corrosion inhibition rate of its ppm level can reach about 97%, and better through rational composite corrosion mitigating effect, consumption is less; Zinc salt is as a kind of inhibition auxiliary agent, and it and HEDP can improve the corrosion inhibiting ability of HEDP after working in coordination with and arranging in pairs or groups.Sodium hexametaphosphate 99 is limit Scale inhibitors, composite with HEDP, has splendid synergistic and limit effect, also has good assisting simultaneously to inhibition.
Compared with prior art, beneficial effect of the present invention is as follows:
1, anticorrosion-antiscaling effect is good.Oil field reinjection water special corrosion and scale inhibitor of the present invention inhibition, scale inhibition effect are good, and consumption is few and preparation technology simple, and corrosion inhibition rate >=95%, scale inhibition performance >97%, consumption is 30 ~ 40mg/l.Better prevent and slow down corrosion and the fouling of oil field flood pattern, extend the work-ing life of e-quipment and pipe, ensure that effectively carrying out of crude production, improve oil recovery.
2, preparation is solid, and the active constituent content of product is high, is convenient to packaging accumulating and use.
3, the existing sewage works in oil field and on-site solids chemicals dosing plant is applicable to.
4, decrease the recovery transportation cost of packaging facilities, meet the requirement of environmental protection.
5, preparation moisture reduces, and stability improves, and substantially prolongs the validity period of preparation.
Embodiment
The specific embodiment of the present invention is:
Embodiment 1, a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent, is by the raw material of following weight percent, uses the product that following preparation method makes:
The preparation method of oil field reinjection water special solid corrosion inhibiting and descaling agent comprises the following steps:
(1). in kneader, add 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid be called for short HEDP, maleic acid-acrylic acid copolymer, alkyl imidazoline inhibiter, stirring at normal temperature is even,
(2). add mineral alkali, neutralization, to pH=6 ~ 8, after adding, mediates stirring 25 ~ 30 minutes under normal temperature in batches,
(3). be heated to 100 ~ 130 DEG C, mediate stirring and be dried to moisture content 20% ~ 30%,
(4). by screw extrusion press by material moulding, oven dry,
(5). zinc sulfate, Sodium hexametaphosphate 99 are added, is uniformly mixed 25 ~ 30 minutes and gets product.
It is commercially available prod that described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is called for short HEDP, liquid, effective constituent in HEDP, content 40 ~ 60%, wherein preferably >=50.0%;
Described maleic acid-acrylic acid copolymer is commercially available prod, brown yellow transparent liquid, active constituent content 40 ~ 60%, wherein preferably >=45.0%;
Described alkyl imidazoline inhibiter is commercially available prod, weak yellow liquid, the mass content 30 ~ 60% of actives, wherein preferably >=50.0%, described actives is straight chained alkyl tetrahydroglyoxaline or branched-chain alkyl tetrahydroglyoxaline or cycloalkyl tetrahydroglyoxaline, or the mixture of wherein one or two or more, described straight chained alkyl tetrahydroglyoxaline comprises the mixture of lauryl imidazoline, tetradecyl tetrahydroglyoxaline, hexadecyl tetrahydroglyoxaline, octadecylimidazoline wherein one or two or more
Described zinc sulfate is Industrial products, and be Zincomed, Zinc Sulphate Monohydrate, Zinc Sulphate Heptahydrate, the wherein mixture of one or two or more, its consumption is according to the mass metrology being converted to Zincomed;
Described mineral alkali is the mixture of sodium hydroxide, aqueous sodium hydroxide solution, sodium carbonate, sodium bicarbonate wherein one or two or more, and its consumption is converted to the mass metrology of sodium hydroxide according to mole numbers such as sodium hydroxide.
Embodiment 2, a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent, is by the raw material of following weight percent, uses the product that following preparation method makes:
The preparation method of oil field reinjection water special solid corrosion inhibiting and descaling agent comprises the following steps:
(1). in kneader, add 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid be called for short HEDP, maleic acid-acrylic acid copolymer, alkyl imidazoline inhibiter, stirring at normal temperature is even,
(2). add mineral alkali, neutralization, to pH=6 ~ 8, after adding, mediates stirring 25 ~ 30 minutes under normal temperature in batches,
(3). by screw extrusion press by material moulding, dry,
(4). zinc sulfate, Sodium hexametaphosphate 99 are added, is uniformly mixed 25 ~ 30 minutes and gets product.
The specification requirement of the raw material that the present embodiment uses is with embodiment 1.
Claims (3)
1. an oil field reinjection water special solid corrosion inhibiting and descaling agent, is characterized in that: be by the raw material of following weight percent, use the product that following preparation method makes:
The preparation method of oil field reinjection water special solid corrosion inhibiting and descaling agent comprises the following steps:
(1). in kneader, add 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid be called for short HEDP, maleic acid-acrylic acid copolymer, alkyl imidazoline inhibiter, stirring at normal temperature is even,
(2). add mineral alkali, neutralization, to pH=6 ~ 8, after adding, mediates stirring 25 ~ 30 minutes under normal temperature in batches,
(3). be heated to 100 ~ 130 DEG C, mediate stirring and be dried to moisture content 20% ~ 30%,
(4). by screw extrusion press by material moulding, oven dry,
(5). zinc sulfate, Sodium hexametaphosphate 99 are added, is uniformly mixed 25 ~ 30 minutes and gets product;
Step is heated to 100 ~ 130 DEG C described in (3), mediates stirring and is dried to moisture content 20% ~ 30%, or according to forcing machine needs, omit this step.
2. a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent according to claim 1, is characterized in that: it is commercially available prod that described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is called for short HEDP, liquid, effective constituent in HEDP, content 40 ~ 60%;
Described maleic acid-acrylic acid copolymer is commercially available prod, brown yellow transparent liquid, active constituent content 40 ~ 60%;
Described alkyl imidazoline inhibiter is commercially available prod, weak yellow liquid, the mass content 30 ~ 60% of actives, described actives is straight chained alkyl tetrahydroglyoxaline or branched-chain alkyl tetrahydroglyoxaline or cycloalkyl tetrahydroglyoxaline, or the mixture of wherein one or two or more, described straight chained alkyl tetrahydroglyoxaline comprises the mixture of lauryl imidazoline, tetradecyl tetrahydroglyoxaline, hexadecyl tetrahydroglyoxaline, octadecylimidazoline wherein one or two or more;
Described zinc sulfate is Industrial products, and be Zincomed, Zinc Sulphate Monohydrate, Zinc Sulphate Heptahydrate, the wherein mixture of one or two or more, its consumption is according to the mass metrology being converted to Zincomed;
Described mineral alkali is the mixture of sodium hydroxide, aqueous sodium hydroxide solution, sodium carbonate, sodium bicarbonate wherein one or two or more, and its consumption is converted to the mass metrology of sodium hydroxide according to mole numbers such as sodium hydroxide.
3. a kind of oil field reinjection water special solid corrosion inhibiting and descaling agent according to claim 2, is characterized in that: it is commercially available prod that described 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is called for short HEDP, liquid, effective constituent in HEDP, content >=50.0%;
Described maleic acid-acrylic acid copolymer is commercially available prod, brown yellow transparent liquid, active constituent content >=45%;
Described alkyl imidazoline inhibiter is commercially available prod, weak yellow liquid, mass content >=50.0% of actives, described actives is straight chained alkyl tetrahydroglyoxaline or branched-chain alkyl tetrahydroglyoxaline or cycloalkyl tetrahydroglyoxaline, or the mixture of wherein one or two or more, described straight chained alkyl tetrahydroglyoxaline comprises the mixture of lauryl imidazoline, tetradecyl tetrahydroglyoxaline, hexadecyl tetrahydroglyoxaline, octadecylimidazoline wherein one or two or more;
Described zinc sulfate is Industrial products, and be Zincomed, Zinc Sulphate Monohydrate, Zinc Sulphate Heptahydrate, the wherein mixture of one or two or more, its consumption is according to the mass metrology being converted to Zincomed;
Described mineral alkali is the mixture of sodium hydroxide, aqueous sodium hydroxide solution, sodium carbonate, sodium bicarbonate wherein one or two or more, and its consumption is converted to the mass metrology of sodium hydroxide according to mole numbers such as sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001812.8A CN103708629B (en) | 2014-01-02 | 2014-01-02 | Oil field reinjection water special solid corrosion inhibiting and descaling agent |
Applications Claiming Priority (1)
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| CN104230016A (en) * | 2014-09-07 | 2014-12-24 | 无棣华信石油技术服务有限公司 | Oilfield reinjection water scale inhibitor and preparation method thereof |
| CN104445648A (en) * | 2014-11-14 | 2015-03-25 | 天津大港油田滨港集团博弘石油化工有限公司 | Corrosion and scale inhibitor for oilfield water injection treatment |
| CN104479658A (en) * | 2014-11-25 | 2015-04-01 | 苏州佑君环境科技有限公司 | Solid scale prevention and removal agent and preparation method thereof |
| CN104609577A (en) * | 2014-12-25 | 2015-05-13 | 宁波市川宁环保科技有限公司 | Efficient composite bactericidal scale inhibitor and preparation method thereof |
| CN105936552A (en) * | 2016-06-20 | 2016-09-14 | 延长油田股份有限公司 | Solid corrosion and scale inhibitor for oil field and preparation method thereof |
| CN112010435A (en) * | 2019-05-30 | 2020-12-01 | 池州万维化工有限公司 | Processing technology of all-organic corrosion and scale inhibition industrial water treatment agent |
| CN111073618A (en) * | 2020-01-03 | 2020-04-28 | 陕西日新石油化工有限公司 | Solid corrosion inhibitor capable of being released uniformly and preparation method thereof |
| CN115614002B (en) * | 2021-07-13 | 2024-10-01 | 中国石油天然气股份有限公司 | Self-controlled slow-release device |
| CN114486785A (en) * | 2022-02-28 | 2022-05-13 | 陕西日新石油化工有限公司 | Method for measuring release rate of solid corrosion-inhibiting, scale-inhibiting and desulfurizing agent for oil well |
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| US9221701B2 (en) * | 2010-11-19 | 2015-12-29 | Chemtreat, Inc. | Methods for reducing scale formation on and removing deposits from heat transfer surfaces |
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| CN101125715A (en) * | 2007-08-16 | 2008-02-20 | 樊桂修 | Composite corrosion-retarding antisludging agent for treating high-concentration multiple circulating water |
| CN101560023A (en) * | 2009-05-26 | 2009-10-21 | 兰州华星高科技开发有限公司 | Efficient low-phosphorus corrosion and scale inhibitor |
| CN101613599A (en) * | 2009-06-25 | 2009-12-30 | 天津开广工业水处理有限公司 | A kind of solid corrosion and scale inhibitor and preparation method thereof |
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Address after: 250400, Shandong County, Ji'nan province Pingyin County Industrial Park East Patentee after: SHANDONG HUAYOU WATER PROCESSING TECHNOLOGY CO.,LTD. Address before: 250400, Shandong County, Ji'nan province Pingyin County Industrial Park East Patentee before: Shandong Huayou Chemical Co.,Ltd. |
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Denomination of invention: Special solid corrosion and scale inhibitor for oilfield reinjection water Effective date of registration: 20170704 Granted publication date: 20160113 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan Pingyin branch Pledgor: SHANDONG HUAYOU WATER PROCESSING TECHNOLOGY CO.,LTD. Registration number: 2017370000082 |
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