CN202214323U - Slow-release microcapsule for scale prevention, wax prevention or viscosity reduction of oil well - Google Patents
Slow-release microcapsule for scale prevention, wax prevention or viscosity reduction of oil well Download PDFInfo
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- CN202214323U CN202214323U CN2011201728198U CN201120172819U CN202214323U CN 202214323 U CN202214323 U CN 202214323U CN 2011201728198 U CN2011201728198 U CN 2011201728198U CN 201120172819 U CN201120172819 U CN 201120172819U CN 202214323 U CN202214323 U CN 202214323U
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- 239000003094 microcapsule Substances 0.000 title claims abstract description 49
- 239000003129 oil well Substances 0.000 title claims abstract description 28
- 230000002265 prevention Effects 0.000 title abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 14
- 239000003814 drug Substances 0.000 abstract description 41
- -1 can play inhibition Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 239000010779 crude oil Substances 0.000 abstract description 7
- 230000005764 inhibitory process Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 2
- 238000005536 corrosion prevention Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000001993 wax Substances 0.000 description 25
- 239000010408 film Substances 0.000 description 23
- 239000003795 chemical substances by application Substances 0.000 description 20
- 239000000203 mixture Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 10
- 229910052708 sodium Inorganic materials 0.000 description 9
- 239000011734 sodium Substances 0.000 description 9
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000002455 scale inhibitor Substances 0.000 description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 description 8
- 235000011152 sodium sulphate Nutrition 0.000 description 8
- 235000019832 sodium triphosphate Nutrition 0.000 description 8
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 8
- 239000005995 Aluminium silicate Substances 0.000 description 7
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 7
- 235000012211 aluminium silicate Nutrition 0.000 description 7
- 229910000323 aluminium silicate Inorganic materials 0.000 description 7
- 235000019353 potassium silicate Nutrition 0.000 description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229940077388 benzenesulfonate Drugs 0.000 description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 235000017550 sodium carbonate Nutrition 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 229920001897 terpolymer Polymers 0.000 description 5
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 description 4
- SWGJRPGVODDXKM-LNKPDPKZSA-N C(C)(=O)OC=C.C(\C=C/C(=O)O)(=O)OC(=O)C=C Chemical compound C(C)(=O)OC=C.C(\C=C/C(=O)O)(=O)OC(=O)C=C SWGJRPGVODDXKM-LNKPDPKZSA-N 0.000 description 4
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 101710194948 Protein phosphatase PhpP Proteins 0.000 description 4
- 239000013543 active substance Substances 0.000 description 4
- 229910021538 borax Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 4
- 235000005074 zinc chloride Nutrition 0.000 description 4
- 239000011592 zinc chloride Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 229910021331 inorganic silicon compound Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 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 description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 3
- 229960001763 zinc sulfate Drugs 0.000 description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 150000003009 phosphonic acids Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BPSYZMLXRKCSJY-UHFFFAOYSA-N 1,3,2-dioxaphosphepan-2-ium 2-oxide Chemical compound O=[P+]1OCCCCO1 BPSYZMLXRKCSJY-UHFFFAOYSA-N 0.000 description 1
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241000153282 Theope Species 0.000 description 1
- QILXPCHTWXAUHE-UHFFFAOYSA-N [Na].NCCN Chemical compound [Na].NCCN QILXPCHTWXAUHE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- STNSYZSNIYTNMI-UHFFFAOYSA-N azane;[2-[bis(phosphonomethyl)amino]ethyl-(phosphonomethyl)amino]methylphosphonic acid Chemical compound N.OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O STNSYZSNIYTNMI-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 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 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 229920006029 tetra-polymer Polymers 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Abstract
The utility model relates to a petrochemical technical field especially relates to a slow-release microcapsule that is used for oil well scale control, wax control or viscosity reduction. The solid slow-release microcapsule is used for scale prevention and corrosion prevention of pipelines and pump bodies in the crude oil production process, and is used for wax prevention or viscosity reduction of pipelines in the crude oil production process. It is characterized by that in the macromolecular composite membrane with surface meshes a filler formed from inorganic skeleton and medicinal component is set. The utility model discloses can realize the medicament slow release, reach the long-term effectual purpose of medicament, can play inhibition, dispersion again. The utility model discloses a suitable volume, density both can prevent that slow-release microcapsule from being taken away by the extraction liquid, can follow the sleeve pipe again and add at any time, simple process, and maneuverability is strong. No volatile matter and harmful component harmful to human health, all the components can be dissolved slowly basically, the labor intensity of workers is reduced, and stable operation of the balance of 30-90 is ensured at least by adding medicine once.
Description
Technical field
The utility model relates to the petrochemical technology field, relates in particular to a kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction.It is to be used for crude production process pipeline, the antiscale of the pump housing, protection against corrosion, and the solid slow-release microcapsule that are used for crude production process pipeline wax control or viscosity reduction.
Background technology
Along with China's oilfield exploitation progressively gets into the middle and later periods, crude oil water containing increases year by year, and the water of this high salinity is quite serious to the corrosion and the tube wall of oily inlet pipe wall, the pump housing fouling of pumping.
Scale inhibitors that uses at present and inhibiter are liquid mostly; Add continuously inconveniently, and preventing freeze in winter also is very big problem, and the big polymorph of solid antiscaling block is big; Need the operation well workover to add; Complex process need be stopped well operations, and some powdery type is not had long-term scale inhibition, corrosion inhibition along with crude oil takes away in a large number; More emerging fritter scale inhibitors, needing the HTHP moulding mostly is not easy efflorescence, being exactly molten water-based can be not up to standard, does not reach the requirement of long-term antiscale, inhibition.
In the waxy crude oil recovery process, because the wax deposition of oil well, viscosity of crude is big in addition, causes the up and centrifugal current increase of oil pumper, and the oil well power consumption increases serious caused rod broken.The general way that solves is a chemical recovery, and heat is washed, and adds liquid viscosity reduction, wax control medicament, mechanical paraffin removal etc., and some well will be driven hot line for a long time could ordinary production.The consequent electricity charge and measure expense are considerable, and the Oil extraction cost is too high.The medicine machine input is bigger though liquid dosing pattern is both economical, the later maintenance trouble, and also hand labor intensity is big.
Summary of the invention
The utility model provides a kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction to the problem that exists in the above-mentioned prior art.It is simple that purpose provides a kind of technology, do not have the volatile matter and the objectionable constituent that are detrimental to health, and the slow-release microcapsule of slowly dissolved antiscale, wax control or viscosity reduction.
The utility model solves the technical scheme that its technical problem adopted:
A kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction, it is in having the polymer compound film of surperficial mesh, to be provided with the weighting material that is made up of inorganic skeleton and medicament.
The composition of described inorganic skeleton can be made up of a kind of in zinc chloride, zinc sulfate, water glass, yellow soda ash, Sodium orthomolybdate, tripoly phosphate sodium STPP, the Sodium hexametaphosphate 99 or four kinds and mixes.
Described polymer compound film is that inorganic silicon compounds such as tensio-active agents such as OPE emulsion, high-pressure polyethylene, polyoxyethylenated alcohol sodium sulfate AES, OP-10, EVA resin, borax and pure aluminium silicate mix.
Described medicament diameter is 5 ~ 10mm, the solid circles cylindricality particle of height≤15mm, and its density is greater than 1.0g/cm3.
Described medicament is one or more mixtures in inhibiter, Scale inhibitors, dispersive wax-proofing agent and the viscosity-depression agent, and its formation is following three kinds by ratio of weight and the number of copies:
The beneficial effect of the utility model is:
The described slow-release microcapsule of the utility model adopts inner inorganic skeleton to support and the common rock steady structure that constitutes of outer polymer compound film wrap membrane structure, can realize that medicament slowly discharges, and has reached the permanently effective purpose of medicament.
The utility model adopts normal temperature with medicament component and inorganic skeleton thorough mixing, and the high pressure compacting forms diameter 5 ~ 10mm, the solid circles cylindricality particle of height≤15mm then.Control this particle water ratio between 5%-10%; Be beneficial to keep granule strength; Then to this work in-process particle mixture with OPE emulsion, EVA resin, tensio-active agent and inorganic silicon compound on vibratory screening apparatus; Confirm its ratio according to oil quality characteristic, evenly spray after the ultra micro emulsification, obtain finished product the utility model slow-release microcapsule after the cooling at this work in-process particle surface.
This slow-release microcapsule can be added by oil well casing because volume is little, because the adding of inorganic components makes density＞1.0g/cm3, so can sink to the shaft bottom fully; Slow-release microcapsule inside is supported with inorganic skeleton, both can reach to keep the capsule configuration, does not hinder the release of medicine component again, and can play corrosion inhibition.Simultaneously can increase density, be beneficial to medicament and arrive the shaft bottom smoothly; Because outer compound polymer wrap, under Electronic Speculum, observing this integument is reticulated structure in addition, and nearly 1000 orders of mesh can make water molecules and medicine component freely pass through between 2000 orders fully, and medicine component is released.Simultaneously, again can sustained release speed, prevent that inner skeleton is too fast loose.
The inner inorganic skeleton propping agent of the utility model can use and can satisfy intensity that the utility model requires, can play most of inorganic materials of inhibition, dissemination again.Outside overlay film is not got rid of other macromolecular materials that use can satisfy the perviousness of the utility model requirement, aperture and dissolution rate as outer composite high-molecular mould material.
The modern design of the utility model just is that suitable volume, density both can prevent that slow-release microcapsule from being taken away by extraction liquid, can add from sleeve pipe at any time again, and technology is simple, and is workable.Do not have the volatile matter and the objectionable constituent that are detrimental to health, each component can both slowly be dissolved basically.Simultaneously, be added with support frame, and at skin parcel one deck polymer laminated film, continuing for a long time to play a role and played vital role to medicament in slow-release microcapsule inside.Reduced working strength of workers, a dosing guarantees steadily to move in 30-90 days at least.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: surperficial mesh 1, polymer compound film 2, inorganic skeleton 3, medicament 4.
Below in conjunction with the specific embodiment and the accompanying drawing of the utility model, the utility model is described in detail.
Embodiment
Embodiment 1:
As shown in Figure 1, Fig. 1 is the structural representation of the utility model.The utility model is a kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction.
This slow-release microcapsule inside is supported with inorganic skeleton 3, and the density that makes medicament 4 is greater than 1.0g/cm3.Both can reach maintenance capsule configuration, not hinder the release of medicine component again.These inorganic skeleton 3 propping agents can use the intensity that can satisfy the utility model requirement, can play most of inorganic materials of wax control, dispersion, corrosion inhibition.The inorganic skeleton composition can be made up of zinc chloride, water glass, yellow soda ash, Sodium orthomolybdate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 etc.
The utility model volume and shape are to be diameter 5 ~ 10mm, the solid circles cylindricality particle of height≤15mm, and the adding of inorganic skeleton 3 can keep shape, makes medicament density greater than 1.0g/cm3.Can reach the permanently effective purpose of the stable performance of medicament, can not interruptedly directly send to the shaft bottom with waterpower again from oil well casing.
The mixture of the outer field compound polymer compound film 2 wrap film selective oxidation polythene wax emulsions of the utility model, EVA resin, tensio-active agent and inorganic silicon compound both can form the reticulated structure surface.The adding of tensio-active agent can prevent that crude oil from its surperficial adhering to, influencing separating out of medicine component.Another effect of inorganic silicon raw material is to play the adjusting control agent effect, and its adding is in order to dissolve later stage controlled oxidation polythene wax emulsion, the time of EVA resin dispersion in oil at slow-release microcapsule.Outside overlay film polymer compound film 2 is not got rid of other macromolecular materials that use can satisfy the perviousness of the utility model requirement, aperture and dissolution rate as outer composite high-molecular mould material.
The medicament 4 of this slow-release microcapsule can be one or more of inhibiter, Scale inhibitors, dispersive wax-proofing agent, viscosity-depression agent, combination in proportion.Following is massfraction:
Above-mentioned medicament 4 inhibiter, Scale inhibitors, dispersive wax-proofing agent, viscosity-depression agent etc. are mixture.According to well water, crude oil property, extraction liquid dirt type, factors such as downhole temperature, down-hole pressure are confirmed concrete prescription.
Being constructed as follows of the medicament 4 of the utility model:
Inhibiter: can by polyamines polymkeric substance, heterocyclic amine, imidazolines, 12 and one or more of tetradecyl bi-quaternary ammonium salt form;
[0025]Scale inhibitors: select organophosphate, the poly carboxylic acid dirt dispersion agent.Comprise most of organic phosphates anti-incrustation corrosion inhibitors, sequestrant, as: ATMP ATMP, sodium ethylenediamine tetramethylenephosphonate EDTMPS, hydroxy ethylene diphosphonic acid HEDP, diethylenetriamine pentamethylene phosphonic acids DTPMP etc.And polycarboxylic acid, as: HPMA HPMA, phosphono-carboxylic acids copolymer p OCA.Vinylformic acid and propenoate, sulphonate, phosphonic acids, binary, ternary, the tetrapolymer of 2-acrylamido-2-methyl propane sulfonic acid AMPS;
Dispersive wax-proofing agent: comprise OP, NP system class, sodium alkyl benzene sulfonate, fatty alcohol-ether sodium sulfate, fatty acid diethanolamine, AES, alkylol amide 6501, AE09, fluorocarbon surfactant F-1 etc.;
Viscosity-depression agent: comprise OP, NP system class, sodium alkyl benzene sulfonate, fatty alcohol-ether sodium sulfate, fatty acid diethanolamine, AES, alkylol amide 6501, AE09, fluorocarbon surfactant F-1, vinylformic acid-maleic anhydride-styrene copolymers, maleic anhydride-vinyl acetate copolymer etc.
The production technique of the utility model is following:
According to block oil well produced liquid situation, confirm the slow-release microcapsule purposes, be to be used for oil well antiscale, oil well paraffin prevention, still not only antiscale but also wax control.To confirm reagent combination, again according to corresponding inorganic skeleton of formulation selection and polymer wrap thin-film material.
Elder generation is with medicament 4 and inorganic skeleton 3 thorough mixing, and then the forming under the pressure of 10-20MPa, and oven dry is to moisture below 10%.With after the polymer wrap thin-film material high temperature ultra micro emulsification that mixes, evenly spray obtains the finished product slow-release microcapsule at this work in-process particle surface after the cooling on vibratory screening apparatus then.
Following example is intended to further describe the utility model, only represents an example of the utility model, does not comprise the right of whole requirements of the utility model.Before the principle that does not change the utility model claim, put, anyone will fall within the claim scope of the utility model in change or change by any way.
A kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction is in the polymer compound film that has surperficial mesh 12, to be provided with the intersection mixed structure weighting material that is made up of inorganic skeleton 3 and medicament 4.
The utility model volume and shape are to be diameter 5mm, the solid circles cylindricality particle of high 15mm, and the adding of inorganic skeleton 3 can keep shape, and the density that makes medicament 4 is 1.3g/cm3.
A kind of slow-release microcapsule that is used for the slow-release microcapsule of oil well antiscale, wax control or viscosity reduction as the corrosion-mitigation scale-inhibition purposes.
Described inorganic skeleton 3 is that the inorganic skeleton propping agent is to be made up of following raw materials by weight portion ratio: zinc chloride: water glass: tripoly phosphate sodium STPP=4:4:2;
The outer compound polymer compound film 2 of described slow-release microcapsule is that the mixture by OPE emulsion, EVA resin, OP-10 and pure aluminium silicate constitutes, and its ratio of weight and number is: the OPE emulsion: EVA resin: OP-10: the mixture=2.5:2:0.5:5 of pure aluminium silicate;
Described medicament 4 is to be mixed by following raw materials by weight portion ratio: hydroxy ethylene diphosphonic acid HEDP: HPMA HPMA: vinylformic acid-maleic anhydride-vinyl acetate terpolymers: tetrahydroglyoxaline=3:3:3:1.
A kind of production technique that is used for the slow-release microcapsule of oil well antiscale, wax control or viscosity reduction is:
Get earlier 4 kilograms of zinc chloride, 4 kilograms of water glass, tripoly phosphate sodium STPP according to the above ratio and be hybridly prepared into inorganic skeleton 3 for 2 kilograms;
Get according to the above ratio: 2.5 kilograms of OPE emulsions, 2 kilograms of EVA resins, 0.5 kilogram of OP-10 and pure aluminium silicate mix the outer compound polymer compound film 2 of slow-release microcapsule for 5 kilograms again;
Get according to the above ratio at last: 3 kilograms of hydroxy ethylene diphosphonic acid HEDP, 3 kilograms of HPMA HPMA, 3 kilograms of vinylformic acid-maleic anhydrides-vinyl acetate terpolymers, 1 kilogram of mixed preparing of tetrahydroglyoxaline forms medicament 4.
With medicament for preparing 4 and inorganic skeleton 3 thorough mixing, then at the forming under the pressure of 10MPa, dry to water ratio between 5%-10%; After the polymer wrap thin-film material that mixes was polymer compound film 2 high temperature ultra micro emulsifications, evenly spray got product after the cooling at this work in-process particle surface on vibratory screening apparatus.
A kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction is in the polymer compound film that has surperficial mesh 12, to be provided with the intersection mixed structure weighting material that is made up of inorganic skeleton 3 and medicament 4.
The utility model volume and shape are to be diameter 7mm, the solid circles cylindricality particle of high 13mm, and the adding of inorganic skeleton 3 can keep shape, and the density that makes medicament 4 is 1.3g/cm3.
A kind of slow-release microcapsule that is used for the slow-release microcapsule of oil well antiscale, wax control or viscosity reduction as the oil well paraffin prevention purposes.
These slowly-releasing wax control microcapsule inorganic skeleton 3 propping agents are to be made up of following raw materials by weight portion ratio: zinc sulfate: water glass: yellow soda ash=2:3:5;
The outer compound polymer of slow-release microcapsule wrap film is that polymer compound film 2 is to be made up of following raw materials by weight portion ratio: OPE emulsion: low pressure polyethylene: polyoxyethylenated alcohol sodium sulfate AES and pure aluminium silicate: the mixture=2:1.5:0.5:4:2 of borax;
The medicament 4 of slow-release microcapsule is to be made up of following raw materials by weight portion ratio: sodium alkyl benzene sulfonate: polyoxyethylenated alcohol sodium sulfate AES: fluorocarbon surfactant F-1: vinylformic acid-maleic anhydride-vinyl acetate terpolymers=6:1.5:0.01:2.5;
Its preparation method is with embodiment 1.
A kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction is in the polymer compound film that has surperficial mesh 12, to be provided with the intersection mixed structure weighting material that is made up of inorganic skeleton 3 and medicament 4.
The utility model volume and shape are to be diameter 8mm, the solid circles cylindricality particle of high 12mm, and the adding of inorganic skeleton 3 can keep shape, and the density that makes medicament 4 is 1.4g/cm3.
A kind of slow-release microcapsule that is used for the slow-release microcapsule of oil well antiscale, wax control or viscosity reduction as oil well paraffin prevention, antiscale purposes.
This slowly-releasing wax control, antiscale microcapsule inorganic skeleton 3 propping agents are to be made up of following raw materials by weight portion ratio: zinc sulfate: water glass: yellow soda ash=2:3:5;
The outer compound polymer of slow-release microcapsule wrap film is that polymer compound film 2 is to be made up of than mixing following raw materials by weight portion: OPE emulsion: low pressure polyethylene: polyoxyethylenated alcohol sodium sulfate AES and pure aluminium silicate: the mixture=2:1.5:0.5:4:2 of borax;
The medicament 4 of slow-release microcapsule is by being to be made up of following raw materials by weight portion ratio: sodium alkyl benzene sulfonate: polyoxyethylenated alcohol sodium sulfate AES: fluorocarbon surfactant F-1: vinylformic acid-maleic anhydride-vinyl acetate terpolymers=6:1.5:0.01:2.5.
Its preparation method is with embodiment 1.
Embodiment 4
A kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction is in the polymer compound film that has surperficial mesh 12, to be provided with the intersection mixed structure weighting material that is made up of inorganic skeleton 3 and medicament 4.
The utility model volume and shape are to be diameter 9mm, the solid circles cylindricality particle of high 10mm, and the adding of inorganic skeleton 3 can keep shape, and the density that makes the medicament component is greater than 1.3g/cm3.
A kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction is as oil well viscosity reduction, the dual purpose slow-release microcapsule of antiscale.
This slowly-releasing wax control, 3 supports of antiscale microcapsule inorganic skeleton are to be made up of following raw materials by weight portion ratio: agent sulphur zinc: water glass: yellow soda ash: Sodium hexametaphosphate 99=2:3:2:3;
The outer compound polymer of slow-release microcapsule wrap film is that polymer compound film 2 is to be made up of than mixing following raw materials by weight portion: OPE emulsion: high-pressure polyethylene: EVA resin: polyoxyethylenated alcohol sodium sulfate AES: pure aluminium silicate: borax=1:1.5:2:0.5:3:2;
The medicament 4 of slow-release microcapsule is to be made up of following raw materials by weight portion ratio: sodium alkyl benzene sulfonate: fluorocarbon surfactant F-1: hydroxy ethylene diphosphonic acid HEDP: HPMA HPMA: vinylformic acid-maleic anhydride-vinyl acetate terpolymers: bi-quaternary ammonium salt=3:0.01:2:2:2:1.
Its preparation method is with embodiment 1.
Embodiment 5
The utility model volume and shape can also be diameter 10mm; High 9mm or height are the solid circles cylindricality particle of any numerical value among 8mm, 7mm, 6mm, 5mm, 4mm, 3mm, 2mm, the 1mm; The adding of inorganic skeleton 3 can keep shape, and the density that makes medicament 4 is that any numerical value among 1.5g/cm3 or 1.6g/cm3 or 1.7g/cm3 or 1.8g/cm3 or 1.9g/cm3 or 2g/cm3 or 2.5g/cm3 or 3g/cm3 or the 4g/cm3 all can.
Claims (2)
1. slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction, it is characterized in that: it is to be made up of the polymer compound film that has surperficial mesh (1) (2).
2. a kind of slow-release microcapsule that is used for oil well antiscale, wax control or viscosity reduction according to claim 1 is characterized in that: described slow-release microcapsule is that diameter is 5～10mm, the solid circles cylindricality particle of height≤15mm, and its density is greater than 1.0g/cm3.
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| CN2011201728198U CN202214323U (en) | 2011-05-27 | 2011-05-27 | Slow-release microcapsule for scale prevention, wax prevention or viscosity reduction of oil well |
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| CN2011201728198U CN202214323U (en) | 2011-05-27 | 2011-05-27 | Slow-release microcapsule for scale prevention, wax prevention or viscosity reduction of oil well |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104963655A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Segmented release downhole tool with thermodynamic partition plate |
| CN105295880A (en) * | 2015-12-01 | 2016-02-03 | 中国石油大学(华东) | Slow-release type solid corrosion inhibitor and preparation method thereof |
| CN111322034A (en) * | 2020-02-12 | 2020-06-23 | 大庆油田有限责任公司 | Recovery-free pipe cleaning body and pipe cleaning method |
| CN111620459A (en) * | 2020-03-10 | 2020-09-04 | 南京绿慧能源科技有限公司 | Water quality stabilizing device and method for efficient radiation air conditioning system |
| CN115614002A (en) * | 2021-07-13 | 2023-01-17 | 中国石油天然气股份有限公司 | Self-controlled slow-release device |
-
2011
- 2011-05-27 CN CN2011201728198U patent/CN202214323U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963655A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Segmented release downhole tool with thermodynamic partition plate |
| CN104963655B (en) * | 2015-06-16 | 2017-07-07 | 中国石油天然气股份有限公司 | Segmented release downhole tool with thermodynamic partition plate |
| CN105295880A (en) * | 2015-12-01 | 2016-02-03 | 中国石油大学(华东) | Slow-release type solid corrosion inhibitor and preparation method thereof |
| CN105295880B (en) * | 2015-12-01 | 2021-02-09 | 中国石油大学(华东) | Slow-release solid corrosion inhibitor and preparation method thereof |
| CN111322034A (en) * | 2020-02-12 | 2020-06-23 | 大庆油田有限责任公司 | Recovery-free pipe cleaning body and pipe cleaning method |
| CN111322034B (en) * | 2020-02-12 | 2022-03-08 | 大庆油田有限责任公司 | Recovery-free pipe cleaning body and pipe cleaning method |
| CN111620459A (en) * | 2020-03-10 | 2020-09-04 | 南京绿慧能源科技有限公司 | Water quality stabilizing device and method for efficient radiation air conditioning system |
| CN115614002A (en) * | 2021-07-13 | 2023-01-17 | 中国石油天然气股份有限公司 | Self-controlled slow-release device |
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