CN104212434B - Method for reducing back pressure of single-pipe gathering and transportation wellhead of high-water-content oil field - Google Patents
Method for reducing back pressure of single-pipe gathering and transportation wellhead of high-water-content oil field Download PDFInfo
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- CN104212434B CN104212434B CN201310220163.6A CN201310220163A CN104212434B CN 104212434 B CN104212434 B CN 104212434B CN 201310220163 A CN201310220163 A CN 201310220163A CN 104212434 B CN104212434 B CN 104212434B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003921 oil Substances 0.000 claims abstract description 37
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 22
- -1 2-heptadecenyl-1-aminoethyl imidazoline sodium chloride Chemical compound 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000003129 oil well Substances 0.000 claims abstract description 14
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004359 castor oil Substances 0.000 claims abstract description 6
- 235000019438 castor oil Nutrition 0.000 claims abstract description 6
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 6
- FRKGQPFVQPXEHX-UHFFFAOYSA-N 1-benzyl-2-heptadecylbenzimidazole;sodium Chemical compound [Na].CCCCCCCCCCCCCCCCCC1=NC2=CC=CC=C2N1CC1=CC=CC=C1 FRKGQPFVQPXEHX-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- 150000003673 urethanes Chemical class 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 7
- 125000003342 alkenyl group Chemical group 0.000 claims description 7
- 238000005660 chlorination reaction Methods 0.000 claims description 7
- 125000002347 octyl 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])[H] 0.000 claims description 7
- ZWBAMYVPMDSJGQ-UHFFFAOYSA-N perfluoroheptanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZWBAMYVPMDSJGQ-UHFFFAOYSA-N 0.000 claims description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000001103 potassium chloride Substances 0.000 claims description 7
- 235000011164 potassium chloride Nutrition 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 2
- 239000005977 Ethylene Substances 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Polymers OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 abstract description 2
- YENLEHMSMBFUTB-UHFFFAOYSA-N 2-octan-2-ylphenol Chemical compound CCCCCCC(C)C1=CC=CC=C1O YENLEHMSMBFUTB-UHFFFAOYSA-N 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- HSYXZPMOVCRLEQ-UHFFFAOYSA-M potassium;2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoroheptanoate Chemical compound [K+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F HSYXZPMOVCRLEQ-UHFFFAOYSA-M 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004094 surface-active agent Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000003995 emulsifying agent Substances 0.000 description 4
- 229960001777 castor oil Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 2
- 240000000528 Ricinus communis Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003495 polar organic solvent Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- PHTXBNIMGMVGRA-UHFFFAOYSA-N 1-benzyl-2-heptadecylbenzimidazole Chemical compound CCCCCCCCCCCCCCCCCC1=NC2=CC=CC=C2N1CC1=CC=CC=C1 PHTXBNIMGMVGRA-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- SMWDFEZZVXVKRB-UHFFFAOYSA-N anhydrous quinoline Natural products N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 125000003438 dodecyl group Chemical group [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])* 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- ZPIRTVJRHUMMOI-UHFFFAOYSA-N octoxybenzene Chemical group CCCCCCCCOC1=CC=CC=C1 ZPIRTVJRHUMMOI-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 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
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Fluid Mechanics (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
Abstract
A method for reducing the back pressure of a single-pipe gathering and transportation wellhead of a high-water-cut oil field belongs to the technical field of oil extraction engineering in the petroleum industry. Adding seven components such as 2-heptadecenyl-1-aminoethyl imidazoline sodium chloride, N-benzyl-2-heptadecyl benzimidazole sodium sulfonate, dodecyl dimethyl amine oxide, polyoxyethylene (15) sec-octyl phenol ether, octyl phenol polyoxyethylene (10) ether, castor oil polyoxyethylene (90) ether, omega-hydrogen perfluoroheptanoic acid potassium salt and the like into an enamel reaction kettle according to the weight ratio; slowly heating to 65-70 ℃, stirring for 60 minutes, then adding ethyl carbamate according to a proportion, stirring for 60 minutes, then adding methanol and water under the condition of continuous stirring, continuing stirring for 60 minutes, stopping heating, stirring while cooling, and cooling to normal temperature to obtain the viscosity reducer A. The invention meets the requirements of single-pipe gathering and transportation of partial high-water-content oil wells, and achieves the purposes of energy conservation and consumption reduction.
Description
Technical field
The present invention relates to a kind of methods for reducing the defeated wellhead back pressure of high water cut oil field monotube gathering, belong to petroleum industry oil recovery work
Journey technical field.
Background technique
Enter high water-cut stage with Chaheji oilfield exploitation, in order to reduce the consumption of energy in transmission process, oil field will
Former triple-pipe heat tracing process is changed to monotube gathering oil stream journey.But the raising for causing some oil wells back pressure different degrees of in this way.
Lv Yongming be published on 2012 the 01st phase " Oil & Gas Storage " magazines " single tube leads to ball technique and its in Daqing oil field
Application feasibility " one the article pointed out that compared to single-pipe annular water mixing and electrical heating process, single tube leads to ball technique can be certain
Energy consumption is reduced in degree.Lead to ball technique based on mature single tube, has carried out extremely frigid zones single tube and led to the application study of ball technique.Pass through
The parameters such as Daqing oil field block individual well Liquid output, well head oil outlet temperature, moisture content and wellhead back pressure are analyzed, the technique is demonstrated
In the feasibility of Daqing Oilfield.Carry out technique application pre-stage test in the oil field Ao Gula, the result shows that: reasonable arrangement is logical
Ball period, the technique can be applied to the oil well of extremely frigid zones high yield；By taking Qijia oil field as an example, demonstrated by water force
Application feasibility of the technique in stripper field.Single tube leads to application of the ball technique in extremely frigid zones oil field, for further excellent
Change gathering and transportation technology, is energy-saving with certain directive significance.
" the well head time on the 01st phase in 2012 " China Petroleum and chemical standard and quality " magazine is published in Chunlan et al.
Influence and control measure of the pressure to production " one the article pointed out for reasonably optimizing computer collecting system and gathering system, reach benefit most
Bigization analyzes influence of the wellhead back pressure to fluid density in oil pipe, the influence to oil pumping pipe rod, to oil well pump leakage herein
Influence and the influence to pumping unit energy consumption.Wellhead back pressure is qualitatively analyzed to the influence degree of oil well, it is proposed that reduce well head
The several method of back pressure and its measure influenced is cut down, and carried out field application and effect assessment, it is desirable to can be to after from now on
Continuous exploitation is helpful.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention, which provides, a kind of reduces high water cut oil field monotube gathering defeated wellhead back pressure
Method.
A method of the defeated wellhead back pressure of high water cut oil field monotube gathering being reduced, steps are as follows:
Step 1 prepares visbreaking agent A:
The each component weight percent of visbreaking agent A are as follows:
17 alkenyl -1- aminoethyl imidazoline chlorination acid sodium of 2-, 2.5%~2.75%；
N- benzyl -2- heptadecyl benzimidazole sodium sulfonate, 1.5%~1.75%；
Dodecyldimethylamine oxide, 4.25%~4.5%；
Polyoxyethylene (15) secondary octyl phenolic ether, 13.5%~15.5%；
Octyl phenol polyethylene oxide (10) ether, 8.75%~9.25%；
Castor oil polyoxyethylene (90) ether, 2.25%~2.5%；
ω-hydrogen perfluoro-heptanoic acid sylvite, 0.015%~0.0175%；
Urethanes, 0.5%~0.55%；
Methanol, 10.0%~11.5%,
Remaining is water；
Firstly, by 17 alkenyl -1- aminoethyl imidazoline chlorination acid sodium of 2-, N- benzyl -2- heptadecyl benzimidazole sulphur
Sour sodium, dodecyldimethylamine oxide, polyoxyethylene (15) secondary octyl phenolic ether, octyl phenol polyethylene oxide (10) ether, castor-oil plant
Enamel reaction still is added in oily polyoxyethylene (90) ether, seven kinds of components such as ω-hydrogen perfluoro-heptanoic acid sylvite by weight；Slowly it is warming up to
65~70 DEG C, stirring is proportionally added into urethanes after sixty minutes, and stirring after sixty minutes, is added under constant agitation
First alcohol and water continues stirring after sixty minutes, stops heating, stirs while cooling, and cooling room temperature obtains visbreaking agent A；
Visbreaking agent A is added step 2 from high-water-cut oil-producing well oil jacket annulus；
It is added in the ratio that adds of 50~60mg/l (visbreaking agent A and oilwell produced fluid amount) from high-water-cut oil-producing well oil jacket annulus
Afterwards；Oil Well Back Pressure is controlled in 0.5~1.5MPa.
It is an advantage of the invention that adding ratio from high-water-cut oil-producing well in 50~60mg/l (visbreaking agent A and oilwell produced fluid amount)
After oil jacket annulus is added, Oil Well Back Pressure is controlled in 0.5~1.5MPa.Meet the defeated needs of part high-water-cut oil-producing well monotube gathering, reaches
To energy-saving purpose.
Specific embodiment
Obviously, those skilled in the art belong to guarantor of the invention based on many modifications and variations that spirit of the invention is done
Protect range.
Embodiment 1:
A method of the defeated wellhead back pressure of high water cut oil field monotube gathering being reduced, steps are as follows:
Step 1, each component weight percent for preparing visbreaking agent A: visbreaking agent A are as follows: 17 alkenyl -1- aminoethyl imidazoles of 2-
Quinoline chlorination acid sodium, 2.5%~2.75%；N- benzyl -2- heptadecyl benzimidazole sodium sulfonate, 1.5%~1.75%；Oxidation ten
Dialkyl dimethyl amine, 4.25%~4.5%；Polyoxyethylene (15) secondary octyl phenolic ether, 13.5%~15.5%；Octyl phenol is poly-
Oxidative ethane (10) ether, 8.75%~9.25%；Castor oil polyoxyethylene (90) ether, 2.25%~2.5%；ω-hydrogen perfluoro-heptanoic acid
Sylvite, 0.015%~0.0175%；Urethanes, 0.5%~0.55%；Methanol, 10.0%~11.5%, remaining is
Water.
Firstly, by 17 alkenyl -1- aminoethyl imidazoline chlorination acid sodium of 2-, N- benzyl -2- heptadecyl benzimidazole sulphur
Sour sodium, dodecyldimethylamine oxide, polyoxyethylene (15) secondary octyl phenolic ether, octyl phenol polyethylene oxide (10) ether, castor-oil plant
Enamel reaction still is added in oily polyoxyethylene (90) ether, seven kinds of components such as ω-hydrogen perfluoro-heptanoic acid sylvite by weight；Slowly it is warming up to
65~70 DEG C, stirring is proportionally added into urethanes after sixty minutes, and stirring after sixty minutes, is added under constant agitation
First alcohol and water continues stirring after sixty minutes, stops heating, stirs while cooling, and cooling room temperature obtains visbreaking agent A.
The 17 alkenyl -1- aminoethyl imidazoline chlorination acid sodium (industrial goods) of 2-, " the Chinese surface of Huang Hongzhou chief editor
Activating agent overview " book, Chemical Industry Press, September the 1st edition in 2003 has narration in page 549；Purposes: zwitterion is mixed
Control type corrosion inhibiter is closed, has scale effect concurrently.Manufacturer: Liaohe Oil Field oilfield chemistry research institute, drilling institute.
N- benzyl -2- heptadecyl benzimidazole the sodium sulfonate (industrial goods), Huang Hongzhou chief editor's " lives on Chinese surface
Property agent overview " book, Chemical Industry Press, September the 1st edition in 2003 has narration in page 161；Property: red homogeneous powder
End, it is water-soluble.With good dispersibility and high temperature levelling agent, dispersing agent.Purposes: it is used as fur dyeing levelling agent, dispersion
Agent.Production unit: Shanghai Dyestuffs research institute.
The dodecyldimethylamine oxide (industrial goods), alias, dodecyl amine-oxides.Huang Hongzhou chief editor's
" Chinese surfactant overview " book, Chemical Industry Press, September the 1st edition in 2003 have narration in page 563；Property:
Colourless or light yellow clear liquid, soluble easily in water and polar organic solvent are slightly soluble in non-polar organic solvent.Purposes: main to use
In dish washing detergent and industrial liquid bleaching agent, there is foam enhancing foam stabilizing effect, and can improve thickener intermiscibility and product it is whole
Body stability.Production unit: Shanghai Assistant Agent Factory Co., Ltd.；Tianjin surface chemistry auxiliary reagent factory.
Described polyoxyethylene (15) the secondary octyl phenolic ether (industrial goods), alias, polyoxyethylene (15) secondary octyl phenyl ether.It is yellow
" Chinese surfactant overview " book of big vast week chief editor, Chemical Industry Press, September the 1st edition in 2003 have in page 337
Narration；Purposes: it is used as water soluble emulsifier, detergent, wetting agent, diffusant etc..Production unit: Shanghai Gaoqiao petro-chemical corporation essence
Thin chemical company.
Described octyl phenol polyethylene oxide (10) ether (industrial goods), alias, polyoxyethylene (10) octyl phenol ether.Huang Hong
" Chinese surfactant overview " book of Zhou chief editor, Chemical Industry Press, September the 1st edition in 2003 are chatted in page 339
It states；Property: yellowish-brown paste dissolves in the water of various hardness.Purposes: broad spectrum type excellent emulsifier, using face are extremely wide.Production
Unit: the Fushun City chemical plant Dong Yuan, Beijing Orient Rhodia chemical company.
Described castor oil polyoxyethylene (90) ether (industrial goods), alias, Emulsifier EL-90." the China of Huang Hongzhou chief editor
Surfactant overview " book, Chemical Industry Press, September the 1st edition in 2003 has narration in page 426；Property: yellow to palm fibre
Color paste, it is soluble easily in water, it is dissolved in fatty acid, mineral oil, grease, wax and most of organic solvents, is resistant to hard water, acid, inorganic
Salt.Purposes: make woolen industry, pharmaceuticals industry and general industry additive, emulsifier.Production unit: Jiangsu Jingjiang petrochemical industry
Head factory, Shanghai Assistant Agent Factory Co., Ltd..
The ω-hydrogen perfluoro-heptanoic acid sylvite (industrial goods)." Chinese surfactant overview " book of Huang Hongzhou chief editor,
Chemical Industry Press, September the 1st edition in 2003 have narration in page 261；Property: white crystal is dissolved in water, nontoxic.Purposes:
Anionic surfactant is used as dispersing agent when tetrafluoroethene suspension polymerisation.Production unit: Chinese Academy of Sciences's Shanghai organic chemistry research
Trial (demonstration) plant, institute.
The urethanes is published in the " amino on 2012 the 8th phase " brewing science and technology " magazines in Luo Jie et al.
Urethanes performance is described in detail in an Ethyl formate detection method progress " text.Urethanes
It is produced by Shijiazhuang Chang Hong Chemical Co., Ltd..
The methanol is common industrial chemicals, commercially available.
Visbreaking agent A is added step 2 from high-water-cut oil-producing well oil jacket annulus.A kind of oil well of chemicals dosing plant application Chinese patent
The method described in chemicals dosing plant ZL200620123876.6 with pressure carries out.
It is added in the ratio that adds of 50~60mg/l (visbreaking agent A and oilwell produced fluid amount) from high-water-cut oil-producing well oil jacket annulus
Afterwards.Oil Well Back Pressure is controlled in 0.5~1.5MPa.
As described above, embodiments of the present invention are described in detail, as long as but essentially without this hair of disengaging
Bright inventive point and effect can have many deformations, this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (1)
1. a kind of method for reducing the defeated wellhead back pressure of high water cut oil field monotube gathering, which is characterized in that use monotube gathering oil stream journey, step
It is rapid as follows:
Step 1 prepares visbreaking agent A:
The each component weight percent of visbreaking agent A are as follows:
17 alkenyl -1- aminoethyl imidazoline chlorination acid sodium of 2-, 2.5%~2.75%；
N- benzyl -2- heptadecyl benzimidazole sodium sulfonate, 1.5%~1.75%；
Dodecyldimethylamine oxide, 4.25%~4.5%；
Polyoxyethylene (15) secondary octyl phenolic ether, 13.5%~15.5%；
Octyl phenol polyethylene oxide (10) ether, 8.75%~9.25%；
Castor oil polyoxyethylene (90) ether, 2.25%~2.5%；
ω-hydrogen perfluoro-heptanoic acid sylvite, 0.015%~0.0175%；
Urethanes, 0.5%~0.55%；
Methanol, 10.0%~11.5%, remaining is water；
Firstly, by 17 alkenyl -1- aminoethyl imidazoline chlorination acid sodium of 2-, N- benzyl -2- heptadecyl benzimidazole sodium sulfonate,
Dodecyldimethylamine oxide, polyoxyethylene (15) secondary octyl phenolic ether, octyl phenol polyethylene oxide (10) ether, castor oil polyoxy
Enamel reaction still is added in ethylene (90) ether, ω-seven kinds of components of hydrogen perfluoro-heptanoic acid sylvite by weight；Slowly it is warming up to 65~70
DEG C, stirring is proportionally added into urethanes after sixty minutes, stirring after sixty minutes, be added under constant agitation methanol and
Water continues stirring after sixty minutes, stops heating, stirs while cooling, and cooling room temperature obtains visbreaking agent A；
Visbreaking agent A is added step 2 from high-water-cut oil-producing well oil jacket annulus；
The ratio that adds in visbreaking agent A and oilwell produced fluid amount is 50~60mg/l after the addition of high-water-cut oil-producing well oil jacket annulus；Oil
Well back pressure is controlled in 0.5~1.5MPa.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121881A (en) * | 2007-07-31 | 2008-02-13 | 中国石油天然气股份有限公司 | Emulsifying viscosity reducer for crude oil gathering and transportation and preparation method thereof |
| CN101235279A (en) * | 2007-02-02 | 2008-08-06 | 富顺集团控股有限公司 | Highly effective viscosity-reducing agent for thermodynamic oil extraction process |
| CN102127408A (en) * | 2010-12-23 | 2011-07-20 | 中国石油天然气股份有限公司 | Flushing fluid containing polymer or gel in oil well produced fluid |
| CN102140909A (en) * | 2010-01-29 | 2011-08-03 | 中国石油化工股份有限公司 | Method for reducing viscosity of heavy oil by emulsification |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6908888B2 (en) * | 2001-04-04 | 2005-06-21 | Schlumberger Technology Corporation | Viscosity reduction of viscoelastic surfactant based fluids |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235279A (en) * | 2007-02-02 | 2008-08-06 | 富顺集团控股有限公司 | Highly effective viscosity-reducing agent for thermodynamic oil extraction process |
| CN101121881A (en) * | 2007-07-31 | 2008-02-13 | 中国石油天然气股份有限公司 | Emulsifying viscosity reducer for crude oil gathering and transportation and preparation method thereof |
| CN102140909A (en) * | 2010-01-29 | 2011-08-03 | 中国石油化工股份有限公司 | Method for reducing viscosity of heavy oil by emulsification |
| CN102127408A (en) * | 2010-12-23 | 2011-07-20 | 中国石油天然气股份有限公司 | Flushing fluid containing polymer or gel in oil well produced fluid |
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