CN106967404A - Reducing thick oil viscosity helps row's composition, viscosity reduction cleanup additive, preparation method and application - Google Patents
Reducing thick oil viscosity helps row's composition, viscosity reduction cleanup additive, preparation method and application Download PDFInfo
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- CN106967404A CN106967404A CN201710097068.XA CN201710097068A CN106967404A CN 106967404 A CN106967404 A CN 106967404A CN 201710097068 A CN201710097068 A CN 201710097068A CN 106967404 A CN106967404 A CN 106967404A
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Abstract
Row's composition, viscosity reduction cleanup additive, preparation method and application are helped the invention discloses a kind of reducing thick oil viscosity, belongs to technical field of petroleum extraction.The viscosity reduction helps row's composition to be made up of the component of following mass fraction：0.1~2 part of fluorocarbon surfactant, 0.5~1 part of hc-surfactant, 0.25~1 part of auxiliary agent, 0.05~0.3 part of cleanup additive.Wherein, one or more of the fluorocarbon surfactant in FC 01, FC 02, FC 04 1, FC 06, FC 08, FC 11；One or more of the hc-surfactant in α sodium olefin sulfonates, SYHSY, SDBS, YN；One or more of the cleanup additive in F370, F633, SH6.The viscosity reduction helps row's composition to have relatively low surface and interface tension force, can effectively reduce the dynamic viscosity of viscous crude, improves surface wetting, improves water recovery rate.
Description
Technical field
Help row's composition the present invention relates to a kind of reducing thick oil viscosity, also relate to comprising said composition viscosity reduction cleanup additive and
Its preparation method and application, belong to technical field of petroleum extraction.
Background technology
The characteristics of viscous crude is protruded the most is that gum asphaltic content is high, viscosity is big, poor fluidity, therefore the pass of thickened oil recovery
Key is reduction viscosity, improves mobility.At present, China's exploitation super―heavy oil is mainly using thermal recovery skills such as steam soak, steam drives
Art.But in the later stage of handling up, the problems such as often there is oil-gas ratio reduction, viscosity of crude increase in steam injection exploitation, wellbore lift is difficult, sternly
The deep development of heavy crude reservoir is constrained again.It is well known that steam injection can be reduced with steam injection efficient thick-oil viscosity reduction cleanup additive
Pressure, reduce wellbore lift resistance, improve steam injection production economic benefit, be many rounds handle up the later stage improve recovery ratio it is effective
Approach.But the temperature of steam is general higher (reaching as high as 350 DEG C), possess higher with the viscosity reduction cleanup additive requirement that steam injects
Heat resistance.
At present, its main component of reducing thick oil viscosity cleanup additive more commonly used is hydrocarbon class surfactant.Hydrocarbon class surface
There is problems with activating agent：1) surface-active is not good enough, the surface tension of water is down to 27mNm-1Left and right；2) acyclic acidic
It is almost invalid in border, good surface-active is played in alkaline environment；3) heat resistance is not enough.Such as petroleum exploration and development research institute
The HEA heavy crude thinners of development, the GY heavy crude thinners that University of Petroleum develops, and Xinjiang petroleum exploration and development research institute develop
Using petroleum soap or naphthenate as the heavy crude thinner of main component, though with good heat resistance, surface-active
It is relatively low, it usually needs with alkaline matter compounding play reducing viscosity by emulsifying effect, and alkaline matter can cause clay swell, fouling so as to
Injure stratum.Publication No. CN1560177A patent of invention discloses a kind of high temperature resistant heavy crude thinner, specially N- alkyl-
γ-double cropping ammonium cation surfactant, resistance to 200 DEG C of high temperature above have good emulsifying effectiveness to viscous crude, and without and alkali
Property material compounding use, but synthesis technique is complicated, production cost is higher.
Fluorocarbon surfactant refers to that hydrogen moiety or whole in hydrocarbon chain are replaced by fluorine atoms formed surface
Activating agent.Fluorocarbon surfactant can be divided into anionic, cationic, non-ionic and amphoteric, and its molecular structure can be with
Adjustment changes as needed.Fluorocarbon surfactant has " three high " characteristic, i.e. surface-active high, and extremely low concentration is (general
The 1/100 of logical hc-surfactant concentration~14~20mNm 1/10) is down to regard to the surface tension that can make water-1；Heat endurance
Height, such as anhydrous perfluoro octyl sulfonic acid salt heats 5h at 400 DEG C to decompose；Chemical stability is high, can resist strong acid, highly basic and
Strong oxidation.Publication No. CN103396785A patent of invention discloses a kind of anti-swollen row of helping for including fluorocarbon surfactant
Agent, is made up of the component of following mass percent：Fluorocarbon surfactant (FCO, purchased from Hangzhou Ren Shan Science and Technology Ltd.s) 2~
4%, 50% tetramethyl ammonium chloride 35~45%, cleanup additive (being purchased from Hebei Tong Shuo Chemical Co., Ltd.s) 1.5~3%, alkyl phenol
APEO 0.3~0.8%, neopelex 0.3~0.8%, water 50~60%.This prevents that swollen cleanup additive can press down
Reservoir CLAY MINERALS AND THEIR SIGNIFICANCE hydration swelling processed, and help viscous crude to be discharged from underground, but its reducing viscosity by emulsifying DeGrain, the row's of helping property
Further raising can be need.
The content of the invention
Row's composition is helped it is an object of the invention to provide a kind of reducing thick oil viscosity.
Meanwhile, the present invention also provides a kind of reducing thick oil viscosity cleanup additive comprising above-mentioned composition.
Finally, the present invention provides a kind of preparation method and application of reducing thick oil viscosity cleanup additive again.
In order to realize the above object the technical solution adopted in the present invention is：
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.1~2 part of fluorocarbon surfactant, carbon
0.5~1 part of hydrogen surfactant, 0.25~1 part of auxiliary agent, 0.05~0.3 part of cleanup additive.
The fluorocarbon surfactant be selected from FC-01 (perfluoroalkyl ethers alcohol amine salt type anion fluorocarbon surfactant),
FC-02 (both sexes perfluoroalkyl ethers betaines surfactant, acid medium is in cationic, and alkaline medium is in anionic,
PH=6~8, in both sexes), FC-04-1 (live by perfluoroalkyl ethers quaternary ammonium salt cationic class surfactant and non-ion fluorin carbon surface
The product that property agent is compounded jointly), FC-06 (perfluoroalkyl ethers oxa- type nonionic surfactant), FC-08 (perfluoroalkyl ethers
Amine oxide type cation fluorine carbon surface active agent), in FC-11 (perfluoroalkyl ethers carboxylic acid ammonium type anion fluorocarbon surfactant)
Any one or more.It is limited that FC-01, FC-02, FC-04-1, FC-06, FC-08, FC-11 are purchased from the positive science and technology in Shanghai sea
Company.
The hc-surfactant is selected from α-sodium olefin sulfonate (AOS), SYHSY (petroleum sulfonates, purchased from Shengli Oil Field
Yuan Run Chemical Co., Ltd.s), SDBS (neopelex is purchased from the factory of Tianjin chemical reagent three), YN (enuatrol,
Purchased from Qingdao Rui Nuo chemical inc) in any one or more.
The auxiliary agent is cosolvent and/or energizer, and cosolvent is selected from the short chain alcohols such as methanol, ethanol, and energizer is selected from urine
Element, sodium acid carbonate etc..It is preferred that, auxiliary agent is made up of ethanol and urea, and the mass ratio of the two is 0.3~2:0.2~3.
Any one or more of the cleanup additive in F370, F633, SH6.F370, F633 are purchased from Hangzhou benevolence China fir
Science and Technology Ltd., SH6 is surfactant oil displacement, purchased from sinopec Nanjing Chemical Industrial Co., Ltd.
It is preferred that, reducing thick oil viscosity helps row's composition to be made up of the component of following mass fraction：FC-01 fluorocarbon surfactants
0.1~0.2 part, 0.75~1 part of YN hc-surfactants, 0.3~0.4 part of ethanol, 0.3~0.4 part of urea, F633 cleanup additives
0.1~0.2 part.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：Live on 0.1~2 part of fluorocarbon surfactant, hydrocarbon surface
0.5~1 part of agent of property, 0.25~1 part of auxiliary agent, 0.05~0.3 part of cleanup additive, surplus is water.
The fluorocarbon surfactant, hc-surfactant, auxiliary agent, cleanup additive are ibid selected.
The preparation method of reducing thick oil viscosity cleanup additive is：Each component is accurately taken according to mass fraction, is well mixed, produces.
The application of reducing thick oil viscosity cleanup additive, be specially：According to mass ratio 0.3~3:5~10 is thick by the addition of viscosity reduction cleanup additive
In oil, contact is not more than 3h at 20~280 DEG C of temperature.
Beneficial effects of the present invention：
Viscosity reduction helps row's composition by fluorocarbon surfactant, hc-surfactant, auxiliary agent and cleanup additive group in the present invention
Into said composition can effectively reduce the dynamic viscosity of viscous crude, improve the wetability of rock surface, improve water recovery rate.When using
First mixed with water, then heavy crude reservoir is injected with steam, it is simple to operate, convenient.Wherein, fluorocarbon surfactant, hydrocarbon surface are lived
Property agent be reducing thick oil viscosity key component, the two, which is used cooperatively, compares single fluorine carbon or hc-surfactant viscosity reducing effect more
It is good.In addition, energizer can at the formation temperature decompose and discharge gas, increase stratum energy.Cleanup additive can with flow through it is small
The crude oil effect in duct, is covered in the deposit aging colloid of rock surface, asphalitine and semi-polarity composition by long period of soaking and (such as hates
Water thick film) etc. the macromolecular that mutually winds divest rapidly, change the wetability of rock surface, and rock cementing mineral is produced one
Fixed shrinkage, finally causes duct/steam channel and the relative increase of oil flow channel, filtrational resistance reduction, so as to improve back production
Water rate.Cleanup additive can cooperate with fluorine carbon-to-carbon hydrogen surfactant to strengthen viscosity reducing effect in said composition.
Viscosity reduction cleanup additive can show viscous crude good viscosity reducing effect under relatively low concentration in the present invention, without
With alkaline matter compounding use, and with relatively low surface and interface tension force, surface wetting is can effectively improve, improve back production
Water rate.
Brief description of the drawings
Fig. 1 is the picture of cleanup additive evaluation experimental device in test example；
Fig. 2 is cleanup additive evaluation experimental device schematic diagram.
Embodiment
Following embodiments are only described in further detail to the present invention, but do not constitute any limitation of the invention.
Embodiment 1
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.1 part of FC-01 fluorocarbon surfactants,
0.5 part of AOS (α-sodium olefin sulfonate, purchased from Sinolight Chemical Co., Ltd.), 0.25 part of ethanol, 0.05 part of F370 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.1 part of FC-01 fluorocarbon surfactants, AOS 0.5
Part, 0.25 part of ethanol, 0.05 part of F370 cleanup additives, surplus is water.
The preparation process of above-mentioned viscosity reduction cleanup additive is：Each component is accurately taken according to mass fraction, is well mixed, produces.
The application of above-mentioned viscosity reduction cleanup additive, be specially：According to mass ratio 3:Viscosity reduction cleanup additive is injected certain viscous crude by 7 with steam
In oil reservoir, 2h is contacted at 200 DEG C of temperature, well is closed one day, taken out after being opened after wellhead temperature reduction.
Embodiment 2
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.5 part of FC-02 fluorocarbon surfactants,
0.6 part of SYHSY, 0.3 part of urea, 0.1 part of F633 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.5 part of FC-02 fluorocarbon surfactants, SYHSY 0.6
Part, 0.3 part of urea, 0.1 part of F633 cleanup additives, surplus is water.Its preparation process be the same as Example 1.
The application of above-mentioned viscosity reduction cleanup additive, be specially：According to mass ratio 1:Viscosity reduction cleanup additive is injected certain viscous crude by 6 with steam
In oil reservoir, 2h, subsequent operation be the same as Example 1 are contacted at 200 DEG C of temperature.
Embodiment 3
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：FC-04-1 fluorocarbon surfactants 0.2
Part, 0.7 part of SDBS, 0.4 part of ethanol, 0.1 part of SH6 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.2 part of FC-04-1 fluorocarbon surfactants, SDBS
0.7 part, 0.4 part of ethanol, 0.1 part of SH6 cleanup additives, surplus is water.Its preparation process be the same as Example 1.
The application of above-mentioned viscosity reduction cleanup additive, be specially：According to mass ratio 1.8:7 by viscosity reduction cleanup additive, with steam, to inject certain thick
In oil reservoir, 2h, subsequent operation be the same as Example 1 are contacted at 200 DEG C of temperature.
Embodiment 4
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.3 part of FC-06 fluorocarbon surfactants,
0.8 part of YN, 0.5 part of urea, 0.18 part of F633 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.3 part of FC-06 fluorocarbon surfactants, 0.8 part of YN,
0.5 part of urea, 0.18 part of F633 cleanup additives, surplus is water.Its preparation process be the same as Example 1.
The application of above-mentioned viscosity reduction cleanup additive, be specially：According to mass ratio 1:Viscosity reduction cleanup additive is injected certain viscous crude by 4 with steam
In oil reservoir, 2h, subsequent operation be the same as Example 1 are contacted at 200 DEG C of temperature.
Embodiment 5
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.4 part of FC-08 fluorocarbon surfactants,
0.9 part of AOS, 0.1 part of ethanol, 0.15 part of urea, 0.25 part of F370 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.4 part of FC-08 fluorocarbon surfactants, AOS 0.9
Part, 0.1 part of ethanol, 0.15 part of urea, 0.25 part of F370 cleanup additives, surplus is water.Its preparation process be the same as Example 1.
The application of above-mentioned viscosity reduction cleanup additive, be specially：According to mass ratio 2.5:9 by viscosity reduction cleanup additive, with steam, to inject certain thick
In oil reservoir, 2h, subsequent operation be the same as Example 1 are contacted at 200 DEG C of temperature.
Embodiment 6
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.5 part of FC-11 fluorocarbon surfactants,
1 part of SYHSY, 0.2 part of ethanol, 0.25 part of urea, 0.3 part of SH6 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.5 part of FC-11 fluorocarbon surfactants, SYHSY 1
Part, 0.2 part of ethanol, 0.25 part of urea, 0.3 part of SH6 cleanup additives, surplus is water.Its preparation process be the same as Example 1.
The application of above-mentioned viscosity reduction cleanup additive, be specially：According to mass ratio 2.5:9 by viscosity reduction cleanup additive, with steam, to inject certain thick
In oil reservoir, 2h, subsequent operation be the same as Example 1 are contacted at 200 DEG C of temperature.
Embodiment 7
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.5 part of FC-01 fluorocarbon surfactants,
0.5 part of YN, 0.15 part of ethanol, 0.15 part of urea, 0.1 part of F633 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.5 part of FC-01 fluorocarbon surfactants, 0.5 part of YN,
0.15 part of ethanol, 0.15 part of urea, 0.1 part of F633 cleanup additives, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Embodiment 8
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.8 part of FC-01 fluorocarbon surfactants,
0.75 part of YN, 0.2 part of ethanol, 0.1 part of urea, 0.2 part of F633 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.8 part of FC-01 fluorocarbon surfactants, YN 0.75
Part, 0.2 part of ethanol, 0.1 part of urea, 0.2 part of F633 cleanup additives, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Embodiment 9
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.2 part of FC-01 fluorocarbon surfactants,
1 part of YN, 0.25 part of ethanol, 0.25 part of urea, 0.3 part of F633 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.2 part of FC-01 fluorocarbon surfactants, 1 part of YN, second
0.25 part of alcohol, 0.25 part of urea, 0.3 part of F633 cleanup additives, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Embodiment 10
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.5 part of FC-01 fluorocarbon surfactants,
0.5 part of FC-02 fluorocarbon surfactants, 0.5 part of AOS, 0.25 part of ethanol, 0.1 part of F370 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.5 part of FC-01 fluorocarbon surfactants, FC-02 fluorine carbon
0.5 part of surfactant, 0.5 part of AOS, 0.25 part of ethanol, 0.1 part of F370 cleanup additives, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Embodiment 11
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：1 part of FC-02 fluorocarbon surfactants,
0.5 part of FC-08 fluorocarbon surfactants, 0.3 part of AOS, 0.3 part of SYHSY, 0.4 part of urea, 0.1 part of F370 cleanup additives, F633
0.05 part of cleanup additive.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：1 part of FC-04-1 fluorocarbon surfactants, FC-08 fluorine carbon
0.5 part of surfactant, 0.3 part of AOS, 0.3 part of SYHSY, 0.4 part of urea, 0.1 part of F370 cleanup additives, F633 cleanup additives
0.05 part, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Embodiment 12
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.8 part of FC-06 fluorocarbon surfactants,
0.7 part of FC-11 fluorocarbon surfactants, 0.4 part of SDBS, 0.6 part of YN, 0.3 part of ethanol, 0.2 part of urea, SH6 cleanup additives
0.15 part, 0.1 part of F633 cleanup additives.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：0.8 part of FC-06 fluorocarbon surfactants, FC-11 fluorine carbon
0.7 part of surfactant, 0.4 part of SDBS, 0.6 part of YN, 0.3 part of ethanol, 0.2 part of urea, 0.15 part of SH6 cleanup additives, F633
0.1 part of cleanup additive, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Embodiment 13
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：FC-01, FC-02, FC-11 fluorocarbon surface
Activating agent (mass ratio 1:1:1) 1.8 parts, AOS, SDBS, YN hc-surfactant (mass ratio 1:1:1) 0.9 part, ethanol, urine
Plain auxiliary agent (mass ratio 1:1) 0.4 part, F370, F633, SH6 cleanup additive (mass ratio 1:1:1) 0.3 part.
Reducing thick oil viscosity cleanup additive, the composition of every 100 mass parts is：FC-01, FC-02, FC-11 fluorocarbon surfactant (matter
Amount compares 1:1:1) 1.8 parts, AOS, SDBS, YN hc-surfactant (mass ratio 1:1:1) 0.9 part, ethanol, urea auxiliary agent (matter
Amount compares 1:1) 0.4 part, F370, F633, SH6 cleanup additive (mass ratio 1:1:1) 0.3 part, surplus is water.
The preparation of above-mentioned viscosity reduction cleanup additive and the equal be the same as Example 1 of application.
Comparative example 1
Reducing thick oil viscosity composition, is made up of the component of following mass fraction：0.5 part of FC-02 fluorocarbon surfactants,
0.6 part of SYHSY, 0.3 part of urea.
Heavy crude thinner, the composition of every 100 mass parts is：0.5 part of FC-02 fluorocarbon surfactants, 0.6 part of SYHSY,
0.3 part of urea, surplus is water.
Comparative example 2
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.4 part of FC-08 fluorocarbon surfactants,
0.9 part of AOS, 0.1 part of ethanol, 0.15 part of urea.
Heavy crude thinner, the composition of every 100 mass parts is：0.4 part of FC-08 fluorocarbon surfactants, 0.9 part of AOS, second
0.1 part of alcohol, 0.15 part of urea, surplus is water.
Comparative example 3
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.8 part of FC-01 fluorocarbon surfactants,
0.75 part of YN, 0.2 part of ethanol, 0.1 part of urea.
Heavy crude thinner, the composition of every 100 mass parts is：0.8 part of FC-01 fluorocarbon surfactants, 0.75 part of YN, second
0.2 part of alcohol, 0.1 part of urea, surplus is water.
Comparative example 4
Reducing thick oil viscosity helps row's composition, is made up of the component of following mass fraction：0.8 part of FC-06 fluorocarbon surfactants,
0.7 part of FC-11 fluorocarbon surfactants, 0.4 part of SDBS, 0.6 part of YN, 0.3 part of ethanol, 0.2 part of urea.
Heavy crude thinner, the composition of every 100 mass parts is：0.8 part of FC-06 fluorocarbon surfactants, FC-11 fluorocarbon surfaces
0.7 part of activating agent, 0.4 part of SDBS, 0.6 part of YN, 0.3 part of ethanol, 0.2 part of urea, surplus is water.
Test example
1) reducing thick oil viscosity helps the viscosity reducing effect evaluation of row's composition
Test method：50g viscous crude is added in 250mL beakers, is stood in 50 DEG C of waters bath with thermostatic control after 10min, with rotation
Viscosimeter determines the viscosity (η of viscous crude0)；Viscosity reduction cleanup additive and viscous crude (mass ratio 3 are added in other 250mL beakers:7),
Stirring is uniform to emulsifying, and the viscosity (η of rotary viscosity design determining emulsion is used at 50 DEG C1), reducing thick oil viscosity rate E is calculated by following formula 1,
As a result it see the table below 1.
Formula 1：E=(η0-η1)/η0× 100%；
In formula, η0For the viscosity of viscous crude, η1For the viscosity of emulsion.
The viscosity reducing effect evaluation of viscosity reduction composition in the embodiment 1~13 of table 1 and comparative example 1~4
As shown in Table 1, the viscosity reducing effect of viscosity reduction composition is substantially better than comparative example 1~4 in embodiment 1~13, it is seen that help
The addition of row's agent can cooperate with the viscosity break ratio of increase thinner, improve the mobility of crude oil.Also, FC-01 fluorocarbon surfactants,
The combination of YN hc-surfactants and F633 cleanup additives has preferable viscosity reducing effect.
2) row's of helping effect assessment of reducing thick oil viscosity cleanup additive
Test method：Using the intelligent cleanup additive evaluation experimental devices (see Fig. 1) of ZPJPJ-II, according to petroleum industry standard
SY/T5755-1995 carries out the row's of helping effect assessment, and experimental provision schematic diagram is shown in that (1-1 is pressure maintaining valve one to Fig. 2 in Fig. 2, and 1-2 is steady
Pressure valve two, 2-1 is switching valve one, and 2-2 is switching valve two, and 2-3 is switching valve three, and 2-4 is switching valve four, and 2-5 is switching valve five,
2-6 is switching valve six, and 3 be that first class pressure shows table, and 4 be one-level pressure maintaining valve, and 5 be pressure sensor, and 6 be pressure-reducing valve, and 7 be gas storage
Container (air), 8 be displacing medium liquid storage container (soft rubber sleeve is used to isolate gas-liquid, and displacing medium is kerosene), and 9 be gas cylinder,
10 be fill out sand tube, and 11 be KCl solution liquid storage containers, and 12 be cleanup additive liquid storage container, is expelled to graduated cylinder).Concrete operations are：1) exist
0.18~0.28mm of granularity quartz sand is filled in fill out sand tube 10, the valve at two ends is closed, fill out sand tube 10 is weighed and is recorded as satisfying
With preceding weight M0, then flow is connected；2) the supply source of the gas of gas cylinder 9 is opened, pressure is adjusted to using the pressure-reducing valve 6 of gas cylinder 9
0.4MPa；One-level pressure maintaining valve 4 is adjusted, and observes the reading of first class pressure table 3, pressure stability (is noted in 300KPa：Regulation process
The 2-1 of the switching valve one and 2-2 of switching valve two is closed)；3) exits and entrances valve of KCl solution liquid storage container 11 is opened, switching valve is opened
Five 2-5, open the 2-6 of switching valve six, open the 2-4 of switching valve four, close other all switching valves；It is slow again to open the 2- of switching valve one
1, the numerical value of pressure one is observed, such as pressure does not have stabilization in 7KPa, by adjusting the 1-1 of pressure maintaining valve one, carries out constant pressure；Principle：Gas storage is held
Air in device 7 presses to KCl solution liquid storage container 11, make KCl solution enter fill out sand tube 10, and by 2%KCl solution by its
Saturation, after saturation is finished, closes the 2-1 of switching valve one, closes the 2-5 of the switching valve five and 2-6 of switching valve six, take out the two ends of fill out sand tube 10
Snap joint, weigh M1, calculate pore volume：V=(M1-M0)/ρKCl solution-V0(dead volume)；4) KCl solution liquid storages are closed
The exits and entrances valve of container 11, opens the exits and entrances valve of kerosene liquid storage container 8, closes the 2-4 of switching valve four, opens the 2- of switching valve five
5, the 2-6 of switching valve six is opened, the 2-3 of switching valve three is opened, closes other all switching valves；It is slow again to open the 2-2 of switching valve two, see
The numerical value of pressure two is examined, such as pressure does not have stabilization in 7.4KPa, by adjusting the 1-2 of pressure maintaining valve two, carries out constant pressure；By kerosin,
The discharge rate SQ of KCl solution when recording kerosene outflow1, the 2-2 of switching valve two is closed, the 2-5 of the switching valve five and 2- of switching valve six is closed
6, the 2-3 of switching valve three is closed, the discharge rate of fill out sand tube 10 is：Q1=SQ1-V0；5) exits and entrances valve of kerosene liquid storage container 8 is closed, is beaten
The exits and entrances valve of KCl solution liquid storage container 11 is opened, the 2-3 of switching valve three is closed, the 2-5 of switching valve five is opened, switching valve six is opened
2-6, opens the 2-4 of switching valve four, closes other all switching valves；It is slow again to open the 2-1 of switching valve one, the numerical value of pressure one is observed,
Do not stablize as pressure in 7KPa, by adjusting the 1-1 of pressure maintaining valve one, carry out constant pressure；By KCl solution, during record KCl solution outflows
The discharge rate SQ of kerosene2, the 2-1 of switching valve one is closed, the 2-5 of the switching valve five and 2-6 of switching valve six is closed, the 2-4 of switching valve four is closed,
The discharge rate of fill out sand tube 10：Q2=SQ2-V0；6) KCl solution liquid storage container exits and entrances valves are closed, kerosene liquid storage container 8 is opened
Exits and entrances valve, closes the 2-4 of switching valve four, opens the 2-5 of switching valve five, opens the 2-6 of switching valve six, opens the 2-3 of switching valve three, closes
Close other all switching valves；It is slow again to open the 2-2 of switching valve two, the numerical value of pressure two is observed, such as pressure does not have stabilization in 7.4KPa, led to
The 1-2 of pressure maintaining valve two is overregulated, constant pressure is carried out；Pass through kerosin, the discharge rate SQ of KCl solution during record kerosene outflow3, close
The 2-2 of switching valve two is closed, the 2-5 of the switching valve five and 2-6 of switching valve six is closed, the 2-3 of switching valve three, the discharge rate of fill out sand tube 10 is closed：Q3
=SQ3-V0, expulsion efficiency：A0=Q3/(V-Q1+Q2)；7) substituted with viscosity reduction cleanup additive (being stored in cleanup additive liquid storage container 12)
2%KCl solution repeat the above steps 1)~6), calculate expulsion efficiency A1, the row of helping leads：E=(A1-A0)/A0.As a result 2 be see the table below.
The row's of helping effect assessment of the viscosity reduction cleanup additive of table 2
As shown in Table 2, the addition of cleanup additive can effectively improve the row of returning of system and lead, wherein the row's of helping effect of F633 cleanup additives
It is best.
Claims (10)
1. reducing thick oil viscosity helps row's composition, it is characterised in that：It is made up of the component of following mass fraction：Fluorocarbon surfactant
0.1~2 part, 0.5~1 part of hc-surfactant, 0.25~1 part of auxiliary agent, 0.05~0.3 part of cleanup additive.
2. composition according to claim 1, it is characterised in that：The fluorocarbon surfactant be selected from FC-01, FC-02,
One or more in FC-04-1, FC-06, FC-08, FC-11；The hc-surfactant be selected from α-sodium olefin sulfonate,
One or more in SYHSY, SDBS, YN.
3. composition according to claim 2, it is characterised in that：The auxiliary agent is cosolvent and/or energizer, cosolvent
Selected from methanol, ethanol, energizer is selected from urea, sodium acid carbonate.
4. the composition according to Claims 2 or 3, it is characterised in that：The cleanup additive is in F370, F633, SH6
It is one or more.
5. composition according to claim 4, it is characterised in that：It is made up of the component of following mass fraction：FC-01 fluorine carbon
0.1~0.2 part of surfactant, 0.75~1 part of YN hc-surfactants, 0.3~0.4 part of ethanol, 0.3~0.4 part of urea,
0.1~0.2 part of F633 cleanup additives.
6. reducing thick oil viscosity cleanup additive, it is characterised in that：The composition of every 100 mass parts is：0.1~2 part of fluorocarbon surfactant, carbon
0.5~1 part of hydrogen surfactant, 0.25~1 part of auxiliary agent, 0.05~0.3 part of cleanup additive, surplus is water.
7. viscosity reduction cleanup additive according to claim 7, it is characterised in that：The fluorocarbon surfactant be selected from FC-01,
One or more in FC-02, FC-04-1, FC-06, FC-08, FC-11；The hc-surfactant is selected from α-alkenyl sulphur
One or more in sour sodium, SYHSY, SDBS, YN.
8. viscosity reduction cleanup additive according to claim 7, it is characterised in that：The cleanup additive is in F370, F633, SH6
One or more.
9. the preparation method of viscosity reduction cleanup additive as any one of claim 6~8, it is characterised in that：Step is as follows：According to
Mass fraction accurately takes each component, is well mixed, produces.
10. the application of viscosity reduction cleanup additive as any one of claim 6~8, it is characterised in that：According to mass ratio 0.3~
3:5~10 add viscosity reduction cleanup additive in viscous crude, and contact is not more than 3h at 20~280 DEG C of temperature.
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Cited By (4)
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| CN113913173A (en) * | 2020-07-10 | 2022-01-11 | 中国石油化工股份有限公司 | Emulsified oil displacement agent for water-drive development of thickened oil and performance evaluation method thereof |
| CN114316924A (en) * | 2020-10-10 | 2022-04-12 | 中石化南京化工研究院有限公司 | Waterproof locking agent based on anion-cation pair effect and application thereof |
| CN114958329A (en) * | 2022-06-25 | 2022-08-30 | 成都劳恩普斯科技有限公司 | Super-heavy oil viscosity reducer for super-high salinity |
| CN115725285A (en) * | 2021-08-27 | 2023-03-03 | 中国石油天然气股份有限公司 | Thickened oil viscosity reduction type workover fluid and preparation method thereof |
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| CN104140802A (en) * | 2013-10-29 | 2014-11-12 | 中国石油化工股份有限公司 | Foam drainage agent for gas well drainage gas recovery |
| CN104927829A (en) * | 2015-05-15 | 2015-09-23 | 北京千永科技有限公司 | Highly anti-drag slickwater and application thereof |
| CN106190085A (en) * | 2016-07-19 | 2016-12-07 | 郑州鑫源防磨耐材有限公司 | A kind of pressure break cleanup additive and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913173A (en) * | 2020-07-10 | 2022-01-11 | 中国石油化工股份有限公司 | Emulsified oil displacement agent for water-drive development of thickened oil and performance evaluation method thereof |
| CN114316924A (en) * | 2020-10-10 | 2022-04-12 | 中石化南京化工研究院有限公司 | Waterproof locking agent based on anion-cation pair effect and application thereof |
| CN114316924B (en) * | 2020-10-10 | 2023-09-15 | 中国石油化工股份有限公司 | Waterproof locking agent based on anion-cation pair effect and application thereof |
| CN115725285A (en) * | 2021-08-27 | 2023-03-03 | 中国石油天然气股份有限公司 | Thickened oil viscosity reduction type workover fluid and preparation method thereof |
| CN114958329A (en) * | 2022-06-25 | 2022-08-30 | 成都劳恩普斯科技有限公司 | Super-heavy oil viscosity reducer for super-high salinity |
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| Publication number | Publication date |
|---|---|
| CN106967404B (en) | 2019-10-15 |
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