CN107446563A - A kind of application of viscous crude activator - Google Patents
A kind of application of viscous crude activator Download PDFInfo
- Publication number
- CN107446563A CN107446563A CN201710659447.3A CN201710659447A CN107446563A CN 107446563 A CN107446563 A CN 107446563A CN 201710659447 A CN201710659447 A CN 201710659447A CN 107446563 A CN107446563 A CN 107446563A
- Authority
- CN
- China
- Prior art keywords
- polymer
- oil
- formula
- viscosity
- displacement system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C09K8/588—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 polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
The invention discloses a kind of application of viscous crude activator.The viscous crude activator is activation aqueous polymer of the structural formula as shown in formula (1), in formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y is 0.20~0.24, and x, z and n are 0.001~0.01；P is the natural number between 2~9.The activation aqueous polymer has thickening and reducing viscosity by emulsifying effect simultaneously, can be used as displacing agent and thinner simultaneously, realize two doses of one.Activated water oil displacement system of the present invention can increase aqueous viscosity, with displacement function, can be with emulsion dispersion crude oil, increase mixed phase flow, and it is scattered after crude oil with not in contact with crude oil continue to act on, aqueous phase " persistent ", constantly starts more crude oil both with mixing oil phase or being acted on fresh oil simultaneously.Activated water oil displacement system of the present invention has good profile control ability, can be used as profile control agent, and it is scattered after oil emulsion congenital there is the effect of depth transfer drive.
Description
Technical field
The present invention relates to a kind of application of viscous crude activator, belong to oil field development field.
Background technology
For viscous crude because colloid and asphalt content are higher, viscosity is big, and production ratio ordinary crude oils are much more difficult.At present, viscous crude is normal
The methods of production technique mainly includes heating, viscosity reducing, dilution viscosity reduction, hydrothermal cracking viscosity reduction, microorganism viscosity reduction and chemical viscosity reduction is advised,
Its principle be respectively by raising temperature, light crude oil isomorphism mixes, high-temperature steam catalytic pyrolysis, microbial degradation and chemical agent
Thinner etc. acts on, and viscosity of thickened oil, enhancing mobility is reduced, so as to realize that viscous crude is effectively exploited.
However, current the Technology of Heavy Oil Recovery has some limitations to varying degrees.Heating, viscosity reducing (thermal recovery)
Method complex process, energy consumption are big, the problems such as sand production in oil, has channeling and cost for oil production are high be present.Meanwhile the surface condition and oil of thermal recovery
Tibetan condition must be by the strict limitation of thermal recovery screening criteria, as that should not use thermal recovery if the heavy crude reservoir of depth relatively depth or thinner thickness
Method.Dilution method need to consume thin oil resource, and dilute crude oil reserve is limited, and yield is in downward trend, and necessarily facing will be without dilute
The scene that oil can be mixed.Hydrothermal cracking viscosity reduction method require catalyst should be liquid phase or nanometer grade water-soluble suspended substance, while must have compared with
Strong temperature tolerance and substantially harmless to human body, environment, this causes catalytic pyrolysis viscosity reduction production technique to be difficult in the short term
It is widely applied and applies.Microorganism viscosity reduction method is limited in that microorganism temperature is higher, salinity is larger, heavy metal ion
It is easy to be destroyed under the higher reservoir condition of content, surfactant caused by microorganism and biopolymer cause in itself
The danger of precipitation, and the condition for cultivating microorganism is not easy to hold.Chemical viscosity reduction refers to add certain chemical drugs in viscous crude
Agent, the method for reducing viscosity of crude is reached by the effect of chemical agent.It is suitable to any crude oil at present, in any condition can
The chemical agent of viscosity reduction not yet finds, so, different crude oil properties and different oil well production situations can only be directed to, takes phase
The chemical viscosity reduction measure answered.Conventional viscosity reducing process has the viscosity reduction technology for adding oil-soluble viscosity reducer, and adds the viscosity reduction skill of emulsifying agent
Art.Although the formula of emulsifying pour depressor is a lot, more problem is still suffered from, for example, Produced Liquid sewage disposal difficulty is big, and to viscous crude
Selectivity it is all very strong, this is due to that viscous crude composition has very big difference.How viscous crude composition influences reducing viscosity by emulsifying effect, breast
Change the structure of thinner with the relation of its performance as how.At present, the breast that can be used under the conditions of high temperature and high salinity reservoirs
It is also few to change thinner, though there are some document reports, but mostly cost is higher.
With deepening continuously for oil field development, depend merely on conventional viscosity reduction technology and be extremely difficult to stratum viscous crude entirety viscosity reduction and carried
The purpose of high oil field overall efficiency.Therefore, go into overdrive research establish in viscous crude conventional chemical viscosity reduction technical foundation with
The adaptable unconventional chemical viscosity reduction technology of viscous crude of Development of Viscous Crude Oil mode has important practical significance.
The content of the invention
It is an object of the invention to provide a kind of viscous crude activator, i.e. viscous crude activated polymer is used as drop again as displacing agent
Stick, the viscous crude activated polymer can improve oil recovery rate.
The invention provides a kind of application for activating aqueous polymer in as polymer flooding agent and/or thinner.
Shown in the structural formula such as formula (1) of the activation aqueous polymer；
In formula (1), x, y, z, m and n are respectively mass fraction of the corresponding segment in the activation aqueous polymer, and m is
0.75~0.85, y are 0.20~0.24, and x, m and n are 0.001~0.01；
M preferably 0.8, y preferably 0.2, x preferably 0.005, z preferably 0.003, n preferably 0.002.
P is the natural number between 2~9.
The activation aqueous polymer can be prepared as follows：
Under inert atmosphere, initiator presence and alkalescence condition, acrylamide, function monomer I, function monomer II and work(
Energy monomer III obtains the activation aqueous polymer through Raolical polymerizable；
Shown in the structural formula such as formula (2) of the function monomer I；
In formula (2), p is the natural number between 2~9；
Shown in the structural formula such as formula (3) of the function monomer II；
Shown in the structural formula such as formula (4) of the function monomer III；
In above-mentioned preparation method, the preparation method is carried out as steps described below：
The acrylamide, the function monomer I, the function monomer II and the function monomer III are added to water
In obtain reaction solution, adjust the pH value of the reaction solution, be then passed through nitrogen into the reaction solution；Ice salt bath is recycled to reduce
The temperature of the reaction solution, the initiator is added afterwards and carries out the Raolical polymerizable；The radical polymerization is anti-
Answer liberated heat to raise the temperature of reaction system, continue reaction 2~6 after the temperature of the reaction system peaks
Hour.
In above-mentioned preparation method, regulate and control pH value to 7~11 using sodium carbonate.
In above-mentioned preparation method, the temperature of the reaction solution is set to be reduced to 6~15 DEG C using the ice salt bath；
The maximum temperature that the reaction system reaches is 25~40 DEG C.
In above-mentioned preparation method, the function monomer I, the function monomer II and the function monomer III quality
Addition is respectively 0.02~0.2%, 0.02~0.4% and the 0.01~0.5% of the acrylamide quality addition, specifically
Can be respectively 0.04%, 0.04% and 0.03%；
In the system of the Raolical polymerizable, the total mass concentration of reaction monomers is 25~30%, the monomer
Total mass concentration refers to the acrylamide, the function monomer I, the function monomer II and the function monomer III's
Summation.
In above-mentioned preparation method, the initiator be ammonium persulfate, potassium peroxydisulfate, sodium hydrogensulfite, sodium thiosulfate,
The mixture of azo-bis-isobutyrate hydrochloride and the isobutyl imidazoline hydrochloride of azo two；
The ammonium persulfate, the potassium peroxydisulfate, the sodium hydrogensulfite, the sodium thiosulfate, the azo two are different
The quality addition of Butanimidamide, monohydrochloride and the isobutyl imidazoline hydrochloride of the azo two is respectively that the acrylamide quality adds
0.001~0.0045%, 0.001~0.005%, 0.001~0.006%, 0.001~0.005%, the 0.001 of amount~
0.006% and 0.001~0.004%, can be respectively specifically 0.002%, 0.002%, 0.003%, 0.002%, 0.003% and
0.002%；
In the system of the Raolical polymerizable, the mass-volume concentration of the initiator is 45~60mg/L.
In above-mentioned preparation method, the function monomer I is prepared according to the method comprised the following steps：
Double (N, N- the dimethyl) -2- propyl alcohol of (1) 1,3- obtain intermediate product with brominated alkanes through quaterisation；
The carbon number of the brominated alkanes is 2~9；
(2) in the basic conditions, the intermediate product produces the function monomer I with acryloyl chloride through esterification.
In above-mentioned preparation method, in step (1), the temperature of the quaterisation is 65~70 DEG C, the time is 12~
48 hours, the solvent used is ethanol.
In above-mentioned preparation method, in step (2), the acryloyl chloride is slowly added dropwise under ice-water bath；
The alkalescence condition is regulated and controled to obtain by triethylamine；
Hydroquinones and dimethylamino naphthyridine are additionally added in reaction system.
Activation aqueous polymer of the present invention has thickening and reducing viscosity by emulsifying effect simultaneously, can be used as displacing agent and drop simultaneously
Stick, realize two doses of one.
Activated water oil displacement system (aqueous solution of the activation aqueous polymer) of the present invention can increase aqueous viscosity, have displacement
Function, mixed phase flow can be increased with emulsion dispersion crude oil, and it is scattered after crude oil with not in contact with crude oil continue to act on,
Aqueous phase " persistent ", constantly starts more crude oil both with mixing oil phase or being acted on fresh oil simultaneously.
Activated water oil displacement system of the present invention has relatively low interfacial tension, has certain washing oil ability.
Activated water oil displacement system of the present invention has good profile control ability, can be used as profile control agent, and it is scattered after breast
Carburetion is congenital to have the effect of depth transfer drive.
When the concentration of activated water oil displacement system of the present invention is 400~3000mg/L, range of viscosities is 20~40mPa
S, shear viscosity retention rate are that 50~80%, 90 days aged viscosity retention rates are 40~60%, have preferable anti-salt property, ore deposit
For change degree between 10000~20000mg/L, activated water oil displacement system viscosity B coefficent is little.
When the concentration of activated water oil displacement system of the present invention is 400~3000mg/L, the profit of viscous crude activated polymer
Interfacial tension is 0.1~1 × 10-1MN/m, 1000mPas viscous crude is less than for viscosity, and viscosity break ratio is 80~95%.Viscous crude
Profit volume ratio ＜ 9 between activated polymer/viscous crude：1, essentially form oil-in-water emulsion.
Activated water oil displacement system of the present invention is applied to the oilfield reservoir that Reservoir Crude Oil viscosity is 1~1500mPas,
0.1~10D of permeability grade, it can carry out in accordance with the following steps during use：
While starting to exploit in oil field or when waterflooding development moisture content is 0~80%, the activation water drive oil body is injected
System, take injection pump supercharging mode to inject, be specially：The activated polymer dry powder is quickly dissolved into preparation with water filling first
Into high concentration mother liquor, then mother liquor is diluted to the activated water oil displacement system of aimed concn, then is pressurized and incited somebody to action by injection pump
The activated water oil displacement system is injected into purpose oil reservoir according to setting individual well diurnal injection from injection well.
Wherein, the concentration of mother liquor is 4000~5000mg/L, and aimed concn is 400~3000mg/L, such as 400~800mg/
L。
Individual well diurnal injection is 200~3000m3。
With compared with cost general polymer and high adhesive aggregation compound, recovery ratio 10~20% can be improved.
Brief description of the drawings
The nuclear-magnetism structural characterization collection of illustrative plates that Fig. 1 is function monomer I.
Fig. 2 is that the nuclear-magnetism of activated polymer characterizes collection of illustrative plates.
Fig. 3 is the IR Characterization collection of illustrative plates of activated polymer.
Fig. 4 is the viscosity and concentration curve of activated water oil displacement system.
Fig. 5 is the linearity curve steady in a long-term of activated water oil displacement system
Fig. 6 is the oil water interfacial tension of activated water oil displacement system.
Fig. 7 is activated polymer emulsified crude oil microphoto.
Fig. 8 is viscosity reducing effect (viscosity test data of the various concentrations activated polymer to viscous crude：It is relatively stable to record mixed phase
Viscosity number).
Embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material used, reagent etc., unless otherwise specified, are commercially obtained in following embodiments.
Embodiment 1,
1st, the preparation of activated polymer
Activated polymer shown in formula (1) is prepared especially by following methods：
Function monomer I is prepared by following step first：
By the ethanol of double (N, N- the dimethyl) -2- propyl alcohol of 14.6g (0.1mol) 1,3- and 42.5g (0.22mol) bromooctane
Solution loads 250ml three-necked flasks, magnetic agitation, the reflux condensation mode under the conditions of 65~70 DEG C, reacts 24h.50 DEG C of vacuum revolvings
Solvent is removed, adds proper amount of acetone to dissolve by heating, separating out white solid with ether after cooling obtains product I.Acetone-diethyl ether recrystallization 3
It is secondary, obtain white solid, yield more than 95%.26.6g (0.05mol) products I anhydrous chloroform soln is contained into 250ml tri-
Mouth bottle, is added dropwise the chloroform soln of 6.06g (0.06mol) triethylamine, and adds a small amount of hydroquinones and dimethylamino naphthyridine
(DMAP), stir, 5.43g (0.06mol) acryloyl chloride is slowly added dropwise under ice-water bath.Ambient temperature overnight, then stir 48 at 40 DEG C
Hour.Normal-temperature vacuum revolving removes solvent, adds acetone solution, is filtered to remove insoluble matter, and ether is added into filtrate and separates out solid.
Recrystallized repeatedly three times with the mixed solvent of acetone/diethyl ether, obtain white function monomer I14.6g, yield 49.8%.
Nuclear-magnetism structural characterization (Fig. 1) is carried out to function monomer I：1H NMR (400MHz, CDCl3)：δ 0.87 (6H, t ,-CH2-
CH3), 1.26-1.34 (20H, m ,-(CH2)5-), 1.74-1.80 (4H, m ,-N-CH2-CH2), 3.42-3.50 (12H, d, N-
(CH3)2), 3.56 (4H, m, N-CH2-), 4.63-4.69 (2H, m, N-CH2- CH), 4.87 (2H, d, N-CH2- CH), 5.99 (1H,
D, CH2=CH-), 6.16-6.26 (1H, q, CH2=CH-), 6.37 (1H, m, O-CH-), 6.89-6.93 (1H, d, CH2=
CH-)。
Then activated polymer is prepared according to following steps：
Acrylamide, function monomer I, function monomer II, function monomer III are added into reaction according to polymerisation formula of liquid
In kettle, stirring is complete to dissolving, wherein, function monomer I, function monomer II and function monomer III inventorys are respectively acryloyl
0.04wt%, 0.04wt% and 0.03wt% of amine, reaction system total amount of monomer mass concentration are 25wt%.Using sodium carbonate
The pH value for adjusting reaction solution is 10, then leads to nitrogen 60min, to remove the oxygen in reaction system.Will be anti-using ice salt bath
Answer system temperature to be down to 6~15 DEG C, then add initiation system under nitrogen protection, initiator system is ammonium persulfate, over cure
The mixing of sour potassium, sodium hydrogensulfite, sodium thiosulfate, azo-bis-isobutyrate hydrochloride and the isobutyl imidazoline hydrochloride of azo two
Thing, the quality of every kind of component are 0.002%, 0.002%, 0.003%, 0.002%, 0.003% and of the quality of acrylamide
0.002%.Because reaction heat is constantly released, cause temperature of reaction system to raise, treat that system temperature peaks (25~40
DEG C) after continue react 3h.After reaction terminates, jelly in reactor is granulated, dried, sieved, obtains activated polymer
Oil displacement agent granular product.
The nuclear-magnetism of the preparation-obtained activated polymer of the present embodiment characterize collection of illustrative plates and IR Characterization collection of illustrative plates respectively such as Fig. 2 and
Shown in Fig. 3, it can be seen that the structure of prepared polymer is correct.
Shown in the structural formula such as formula (1) of the preparation-obtained activated polymer of the present embodiment, wherein, m 0.8, y 0.2,
X is 0.005, m 0.003, n 0.002.
2nd, the application performance of activated water oil displacement system
According to《SY/T 5862-2008 Polymer Used For Oil Displacement technical requirements》Standard preparation solution, with water filling by the work
Quickly dissolving is configured to high concentration mother liquor (5000mg/L) to fluidized polymer dry powder, and then mother liquor is diluted to described in aimed concn
Activated water oil displacement system.It is that mineralized water is simulated in Bohai Sea oil field with water filling, ion composition is Na++K+3091.96、Ca2+
276.17、Mg2+158.68、CO3 2-14.21、HCO3 -311.48、SO4 2-85.29、Cl-5436.34.Crude oil described in experiment is Bohai Sea
Certain extra large crude oil, stratum viscosity 400mPa.s (65 DEG C).
(1) dense relation is glued
Carry out shearing front and rear viscosity test using BROOKFIELD DV-III.Sheared using Waring agitators, shearing mark
Standard be shear strength be 1 grade, shear time 20s.Setting speed is 6r/min (7.34s-1), carry out apparent viscosity test.Survey
Try temperature：65℃.Obtain the viscous dense curve (Fig. 4) of activated water oil displacement system.1500mg/L activated water oil displacement system is prepared, is used
Waring agitators stir 20s under I shelves, by activated water oil displacement system；In 65 DEG C and shearing digit rate 7.34s-1Lower measure stirring
Apparent viscosity afterwards；Load activated water oil displacement system in conical flask；After logical nitrogen deoxygenation, with plug seal, and 65 DEG C are put into
In insulating box, different time points detect the viscosity (Fig. 5) of activated water oil displacement system.As seen from the figure, concentration 1500mg/L when, glue
28mPa.s, viscosity 16.8mPa.s after shearing are spent, shear viscosity retention rate is 60%.Viscosity 13.5mPa.s after aging in 90 days, always
It is 48.2% to change viscosity retention ratio.
(2) oil water interfacial tension
Activated polymer can be such that oil water interfacial tension substantially reduces, as shown in fig. 6,10-1MN/m or so.Activated polymerization
Thing reduces oil water interfacial tension ability and shows that it has preferable interfacial activity.
(3) dispersive property
Using fluorescence microscope various concentrations activated polymer and small molecule thinner (sodium alkyl sulfonate) with it is thick
Dispersing morphology after oil phase interaction, oil-water ratio：1：1, emulsified crude oil microphoto is as shown in Figure 7.
As shown in Figure 7, Small molecular surfactant is at low concentrations, very weak to the emulsifying capacity of viscous crude.Dropped with small molecule
Stick is compared, the as little as 400mg/L obvious emulsion dispersion viscous crude of activated polymer solution can.When concentration is higher, oil droplet
Particle diameter after emulsion dispersion is smaller.The size distribution ranges of differential dephasing are very wide, from hundreds of nanometers (it is observed that lower limit) to
More than ten microns, a small number of microfacies sizes are bigger.
(4) viscosity-reducing performance
The activated polymer solution of various concentrations is configured, viscous crude to be measured and activated polymer solution are pressed into oil-water ratio 1:1 is mixed
Close, 65 DEG C of constant temperature 1h.Mechanical agitation 1min (600r/min).Under the conditions of 65 DEG C, the BROOKFIELD DV-III of use enter rapidly
Row viscosity test, as a result as shown in Figure 8.
As seen from Figure 8, activated polymer has good viscosity reducing effect, as little as 500mg/L to different viscosities viscous crude
Activated polymer solution to reducing thick oil viscosity rate more than 50%.When concentration is 1000mg/L, viscosity break ratio is more than 90%.But activation is poly-
When compound concentration increases to 1500mg/L, viscosity break ratio is declined slightly on the contrary.Activated polymer is emulsification to the essence of reducing thick oil viscosity
Viscosity reduction.
3rd, activate water drive oil and improve recovery efficiency technique Oil Field example
Recovery efficiency technique field test is improved in certain Chinese inland oil field of selection as subject oil field, development activation water drive oil,
Comprise the following steps that：With with water filling, by activated polymer dry powder, quickly dissolving is configured to high concentration mother liquor first, then by mother liquor
The activated water oil displacement system of aimed concn is diluted to, then is pressurized by injection pump by activated water oil displacement system according to setting individual well day
Injection rate, purpose oil reservoir is injected into from injection well.Individual-well injection rate is 2000m3/ d, polymer concentration are 400~800mg/L.
Test block condition such as table 1.
Table 1 tests block condition
Viscous crude activated polymer of the present invention obtains obvious oil increasing effect in experiment oil field, wherein：Increase oil：Monthly production before injecting
Oily 240 sides；After injecting, the side of 10 month oil-producing 1200 in 2011, reach production peak, by October 14th, 2013, add up
Increase oily 7982 sides, ton agent increases oily 106 sides.
Claims (9)
1. application of the polymer in as polymer flooding agent and/or thinner shown in formula (1)；
In formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y
For 0.20~0.24, x, z and n are 0.001~0.01；
P is the natural number between 2~9.
2. application of the polymer in as polymer profile control agent shown in formula (1)；
In formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y
For 0.20~0.24, x, z and n are 0.001~0.01；
P is the natural number between 2~9.
3. a kind of polymer flooding agent, its active component is polymer shown in formula (1)；
In formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y
For 0.20~0.24, x, z and n are 0.001~0.01；
P is the natural number between 2~9.
4. a kind of polymer viscosity reducer, its active component is polymer shown in formula (1)；
In formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y
For 0.20~0.24, x, z and n are 0.001~0.01；
P is the natural number between 2~9.
5. a kind of polymer profile control agent, its active component is polymer shown in formula (1)；
In formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y
For 0.20~0.24, x, z and n are 0.001~0.01；
P is the natural number between 2~9.
6. a kind of method for improving oil recovery rate, comprises the following steps：While oilfield exploitation or water drive Produced Liquid matter
When amount moisture content is 0~80%, oil displacement system is injected；
The oil displacement system is the aqueous solution of polymer shown in formula (1)；
In formula (1), x, y, z, m and n are respectively the mass fraction of corresponding segment in the polymer, and m is 0.75~0.85, y
For 0.20~0.24, x, z and n are 0.001~0.01；
P is the natural number between 2~9.
7. according to the method for claim 6, it is characterised in that：The Reservoir Crude Oil viscosity in the oil field is 1~1500mPa
S oilfield reservoir, 0.1~10D of permeability grade.
8. the method according to claim 6 or 7, it is characterised in that：The displacement of reservoir oil body is injected using injection pump supercharging mode
System, comprises the following steps that：
First with water filling by polymer formulation shown in the formula (1) into mother liquor, then mother liquor is diluted to the institute of aimed concn
Oil displacement system is stated, then is pressurized by injection pump and the oil displacement system is injected into purpose oil reservoir from injection well.
9. according to the method for claim 8, it is characterised in that：The concentration of the mother liquor is 4000~5000mg/L,
In the oil displacement system, the concentration of polymer is 400~3000mg/L shown in the formula (1).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659447.3A CN107446563A (en) | 2017-08-04 | 2017-08-04 | A kind of application of viscous crude activator |
| PCT/CN2018/075360 WO2019024476A1 (en) | 2017-08-04 | 2018-02-06 | Thickened oil activating agent and preparation method and use thereof |
| US16/743,828 US10941333B2 (en) | 2017-08-04 | 2020-01-15 | Heavy oil activator and preparation method and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659447.3A CN107446563A (en) | 2017-08-04 | 2017-08-04 | A kind of application of viscous crude activator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107446563A true CN107446563A (en) | 2017-12-08 |
Family
ID=60489994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659447.3A Pending CN107446563A (en) | 2017-08-04 | 2017-08-04 | A kind of application of viscous crude activator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107446563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024476A1 (en) * | 2017-08-04 | 2019-02-07 | 中国海洋石油集团有限公司 | Thickened oil activating agent and preparation method and use thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554360A (en) * | 2013-10-31 | 2014-02-05 | 西南石油大学 | Temperature-resistant salt-resistant amphiphilic copolymer as well as preparation method thereof |
| WO2015161124A1 (en) * | 2014-04-16 | 2015-10-22 | Board Of Regents, The University Of Texas System | Gemini epoxide surfactant compositions |
| CN106608945A (en) * | 2015-10-21 | 2017-05-03 | 中国石油化工股份有限公司 | Copolymerization association compound, preparation method and applications thereof, and drilling fluid |
-
2017
- 2017-08-04 CN CN201710659447.3A patent/CN107446563A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554360A (en) * | 2013-10-31 | 2014-02-05 | 西南石油大学 | Temperature-resistant salt-resistant amphiphilic copolymer as well as preparation method thereof |
| WO2015161124A1 (en) * | 2014-04-16 | 2015-10-22 | Board Of Regents, The University Of Texas System | Gemini epoxide surfactant compositions |
| CN106608945A (en) * | 2015-10-21 | 2017-05-03 | 中国石油化工股份有限公司 | Copolymerization association compound, preparation method and applications thereof, and drilling fluid |
Non-Patent Citations (2)
| Title |
|---|
| 徐晓慧: "两亲聚合物ICJN对原油的乳化与降黏作用研究", 《油田化学》 * |
| 杨光: "两亲聚合物功能单体对聚集及界面行为影响", 《西南石油大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024476A1 (en) * | 2017-08-04 | 2019-02-07 | 中国海洋石油集团有限公司 | Thickened oil activating agent and preparation method and use thereof |
| US10941333B2 (en) | 2017-08-04 | 2021-03-09 | China National Offshore Oil Corporation | Heavy oil activator and preparation method and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107383273B (en) | A kind of viscous crude activator and preparation method thereof | |
| WO2019024476A1 (en) | Thickened oil activating agent and preparation method and use thereof | |
| CN102603966B (en) | Cross-linked polymer microsphere for oil displacement of oilfield and preparation method for cross-linked polymer microsphere | |
| WO2017113773A1 (en) | Hydrophobic associated polymer and preparation method therefor | |
| CN110358008A (en) | A kind of 100 nanospheres and preparation method of temperature-tolerant anti-salt polyacrylamide class | |
| CN104178102B (en) | Cross-linkable high-temperature-resistant residue-free multi-component copolymerization type fracturing fluid and preparation method thereof | |
| CN110483687A (en) | Fracturing fluid thickener and preparation method thereof | |
| CN109666099B (en) | Core-shell polymer microsphere and preparation method thereof | |
| WO2013150203A1 (en) | New aqueous fracturing fluid composition and fracturing method implementing the fluid | |
| CN102352232B (en) | Temperature-resistant and salt-resistant polymer clean fracturing fluid thickening agent and preparation method thereof | |
| US11427748B2 (en) | Mussel bionic gel composition, self-repairing gel, profile control and water plugging agent, method for preparing self-repairing gel, and use | |
| US10947334B2 (en) | Anionic thermoviscosifying water-soluble polymers, preparation method and application thereof | |
| CN105238381B (en) | A kind of function composite lotion state polymer fracturing fluid and preparation method thereof | |
| CN105601804A (en) | Hydrophobic associated polymer and preparation method thereof | |
| CN106905947A (en) | A kind of displacement of reservoir oil fracturing fluid and preparation method and application | |
| CN109679639A (en) | A kind of heavy crude thinner and its preparation method and application | |
| CN106753315A (en) | A kind of temperature control type becomes mucic acid and preparation method thereof | |
| CN105601805A (en) | Hydrophobic associated polymer and preparation method thereof | |
| CN111465673A (en) | Method for preparing a composition comprising a water-soluble (co) polymer encapsulated in a shell and use of the composition in assisted oil and gas recovery | |
| CN111909306A (en) | Double-aqueous-phase PAM/AMPS nano microsphere latex as well as preparation method and application thereof | |
| CN104672408A (en) | Rigid-core-shell-structure water-soluble oil-displacing polymer and preparation method thereof | |
| CN110591023A (en) | Amphiphilic polymer containing capped polyether structure and preparation and application thereof | |
| CN107446563A (en) | A kind of application of viscous crude activator | |
| CN105601806A (en) | Hydrophobic associated polymer and preparation method thereof | |
| US3603397A (en) | Intrinsic mobility control in petroleum recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC research institute limited liability company Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Research Institute |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |
|
| RJ01 | Rejection of invention patent application after publication |