CN107502325A - Preparation method and application of high-temperature-resistant high-salt profile control and flooding agent - Google Patents
Preparation method and application of high-temperature-resistant high-salt profile control and flooding agent Download PDFInfo
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- CN107502325A CN107502325A CN201710594502.5A CN201710594502A CN107502325A CN 107502325 A CN107502325 A CN 107502325A CN 201710594502 A CN201710594502 A CN 201710594502A CN 107502325 A CN107502325 A CN 107502325A
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- profile control
- control agent
- high temperature
- salt
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 148
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 131
- 229920000642 polymer Polymers 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003381 stabilizer Substances 0.000 claims abstract description 17
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 17
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- JRUSUOGPILMFBM-UHFFFAOYSA-N n,n-dioctylprop-2-enamide Chemical compound CCCCCCCCN(C(=O)C=C)CCCCCCCC JRUSUOGPILMFBM-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 8
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 8
- 235000010265 sodium sulphite Nutrition 0.000 claims description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 7
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- 239000007832 Na2SO4 Substances 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 6
- 239000001110 calcium chloride Substances 0.000 claims description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 6
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- RGHHSNMVTDWUBI-UHFFFAOYSA-N 4-hydroxybenzaldehyde Chemical compound OC1=CC=C(C=O)C=C1 RGHHSNMVTDWUBI-UHFFFAOYSA-N 0.000 claims description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 229940106691 bisphenol a Drugs 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000008398 formation water Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 238000012360 testing method Methods 0.000 description 9
- 239000006004 Quartz sand Substances 0.000 description 8
- 239000012267 brine Substances 0.000 description 8
- 239000011435 rock Substances 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 8
- -1 propylene acid amides Chemical class 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 6
- USNWAMPROKAEIT-UHFFFAOYSA-N [Na].C(C=C)(=O)O Chemical compound [Na].C(C=C)(=O)O USNWAMPROKAEIT-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000012760 heat stabilizer Substances 0.000 description 4
- 238000011835 investigation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000012430 stability testing Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 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 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- ZKYCLDTVJCJYIB-UHFFFAOYSA-N 2-methylidenedecanamide Chemical compound CCCCCCCCC(=C)C(N)=O ZKYCLDTVJCJYIB-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- ZDWZXBJFITXZBL-UHFFFAOYSA-N S(=O)(=O)(O)C=CC1=CC=CC=C1.[Na] Chemical compound S(=O)(=O)(O)C=CC1=CC=CC=C1.[Na] ZDWZXBJFITXZBL-UHFFFAOYSA-N 0.000 description 1
- 240000000203 Salix gracilistyla Species 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 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 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- 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
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a preparation method and application of a high-temperature-resistant high-salt profile control and flooding agent.the high temperature resistant high salt profile control agent comprises, by total weight of 100 parts, 0.5-0.6 part of temperature resistant salt-resistant polymer, 0.4-0.6 part of cross-linking agent, 0.3-0.5 part of stabilizing agent and the balance of high salinity formation water, and can be suitable for deep fluid profile control of high water-bearing oil fields and can resist high salinity of 5.0 multiplied by 104mg/L‑15×104the gelling time of the oil reservoir of mg/L is controllable from 8h to 24h, the gelling viscosity is high, and the apparent viscosity of the gel reaches 1.0 × 10 under the condition of 120 DEG C4mPa.s‑2.5×104And mPa.s, the gel viscosity retention rate of the high-salinity oil deposit is more than 80% through continuous 3-month thermal stability inspection, deep liquid flow steering can be realized, a high permeable layer can be effectively blocked, and the purpose of blocking the high permeable layer of the high-salinity oil deposit is achieved.
Description
Technical field
The invention belongs to oil reservoir production technique field, is related to preparation method and the application of a kind of resisting high temperature, high salt profile control agent.
Background technology
Inject water monolayer caused by waterflooding development oil reservoir long-term injecting water to advance by leaps and bounds, interlayer contradiction, interlayer interference are extremely serious.
Profile control and water plugging technology is that solve the circulation of waterflooding development oil-field flooding inefficient, improves the important of water-injection efficiency and ultimate recovery
Means.Deep rock tunneling profile control agent is one of important composition in profile control and water plugging technology, but the deep liquid of field application at present
Stream turns to profile control agent non-refractory high salt, and the gel viscosity of formation is low, and the term of validity is short, plugging effect is poor, it is impossible to meets that water drive is opened
Send out the requirement of high temperature and high salt oil deposit transfer drive.In view of above-mentioned technical barrier existing for current deep rock tunneling profile control agent, carries out
The research work of substantial amounts of resisting high temperature, high salt profile control agent.
Improving recovery ratio turns into the emphasis research direction of High water cut old filed exploitation.Organogel class profile control agent is in old filed
There is extremely important effect in steady oil control water, but the problem faced how is improved under the severe reservoir condition such as high temperature and high salt
Recovery ratio.For high temperature and high salt oil deposit, because general polymerization thing temperature-resistant anti-salt performance is poor, the apparent viscosity of polymer solution is shown as
Relatively low, heat endurance is poor, and the term of validity of gel is short, and profile modification is poor after measure.
The content of the invention
In order to solve profile control agent heat endurance and plugging effect etc. under the severe reservoir condition such as high water cut oil field high temperature and high salt,
It is an object of the invention to provide a kind of preparation method of resisting high temperature, high salt profile control agent suitable for high water cut oil field and application.Should
Profile control agent possesses heat and salt resistance and long-term thermal stability, can adapt in the demand of high temperature and high salt oil deposit transfer drive.
The purpose of the present invention is achieved by the following technical programs：
The present invention provides a kind of resisting high temperature, high salt profile control agent, is counted using total weight parts as 100 parts, the resisting high temperature, high salt profile control agent
Raw material components include：
Heat Resistant and Salt Tolerant Polymer 0.5-0.6 parts
Crosslinking agent 0.4-0.6 parts
Stabilizer 0.3-0.5 parts
And the highly mineralized formation brines of surplus.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the Heat Resistant and Salt Tolerant Polymer can include acrylamide, propylene
The copolymer that two or more material copolymerizations in sour sodium, SSS and N, N- dioctyl acrylamide etc. are formed.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the Heat Resistant and Salt Tolerant Polymer be acrylamide, PAA,
Four kinds of raw materials of SSS and N, N- dioctyl acrylamide are (19-20) according to mass ratio：(2-3)：(2-5)：
(0.02-0.05) be copolymerized the copolymer of formation.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferred to use acrylamide, PAA, SSS and N, N- bis-
Four kinds of raw materials of octyl acrylamide are copolymerized, wherein, the addition of hydrophobic monomer N, N- dioctyl acrylamide is copolymerized, N,
N- dioctyl acrylamides have two octyl substituents, the increase of one side steric hindrance, reduce the high score under the conditions of high salinity
Amount of crimp occurs for subchain；Another side inhibits the hydrolysis under amide groups hot conditions to a certain extent, improves the high ore deposit of high temperature
The heat endurance of gel under the conditions of change degree, its mutual synergy, make the viscosity of the Heat Resistant and Salt Tolerant Polymer solution of synthesis
And the initial viscosity of formation gel significantly increases.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the Heat Resistant and Salt Tolerant Polymer copolymerization process is：
Under the conditions of 10-15 DEG C, the raw material mixing and water adding for preparing Heat Resistant and Salt Tolerant Polymer is obtained into mixed liquor, it is molten to mixing
Nitrogen 10-15min is passed through in liquid, tetramethylethylenediamine, ammonium persulfate and sodium sulfite is then added, continues to be passed through nitrogen 3-
5min, then granulating and drying and mesh screen of looking over so as to check, obtain the Heat Resistant and Salt Tolerant Polymer；
Wherein, the mixed liquor of every 100 parts by weight includes the tetramethylethylenediamine of 0.1-0.2 parts, the mistake of 0.05-0.1 parts
Ammonium sulfate, the sodium sulfite of 0.025-0.05 parts, the raw material of Heat Resistant and Salt Tolerant Polymer and the water of surplus of 24.02-27.05 parts.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the mesh screen that look over so as to check is using passing sequentially through 20 mesh and 60 mesh
Mesh screen, the polymer that 60 mesh mesh screens fail to filter out are the Heat Resistant and Salt Tolerant Polymer.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the crosslinking agent can include phenolic resin, parahydroxyben-zaldehyde
With one or more combinations in salicylide etc..
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the crosslinking agent is salicylide.Crosslinking agent preferably uses bigcatkin willow
Aldehyde, salicylide carry benzene ring structure, and its gel heat endurance formed can increase substantially.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the stabilizer can include bisphenol-A, sodium thiosulfate and more
One or more combinations in polyphosphate sodium etc..It is bivalent ions very big in the presence of the viscosity influence to polymer solution, therefore,
The effect of divalent calcium magnesium ion in part in the water of stratum can be complexed by adding sodium polyphosphate, improve the viscosity of profile control agent.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that the stabilizer is sodium thiosulfate and sodium polyphosphate with matter
Measure ratio 1：The mixture of (0.3-0.5) compounding.
In above-mentioned resisting high temperature, high salt profile control agent, it is preferable that counted using the weight of the highly mineralized formation brines as 100%, it is described
Highly mineralized formation brines includes 10% NaCl, 1% CaCl2, 1% MgCl2, 0.6% Na2SO4With the deionization of surplus
Water, the present invention in formation water salinity composition be Oil Field get water sample chemical examination test result, can effectively meet oil reservoir makes
Use condition.Dissolution time of the Heat Resistant and Salt Tolerant Polymer of the present invention in the highly mineralized formation brines<120min, it disclosure satisfy that existing
Field construction demand, obtained resisting high temperature, high salt profile control agent have preferable resistance to high salt ability.
The present invention also provides the preparation method of above-mentioned resisting high temperature, high salt profile control agent, and it comprises the following steps：
Heat Resistant and Salt Tolerant Polymer, crosslinking agent and stabilizer is added into concentrated water to be mixed evenly to obtain the resistance to height
Warm high salt profile control agent.
It is 5.0 × 10 that the present invention, which also provides above-mentioned resisting high temperature, high salt profile control agent in salinity,4mg/L-15×104Mg/L oil
Hide the application in profile control and water plugging.
Resisting high temperature, high salt profile control agent provided by the invention can be applied to the deep flooding fluid transfer drive of high water cut oil field, can be resistant to
High salinity 5.0 × 104mg/L-15×104Mg/L oil reservoir, gelation time 8h-24h is controllable, high into adhesiveness, 120 DEG C of conditions
Under, gel apparent viscosity is up to 1.0 × 104mPa.s-2.5×104MPa.s, by continuous 3 selenothermy study on the stability, its gel glues
Degree retention rate reaches more than 80%, it is possible to achieve deep rock tunneling, effectively blocks high permeability zone, reaches closure high salinity oil
Hide high permeability zone purpose.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
The instrument that gel viscosity is tested in embodiment is the rotation viscometers of Brookfield DV- III, No. 64 rotors, is sheared
Speed 7.34s-1。
Embodiment 1
The present embodiment provides a kind of resisting high temperature, high salt profile control agent suitable for high water cut oil field, the resisting high temperature, high salt profile control agent
Raw material components include：
Counted using the weight of the highly mineralized formation brines as 100%, the highly mineralized formation brines include 10% NaCl,
1% CaCl2, 1% MgCl2, 0.6% Na2SO4With the deionized water of surplus.
The preparation method of the present embodiment high temperature resistant salt-resistant polymer is：Under the conditions of 12 DEG C, filled in tool in wide-mouth bottle successively
Add 75.805 parts by weight of deionized water, 20 parts by weight propylene acid amides, 2 parts by weight of acrylic acid sodium, 2 parts by weight of styrene sulfonic acid
Sodium, 0.02 parts by weight N, N- dioctyl acrylamide, is passed through nitrogen 15min, then add 0.05 parts by weight ammonium persulfate,
0.025 parts by weight sodium sulfite and 0.1 parts by weight tetramethylethylenediamine, continue to seal after being passed through nitrogen 5min, wait to be polymerized anti-
It is granulated after the completion of answering, mesh screen progress sub-sieve that is dry and crossing 20 mesh and 60 mesh respectively, what 60 mesh mesh screens can not filter out gathers
Compound is the Heat Resistant and Salt Tolerant Polymer of the present embodiment.
Dissolubility test is carried out to the Heat Resistant and Salt Tolerant Polymer, to the high-salinity brine (10%wtNaCl+ equipped with 100g
1%wtCaCl2+ 1%wtMgCl2+ 0.6%wtNa2SO4) beaker in add 0.5g above-mentioned Heat Resistant and Salt Tolerant Polymer, stirring
After find the Heat Resistant and Salt Tolerant Polymer solution stable homogeneous, no fine particle is present, and the time being now completely dissolved is 90min.
This implementation also provides the preparation method of above-mentioned resisting high temperature, high salt profile control agent, according to above-mentioned resisting high temperature, high salt profile control agent
The dosage of raw material components, high-salinity brine, Heat Resistant and Salt Tolerant Polymer, salicylide and stabilizer are sequentially added into beaker, mixed
The resisting high temperature, high salt profile control agent is obtained after closing uniformly.
Heat stability testing is carried out to resisting high temperature, high salt profile control agent prepared by this implementation：Resisting high temperature, high salt profile control agent is loaded
Multiple 60mL stainless steels ageing cans and being statically placed in are mixed up in temperature (120 DEG C) drying box, take out a sample at regular intervals,
The apparent viscosity of gel is observed, to evaluate the thermal stability of gel.
The preliminary plastic of resisting high temperature, high salt profile control agent of the present embodiment, the apparent viscosity measured are after experiment is found 24 hours
12000mPas, carry out thermal stability investigation within continuous 3 months, experimental result is as shown in table 1.
The profile control agent thermal stability of table 1
Note：Common organogel profile control agent is the common of the mass fractions such as the resisting high temperature, high salt profile control agent with the present embodiment
What polymer, crosslinking agent and heat stabilizer were formulated.Wherein, stabilizer is sodium thiosulfate and sodium polyphosphate proportioning is 1：
0.5。
From the experimental result of table 1, by continuous 3 selenothermy study on the stability, the resisting high temperature, high salt profile control agent of this implementation
First the viscosity retention ratio than common organogel profile control agent is respectively：81.5% and 45.2%, it follows that the present embodiment
Resisting high temperature, high salt profile control agent shows preferable thermal stability.
It is 5.0 × 10 that the present embodiment, which also provides above-mentioned resisting high temperature, high salt profile control agent in salinity,4mg/L-15×104Mg/L's
Application in reservoir profile water blockoff.
The quartz sand of 40-60 mesh is filled in diameter 2.5cm, length 60cm fill out sand tube, by the resistance to height of the present embodiment
Warm high salt profile control agent is injected separately into common organogel profile control agent and is filled with the basket of same particle size quartz sand, by rock
Heart pipe both ends seal, and are placed in constant temperature 72 hours in 120 DEG C of thermostatic drying chambers, make its plastic, then inject water and carry out displacement test,
Further investigate the resistance to erosion shut-off capacity of profile control agent, the envelope of the present embodiment resisting high temperature, high salt profile control agent and organogel profile control agent
Stifled rate is respectively 86.9%, 75.8%, compared to the resisting high temperature, high salt profile control agent closure of the common organogel profile control agent present invention
Rate improves 11.1%.
Embodiment 2
The present embodiment provides a kind of resisting high temperature, high salt profile control agent suitable for high water cut oil field, the resisting high temperature, high salt profile control agent
Raw material components include：
Counted using the weight of the highly mineralized formation brines as 100%, the highly mineralized formation brines include 10% NaCl,
1% CaCl2, 1% MgCl2, 0.6% Na2SO4With the deionized water of surplus.
The preparation method of the present embodiment high temperature resistant salt-resistant polymer is：Under the conditions of 12 DEG C, filled in tool in wide-mouth bottle successively
74.7 parts by weight of deionized water, 19 parts by weight propylene acid amides, 3 parts by weight of acrylic acid sodium, 3 parts by weight of styrene sodium sulfonates are added,
0.04 parts by weight N, N- dioctyl acrylamide, is passed through nitrogen 15min, then adds 0.07 parts by weight ammonium persulfate, 0.04 weight
Part sodium sulfite and 0.15 parts by weight tetramethylethylenediamine are measured, continues to seal after being passed through nitrogen 5min, waits polymerisation to complete
The mesh screen for being granulated, drying afterwards and cross 20 mesh and 60 mesh respectively carries out sub-sieve, and the polymer that 60 mesh mesh screens can not filter out is i.e.
For the Heat Resistant and Salt Tolerant Polymer of the present embodiment.
Dissolubility test is carried out to the Heat Resistant and Salt Tolerant Polymer, to the high-salinity brine (10%wtNaCl+ equipped with 100g
1%wtCaCl2+ 1%wtMgCl2+ 0.6%wtNa2SO4) beaker in add 0.5g above-mentioned Heat Resistant and Salt Tolerant Polymer, stirring
After find the Heat Resistant and Salt Tolerant Polymer solution stable homogeneous, no fine particle is present, and the time being now completely dissolved is 100min.
This implementation also provides the preparation method of above-mentioned resisting high temperature, high salt profile control agent, according to above-mentioned resisting high temperature, high salt profile control agent
The dosage of raw material components, high-salinity brine, Heat Resistant and Salt Tolerant Polymer, salicylide and stabilizer are sequentially added into beaker, mixed
The resisting high temperature, high salt profile control agent is obtained after closing uniformly.
Heat stability testing is carried out to resisting high temperature, high salt profile control agent prepared by this implementation：Resisting high temperature, high salt profile control agent is loaded
Multiple 60mL stainless steels ageing cans and being statically placed in are mixed up in temperature (120 DEG C) drying box, take out a sample at regular intervals,
The apparent viscosity of gel is observed, to evaluate the thermal stability of gel.
The preliminary plastic of resisting high temperature, high salt profile control agent of the present embodiment, the apparent viscosity measured are after experiment is found 24 hours
15000mPas, carry out thermal stability investigation within continuous 3 months, experimental result is as shown in table 2.
The profile control agent thermal stability of table 2
Note：Common organogel profile control agent is the common of the mass fractions such as the resisting high temperature, high salt profile control agent with the present embodiment
What polymer, crosslinking agent and heat stabilizer were formulated.Wherein, stabilizer is sodium thiosulfate and sodium polyphosphate proportioning is 1：
0.5。
From the experimental result of table 2, by continuous 3 selenothermy study on the stability, the resisting high temperature, high salt profile control agent of this implementation
First the viscosity retention ratio than common organogel profile control agent is respectively：82.3% and 44.8%, it follows that the present embodiment
Resisting high temperature, high salt profile control agent shows preferable thermal stability.
It is 5.0 × 10 that the present embodiment, which also provides above-mentioned resisting high temperature, high salt profile control agent in salinity,4mg/L-15×104Mg/L's
Application in reservoir profile water blockoff.
The quartz sand of 40-60 mesh is filled in diameter 2.5cm, length 60cm fill out sand tube, by the resistance to height of the present embodiment
Warm high salt profile control agent is injected separately into common organogel profile control agent and is filled with the basket of same particle size quartz sand, by rock
Heart pipe both ends seal, and are placed in constant temperature 72 hours in 120 DEG C of thermostatic drying chambers, make its plastic, then inject water and carry out displacement test,
Further investigate the resistance to erosion shut-off capacity of profile control agent, the envelope of the present embodiment resisting high temperature, high salt profile control agent and organogel profile control agent
Stifled rate is respectively 89.5%, 75.2%, compared to the resisting high temperature, high salt profile control agent closure of the common organogel profile control agent present invention
Rate improves 14.3%.
Embodiment 3
The present embodiment provides a kind of resisting high temperature, high salt profile control agent suitable for high water cut oil field, the resisting high temperature, high salt profile control agent
Raw material components include：
Counted using the weight of the highly mineralized formation brines as 100%, the highly mineralized formation brines include 10% NaCl,
1% CaCl2, 1% MgCl2, 0.6% Na2SO4With the deionized water of surplus.
The preparation method of the present embodiment high temperature resistant salt-resistant polymer is：Under the conditions of 12 DEG C, filled in tool in wide-mouth bottle successively
72.64 parts by weight of deionized water, 20 parts by weight propylene acid amides, 3 parts by weight of acrylic acid sodium, 4 parts by weight of styrene sodium sulfonates are added,
0.04 parts by weight N, N- dioctyl acrylamide, is passed through nitrogen 15min, then adds 0.08 parts by weight ammonium persulfate, 0.04 weight
Part sodium sulfite and 0.2 parts by weight tetramethylethylenediamine are measured, continues to seal after being passed through nitrogen 5min, after the completion of wait polymerisation
The mesh screen for being granulated, drying and cross 20 mesh and 60 mesh respectively carries out sub-sieve, and the polymer that 60 mesh mesh screens can not filter out is
The Heat Resistant and Salt Tolerant Polymer of the present embodiment.
Dissolubility test is carried out to the Heat Resistant and Salt Tolerant Polymer, to the high-salinity brine (10%wtNaCl+ equipped with 100g
1%wtCaCl2+ 1%wtMgCl2+ 0.6%wtNa2SO4) beaker in add 0.6g above-mentioned Heat Resistant and Salt Tolerant Polymer, stirring
After find the Heat Resistant and Salt Tolerant Polymer solution stable homogeneous, no fine particle is present, and the time being now completely dissolved is 105min.
This implementation also provides the preparation method of above-mentioned resisting high temperature, high salt profile control agent, according to above-mentioned resisting high temperature, high salt profile control agent
The dosage of raw material components, high-salinity brine, Heat Resistant and Salt Tolerant Polymer, salicylide and stabilizer are sequentially added into beaker, mixed
The resisting high temperature, high salt profile control agent is obtained after closing uniformly.
Heat stability testing is carried out to resisting high temperature, high salt profile control agent prepared by this implementation：Resisting high temperature, high salt profile control agent is loaded
Multiple 60mL stainless steels ageing cans and being statically placed in are mixed up in temperature (120 DEG C) drying box, take out a sample at regular intervals,
The apparent viscosity of gel is observed, to evaluate the thermal stability of gel.
The preliminary plastic of resisting high temperature, high salt profile control agent of the present embodiment, the apparent viscosity measured are after experiment is found 24 hours
22500mPas, carry out thermal stability investigation within continuous 3 months, experimental result is as shown in table 3.
The profile control agent thermal stability of table 3
Note：Common organogel profile control agent is the common of the mass fractions such as the resisting high temperature, high salt profile control agent with the present embodiment
What polymer, crosslinking agent and heat stabilizer were formulated.Wherein, stabilizer is sodium thiosulfate and sodium polyphosphate proportioning is 1：
0.5。
From the experimental result of table 3, by continuous 3 selenothermy study on the stability, the resisting high temperature, high salt profile control agent of this implementation
First the viscosity retention ratio than common organogel profile control agent is respectively：84.2% and 45%, it follows that the present embodiment is resistance to
High temperature and high salt profile control agent shows preferable thermal stability.
It is 5.0 × 10 that the present embodiment, which also provides above-mentioned resisting high temperature, high salt profile control agent in salinity,4mg/L-15×104Mg/L's
Application in reservoir profile water blockoff.
The quartz sand of 40-60 mesh is filled in diameter 2.5cm, length 60cm fill out sand tube, by the resistance to height of the present embodiment
Warm high salt profile control agent is injected separately into common organogel profile control agent and is filled with the basket of same particle size quartz sand, by rock
Heart pipe both ends seal, and are placed in constant temperature 72 hours in 120 DEG C of thermostatic drying chambers, make its plastic, then inject water and carry out displacement test,
Further investigate the resistance to erosion shut-off capacity of profile control agent, the envelope of the present embodiment resisting high temperature, high salt profile control agent and organogel profile control agent
Stifled rate is respectively 94.5%, 75.1%, compared to the resisting high temperature, high salt profile control agent closure of the common organogel profile control agent present invention
Rate improves 19.4%.
Embodiment 4
The present embodiment provides a kind of resisting high temperature, high salt profile control agent suitable for high water cut oil field, the resisting high temperature, high salt profile control agent
Raw material components include：
Counted using the weight of the highly mineralized formation brines as 100%, the highly mineralized formation brines include 10% NaCl,
1% CaCl2, 1% MgCl2, 0.6% Na2SO4With the deionized water of surplus.
The preparation method of the present embodiment high temperature resistant salt-resistant polymer is：Under the conditions of 12 DEG C, filled in tool in wide-mouth bottle successively
72.78 parts by weight of deionized water, 20 parts by weight propylene acid amides, 2 parts by weight of acrylic acid sodium, 5 parts by weight of styrene sodium sulfonates are added,
0.05 parts by weight N, N- dioctyl acrylamide, is passed through nitrogen 15min, then adds 0.1 parts by weight ammonium persulfate, 0.05 weight
Part sodium sulfite and 0.2 parts by weight tetramethylethylenediamine, continue to seal after being passed through nitrogen 5min, are made after the completion of wait polymerisation
Grain, mesh screen that is dry and crossing 20 mesh and 60 mesh respectively carry out sub-sieve, and the polymer that 60 mesh mesh screens can not filter out is this
The Heat Resistant and Salt Tolerant Polymer of embodiment.
Dissolubility test is carried out to the Heat Resistant and Salt Tolerant Polymer, to the high-salinity brine (10%wtNaCl+ equipped with 100g
1%wtCaCl2+ 1%wtMgCl2+ 0.6%wtNa2SO4) beaker in add 0.6g above-mentioned Heat Resistant and Salt Tolerant Polymer, stirring
After find the Heat Resistant and Salt Tolerant Polymer solution stable homogeneous, no fine particle is present, and the time being now completely dissolved is 110min.
This implementation also provides the preparation method of above-mentioned resisting high temperature, high salt profile control agent, according to above-mentioned resisting high temperature, high salt profile control agent
The dosage of raw material components, high-salinity brine, Heat Resistant and Salt Tolerant Polymer, salicylide and stabilizer are sequentially added into beaker, mixed
The resisting high temperature, high salt profile control agent is obtained after closing uniformly.
Heat stability testing is carried out to resisting high temperature, high salt profile control agent prepared by this implementation：Resisting high temperature, high salt profile control agent is loaded
Multiple 60mL stainless steels ageing cans and being statically placed in are mixed up in temperature (120 DEG C) drying box, take out a sample at regular intervals,
The apparent viscosity of gel is observed, to evaluate the thermal stability of gel.
The preliminary plastic of resisting high temperature, high salt profile control agent of the present embodiment, the apparent viscosity measured are after experiment is found 24 hours
24500mPas, carry out thermal stability investigation within continuous 3 months, experimental result is as shown in table 4.
The profile control agent thermal stability of table 4
Note：Common organogel profile control agent is the common of the mass fractions such as the resisting high temperature, high salt profile control agent with the present embodiment
What polymer, crosslinking agent and heat stabilizer were formulated, wherein, stabilizer is sodium thiosulfate and sodium polyphosphate proportioning is 1：
0.5。
From the experimental result of table 4, by continuous 3 selenothermy study on the stability, the resisting high temperature, high salt profile control agent of this implementation
First the viscosity retention ratio than common organogel profile control agent is respectively：85.3% and 45.3%, it follows that the present embodiment
Resisting high temperature, high salt profile control agent shows preferable thermal stability.
It is 5.0 × 10 that the present embodiment, which also provides above-mentioned resisting high temperature, high salt profile control agent in salinity,4mg/L-15×104Mg/L's
Application in reservoir profile water blockoff.
The quartz sand of 40-60 mesh is filled in diameter 2.5cm, length 60cm fill out sand tube, by the resistance to height of the present embodiment
Warm high salt profile control agent is injected separately into common organogel profile control agent and is filled with the basket of same particle size quartz sand, by rock
Heart pipe both ends seal, and are placed in constant temperature 72 hours in 120 DEG C of thermostatic drying chambers, make its plastic, then inject water and carry out displacement test,
Further investigate the resistance to erosion shut-off capacity of profile control agent, the envelope of the present embodiment resisting high temperature, high salt profile control agent and organogel profile control agent
Stifled rate is respectively 96.3%, 74.8%, compared to the resisting high temperature, high salt profile control agent closure of the common organogel profile control agent present invention
Rate improves 21.5%.
In summary, resisting high temperature, high salt profile control agent provided by the invention can be applied to the deep flooding fluid tune of high water cut oil field
Drive, it is controllable to can be resistant to high salinity, gelation time, into adhesiveness height, it is possible to achieve deep rock tunneling, effectively block Thief zone
Layer, reach closure high salinity reservoirs high permeability zone purpose.
Claims (10)
1. a kind of resisting high temperature, high salt profile control agent, it is characterised in that counted using total weight parts as 100 parts, the resisting high temperature, high salt profile control agent
Raw material components include：
Heat Resistant and Salt Tolerant Polymer 0.5-0.6 parts
Crosslinking agent 0.4-0.6 parts
Stabilizer 0.3-0.5 parts
And the highly mineralized formation brines of surplus.
2. resisting high temperature, high salt profile control agent according to claim 1, it is characterised in that：The Heat Resistant and Salt Tolerant Polymer includes third
What the two or more material copolymerizations in acrylamide, PAA, SSS and N, N- dioctyl acrylamide were formed
Copolymer.
3. resisting high temperature, high salt profile control agent according to claim 2, it is characterised in that：The Heat Resistant and Salt Tolerant Polymer is propylene
Four kinds of acid amides, PAA, SSS and N, N- dioctyl acrylamide raw materials are (19-20) according to mass ratio：(2-
3)：(2-5)：(0.02-0.05) be copolymerized the copolymer of formation.
4. the resisting high temperature, high salt profile control agent according to Claims 2 or 3, it is characterised in that the Heat Resistant and Salt Tolerant Polymer is total to
Poly- method is：
Under the conditions of 10-15 DEG C, the raw material mixing and water adding for preparing Heat Resistant and Salt Tolerant Polymer is obtained into mixed liquor, into mixed solution
Nitrogen 10-15min is passed through, tetramethylethylenediamine, ammonium persulfate and sodium sulfite is then added, continues to be passed through nitrogen 3-5min,
Then granulating and drying and mesh screen of looking over so as to check, obtain the Heat Resistant and Salt Tolerant Polymer；
Wherein, the mixed liquor of every 100 parts by weight includes the tetramethylethylenediamine of 0.1-0.2 parts, the persulfuric acid of 0.05-0.1 parts
Ammonium, the sodium sulfite of 0.025-0.05 parts, the raw material of Heat Resistant and Salt Tolerant Polymer and the water of surplus of 24.02-27.05 parts；
Preferably, carry out looking over so as to check mesh screen using 20 mesh and 60 mesh mesh screens are passed sequentially through, what 60 mesh mesh screens failed to filter out gathers
Compound is the Heat Resistant and Salt Tolerant Polymer.
5. resisting high temperature, high salt profile control agent according to claim 1, it is characterised in that：The crosslinking agent include phenolic resin,
One or more combinations in parahydroxyben-zaldehyde and salicylide；Preferably, the crosslinking agent is salicylide.
6. resisting high temperature, high salt profile control agent according to claim 1, it is characterised in that：The stabilizer includes bisphenol-A, thio
One or more combinations in sodium sulphate and sodium polyphosphate.
7. resisting high temperature, high salt profile control agent according to claim 6, it is characterised in that：The stabilizer be sodium thiosulfate and
Sodium polyphosphate is with mass ratio 1：The mixture of (0.3-0.5) compounding.
8. resisting high temperature, high salt profile control agent according to claim 1, it is characterised in that：With the weight of the highly mineralized formation brines
For 100% meter, the highly mineralized formation brines includes 10% NaCl, 1% CaCl2, 1% MgCl2, 0.6% Na2SO4
With the deionized water of surplus.
9. the preparation method of any one of the claim 1-8 resisting high temperature, high salt profile control agents, it comprises the following steps：
Heat Resistant and Salt Tolerant Polymer, crosslinking agent and stabilizer is added into concentrated water to be mixed evenly to obtain high temperature resistant height
Salt profile control agent.
10. any one of the claim 1-8 resisting high temperature, high salt profile control agents are 5.0 × 10 in salinity4mg/L-15×104mg/L
Reservoir profile water blockoff in application.
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