CN104449624A - Novel sand control agent for high-temperature sand control in steam huff-puff oil well - Google Patents

Novel sand control agent for high-temperature sand control in steam huff-puff oil well Download PDF

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CN104449624A
CN104449624A CN201410682947.5A CN201410682947A CN104449624A CN 104449624 A CN104449624 A CN 104449624A CN 201410682947 A CN201410682947 A CN 201410682947A CN 104449624 A CN104449624 A CN 104449624A
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sand control
agent
control agent
parts
epoxy resin
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CN104449624B (en
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黄齐茂
朱杰
潘志权
周红
程清蓉
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Wuhan Institute of Technology
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/56Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
    • C09K8/57Compositions based on water or polar solvents
    • C09K8/575Compositions based on water or polar solvents containing organic compounds
    • C09K8/5751Macromolecular compounds
    • C09K8/5755Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/56Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/12Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating

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Abstract

The invention relates to a novel sand control agent and in particular to a chemical sand control agent suitable for a heavy oil steam thermal production well. The novel sand control agent is prepared from the following components in parts by weight: 30-60 parts of a cementing component, 3-6 parts of a curing agent, 3-6 parts of a film mulching solvent and 1-3 parts of a coupling agent, wherein the cementing component is melamine formaldehyde resin modified bisphenol A type epoxy resin CYD-128; the curing agent is 2-methylimidazole serving as an epoxy resin curing agent; the film mulching solvent is absolute ethyl alcohol and acetone; the coupling agent is a coupling agent KH-550, KH-560 or KH-570. The novel sand control agent has the advantages of good high temperature resistance, good compressive strength, good flexural strength, excellent permeability and strong acid, alkali and salt resistance and can meet the requirements of mechanical strengthens including the compressive strength and the flexural strength on a steam huff-puff oil well in an oil field during mining.

Description

The new type of sand prevention agent of a kind of steamHuff puff oil wells high temperature sand control
Technical field
The present invention relates to a kind of new type of sand prevention agent, particularly relate to a kind of be applicable to steam thermal recovery of heavy oil field adopt well, high temperature resistant, ultimate compression strength and folding strength better, the chemical sand control agent of superior permeability, acid and alkali-resistance salt medium excellent performance.
Background technology
China's loose sand oil accumulation distribution range is comparatively large, reserves are large, output occupies an important position.Under general field conditions (except viscous crude adopts Sand Production Cold Recovery new technology), sand production very harmful, main manifestations is: ground and underground equipment are strictly denuded, even causes sand card; Maintenance load such as sand washing inspection pump, the clear tank in ground etc. increases severely; Sand buries oil reservoir or pit shaft sand plug can cause oil well to stop production; Also can cause when shaking out serious the borehole wall even oil reservoir cave in and damage sleeve pipe and even cause oil well to scrap.These harm had both improve the production cost of crude oil, increased again the exploitation difficulty in oil field.In order to prevent sand production, on the one hand, for oil reservoir and oil well condition, selecting properly well cementation, completion mode, formulate and reasonably exploit measure, production control pressure reduction, restriction seepage velocity, strengthen shaking out the management of oil reservoir well, that avoids strong pumping lures stream measure as far as possible; On the other hand, according to oil reservoir and production practice requirement, adopt corresponding sand-preventing process, guarantee the normal production of oil well.At present, domestic sand-preventing process comprises the composite sand prevention techniques such as the mechanical sand control such as wire wrapped screen gravel filling sand prevention, sand screen sand control, chemical sand control agent chemical sand control, waterfrac treatment-gravpack composite sand prevention, precoated layer gravel and gravpack composite sand prevention, precoated layer gravel and all kinds of sand screen composite sand preventions.Wherein, for thick oil thermal extraction, adopt chemical sand control agent chemical sand control construction technology more for convenience, effect is also better.
Numerous domestic oil field oil reservoir is viscous crude or high solidifying oil.Viscous crude is the crude oil that viscosity is high, relative density is larger, generally on stream, carries out Oil extraction usually through steam stimulation thermal process.Steam stimulation is also known as circulation injecting steam method (Cyclic Steam Injection), it is periodically to injecting steam in oil well, a large amount of heat energy is brought into a kind of viscous crude well stimulation of oil reservoir, the heat energy injected makes former oil viscosity greatly reduce, thus improve the flow capacity of oil reservoir and oil well Crude Oil, play production-increasing function.Steam stimulation thermal recovery, generally adopts high temperature and high pressure steam, and the temperature of high temperature and high pressure steam is generally at 250 ~ 350 DEG C, and therefore, the heat resistance of steam stimulation thermal recovery to chemical sand control agent proposes comparatively harsh requirement.
At present, it is the high temperature resistant type sand control agent such as the high temperature resistant sand control agent of oil well, high-temp foamed resin sand control agent, DDF sand control agent, RC-G sand control agent of raw material that conventional high temperature resistant sand control agent mainly contains with pitch.These existing chemical sand control agent, time under 100 DEG C of-280 DEG C of hot conditionss, ultimate compression strength 3.3-9.7MPa, folding strength 1.7-5.3MPa scope (consult Chen Hui etc. thermal recovery well chemical sand control agent experimental study, Xi'an shiyou University's journal, 1999,14 (6): 34-37. Ma Jinhai, Wang Dengqing etc.Be that High Temperatures In Oil-well sand control agent prepared by raw material with pitch, Xi'an shiyou University's journal (natural science edition), 2003,18 (5): 50-53. Kan Xin are big, Xu Enjin etc.The Developing Application of thickened oil steam-stimulated high-temp foamed resin sand control agent, special reservoirs, 2002,9 (5): 61-64 etc. documents and materials), substantially meet the requirement of strength in oilfield exploitation.But, when temperatures as high 350 DEG C (or >=300 DEG C), main component---adhesive component in existing chemical sand control agent, occurs to decompose and causes the resistance to compression of sand control agent, folding strength all to there will be significantly reducing, and can not continue the requirement of strength maintaining oil mining thus.So, unavailable further utilization in the later stage exploits continuously.
Known through amount of literature data investigation: terpolycyantoamino-formaldehyde resin has remarkable resistance to elevated temperatures.But simple terpolycyantoamino-formaldehyde resin fragility is comparatively large, and resistance to compression, folding strength are not good.Thus, need terpolycyantoamino-formaldehyde resin to obtain new modified resin by the method for chemical modification, meet its demand that is high temperature resistant, that simultaneously have the high characteristic of intensity concurrently with this.Existing terpolycyantoamino-formaldehyde resin modified resin, comprise melamine-formaldehyde resin modified with silicone, poly ethyldiol modified terpolycyantoamino-formaldehyde resin, lignin modification terpolycyantoamino-formaldehyde resin, the modified melamine-formaldehyde resin such as acrylamide, urea, the modified melamine-formaldehyde resin such as polyvinyl alcohol, polyacrylamide, modified melamine-formaldehyde resins such as Mercaptophenylimidazole etc.But, consider from economy, cost angle, the cost of these terpolycyantoamino-formaldehyde resin modified resin is higher (>=30000 yuan/ton), generally be used in aviation and wide, leather and plastics, be not suitable for applying at sand-preventing petroleum field (precoated sand cost is at 2000 yuan/ton-2500 yuan/ton).
Summary of the invention
The present invention is directed to the mechanical property of chemical sand control agent and the deficiency of resistance to elevated temperatures in prior art, object is to provide the agent of a kind of steamHuff puff oil wells high temperature sand control new type of sand prevention, it is good that this sand control agent has resistance to elevated temperatures, resistance to compression, High anti bending strength, have excellent perviousness, advantage that acid and alkali-resistance salt medium performance is strong simultaneously.
For achieving the above object, the technical solution used in the present invention is:
A kind of novel fire resistant sand control agent, be made up of cementing component, solidifying agent, overlay film solvent and coupling agent, the weight proportion of each component is: cementing component 30 ~ 60 parts, 3 ~ 6 parts, solidifying agent, overlay film solvent 3 ~ 6 parts, coupling agent 1 ~ 3 part; Described cementing component is terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, and described solidifying agent is 2-Methyl-imidazole.
By such scheme, described overlay film solvent is dehydrated alcohol, acetone.
By such scheme, described coupling agent is coupling agent KH-550, KH-560 or KH-570.
By such scheme, described terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 prepares by the following method: get terpolycyantoamino-formaldehyde resin and bisphenol A-type CYD-128 model epoxy resin reacts, both mass ratioes are 1:1.5 ~ 1:2.5, toluene is added as solvent in reaction system, setting temperature of reaction system is 75 ~ 80 DEG C, when temperature arrives 65 DEG C, occurs backflow phenomenon in system, when temperature reaches 75 ~ 80 DEG C, start to carry out reaction 3.5h ~ 4h; After question response terminates, lower the temperature and remove toluene solvant, after isolating water wherein, obtaining terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 simultaneously.
Terpolycyantoamino-formaldehyde resin described in the present invention is trimeric cyanamide and the formaldehyde broad-spectrum thermoset amino resin of one that polycondensation is obtained again after methylation reaction.Its methylene radical two ends of terpolycyantoamino-formaldehyde resin have triazine ring, and multiple triazine ring and methylene radical interlaced, therefore the resistance to elevated temperatures of melamine resin is excellent.Bisphenol A-type CYD-128 model epoxy resin, containing multiple polar group and active very large epoxy group(ing), have good binding property with the material such as metal, timber, glass, and the cohesive strength of curable epoxide thing is large, consolidation strength is general also very high.In trimeric cyanamide, there is-CH 2the building stone of OH, has the building stone of-OH ,-the CH in trimeric cyanamide in the epoxy resin of bisphenol A-type 2there is further addition condensation reaction in the-OH in OH and bisphenol A epoxide resin, form the organic polymer condensation body that space is three-dimensional shape, its chemical equation is shown in following formula (1), and the terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 prepared also has high-strength characteristic on the basis possessing the resistant to elevated temperatures characteristic of terpolycyantoamino-formaldehyde resin simultaneously.
Curing component in new type of sand prevention agent of the present invention is solidifying agent glyoxal ethyline, epoxide group reaction in reactive hydrogen in secondary amine on it and terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 generates affixture, and this affixture is created in molecule with the reaction of other epoxide group and has concurrently with the ionic complex of ion; The ionic complex generated ion and epoxide group reaction, with the cured modified resin of mode ring-opening polymerization of chain reaction, form the firm high temperature resistant cured article of three-dimensional network-like structure thermoset, reaction equation is shown in following formula (2).
Formula (2), wherein: R is other structures in terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 except epoxy group(ing); R 1, R 2, R 3be respectively-CH 3, H, H.
Beneficial effect of the present invention:
(1) terpolycyantoamino-formaldehyde resin of the present invention and bisphenol A type epoxy resin CYD-128 with low cost, both are applied in the agent of steam stimulation Oil/gas Well new type of sand prevention by the modified resin that chemical modification method prepares, it is good that this new type of sand prevention agent has resistance to elevated temperatures, resistance to compression, High anti bending strength, there is excellent perviousness simultaneously, the advantage that acid and alkali-resistance salt medium performance is strong, can meet the requirement of the physical strength such as resistance to compression, folding strength in the steamHuff puff oil wells exploitation of oil field.
(2) new type of sand prevention agent preparation technology of the present invention, construction technology is simple, and the volatility of raw material and toxicity are all lower; And be used in Oil/gas Well aspect, can not, to oil field environment, can obtain well and widely applying in oilfield sand control field.
Accompanying drawing explanation
Fig. 1 is the infrared spectrogram of terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128.
Fig. 2 is thermogravimetric analysis (TGA) figure of terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128.
Fig. 3 is electron-microscope scanning (SEM) figure of precoated sand.
Embodiment
In following examples, described terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 prepares by the following method: get 5g ~ 5.5g terpolycyantoamino-formaldehyde resin (self-control) in 500mL four-hole boiling flask, toward the bisphenol A-type CYD-128 model epoxy resin wherein adding 7.5g ~ 12.5g, toward the toluene wherein adding 25mL ~ 35ml.Setting temperature of reaction system is 75 ~ 80 DEG C, when temperature arrives 65 DEG C, occurs backflow phenomenon in system, when temperature reaches 75 ~ 80 DEG C, starts to carry out reaction 3.5h ~ 4h.After question response terminates, lower the temperature and remove solvent (toluene) and after isolating water wherein, obtain final product.Product characters is oyster white Colloidal fluid, is carried out infrared spectra map analysis, the results are shown in Figure 1.As can be seen from Figure 1,3358cm -1the absorption peak that place occurs is-CH 2the polymeric charateristic avsorption band that OH association is formed; 3056cm -1, 1245cm -1, 915cm -1, 865cm -1occur that absorption peak is the epoxy group(ing) in epoxy resin structural at place charateristic avsorption band; 2966cm -1, 2872cm -1the absorption peak that place occurs is-CH 3charateristic avsorption band; 2920cm -1there is absorption peak in place, is modified resin methylene-CH 2charateristic avsorption band; 1606cm -1, 1584cm -1, 1508cm -1there is absorption peak at place, be the charateristic avsorption band of-C=C-in benzene ring structure; 1084cm -1the absorption peak that place occurs is the charateristic avsorption band of C-O-C.Illustrate that the product prepared is terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 thus, its molecular structural formula is such as formula shown in (1).
Embodiment 1
A kind of novel fire resistant sand control agent, is made up of cementing component, solidifying agent, overlay film solvent and coupling agent, each composition weight proportioning: cementing component 60 parts; 6 parts, solidifying agent, overlay film solvent 6 parts, coupling agent 2 parts.Described cementing component is terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, and solidifying agent is glyoxal ethyline, and overlay film solvent is dehydrated alcohol, and coupling agent is coupling agent KH-550.
By terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, respectively with solidifying agent glyoxal ethyline under 60 DEG C of water bath condition curing reaction 2 days, obtain cured article.Get the cured article sample of about 10mg, carry out thermogravimetric analysis (TGA), the results are shown in Figure 2, as can be seen from Figure 2, under 350 DEG C of hot conditionss, this cured article still maintains the residual quantity of 62%-63%.Illustrate thus, the excellent heat resistance of this cured article.
Sand control agent is utilized to prepare precoated sand (its shelf-time is long).The preparation method of precoated sand: terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 and overlay film solvent is even, wiring solution-forming; Then, epoxy curing agent is joined in above-mentioned solution, mixes; Coupling agent is joined in the quartz sand of 1000 weight parts, stir in agitator, then the solution that previous step is prepared is joined in agitator and mix with quartz sand, obtain pre-wrapped sand; Above-mentioned pre-wrapped sand is scattered in air seasoning place, coolly to put, after pre-wrapped sand finish-drying, ground loose, obtain precoated sand, pack sealing.Fig. 3 is electron-microscope scanning (SEM) figure of precoated sand, and as can be seen from Figure 3, the covered effect of single sand grains is good, and the connection effect between sand grains and sand grains is also better.
The preparation of consolidation rock core: precoated sand is filled into one end and is equipped with in the Glass tubing of plug with holes, solidifies after 2 days and namely obtains consolidation rock core under 60 DEG C under water condition.
The consolidation rock core prepared is placed in retort furnace toast, setting furnace temperature temperature is 350 DEG C, calcines the resistance to compression after 1d ~ 7d, folding strength as following table 1 under high temperature.At first 3 days of calcining, resistance to compression, folding strength were improved to some extent, and this is mainly because the free-CH in terpolycyantoamino-formaldehyde resin 2the further condensation of-OH in the epoxy resin of OH group and dihydroxyphenyl propane, causes intensity to strengthen; After calcining 4d, ultimate compression strength decrease to some degree, mainly because component there occurs decomposition, but calcining is after 7 days, and ultimate compression strength still has 5.7MPa, folding strength also still has 3.4MPa.
The resistance to compression of table 1 high temperature on consolidation rock core, the impact of folding strength
Embodiment 2
A kind of novel fire resistant sand control agent, is made up of cementing component, solidifying agent, overlay film solvent and coupling agent, each composition weight proportioning: cementing component 45 parts; 4.5 parts, solidifying agent, overlay film solvent 4.5 parts, coupling agent 1.5 parts.Described cementing component is terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, and solidifying agent is glyoxal ethyline, and overlay film solvent is dehydrated alcohol, and coupling agent is coupling agent KH-560.
Utilize sand control agent to prepare consolidation rock core, the consolidation rock core prepared is placed in retort furnace and toasts, setting furnace temperature temperature is 350 DEG C, calcines the resistance to compression after 1d ~ 7d, folding strength as following table 2 under high temperature.3 days before calcination, resistance to compression, folding strength were improved to some extent, and this is mainly because the free-CH in terpolycyantoamino-formaldehyde resin 2the further condensation of-OH in the epoxy resin of OH group and dihydroxyphenyl propane, causes intensity to strengthen.Calcine after 4d days, ultimate compression strength decrease to some degree, mainly because component there occurs decomposition, but after calcining 7d, ultimate compression strength still has 4.8MPa, and folding strength also still has 2.9MPa.
The resistance to compression of table 2 high temperature on consolidation rock core, the impact of folding strength
Embodiment 3
A kind of novel fire resistant sand control agent, is made up of cementing component, solidifying agent, overlay film solvent and coupling agent, each composition weight proportioning: cementing component 30 parts; 3 parts, solidifying agent, overlay film solvent 3 parts, coupling agent 1 part.Described cementing component is terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, and solidifying agent is glyoxal ethyline, and overlay film solvent is acetone, and coupling agent is coupling agent kh-570.
Utilize sand control agent to prepare consolidation rock core, the consolidation rock core prepared is placed in retort furnace and toasts, setting furnace temperature temperature is 350 DEG C, calcines the resistance to compression after 1d ~ 7d, folding strength as following table 3 under high temperature.3 days before calcination, resistance to compression, folding strength were improved to some extent, and this is mainly because the free-CH in terpolycyantoamino-formaldehyde resin 2the further condensation of-OH in the epoxy resin of OH group and dihydroxyphenyl propane, causes intensity to strengthen.After calcining 4d, ultimate compression strength decrease to some degree, mainly because component there occurs decomposition, but after calcining 7d, ultimate compression strength still has 3.6MPa, and folding strength still has 2.5MPa.
The resistance to compression of table 3 high temperature on consolidation rock core, the impact of folding strength
Embodiment 1 ~ 3 prepared after the media such as the different acid-alkali salt of competent rock the heart channel of Hang-Shaoyin soak 7 days, the resistance to compression before and after its process, folding strength are as following table 4.Table 4 describes, and the consolidation rock core intensity formed in low temperature (60 DEG C) high humidity atmosphere in oil well is high: folding strength is 8.4 ~ 11.9MPa, and ultimate compression strength is 10.1 ~ 15.8MPa, good (35.58 ~ 79.12 μm of liquid infiltration rate 2), as can also be seen from Table 4, the media such as its acidproof alkali salt are excellent.
The resistance to compression of medium on consolidation rock core, the impacts of folding strength such as table 4 acid, alkali, salt and diesel oil
Control group
With the terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 in Si-B resin chemical modified bisphenol A type epoxy resin alternate embodiment 1, form sand control agent with solidifying agent, coupling agent together with overlay film solvent.Described Si-B (silicon-boron) resin chemical modified bisphenol A type epoxy resin is after utilization organosilane and boric acid react, then the modified resin obtained after it is carried out chemical modification to bisphenol A epoxide resin.
Be prepared into precoated sand with above-mentioned sand control agent, be prepared into consolidation rock core further, during for high temperature test (setting furnace temperature temperature is 350 DEG C, calcines 1d ~ 7d under high temperature), data are as shown in table 5 below.The result of table 5 illustrates:
Under 1-2d hot conditions, the physical strengths such as the resistance to compression of consolidation rock core, anti-folding have decline to a certain degree, but the amplitude declined is little.From 3d, significantly declining appears in resistance to compression, folding strength, and when 4d, resistance to compression, folding strength are down to 3.2MPa and 2.8MPa respectively, and in 5th ~ 7d, crackle appears in consolidation rock core, and resistance to compression and folding strength are even low to moderate 0.8MPa and 0.1MPa.Therefore, the requirement of strength of oil field steamHuff puff oil wells exploitation can not be met.
The resistance to compression of table 5 high temperature on consolidation rock core, the impact of folding strength
With the terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 in imide resin chemical modification bisphenol A type epoxy resin alternate embodiment 1, sand control agent is formed together with overlay film solvent with solidifying agent, coupling agent, described imide resin chemical modification bisphenol A type epoxy resin, after utilization organic acid anhydride and aromatic amine carry out chemical reaction, then the modified resin obtained after it is carried out chemical modification to bisphenol A epoxide resin.
Be prepared into precoated sand with above-mentioned sand control agent, be prepared into Sandstone Cores further, during for high temperature test (setting furnace temperature temperature is 350 DEG C, calcine 1d ~ 7d under high temperature), data are as shown in table 6 below.
The result of table 6 illustrates: under 1-2d hot conditions, the physical strengths such as the resistance to compression of consolidation rock core, anti-folding have decline to a certain degree, but the amplitude declined is little.From 3d, significantly declining appears in resistance to compression, folding strength, and when 4d, resistance to compression, folding strength are down to 3.9MPa and 3.1MPa respectively.In 5`7d, also there is crackle in consolidation rock core, and resistance to compression and folding strength are even low to moderate 0.7MPa and 0.4MPa, therefore, can not meet the requirement of strength of oil field steamHuff puff oil wells exploitation.
The resistance to compression of table 6 high temperature on consolidation rock core, the impact of folding strength
The data of consolidated statement 4,5,6 can be learnt, the new type of sand prevention agent of terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, solidifying agent, coupling agent and the overlay film solvent composition prepared by this patent, resistance to elevated temperatures is good, resistance to compression, High anti bending strength, can meet the requirement of the physical strength such as resistance to compression, folding strength in the steamHuff puff oil wells exploitation of oil field.
Obviously, above-described embodiment is only for the example done clearly is described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And therefore amplified apparent change or variation are still within the protection domain of the invention.

Claims (4)

1. a novel fire resistant sand control agent, is characterized in that, described sand control agent is made up of cementing component, solidifying agent, overlay film solvent and coupling agent, the weight proportion of each component is: cementing component 30 ~ 60 parts, 3 ~ 6 parts, solidifying agent, overlay film solvent 3 ~ 6 parts, coupling agent 1 ~ 3 part; Described cementing component is terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128, and described solidifying agent is 2-Methyl-imidazole.
2. high temperature resistant sand control agent according to claim 1, is characterized in that, described overlay film solvent is dehydrated alcohol, acetone.
3. high temperature resistant sand control agent according to claim 1, is characterized in that, described coupling agent is coupling agent KH-550, KH-560 or KH-570.
4. high temperature resistant sand control agent according to claim 1, it is characterized in that, described terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 prepares by the following method: get terpolycyantoamino-formaldehyde resin and bisphenol A-type CYD-128 model epoxy resin reacts, both mass ratioes are 1:1.5 ~ 1:2.5, toluene is added as solvent in reaction system, setting temperature of reaction system is 75 ~ 80 DEG C, when temperature arrives 65 DEG C, backflow phenomenon is there is in system, when temperature reaches 75 ~ 80 DEG C, start to carry out reaction 3.5h ~ 4h; After question response terminates, lower the temperature and remove toluene solvant, after isolating water wherein, obtaining terpolycyantoamino-formaldehyde resin modified bisphenol A type epoxy resin CYD-128 simultaneously.
CN201410682947.5A 2014-11-24 2014-11-24 A kind of steamHuff puff oil wells high temperature sand control new type of sand prevention agent Expired - Fee Related CN104449624B (en)

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Cited By (9)

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CN104830306A (en) * 2015-04-20 2015-08-12 武汉工程大学 Sand control agent used for steam huff-puff oil well at high temperature
CN106590562A (en) * 2016-12-15 2017-04-26 中国石油大学(华东) Active oil-washing sand consolidating agent and preparation method and application thereof
CN106634920A (en) * 2016-12-23 2017-05-10 中国石油大学(华东) Low-density foam resin sand preventing agent suitable for sand production horizontal well of unconsolidated sandstone reservoir and preparation method of low-density foam resin sand preventing agent
CN106753302A (en) * 2016-12-02 2017-05-31 中国石油大学(华东) Active washing oil sand-fixating agent and preparation method and application
CN111303851A (en) * 2020-03-24 2020-06-19 北京捷贝通石油技术股份有限公司 Self-aggregation consolidation pressure-permeation-resistant temperature-resistant sand control agent
CN112521926A (en) * 2020-05-06 2021-03-19 中国石油天然气股份有限公司 Water-based compound type foam resin sand prevention system, preparation method and application thereof
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CN104830306A (en) * 2015-04-20 2015-08-12 武汉工程大学 Sand control agent used for steam huff-puff oil well at high temperature
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CN106590562A (en) * 2016-12-15 2017-04-26 中国石油大学(华东) Active oil-washing sand consolidating agent and preparation method and application thereof
CN106634920A (en) * 2016-12-23 2017-05-10 中国石油大学(华东) Low-density foam resin sand preventing agent suitable for sand production horizontal well of unconsolidated sandstone reservoir and preparation method of low-density foam resin sand preventing agent
CN106634920B (en) * 2016-12-23 2019-07-09 中国石油大学(华东) A kind of low density foam resin sand control agent and preparation method thereof suitable for sand producing in unconsolidated sandstone reservoir horizontal well
CN111303851A (en) * 2020-03-24 2020-06-19 北京捷贝通石油技术股份有限公司 Self-aggregation consolidation pressure-permeation-resistant temperature-resistant sand control agent
CN111303851B (en) * 2020-03-24 2022-03-29 捷贝通石油技术集团股份有限公司 Self-aggregation consolidation pressure-permeation-resistant temperature-resistant sand control agent
CN112521926A (en) * 2020-05-06 2021-03-19 中国石油天然气股份有限公司 Water-based compound type foam resin sand prevention system, preparation method and application thereof
CN113388077A (en) * 2021-06-22 2021-09-14 西南石油大学 High-temperature-resistant self-crosslinking water-based epoxy resin for oil well cement
CN113388077B (en) * 2021-06-22 2022-05-13 西南石油大学 High-temperature-resistant self-crosslinking water-based epoxy resin for oil well cement
CN115232608A (en) * 2022-05-31 2022-10-25 中国石油化工股份有限公司 High-temperature-resistant consolidated precoated sand and preparation method thereof
CN117551440A (en) * 2024-01-10 2024-02-13 东营煜煌能源技术有限公司 Foamed resin sand-fixing agent and preparation method thereof
CN117551440B (en) * 2024-01-10 2024-03-26 东营煜煌能源技术有限公司 Foamed resin sand-fixing agent and preparation method thereof

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