CN1168407A - Compounding process of high-temp foamed resin sand-fixing agent - Google Patents
Compounding process of high-temp foamed resin sand-fixing agent Download PDFInfo
- Publication number
- CN1168407A CN1168407A CN 97105102 CN97105102A CN1168407A CN 1168407 A CN1168407 A CN 1168407A CN 97105102 CN97105102 CN 97105102 CN 97105102 A CN97105102 A CN 97105102A CN 1168407 A CN1168407 A CN 1168407A
- Authority
- CN
- China
- Prior art keywords
- agent
- resin
- sand
- temperature
- foamed resin
- 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
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The sand fixing agent is one black colloidal mucus and is prepared by mixing and diluting modified phenol aldehyde resin, heat-resisting assistant, intersoluble diluent, coupling agent, foaming agent and solidifying agent in certain proportion. It can solidify at normal temperature and bear high temperature and it can reach excellent sand controlling and sand fixing effect in cyclic steam stimulation exploitation of high-viscosity oil with less effect no penetration coefficient of oil layer. It has simple preparation and construction process and no "three waste" produced in preparation process.
Description
The invention relates to a high-temperature-resistant foamed resin sand prevention and consolidation agent for an oil well.
The Liaohe oil fieldis a region with quite high thick oil storage amount in China, the thick oil extraction is usually carried out by high-temperature steam stimulation, because stratum sand particles are fine, the stratum sand is easily carried to a shaft along with the thick oil during the high-temperature thermal extraction, so that a pump is blocked, the sand is buried in an oil layer, the shutdown and the production halt seriously affect the normal production of an oil well, a method for preventing the stratum from flowing into the shaft is a mechanical method and a chemical method, a resin reinforced stratum is a common method for loosening an oil reservoir, and is convenient to apply, however, phenolic resin, epoxy resin, urea resin and furan resin are not high-temperature resistant enough and can only be applied to an oil well with the well temperature of 26.7-176.7 ℃, in addition, for example, the furfuryl alcohol resin composite ionic resin can be applied to a sand production oil well with the temperature of more than 350 ℃, but the furfuryl alcohol resin is greatly affected by the steam dryness, the dryness is required to be more than 60 percent, and the, the other disadvantage of the two types of resin sand control is that the two types of resin sand control are greatly influenced by the contradiction between oil layer layers, namely, the oil layer with high stratum permeability has more adsorption resin, and the oil layer with low permeability does not adsorb resin, so that the oil layer with high permeability is seriously injured, the oil layer with low permeability cannot be controlled correspondingly, and the oil well with the sand control effect influenced by the formation leakage cannot be applied.
The invention relates to a foam resin sand control method applied to a low-temperature oil well in Soviet Union at the end of the 70 s and before the beginning of the 80 s, which adopts phenolic resin or urea-formaldehyde resin to foam at the lacuna of a stratum to form a foam sand-blocking layer, plays a role in sand control, has little damage to the stratum and is not easy to block an oil layer.
The invention aims to overcome the existing defects and provide an oil well foam resin sand consolidation agent resistant to the steam high temperature of 350 ℃.
The sand consolidation agent consists of the following substances: cementing agent A, heat-resisting auxiliary agent B, mutual soluble volume diluting agent C, coupling agent D, foaming agent E and initiating curing agent F.
Wherein A is a modified phenolic resin (100%) which has low-temperature cementing function and has a general formula:
in the formula: n is a natural number. CH (CH)2OH is … alkyl alcohol, CH2Comprises the following steps: a methyl group. The modified phenolic resin is a first-order linear resin, contains a large amount of benzene rings and hydroxyl groups, can be cured at normal temperature after a curing agent is added, can greatly reduce the initial solidification temperature of high-temperature foamed resin, and can meet the sand control requirement of low-temperature blocks.
B: the heat-resistant auxiliary agent is a polycyclic aromatic compound rich in colloid and asphaltene, can resist the high temperature of more than 400 ℃, is easy to dissolve mutually due to the similar structure of the heat-resistant auxiliary agent and the modified phenolic resin, generates physical affinity and winding effect, and generates chemical reaction on some groups to generate an integral high-temperature-resistant big group; the heat-resistant auxiliary agent is composed of various substances, and contains aromatic hydrocarbons such as benzene, toluene, xylene and anthrene, aromatic oxygen-containing compounds (such as phenol and other phenolic compounds), nitrogen-containing heterocyclic compounds (such as pyridine, quinoline and other phenolic compounds), sulfur-containing heterocyclic compounds (such as thiophene and other phenolic compounds), and the like.
C: the mutual soluble diluent is alcohol, ketone or lipid. Commonly used are: methanol (CH)3OH), ethanol (CH)2CH2OH), acetone
Ethyl acetate (CH)3COOC2H5). The mutual soluble diluent of the formula mainly uses ethanol CH3CH2OH, because ethanol is non-toxic, the price is relatively low. The mutual soluble diluent can well mutually dissolve the modified phenolic resin and the heat-resistant auxiliary agent and can dilute the viscosity to the required range.
D: is a coupling agent: is a silane compound, namely: gamma-aminopropyltriethoxysilane of formula H2N(CH2)3Si(OC2H3)3Silane is dehydrated on the surface of quartz sand, so that one end of the silane is firmly combined with the quartz sand, and the other end of the silane is mutually adsorbed and wound with resin molecules, so that the bonding strength of the resin and a sand layer can be improved, meanwhile, the silane is also a high-temperature-resistant substance, the temperature resistance of the resin is favorably enhanced, and the hydrolysis reaction is as follows: 
e is a foaming agent: the adhesive consists of aluminum powder, phenolic 3111 surfactant and banana oil, and the volume content is as follows: 40% of aluminum powder, 59% of banana oil and 1% of phenolic 3111 active agent. F is an initiating curing agent, and 18-22% of industrial hydrochloric acid (HCL) is adopted. On one hand, the hydrochloric acid reacts with lead powder in the foaming agent to release hydrogen, namely: plays a role of resin foaming, and on the other hand, the 'H' ion is also a coagulant of the resin and plays a role ofCuring of the resin.
The weight ratio of the components is as follows:
A∶B∶C∶D∶E∶F＝1∶0.5∶0.1～0.3∶0.01∶0.03～0.04∶2～3
the preparation method of the resin is completed according to the weight ratio of the components as follows:
1. preparing a certain amount of A: modified phenolic resin;
2. adding a certain proportion of B into A, and stirring;
3. then adding a certain proportion of alkene-releasing agent C, and stirring uniformly;
4. adding a coupling agent D in a certain proportion, and uniformly stirring;
5. the mixture of the foaming agent E is stirred evenly and then added into the liquid medicine according to the proportion and stirred evenly to prepare the high-temperature foam resin liquid.
The preparation is carried out under the conditions of normal temperature and normal pressure. The high-temperature foaming grease is a linear resin, is dehydrated after being contacted with H ions, is converted into a body structure, finally forms insoluble and insoluble body macromolecules with high mechanical strength, and has the following low-temperature curing process:
the resin after low temperature curing further takes chemical reaction under the action of high temperaturesteam, mainly the conversion of the heat-resistant auxiliary agent and the phenolic resin colloid asphalt, and finally the coke and the asphalt coke are formed. Coke and pitch coke are two strong high-temperature resistantThe material, the cemented formation sand and the formed solid foam can play a good role in sand prevention. The foaming of the high-temperature foamed resin liquid is realized by the fact that aluminum powder in the resin and cementing materials in the stratum meet initiation curing agent-hydrochloric acid to generate hydrogen and carbon dioxide gas; the high-temperature foamed resin obtained by the invention is a dark black liquid substance, and the density is 1.08-1.10g/cm at 25 DEG C3(ii) a The viscosity at 20 ℃ is 100-200 mpa.s; the solid content is 55-65%, and the foaming volume is 6-8 times under normal pressure; the curing temperature is more than 30 ℃; after being cured, the coating can resist 350 ℃ high temperature in a steam medium. The aluminum powder in the resin plays a role in temporary plugging, so that the leakage well is lostThe application effect is improved. In addition, the resin has strong prevention and treatment effects on fine silt, and the sand blocking particle diameter is as follows: 0.05-0.074m/m or more.
When the sand control and sand consolidation device is applied to the field oil well, the oil well is firstly subjected to conventional killing and then the sand surface of the oil well is detected, then sand is flushed to the position of the bottom of the artificial well, an oil pipe is put into the position 10-20 meters above the top boundary of an oil layer, the preparation work before construction is completed by well head equipment, and during sand consolidation, high-temperature foam resin liquid is extruded immediately after an oil washing agent is extruded forwards in the well by the equipment, and then the high-temperature foam resin liquid is injected into the well by 0.5m3And F initiating curing agent is squeezed into the clear water spacer fluid, clear water is squeezed into the well to replace the curing agent to the bottom of the well after the process is finished, and then the well is closed for 24 hours, so that the sand prevention and well cementation process can be finished.
The invention has the advantages that as the modified phenolic resin and the heat-resistant auxiliary agent are adopted as raw materials, the modified phenolic resin contains a large amount of benzene rings and hydroxyl groups, the initial solidification temperature of the high-temperature foamed resin can be greatly reduced, the heat-resistant auxiliary agent is a polycyclic aromatic compound rich in colloid and asphaltene, the modified phenolic resin and the heat-resistant auxiliary agent have similar structures, the modified phenolic resin and the heat-resistant auxiliary agent are combined together and are easy to be mutually dissolved, and physical affinity and winding effects are generated, substances with low boiling points can be volatilized under the action of high-temperature steam after the resin is solidified, the substances are converted into coke and asphalt coke, the temperature is resistant to the high temperature of more than 400 ℃, and a solid foam sand retaining layer can be formed on a well wall under the action of a foaming agent to play a role of an artificial well wall.
The invention is further illustrated by the following examples:
example 1:
at normal temperature and pressure, 100 g of 219# phenolic resin is added with 50 g of heat-resistant auxiliary coal tar (belonging to aromatic polycyclic aromatic compounds), 10 ml of ethanol, 1 ml of organosilicon coupling agent KH550 and 3 g of foaming agent aluminum powder, and the mixture is mixed and stirred to obtain 155 g of blackhigh-temperature foam resin.
Example 2:
the procedure is as in example 1, except that the preparation conditions are industrial, the formulation is:
at normal temperature, 2 tons of 219# phenolic resin is added with 1 ton of coal tar, then 200 kilograms of miscible diluent ethanol is added, and finally, coupling agent KH550, 20 liters and foaming agent aluminum powder 60 liters are added and evenly stirred to obtain high-temperature foamed resin 3280 liters.
Example 3:
the procedure and preparation conditions were identical to those of example 1, except for the following formulation:
using 219# phenolic resin 100 g, heat-resistant auxiliary agent: 50 g of coal tar, 10 ml of acetone, 1 ml of coupling agent KH439, 3 g of foaming agent aluminum powder and 155 g of high-temperature foam resin.
Claims (3)
1. A high-temperature resistant foamed resin sand prevention and consolidation agent for an oil well; it is characterized in that the sand consolidation agent is a dark black liquid substance with the density of 1.08-1.10g/cm at 25 DEG C3(ii) a The viscosity at 20 ℃ is 100-200mpa.s, and the main components are as follows:
a is a modified phenolic resin having the general formula:
in the formula: n is a natural number, CH2OH is: alkyl alcohol, CH2Is methyl.
B: the heat-resistant auxiliary agent is a ring aromatic compound rich in colloid and asphalt;
c: is a miscible diluent, methanol (CH)3OH), ethanol (CH)3CH2OH); acetone (II)
Ethyl acetate (CH)3COOC2H5)；
D: the coupling agent is a silane compound, namely r-aminopropyl triethoxysilane, and the structural formula is as follows: h2N(CH2)3Si(OC2H3)3；
E: the foaming agent is a foam resin liquid which is composed of aluminum powder and phenolic 3111 surfactant:
f: the initiating curing agent is industrial hydrochloric acid.
The weight percentages of the components are as follows:
A∶B∶C∶D∶E∶F＝1∶0.5∶0.1-0.3∶0.01∶0.03-0.04∶2-3
the preparation method comprises the steps of mixing the above materials at normal temperature and normal pressure, stirring and diluting.
2. The high temperature foamed resin sand control and sand consolidation agent of claim 1; the method is characterized in that the solvent is one of the following or the combination of more than one of the following in any proportion: methanol, ethanol, acetone, ethyl acetate.
3. The high temperature foamed resin sand control, sand consolidation agent of claim 1; the method is characterized in that 100 g of No. 219 phenolic resin and heat-resistant auxiliary agent are taken: 50 g of coal tar, 10 ml of ethanol, coupling agent: (KH550)1 ml, 3 g of foaming agent aluminum powder, and 155 g of black foam high-temperature resin is prepared by mixing and stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97105102 CN1168407A (en) | 1997-02-19 | 1997-02-19 | Compounding process of high-temp foamed resin sand-fixing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97105102 CN1168407A (en) | 1997-02-19 | 1997-02-19 | Compounding process of high-temp foamed resin sand-fixing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1168407A true CN1168407A (en) | 1997-12-24 |
Family
ID=5167661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97105102 Pending CN1168407A (en) | 1997-02-19 | 1997-02-19 | Compounding process of high-temp foamed resin sand-fixing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1168407A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371415C (en) * | 2005-12-07 | 2008-02-27 | 赵彧 | Water dispersion composite sand-fixing agent formula |
| CN101270278B (en) * | 2008-05-07 | 2010-07-21 | 东营市汇友石油新技术开发有限责任公司 | Netted sand prevention material |
| CN102060568A (en) * | 2010-10-13 | 2011-05-18 | 中国石油化工股份有限公司 | Preparation process of loaded water-controlled sand with phase permeability regulating function |
| CN102206317A (en) * | 2011-04-15 | 2011-10-05 | 中国石油天然气股份有限公司 | Dihydroxy naphthalene modified phenolic resin for sand prevention and preparation method thereof |
| CN103305201A (en) * | 2013-05-17 | 2013-09-18 | 中国石油天然气股份有限公司 | Resin sand control agent for thickened oil thermal recovery horizontal well and preparation method and application of resin sand control agent |
| CN106634918A (en) * | 2016-11-17 | 2017-05-10 | 中国石油天然气股份有限公司 | High-intensity modified resin sand consolidating agent |
| CN106833585A (en) * | 2017-02-28 | 2017-06-13 | 中国石油大学(华东) | A kind of water-based resin sand control agent and preparation method thereof |
| CN111732722A (en) * | 2019-03-25 | 2020-10-02 | 中国石油化工股份有限公司 | Polymer, preparation method thereof and application of polymer as or in preparation of sand control agent |
| CN115612474A (en) * | 2022-11-18 | 2023-01-17 | 秦皇岛贝特化工科技有限公司 | Sand control agent for oil extraction and preparation method thereof |
| CN117844464A (en) * | 2024-03-07 | 2024-04-09 | 东营区四通化工有限责任公司 | High-permeability resin sand-fixing agent for fracturing and manufacturing method thereof |
-
1997
- 1997-02-19 CN CN 97105102 patent/CN1168407A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371415C (en) * | 2005-12-07 | 2008-02-27 | 赵彧 | Water dispersion composite sand-fixing agent formula |
| CN101270278B (en) * | 2008-05-07 | 2010-07-21 | 东营市汇友石油新技术开发有限责任公司 | Netted sand prevention material |
| CN102060568A (en) * | 2010-10-13 | 2011-05-18 | 中国石油化工股份有限公司 | Preparation process of loaded water-controlled sand with phase permeability regulating function |
| CN102060568B (en) * | 2010-10-13 | 2013-06-19 | 中国石油化工股份有限公司 | Preparation process of loaded water-controlled sand with phase permeability regulating function |
| CN102206317A (en) * | 2011-04-15 | 2011-10-05 | 中国石油天然气股份有限公司 | Dihydroxy naphthalene modified phenolic resin for sand prevention and preparation method thereof |
| CN102206317B (en) * | 2011-04-15 | 2013-01-02 | 中国石油天然气股份有限公司 | Dihydroxy naphthalene modified phenolic resin for sand prevention and preparation method thereof |
| CN103305201A (en) * | 2013-05-17 | 2013-09-18 | 中国石油天然气股份有限公司 | Resin sand control agent for thickened oil thermal recovery horizontal well and preparation method and application of resin sand control agent |
| CN103305201B (en) * | 2013-05-17 | 2015-11-18 | 中国石油天然气股份有限公司 | Heavy crude heat extraction horizontal well resin sand control agent and preparation method thereof and application |
| CN106634918A (en) * | 2016-11-17 | 2017-05-10 | 中国石油天然气股份有限公司 | High-intensity modified resin sand consolidating agent |
| CN106833585A (en) * | 2017-02-28 | 2017-06-13 | 中国石油大学(华东) | A kind of water-based resin sand control agent and preparation method thereof |
| CN111732722A (en) * | 2019-03-25 | 2020-10-02 | 中国石油化工股份有限公司 | Polymer, preparation method thereof and application of polymer as or in preparation of sand control agent |
| CN111732722B (en) * | 2019-03-25 | 2022-09-23 | 中国石油化工股份有限公司 | Polymer, preparation method thereof and application of polymer as or in preparation of sand control agent |
| CN115612474A (en) * | 2022-11-18 | 2023-01-17 | 秦皇岛贝特化工科技有限公司 | Sand control agent for oil extraction and preparation method thereof |
| CN117844464A (en) * | 2024-03-07 | 2024-04-09 | 东营区四通化工有限责任公司 | High-permeability resin sand-fixing agent for fracturing and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4428427A (en) | Consolidatable gravel pack method | |
| US3625287A (en) | Method of improving strength and stability of sand consolidations made with resin systems | |
| CA1087833A (en) | Oil well consolidation treating process and additive | |
| CN1168407A (en) | Compounding process of high-temp foamed resin sand-fixing agent | |
| US3560427A (en) | Method for consolidating a permeable mass | |
| CN110684517B (en) | Self-polymerization consolidation compression-resistant permeation-increasing temperature-resistant sand control agent | |
| US3368626A (en) | Method for consolidating a permeable mass | |
| WO2006077125A1 (en) | Hydrolytically and hydrothermally stable consolidation or modification of the wetting behavior of geological formations | |
| CN109609111B (en) | Wood tar resin sand consolidation agent and preparation method and application thereof | |
| CN103305201B (en) | Heavy crude heat extraction horizontal well resin sand control agent and preparation method thereof and application | |
| US2274297A (en) | Method of treating earth and rock formations | |
| US3760880A (en) | Consolidation of particulate materials located in earthen formations | |
| CN113637293A (en) | Modified resin and application thereof in plugging agent, high-temperature plugging agent and application thereof in high-temperature abandoned well plugging | |
| CN109370560B (en) | Heavy metal mineralized substance warm-curing resin precoated sand and preparation method and application thereof | |
| US6702021B1 (en) | Methods and drilling fluids for drilling well bores and sealing pipe strings therein | |
| CN111303851B (en) | Self-aggregation consolidation pressure-permeation-resistant temperature-resistant sand control agent | |
| CN1116229A (en) | Powder shape water adsorption profile adjusting agent for water flooding well | |
| CN116445144B (en) | Low-shrinkage high-strength plant-based resin plugging agent and preparation method thereof | |
| CN113684011B (en) | High-temperature plugging agent for thermal recovery of thickened oil | |
| CN111635745B (en) | Application of aqueous solution diluent composition in sand prevention of oil and gas wells | |
| CN1335348A (en) | Oil and water well plugging agent and its producing process | |
| CN1182182C (en) | Preparation of deep modifier for cross-linked polymer solution (LPS) | |
| CN111793488B (en) | Chemical sand prevention agent for wood tar, preparation method and application thereof | |
| CN109942252A (en) | A kind of cement gel material and its preparation method and application | |
| CN112646556B (en) | High-sulfur-content gas well oil sleeve annular plugging agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1026587 Country of ref document: HK |