CN105038741A - Cementing fluid system and preparation method of same - Google Patents
Cementing fluid system and preparation method of same Download PDFInfo
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- CN105038741A CN105038741A CN201510253861.5A CN201510253861A CN105038741A CN 105038741 A CN105038741 A CN 105038741A CN 201510253861 A CN201510253861 A CN 201510253861A CN 105038741 A CN105038741 A CN 105038741A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
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Abstract
The invention provides a cementing fluid system which is composed of following components, by weight, 100 parts of thermosetting resin, 0.4-16 parts of a curing agent, 40-50 parts of a frame filling material, 2.5-5 parts of a stabilizing agent and 30-50 parts of clear water. The cementing fluid system belongs to zero-permeability and high-elasticity materials and is higher than Portland cement stone in strength, so that during separate layer fracturing operation, effective sealing among the reservoirs is improved and a problem of annular pressure. Meanwhile, the cementing fluid system can achieve oil gas well reservoir improvement. The cementing fluid system is suitable for well cementing operation of an oil gas well at 30-120 DEG C and is used as a substitute material of Portland cement, is excellent in sealing effect and is excellent in application prospect.
Description
Technical field
The present invention relates to oilfield exploitation technical field, be specifically related to a kind of cementing fluid system and preparation method thereof.
Background technology
Abroad in Recent Years Halliburton Company develops a kind of WellLock annular space sealing resin, when cementing the well with spearhead with the use of, improve consolidation strength, or for squeeze method repairing work, recovery borehole integrity.But its cost is higher, over-all properties is also not enough to replace cement for well cementing operation completely.Domestic still just using the class admixture use of resin as oil well cement at present, do not depart from silicate cement system, or resin is used for the borehole operation such as leak stopping, not yet substitute cement and be used for well cementation.
Silicate cement is a kind of hard brittle material of easy contraction, under Injection Well after annular space, the globality of later stage perforation and pressing crack construction destructible silicate cement mudstone, its body easily produces micro-annulus, microfracture, cause the object that cannot reach later stage reservoir reconstruction, and the annular easily causing sleeve pipe and the borehole wall to be formed cannot implement effective sealing, thus formation well head continues the phenomenon that steams with pressure.
Summary of the invention
The object of the invention is to solve the existing silicate cement system for well cementing operation and easily produce micro-annulus, microfracture, cause the object that cannot reach later stage reservoir reconstruction, and the annular space easily causing sleeve pipe and the borehole wall to be formed cannot implement effective sealing, thus formation well head continues the problems such as phenomenon that steam with pressure.
For this reason, the invention provides a kind of cementing fluid system, be made up of the component of following weight part:
Thermosetting resin 100 parts, 0.4 ~ 16 part, solidifying agent, skeleton packing material 40 ~ 50 parts, stablizer 2.5 ~ 5 parts, 30 ~ 50 parts, clear water.
Described thermosetting resin is 100 parts, solidifying agent is 10 parts, and skeleton packing material is 40 parts, and stablizer is 3 parts, and clear water is 40 parts.
Described thermosetting resin is the one or more combination in epoxy resin, resol, furane resin, unsaturated polyester.
Described solidifying agent is the one or more combination in aliphatics amine, aromatic amines, amide group amine.
Described skeleton packing material is the one or more combination in quartz sand, barite, powdered iron ore.
Described stablizer is polyacrylamide, polyvinylpyrrolidone, acrylate copolymer one or more combination.
A preparation method for cementing fluid system, described cementing fluid system and weight proportion thereof comprise thermosetting resin 100 parts, 0.4 ~ 16 part, solidifying agent, skeleton packing material 40 ~ 50 parts, stablizer 2.5 ~ 5 parts, 30 ~ 50 parts, clear water,
Concrete steps are as follows:
(1) thermosetting resin and clear water are all added in stirring arm cup, under the speed of per minute 4000 turns, successively solidifying agent, skeleton packing material, stablizer are added in stirring arm cup in 20s;
(2) under the speed of per minute 14000 turns, stir 40s ~ 50s, complete the preparation of cementing fluid system;
The add-on of above-mentioned raw materials all adds by formula ratio.
The present invention adopts technique scheme, has the following advantages:
Cementing fluid system provided by the invention, the resistance to strong acid of this system, caustic corrosion, density range 1.10g/cm
3~ 1.90g/cm
3, set time is adjustable controlled the temperature range of 30 DEG C ~ 120 DEG C, and sedimentation stability is less than 0.02g/cm
3, 24h intensity is not less than 14MPa, and consolidation strength is greater than 2.5MPa, and rate of permeation is 0; Shrinking percentage is 0; Young's modulus 3GPa ~ 8GPa, and cured body integrity is good, uses cementing fluid system sealing reservoir, during well cementing operation, cementing fluid system is criticized mixed rear injection and is filled annular space, utilizes cementing fluid system to implement effect sealing between reservoir and reservoir.Because well cementing liquid system belongs to zero rate of permeation, highly elastic material, intensity, higher than silicate cement mudstone, during fracturing of separate layers operation, improves the effective sealing between each reservoir, prevents annular space phenomenon with pressure, can reach Oil/gas Well reservoir reconstruction object simultaneously.This technology is applicable to the oil gas well cementing operation operation that temperature is 30 DEG C ~ 120 DEG C, and use as silicate cement equivalent material, have good sealing function, its application prospect is good.
Embodiment
Further a kind of cementing fluid system and preparation method thereof is described in detail below in conjunction with embodiment.
A kind of cementing fluid system, is made up of the component of following weight part:
Thermosetting resin 100 parts, 0.4 ~ 16 part, solidifying agent, skeleton packing material 40 ~ 50 parts, stablizer 2.5 ~ 5 parts, 30 ~ 50 parts, clear water.
Described thermosetting resin is 100 parts, and solidifying agent is 10 parts, and skeleton packing material is 40 parts, and stablizer is 3 parts, and clear water is 40 parts.
Described thermosetting resin is the one or more combination in epoxy resin, resol, furane resin, unsaturated polyester.
Described solidifying agent is the one or more combination in aliphatics amine, aromatic amines, amide group amine.
Described skeleton packing material is the one or more combination in quartz sand, barite, powdered iron ore.
Described stablizer is polyacrylamide, polyvinylpyrrolidone, acrylate copolymer one or more combination.
A preparation method for cementing fluid system, described cementing fluid system and weight proportion thereof comprise thermosetting resin 100 parts, 0.4 ~ 16 part, solidifying agent, skeleton packing material 40 ~ 50 parts, stablizer 2.5 ~ 5 parts, 30 ~ 50 parts, clear water,
Concrete steps are as follows:
(1) thermosetting resin and clear water are all added in stirring arm cup, under the speed of per minute 4000 turns, successively solidifying agent, skeleton packing material, stablizer are added in stirring arm cup in 20s;
(2) under the speed of per minute 14000 turns, stir 40s ~ 50s, complete the preparation of cementing fluid system;
The add-on of above-mentioned raw materials all adds by formula ratio.
The present invention is according to thermosetting resin cured mechanism, mainly preferably consider three aspects from thermosetting resin, supporting admixture, skeleton packing material, prepare the cementing fluid system of the oil gas well cementing operation construction operation of a kind of satisfied temperature 30 DEG C ~ 120 DEG C, mechanical property is all better than conventional silicate cement, and perforating and fracturing construction can not affect the integrity of annular space material for sealing.Because thermosetting resin belongs to zero rate of permeation, highly elastic material, intensity, higher than silicate cement mudstone, during fracturing of separate layers operation, improves the effective sealing between each reservoir, prevents annular space phenomenon with pressure, can reach Oil/gas Well reservoir reconstruction object simultaneously.
Embodiment 1:
The weight proportion of supplying raw materials according to table 1 is prepared, and selects thermosetting resin 100 parts, 40 parts, clear water, skeleton packing material 40 parts, 0.4 part, solidifying agent, stablizer 2.5 parts, selects materials after terminating, is prepared according to following steps:
(1) 100 parts of thermosetting resins and 40 parts of clear water are all added in stirring arm cup, under the speed of per minute 4000 turns, successively 0.4 part of solidifying agent, 40 parts of skeleton packing materials, 2.5 parts of stablizers are added in stirring arm cup in 20s;
(2) under the speed of per minute 14000 turns, stir 40s ~ 50s, complete the preparation of cementing fluid system, cementing fluid system is poured into the experimental simulation carrying out well cementing operation in maintenance module, particularly cementing fluid system is put into High Temperature Curing case and carry out 70 DEG C of maintenances, form cured body, the intensity in test cured body 24 hours, concrete intensity and Young's modulus as shown in table 2.
Concrete, the formula table of cementing fluid system is as shown in table 1:
| Classification | Thermosetting resin | Clear water | Skeleton packing material | Solidifying agent | Stablizer |
| Addition | 100 | 40 | 40 | 0.4 | 2.5 |
The salient features table of the cementing fluid system of table 2 embodiments of the invention:
| Young's modulus/GPa | Ultimate compression strength |
| 3.4 | 26 |
The thermosetting resin selected in the present embodiment is the combination of one or more in epoxy resin, resol, furane resin, unsaturated polyester, solidifying agent is the one or more combination in aliphatics amine, aromatic amines, amide group amine, skeleton packing material is the one or more combination in quartz sand, barite, powdered iron ore, and stablizer is polyacrylamide, polyvinylpyrrolidone, acrylate copolymer one or more combination.
The resistance to strong acid of this system, caustic corrosion, density range 1.10g/cm
3~ 1.90g/cm
3, set time is adjustable controlled the temperature range of 30 DEG C ~ 120 DEG C, and sedimentation stability is less than 0.02g/cm
3, 24h intensity is not less than 14MPa, and consolidation strength is greater than 2.5MPa, and rate of permeation is 0; Shrinking percentage is 0; Young's modulus 3GPa ~ 8GPa.
Embodiment 2:
The weight proportion of supplying raw materials according to table 3 is prepared, and selects thermosetting resin 100 parts, 30 parts, clear water, skeleton packing material 40 parts, 4 parts, solidifying agent, stablizer 3 parts, selects materials after terminating, is prepared according to following steps:
(1) 100 parts of thermosetting resins and 30 parts of clear water are all added in stirring arm cup, under the speed of per minute 4000 turns, successively 4 parts of solidifying agent, 40 parts of skeleton packing materials, 3 parts of stablizers are added in stirring arm cup in 20s;
(2) under the speed of per minute 14000 turns, stir 40s ~ 50s, complete the preparation of cementing fluid system, cementing fluid system is poured into the experimental simulation carrying out well cementing operation in maintenance module, particularly cementing fluid system is put into High Temperature Curing case and carry out 70 DEG C of maintenances, form cured body, the intensity in test cured body 24 hours, concrete intensity and Young's modulus as shown in table 4.
Concrete, the formula table of cementing fluid system is as shown in table 3:
| Classification | Thermosetting resin | Clear water | Skeleton packing material | Solidifying agent | Stablizer |
| Addition | 100 | 30 | 40 | 4 | 3 |
The salient features table of the cementing fluid system of table 4 embodiments of the invention:
| Young's modulus/GPa | Ultimate compression strength |
| 4.1 | 28.2 |
The thermosetting resin selected in the present embodiment is the combination of one or more in epoxy resin, resol, furane resin, unsaturated polyester, solidifying agent is the one or more combination in aliphatics amine, aromatic amines, amide group amine, skeleton packing material is the one or more combination in quartz sand, barite, powdered iron ore, and stablizer is polyacrylamide, polyvinylpyrrolidone, acrylate copolymer one or more combination.
The resistance to strong acid of this system, caustic corrosion, density range 1.10g/cm
3~ 1.90g/cm
3, set time is adjustable controlled the temperature range of 30 DEG C ~ 120 DEG C, and sedimentation stability is less than 0.02g/cm
3, 24h intensity is not less than 14MPa, and consolidation strength is greater than 2.5MPa, and rate of permeation is 0; Shrinking percentage is 0; Young's modulus 3GPa ~ 8GPa.
Embodiment 3:
The weight proportion of supplying raw materials according to table 5 is prepared, and selects thermosetting resin 100 parts, 30 parts, clear water, skeleton packing material 40 parts, 10 parts, solidifying agent, stablizer 3.5 parts, selects materials after terminating, is prepared according to following steps:
(1) 100 parts of thermosetting resins and 30 parts of clear water are all added in stirring arm cup, under the speed of per minute 4000 turns, successively 10 parts of solidifying agent, 40 parts of skeleton packing materials, 3.5 parts of stablizers are added in stirring arm cup in 20s;
(2) under the speed of per minute 14000 turns, stir 40s ~ 50s, complete the preparation of cementing fluid system, cementing fluid system is poured into the experimental simulation carrying out well cementing operation in maintenance module, particularly cementing fluid system is put into High Temperature Curing case and carry out 70 DEG C of maintenances, form cured body, the intensity in test cured body 24 hours, concrete intensity and Young's modulus as shown in table 6.
Concrete, the formula table of cementing fluid system is as shown in table 5:
| Classification | Thermosetting resin | Clear water | Skeleton packing material | Solidifying agent | Stablizer |
| Addition | 100 | 30 | 40 | 10 | 3.5 |
The salient features table of the cementing fluid system of table 6 embodiments of the invention:
| Young's modulus/GPa | Ultimate compression strength |
| 5.3 | 30 |
The thermosetting resin selected in the present embodiment is the combination of one or more in epoxy resin, resol, furane resin, unsaturated polyester, solidifying agent is the one or more combination in aliphatics amine, aromatic amines, amide group amine, skeleton packing material is the one or more combination in quartz sand, barite, powdered iron ore, and stablizer is polyacrylamide, polyvinylpyrrolidone, acrylate copolymer one or more combination.
The resistance to strong acid of this system, caustic corrosion, density range 1.10g/cm
3~ 1.90g/cm
3, set time is adjustable controlled the temperature range of 30 DEG C ~ 120 DEG C, and sedimentation stability is less than 0.02g/cm
3, 24h intensity is not less than 14MPa, and consolidation strength is greater than 2.5MPa, and rate of permeation is 0; Shrinking percentage is 0; Young's modulus 3GPa ~ 8GPa.
Thermosetting resin has phenolic aldehyde, epoxy, furans, amino, unsaturated polyester and silicon ether resin etc., widespread use in multiple drilling operation and development operation.Thermosetting resin physical features is free copolymer solution, and irreversiblely can be converted to hard solid, thermosetting resin cured time and final strength can utilize chemical process to control according to practical situation, and this characteristic of thermosetting resin is widely used in the preparation of RESIN COATING PROPPING AGENT and the reinforcing of unconsolidated sand.In oil reservoir sealing applications, resin has been proved to be able to provide excellent intensity, cementing and chemical resistance, therefore selects thermosetting resin as one of raw materials of the present invention.
In the above-described embodiments, clear water used selects tap water, the constant speed stirrer of the CHANDLER3260 model of CHANDLER company of the U.S. selected by agitator, and maintaining box selects the High Temperature Curing case of the OWC-118 model of Institute for Applied Technology of Shenyang Aerospace University.
The raw material of above-described embodiment directly can be buied from market.
The present invention is according to thermosetting resin cured mechanism, mainly preferably consider three aspects from thermosetting resin, supporting admixture, skeleton packing material, prepare the anchorage liquid system of the oil gas well cementing operation construction operation of a kind of satisfied temperature 30 DEG C ~ 120 DEG C, mechanical property is all better than conventional silicate cement, and perforating and fracturing construction can not affect the integrity of annular space material for sealing.This cementing fluid system cured strength is greater than 35MPa, Young's modulus low (3GPa ~ 8GPa), good toughness (stretch-proof), zero rate of permeation, and between sleeve pipe, the borehole wall, there is stronger adhesive power, good sealing function can be played in reservoir reconstruction operation process, effectively prevent the water breakthrough of annular space oil gas, stop annular space phenomenon with pressure.Because thermosetting resin belongs to zero rate of permeation, highly elastic material, intensity, higher than silicate cement mudstone, during fracturing of separate layers operation, improves the effective sealing between each reservoir, prevents annular space phenomenon with pressure, can reach Oil/gas Well reservoir reconstruction object simultaneously.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (7)
1. a cementing fluid system, is characterized in that, is made up of the component of following weight part:
Thermosetting resin 100 parts, 0.4 ~ 16 part, solidifying agent, skeleton packing material 40 ~ 50 parts, stablizer 2.5 ~ 5 parts, 30 ~ 50 parts, clear water.
2. a kind of cementing fluid system as claimed in claim 1, is characterized in that, described thermosetting resin is 100 parts, solidifying agent is 10 parts, and skeleton packing material is 40 parts, and stablizer is 3 parts, and clear water is 40 parts.
3. a kind of cementing fluid system as claimed in claim 1, is characterized in that, described thermosetting resin is the one or more combination in epoxy resin, resol, furane resin, unsaturated polyester.
4. a kind of cementing fluid system as claimed in claim 1, is characterized in that, described solidifying agent is the one or more combination in aliphatics amine, aromatic amines, amide group amine.
5. a kind of cementing fluid system as claimed in claim 1, is characterized in that, described skeleton packing material is the one or more combination in quartz sand, barite, powdered iron ore.
6. a kind of cementing fluid system as claimed in claim 1, is characterized in that, described stablizer is polyacrylamide, polyvinylpyrrolidone, acrylate copolymer one or more combination.
7. a preparation method for cementing fluid system, is characterized in that, described cementing fluid system and weight proportion thereof comprise thermosetting resin 100 parts, 0.4 ~ 16 part, solidifying agent, skeleton packing material 40 ~ 50 parts, stablizer 2.5 ~ 5 parts, 30 ~ 50 parts, clear water,
Concrete steps are as follows:
(1) thermosetting resin and clear water are all added in stirring arm cup, under the speed of per minute 4000 turns, successively solidifying agent, skeleton packing material, stablizer are added in stirring arm cup in 20s;
(2) under the speed of per minute 14000 turns, stir 40s ~ 50s, complete the preparation of cementing fluid system;
The add-on of above-mentioned raw materials all adds by formula ratio.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543994A (en) * | 2016-09-30 | 2017-03-29 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of film-forming type oil-well cement filtrate reducer and preparation method thereof |
| CN107954682A (en) * | 2016-10-18 | 2018-04-24 | 中国石油化工股份有限公司 | A kind of medium temperature chlorine oxygen magnesium thermosetting resin gelling system and firming body and its preparation method |
| CN108048054A (en) * | 2017-12-28 | 2018-05-18 | 长江大学 | A kind of well cementation elastic fluid and its preparation method and application |
| CN108250376A (en) * | 2017-12-18 | 2018-07-06 | 常熟东南塑料有限公司 | Water-soluble Cementing preparation method of phenolic resin and its device |
| CN108865087A (en) * | 2018-07-19 | 2018-11-23 | 中国石油集团工程技术研究院有限公司 | A kind of thermosetting epoxy resin anchorage liquid |
| CN109054574A (en) * | 2018-07-06 | 2018-12-21 | 西南石油大学 | A kind of cold coating and preparation method thereof improving the first interface agglutination power of well cementation |
| CN109504356A (en) * | 2018-11-21 | 2019-03-22 | 西南石油大学 | A kind of high strength, low elasticity water-soluble resin mortar architecture and its application |
| CN110386777A (en) * | 2018-04-17 | 2019-10-29 | 中国石油天然气股份有限公司 | Cement slurry and preparation method thereof, application |
| CN111662695A (en) * | 2020-06-24 | 2020-09-15 | 四川安钮诺斯油气能源技术有限公司 | Ultralow-density high-strength well cementing fluid system for oil-gas well and preparation method thereof |
| CN112585238A (en) * | 2018-08-30 | 2021-03-30 | 沙特阿拉伯石油公司 | Lost circulation material composition and method for isolating lost circulation zones of a wellbore |
| CN113930200A (en) * | 2020-07-13 | 2022-01-14 | 中国石油化工股份有限公司 | Sealant for treating annulus under pressure and preparation method and application thereof |
| CN114686192A (en) * | 2020-12-25 | 2022-07-01 | 中石化石油工程技术服务有限公司 | High-temperature-resistant high-elasticity epoxy resin well cementing fluid and preparation method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543994A (en) * | 2016-09-30 | 2017-03-29 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of film-forming type oil-well cement filtrate reducer and preparation method thereof |
| CN107954682A (en) * | 2016-10-18 | 2018-04-24 | 中国石油化工股份有限公司 | A kind of medium temperature chlorine oxygen magnesium thermosetting resin gelling system and firming body and its preparation method |
| CN108250376A (en) * | 2017-12-18 | 2018-07-06 | 常熟东南塑料有限公司 | Water-soluble Cementing preparation method of phenolic resin and its device |
| CN108048054A (en) * | 2017-12-28 | 2018-05-18 | 长江大学 | A kind of well cementation elastic fluid and its preparation method and application |
| CN108048054B (en) * | 2017-12-28 | 2020-07-03 | 长江大学 | Elastic fluid for well cementation and preparation method and application thereof |
| CN110386777A (en) * | 2018-04-17 | 2019-10-29 | 中国石油天然气股份有限公司 | Cement slurry and preparation method thereof, application |
| CN110386777B (en) * | 2018-04-17 | 2022-03-01 | 中国石油天然气股份有限公司 | Tough cement slurry and preparation method and application thereof |
| CN109054574A (en) * | 2018-07-06 | 2018-12-21 | 西南石油大学 | A kind of cold coating and preparation method thereof improving the first interface agglutination power of well cementation |
| CN108865087A (en) * | 2018-07-19 | 2018-11-23 | 中国石油集团工程技术研究院有限公司 | A kind of thermosetting epoxy resin anchorage liquid |
| CN112585238A (en) * | 2018-08-30 | 2021-03-30 | 沙特阿拉伯石油公司 | Lost circulation material composition and method for isolating lost circulation zones of a wellbore |
| CN109504356A (en) * | 2018-11-21 | 2019-03-22 | 西南石油大学 | A kind of high strength, low elasticity water-soluble resin mortar architecture and its application |
| CN111662695A (en) * | 2020-06-24 | 2020-09-15 | 四川安钮诺斯油气能源技术有限公司 | Ultralow-density high-strength well cementing fluid system for oil-gas well and preparation method thereof |
| CN113930200A (en) * | 2020-07-13 | 2022-01-14 | 中国石油化工股份有限公司 | Sealant for treating annulus under pressure and preparation method and application thereof |
| CN114686192A (en) * | 2020-12-25 | 2022-07-01 | 中石化石油工程技术服务有限公司 | High-temperature-resistant high-elasticity epoxy resin well cementing fluid and preparation method thereof |
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