CN106520097A - Chemical flushing agent for oil well cement and preparation method and application thereof - Google Patents
Chemical flushing agent for oil well cement and preparation method and application thereof Download PDFInfo
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- CN106520097A CN106520097A CN201610918732.8A CN201610918732A CN106520097A CN 106520097 A CN106520097 A CN 106520097A CN 201610918732 A CN201610918732 A CN 201610918732A CN 106520097 A CN106520097 A CN 106520097A
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- parts
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- oil
- irrigation
- chemical flush
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Classifications
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
-
- 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
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
Abstract
The invention belongs to the technical field of oilfield chemistry and specifically relates to a chemical flushing agent for oil well cement and a preparation method and application thereof. Through researches on a surfactant and a suspending agent, a chemical flushing agent which has high flushing efficiency and a certain viscosity and basically has no influence on performance of cement mortar is formed. According to the invention, the surfactant is researched. Through researches on a nonionic surfactant, an anionic surfactant and a compounded system of the nonionic surfactant and the anionic surfactant, HLB value of the compounded surfactant system is regulated to meet the requirement for preparation of the flushing agent. Through experiments, proper addition amounts of the surfactants and the suspending agent are determined to form the well-cementing flushing agent with low foam and high flushing efficiency.
Description
Technical field
The invention belongs to technical field of oilfield chemistry, and in particular to a kind of oil-well cement chemical flush agent and its preparation side
Method and application, are a kind of petroleum industry oil-well cement chemical flush agent.
Background technology
Irrigation belongs to Cementing, before cementing, is mainly used in cleaning the borehole wall and casing wall mud cake,
Displacement efficiency of cement slurry is improved, improves cement sheath bonding quality.Irrigation generally adopts clear water or adds surface activity in water
Agent, at present, the research of oil-well cement chemical flush agent is mainly the surfactant system of surfactant and compounding, using table
Surface activity specific to the activating agent of face (wettability, permeability and emulsibility etc.) acts on the borehole wall and casing wall, reduces by two boundaries
Face surface tension, strengthens wetting action and flushing action of the flushing liquor to interface.
But, some irrigations do not reach cementing fluid design requirement, be also easy to produce bubble and affect to rinse in there is construction
Fluidity energy, flush efficiency be not high or the problems such as irrigation and cement mortar compatibility difference；Cave in some weak pressure stratum, water-sensitive
Stratum, the use of flushing liquor are also restrained.
The content of the invention
The purpose of the present invention is not enough present in construction for existing chemical flush agent, designs a kind of flush efficiency
It is high, with certain viscosity, on cement slurry property substantially without the chemical flush agent for affecting.
For this purpose, the invention provides a kind of chemical flush agent of oil-well cement, described irrigation is by following mass fraction
Component composition：
5～15 parts of anion surfactant；
2～10 parts of nonionic surfactant；
2～10 parts of suspending agent；
0.3～0.7 part of oil defoamer；
80～95 parts of water.
Described irrigation is made up of the component of following mass fraction：
10 parts of anion surfactant；
6 parts of nonionic surfactant；
6 parts of suspending agent；
0.5 part of oil defoamer；
90 parts of water.
Described anion surfactant is dodecylbenzene sodium sulfonate；Described nonionic surfactant is polyoxy
Vinyl alkyl 2, 2-Oxydiphenol；Described suspending agent is cellulose sodium salt.
Described chemical flush agent is obtained by following process：
Prepare dodecylbenzene sodium sulfonate, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer and clear by mass fraction
Water, sequentially adds dodecylbenzene sodium sulfonate, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer, room in clear water
Stir 40 minutes under the lower 1000r/m rotating speeds of temperature, mix homogeneously obtains required chemical flush agent.
The dodecylbenzene sodium sulfonate of described preparation, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer and
The mass fraction of clear water meets：5～15 parts of dodecylbenzene sodium sulfonate；2～10 parts of polyoxyethylated alkyl phenol；Cellulose sodium salt
2～10 parts；0.3～0.7 part of oil defoamer；80～95 parts of water.
Described chemical flush agent is obtained by following process：DBSA is added in clear water by mass fraction
7 parts of sodium, 3 parts of polyoxyethylated alkyl phenol, 3 parts of cellulose sodium salt, 0.5 part of oil defoamer, stir under 1000r/m rotating speeds under room temperature
40 minutes are mixed, mix homogeneously.
A kind of well cementation irrigation comprising chemical flush agent, irrigation of cementing the well are cement mortar and described chemical flush agent
The mass percent ratio of mixture, wherein described chemical flush agent and cement mortar is：
Cement mortar 90.0%～99%；
Chemical flush agent 1.0%～10.0%.
Described well cementation irrigation is cement mortar and chemical flush agent by mass percentage 95%：5% mixes.
Beneficial effects of the present invention：This oil-well cement that the present invention is provided is with chemical flush agent and preparation method thereof and answers
With, by the research of Surfactant and suspending agent, formed a kind of flush efficiency it is high, with certain viscosity, to cement mortar
Can substantially without the chemical flush agent for affecting.
Specific embodiment
Embodiment 1：
The present embodiment provides a kind of oil-well cement chemical flush agent, the component group of described irrigation by following mass fraction
Into：
5～15 parts of anion surfactant；
2～10 parts of nonionic surfactant；
2～10 parts of suspending agent；
0.3～0.7 part of oil defoamer；
80～95 parts of water.
Further specifically, described irrigation is made up of the component of following mass fraction：
10 parts of anion surfactant；
6 parts of nonionic surfactant；
6 parts of suspending agent；
0.5 part of oil defoamer；
90 parts of water.
Wherein, anion surfactant is dodecylbenzene sodium sulfonate；Described nonionic surfactant is polyoxy
Vinyl alkyl 2, 2-Oxydiphenol；Described suspending agent is cellulose sodium salt；Described oil defoamer also known as modified starch defoamer, be by
The aggregated a kind of existing defoamer of polysiloxanes, emulsifying agent, high activity polyether defoamer, its concrete technology is also existing
There is technology, here is not illustrated, oil defoamer defoaming capacity is strong, consumption is few, suds are lasting, heat stability is good, flowing
Property it is good, have no side effect, convenient transportation etc., there are in high temperature, the solution of high alkalinity extremely strong froth breaking, suds suppressing properties.
The present embodiment is that Surfactant is studied, and is lived by studying nonionic surfactant, anionic surface
Property agent and their compound system, the HLB value for adjusting Combinational Surfactant Systems reaches the requirement for preparing flushing liquor, passes through
Experiment determines the suitable dosage of surfactant and suspending agent, forms low bubble, the well cementation irrigation of high-efficiency rinsing.
Embodiment 2：
The present embodiment mainly illustrates the compound method of chemical flush agent in above-described embodiment 1, obtains especially by following process：
Prepare dodecylbenzene sodium sulfonate, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer and clear by mass fraction
Water（5～15 parts of dodecylbenzene sodium sulfonate；2～10 parts of polyoxyethylated alkyl phenol；2～10 parts of cellulose sodium salt；Oil froth breaking
0.3～0.7 part of agent；80～95 parts of water）, dodecylbenzene sodium sulfonate, polyoxyethylated alkyl phenol, fibre is sequentially added in clear water
The plain sodium salt of dimension, oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, and mix homogeneously obtains required chemical flush agent.
More specifically being equipped with process is：7 parts of dodecylbenzene sodium sulfonate, polyoxy second is added in clear water by mass fraction
3 parts of allylic alkylation 2, 2-Oxydiphenol, 3 parts of cellulose sodium salt, 0.5 part of oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, mix
Close uniform.
Embodiment 3：
The present embodiment provides a kind of well cementation irrigation comprising chemical flush agent, and well cementation irrigation is cement mortar and the chemistry punching
The mass percent ratio of the mixture of lotion, wherein chemical flush agent and cement mortar is：
Cement mortar 90.0%～99%；
Chemical flush agent 1.0%～10.0%.
More specifically, irrigation of cementing the well is cement mortar and chemical flush agent by mass percentage 95%：5% mixes.
Illustrate below in conjunction with specific experimental data.
Embodiment 4：
In the present embodiment, mass fraction adds 7 parts of dodecylbenzene sodium sulfonate, 3 parts of polyoxyethylated alkyl phenol, fibre in clear water
Plain 3 parts of the sodium salt of dimension, 0.5 part of oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, and mix homogeneously obtains chemical punching
Lotion, chemical flush agent is added with the 5.0% of cement mortar total amount ratio, evaluates the developing result of irrigation, by rinsing effect
Rate is tested and is thickened experiment and the well cementation irrigation in the present embodiment is tested, and the data for obtaining are as shown in Table 1 and Table 2：
Table 1：Flush efficiency evaluation test tables of data
Table 2：Not cement consistency in the same time
From Tables 1 and 2, the well cementation irrigation of development, added with the 5.0% of cement total amount ratio, with six fast rotary viscosities
Meter evaluates flush efficiency, is more than 82% to the cleaning efficiency of mixed crude；Under 52 DEG C of 35MPa, 95% cement mortar and 5% irrigation
Mixture thickening experiment, with blank sample contrast, the irrigation on cement mortar be thickened performance without impact.
Embodiment 5：
In the present embodiment, mass fraction adds 5 parts of dodecylbenzene sodium sulfonate, 2 parts of polyoxyethylated alkyl phenol, fibre in clear water
Plain 2 parts of the sodium salt of dimension, 0.3 part of oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, and mix homogeneously obtains chemical punching
Lotion, chemical flush agent is added with the 3.0% of cement mortar total amount ratio, evaluates the developing result of irrigation, by rinsing effect
Rate is tested and is thickened experiment and the well cementation irrigation in the present embodiment is tested, and the data for obtaining are as shown in Table 3 and Table 4：
Table 3：Flush efficiency evaluation test tables of data
Table 4：Not cement consistency in the same time
From table 3 and table 4, the well cementation irrigation of development, added with the 5.0% of cement total amount ratio, with six fast rotary viscosities
Meter evaluates flush efficiency, is more than 78% to the cleaning efficiency of mixed crude；Under 52 DEG C of 35MPa, 97% cement mortar and 3% irrigation
Mixture thickening experiment, with blank sample contrast, the irrigation on cement mortar be thickened performance without impact.
Embodiment 6：
In the present embodiment mass fraction add in clear water 15 parts of dodecylbenzene sodium sulfonate, 10 parts of polyoxyethylated alkyl phenol,
10 parts of cellulose sodium salt, 0.7 part of oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, and mix homogeneously obtains chemistry
Irrigation, chemical flush agent is added with the 4.0% of cement mortar total amount ratio, evaluates the developing result of irrigation, by rinsing
Efficiency is tested and is thickened experiment and the well cementation irrigation in the present embodiment is tested, and the data for obtaining are as shown in table 5 and table 6：
Table 5：Flush efficiency evaluation test tables of data
Table 6：Not cement consistency in the same time
From table 5 and table 6, the well cementation irrigation of development, added with the 5.0% of cement total amount ratio, with six fast rotary viscosities
Meter evaluates flush efficiency, is more than 79% to the cleaning efficiency of mixed crude；Under 52 DEG C of 35MPa, 96% cement mortar and 4% irrigation
Mixture thickening experiment, with blank sample contrast, the irrigation on cement mortar be thickened performance without impact.
Embodiment 7:
In the present embodiment, mass fraction adds 10 parts of dodecylbenzene sodium sulfonate, 6 parts of polyoxyethylated alkyl phenol, fibre in clear water
Plain 6 parts of the sodium salt of dimension, 0.5 part of oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, and mix homogeneously obtains chemical punching
Lotion, chemical flush agent is added with the 5.0% of cement mortar total amount ratio, evaluates the developing result of irrigation, by rinsing effect
Rate is tested and is thickened experiment and the well cementation irrigation in the present embodiment is tested, and the data for obtaining are as shown in table 7 and table 8：
Table 7：Flush efficiency evaluation test tables of data
Table 8：Not cement consistency in the same time
From Tables 1 and 2, the well cementation irrigation of development, added with the 5.0% of cement total amount ratio, with six fast rotary viscosities
Meter evaluates flush efficiency, is more than 85% to the cleaning efficiency of mixed crude；Under 52 DEG C of 35MPa, 95% cement mortar and 5% irrigation
Mixture thickening experiment, with blank sample contrast, the irrigation on cement mortar be thickened performance without impact.
Exemplified as above is only the illustration to the present invention, does not constitute the restriction to protection scope of the present invention, all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.
Claims (8)
1. a kind of oil-well cement chemical flush agent, it is characterised in that：Component group of the described irrigation by following mass fraction
Into：
5～15 parts of anion surfactant；
2～10 parts of nonionic surfactant；
2～10 parts of suspending agent；
0.3～0.7 part of oil defoamer；
80～95 parts of water.
2. oil-well cement as claimed in claim 1 chemical flush agent, it is characterised in that：Described irrigation is by following quality
The component composition of number：
10 parts of anion surfactant；
6 parts of nonionic surfactant；
6 parts of suspending agent；
0.5 part of oil defoamer；
90 parts of water.
3. oil-well cement as claimed in claim 1 or 2 chemical flush agent, it is characterised in that：Described anionic surface is lived
Property agent is dodecylbenzene sodium sulfonate；Described nonionic surfactant is polyoxyethylated alkyl phenol；Described suspending agent
It is cellulose sodium salt.
4. oil-well cement as claimed in claim 3 chemical flush agent, it is characterised in that：Described chemical flush agent is by such as
Lower process is obtained：
Prepare dodecylbenzene sodium sulfonate, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer and clear by mass fraction
Water, sequentially adds dodecylbenzene sodium sulfonate, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer, room in clear water
Stir 40 minutes under the lower 1000r/m rotating speeds of temperature, mix homogeneously obtains required chemical flush agent.
5. oil-well cement as claimed in claim 4 chemical flush agent, it is characterised in that the detergent alkylate of described preparation
The mass fraction of sodium sulfonate, polyoxyethylated alkyl phenol, cellulose sodium salt, oil defoamer and clear water meets：Detergent alkylate
5～15 parts of sodium sulfonate；2～10 parts of polyoxyethylated alkyl phenol；2～10 parts of cellulose sodium salt；0.3～0.7 part of oil defoamer；
80～95 parts of water.
6. oil-well cement as claimed in claim 3 chemical flush agent, it is characterised in that：Described chemical flush agent is by such as
Lower process is obtained：7 parts of dodecylbenzene sodium sulfonate, 3 parts of polyoxyethylated alkyl phenol, fiber is added in clear water by mass fraction
3 parts of plain sodium salt, 0.5 part of oil defoamer, stir 40 minutes under 1000r/m rotating speeds under room temperature, mix homogeneously.
7. the well cementation irrigation of the chemical flush agent in a kind of any one comprising claim 1～6, it is characterised in that：Well cementation
Irrigation is the mass percent of the mixture of cement mortar and the chemical flush agent, wherein described chemical flush agent and cement mortar
Than for：
Cement mortar 90.0%～99%；
Chemical flush agent 1.0%～10.0%.
8. well cementation irrigation as claimed in claim 7, it is characterised in that：Described well cementation irrigation is cement mortar and chemistry punching
Lotion by mass percentage 95%：5% mixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918732.8A CN106520097A (en) | 2016-10-21 | 2016-10-21 | Chemical flushing agent for oil well cement and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918732.8A CN106520097A (en) | 2016-10-21 | 2016-10-21 | Chemical flushing agent for oil well cement and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107418540A (en) * | 2017-06-13 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | Well cementation irrigation |
| CN109337661A (en) * | 2018-11-19 | 2019-02-15 | 安东石油技术（集团）有限公司 | Low bubble displacement of reservoir oil type irrigation of one kind and its preparation method and application |
| CN110846013A (en) * | 2019-11-26 | 2020-02-28 | 西安建筑科技大学 | Well cementation flushing fluid for oil-based drilling fluid and preparation and application methods thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107418540A (en) * | 2017-06-13 | 2017-12-01 | 中国石油集团渤海钻探工程有限公司 | Well cementation irrigation |
| CN109337661A (en) * | 2018-11-19 | 2019-02-15 | 安东石油技术（集团）有限公司 | Low bubble displacement of reservoir oil type irrigation of one kind and its preparation method and application |
| CN110846013A (en) * | 2019-11-26 | 2020-02-28 | 西安建筑科技大学 | Well cementation flushing fluid for oil-based drilling fluid and preparation and application methods thereof |
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