CN107338027A - A kind of insulating liquid and preparation method thereof - Google Patents
A kind of insulating liquid and preparation method thereof Download PDFInfo
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- CN107338027A CN107338027A CN201710424485.0A CN201710424485A CN107338027A CN 107338027 A CN107338027 A CN 107338027A CN 201710424485 A CN201710424485 A CN 201710424485A CN 107338027 A CN107338027 A CN 107338027A
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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
- C09K8/40—Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
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Abstract
The present invention relates to a kind of insulating liquid and preparation method thereof, belongs to cementing technology field.The present invention includes following raw material：10~12 portions of mixed liquors, 30~40 parts of reaction products, 6~8 parts of sodium lignin sulfonates, 3~5 parts of xanthans, 6~8 parts of HPMAs and 100~120 parts of water；Described reaction product is to react what is obtained by the raw material of following weight：15~20g lauryl diglycidyl ethers, 200~300mL mass fractions are 5% p-methyl benzenesulfonic acid solution, 50~60mL dioxanes, 8~10g sodium chloroacetates；Described mixture is mixed to get by the raw material of following weight：200~300g upper liquids, 15~20g potassium nitrate and 3~5g fatty alcohol alkoxy ethers.Insulating liquid prepared by the present invention does not contain solid, and modest viscosity, and good fluidity is good in high temperature and high salt condition stability inferior, and well cementation interface agglutination quality is good, and high temperature resistance is up to 200~250 DEG C.
Description
Technical field
The present invention relates to a kind of insulating liquid and preparation method thereof, belongs to cementing technology field.
Background technology
Saline bed section is cemented the well, particularly deep-well saline bed and the well cementation of compound saline bed, is to have technology to be solved difficult all the time
Topic.Bored on the construction of the part in oil field and run into saline bed, each oil company also encounters into the drilling well business of overseas foray
Saline bed well cementation problem.Although saline bed is not the purpose payzone of oil gas drilling, saline bed section cementing quality is particularly deep
Can well salt layer of paste and compound be directly connected to along layer of paste complete next step operation and the key into well.Influence saline bed well cementation matter
The factor of amount is a lot, including formation condition, borehole condition, property of drilling fluid, cement slurry property and flushing liquor and isolation fluidity
Can etc..Research currently for saline bed anchorage liquid is relatively more, in particular for grinding for salt resistant drilling and salt resistance cement
Study carefully and using all than wide, but the contact stain problem of drilling fluid and cement mortar, the problem of displacement efficiency of cement slurry is low according to
So it is difficult to solve.
To improve the cementing quality of cement mortar, one section of special slurry is squeezed among drilling fluid and cement mortar so as to propose
Body, the borehole wall and casing wall, packing drilling fluid and cement mortar can be preferably washed away, pollutant is avoided contact with and improves cement mortar
Displacement efficiency, this special slurry are referred to as insulating liquid.
At present, the heavy weight additives of the weighting material as insulating liquid such as barite, iron ore are commonly used, such insulating liquid is improving admittedly
The problem of positive role being served in terms of well quality, but being can not ignore there is also some：（1）Heavy weight additive needs suspension stabilizer
Suspended, suspending agent suspendability under the conditions of high temperature, saliferous is deteriorated, and causes insulating liquid bad stability；（2）It is highdensity
Insulating liquid needs to add substantial amounts of weighting material, in order to ensure the stability of insulating liquid, it is necessary to add more suspension stabilizers,
Cause isolation fluid viscosity big, mobile performance variation, be unfavorable for improving displacement efficiency；（3）Aggravated due to being used as using barite etc.
Agent, therefore contain certain solid phase in insulating liquid, can be to the major oil such as underground Open-Hole Section, sandstone particularly higher to permeability
Interval pollutes, and influences interface agglutination quality of cementing the well.
Therefore, the insulating liquid that a kind of viscosity is low, high salt stability inferior is good is developed, to realizing effective cleaning with washing away on the borehole wall
False filter cake and greasy dirt etc., and formed with being of great significance beneficial to the water wet environment for improving Cementation Quality, tool.
The content of the invention
The technical problems to be solved by the invention：For being used as heavy weight additive using weighting materials such as barite, iron ores at present
There is the defects of big viscosity, high salt stability inferior difference in the insulating liquid of preparation, there is provided a kind of insulating liquid and preparation method thereof.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of insulating liquid, include the raw material of following parts by weight：
10~12 portions of mixed liquors, 30~40 parts of reaction products, 6~8 parts of sodium lignin sulfonates, 3~5 parts of xanthans, 6~8 parts it is poly-
Maleic anhydride and 100~120 parts of water；
Described reaction product is to react what is obtained by the raw material of following weight：15~20g lauryl diglycidyl ethers, 200
~300mL mass fractions are 5% p-methyl benzenesulfonic acid solution, 50~60mL dioxanes, 8~10g sodium chloroacetates；
Described mixture is mixed to get by the raw material of following weight：200~300g upper liquids, 15~20g potassium nitrate and 3
~5g fatty alcohol alkoxy ethers；
Specific preparation process is as follows：
（1）The preparation of mixed liquor：Ripe fresh persimmon is subjected to fermentation 25~30 days through washing, dry, clean, after stripping and slicing, then
Stand, filter after being mixed with deionized water, obtain filtrate, after filtrate and sodium hydroxide solution are mixed, stirring reaction 30~
40min, then centrifuge, upper liquid is obtained, upper liquid, potassium nitrate and fatty alcohol alkoxy ether are mixed, obtain mixed liquor；
（2）The preparation of reaction product：After 70~80 DEG C mix lauryl diglycidyl ether and p-methyl benzenesulfonic acid solution, then
Dioxanes is added, 5~6h of stirring reaction, after reaction terminates, product is concentrated, obtains concentrate, by concentrate, cyclohexane and chlorine
After sodium acetate mixing, after being mixed at 95~105 DEG C, it is 10.6~10.8 to add pH adjusting agent regulation pH, and insulated and stirred is anti-
6~7h is answered, reaction terminates, and obtains reaction product；
（3）The preparation of insulating liquid：Mixed liquor, reaction product, sodium lignin sulfonate, xanthans, HPMA and water are mixed
Afterwards, insulating liquid is produced.
The dosage of described ripe fresh persimmon is 3~4kg.
The mass fraction of described sodium hydroxide solution is 15%, and the dosage of sodium hydroxide solution is 400~500mL.
The dosage of described deionized water is 1~2L.
Described pH adjusting agent is that mass fraction is 15% sodium hydroxide solution.
Compared with other method, advantageous effects are the present invention：
（1）The present invention is using persimmon as raw material, fermented generation organic carboxyl acid, and organic carboxyl acid and alkali are carried out into saponification, obtained organic
Carboxylate, organic carboxylate and potassium nitrate compound do heavy weight additive, and organic carboxylate can also reduce the viscosity of crude oil, at the same with fat
The problem of alcohol alkoxy ether compounding can overcome the disadvantages that carboxylate saline-alkaline tolerance difference；
（2）The present invention, through hydrolyzing, being condensed, obtains DGE carboxylate using lauryl diglycidyl ether as raw material,
DGE carboxylate, organic carboxylate and fatty alcohol alkoxy ether coordinate Anionic-nonionic therein at interface
Eutectoid content, the adsorbed film of formation is more firm, while nonionic surface active agent is due to hydrogen bond action, unwise to calcium ions and magnesium ions
Sense, therefore the stability of insulating liquid and anti-rock salt ability can be improved.
Embodiment
The ripe fresh persimmons of 3~4kg are weighed first, after being eluted with water, are positioned over shady place and are dried 2~3 days, then by persimmon
The base of a fruit is removed, and the persimmon after stalk is cut into 3cm × 3cm × 3cm~5cm × 5cm × 5cm fritter, persimmon block is added to and gone out
In bacterium beaker, and with plastic sheeting sealed beaker mouth, after beaker is moved into shady place spontaneous fermentation 25~30 days, film is gone
Remove, and stir 10~15min, then 1~2L deionized waters are added into beaker, after continuing 5~10min of stirring, stand overnight, obtain
To product, product is filtered, obtains filtrate, it is that 15% sodium hydroxide is molten that filtrate, which is added to, and fills 400~500mL mass fractions
In the beaker of liquid, after 30~40min of stirring reaction, it is transferred in centrifuge, is centrifuged with 5000~6000r/min rotating speed
15~20min, upper liquid is obtained, upper liquid is added in beaker, then 15~20g potassium nitrate and 3~5g are added into beaker
Fatty alcohol alkoxy ether, is stirred 15~20min, obtains mixed liquor, weighs the addition of 15~20g lauryl diglycidyl ethers
To filling in the three-necked flask that 200~300mL mass fractions are 5% p-methyl benzenesulfonic acid solution, flask is placed in water-bath, controlled
Temperature processed is at 70~80 DEG C, and after being stirred 15~20min, 50~60mL dioxanes is added into flask, is incubated magnetic agitation
5~6h is reacted, question response terminates, obtains product and move into Rotary Evaporators, 30~40min of concentrated by rotary evaporation, obtains concentrate,
Concentrate is added in the three-necked flask for filling 200~300mL hexamethylenes, flask is placed in oil bath pan, control temperature exists
95~100 DEG C, 8~10g sodium chloroacetates are added, after being stirred 5~10min, it is 15% sodium hydroxide to add mass fraction
Solution regulation pH is 10.6~10.8, and 6~7h of stirring reaction, reaction terminates, and obtains reaction product, counts in parts by weight, takes 10
~12 portions of mixed liquors, 30~40 parts of reaction products, 6~8 parts of sodium lignin sulfonates, 3~5 parts of xanthans, 6~8 parts of polies
Acid anhydride and 100~120 parts of water, are stirred 30~40min, you can obtain insulating liquid.
Example 1
The ripe fresh persimmons of 3kg are weighed first, after being eluted with water, shady place is positioned over and dries 2 days, then the calyx and receptacle of a persimmon is removed, will
Persimmon after stalk is cut into 3cm × 3cm × 3cm fritter, and persimmon block is added in sterilizing beaker, and is sealed with plastic sheeting
Beaker mouth, after beaker is moved into shady place spontaneous fermentation 25 days, film is removed, and stir 10min, then 1L is added into beaker
Deionized water, continue after stirring 5min, stand overnight, obtain product, product is filtered, obtain filtrate, filtrate is added to Sheng
Have in the beaker that 400mL mass fractions are 15% sodium hydroxide solution, after stirring reaction 30min, be transferred in centrifuge, with
5000r/min rotating speed centrifuges 15min, obtains upper liquid, upper liquid is added in beaker, then added into beaker
15g potassium nitrate and 3g fatty alcohol alkoxy ethers, are stirred 15min, obtain mixed liquor, weigh 15g dodecyl glycidyls
Ether, which is added to, to be filled in the three-necked flask that 200mL mass fractions are 5% p-methyl benzenesulfonic acid solution, and flask is placed in water-bath, controlled
Temperature processed is at 70 DEG C, and after being stirred 15min, 50mL dioxanes, insulation magnetic agitation reaction 5h, question response are added into flask
Terminate, obtain product and move into Rotary Evaporators, concentrated by rotary evaporation 30min, obtain concentrate, concentrate is added to and filled
In the three-necked flask of 200mL hexamethylenes, flask is placed in oil bath pan, control temperature adds 8g sodium chloroacetates, stirred at 95 DEG C
After mixing mixing 5min, it is that 15% sodium hydroxide solution regulation pH is 10.6 to add mass fraction, and stirring reaction 6h, reaction terminates,
Reaction product is obtained, is counted in parts by weight, takes 10 portions of mixed liquors, 30 parts of reaction products, 6 parts of sodium lignin sulfonates, 3 parts of xanthan
Glue, 6 parts of HPMAs and 100 parts of water, are stirred 30min, you can obtain insulating liquid.
Example 2
The ripe fresh persimmons of 4kg are weighed first, after being eluted with water, shady place is positioned over and dries 3 days, then the calyx and receptacle of a persimmon is removed, will
Persimmon after stalk is cut into 4cm × 4cm × 4cm fritter, and persimmon block is added in sterilizing beaker, and is sealed with plastic sheeting
Beaker mouth, after beaker is moved into shady place spontaneous fermentation 28 days, film is removed, and stir 13min, then 2L is added into beaker
Deionized water, continue after stirring 8min, stand overnight, obtain product, product is filtered, obtain filtrate, filtrate is added to Sheng
Have in the beaker that 450mL mass fractions are 15% sodium hydroxide solution, after stirring reaction 35min, be transferred in centrifuge, with
5500r/min rotating speed centrifuges 18min, obtains upper liquid, upper liquid is added in beaker, then added into beaker
18g potassium nitrate and 4g fatty alcohol alkoxy ethers, are stirred 18min, obtain mixed liquor, weigh 18g dodecyl glycidyls
Ether, which is added to, to be filled in the three-necked flask that 250mL mass fractions are 5% p-methyl benzenesulfonic acid solution, and flask is placed in water-bath, controlled
Temperature processed is at 75 DEG C, and after being stirred 18min, 55mL dioxanes, insulation magnetic agitation reaction 6h, question response are added into flask
Terminate, obtain product and move into Rotary Evaporators, concentrated by rotary evaporation 35min, obtain concentrate, concentrate is added to and filled
In the three-necked flask of 250mL hexamethylenes, flask is placed in oil bath pan, control temperature adds 9g sodium chloroacetates, stirred at 98 DEG C
After mixing mixing 8min, it is that 15% sodium hydroxide solution regulation pH is 10.7 to add mass fraction, and stirring reaction 7h, reaction terminates,
Reaction product is obtained, is counted in parts by weight, takes 11 portions of mixed liquors, 35 parts of reaction products, 7 parts of sodium lignin sulfonates, 4 parts of xanthan
Glue, 7 parts of HPMAs and 110 parts of water, are stirred 35min, you can obtain insulating liquid.
Example 3
The ripe fresh persimmons of 4kg are weighed first, after being eluted with water, shady place is positioned over and dries 3 days, then the calyx and receptacle of a persimmon is removed, will
Persimmon after stalk is cut into 5cm × 5cm × 5cm fritter, and persimmon block is added in sterilizing beaker, and is sealed with plastic sheeting
Beaker mouth, after beaker is moved into shady place spontaneous fermentation 30 days, film is removed, and stir 15min, then 2L is added into beaker
Deionized water, continue after stirring 10min, stand overnight, obtain product, product is filtered, obtain filtrate, filtrate is added to Sheng
Have in the beaker that 500mL mass fractions are 15% sodium hydroxide solution, after stirring reaction 40min, be transferred in centrifuge, with
6000r/min rotating speed centrifuges 20min, obtains upper liquid, upper liquid is added in beaker, then added into beaker
20g potassium nitrate and 5g fatty alcohol alkoxy ethers, are stirred 20min, obtain mixed liquor, weigh 20g dodecyl glycidyls
Ether, which is added to, to be filled in the three-necked flask that 300mL mass fractions are 5% p-methyl benzenesulfonic acid solution, and flask is placed in water-bath, controlled
Temperature processed is at 80 DEG C, and after being stirred 20min, 60mL dioxanes, insulation magnetic agitation reaction 6h, question response are added into flask
Terminate, obtain product and move into Rotary Evaporators, concentrated by rotary evaporation 40min, obtain concentrate, concentrate is added to and filled
In the three-necked flask of 300mL hexamethylenes, flask is placed in oil bath pan, control temperature adds 10g sodium chloroacetates at 100 DEG C,
After being stirred 10min, it is that 15% sodium hydroxide solution regulation pH is 10.8 to add mass fraction, stirring reaction 7h, reaction knot
Beam, reaction product is obtained, is counted in parts by weight, take 12 portions of mixed liquors, 40 parts of reaction products, 8 parts of sodium lignin sulfonates, 5 parts of Huangs
Virgin rubber, 8 parts of HPMAs and 120 parts of water, are stirred 40min, you can obtain insulating liquid.
Insulating liquid obtained by above-described embodiment is detected with conventional insulating liquid, and contrasted, as a result as shown in Table 1.
Table one：
Remarks：1# is conventional insulating liquid.
As seen from the above table, present invention isolation fluid viscosity is small, and rheological characteristic scope is small under high salt, and stability is good.
Claims (5)
1. a kind of insulating liquid, it is characterised in that include the raw material of following parts by weight：
10~12 portions of mixed liquors, 30~40 parts of reaction products, 6~8 parts of sodium lignin sulfonates, 3~5 parts of xanthans, 6~8 parts it is poly-
Maleic anhydride and 100~120 parts of water；
Described reaction product is to react what is obtained by the raw material of following weight：15~20g lauryl diglycidyl ethers, 200
~300mL mass fractions are 5% p-methyl benzenesulfonic acid solution, 50~60mL dioxanes, 8~10g sodium chloroacetates；
Described mixture is mixed to get by the raw material of following weight：200~300g upper liquids, 15~20g potassium nitrate and 3
~5g fatty alcohol alkoxy ethers；
Specific preparation process is as follows：
（1）The preparation of mixed liquor：Ripe fresh persimmon is subjected to fermentation 25~30 days through washing, dry, clean, after stripping and slicing, then
Stand, filter after being mixed with deionized water, obtain filtrate, after filtrate and sodium hydroxide solution are mixed, stirring reaction 30~
40min, then centrifuge, upper liquid is obtained, upper liquid, potassium nitrate and fatty alcohol alkoxy ether are mixed, obtain mixed liquor；
（2）The preparation of reaction product：After 70~80 DEG C mix lauryl diglycidyl ether and p-methyl benzenesulfonic acid solution, then
Dioxanes is added, 5~6h of stirring reaction, after reaction terminates, product is concentrated, obtains concentrate, by concentrate, cyclohexane and chlorine
After sodium acetate mixing, after being mixed at 95~105 DEG C, it is 10.6~10.8 to add pH adjusting agent regulation pH, and insulated and stirred is anti-
6~7h is answered, reaction terminates, and obtains reaction product；
（3）The preparation of insulating liquid：Mixed liquor, reaction product, sodium lignin sulfonate, xanthans, HPMA and water are mixed
Afterwards, insulating liquid is produced.
2. according to a kind of insulating liquid described in claim 1, it is characterised in that the dosage of described ripe fresh persimmon is 3
~4kg.
3. according to a kind of insulating liquid described in claim 1, it is characterised in that the mass fraction of described sodium hydroxide solution
For 15%, the dosage of sodium hydroxide solution is 400~500mL.
4. according to a kind of insulating liquid described in claim 1, it is characterised in that the dosage of described deionized water is 1~2L.
5. according to a kind of insulating liquid described in claim 1, it is characterised in that described pH adjusting agent is that mass fraction is
15% sodium hydroxide solution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710424485.0A CN107338027A (en) | 2017-06-07 | 2017-06-07 | A kind of insulating liquid and preparation method thereof |
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| CN201710424485.0A CN107338027A (en) | 2017-06-07 | 2017-06-07 | A kind of insulating liquid and preparation method thereof |
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| CN103554292A (en) * | 2013-11-15 | 2014-02-05 | 西安石油大学 | Method for preparing environment-friendly chemical for oil fields by using persimmon peel pectin and application of chemical |
| CN103555299A (en) * | 2013-11-15 | 2014-02-05 | 西安石油大学 | Method for preparing environment-friendly thickening agent for oil field from persimmon peels and application of thickening agent |
| CN103756654A (en) * | 2014-01-16 | 2014-04-30 | 中国石油集团渤海钻探工程有限公司 | Salt-resistant high-density isolating liquid and preparation method thereof |
| CN104449621A (en) * | 2014-12-18 | 2015-03-25 | 中国石油大学(华东) | Efficient well-cementing flushing fluid system |
| CN104449606A (en) * | 2013-09-13 | 2015-03-25 | 天津中油渤星工程科技有限公司 | High temperature resistant well-cementing spacer fluid and preparation method thereof |
| CN106221683A (en) * | 2016-07-07 | 2016-12-14 | 中国石油集团川庆钻探工程有限公司 | A kind of preparation method of water-base drilling fluid well cementation insulating liquid |
-
2017
- 2017-06-07 CN CN201710424485.0A patent/CN107338027A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126017A (en) * | 2006-08-15 | 2008-02-20 | 中国石油天然气集团公司 | Insulating liquid for injecting cement in oil well |
| CN102337108A (en) * | 2011-10-28 | 2012-02-01 | 西南石油大学 | Efficient anti-pollution isolation liquid for well cementation and preparation method thereof |
| CN104449606A (en) * | 2013-09-13 | 2015-03-25 | 天津中油渤星工程科技有限公司 | High temperature resistant well-cementing spacer fluid and preparation method thereof |
| CN103554292A (en) * | 2013-11-15 | 2014-02-05 | 西安石油大学 | Method for preparing environment-friendly chemical for oil fields by using persimmon peel pectin and application of chemical |
| CN103555299A (en) * | 2013-11-15 | 2014-02-05 | 西安石油大学 | Method for preparing environment-friendly thickening agent for oil field from persimmon peels and application of thickening agent |
| CN103756654A (en) * | 2014-01-16 | 2014-04-30 | 中国石油集团渤海钻探工程有限公司 | Salt-resistant high-density isolating liquid and preparation method thereof |
| CN104449621A (en) * | 2014-12-18 | 2015-03-25 | 中国石油大学(华东) | Efficient well-cementing flushing fluid system |
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Application publication date: 20171110 |