CN106833573B - A kind of plugging agent and its preparation method and application - Google Patents
A kind of plugging agent and its preparation method and application Download PDFInfo
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- CN106833573B CN106833573B CN201611234660.1A CN201611234660A CN106833573B CN 106833573 B CN106833573 B CN 106833573B CN 201611234660 A CN201611234660 A CN 201611234660A CN 106833573 B CN106833573 B CN 106833573B
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/5045—Compositions based on water or polar solvents containing inorganic compounds
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/5086—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Abstract
The present invention provides a kind of plugging agent and its preparation method and application.By weight percentage, the raw material components of the plugging agent include the silicon mud of 8%-15%, the ageing oil of 5%-10%, the vermiculite power of 1%-3%, the walnut shell powder of 2%-4%, the sulfonated gilsonite powder of 1%-3%, the KYPAM polymer of 0.3%-0.8%, the anionic cellulose ether of 0.2%-0.6%, the alpha-olefin sodium sulfonate of 0.2%-0.5% and the water of surplus.Plugging agent provided by the invention and preparation method thereof can be realized the recycling of silicon mud and ageing oil resource, while the plugging agent prepared has the performances such as good heat-resistant salt-resistant, is capable of the technical application of entirely appropriate high temperature and high salt oil deposit oil-water well profile control and water plugging.
Description
Technical field
The invention belongs to oil-water well profile control and water plugging technology field, it is related to a kind of plugging agent and its preparation method and application.
Background technique
Silicon mud is product of the oil sludge after process, and oil sludge refers to the oil tank, settling tank, dirt of oil recovery factory's multi-purpose station
Water pot, oil separator, landing bottom of pond mud, drilling well, operation, conduit wiring piercing and the ground sludge generated.Silicon mud has become oil field and opens
One of the major pollutants generated during hair.In recent years, since the gradual perfection of Environmental Protection in China regulation and group company make
The requirement of Green Development, silicon mud governing problem increasingly cause the concern of people.Liaohe Oil Field generates a large amount of oil sludges every year, due to
Its is complex in composition, causes the separation of silicon mud difficult, and prior art processing cost is high, and harmless treatment is difficult, while Liaohe Oil Field is refined
Oily factory's sump oil station ground crude oil, the oil slick on sewage precipitation tank top, the sump oil in Sewage Disposal recycling pond, dehydrator grease
The a large amount of ageing oils of the generations such as interface intermediate layer, the complicated component of ageing oil, relative density, viscosity, asphalt colloid content
Height also causes containing metals, these ingredients such as higher calcium, sodium, magnesium in addition in addition to containing a large amount of gum asphalt in ageing oil
Ageing oil High water cut, dehydration are difficult.Therefore, there is an urgent need to develop a kind of processing techniques of high efficiency low cost, realize silicon mud and aging
The recycling of oily resource.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of plugging agent and preparation method thereof and answer
With.The preparation method of the plugging agent can be realized the recycling of silicon mud and ageing oil resource, while the plugging agent prepared is with good
The performances such as good heat-resistant salt-resistant, are capable of the technical application of entirely appropriate high temperature and high salt oil deposit oil-water well profile control and water plugging.
The purpose of the present invention is achieved by the following technical programs:
The present invention provides a kind of plugging agent, and by weight percentage, the raw material components of the plugging agent include:
In above-mentioned plugging agent, it is preferable that the KYPAM polymer include KYPAM-1S, KYPAM-2S, KYPAM-3S and
One of KYPAM-4S etc. or a variety of combinations are produced by Beijing perseverance dimerization work group company.
In above-mentioned plugging agent, it is preferable that the anionic cellulose ether may include carboxymethyl cellulose and/or poly- yin
Ion fiber element, but not limited to this.
The present invention also provides the preparation methods of above-mentioned plugging agent comprising following steps:
Silicon mud and ageing oil are added in reaction kettle by step 1, and stirring at normal temperature is uniform；
Step 2 is added vermiculite power into reaction kettle and walnut shell powder, stirring at normal temperature is uniform；
Step 3 heats up reaction kettle, and sulfonated gilsonite powder, KYPAM polymer, anionic fibre are added into reaction kettle
Plain ether and alpha-olefin sodium sulfonate are tieed up, is stirred evenly, is down to room temperature to temperature of reaction kettle, obtains plugging agent.
In above-mentioned preparation method, it is preferable that in step 1, the time of stirring is 10-20min；The revolving speed of stirring is
200-300rpm。
In above-mentioned preparation method, it is preferable that in step 2, the time of stirring is 5-10min；The revolving speed of stirring is 200-
300rpm。
In above-mentioned preparation method, it is preferable that in step 3, reaction kettle is warming up to 65-80 DEG C.
In above-mentioned preparation method, it is preferable that in step 3, the time of stirring is 10-15min；The revolving speed of stirring is
200-300rpm。
The present invention also provides application of the above-mentioned plugging agent in high temperature and high salt oil deposit oil-water well profile control and water plugging.
Silicon mud of the present invention is by-product of the oil sludge after process during oil extraction in oil field, from oil
, there is good compatibility in hiding with oil reservoir, while siliceous mixture content is higher in silicon mud, effectively increases the plugging agent of preparation
Heat resistance and plugging strength, while solving silicon mud processing problem, it realizes and recycles, it is stifled that silicon mud is used to prepare tune
Profile control cost had both been saved in agent, is also saved silicon mud processing cost and is therefore had a good application prospect, all oil extraction in oil field
Generated silicon mud may be applicable to the present invention in the process.
Ageing oil of the present invention be oil extraction in oil field during, after emulsification of crude oil, gradually coalesced at oil-water interfaces
It is formed at certain thickness, generated ageing oil may be applicable to the present invention during all oil extraction in oil field.
Vermiculite power of the present invention is heated to be expanded, and volume increases 18-25 times, while curved in scratching, and have good
Good expansion character and toughness, can be improved the plugging strength of plugging agent.
Lignin, cellulose and hemicellulose account for 95% or more in walnut shell powder of the present invention, and tune can be improved
The mechanical strength of blocking agent increases plugging agent sealing characteristics.
Sulfonated gilsonite powder of the present invention is a kind of anionic high polymer, has good emulsifiability, temperature resistance
Property is higher, simultaneously as sulfonated gilsonite powder contains sulfonic group, hydration is very strong, when being adsorbed on shale interface, can prevent
The aquation dispersion of shale particle plays the role of that anti-collapse, not soluble in water part can fill pore throat again and plugging action is played in crack.
KYPAM polymer of the present invention thermal stability with higher and anti-salt property, degree of hydrolysis 20%-
30%, molecular weight is 12,000,000-1,600 ten thousand, its main feature is that being able to maintain higher for (>=90 DEG C) under the conditions of high-temperature oil reservoir
Thermal stability.Under 90 DEG C of oxygen free conditions, viscosity retention ratio >=90% after 90 days compares conventional polymer under the conditions of high salinity
Efficient Adhesive Promotion is more preferable, which saves 15-20%, greatly reduces operating cost, and can be effective
Raising recovery ratio.
Anionic cellulose ether of the present invention has good heat-resistant stability and salt tolerance, while having good
Good suspension, dispersibility, thickening property, gluing and emulsibility.
Alpha-olefin sodium sulfonate of the present invention has the characteristics of good biodegradability, nonhazardous, is a kind of
Green product has preferable thermo-salt resistance, can control steamchanneling, overcome gravity segregation, reduce viscous fingering,
Steam mobility is reduced, steam injection profile is adjusted, increases sweep efficiency, improves heavy oil recovery rate.
Plugging agent provided by the invention and preparation method thereof can be realized the recycling of silicon mud and ageing oil resource, make simultaneously
Standby plugging agent has the performances such as good heat-resistant salt-resistant, is capable of the skill of entirely appropriate high temperature and high salt oil deposit oil-water well profile control and water plugging
Art application.
Specific embodiment
In order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood, now to skill of the invention
Art scheme carries out described further below, but should not be understood as that limiting the scope of the invention.
In raw material employed in embodiment, silicon mud and ageing oil are the by-product generated in the oil recovery process of Liaohe Oil Field；
Other raw material components are commercially available.
Embodiment 1
The present embodiment provides a kind of plugging agents, and by weight percentage, the raw material components of the plugging agent include:
The present embodiment also provides the preparation method of above-mentioned plugging agent, carries out weighing raw material components according to aforementioned proportion, the system
Preparation Method the following steps are included:
Silicon mud and ageing oil are added in reaction kettle by step 1, and stirring at normal temperature is uniform, mixing time 15min, stirring
Revolving speed is 250rpm；
Vermiculite power and walnut shell powder are added into reaction kettle for step 2, and stirring at normal temperature is uniform, and mixing time 7min is stirred
Mixing revolving speed is 250rpm；
Step 3 heats up reaction kettle, and sulfonated gilsonite powder, KYPAM-3S, polyanion fiber are added into reaction kettle
Element and alpha-olefin sodium sulfonate, stir evenly, mixing time 13min, speed of agitator 250rpm is down to often to temperature of reaction kettle
Temperature obtains plugging agent.
Following correlated performance evaluation is made to plugging agent manufactured in the present embodiment:
(1) thermal stability is tested
Plugging agent manufactured in the present embodiment is taken, behind its static 24 hours completely condensation, the survey of heat resistance is carried out to it
Examination experiment, plugging agent test result under 200 DEG C of hot conditions are shown in Table 1.
Table 1
| Ageing time (h) | 24 | 36 | 48 | 60 | 90 | 142 | 360 | 480 |
| Form | Completely | Completely | Completely | Completely | Completely | Completely | Completely | Aquation |
| Weight-loss ratio (%) | 1.7 | 2.8 | 3.2 | 4.1 | 4.4 | 5.2 | 6.3 | 19.8 |
| Shrinking percentage (%) | 1.0 | 1.2 | 1.6 | 1.9 | 2.1 | 2.4 | 3.2 | 11.7 |
The test of above-mentioned heat resistance the result shows that: plugging agent provided in this embodiment in 200 DEG C of high temperature 15d, condensation
Plugging agent form is almost unchanged, and after 20d, plugging agent structure changes, and starts high temperature aquation.It is therefore seen that the plugging agent
With good high temperature resistance, the temperature condition of high-temperature oil reservoir can adapt to.
(2) salt resistant character evaluation experimental
According to the raw material components of the present embodiment, wherein water uses salinity for the water of 110000mg/L, is configured to adjust
Blocking agent carries out salt resistant character test to it, tests viscosity change situation under the conditions of synthermal, and test result is shown in Table 2.
Table 2
| Temperature, DEG C | 90 | 110 | 130 | 150 | 170 | 190 | 200 | 220 |
| Viscosity, mPas | 38506 | 31214 | 25854 | 21203 | 15269 | 10158 | 8056 | 3685 |
By 2 experimental result of table it is found that plugging agent obtained is able to maintain larger viscosity, plays high intensity at 200 DEG C or less
The effect of closure is more than after 200 DEG C in temperature, and viscosity decline is very fast, and blocking agent performance just starts to fail.Therefore the plugging agent is full
Performance requirement under sufficient high temperature and high salt environment.
The present embodiment also provides application of the prepared plugging agent in high temperature and high salt oil deposit oil-water well profile control and water plugging.Specifically
Are as follows: shutting out in Liaohe Oil Field, 813 pieces of 3 wells of field test are secondary, and scene is prepared using agitator tank, using pumping-in equipment injection well bottom, put down
Within 1500 sides, injection pressure 12MPa, measure effective percentage adds up to increase 752 tons of oil, increases oil equal individual well dosage up to 90% or more
Significant effect achieves good economic and social benefit, reduces environmental pollution, realizes the conjunction of silicon mud and ageing oil resource
Reason effective use.
Embodiment 2
The present embodiment provides a kind of plugging agents, and by weight percentage, the raw material components of the plugging agent include:
The present embodiment also provides the preparation method of above-mentioned plugging agent, carries out weighing raw material components according to aforementioned proportion, the system
Preparation Method the following steps are included:
Silicon mud and ageing oil are added in reaction kettle by step 1, and stirring at normal temperature is uniform, mixing time 12min, stirring
Revolving speed is 200rpm；
Vermiculite power and walnut shell powder are added into reaction kettle for step 2, and stirring at normal temperature is uniform, and mixing time 6min is stirred
Mixing revolving speed is 200rpm；
Step 3 heats up reaction kettle, and into reaction kettle be added sulfonated gilsonite powder, KYPAM-4S, carboxymethyl cellulose,
Polyanion cellulose and alpha-olefin sodium sulfonate, stir evenly, mixing time 10min, speed of agitator 200rpm, wait react
Kettle temperature degree is down to room temperature, obtains plugging agent.
Following correlated performance evaluation is made to plugging agent manufactured in the present embodiment:
(1) thermal stability is tested
Plugging agent manufactured in the present embodiment is taken, behind its static 24 hours completely condensation, the survey of heat resistance is carried out to it
Examination experiment, plugging agent test result under 200 DEG C of hot conditions are shown in Table 3.
Table 3
| Ageing time (h) | 24 | 36 | 48 | 60 | 90 | 142 | 360 | 480 |
| Form | Completely | Completely | Completely | Completely | Completely | Completely | Completely | Aquation |
| Weight-loss ratio (%) | 1.5 | 2.6 | 3.1 | 4.1 | 4.3 | 5.4 | 6.2 | 20.5 |
| Shrinking percentage (%) | 1.1 | 1.3 | 1.5 | 1.8 | 2.0 | 2.3 | 3.1 | 12.6 |
The test of above-mentioned heat resistance the result shows that: plugging agent provided in this embodiment in 200 DEG C of high temperature 15d, condensation
Plugging agent form is almost unchanged, and after 20d, plugging agent structure changes, and starts high temperature aquation.It is therefore seen that the plugging agent
With good high temperature resistance, the temperature condition of high-temperature oil reservoir can adapt to.
(2) salt resistant character evaluation experimental
According to the raw material components of the present embodiment, wherein water uses salinity for the water of 120000mg/L, is configured to adjust
Blocking agent carries out salt resistant character test to it, tests viscosity change situation under the conditions of synthermal, and test result is shown in Table 4.
Table 4
| Temperature, DEG C | 90 | 110 | 130 | 150 | 170 | 190 | 200 | 220 |
| Viscosity, mPas | 35957 | 30102 | 24236 | 18526 | 13287 | 9215 | 7248 | 3326 |
By 4 experimental result of table it is found that plugging agent obtained is able to maintain larger viscosity, plays high intensity at 200 DEG C or less
The effect of closure is more than after 200 DEG C in temperature, and viscosity decline is very fast, and blocking agent performance just starts to fail.Therefore the plugging agent is full
Performance requirement under sufficient high temperature and high salt environment.
The present embodiment also provides application of the prepared plugging agent in high temperature and high salt oil deposit oil-water well profile control and water plugging.Specifically
Are as follows: in 2 well of Block Du 84, Liaohe Oilfield field test, scene is prepared using agitator tank, average using pumping-in equipment injection well bottom
Within 1800 sides, injection pressure 13MPa, measure effective percentage adds up to increase 512 tons of oil individual well dosage up to 93% or more, increases oil effect
Fruit is significant, achieves good economic and social benefit, reduces environmental pollution, realizes the reasonable of silicon mud and ageing oil resource
Effective use.
In conclusion plugging agent provided by the invention and preparation method thereof can be realized the benefit again of silicon mud and ageing oil resource
With, while the plugging agent prepared has the performances such as good heat-resistant salt-resistant, it being capable of entirely appropriate high temperature and high salt oil deposit oil-water well tune
Cut open the technical application of water blockoff.
Claims (9)
1. a kind of plugging agent, by weight percentage, the raw material components of the plugging agent include:
2. plugging agent according to claim 1, it is characterised in that: the KYPAM polymer includes KYPAM-1S, KYPAM-
One of 2S, KYPAM-3S and KYPAM-4S or a variety of combinations.
3. plugging agent according to claim 1, it is characterised in that: the anionic cellulose ether includes carboxymethyl cellulose
Element and/or polyanion cellulose.
4. the preparation method of the described in any item plugging agents of claim 1-3 comprising following steps:
Silicon mud and ageing oil are added in reaction kettle by step 1, and stirring at normal temperature is uniform；
Step 2 is added vermiculite power into reaction kettle and walnut shell powder, stirring at normal temperature is uniform；
Step 3 heats up reaction kettle, and sulfonated gilsonite powder, KYPAM polymer, anionic cellulose are added into reaction kettle
Ether and alpha-olefin sodium sulfonate, stir evenly, obtain plugging agent.
5. the preparation method according to claim 4, it is characterised in that: in step 1, the time of stirring is 10-20min；
The revolving speed of stirring is 200-300rpm.
6. the preparation method according to claim 4, it is characterised in that: in step 2, the time of stirring is 5-10min；
The revolving speed of stirring is 200-300rpm.
7. the preparation method according to claim 4, it is characterised in that: in step 3, reaction kettle is warming up to 65-80 DEG C.
8. the preparation method according to claim 4, it is characterised in that: in step 3, the time of stirring is 10-15min；
The revolving speed of stirring is 200-300rpm.
9. application of any one of the claim 1-3 plugging agent in high temperature and high salt oil deposit oil-water well profile control and water plugging.
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| CN1927991A (en) * | 2006-09-11 | 2007-03-14 | 大庆油田有限责任公司 | Water plugging agent for water injection well preparing from discarded oil-containing sludge |
| CN101898860A (en) * | 2010-08-05 | 2010-12-01 | 武汉工程大学 | Inorganic profile control agent with oil sludge and application method thereof |
| CN103965848A (en) * | 2014-04-29 | 2014-08-06 | 中国石油大学(华东) | Composite profile control agent and preparation method thereof |
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| CN105038746A (en) * | 2015-06-25 | 2015-11-11 | 西安石油大学 | Preparation method of jelly-type oily sludge profile control agent |
| CN105112033A (en) * | 2015-08-21 | 2015-12-02 | 中国石油天然气股份有限公司 | Plugging control agent prepared by oil residues or oily sewage and preparation method thereof |
| CN105112035A (en) * | 2015-08-21 | 2015-12-02 | 中国石油天然气股份有限公司 | Selective water blocking agent prepared from oil residues or sludge containing oil and preparation method thereof |
| CN105368421A (en) * | 2015-11-19 | 2016-03-02 | 里群 | Non-resin type profile control agent and application thereof in petroleum exploitation process |
-
2016
- 2016-12-28 CN CN201611234660.1A patent/CN106833573B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927991A (en) * | 2006-09-11 | 2007-03-14 | 大庆油田有限责任公司 | Water plugging agent for water injection well preparing from discarded oil-containing sludge |
| CN101898860A (en) * | 2010-08-05 | 2010-12-01 | 武汉工程大学 | Inorganic profile control agent with oil sludge and application method thereof |
| CN103965848A (en) * | 2014-04-29 | 2014-08-06 | 中国石油大学(华东) | Composite profile control agent and preparation method thereof |
| CN104745162A (en) * | 2015-02-26 | 2015-07-01 | 东北石油大学 | Emulsified and cross-linked oil-containing sludge profile control agent |
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| CN105368421A (en) * | 2015-11-19 | 2016-03-02 | 里群 | Non-resin type profile control agent and application thereof in petroleum exploitation process |
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