CN106833573A - 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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- CN106833573A CN106833573A CN201611234660.1A CN201611234660A CN106833573A CN 106833573 A CN106833573 A CN 106833573A CN 201611234660 A CN201611234660 A CN 201611234660A CN 106833573 A CN106833573 A CN 106833573A
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- 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
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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 8% 15% silicon mud, 5% 10% ageing oil, 1% 3% vermiculite power, 2% 4% walnut shell powder, 1% 3% sulfonated gilsonite powder, 0.3% 0.8% KYPAM polymer, 0.2% 0.6% anionic cellulose ether, 0.2% 0.5% alhpa olefin sodium sulfonate and the water of surplus.Plugging agent that the present invention is provided and preparation method thereof can realize the recycling of silicon mud and ageing oil resource, while the plugging agent for preparing has the performances such as good heat-resistant salt-resistant, be capable of the technology 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 technology
Silicon mud be oil sludge through the product after PROCESS FOR TREATMENT, oil sludge refers to oil tank, settling tank, the dirt of oil recovery factory's multi-purpose station
Water pot, oil interceptor, landing bottom of pond mud, drilling well, operation, conduit wiring piercing and the ground sludge that produces.Silicon mud has become oil field and opens
One of major pollutants produced during hair.In recent years, because the gradual perfection of Environmental Protection in China regulation and group company make
The requirement of Green Development, silicon mud governing problem increasingly causes the concern of people.Liaohe Oil Field produces a large amount of oil sludges every year, due to
Its complicated, causes silicon mud to separate 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, Sewage Disposal reclaim sump oil, the dehydrator profit in pond
Interface intermediate layer etc. produces a large amount of ageing oils, the complicated component of ageing oil, its relative density, viscosity, asphalt colloid content
Height, in addition except containing substantial amounts of gum asphalt in ageing oil, also containing metals such as calcium higher, sodium, magnesium, these compositions cause
Ageing oil High water cut, dehydration are difficult.Therefore, in the urgent need to developing a kind for the treatment of technology of high efficiency low cost, silicon mud and aging is realized
The recycling of oily resource.
The content of the invention
In order to solve the above-mentioned technical problem, it is an object of the invention to provide a kind of plugging agent and preparation method thereof and should
With.The preparation method of the plugging agent can realize the recycling of silicon mud and ageing oil resource, at the same prepare plugging agent have it is good
The performances such as good heat-resistant salt-resistant, are capable of the technology 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 or more in KYPAM-4S etc. of combination, by Beijing, perseverance dimerization work group company produces.
In above-mentioned plugging agent, it is preferable that the anionic cellulose ether can include carboxymethylcellulose calcium and/or poly- the moon
Ion fiber element, but not limited to this.
The present invention also provides the preparation method of above-mentioned plugging agent, and it is comprised the following steps：
Step one, silicon mud and ageing oil are added in reactor, and stirring at normal temperature is uniform；
Step 2, to vermiculite power and walnut shell powder is added in reactor, stirring at normal temperature is uniform；
Step 3, reactor is heated up, and fine to addition sulfonated gilsonite powder, KYPAM polymer, anionic in reactor
The plain ether of dimension and alpha-olefin sodium sulfonate, stir, and question response kettle temperature degree is down to normal temperature, obtains plugging agent.
In above-mentioned preparation method, it is preferable that in step one, the time of stirring is 10-20min；The rotating 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 rotating speed of stirring is 200-
300rpm。
In above-mentioned preparation method, it is preferable that in step 3, reactor 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 rotating 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 be oil extraction in oil field during oil sludge through the accessory substance after PROCESS FOR TREATMENT, from oil
Hide, have good compatibility with oil reservoir, while siliceous mixture content is higher in silicon mud, effectively increase the plugging agent of preparation
Heat resistance and plugging strength, while solving silicon mud treatment problem, realize and recycle, and silicon mud is used to prepare and adjusts stifled
Agent, had both saved profile control cost, also saved silicon mud processing cost, therefore, have a good application prospect, all oil extraction in oil field
During produced silicon mud may be applicable to the present invention.
Ageing oil of the present invention be oil extraction in oil field during, after emulsification of crude oil, gradually coalesced at oil-water interfaces
Formed into certain thickness, produced ageing oil may be applicable to the present invention during all oil extraction in oil field.
Vermiculite power of the present invention is heated can be expanded, and volume increases 18-25 times, while in flexure shape, with good
Good expansion character and toughness, can improve the plugging strength of plugging agent.
Lignin, cellulose and hemicellulose account for more than 95% in walnut shell powder of the present invention, can improve tune
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, with good emulsifiability, temperature resistance
Property it is higher, simultaneously as sulfonated gilsonite powder contains sulfonic group, hydration is very strong, when absorption on shale interface when, can prevent
Anti-collapse effect is played in the aquation dispersion of shale particle, and water insoluble part can fill pore throat again and plugging action is played in crack.
KYPAM polymer of the present invention has heat endurance and anti-salt property higher, and degree of hydrolysis is 20%-
30%, molecular weight is 12,000,000-1,600 ten thousand, is characterized in, for (>=90 DEG C) under the conditions of high-temperature oil reservoir, to keep higher
Heat endurance.Under 90 DEG C of oxygen free conditions, viscosity retention ratio >=90% after 90 days under the conditions of high salinity, compares conventional polymer
More preferably, the product amount ratio conventional polymer saves 15-20% to Efficient Adhesive Promotion, greatly reduces running 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
Suspension well, dispersiveness, 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, with 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, improve heavy oil recovery rate.
Plugging agent that the present invention is provided and preparation method thereof can realize the recycling of silicon mud and ageing oil resource, while system
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 be more clearly understood to technical characteristic of the invention, purpose and beneficial effect, now to skill of the invention
Art scheme carry out it is described further below, but it is not intended that to it is of the invention can practical range restriction.
In raw material employed in embodiment, silicon mud and ageing oil are the accessory substance produced 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 agent, 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, and weighing raw material components are carried out according to aforementioned proportion, the system
Preparation Method is comprised the following steps：
Step one, silicon mud and ageing oil are added in reactor, and stirring at normal temperature is uniform, and mixing time is 15min, stirring
Rotating speed is 250rpm；
Step 2, to vermiculite power and walnut shell powder is added in reactor, stirring at normal temperature is uniform, and mixing time is 7min, is stirred
Mix rotating speed is 250rpm；
Step 3, reactor is heated up, and to addition sulfonated gilsonite powder, KYPAM-3S, polyanion fiber in reactor
Element and alpha-olefin sodium sulfonate, stir, and mixing time is 13min, and speed of agitator is 250rpm, and question response kettle temperature degree is down to often
Temperature, obtains plugging agent.
Make following correlated performance evaluation to plugging agent manufactured in the present embodiment：
(1) heat endurance experiment
Plugging agent manufactured in the present embodiment is taken, after its static 24 hours condense completely, the survey of heat resistance is carried out to it
Examination experiment, plugging agent result of the test under 200 DEG C of hot conditions is 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 |
| Shrinkage factor (%) | 1.0 | 1.2 | 1.6 | 1.9 | 2.1 | 2.4 | 3.2 | 11.7 |
The result of above-mentioned heat resistance test shows：The present embodiment provide plugging agent 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 resistance to elevated temperatures, the temperature conditionss of high-temperature oil reservoir are can adapt to.
(2) salt resistant character evaluation experimental
According to the raw material components of the present embodiment, it is the water of 110000mg/L that wherein water uses salinity, is configured to adjust
Blocking agent, salt resistant character test is carried out to it, and the viscosity B coefficent situation tested under the conditions of synthermal, 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 |
From the experimental result of table 2, when obtained plugging agent is below 200 DEG C, larger viscosity can be kept, play high intensity
The effect of closure, after temperature is more than 200 DEG C, viscosity declines comparatively fast, and blocking agent performance just starts failure.Therefore the plugging agent is expired
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
For：Being shut out in Liaohe Oil Field, 813 pieces of wells of field test 3 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 equal individual well consumption up to more than 90%, increases oil
Effect is significant, achieves good economic and social benefit, reduces environmental pollution, realizes the conjunction of silicon mud and ageing oil resource
Reason is effectively utilized.
Embodiment 2
The present embodiment provides a kind of plugging agent, 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, and weighing raw material components are carried out according to aforementioned proportion, the system
Preparation Method is comprised the following steps：
Step one, silicon mud and ageing oil are added in reactor, and stirring at normal temperature is uniform, and mixing time is 12min, stirring
Rotating speed is 200rpm；
Step 2, to vermiculite power and walnut shell powder is added in reactor, stirring at normal temperature is uniform, and mixing time is 6min, is stirred
Mix rotating speed is 200rpm；
Step 3, reactor is heated up, and to added in reactor sulfonated gilsonite powder, KYPAM-4S, carboxymethylcellulose calcium,
Polyanion cellulose and alpha-olefin sodium sulfonate, stir, and mixing time is 10min, and speed of agitator is 200rpm, question response
Kettle temperature degree is down to normal temperature, obtains plugging agent.
Make following correlated performance evaluation to plugging agent manufactured in the present embodiment：
(1) heat endurance experiment
Plugging agent manufactured in the present embodiment is taken, after its static 24 hours condense completely, the survey of heat resistance is carried out to it
Examination experiment, plugging agent result of the test under 200 DEG C of hot conditions is 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 |
| Shrinkage factor (%) | 1.1 | 1.3 | 1.5 | 1.8 | 2.0 | 2.3 | 3.1 | 12.6 |
The result of above-mentioned heat resistance test shows：The present embodiment provide plugging agent 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 resistance to elevated temperatures, the temperature conditionss of high-temperature oil reservoir are can adapt to.
(2) salt resistant character evaluation experimental
According to the raw material components of the present embodiment, it is the water of 120000mg/L that wherein water uses salinity, is configured to adjust
Blocking agent, salt resistant character test is carried out to it, and the viscosity B coefficent situation tested under the conditions of synthermal, 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 |
From the experimental result of table 4, when obtained plugging agent is below 200 DEG C, larger viscosity can be kept, play high intensity
The effect of closure, after temperature is more than 200 DEG C, viscosity declines comparatively fast, and blocking agent performance just starts failure.Therefore the plugging agent is expired
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
For：In the well of Block Du 84, Liaohe Oilfield field test 2 time, scene is prepared using agitator tank, using pumping-in equipment injection well bottom, averagely
Within 1800 sides, injection pressure 13MPa, measure effective percentage adds up to increase 512 tons of oil individual well consumption up to more than 93%, increases oil effect
Fruit significantly, achieves good economic and social benefit, reduces environmental pollution, realizes the reasonable of silicon mud and ageing oil resource
Effectively utilize.
In sum, plugging agent that the present invention is provided and preparation method thereof can realize the profit again of silicon mud and ageing oil resource
With, while the plugging agent for preparing has the performances such as good heat-resistant salt-resistant, being capable of entirely appropriate high temperature and high salt oil deposit oil-water well tune
Cut open the technology 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 or more in 2S, KYPAM-3S and KYPAM-4S of combination.
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 plugging agent described in any one of claim 1-3, it is comprised the following steps：
Step one, silicon mud and ageing oil are added in reactor, and stirring at normal temperature is uniform；
Step 2, to vermiculite power and walnut shell powder is added in reactor, stirring at normal temperature is uniform；
Step 3, reactor is heated up, and to addition sulfonated gilsonite powder, KYPAM polymer, anionic cellulose in reactor
Ether and alpha-olefin sodium sulfonate, stir, and obtain plugging agent.
5. preparation method according to claim 4, it is characterised in that：In step one, the time of stirring is 10-20min；
The rotating speed of stirring is 200-300rpm.
6. preparation method according to claim 4, it is characterised in that：In step 2, the time of stirring is 5-10min；
The rotating speed of stirring is 200-300rpm.
7. preparation method according to claim 4, it is characterised in that：In step 3, reactor is warming up to 65-80 DEG C.
8. preparation method according to claim 4, it is characterised in that：In step 3, the time of stirring is 10-15min；
The rotating speed of stirring is 200-300rpm.
9. application of the plugging agent described in any one of claim 1-3 in high temperature and high salt oil deposit oil-water well profile control and water plugging.
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Citations (8)
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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 |
| CN104745162A (en) * | 2015-02-26 | 2015-07-01 | 东北石油大学 | Emulsified and cross-linked oil-containing sludge profile control agent |
| 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 |
| 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 |
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