CN106336861A - Preparation method of novel plugging agent - Google Patents
Preparation method of novel plugging agent Download PDFInfo
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- CN106336861A CN106336861A CN201610749742.3A CN201610749742A CN106336861A CN 106336861 A CN106336861 A CN 106336861A CN 201610749742 A CN201610749742 A CN 201610749742A CN 106336861 A CN106336861 A CN 106336861A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- 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
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
-
- 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
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
Abstract
The invention relates to a preparation method of novel plugging agent and belongs to the technical field of plugging agent material preparation. According to the method, first, sepiolite, calcium carbonate and others are smashed and sieved, mixed powder is obtained, one part of the mixed powder is mixed with water to prepare a mixed solution which is put into a karst cave environment to be maintained, then sediment and the other part of the mixed powder are mixed, put in the open air to be maintained and then transferred into the karst cave environment to be maintained, the mixture is smashed, activated seed crystals are obtained, the activated seed crystals, water, sodium carboxymethyl cellulose and others are mixed ultrasonically, a mixed matrix is obtained and mixed with guar gum, xanthan gum and others, and the novel plugging agent is obtained after the mixture is dried. The plugging agent prepared through the method is suitable for all kinds of complex stratums, will not have a reaction with liquid in bottom layers, achieves an obvious plugging effect, and can avoid that abnormal gel forming causes a poor plugging effect and even a plugging failure.
Description
Technical field
The present invention relates to a kind of preparation method of New Kind of Plugging Agent, belong to sealing agent technical field of material.
Background technology
According to statistics, leakage incidence in the whole world accounts for the 20%~25% of drilling well sum, and wherein to account for leakage total for severe well leakage loss
More than the 50% of loss, economic loss that Global Oil industry causes because of leakage is up to multi-billion dollar, therefore sealing agent every year
Research is current focus.
With increasing of complicated landform caving ground, traditional loss circulation material and method have certain limitation, such as bridge
Plug leak stopping run into drop ply crack larger and also more in the case of, it is second-rate that plugged zone on pit shaft is formed, false stifled
Phenomenon also can frequently occur, and after closure finishes, false blocking layer section before can be because down-hole various complex drilling situation etc.
It is easy to secondary leakage.The leak stopping success rate of some special cements slurry of application at present increases, but runs into complexity
During the more abnormal formation pressure of stratum such as water content, sealing agent then easily with the layer liquid reacts, form other
Mixture, lead to sealing agent can not normally plastic thus cause plugging effect inconspicuous in addition failure.
Content of the invention
The technical problem to be solved: the sealing agent for current preparation is running into bad ground such as water content relatively
During many abnormal formation pressures, sealing agent easily with the layer liquid reacts, form other mixtures, lead to sealing agent
Can not normally plastic and lead to plugging effect inconspicuous in addition failure problem, there is provided a kind of degradable macromolecule agent for storage of coldness
Preparation method, the grinding and sieving such as sepiolite, calcium carbonate are obtained mixed-powder by the present invention first, take a copy of it mixed-powder
It is made into after mixed liquor with water to be placed in solution cavity environment and carries out maintenance, then will precipitate and mix after outdoor with another mixed-powder
Maintenance in environment, transfers to maintenance in solution cavity environment, obtains activation seeds after pulverizing, by activation seeds, water, carboxymethyl cellulose
Obtain mixed resin after the ultrasonic mixings such as plain sodium, mixed resin is mixed with guar gum, xanthans etc., be dried after obtain new stifled
Leakage agent.The sealing agent of present invention preparation is suitable for various bad grounds, and will not react with bottom in the layer liquid, sealing agent
Plugging effect substantially, be not in can not normally plastic and lead to plugging effect inconspicuous in addition failure phenomenon.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
(1) 20~30g sepiolite, 10~15g calcium carbonate, 8~12g diatomite, 6~8g expanded perlite, 4~6g are weighed successively
Calcium oxide, is added in pulverizer and is pulverized, and crosses 100~200 mesh sieves, obtains mixed-powder, mixed-powder is divided into
Two parts;
(2) take a copy of it mixed-powder to be added in beaker, add 100~200g deionized water, stir 10~20min,
Obtain mixed liquor, be subsequently placed at temperature be 40~50 DEG C, humidity be 80~90% solution cavity environment in, by mixed liquor along crag seam along
Drop to ground, form precipitation, maintenance 8~12 days in solution cavity environment will be deposited in, then precipitation is taken out, mix with other portion
Put in beaker after powder mixing, add after 200~300ml deionized water stirs and be placed in open-air atmosphere, with moulding
Material film covers, and places 5~8 days, adds 300~400ml deionized water, stirs 10~20min;
(3) subsequently move into again temperature be 35~45 DEG C, humidity be in 70~80% solution cavity environment, mixed liquor is dripped along along crag seam
Drop down onto ground, form precipitation, maintenance 6~8 days in solution cavity environment will be deposited in, subsequently precipitation is added in pulverizer and carries out powder
Broken, cross 100~200 mesh sieves, obtain activation seeds;
(4) count by weight, weigh 20~30 parts of above-mentioned activation seeds, 100~200 parts of deionized waters, 5~8 parts of carboxymethyls
Sodium cellulosate, 6~10 parts of odium stearate are added in beaker, are placed in supersonic oscillations instrument, ultrasonic 20 under 200~220w
~30min, obtains mixed resin;
(5) count by weight, weigh 30~40 parts of above-mentioned mixed resins, 10~20 parts of guar gums, 8~12 parts of xanthans, 2~
4 parts of castor oil, 3~5 parts of titanate esters and 6~8 parts of 3- aminopropyl triethoxysilanes are added in mixer, 60~70 DEG C,
Stir 1~2h under 10000~12000r/min, be subsequently placed in baking oven, at 70~80 DEG C, 5~6h is dried, obtain new stifled
Leakage agent.
The application process of the present invention: will be mixed with the sealing agent stirring of the present invention preparation of drilling fluid quality 7~9% for drilling fluid
Close, be configured to leak stopping slurry, then leak stopping is starched in injection oil well, control pump pressure to be 3~4mpa, discharge capacity is 18~20l/s, respectively
At well depth 300m, 500m and 900m, it is circulated plugging while drilling, after leak stopping terminates, 1~2h is observed in termination of pumping, and turn on pump follows
Ring 5~7h, no leakage phenomena, leak stopping success.
Compared with additive method, Advantageous Effects are the present invention:
(1) sealing agent of present invention preparation is suitable for various bad grounds, and will not react with bottom in the layer liquid, leak stopping
The plugging effect of agent substantially, be not in can not normally plastic and lead to plugging effect inconspicuous in addition failure phenomenon;
(2) the main preparation process of the present invention is simple, required low cost.
Specific embodiment
Weigh successively first 20~30g sepiolite, 10~15g calcium carbonate, 8~12g diatomite, 6~8g expanded perlite,
4~6g calcium oxide, is added in pulverizer and is pulverized, and crosses 100~200 mesh sieves, obtains mixed-powder, and mixed-powder is average
It is divided into two parts;Take a copy of it mixed-powder to be added in beaker, add 100~200g deionized water, stirring 10~
20min, obtains mixed liquor, be subsequently placed at temperature be 40~50 DEG C, humidity be 80~90% solution cavity environment in, by mixed liquor along rock
Drop to ground in parietal suture, form precipitation, maintenance 8~12 days in solution cavity environment will be deposited in, then precipitation is taken out, with other one
Put in beaker after part mixed-powder mixing, add after 200~300ml deionized water stirs and be placed on open-air atmosphere
In, covered with plastic sheeting, place 5~8 days, add 300400ml deionized water, stir 10~20min;Subsequently move into again
Temperature is 35~45 DEG C, humidity is in 70~80% solution cavity environment, mixed liquor is dropped to ground along along crag seam, forms precipitation,
Maintenance 6~8 days in solution cavity environment will be deposited in, subsequently precipitation is added in pulverizer and is pulverized, cross 100~200 mesh sieves,
Obtain activation seeds;Count by weight, weigh 20~30 parts of above-mentioned activation seeds, 100~200 parts of deionized waters, 5~8 parts
Sodium carboxymethylcellulose, 6~10 parts of odium stearate are added in beaker, are placed in supersonic oscillations instrument, under 200~220w
Ultrasonic 20~30min, obtains mixed resin;Count by weight, weigh 30~40 parts of above-mentioned mixed resins, 10~20 parts of Guars
Glue, 8~12 parts of xanthans, 2~4 parts of castor oil, 3~5 parts of titanate esters and 6~8 parts of 3- aminopropyl triethoxysilanes are added to
In mixer, stir 1~2h under 60~70 DEG C, 10000~12000r/min, be subsequently placed in baking oven, at 70~80 DEG C
5~6h is dried, obtains New Kind of Plugging Agent.
Example 1
Weigh 20g sepiolite, 10g calcium carbonate, 8g diatomite, 6g expanded perlite, 4g calcium oxide first successively, be added to pulverizing
Pulverized in machine, cross 100 mesh sieves, obtain mixed-powder, mixed-powder is divided into two parts;Take a copy of it mixed-powder
It is added in beaker, adds 100g deionized water, stir 10min, obtain mixed liquor, being subsequently placed at temperature is 40 DEG C, humidity
For, in 80% solution cavity environment, mixed liquor being dropped to ground along along crag seam, forming precipitation, maintenance 8 in solution cavity environment will be deposited in
My god, then precipitation is taken out, put in beaker after mixing with other portion mixed-powder, add the stirring of 200ml deionized water all
It is placed on after even in open-air atmosphere, is covered with plastic sheeting, place 5 days, add 300ml deionized water, stir 10min;With
Move into again afterwards temperature be 35 DEG C, humidity be in 70% solution cavity environment, mixed liquor is dropped to ground along along crag seam, forms precipitation,
Maintenance 6 days in solution cavity environment will be deposited in, subsequently precipitation is added in pulverizer and is pulverized, and cross 100 mesh sieves, activated
Crystal seed;Count by weight, weigh 20 parts of above-mentioned activation seeds, 100 parts of deionized waters, 5 parts of sodium carboxymethylcelluloses, 6 parts hard
Resin acid sodium is added in beaker, is placed in supersonic oscillations instrument, under 200w, ultrasonic 20min, obtains mixed resin;By weight
Number meter, weighs 30 parts of above-mentioned mixed resins, 10 parts of guar gums, 8 parts of xanthans, 2 parts of castor oil, 3 parts of titanate esters and 6 parts of 3- ammonia
Propyl-triethoxysilicane is added in mixer, stirs 1h, be subsequently placed in baking oven, 70 under 60 DEG C, 10000r/min
5h is dried at DEG C, obtains New Kind of Plugging Agent.
Drilling fluid is mixed with the sealing agent stirring of the present invention preparation of drilling fluid quality 7%, is configured to leak stopping slurry, then will
In leak stopping slurry injection oil well, pump pressure is controlled to be 3mpa, discharge capacity is 18l/s, at well depth 300m, is circulated plugging while drilling,
After leak stopping terminates, 1h is observed in termination of pumping, and turn on pump circulates 5h, no leakage phenomena, leak stopping success.
Example 2
Weigh 30g sepiolite, 15g calcium carbonate, 12g diatomite, 8g expanded perlite, 6g calcium oxide first successively, be added to powder
Pulverized in broken machine, cross 200 mesh sieves, obtain mixed-powder, mixed-powder is divided into two parts;Take a copy of it mixed powder
End is added in beaker, adds 200g deionized water, stirs 20min, obtains mixed liquor, be subsequently placed at temperature be 50 DEG C, wet
Spend for, in 90% solution cavity environment, mixed liquor being dropped to ground along along crag seam, forming precipitation, will be deposited in solution cavity environment and support
Shield 12 days, then precipitation is taken out, put in beaker after mixing with other portion mixed-powder, add 300ml deionized water and stir
It is placed in open-air atmosphere after mixing uniformly, is covered with plastic sheeting, place 8 days, add 400ml deionized water, stirring
20min;Subsequently move into again temperature be 45 DEG C, humidity be in 80% solution cavity environment, mixed liquor is dropped to ground along along crag seam,
Form precipitation, maintenance 8 days in solution cavity environment will be deposited in, subsequently precipitation is added in pulverizer and is pulverized, cross 200 mesh
Sieve, obtains activation seeds;Count by weight, weigh 30 parts of above-mentioned activation seeds, 200 parts of deionized waters, 8 parts of carboxymethyl celluloses
Plain sodium, 10 parts of odium stearate are added in beaker, are placed in supersonic oscillations instrument, under 220w, ultrasonic 30min, is mixed
Base-material;Count by weight, weigh 40 parts of above-mentioned mixed resins, 20 parts of guar gums, 12 parts of xanthans, 4 parts of castor oil, 5 parts of titaniums
Acid esters and 8 parts of 3- aminopropyl triethoxysilanes are added in mixer, stir 2h, with rearmounted under 70 DEG C, 12000r/min
In baking oven, 6h is dried at 80 DEG C, obtains New Kind of Plugging Agent.
Drilling fluid is mixed with the sealing agent stirring of the present invention preparation of drilling fluid quality 8%, is configured to leak stopping slurry, then will
In leak stopping slurry injection oil well, control pump pressure to be 3.5mpa, discharge capacity is 19l/s, at well depth 500m, be circulated stifled with boring
Leakage, after leak stopping terminates, 1.5h is observed in termination of pumping, and turn on pump circulates 6h, no leakage phenomena, leak stopping success.
Example 3
Weigh 28g sepiolite, 12g calcium carbonate, 10g diatomite, 7g expanded perlite, 5g calcium oxide first successively, be added to powder
Pulverized in broken machine, cross 150 mesh sieves, obtain mixed-powder, mixed-powder is divided into two parts;Take a copy of it mixed powder
End is added in beaker, adds 150g deionized water, stirs 15min, obtains mixed liquor, be subsequently placed at temperature be 45 DEG C, wet
Spend for, in 85% solution cavity environment, mixed liquor being dropped to ground along along crag seam, forming precipitation, will be deposited in solution cavity environment and support
Shield 10 days, then precipitation is taken out, put in beaker after mixing with other portion mixed-powder, add 250ml deionized water and stir
It is placed in open-air atmosphere after mixing uniformly, is covered with plastic sheeting, place 6 days, add 350ml deionized water, stirring
15min;Subsequently move into again temperature be 40 DEG C, humidity be in 75% solution cavity environment, mixed liquor is dropped to ground along along crag seam,
Form precipitation, maintenance 7 days in solution cavity environment will be deposited in, subsequently precipitation is added in pulverizer and is pulverized, cross 150 mesh
Sieve, obtains activation seeds;Count by weight, weigh 25 parts of above-mentioned activation seeds, 150 parts of deionized waters, 6 parts of carboxymethyl celluloses
Plain sodium, 8 parts of odium stearate are added in beaker, are placed in supersonic oscillations instrument, under 210w, ultrasonic 25min, is mixed
Base-material;Count by weight, weigh 35 parts of above-mentioned mixed resins, 15 parts of guar gums, 10 parts of xanthans, 3 parts of castor oil, 4 parts of titaniums
Acid esters and 7 parts of 3- aminopropyl triethoxysilanes are added in mixer, stir 1.5h, subsequently under 65 DEG C, 11000r/min
It is placed in baking oven, 5.5h is dried at 75 DEG C, obtains New Kind of Plugging Agent.
Drilling fluid is mixed with the sealing agent stirring of the present invention preparation of drilling fluid quality 9%, is configured to leak stopping slurry, then will
In leak stopping slurry injection oil well, pump pressure is controlled to be 4mpa, discharge capacity is 20l/s, at well depth 900m, is circulated plugging while drilling,
After leak stopping terminates, 2h is observed in termination of pumping, and turn on pump circulates 7h, no leakage phenomena, leak stopping success.
Claims (1)
1. a kind of preparation method of New Kind of Plugging Agent is it is characterised in that concrete preparation process is:
(1) 20~30g sepiolite, 10~15g calcium carbonate, 8~12g diatomite, 6~8g expanded perlite, 4~6g are weighed successively
Calcium oxide, is added in pulverizer and is pulverized, and crosses 100~200 mesh sieves, obtains mixed-powder, mixed-powder is divided into
Two parts;
(2) take a copy of it mixed-powder to be added in beaker, add 100~200g deionized water, stir 10~20min,
Obtain mixed liquor, be subsequently placed at temperature be 40~50 DEG C, humidity be 80~90% solution cavity environment in, by mixed liquor along crag seam along
Drop to ground, form precipitation, maintenance 8~12 days in solution cavity environment will be deposited in, then precipitation is taken out, mix with other portion
Put in beaker after powder mixing, add after 200~300ml deionized water stirs and be placed in open-air atmosphere, with moulding
Material film covers, and places 5~8 days, adds 300~400ml deionized water, stirs 10~20min;
(3) subsequently move into again temperature be 35~45 DEG C, humidity be in 70~80% solution cavity environment, mixed liquor is dripped along along crag seam
Drop down onto ground, form precipitation, maintenance 6~8 days in solution cavity environment will be deposited in, subsequently precipitation is added in pulverizer and carries out powder
Broken, cross 100~200 mesh sieves, obtain activation seeds;
(4) count by weight, weigh 20~30 parts of above-mentioned activation seeds, 100~200 parts of deionized waters, 5~8 parts of carboxymethyls
Sodium cellulosate, 6~10 parts of odium stearate are added in beaker, are placed in supersonic oscillations instrument, ultrasonic 20 under 200~220w
~30min, obtains mixed resin;
(5) count by weight, weigh 30~40 parts of above-mentioned mixed resins, 10~20 parts of guar gums, 8~12 parts of xanthans, 2~
4 parts of castor oil, 3~5 parts of titanate esters and 6~8 parts of 3- aminopropyl triethoxysilanes are added in mixer, 60~70 DEG C,
Stir 1~2h under 10000~12000r/min, be subsequently placed in baking oven, at 70~80 DEG C, 5~6h is dried, obtain new stifled
Leakage agent.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107129797A (en) * | 2017-05-11 | 2017-09-05 | 孙东光 | A kind of drilling construction retaining wall construction material and preparation method thereof |
CN112940697A (en) * | 2021-02-25 | 2021-06-11 | 成都泽赛普石油工程技术服务有限公司 | Acid-resistant temporary plugging agent and preparation method thereof |
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CN103740341A (en) * | 2013-12-31 | 2014-04-23 | 东营泰尔石油技术有限公司 | Leaking stoppage pressure-bearing agent |
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2016
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CN101519585A (en) * | 2009-03-31 | 2009-09-02 | 荆州市弘利化工科技有限公司 | Shearing cross-linking sensitive plugging agent and preparation method thereof |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107129797A (en) * | 2017-05-11 | 2017-09-05 | 孙东光 | A kind of drilling construction retaining wall construction material and preparation method thereof |
CN112940697A (en) * | 2021-02-25 | 2021-06-11 | 成都泽赛普石油工程技术服务有限公司 | Acid-resistant temporary plugging agent and preparation method thereof |
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Application publication date: 20170118 |