CN104250547B - Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well - Google Patents
Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well Download PDFInfo
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- CN104250547B CN104250547B CN201310266794.1A CN201310266794A CN104250547B CN 104250547 B CN104250547 B CN 104250547B CN 201310266794 A CN201310266794 A CN 201310266794A CN 104250547 B CN104250547 B CN 104250547B
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- water
- screen pipe
- main part
- blocking agent
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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
- C09K8/514—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Materials For Medical Uses (AREA)
- Lubricants (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention provides a modified biogel particles blocking agent used for a precision screen pipe of a thick oil horizontal well as well as a preparation method thereof. The blocking agent is composed of a main body material, an additive and water, the main body material is composed of 60-90% of G grade cement and 40-10% of fly ash with weight ratio; the additive is composed of 0.5-5% of plant polysaccharide, 1-8% of modified biogel and 10-20% of inorganic salt with weight ratio; and the main body material and the water are blended by weight ratio of 1:6-10. The preparation method of the blocking agent comprises the following steps: weighing the modified biogel and inorganic salt, uniformly mixing, placing in a reaction vessel filled with clear water, uniformly stirring; then adding a reinforcing agent plant polysaccharide in the reaction vessel, stirring while adding, adding the G grade cement and fly ash after uniformly stirring, and then uniformly stirring. The blocking agent has the characteristics of good dispersibility, no gel breaking, fast dissolving speed, easy pumping and environmental protection.
Description
Technical field
The present invention relates to thick oil horizontal well precise screen pipe water blockoff field water shutoff agent, and in particular to a kind of dispersive property is good,
Precise screen pipe penetrability is strong, plastic does not break glue, plugging strength environment-friendly modified biogum particle water shutoff agent high.
Background technology
At present, to there is low crosslinking degree, bad dispersibility, sealed depth shallow, resistance to for thick oil horizontal well gel particle water shutoff agent
Acid-base property and salinity are poor, it is water-soluble to be difficult, pollution stratum the shortcomings of.In thick oil horizontal well section, due to the dispersive property of water shutoff agent
Difference, Action of Gravity Field causes that water shutoff agent is layered, it is impossible to uniformly across precise screen pipe, cause sealed depth and insufficient strength.Additionally, solidifying
Generally using polyacrylamide as dispersant, the dispersant does not tolerate high salinity and acid-base value to glue-type particle water shutoff agent, and
Strong carcinogen is easily converted on stratum, stratum water is polluted, stratum is polluted.
The content of the invention
In order to overcome above-mentioned technical problem, it is an object of the invention to provide a kind of for precise screen pipe water plugging of horizontal well
Modification biological glue particle water shutoff agent that dispersive property is good, sieving rate is high, plugging strength is high and preparation method thereof.
In order to reach above-mentioned purpose, an object of the present invention can be realized by following technical measures：
Thick oil horizontal well precise screen pipe of the present invention modification biological glue particle water shutoff agent is by material of main part, additive and water group
Into the material of main part is made up of weight than the G grades of oil-well cement and the flyash of 40%-10% for 60-90%；The additive
Constituted than being respectively the solubilizer of reinforcing agent sugar, the dispersant of 1-8% and the 10-20% of 0.5%-5% by accounting for material of main part weight, institute
Material of main part and water are stated by weight 1：6-10 blends.
One of the object of the invention can also be realized by following technical measures：
The reinforcing agent is that plant is more, and the dispersant is modification biological glue, and the solubilizer is inorganic salts；The main body
Material is made up of weight than the G grades of oil-well cement and the flyash of 30%-20% for 70-80%；The additive is by accounting for material of main part
Weight is constituted than being respectively the plant polyose of 1%-3%, the modification biological glue of 4%-6% and 15% inorganic salts；The material of main part and
Water is by weight 1:8 blend；The plant polyose is konjaku flour；The modification biological glue is xanthans；The inorganic salts are
NaCl。
The second object of the present invention can be realized by following technical measures：
A kind of method for preparing thick oil horizontal well precise screen pipe remodeling biogum particle water shutoff agent of the present invention, by following step
Suddenly carry out：
A, weigh remodeling biogum and inorganic salts, be well mixed, be put into the reactor for filling clear water, stir；
B, in step a reactors add reinforcing agent plant polyose, it is stirring while adding, be stirring evenly and then adding into G grades of oil well
Cement and flyash, stir and obtain final product.
The selection of additive of the present invention, can improve dispersive property, improve plugging strength.By investigating modification biological glue particle
The performance of type water shutoff agent, it is contemplated that the particularity of thick oil horizontal well section precise screen pipe, the present invention adds dispersant modification biological glue,
The dispersiveness and bridging property of cement are increased, is that modification biological glue can be made to be uniformly blended into cement, add inorganic salts as solubilising
Agent, improves solubility of the biogum in cement；Suitable reinforcing agent is screened, the addition of plant polyose has been greatly reinforced stifled
The plugging strength of aqua.
Thick oil horizontal well precise screen pipe of the present invention modification biological glue particle water shutoff agent compared with prior art, with following
Advantage：It can quickly be dissolved in injection water when thick oil horizontal well is blocked, and good fluidity, easily pump into, with even suspension gel
Particle form is through precise screen pipe and can carry out deep plugging adjustment into oil reservoir, and plugging strength is high, so as to reach thick oil horizontal well envelope
Stifled once succeeds.The water shutoff agent there is good dispersion, plastic not to break that glue, dissolution velocity are fast, easily pumps into, it is environmentally friendly the features such as.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
A, 1Kg xanthans and 10Kg NaCl are weighed, be well mixed, be put into the reactor for filling 600Kg clear water, stirred
Uniformly；
B, the konjaku flour to addition 0.5Kg particle diameters 0.30mm in step a reactors, it is stirring while adding, add after stirring
Enter 60KgG grades of oil-well cement and 40Kg flyash, stir and obtain final product.
Embodiment 2
A, 8Kg xanthans and 20Kg NaCl are weighed, be well mixed, be put into the reactor for filling 1000Kg clear water, stirred
Uniformly；
B, the konjaku flour to addition 5Kg particle diameters 0.15mm in step a reactors, it is stirring while adding, it is stirring evenly and then adding into
90Kg G grades of oil-well cement and 10Kg flyash, stir and obtain final product.
Embodiment 3
A, 5Kg xanthans and 15Kg NaCl are weighed, be well mixed, be put into the reactor for filling 800Kg clear water, stirred
Uniformly；
B, the konjaku flour to addition 2.5Kg particle diameters 0.20mm in step a reactors, it is stirring while adding, add after stirring
Enter 75Kg G grades of oil-well cement and 25Kg flyash, stir and obtain final product.
Embodiment 4
A, 4Kg xanthans and 15Kg NaCl are weighed, be well mixed, be put into the reactor for filling 800Kg clear water, stirred
Uniformly；
B, the konjaku flour to addition 1Kg particle diameters 0.20mm in step a reactors, it is stirring while adding, it is stirring evenly and then adding into
70Kg G grades of oil-well cement and 30Kg flyash, stir and obtain final product.
Embodiment 5
A, 6Kg xanthans and 15Kg NaCl are weighed, be well mixed, be put into the reactor for filling 800Kg clear water, stirred
Uniformly；
B, the konjaku flour to addition 3Kg particle diameters 0.25mm in step a reactors, it is stirring while adding, it is stirring evenly and then adding into
80Kg G grades of oil-well cement and 20Kg flyash, stir and obtain final product.
Claims (3)
1. thick oil horizontal well precise screen pipe modification biological glue particle water shutoff agent, is made up of material of main part, additive and water, and it is special
Levy and be, the material of main part is made up of weight than the G grades of oil-well cement and the flyash of 40%-10% for 60-90%；It is described outer
Plus agent is by accounting for material of main part weight than being respectively the inorganic of the plant polyose of 0.5%-5%, the modification biological glue of 1-8% and 10-20%
Salt is constituted, and the material of main part and water are by weight 1：6-10 blends；The plant polyose is konjaku flour, the modification biological glue
It is xanthans, the inorganic salts are NaCl.
2. thick oil horizontal well precise screen pipe as claimed in claim 1 modification biological glue particle water shutoff agent, it is characterised in that institute
Material of main part is stated to be made up of than the G grades of oil-well cement and the flyash of 30%-20% for 70-80% weight；The additive is by accounting for master
Body material weight is constituted than being respectively the konjaku flour of 1%-3%, the xanthans of 4%-6% and 15% NaCl；The material of main part and water
By weight 1:8 blend.
3. a kind of thick oil horizontal well precise screen pipe as claimed in claim 1 preparation method of modification biological glue particle water shutoff agent,
Characterized in that, carrying out as follows：
A, xanthans and NaCl are weighed, be well mixed, be put into the reactor for filling clear water, stirred；
B, to konjaku flour is added in step a reactors, it is stirring while adding, be stirring evenly and then adding into G grades of oil-well cement and flyash,
Continue to stir and obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266794.1A CN104250547B (en) | 2013-06-29 | 2013-06-29 | Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266794.1A CN104250547B (en) | 2013-06-29 | 2013-06-29 | Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104250547A CN104250547A (en) | 2014-12-31 |
| CN104250547B true CN104250547B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310266794.1A Expired - Fee Related CN104250547B (en) | 2013-06-29 | 2013-06-29 | Modified biogel particles blocking agent used for precision screen pipe of thick oil horizontal well |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105037819A (en) * | 2015-07-14 | 2015-11-11 | 桂林市和鑫防水装饰材料有限公司 | Environmental-friendly plugging agent |
| CN105038742A (en) * | 2015-07-14 | 2015-11-11 | 桂林市和鑫防水装饰材料有限公司 | High-elasticity waterproof plugging agent |
| CN107936935A (en) * | 2017-11-22 | 2018-04-20 | 烟台智本知识产权运营管理有限公司 | A kind of method of coal-fired waste residue recycling |
| CN116064022B (en) * | 2021-11-01 | 2024-06-04 | 中国石油化工股份有限公司 | Oil field profile control water shutoff composition and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1617133A1 (en) * | 1988-10-17 | 1990-12-30 | Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам | Plugging composition |
| CN1566254A (en) * | 2003-06-26 | 2005-01-19 | 大庆油田有限责任公司 | Cement fly ash profile control agent for plugging of oil and water well |
| CN1745048A (en) * | 2003-01-30 | 2006-03-08 | 格雷斯公司 | High solids pumpable cement additives |
| CN1900124A (en) * | 2005-07-15 | 2007-01-24 | 国家淀粉及化学投资控股公司 | Modified polysaccharides |
| CN102391845A (en) * | 2011-09-13 | 2012-03-28 | 任丘市华北石油通运石油机械有限公司 | Composite chemical blocking agent |
| CN102746835A (en) * | 2012-07-17 | 2012-10-24 | 新疆华油技术服务股份有限公司 | Carbonatite oil well density selectivity water shutoff agent and preparation process thereof |
-
2013
- 2013-06-29 CN CN201310266794.1A patent/CN104250547B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1617133A1 (en) * | 1988-10-17 | 1990-12-30 | Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам | Plugging composition |
| CN1745048A (en) * | 2003-01-30 | 2006-03-08 | 格雷斯公司 | High solids pumpable cement additives |
| CN1566254A (en) * | 2003-06-26 | 2005-01-19 | 大庆油田有限责任公司 | Cement fly ash profile control agent for plugging of oil and water well |
| CN1900124A (en) * | 2005-07-15 | 2007-01-24 | 国家淀粉及化学投资控股公司 | Modified polysaccharides |
| CN102391845A (en) * | 2011-09-13 | 2012-03-28 | 任丘市华北石油通运石油机械有限公司 | Composite chemical blocking agent |
| CN102746835A (en) * | 2012-07-17 | 2012-10-24 | 新疆华油技术服务股份有限公司 | Carbonatite oil well density selectivity water shutoff agent and preparation process thereof |
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|---|---|
| CN104250547A (en) | 2014-12-31 |
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Granted publication date: 20170524 Termination date: 20190629 |