CN107298968A - A kind of haydite filling fractured well silicon urea formaldehyde sealing agent and its application process - Google Patents
A kind of haydite filling fractured well silicon urea formaldehyde sealing agent and its application process Download PDFInfo
- Publication number
- CN107298968A CN107298968A CN201610231428.6A CN201610231428A CN107298968A CN 107298968 A CN107298968 A CN 107298968A CN 201610231428 A CN201610231428 A CN 201610231428A CN 107298968 A CN107298968 A CN 107298968A
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- parts
- haydite
- fractured well
- urea formaldehyde
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
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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
- C09K8/5083—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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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- 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)
- Chemical Kinetics & Catalysis (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Sealing Material Composition (AREA)
Abstract
Fractured well silicon urea formaldehyde sealing agent is filled the invention discloses a kind of haydite, is made up of the component of following parts by weight：15 parts~35 parts of sodium metasilicate, 17.5 parts~37.5 parts of curing agent, 0.05 part~1 part of tackifier, 0.05 part~1 part of suspending agent, 53 parts~77.9 parts of water.The curing agent is selected from glyoxal.The thickener is selected from Sodium Polyacrylate.The suspending agent is selected from polyanion cellulose.The haydite filling fractured well silicon urea formaldehyde sealing agent of the present invention, the haydite for 100 DEG C~160 DEG C of temperature fills fractured well water blockoff, using when, be pumped into the haydite filling stratum of fractured well, closing well is waited solidifying more than 48 hours.Haydite filling fractured well silicon urea formaldehyde sealing agent of the invention, injection is good, and compression strength is big after solidification, can reach 500~2000KPa, and liquid stability is strong, and setting time is any controllable at 8~48 hours, it is ensured that injects safety and expands blocking radius.
Description
Technical field
The present invention relates to a kind of fractured well sealing agent, and in particular to the component of haydite filling fractured well silicon urea formaldehyde sealing agent and application
Method, belongs to technical field of oilfield chemistry.
Background technology
In the prior art, low permeability oil field takes fracturing technique that oil-bearing reservoir is extruded many bar man-made fractures, is subsequently added haydite
Filling enters man-made fracture, the penetrating power of oil-bearing reservoir oil-gas Layer is improved, to increase oil well output；But after a period of time, ground
Layer water will be altered along man-made fracture into making the aqueous rapid increase of fractured well, even " water logging ", cause pressure break oil-bearing reservoir to lose exploitation
The value (as shown in Figure 1) of oil.Conventional measure is first blocks man-made fracture, then carries out pressure break to other reservoirs, utilizes
New filling crack exploitation oil.If not implementing closure to first time man-made fracture, necessarily make second of man-made fracture and first time
Man-made fracture is connected, and causes fractured well " water logging " again, it is impossible to exploit oil (as shown in Figure 1).Block " water logging " artificial
Waterglass calcium chloride water shutoff agent technology is often used in crack, and its closure principle is：Waterglass and calcium chloride are implanted sequentially fractured well,
Met generation precipitated calcium silicate in man-made fracture.Method is：Waterglass and chlorine are prepared respectively in two containers on ground before being pumped into
Change calcium, waterglass and calcium chloride are kept apart with insulating liquid, are injected separately into well.However, this technology exist plugging strength it is low,
Working procedure is difficult to control to wait not enough, if insulating liquid consumption is excessive, two kinds of liquid can not meet, it is impossible to produce precipitation or a small amount of heavy
Form sediment, do not reach the requirement of overall closure；If insulating liquid consumption is few, make sodium metasilicate and calcium chloride produced in pit shaft precipitation and can not
It is injected into stratum, low intensity, not resistance to erosion, does not reach the requirement to the complete closure of Water Flooding Layer, however it remains water breakthrough problem.
Therefore, waterglass and calcium chloride water-plugging technique are not suitable for haydite filling fractured well.
The content of the invention
For above-mentioned prior art, the invention provides a kind of haydite filling fractured well silicon urea formaldehyde sealing agent and its application process.
The present invention is achieved by the following technical solutions：
A kind of haydite fills fractured well silicon urea formaldehyde sealing agent, is made up of the component of following parts by weight：Sodium metasilicate 15 parts~35
Part, 17.5 parts~37.5 parts of curing agent, 0.05 part~1 part of tackifier, 0.05 part~1 part of suspending agent, water 53 parts~77.9
Part.
It is preferred that, it is made up of the component of following parts by weight：35 parts of sodium metasilicate, 17.5 parts of curing agent, 0.2 part of tackifier,
0.2 part of suspending agent, 54.6 parts of water.
The curing agent is selected from glyoxal.
The thickener is selected from Sodium Polyacrylate.
The suspending agent is selected from polyanion cellulose.
The preparation method of haydite filling fractured well silicon urea formaldehyde sealing agent is：Sodium metasilicate, thickener and suspending agent are dissolved in
In water, curing agent is added, after dissolving, is produced.Using when, be pumped into the haydite filling stratum of fractured well, closing well waits solidifying 48
More than hour.
The haydite filling fractured well silicon urea formaldehyde sealing agent of the present invention, is blocked up for 100 DEG C~160 DEG C of haydite filling fractured well of temperature
Water, plugging strength is up to 500~2000KPa.
The haydite filling fractured well silicon urea formaldehyde sealing agent of the present invention, has the advantages that：
(1) liquid viscosity is less than 15mPas before solidifying, and easily prepares, and injection is good, and construction technology is simple, and efficiency of construction is high.
(2) sodium metasilicate has adsorptivity with ceramsite sand siliceous surface, it is easy to resident in haydite filling bed, and compression strength is big after solidification,
500~2000KPa can be reached, high intensity is set up and integrally blocks.
(3) liquid stability is strong, can be at static 5 hours without deposited phenomenon, it is possible to achieve integrally curing, it is ensured that closure effect
Really.
(4) setting time is any controllable at 8~48 hours, it is ensured that injects safety and expands blocking radius.
Brief description of the drawings
Fig. 1：Haydite fills fractured well schematic diagram.
Embodiment
With reference to embodiment, the present invention is further illustrated.
Involved instrument, reagent, material etc. in following embodiments, are existing normal in the prior art unless otherwise noted
Instrument, reagent, material etc. are advised, can be obtained by regular commercial sources.Involved experimental method in following embodiments, detection
Method etc., is existing normal experiment method in the prior art, detection method etc. unless otherwise noted.
Embodiment 1 prepares haydite filling fractured well silicon urea formaldehyde sealing agent
It is formulated as (each component is by weight)：15 parts of sodium metasilicate, 17.5 parts of curing agent, 0.1 part of tackifier, suspending agent
0.1 part, 77.8 parts of water.
The curing agent is glyoxal.The thickener is Sodium Polyacrylate.The suspending agent is polyanion cellulose.
Preparation method is：Sodium metasilicate, thickener and suspending agent are dissolved in the water, curing agent is added, after dissolving, produced.
Using when, be pumped into fractured well haydite filling stratum, close shaft collar reaction, make sealing agent in artificial stratum integrally curing.
Embodiment 2 prepares haydite filling fractured well silicon urea formaldehyde sealing agent
It is formulated as (each component is by weight)：25 parts of sodium metasilicate, 32.5 parts of curing agent, 0.4 part of tackifier, suspending agent
0.4 part, 61.2 parts of water.
The other the same as in Example 1.
Embodiment 3 prepares haydite filling fractured well silicon urea formaldehyde sealing agent
It is formulated as (each component is by weight)：35 parts of sodium metasilicate, 17.5 parts of curing agent, 0.2 part of tackifier, suspending agent
0.2 part, 54.6 parts of water.
The other the same as in Example 1.
Above-described embodiment 1, embodiment 2 and the gained haydite of embodiment 3 filling fractured well silicon urea formaldehyde sealing agent, static state place 5
Hour, without deposited phenomenon；Properties are tested, parameter value is shown in Table 1.
Table 1
Although the above-mentioned embodiment in conjunction with the embodiments to the present invention is described, not to the scope of the present invention
Limitation, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art need not
Pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (8)
1. a kind of haydite fills fractured well silicon urea formaldehyde sealing agent, it is characterised in that：It is made up of the component of following parts by weight：
15 parts~35 parts of sodium metasilicate, 17.5 parts~37.5 parts of curing agent, 0.05 part~1 part of tackifier, suspending agent 0.05 part~1
Part, 53 parts~77.9 parts of water.
2. haydite according to claim 1 fills fractured well silicon urea formaldehyde sealing agent, it is characterised in that：The curing agent choosing
From glyoxal.
3. fractured well silicon urea formaldehyde sealing agent is filled according to claim 1 or described haydite, it is characterised in that：The thickener
Selected from Sodium Polyacrylate.
4. the haydite filling fractured well silicon urea formaldehyde sealing agent according to claim 1 or 2 or 3, it is characterised in that：It is described
Suspending agent is selected from polyanion cellulose.
5. fractured well silicon urea formaldehyde sealing agent is filled according to haydite according to any one of claims 1 to 4, it is characterised in that：It is
It is made up of the component of following parts by weight：35 parts of sodium metasilicate, 17.5 parts of curing agent, 0.2 part of tackifier, 0.2 part of suspending agent,
54.6 parts of water.
6. haydite according to any one of claims 1 to 5 fills the preparation method of fractured well silicon urea formaldehyde sealing agent, its feature exists
In：Sodium metasilicate, thickener and suspending agent are dissolved in the water, curing agent is added, after dissolving, produced.
7. haydite filling fractured well silicon urea formaldehyde sealing agent according to any one of claims 1 to 5 is blocked up in haydite filling fractured well
Application in water.
8. application according to claim 7, it is characterised in that：Using when, haydite is filled into fractured well silicon urea formaldehyde and blocked
Agent is pumped into the haydite filling stratum of fractured well, and closing well is waited solidifying more than 48 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231428.6A CN107298968A (en) | 2016-04-14 | 2016-04-14 | A kind of haydite filling fractured well silicon urea formaldehyde sealing agent and its application process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231428.6A CN107298968A (en) | 2016-04-14 | 2016-04-14 | A kind of haydite filling fractured well silicon urea formaldehyde sealing agent and its application process |
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| Publication Number | Publication Date |
|---|---|
| CN107298968A true CN107298968A (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610231428.6A Pending CN107298968A (en) | 2016-04-14 | 2016-04-14 | A kind of haydite filling fractured well silicon urea formaldehyde sealing agent and its application process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116998A (en) * | 2019-12-20 | 2020-05-08 | 煤炭科学技术研究院有限公司 | Mining environment-friendly phase-change gel drilling sealing material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616590A (en) * | 2004-09-13 | 2005-05-18 | 中国科学院广州化学研究所 | Water glass high temperature blocking agent for oil production |
| CN101475794A (en) * | 2009-01-12 | 2009-07-08 | 中国石化集团西北石油局 | High temperature resistant and salt resistant chemical water blockoff agent and production method thereof |
| US20110114314A1 (en) * | 2009-11-19 | 2011-05-19 | Bj Services Company | Water Control Additive Compounds and Methods of Making and Using Same |
| CN102618234A (en) * | 2011-03-30 | 2012-08-01 | 中国石油化工集团公司 | High sulfur-containing gas well gas testing commissioning operation temporary plugging agent |
| CN103756653A (en) * | 2013-12-19 | 2014-04-30 | 中国石油集团渤海钻探工程有限公司 | Solid-free anti-salt cleaning type well cementation spacer fluid and preparation method thereof |
-
2016
- 2016-04-14 CN CN201610231428.6A patent/CN107298968A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616590A (en) * | 2004-09-13 | 2005-05-18 | 中国科学院广州化学研究所 | Water glass high temperature blocking agent for oil production |
| CN101475794A (en) * | 2009-01-12 | 2009-07-08 | 中国石化集团西北石油局 | High temperature resistant and salt resistant chemical water blockoff agent and production method thereof |
| US20110114314A1 (en) * | 2009-11-19 | 2011-05-19 | Bj Services Company | Water Control Additive Compounds and Methods of Making and Using Same |
| CN102618234A (en) * | 2011-03-30 | 2012-08-01 | 中国石油化工集团公司 | High sulfur-containing gas well gas testing commissioning operation temporary plugging agent |
| CN103756653A (en) * | 2013-12-19 | 2014-04-30 | 中国石油集团渤海钻探工程有限公司 | Solid-free anti-salt cleaning type well cementation spacer fluid and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张子麟: "硅质树脂封窜调剖体系研制及应用", 《特种油气藏》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116998A (en) * | 2019-12-20 | 2020-05-08 | 煤炭科学技术研究院有限公司 | Mining environment-friendly phase-change gel drilling sealing material |
| CN111116998B (en) * | 2019-12-20 | 2022-02-18 | 煤炭科学技术研究院有限公司 | Mining environment-friendly phase-change gel drilling sealing material |
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Application publication date: 20171027 |
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| RJ01 | Rejection of invention patent application after publication |