CN104277802A - High temperature resistant compound gel sealing channeling agent and preparation method thereof - Google Patents
High temperature resistant compound gel sealing channeling agent and preparation method thereof Download PDFInfo
- Publication number
- CN104277802A CN104277802A CN201310275690.7A CN201310275690A CN104277802A CN 104277802 A CN104277802 A CN 104277802A CN 201310275690 A CN201310275690 A CN 201310275690A CN 104277802 A CN104277802 A CN 104277802A
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- Prior art keywords
- agent
- high temperature
- temperature resistant
- polyacrylamide
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Classifications
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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
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
-
- 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
Abstract
The invention discloses a high temperature resistant compound gel sealing channeling agent and a preparation method thereof, the high temperature resistant compound gel sealing channeling agent comprises the following components in parts by weight: 85 to 90 parts of water, 0.1 to 0.5 part of polyacrylamide, 0.2 to 0.5 part of a regulator, 1 to 1.5 parts of a gelling agent and 8 to 15 parts of a water soluble silicate. Through use of a formula comprising the polyacrylamide, the regulator, the gelling agent and the water soluble silicate, the compound gel sealing channeling agent is prepared through a specific preparation sequence, the compound gel sealing channeling agent is suitable for 60-300 DEG of heavy oil steam channeling wells, is low in liquidity and viscosity, can effectively enter into the deep formation, is controllable in gelling time and high in gel strength, and has the advantages of high temperature resistance, high sealing channeling rate and the like.
Description
Technical field
The envelope that the present invention relates to for oil well alters agent, particularly relates to a kind of high temperature resistant plural gel envelope and alters agent and preparation method thereof.
Background technology
Current viscous crude envelope is altered water blockoff aspect and is mainly contained the formulations such as the particulate species blocking agents such as traditional cements, high temperature organogel, thermosetting resin, gel particle blocking agent, foam class plugging agent.Wherein the particulate species blocking agent such as traditional cements exists that particle diameter is large, non-selectivity, easily causes the shortcoming of reservoir damage; High temperature organogel is on the high side; Thermosetting resin non-selectivity, curing speed are very responsive to temperature, poor controllability; Gel particle blocking agent cannot inject earth formation deep; Foam class plugging agent plugging strength is low, invade well bad adaptability in the water of strong limit.Thus cause and alter at viscous crude envelope vapour, in stifled limit water, deep profile controlling, lack the medicament that economic serviceability is stronger.
Therefore, prior art needs further to improve and develop.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, a kind of high temperature resistant plural gel envelope is the object of the present invention is to provide to alter agent and preparation method thereof, solve the envelope that existing envelope alters that agent temperature tolerance is poor, gelling strength is low, timeliness is short etc. and cause and alter the low technical problem of rate, the envelope that raising envelope alters agent alters efficiency, reduces the manufacturing cost that envelope alters agent.
Technical scheme of the present invention is as follows:
A kind of high temperature resistant plural gel envelope alters agent, comprises following component: the water of 85-90 part, the polyacrylamide of 0.1 part-0.5 part, the conditioning agent of 0.2 part-0.5 part according to weight part, the water-soluble silicate of the gelatinizing agent of 1 part-1.5 parts and 8 parts-15 parts.
Described high temperature resistant plural gel envelope alters agent, and wherein, described conditioning agent is polyalcohols retardant, and described gelatinizing agent is the mineral acid of 30%, and described polyacrylamide is high polymer polyacrylamide.
Described high temperature resistant plural gel envelope alters agent, wherein, comprises following component according to weight part: the water of 88 parts, the polyacrylamide of 0.3 part, the conditioning agent of 0.3 part, the water-soluble silicate of the gelatinizing agent of 1.2 parts and 12 parts.
A kind of high temperature resistant plural gel envelope alters the preparation method of agent, it comprises the following steps: be added to the water by the polyacrylamide of 0.1 weight part-0.5 weight part, stir, the conditioning agent adding 0.2 weight part-0.5 weight part again in described system stirs, and then in system, add the gelatinizing agent of 1 weight part-1.5 weight part, described gelatinizing agent is made to be dispersed in system, add the water-soluble silicate of 8 weight part-15 weight parts in the most backward described system, made gelling system is high temperature resistant plural gel envelope and alters agent.
Described preparation method, wherein, described conditioning agent is polyalcohols retardant, and described gelatinizing agent is the mineral acid of 30%, and described polyacrylamide is high polymer polyacrylamide.
One provided by the invention is high temperature resistant, and plural gel envelope alters agent and preparation method thereof, adopt the formula of polyacrylamide, conditioning agent, gelatinizing agent and water-soluble silicate, by specifically prepare sequential system obtain plural gel envelope alter agent, the present invention's envelope is altered agent and is applicable to 60-300 DEG C of viscous crude vapour and alters well, there is flowable, feature that viscosity is low, so effectively earth formation deep can be entered under normal temperature because preparing in initial 10-20 hour at it; The gelation time adjustment agent added makes gelation time controlled, generally, can increase the consumption of gelation time adjustment agent during bottom temperature height in right amount; Effective cooperation of organic composition and inorganic components, ensured that colloid gelling strength is high, possesses the features such as high temperature resistant simultaneously, finally makes this envelope alter agent envelope and alter that rate is high, validity period is long.
Embodiment
The invention provides a kind of high temperature resistant plural gel envelope and alter agent and preparation method thereof, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of high temperature resistant plural gel envelope and alter agent, following component is comprised: the water of 85-90 part according to weight part, the polyacrylamide of 0.1 part-0.5 part, the conditioning agent of 0.2 part-0.5 part, the water-soluble silicate of the gelatinizing agent of 1 part-1.5 parts and 8 parts-15 parts.Obvious, the weight part of each component can be adjusted as required, obtain optimum performance.
Further, described conditioning agent is polyalcohols retardant, and described gelatinizing agent is the mineral acid of 30%, and described polyacrylamide is high polymer polyacrylamide.
High temperature resistant plural gel envelope of the present invention is altered agent and can be comprised following component according to weight part: the water of 85 parts, the polyacrylamide of 0.5 part, the conditioning agent of 0.5 part, the water-soluble silicate of the gelatinizing agent of 1.5 parts and 15 parts.
Further, comprise following component according to weight part: the water of 90 parts, the polyacrylamide of 0.1 part, the conditioning agent of 0.2 part of part, the water-soluble silicate of the gelatinizing agent of 1 part and 8 parts.
More preferably, comprise following component according to weight part: the water of 88 parts, the polyacrylamide of 0.3 part, the conditioning agent of 0.3 part, the water-soluble silicate of the gelatinizing agent of 1.2 parts and 12 parts.Obvious, in the corresponding scope of each component of the present invention, can suitably adjust each component concentration, this is no longer going to repeat them.
In most preferred embodiment of the present invention, described high temperature resistant plural gel envelope is altered agent and is comprised following component according to weight part: the water of 88 weight parts, the polyacrylamide of 0.3 weight part, the conditioning agent of 0.3 weight part, the gelatinizing agent of 1.2 parts and the water-soluble silicate of 12 weight parts.Obtaining by the parts by weight adjusting each component envelope that described high temperature resistant plural gel envelope alters agent, to alter effect best, and preparation cost is lower.
Present invention also offers the preparation method that a kind of high temperature resistant plural gel envelope alters agent, it comprises the following steps: be added to the water by the polyacrylamide of 0.1-0.5 weight part, stir, the conditioning agent adding 0.2-0.5 weight part again in described system stirs, and then in system, add the gelatinizing agent of 1-1.5 weight part, described gelatinizing agent is made to be dispersed in system, add the water-soluble silicate of 8-15 weight part in the most backward described system, made gelling system is high temperature resistant plural gel envelope and alters agent.
Wherein said conditioning agent is polyalcohols retardant, described gelatinizing agent to be weight content be 30% mineral acid, described polyacrylamide is high polymer polyacrylamide.
In most preferred embodiment of the present invention, such as operate in testing laboratory, what described preparation method was concrete is: the polyacrylamide adding 0.3 part in the water of 88 parts, stir, the conditioning agent adding 0.3 part again in described system stirs, and then adds the gelatinizing agent of 1.2 parts in system, makes described gelatinizing agent be dispersed in system, add the water-soluble silicate of 12 parts in the most backward described system, obtain described high temperature resistant plural gel envelope and alter agent.This envelope is altered agent and place plastic after 2 hours-5 hours in 60 DEG C of water-bath, places and does not occur brokenly glue in 60 days, produce a desired effect.Described high temperature resistant plural gel envelope of the present invention alters agent under 300 DEG C of conditions, not broken glue in 10 days-30 days, solve the envelope that existing envelope alters that agent temperature tolerance is poor, gelling strength is low, timeliness is short etc. and cause and alter the low technical problem of rate, improve the envelope that envelope alters agent and alter efficiency, reduce the manufacturing cost that envelope alters agent.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (6)
1. high temperature resistant plural gel envelope alters an agent, it is characterized in that it is made up of the raw material of following weight: the water of 85-90 part, the polyacrylamide of 0.1-0.5 part, the conditioning agent of 0.2-0.5 part, the gelatinizing agent of 1-1.5 part and the water-soluble silicate of 8-15 part.
2. high temperature resistant plural gel envelope according to claim 1 alters agent, and it is characterized in that described conditioning agent is polyalcohols retardant, described gelatinizing agent is the mineral acid of 30%, and described polyacrylamide is high polymer polyacrylamide.
3. high temperature resistant plural gel envelope according to claim 2 alters agent, it is characterized in that described mineral acid weight content is 30%.
4. high temperature resistant plural gel envelope according to claim 1 alters agent, it is characterized in that it is made up of the raw material of following weight: the water of 88 parts, the polyacrylamide of 0.3 part, the conditioning agent of 0.3 part, the water-soluble silicate of the gelatinizing agent of 1.2 parts and 12 parts.
5. prepare with the raw material of claim 1 method that high temperature resistant plural gel envelope alters agent for one kind, it is characterized in that comprising the following steps: polyacrylamide is added to the water, stir, conditioning agent is added again in described system, stir, and then add gelatinizing agent, mixing, finally add water-soluble silicate, obtain product.
6. preparation method according to claim 5, is characterized in that described conditioning agent is polyalcohols retardant, described gelatinizing agent to be weight content be 30% mineral acid, described polyacrylamide is high polymer polyacrylamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275690.7A CN104277802A (en) | 2013-07-03 | 2013-07-03 | High temperature resistant compound gel sealing channeling agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275690.7A CN104277802A (en) | 2013-07-03 | 2013-07-03 | High temperature resistant compound gel sealing channeling agent and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104277802A true CN104277802A (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310275690.7A Pending CN104277802A (en) | 2013-07-03 | 2013-07-03 | High temperature resistant compound gel sealing channeling agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108949120A (en) * | 2017-05-24 | 2018-12-07 | 中石化石油工程技术服务有限公司 | A kind of drilling fluid invades material and its preparation method and application with high temperature gas reservoir gas-tight |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4564070A (en) * | 1982-01-07 | 1986-01-14 | Marathon Oil Company | Hydrocarbon recovery process using an in situ silicate/polymer gel |
| US20040168804A1 (en) * | 2003-02-27 | 2004-09-02 | Reddy B. Raghava | Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation |
| US20080125334A1 (en) * | 2006-11-28 | 2008-05-29 | Burns Lyle D | Multi-component aqueous gel solution for control of delayed gelation timing and for resulting gel properties |
| CN102516961A (en) * | 2011-11-15 | 2012-06-27 | 中国石油大学(华东) | Organic/inorganic crosslinking system plugging agent applicable to high-temperature oil reservoir |
| CN102876304A (en) * | 2012-09-18 | 2013-01-16 | 中国石油化工股份有限公司 | Bottom water plugging agent system and process for horizontal well |
-
2013
- 2013-07-03 CN CN201310275690.7A patent/CN104277802A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4564070A (en) * | 1982-01-07 | 1986-01-14 | Marathon Oil Company | Hydrocarbon recovery process using an in situ silicate/polymer gel |
| US20040168804A1 (en) * | 2003-02-27 | 2004-09-02 | Reddy B. Raghava | Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation |
| US20080125334A1 (en) * | 2006-11-28 | 2008-05-29 | Burns Lyle D | Multi-component aqueous gel solution for control of delayed gelation timing and for resulting gel properties |
| CN102516961A (en) * | 2011-11-15 | 2012-06-27 | 中国石油大学(华东) | Organic/inorganic crosslinking system plugging agent applicable to high-temperature oil reservoir |
| CN102876304A (en) * | 2012-09-18 | 2013-01-16 | 中国石油化工股份有限公司 | Bottom water plugging agent system and process for horizontal well |
Non-Patent Citations (1)
| Title |
|---|
| 王中华等: "《油田化学品实用手册》", 31 July 2004, 中国石化出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108949120A (en) * | 2017-05-24 | 2018-12-07 | 中石化石油工程技术服务有限公司 | A kind of drilling fluid invades material and its preparation method and application with high temperature gas reservoir gas-tight |
| CN108949120B (en) * | 2017-05-24 | 2021-11-02 | 中石化石油工程技术服务有限公司 | High-temperature gas reservoir gas invasion preventing material for drilling fluid and preparation method and application thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |
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| RJ01 | Rejection of invention patent application after publication |