CN104046344A - Oilfield water injection movable gel plugging agent - Google Patents
Oilfield water injection movable gel plugging agent Download PDFInfo
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- CN104046344A CN104046344A CN201310078645.2A CN201310078645A CN104046344A CN 104046344 A CN104046344 A CN 104046344A CN 201310078645 A CN201310078645 A CN 201310078645A CN 104046344 A CN104046344 A CN 104046344A
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- polyacrylamide
- linking agent
- water injection
- mass ratio
- gel plugging
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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
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
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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)
- Liquid Carbonaceous Fuels (AREA)
- Pyrrole Compounds (AREA)
- Hydrogenated Pyridines (AREA)
- Fats And Perfumes (AREA)
Abstract
A oilfield water injection movable gel plugging agent is characterized by being prepared by adding a heterocyclic resin crosslinking agent with a mass ratio to polyacrylamide of 0.15%-0.3%, an organic chrome crosslinking agent with a mass ratio to polyacrylamide of 0.3%-0.4% and a hexamethylenetetramine-thiourea stabilizer with a mass ratio to polyacrylamide of 0.1%-0.15% into an aqueous solution containing 0.15%-0.3% by mass of polyacrylamide. The oilfield water injection movable gel plugging agent is used for oilfield water injection profile control; the low-cost heterocyclic resin crosslinking agent and the non-toxic organic chrome crosslinking agent are added into the aqueous solution of polyacrylamide, so that the large-scale application economic benefits and environmental protection level can be enhanced.
Description
Technical field: the present invention relates to a kind of oil extraction in oil field Chemicals, especially for the movable gel plugging agent of a kind of oil-field flooding of Profile Control in Injection Well.
Background technology: before the present invention, each oil field, for the polyacrylamide plugging agent of water injectivity profile modification, adopts chromium metal system or the stronger phenolic aldehyde cross-linking system of toxic that cost is higher more, thereby affected economic benefit or the Environmental Protection Level of large-scale application.
Summary of the invention: the object of the invention is: for oil-field flooding profile control provides a kind of oil-field flooding movable gel plugging agent, because this product is the organic chromium linking agent that adds heterocycle resene linking agent and toxicological harmless in the aqueous solution of polyacrylamide, thereby economic benefit and the Environmental Protection Level of large-scale application are improved.
The object of the invention is to realize by following measures: the movable gel plugging agent of a kind of oil-field flooding, comprise polyacrylamide, heterocycle resene linking agent, organic chromium linking agent, vulkacit H-thiocarbamide stablizer, it is characterized in that in the aqueous solution of mass content 0.15%-0.3% polyacrylamide, add and the heterocycle resene linking agent of its mass ratio 0.15%-0.3%, the organic chromium linking agent of 0.3%-0.4%, vulkacit H-thiocarbamide stablizer of 0.1%-0.15%; Wherein heterocycle resene linking agent is by phenol and the furans ring system derivative of mol ratio 1:1 and forms with sodium hydroxide, 17% ethanol of its mass ratio 10%.
The present invention is for oil-field flooding profile control, owing to being the organic chromium linking agent that adds lower-cost heterocycle resene linking agent and toxicological harmless in the aqueous solution of polyacrylamide, thereby improved economic benefit and the Environmental Protection Level of large-scale application.
Embodiment: the movable gel plugging agent of oil-field flooding, be in the aqueous solution of mass content 0.15%-0.3% polyacrylamide, add and the heterocycle resene linking agent of its mass ratio 0.15%-0.3%, the organic chromium linking agent of 0.3%-0.4%, vulkacit H-thiocarbamide stablizer of 0.1%-0.15%; Wherein heterocycle resene linking agent is by phenol and the furans ring system derivative of mol ratio 1:1 and forms with sodium hydroxide, 17% ethanol of its mass ratio 10%.
Embodiment is:
1, the preparation of heterocycle resene linking agent:
1.1 get phenol and the furans ring system derivative (pure substance mol ratio 1:1) of aequum, then by the mass ratio of this total amount 10% get sodium hydroxide, to get ethanol by 17% for subsequent use;
1.2 pour got phenol into reactor passes into steam and heats to 50 DEG C, adds 70% amount of got sodium hydroxide after being melt into liquid, keeps 50 DEG C of temperature of reaction kettle, stirring reaction 20 minutes;
80% amount of got furans ring system derivative is added this reactor by 1.3, keeps 50 DEG C of temperature of reaction kettle, stirring reaction 50 minutes;
1.4 add this reactor, stirring reaction 20 minutes by 30% amount of got sodium hydroxide remainder;
20% amount of got furans ring system derivative remainder is added this reactor by 1.5, keeps 50 DEG C of temperature of reaction kettle, stirring reaction 3 hours;
1.6 by got ethanol all amount add this reactor, obtain bright red-brown, can be completely water-soluble solution finished product.
2, the scene of the movable gel plugging agent of oil-field flooding preparation:
2.1 prepare the aqueous solution of slaking mass content 0.15%-0.3% polyacrylamide in the desired amount;
2.2 add the heterocycle resene linking agent that 0.15%-0.3% made, the organic chromium linking agent of 0.3%-0.4%, vulkacit H-thiocarbamide stablizer of 0.1%-0.15% by its mass ratio of the polyacrylamide solution after slaking;
After 2.3 cooperations, fully stir, make the methylolphenol of polyacrylamide and organic chromium linking agent carry out condensation reaction (reaction formula one), carry out condensation reaction (reaction formula two) with heterocycle resene linking agent;
Reaction formula one:
Reaction formula two:
2.4 question responses complete under direct Injection Well, and closing well 5 days.
Claims (1)
1. the movable gel plugging agent of oil-field flooding, comprise polyacrylamide, heterocycle resene linking agent, organic chromium linking agent, vulkacit H-thiocarbamide stablizer, it is characterized in that: in the aqueous solution of mass content 0.15%-0.3% polyacrylamide, add and the heterocycle resene linking agent of its mass ratio 0.15%-0.3%, the organic chromium linking agent of 0.3%-0.4%, vulkacit H-thiocarbamide stablizer of 0.1%-0.15%; Wherein heterocycle resene linking agent is by phenol and the furans ring system derivative of mol ratio 1:1 and forms with sodium hydroxide, 17% ethanol of its mass ratio 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078645.2A CN104046344B (en) | 2013-03-13 | 2013-03-13 | Oil-field flooding shake gels plugging agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078645.2A CN104046344B (en) | 2013-03-13 | 2013-03-13 | Oil-field flooding shake gels plugging agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104046344A true CN104046344A (en) | 2014-09-17 |
| CN104046344B CN104046344B (en) | 2017-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310078645.2A Active CN104046344B (en) | 2013-03-13 | 2013-03-13 | Oil-field flooding shake gels plugging agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN104046344B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962262A (en) * | 2015-05-22 | 2015-10-07 | 中国石油化工股份有限公司 | Preparation method of novel high-strength plugging agent |
| CN115746808A (en) * | 2021-09-06 | 2023-03-07 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
| CN115746808B (en) * | 2021-09-06 | 2024-04-30 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915170A (en) * | 1989-03-10 | 1990-04-10 | Mobil Oil Corporation | Enhanced oil recovery method using crosslinked polymeric gels for profile control |
| US5259453A (en) * | 1992-06-25 | 1993-11-09 | Phillips Petroleum Company | Blocking water coning in oil and gas producing reservoirs |
| CN102453473A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Organogel blocking agent for water blocking and profile control, and preparation method and application thereof |
-
2013
- 2013-03-13 CN CN201310078645.2A patent/CN104046344B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915170A (en) * | 1989-03-10 | 1990-04-10 | Mobil Oil Corporation | Enhanced oil recovery method using crosslinked polymeric gels for profile control |
| US5259453A (en) * | 1992-06-25 | 1993-11-09 | Phillips Petroleum Company | Blocking water coning in oil and gas producing reservoirs |
| CN102453473A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Organogel blocking agent for water blocking and profile control, and preparation method and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 卢冲等: "尕斯库勒油田N1- N2调剖堵剂配方选择", 《内蒙古石油化工》 * |
| 潘丽娟等: "特种凝胶ZND成胶强度影响因素研究", 《西安石油大学学报(自然科学版)》 * |
| 陈学东: "水溶性树脂交联剂的合成", 《科技论坛》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962262A (en) * | 2015-05-22 | 2015-10-07 | 中国石油化工股份有限公司 | Preparation method of novel high-strength plugging agent |
| CN115746808A (en) * | 2021-09-06 | 2023-03-07 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
| CN115746808B (en) * | 2021-09-06 | 2024-04-30 | 中国石油天然气股份有限公司 | Plugging agent and application thereof |
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| Publication number | Publication date |
|---|---|
| CN104046344B (en) | 2017-06-06 |
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