CN105567190A - Gel plugging agent and preparation method thereof - Google Patents
Gel plugging agent and preparation method thereof Download PDFInfo
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- CN105567190A CN105567190A CN201410553801.0A CN201410553801A CN105567190A CN 105567190 A CN105567190 A CN 105567190A CN 201410553801 A CN201410553801 A CN 201410553801A CN 105567190 A CN105567190 A CN 105567190A
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Abstract
The invention relates to a gel plugging agent used in the oil and gas field drilling and plugging operation and a preparation method thereof, in particular to a gel expansion plugging agent containing functional groups capable of enhancing the interaction with a stratum in molecules. The plugging agent is formed by the copolymerization of four monomers, wherein the first monomer is used for providing the hydrophilic property for the plugging agent and promoting the absorption and the expansion of materials; the second monomer is a cationic monomer, is used for providing positively-charged groups, increasing the charge attractive interaction between the plugging agent and a leaky pore channel well wall; the third monomer is an unsaturated organic silicon coupling agent monomer and can improve the retentivity of the plugging agent on a leakage layer; the fourth monomer is a polyunsaturated key functional monomer and is used for enabling the plugging agent to form chemical crosslinking. The gel plugging agent provided by the invention is polymerized by adopting an aqueous solution and is simple in process and convenient to operate. The gel plugging agent prepared by the invention has the advantages that the water absorbing and expansion capacities are strong; as the plurality of functional groups capable of forming mechanical interaction with the leakage layer are contained, the retentivity of the plugging materials on the leakage layer can be improved.
Description
Technical field
The present invention relates in GEL USED FOR PLUGGING WELL LOST CIRCULATION in a kind of oilfield drilling plugging operations and preparation method thereof, particularly a kind of molecule containing the gel expansion plugging agent that can strengthen the interactional functional group with stratum.
Background technology
Leakage is the challenge existed in drilling operation, it makes drilling fluid bleed leakage channel from well, not only the mud of at substantial and patching materials, and may cause well slough, bit freezing, blowout, the Serious Accident such as even cause that well is scrapped, causes huge financial loss.Patching materials is requisite material in drilling well leak-proof leak-stopping process, and its performance directly affects the success ratio of blocking construction.
Domesticly just start to apply patching materials process leakage in the sixties in 20th century, and carried out some basic research works.In whole period before 20 century 70s, main employing is highly stickyly cut drilling fluid and is added the methods such as bridging material (sawdust, mica, straw, mud ball, fragment of brick etc.) and cementing plug, patching materials and method single, often cause the failure of Slot Handling.The eighties in 20th century, the prelude of this developmental stage has been pulled open in the research application of bridge joint patching materials, the novel blocking agents such as various chemical plugging agent, high dehydration blocking agent, the thick slurry of mixing leak stopping are arisen at the historic moment, for the success ratio tackling various types of leakage, raising processes leakage provides means.In the last few years, people focused on the prevention of leakage more, and leak-proof sealing agent widespread adoption, in scene, decreases leakage incidence; Single bridge joint patching materials has changed into compound leakage stop agent, improves leak stopping efficiency; Focus on the protection of hydrocarbon zone, have developed a series of plugging agents such as Acid Dissoluble Loss Circulation Material, uniaxial pressure plugging agent, solubility in acid solidify material, expansion plugging agent.But, under severe leakage hole condition, compound leakage stop agent exists each Component seperation cannot provide that synergy, expansion plugging agent water-swelling amount are little, plugging agent is not easy to stable be trapped in the medium problem of drop ply under applied external force, thus after being easy to cause the not good and leak stopping of plugging effect, repeatability leakage occurs.
Therefore, effective New Kind of Plugging Agent is still current priority fields of study, is also an important ring of drilling well leak-proof leak-stopping work, has realistic meaning for the operation of promotion drilling safety.
Summary of the invention
An object of the present invention there are provided a kind of drilling leakage blockage GEL USED FOR PLUGGING WELL LOST CIRCULATION.
Two of object of the present invention there are provided the preparation method of this GEL USED FOR PLUGGING WELL LOST CIRCULATION.
GEL USED FOR PLUGGING WELL LOST CIRCULATION of the present invention, it is formed by following four class monomer copolymerizations: the first monomer is selected from one in acrylamide, sodium acrylate or its mixture; Second comonomer is selected from the one in acryloxyethyldimethyl benzyl ammonium chloride, methylacryloxyethyldimethyl benzyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride; Third monomer is selected from the one in vinyltriethoxysilane, vinyltrimethoxy silane, vinyl three (2-methoxyethoxy) silane, vinyl silane triisopropoxide, γ-methacryloxypropyl trimethoxy silane, γ-methacryloxypropyl three isopropoxy silane, methacryloxymethyl dimethoxysilane; 4th monomer is selected from the one in dimethyl diallyl ammonium chloride, N,N methylene bis acrylamide.
Wherein, the mass ratio of four Type of Collective monomers is as follows: the first monomer: 50-95%; Second comonomer: 1-40%; Third monomer: 1-20%; 4th monomer: 0.01-1%.
In the GEL USED FOR PLUGGING WELL LOST CIRCULATION of preparation, four class monomers provide not same-action respectively, if the first monomer is sodium acrylate or acrylamide, can provide wetting ability for plugging agent, promote the water-swelling of material; Second comonomer is cationic monomer, after copolymerization, can increase the water-absorbent of material further, by providing positively charged group, can increase the electric charge adelphotaxy of plugging agent with the leakage duct borehole wall simultaneously; 3rd class is unsaturated organosilicon coupling agent monomer, and this kind of monomer can pass through hydrolysis, the condensation of silicon ehter bond, and borehole wall clay produces chemistry gummed, reaches and improves the effect of plugging agent in loss horizon retentivity; 4th class is many unsaturated link(age)s function monomer, makes plugging agent form chemically crosslinked, provides the intensity of the rear material of water suction and keeps the effect of plugging agent shape.
A preparation method for GEL USED FOR PLUGGING WELL LOST CIRCULATION, comprises following four steps:
(1) the first monomer, second comonomer, Third monomer and the 4th monomer are mixed with the aqueous solution, make described monomer mass concentration be 10%-40%;
(2) at solution temperature 0-10 DEG C, in monomer solution, add initiator, continue in the aqueous solution, to pass into inert nitrogen gas to remove oxygen, keep 30 minutes-60 minutes;
(3) at nitrogen atmosphere, 10 DEG C-80 DEG C are warming up to, make described monomer solution carry out solution polymerization 1-6 hour,
(4) react gained jelly and be placed in vacuum drying oven 30-80 DEG C drying 24 hours, after pulverizing, obtain granulated gel plugging agent.
In preparation process, the initiator adopted is oxidation-reduction trigger system, be specially Sodium Persulfate-sodium bisulfite, ammonium persulphate-tetramethylolmethane one of them, oxygenant Sodium Persulfate or ammonium persulphate and reductive agent sodium bisulfite or tetramethylolmethane mass ratio are 1:1.Initiator quality accounts for the 0.001%-0.05% of monomer total mass.
Compared to the prior art, beneficial effect of the present invention has:
(1) in raw material, hydrophilic monomers content is higher, and the plugging agent water-swelling ability of preparation is strong;
(2) the interactional functional group of mechanics can be formed containing multiple with drop ply, improve the retentivity of patching materials at drop ply, increase leak stopping success ratio.
Embodiment
Below by embodiment, the present invention is further illustrated, and its object is only better to understand the present invention and unrestricted the scope of protection of the invention.
Embodiment 1
The first monomeric acrylamide 12.50g is added in 500mL four-hole bottle, second comonomer acryloxyethyldimethyl benzyl ammonium chloride 10.00g, Third monomer methacryloxymethyl dimethoxysilane 2.25g, 4th monomer N, N-methylene-bisacrylamide 0.25g and distilled water 200.00g, mechanical stirring makes it dissolve completely; Ice-water bath is cooled to 2 DEG C, adds Sodium Persulfate 0.0013g, sodium bisulfite 0.0013g; In the aqueous solution, pass into inert nitrogen gas, keep 60 minutes; Under nitrogen atmosphere, at being warming up to 10 DEG C, stirring reaction is after 10 hours, and discharging, is placed in vacuum drying oven 40 DEG C of dryings 24 hours, pulverizes to obtain particulate state plugging agent sample 1.By sample fine powder by Infrared spectroscopy, visible each characteristic group absorption peak.
Embodiment 2
The first monomeric acrylamide 47.5g is added in 250mL four-hole bottle, second comonomer MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 0.50g, Third monomer vinyltrimethoxy silane 1.00g, 4th monomer N, N-methylene-bisacrylamide 0.005g and distilled water 75.00g, mechanical stirring makes it dissolve completely; Ice-water bath is cooled to 5 DEG C, adds ammonium persulphate 0.0125g, sodium bisulfite 0.0125g; In the aqueous solution, pass into inert nitrogen gas, keep 30 minutes; Under nitrogen atmosphere, at being warming up to 30 DEG C, stirring reaction is after 4 hours, and discharging, is placed in vacuum drying oven 80 DEG C of dryings 12 hours, pulverizes to obtain particulate state plugging agent sample 2.
Embodiment 3
In 250mL four-hole bottle, the first monomer adds sodium acrylate 25.00g, second comonomer methylacryloxyethyldimethyl benzyl ammonium chloride 14.90g, Third monomer vinyl silane triisopropoxide 10.00g, 4th monomer N, N-methylene-bisacrylamide 0.10g and distilled water 150.00g, mechanical stirring makes it dissolve completely; Ice-water bath is cooled to 5 DEG C, adds ammonium persulphate 0.008g, tetramethylolmethane 0.008g; In the aqueous solution, pass into inert nitrogen gas, keep 60 minutes; Under nitrogen atmosphere, at being warming up to 30 DEG C, stirring reaction is after 8 hours, and discharging, is placed in vacuum drying oven 60 DEG C of dryings 12 hours, pulverizes to obtain particulate state plugging agent sample 3.
Embodiment 4
Plugging agent has requirement to visco-elasticity and swelling property, therefore determines sample water-swelling speed and the water-retaining capacity of preparation.
Water-swelling property measuring method: get 8-16 order particulate crosslinked polymer plugging agent sample 1.00g, join in 300mL distilled water under room temperature, 40 mesh sieves are crossed after 20min, 40min, 60min, 120min and 240min, removing can mobile moisture, weigh the quality m1 of the rear sample of water suction, according to following formulae discovery water-absorbent expanding multiple Q:
Q=(m
1-1)/1
Table with test results 1:
Table 1 GEL USED FOR PLUGGING WELL LOST CIRCULATION water-swelling property
Claims (4)
1. a GEL USED FOR PLUGGING WELL LOST CIRCULATION, is characterized in that being formed by following four class monomer copolymerizations:
First monomer is selected from one in acrylamide, sodium acrylate or its mixture;
Second comonomer is selected from the one in acryloxyethyldimethyl benzyl ammonium chloride, methylacryloxyethyldimethyl benzyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride;
Third monomer is selected from the one in vinyltriethoxysilane, vinyltrimethoxy silane, vinyl three (2-methoxyethoxy) silane, vinyl silane triisopropoxide, γ-methacryloxypropyl trimethoxy silane, γ-methacryloxypropyl three isopropoxy silane, methacryloxymethyl dimethoxysilane;
4th monomer is selected from the one in dimethyl diallyl ammonium chloride, N,N methylene bis acrylamide;
Wherein, the mass ratio of four Type of Collective monomers is as follows: the first monomer: 50-95%; Second comonomer: 1-40%; Third monomer: 1-20%; 4th monomer: 0.01-1%.
2. prepare a preparation method for GEL USED FOR PLUGGING WELL LOST CIRCULATION as claimed in claim 1, comprise the steps:
(1) the first monomer, second comonomer, Third monomer and the 4th monomer are mixed with the aqueous solution, make described monomer mass concentration be 10%-40%;
(2) at solution temperature 0-10 DEG C, in monomer solution, add initiator, continue in the aqueous solution, to pass into inert nitrogen gas to remove oxygen, keep 30 minutes-60 minutes;
(3) at nitrogen atmosphere, be warming up to 10 DEG C-80 DEG C, make described monomer solution carry out solution polymerization 1-6 hour,
(4) react gained jelly and be placed in vacuum drying oven 30-80 DEG C drying 24 hours, after pulverizing, obtain granulated gel plugging agent.
3. the preparation method of GEL USED FOR PLUGGING WELL LOST CIRCULATION as claimed in claim 2, it is characterized in that described initiator is oxidation-reduction trigger system, be one of Sodium Persulfate-sodium bisulfite, ammonium persulphate-tetramethylolmethane, oxygenant and reductive agent mass ratio are 1:1.
4. the preparation method of GEL USED FOR PLUGGING WELL LOST CIRCULATION as claimed in claim 2, is characterized in that described initiator quality accounts for the 0.001%-0.05% of monomer total mass.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669896A (en) * | 2016-03-14 | 2016-06-15 | 中国石油天然气股份有限公司 | Thermosensitive copolymer gel profile control water shutoff agent and preparation method and application thereof |
| CN105949387A (en) * | 2016-05-16 | 2016-09-21 | 浙江大学 | Preparation method of stabilizer-free cationic water-soluble polymer aqueous dispersing liquid |
| CN106381138A (en) * | 2016-09-14 | 2017-02-08 | 中国石油集团渤海钻探工程有限公司 | High-pressure-bearing free-crosslinking supermolecule composite gel leaking plugging agent and preparation method thereof |
| WO2019016304A1 (en) | 2017-07-20 | 2019-01-24 | Danmarks Tekniske Universitet | Quick-setting elastomer plugging composition |
| CN109776727A (en) * | 2017-11-13 | 2019-05-21 | 中石化石油工程技术服务有限公司 | A kind of preparation method of drilling fluid pH responsive type plugging material |
| CN111836841A (en) * | 2018-07-04 | 2020-10-27 | 瓦克化学股份公司 | Water-soluble copolymer |
| CN113651915A (en) * | 2020-08-26 | 2021-11-16 | 中国石油大学(北京) | Gel polymer for bionic while-drilling pressure-bearing leaking stoppage drilling fluid |
| CN114621392A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | High-temperature-resistant organic silicon polymer gel plugging agent, preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085590A (en) * | 1992-10-13 | 1994-04-20 | 江汉石油学院应用化学研究所 | A kind of water-pluging Polymer amendment |
| EP0933414A1 (en) * | 1998-01-30 | 1999-08-04 | Halliburton Energy Services, Inc. | Reducing the amount of water produced with hydrocarbons from wells |
| US20060065396A1 (en) * | 2004-08-13 | 2006-03-30 | Dawson Jeffrey C | Compositions containing water control treatments and formation damage control additives, and methods for their use |
| CN101586023A (en) * | 2009-07-08 | 2009-11-25 | 中国石油大学(华东) | High-strength pre-crosslinked gel sealing agent for drilling well and preparation method thereof |
| CN102649830A (en) * | 2012-05-17 | 2012-08-29 | 陕西科技大学 | Preparation method for cation organic silicon modified polyacrylamide |
| CN103361039A (en) * | 2013-08-02 | 2013-10-23 | 中国石油集团川庆钻探工程有限公司 | Plugging method for generating fluid gel of plugging valve plugging gas layer by using formation temperature |
| CN105482790A (en) * | 2014-09-17 | 2016-04-13 | 中国石油化工股份有限公司 | Efficient leak-stopping material for drilling, and preparation method thereof |
-
2014
- 2014-10-17 CN CN201410553801.0A patent/CN105567190A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085590A (en) * | 1992-10-13 | 1994-04-20 | 江汉石油学院应用化学研究所 | A kind of water-pluging Polymer amendment |
| EP0933414A1 (en) * | 1998-01-30 | 1999-08-04 | Halliburton Energy Services, Inc. | Reducing the amount of water produced with hydrocarbons from wells |
| US20060065396A1 (en) * | 2004-08-13 | 2006-03-30 | Dawson Jeffrey C | Compositions containing water control treatments and formation damage control additives, and methods for their use |
| CN101586023A (en) * | 2009-07-08 | 2009-11-25 | 中国石油大学(华东) | High-strength pre-crosslinked gel sealing agent for drilling well and preparation method thereof |
| CN102649830A (en) * | 2012-05-17 | 2012-08-29 | 陕西科技大学 | Preparation method for cation organic silicon modified polyacrylamide |
| CN103361039A (en) * | 2013-08-02 | 2013-10-23 | 中国石油集团川庆钻探工程有限公司 | Plugging method for generating fluid gel of plugging valve plugging gas layer by using formation temperature |
| CN105482790A (en) * | 2014-09-17 | 2016-04-13 | 中国石油化工股份有限公司 | Efficient leak-stopping material for drilling, and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赖南君 等: "AA/AM/AMPS/DAC体膨型堵水剂的合成及性能", 《精细化工》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669896A (en) * | 2016-03-14 | 2016-06-15 | 中国石油天然气股份有限公司 | Thermosensitive copolymer gel profile control water shutoff agent and preparation method and application thereof |
| CN105949387A (en) * | 2016-05-16 | 2016-09-21 | 浙江大学 | Preparation method of stabilizer-free cationic water-soluble polymer aqueous dispersing liquid |
| CN106381138A (en) * | 2016-09-14 | 2017-02-08 | 中国石油集团渤海钻探工程有限公司 | High-pressure-bearing free-crosslinking supermolecule composite gel leaking plugging agent and preparation method thereof |
| CN106381138B (en) * | 2016-09-14 | 2019-04-02 | 中国石油集团渤海钻探工程有限公司 | A kind of high pressure-bearing is without crosslinking supermolecule plural gel sealing agent and preparation method thereof |
| WO2019016304A1 (en) | 2017-07-20 | 2019-01-24 | Danmarks Tekniske Universitet | Quick-setting elastomer plugging composition |
| CN109776727A (en) * | 2017-11-13 | 2019-05-21 | 中石化石油工程技术服务有限公司 | A kind of preparation method of drilling fluid pH responsive type plugging material |
| CN111836841A (en) * | 2018-07-04 | 2020-10-27 | 瓦克化学股份公司 | Water-soluble copolymer |
| CN113651915A (en) * | 2020-08-26 | 2021-11-16 | 中国石油大学(北京) | Gel polymer for bionic while-drilling pressure-bearing leaking stoppage drilling fluid |
| CN114621392A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | High-temperature-resistant organic silicon polymer gel plugging agent, preparation method and application thereof |
| CN114621392B (en) * | 2020-12-11 | 2023-10-27 | 中国石油化工股份有限公司 | High-temperature-resistant organosilicon polymer gel plugging agent, preparation method and application thereof |
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Application publication date: 20160511 |