CN103525385A - Polyacrylamide strong gel for well control and preparation method thereof - Google Patents
Polyacrylamide strong gel for well control and preparation method thereof Download PDFInfo
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- CN103525385A CN103525385A CN201310444512.2A CN201310444512A CN103525385A CN 103525385 A CN103525385 A CN 103525385A CN 201310444512 A CN201310444512 A CN 201310444512A CN 103525385 A CN103525385 A CN 103525385A
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
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- 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
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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Abstract
The invention discloses a polyacrylamide strong gel for well control and a preparation method thereof. The polyacrylamide strong gel for well control consists of the following components in percentage by weight: a base solution comprising 1-6% of polyacrylamide, 2-8% of a structure reinforcing agent, 0.4-8% of an anti-dehydrating agent, 0.2-4% of an antioxidant and the balance of water according to the total solution mass of the prepared polyacrylamide strong gel for well control, and 0.2-10% of a crosslinking agent relative to the mass fraction of the base solution. The polyacrylamide strong gel prepared by the preparation method has the characteristics of high strength, good elasticity, good toughness, good adhesion, high compression strength, good gas tightness and the like, can be directly gelatinized and used in an N80 tube special for an oil field, can be adhered to a sleeve, and can effectively prevent gas from escaping out of a pit shaft to achieve good effects of well control and sealing.
Description
Technical field
Invention relates to strong gel of polyacrylamide and preparation method thereof for a kind of kill-job, and this gel can be used as the kill-job material in oil well and under-balanced drilling process.
Background technology
Oilfield exploitation procedure needs drilling well, completion, workover treatment, and conventional well control fluid is easily missed, large to formation damage.In order to solve practical site problems, oil worker bored the technology such as completion and was studied low injury and anti-leakage well control fluid, gel leakage stopping technology, snubbing serving, underbalance in recent years, above-mentioned technology respectively has excellent, shortcoming, wherein non-snubbing service device is deposited needs plenty of time erecting equipment before use, needs the shortcoming that the plenty of time makes a trip in use procedure.And in underbalance operation, play the casing valve on protection stratum, because it is expensive and may be damaged scope and the degree that has limited its application by drilling tool while running into hole deviation.
In prior art, polymer gel is very common for leak stopping, and application mainly contains two kinds at present.An online cross-linked polymer gel, this gel is by the patching materials plastic in drop ply of being heated under formation temperature; Another kind is can water-swelling cross-linked polymer gel, and this material is mainly High hydrophilous resin.But the cross-linked polymer gel intensity directly forming is lower, pressure high-temp resistant in stratum is limited in one's ability, as China Patent No. " 200710175977.7 " discloses a kind of down-hole gel valve preparation method and constructional method thereof, open day is on 03 05th, 2008, and the volume ratio of base fluid, crosslinked fluid and breaking glue solution is: 40-60%: 20-35%: 20-35%.Wherein: the starting material component concentration of base fluid, crosslinked fluid and breaking glue solution is: A. base fluid: guanidine glue 0.5-2.5%; Sheet alkali 0.1-2%; Formaldehyde 0.2-0.6%; All the other are water.B. crosslinked fluid: borax 0.02-0.05%; All the other are water.C. breaking glue solution: hydrogen peroxide 0.001%-0.005%; All the other are water.
This gel valve is a kind of strong gelling system, well control fluid and reservoir effectively can be isolated, and prevents well control fluid invaded formation, sleeve pipe is played to sealing function simultaneously, prevents the gas leakage such as hydrogen sulfide in stratum.But polymer gel intensity prepared by the method cannot meet higher reservoir pressure and the requirement of temperature, and the preparation cost of this gel is higher.
Summary of the invention
The object of the invention is to overcome the problem that kill-job polymer gel cost is high, compressive strength is limited, heat-resisting property is poor existing in prior art, strong gel of polyacrylamide and preparation method thereof for a kind of kill-job is provided.Strong gel prepared by the present invention has good elasticity and adhesivity, has both had certain intensity, thereby can to sleeve pipe, play good sealing function with sleeve pipe bonding again, effectively prevents gas overflowing pit shaft.
For achieving the above object, the technical solution used in the present invention is as follows:
With the strong gel of polyacrylamide, it is characterized in that, by following component and content, formed:
Base fluid: to prepare the total solution quality of the strong gel of polyacrylamide for kill-job of formation, 1-6% polyacrylamide, the agent of 2-8% structural reinforcing, the anti-dewatering agent of 0.4-8%, 0.2-4% antioxidant, surplus is water;
Linking agent: the massfraction in linking agent with respect to base fluid, linking agent accounts for 0.2-10%.
The viscosity of the strong gel of described polyacrylamide is greater than 100000 mPa s(1.5s
-1, 100 ℃), compressive strength reaches 0.4-1.7MPa/10m.
Described polyacrylamide is one or more mixtures that form in any proportion in nonionic, positively charged ion, negatively charged ion, amphoteric polyacrylamide.
The molecular weight of described polyacrylamide is between 1,000,000-1,200 ten thousand.
Described structural reinforcing agent is one or more mixtures that form in any proportion in calcium carbonate, Z 250, aluminum oxide.
Described anti-dewatering agent is one or more mixtures that form in any proportion in carboxymethyl cellulose, Natvosol, hydroxypropylcellulose.
Described antioxidant is one or more mixtures that form in any proportion in S-WAT, sodium bisulfite.
Described linking agent is one or more mixtures that form in any proportion in resol, Tiorco 677.
The preparation method of the strong gel of polyacrylamide for a kind of kill-job, it is characterized in that: at rotating speed, be under the stirring velocity of 350-450 turn/min, in water, add successively polyacrylamide, antioxidant, anti-dewatering agent and structural reinforcing agent, after fully dissolving, add again linking agent, plastic at 40-120 ℃.
Described adding after linking agent, cross-linking reaction time is 4-48 hour.
Employing the invention has the advantages that:
One, the present invention is comprised of following component and content, base fluid: to prepare the total solution quality of the strong gel of polyacrylamide for kill-job of formation, and 1-6% polyacrylamide, the agent of 2-8% structural reinforcing, the anti-dewatering agent of 0.4-8%, 0.2-4% antioxidant, surplus is water; Linking agent: the massfraction in linking agent with respect to base fluid, linking agent accounts for 0.2-10%; This component and content are according to gel crosslinking reaction mechanism, and the performance characteristics of conjugated polymer gel, by polymer materials and additive, preferably two aspects are comprehensive, the strong gel of low cost of preparation can be applied in 40-120 ℃ of Oil/gas Well, this strong gel has good elasticity and adhesivity, has both had certain intensity, thereby can to sleeve pipe, play good sealing function with sleeve pipe bonding again, effectively prevent gas overflowing pit shaft, play good kill-job, sealing function; While constructing at the scene, can form one section of gel slug that intensity is very high on the top of reservoir, thereby realize safety drilling, completion, kill operation; Can, by well control fluid and reservoir isolation, effectively prevent that top well control fluid from entering reservoir and stoping the gas effusion pit shaft in reservoir simultaneously.
Two, the strong gel in the present invention has good compressive strength, toughness and the stopping property to gas, and this strong gel viscosity is greater than 100000 mPa s(1.5s
-1, 100 ℃), compressive strength can reach 0.4MPa-1.7MPa/10m, and has very high Young's modulus and viscous modulus, and elasticity, much larger than its viscosity, is not easy tension fracture; After forming strong gel, can play kill-job and prevent the effect that formation gas is overflowed.
Three, in preparation method of the present invention: be under the stirring velocity of 350-450 turn/min at rotating speed, in water, add successively polyacrylamide, antioxidant, anti-dewatering agent and structural reinforcing agent, after fully dissolving, add again linking agent, at 40-120 ℃, crosslinking reaction 4-48 hour plastic, if the technical parameter relating to aforementioned is too high or too low, not only can affect dissolution rate, crosslinking reaction degree and gelation time, also can affect viscosity and the compressive strength of the strong gel of formation, and involved technical parameter and add the order of component interrelated, any one technical parameter or add the change of component order, capital cause the viscosity of strong gel and compressive strength undesirable.
To sum up, the strong gel of polyacrylamide in the present invention has that intensity is large, good springiness, good toughness, adhesivity is good, compressive strength is high, to features such as gas tightness are good, can in the N80 of oil field special use pipe, direct plastic use, play good kill-job, sealing function.
Accompanying drawing explanation
Fig. 1 is that the present invention is for the pressure tester structural representation of strong gel.
Embodiment
Embodiment 1
With the strong gel of polyacrylamide, by following component and content, formed:
Base fluid: to prepare the total solution quality of the strong gel of polyacrylamide for kill-job of formation, 1% polyacrylamide, 8% structural reinforcing agent, 8% anti-dewatering agent, 0.2% antioxidant, surplus is water;
Linking agent: the massfraction in linking agent with respect to base fluid, linking agent accounts for 10%.
The viscosity of the strong gel of described polyacrylamide is greater than 100000 mPa s(1.5s
-1, 100 ℃), compressive strength reaches 0.4-1.7MPa/10m.
In the present invention, described polyacrylamide is one or more mixtures that form in any proportion in nonionic, positively charged ion, negatively charged ion, amphoteric polyacrylamide.
In the present invention, the molecular weight of described polyacrylamide is between 1,000,000-1,200 ten thousand.
In the present invention, described structural reinforcing agent is one or more mixtures that form in any proportion in calcium carbonate, Z 250, aluminum oxide.
In the present invention, described anti-dewatering agent is one or more mixtures that form in any proportion in carboxymethyl cellulose, Natvosol, hydroxypropylcellulose.
In the present invention, described antioxidant is one or more mixtures that form in any proportion in S-WAT, sodium bisulfite.
In the present invention, described linking agent is one or more mixtures that form in any proportion in resol, Tiorco 677.
The preparation method of the strong gel of polyacrylamide for a kind of kill-job, comprise: at rotating speed, be under the stirring velocity of 350 turn/min, in water, add successively polyacrylamide, antioxidant, anti-dewatering agent and structural reinforcing agent, after fully dissolving, add again linking agent, plastic at 40 ℃.
In the present invention, described in add after linking agent, cross-linking reaction time is 48 hours.
Embodiment 2
The present embodiment and above-described embodiment are basic identical, and the key distinction is as follows:
With the strong gel of polyacrylamide, by following component and content, formed:
Base fluid: to prepare the total solution quality of the strong gel of polyacrylamide for kill-job of formation, 6% polyacrylamide, 2% structural reinforcing agent, 0.4% anti-dewatering agent, 4% antioxidant, surplus is water;
Linking agent: the massfraction in linking agent with respect to base fluid, linking agent accounts for 0.2%.
The preparation method of the strong gel of polyacrylamide for a kind of kill-job, comprise: at rotating speed, be under the stirring velocity of 450 turn/min, in water, add successively polyacrylamide, antioxidant, anti-dewatering agent and structural reinforcing agent, after fully dissolving, add again linking agent, plastic at 120 ℃.
In the present invention, described in add after linking agent, cross-linking reaction time is 4 hours.
Embodiment 3
The present embodiment and above-described embodiment are basic identical, and the key distinction is as follows:
With the strong gel of polyacrylamide, by following component and content, formed:
Base fluid: to prepare the total solution quality of the strong gel of polyacrylamide for kill-job of formation, 3% polyacrylamide, 4% structural reinforcing agent, 4% anti-dewatering agent, 2% antioxidant, surplus is water;
Linking agent: the massfraction in linking agent with respect to base fluid, linking agent accounts for 6%.
The preparation method of the strong gel of polyacrylamide for a kind of kill-job, comprise: at rotating speed, be under the stirring velocity of 400 turn/min, in water, add successively polyacrylamide, antioxidant, anti-dewatering agent and structural reinforcing agent, after fully dissolving, add again linking agent, plastic at 100 ℃.
In the present invention, described in add after linking agent, cross-linking reaction time is 5 hours.
Embodiment 4
In embodiment 4～6, institute's water is tap water, and the agitator of use is RW28 basic model overhead type mechanical stirrer (German IKA).
And in embodiment 4～6, all utilize the pressure tester of the general N80 pipe processing in oil field, as shown in Figure 1, the compressive strength of strong gel is by this device to test.Pressure tester comprises nitrogengas cylinder, surge tank, six-way valve, gelling vessel, temperature controlling system, temperature measurer, pressure transmitter and computer.On connection line between nitrogengas cylinder and surge tank, be provided with reducing valve, six-way valve is connected with tensimeter, surge tank and gelling vessel respectively, and gelling vessel connects respectively temperature controlling system and temperature measurer, and pressure transmitter is connected to computer.
In the present embodiment, the strong gel of preparation 8728g polyacrylamide (being 70cm with the height in N80 sleeve pipe in experiment), by 95.15%, be that 8305g tap water is added in container, at agitator speed, be about under 400 turn/min, successively 1.2% polyacrylamide, 0.4% antioxidant, 0.5% anti-dewatering agent, 2.5% structural reinforcing agent joined in container.After fully dissolving, then add 0.25% linking agent, pour in the N80 sleeve pipe of 1m in 100 ℃ of plastics, measure its compressive strength and stopping property, compressive strength reaches 28kPa/70cm, is equivalent to 0.4MPa/10m.
The gel formula of table 1 embodiment 4 and compressive strength
Embodiment 5
The strong gel of preparation 8728g polyacrylamide (being 70cm with the height in N80 sleeve pipe in experiment), by 94.1%, be that 8213g tap water is added in container, at agitator speed, be about under 400 turn/min, successively 2% polyacrylamide, 0.2% antioxidant, 1% anti-dewatering agent, 2.5% structural reinforcing agent joined in container.After fully dissolving, then add 0.2% linking agent, pour in the N80 sleeve pipe of 1m in 100 ℃ of plastics, measure its compressive strength and stopping property, compressive strength reaches 40kPa/70cm, is equivalent to 0.57MPa/10m.
The gel formula of table 2 embodiment 5 and compressive strength
Embodiment 6
The strong gel of preparation 8728g polyacrylamide (being 70cm with the height in N80 sleeve pipe in experiment), by 88.6%, be that 7733g tap water is added in container, at agitator speed, be about under 400 turn/min, successively 4% polyacrylamide, 0.2% antioxidant, 4% anti-dewatering agent, 3% structural reinforcing agent are joined in container, after fully dissolving, add 0.2% linking agent, pour in the N80 sleeve pipe of 1m in 100 ℃ of plastics, measure its compressive strength and stopping property, compressive strength reaches 119kPa/70cm, is equivalent to 1.7MPa/10m.
The gel formula of table 3 embodiment 6 and compressive strength
The strong gel of this polyacrylamide has that intensity is large, good springiness, good toughness, adhesivity is good, compressive strength is high, to features such as gas tightness are good.Therefore, in drilling well, completion, well workover process, can play good kill-job and sealing function, well control fluid and reservoir effectively can be isolated, effectively stop top well control fluid to enter reservoir, also can stop the gas effusion pit shaft in reservoir simultaneously.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Within if of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. the strong gel of polyacrylamide for kill-job, is characterized in that, following component and content, consists of:
Base fluid: to prepare the total solution quality of the strong gel of polyacrylamide for kill-job of formation, 1-6% polyacrylamide, the agent of 2-8% structural reinforcing, the anti-dewatering agent of 0.4-8%, 0.2-4% antioxidant, surplus is water;
Linking agent: the massfraction in linking agent with respect to base fluid, linking agent accounts for 0.2-10%.
2. the strong gel of polyacrylamide for kill-job according to claim 1, is characterized in that: the viscosity of the strong gel of described polyacrylamide is greater than 100000 mPa s(1.5s
-1, 100 ℃), compressive strength reaches 0.4-1.7MPa/10m.
3. the strong gel of polyacrylamide for kill-job according to claim 1 and 2, is characterized in that: described polyacrylamide is one or more mixtures that form in any proportion in nonionic, positively charged ion, negatively charged ion, amphoteric polyacrylamide.
4. the strong gel of polyacrylamide for kill-job according to claim 3, is characterized in that: the molecular weight of described polyacrylamide is between 1,000,000-1,200 ten thousand.
5. according to the strong gel of polyacrylamide for kill-job described in claim 1,2 or 4, it is characterized in that: described structural reinforcing agent is one or more mixtures that form in any proportion in calcium carbonate, Z 250, aluminum oxide.
6. the strong gel of polyacrylamide for kill-job according to claim 5, is characterized in that: described anti-dewatering agent is one or more mixtures that form in any proportion in carboxymethyl cellulose, Natvosol, hydroxypropylcellulose.
7. according to the strong gel of polyacrylamide for kill-job described in claim 1,2,4 or 6, it is characterized in that: described linking agent is one or more mixtures that form in any proportion in resol, Tiorco 677.
8. the strong gel of polyacrylamide for kill-job according to claim 7, is characterized in that: described antioxidant is one or more mixtures that form in any proportion in S-WAT, sodium bisulfite.
9. the preparation method of the strong gel of polyacrylamide for a kind of kill-job according to claim 1, it is characterized in that: at rotating speed, be under the stirring velocity of turn/min of 350-450, in water, add successively polyacrylamide, antioxidant, anti-dewatering agent and structural reinforcing agent, after fully dissolving, add linking agent, plastic at 40-120 ℃.
10. the preparation method of the strong gel of polyacrylamide for a kind of kill-job according to claim 9, is characterized in that: described in add after linking agent, cross-linking reaction time is 4-48 hour.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178098A (en) * | 2014-08-01 | 2014-12-03 | 克拉玛依市正诚有限公司 | High-strength gel profile control and plugging agent as well as preparation method and application method thereof |
| CN104479654A (en) * | 2014-12-27 | 2015-04-01 | 陕西科技大学 | Compounded type cationic polyacrylamide profile control agent and preparation method thereof |
| CN105273699A (en) * | 2014-12-28 | 2016-01-27 | 新疆科力新技术发展有限公司 | High-temperature high-mineralization oil field gel formula system |
| CN106566491A (en) * | 2016-11-04 | 2017-04-19 | 中国石油大学(北京) | Starch/nanometer SiO2 composite gel, and preparation method and application thereof |
| CN106566488A (en) * | 2016-11-04 | 2017-04-19 | 中国石油大学(北京) | Polymer gel for well killing and preparing method and application of polymer gel |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090286698A1 (en) * | 2004-12-30 | 2009-11-19 | Sun Drilling Products Corporation | Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| US20110272142A1 (en) * | 2009-08-25 | 2011-11-10 | Halliburton Law Department | Radiation-Induced Thickening and Radiation-Induced Triggering for Set-On-Command Sealant Compositions and Methods of Use |
| CN102276771A (en) * | 2010-06-11 | 2011-12-14 | 长江大学 | Underground gel slug and preparation method thereof |
-
2013
- 2013-09-26 CN CN201310444512.2A patent/CN103525385B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090286698A1 (en) * | 2004-12-30 | 2009-11-19 | Sun Drilling Products Corporation | Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| US20110272142A1 (en) * | 2009-08-25 | 2011-11-10 | Halliburton Law Department | Radiation-Induced Thickening and Radiation-Induced Triggering for Set-On-Command Sealant Compositions and Methods of Use |
| CN102276771A (en) * | 2010-06-11 | 2011-12-14 | 长江大学 | Underground gel slug and preparation method thereof |
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| CN104479654A (en) * | 2014-12-27 | 2015-04-01 | 陕西科技大学 | Compounded type cationic polyacrylamide profile control agent and preparation method thereof |
| CN105273699A (en) * | 2014-12-28 | 2016-01-27 | 新疆科力新技术发展有限公司 | High-temperature high-mineralization oil field gel formula system |
| CN106566491A (en) * | 2016-11-04 | 2017-04-19 | 中国石油大学(北京) | Starch/nanometer SiO2 composite gel, and preparation method and application thereof |
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| CN106566488B (en) * | 2016-11-04 | 2019-07-26 | 中国石油大学(北京) | Kill-job polymer gel and the preparation method and application thereof |
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