CN106753303B - A kind of gas well oil resistant slow-release solid foaming water discharge agent, preparation method and application - Google Patents
A kind of gas well oil resistant slow-release solid foaming water discharge agent, preparation method and application Download PDFInfo
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- CN106753303B CN106753303B CN201611079329.7A CN201611079329A CN106753303B CN 106753303 B CN106753303 B CN 106753303B CN 201611079329 A CN201611079329 A CN 201611079329A CN 106753303 B CN106753303 B CN 106753303B
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
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- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
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Abstract
The invention discloses a kind of gas well oil resistant slow-release solid foaming water discharge agent, preparation method and applications, purpose is to solve existing solid foam gully solution rate very fast, easily cause foam discharging agent local concentration higher, the problem that causes medicament to waste, and can not preferably be applied under the high condensate of gas field output water, high salinity, high-temperature conditions down-hole.Gas well of the invention oil resistant slow-release solid foaming water discharge agent, under the conditions of 90 DEG C of water floodings, dissolution time is more than 72 hours, and medicament validity period is long；Condensate oil ability >=50%, temperature resistance ability >=120 DEG C, anti-salinity ability reach 250000ppm.Foaming water discharge agent foamability >=the 140mm has the advantages that the foam stabilizing time is long, and can be with the medicaments compatibility such as methanol, corrosion inhibiter, antisludging agent.Meanwhile preparation process of the invention is easy to operate, not can cause environmental pollution, product is not chemically reacted with air-liquid component, does not corrode equipment and pipeline, can solve the outstanding problem of current gas well liquid loading, is suitable for all kinds of water-producing gas wells.
Description
Technical field
The present invention relates to oilfield, specially a kind of gas well oil resistant slow-release solid foaming water discharge agent, preparation method
And application.
Background technique
In the middle and later periods of natural gas well exploitation, it has been maintenance gas well stable yields, the important means of volume increase that gas well, which effectively drains,.?
In numerous aqueous gas well drainage technology measures, since foaming water discharge has the advantages that equipment is simple, easy for construction, at low cost,
So that drainage measures the answering in gas field such as foaming water discharge is drained considerably beyond ultrasonic atomizatio draining, speed column, gaslift draining
Use frequency.Currently, foaming water discharge has become the General Maintenance measure of gas field water pumping gas production.
Common foaming water discharge agent has solid and two kinds of forms of liquid.For the limitation of service shaft natural environment, filing provision limit
The considerations of system and reduction construction cost, on dosing method, most aqueous gas well water drainage-gas recovery technologies use manual or automaticization
The mode of equipment dispensing solid foam water discharge agent.
However, there is following both sides disadvantage using the filling of Conventional solid foaming water discharge agent: 1) existing Conventional solid steeps
Foam water discharge agent is in pit shaft when in dropping process and shaft bottom chance water flooding, and solution rate is very fast, Yi Yinqi foam discharging agent localized rich
It spends higher, medicament is caused to waste；2) during gas well liquid loading, open and close well can largely influence to produce, while also add
Big operation risk.As part gas well is containing high condensate, high salinity, the water flooding output of high temperature, to foaming properties meeting
Larger defoaming effect is generated, gas well foaming water discharge agent is seriously affected and takes fluidity energy, reduce having for Conventional solid foaming water discharge agent
Effect property.
Therefore, it is necessary to invent one kind both slow, features of medicament validity period length with dissolution release after meeting water, and have anti-
The solid foam water discharge agent of high condensate, anti-high salinity, feature resistant to high temperatures reduces and adds to extend the live adding of agent period
Operations number is infused, labor intensity is reduced, saves manpower financial capacity, adapts to the high condensate of gas field output water, high salinity, high-temperature well
Water pumping gas production under the conditions of lower.
Summary of the invention
Goal of the invention of the invention is:, Yi Yinqi foam discharging agent very fast for existing solid foam gully solution rate
Local concentration is higher, and medicament is caused to waste, and can not preferably be applied to the high condensate of gas field output water, high salinity, high-temperature
Problem under conditions down-hole provides a kind of gas well oil resistant slow-release solid foaming water discharge agent, preparation method and application.The present invention
Gas well oil resistant slow-release solid foaming water discharge agent, under the conditions of 90 DEG C of water floodings, dissolution time is more than 72 hours, and medicament is effective
Phase is long；Condensate oil ability >=50%, temperature resistance ability >=120 DEG C, anti-salinity ability reach 250000ppm.The foaming water discharge agent
Foamability >=140mm has the advantages that the foam stabilizing time is long, and can be with the medicaments compatibility such as methanol, corrosion inhibiter, antisludging agent.Meanwhile
Preparation process of the invention is easy to operate, not can cause environmental pollution, and product is not chemically reacted with air-liquid component, no
Corrode equipment and pipeline, can solve the outstanding problem of current gas well liquid loading, is suitable for all kinds of water-producing gas wells.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of gas well oil resistant slow-release solid foaming water discharge agent, condensate oil ability >=50%, temperature resistance ability >=120
DEG C, anti-salinity ability reaches 250000ppm.
Foamability >=140mm of the water discharge agent.
Water discharge agent dissolution time in 90 DEG C of water is more than 72 hours.
Component including following mass percent: 30%~50% foaming ingredient, 10%~25% polyethylene glycol, 20%~
35% acrylic resin, 5%~15% anhydrous sodium sulphate；
The foaming ingredient is compounded using the component of following mass percent: 20%~40% fatty amide propyl hydroxyl
Sulfobetaines, 30%~40% lauroylamidopropyl betaine, 30%~40% cocoyl diethanol amine.
The aforementioned gas well preparation method of oil resistant slow-release solid foaming water discharge agent, includes the following steps:
(1) foaming ingredient is configured
Each component is weighed by following mass percent: 20%~40% fatty amide propyl hydroxy sulfo lycine, 30%~
40% lauroylamidopropyl betaine, 30%~40% cocoyl diethanol amine are uniformly mixed to get foaming ingredient；
(2) water discharge agent is configured
Each component: 30%~50% foaming ingredient, 10%~25% polyethylene glycol, 20% is weighed by following mass percent
Weighed component is uniformly mixed to get product by~35% acrylic resin, 5%~15% anhydrous sodium sulphate.
Application of the foregoing foams water discharge agent in water-producing gas well production.
For foregoing problems, the present invention provide a kind of gas well oil resistant slow-release solid foaming water discharge agent, preparation method and
Using.The solid foam water discharge agent is by fatty amide propyl hydroxy sulfo lycine, lauroylamidopropyl betaine, cocoyl diethyl
Hydramine, polyethylene glycol, acrylic resin, anhydrous sodium sulphate are compounded through hybrid reaction.
Wherein, during polymerization is with compounding, first by fatty amide propyl hydroxy sulfo lycine, dodecanamide propyl
Glycine betaine, cocoyl diethanol amine are sufficiently mixed (mass percent are as follows: 40%~20%:40%~30%:40%~30%),
The strong foaming ingredient of foaming water discharge agent grease resistance is made；Then, by obtained foaming ingredient and polyethylene glycol, acrylic resin,
Anhydrous sodium sulphate is compounded, through compounded formula preferred proportion are as follows: (50%~30%): (25%~10%): (35%~20%):
(15%~5%), the sum of above-mentioned each component 100%.
After measured, the gas well oil resistant slow-release solid foaming water discharge agent prepared by the present invention, under the conditions of 90 DEG C of water floodings,
Dissolution time is more than 72 hours, and medicament validity period is long；Condensate oil ability >=50%, temperature resistance ability >=120 DEG C, anti-salinity energy
Power reaches 250000ppm.Foaming water discharge agent foamability >=the 140mm has the advantages that the foam stabilizing time is long, and can be with methanol, slow
Lose the medicaments compatibilities such as agent, antisludging agent.Meanwhile preparation process of the invention is easy to operate, not can cause environmental pollution, product with
Air-liquid component does not chemically react, and does not corrode equipment and pipeline, can solve the outstanding problem of current gas well liquid loading, is suitable for
All kinds of water-producing gas wells.
For the dissolution time and the high condensate of gas well, high salinity, height increased under solid foam water discharge agent conditions down-hole
The needs of temperature output water water pumping gas production, the present invention in: polyethylene glycol, anhydrous sodium sulphate and acrylic resin as solid foam draining
Compound coating constituents, the row of slow-release solid oil resistant foam made of acrylic resin, polyethylene glycol, anhydrous sodium sulphate and blowing agent component
After aqua, the complicated duct that the skeleton that acrylic resin and polyethylene glycol are formed has aperture superfine, in downhole formation
Under the conditions of water, blowing agent component dissolves and passes through the channel in superfine aperture present in skeleton, slowly discharges to external diffusion, control
System and the rate of release for adjusting blowing agent component, can be improved the medicament dissolution time in this way, extend medicament validity period, solve solid
The problem of foaming water discharge agent dissolution is very fast, Yi Yinqi foam discharging agent local concentration is higher, and medicament is caused to waste.Meanwhile to improve bubble
The stability of foam reduces High condensate content, high salinity, hot conditions and acts on the defoaming of foam, and the present invention is using foaming
Property and the excellent fatty amide propyl hydroxy sulfo lycine of thickening property, lauroylamidopropyl betaine, efficient foam stability cocoyl
Diethanol amine is that raw material are compounded, and the compounding of three kinds of surfactants can mutually enhance some surface active property to each other,
The stability of mixed liquor foaming capacity and foam is improved, while playing the role of emulsifying condensate, enhances the condensate oil of product
Ability.In the present invention, first with fatty amide propyl hydroxy sulfo lycine, lauroylamidopropyl betaine, cocoyl diethanol
Amine compounds to form foaming ingredient, and the foaming ingredient is recycled to prepare gas well of the invention oil resistant slow-release solid foaming water discharge
Agent.
Through actual verification, foaming water discharge agent of the invention, which has, slowly to react under downhole condition with water flooding, dissolves
Time is long, and medicament validity period is long, meanwhile, in containing high condensate, high temperature, the high salinity natural gas well, not only fast with blistering,
The performances such as the foam stabilizing time is long, fluid-carrying capability is strong, and have the characteristics that nontoxic, degradable, environmentally friendly.In addition, preparation of the invention
Technological operation is simple, and product is nontoxic, degradable, not can cause environmental pollution, and raw material are also easy to obtain, and is convenient for field size
Change application.
Preparation process of the present invention is easy to operate, and product is nontoxic, degradable, not can cause environmental pollution.The foaming water discharge
Slowly react under agent downhole condition with water flooding, medicament validity period is long, while have anti-high condensate, anti-high salinity,
Feature resistant to high temperatures, at the same it is good with the medicaments compatibility such as methanol, corrosion inhibiter, antisludging agent, it can solve the protrusion of current gas well liquid loading
Problem is suitable for all kinds of water-producing gas wells, has fabulous application prospect.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
The present invention relates to reagent combination and synthesis technology, be able to produce a kind of anti-high condensate of gas well, anti-high mine
Change degree, slow-release solid foaming water discharge agent resistant to high temperatures.Now illustrate the preparation method of the foaming water discharge agent, specific step is as follows.
1, prepare
1) raw material prepare.
2) it checks in reaction kettle whether there is foreign matter, if any foreign matter, removes in time.
3) start blender, whether observe its work normal, and it is such as abnormal, accordingly overhauled.
4) weighing apparatus is calibrated:
A) it returns to zero.
B) 500g standard test weight calibration instrument is used.
2, it produces:
1) size of visual response kettle, according to the ratio by fatty amide propyl hydroxy sulfo lycine, lauroylamidopropyl betaine,
Cocoyl diethanol amine is sufficiently mixed (mass percent are as follows: 40%~20%:40%~30%:40%~30%)；At 40 DEG C
Under, after stirring 30 minutes, blowing agent component SJ-2 is made.
2) size of visual response kettle, at 40 DEG C, according to the ratio by foaming ingredient SJ-2 and polyethylene glycol, acrylic resin,
Anhydrous sodium sulphate is compounded, through compounded formula preferred proportion are as follows: (50%~30%): (25%~10%): (35%~20%):
(15%~5%), the sum of above-mentioned each component 100%.
3) after material is cooling, plastotype process is carried out to get slow-release solid oil resistant foaming water discharge agent.
3, finished product:
After plasticity packaging, material is put into warehouse for finished product, packed products.
After measured, the new sustained release solid oil resistant foaming water discharge agent obtained by the present invention, in 90 DEG C of water, dissolution time is super
Spend 72 hours；Condensate oil ability >=50%；Temperature resistance ability >=120 DEG C, anti-high salinity reach 250000ppm.The foaming water discharge
Agent foamability >=140mm, with the medicaments compatibility such as methanol, corrosion inhibiter, antisludging agent, white in appearance stick solid, free from extraneous odour.It should
The performance indicator of product is as shown in table 1 below.
1 slow-release solid oil resistant foaming water discharge agent performance indicator of table
Embodiment 1
(1) foaming ingredient is configured
Each component is weighed by following mass ratio: 20kg fatty amide propyl hydroxy sulfo lycine, 40kg dodecanamide propyl
Glycine betaine, 40kg cocoyl diethanol amine stir 30 minutes, and component is uniformly mixed to get foaming ingredient.
(2) water discharge agent is configured
Each component is weighed by following mass ratio: 30kg foaming ingredient, 20kg polyethylene glycol, 35kg acrylic resin, 15kg
Weighed component is uniformly mixed to get product by anhydrous sodium sulphate.
After measured, for product manufactured in the present embodiment in 90 DEG C of water, dissolution time is more than 72 hours；Condensate oil ability is
65%；Temperature resistance ability >=120 DEG C, anti-high salinity reach 250000ppm；The foaming water discharge agent foamability is 162mm.
Embodiment 2
(1) foaming ingredient is configured
Each component is weighed by following mass ratio: 35kg fatty amide propyl hydroxy sulfo lycine, 35kg dodecanamide propyl
Glycine betaine, 30kg cocoyl diethanol amine stir 45 minutes, and component is uniformly mixed to get foaming ingredient.
(2) water discharge agent is configured
Each component is weighed by following mass ratio: 40kg foaming ingredient, 15kg polyethylene glycol, 30kg acrylic resin, 15kg
Weighed component is uniformly mixed to get product by anhydrous sodium sulphate.
After measured, for product manufactured in the present embodiment in 90 DEG C of water, dissolution time is more than 72 hours；Condensate oil ability is
58%；Temperature resistance ability >=120 DEG C, anti-high salinity reach 250000ppm；The foaming water discharge agent foamability is 155mm.
Embodiment 3
(1) foaming ingredient is configured
Each component is weighed by following mass ratio: 25kg fatty amide propyl hydroxy sulfo lycine, 35kg dodecanamide propyl
Glycine betaine, 40kg cocoyl diethanol amine stir 30 minutes, and component is uniformly mixed to get foaming ingredient.
(2) water discharge agent is configured
Each component is weighed by following mass ratio: 45kg foaming ingredient, 20kg polyethylene glycol, 25kg acrylic resin, 10kg
Weighed component is uniformly mixed to get product by anhydrous sodium sulphate.
After measured, for product manufactured in the present embodiment in 90 DEG C of water, dissolution time is more than 72 hours；Condensate oil ability is
62%；Temperature resistance ability >=120 DEG C, anti-high salinity reach 250000ppm；The foaming water discharge agent foamability is 158mm.
Embodiment 4
(1) foaming ingredient is configured
Each component is weighed by following mass ratio: 30kg fatty amide propyl hydroxy sulfo lycine, 35kg dodecanamide propyl
Glycine betaine, 35kg cocoyl diethanol amine stir 50 minutes, and component is uniformly mixed to get foaming ingredient.
(2) water discharge agent is configured
Each component is weighed by following mass ratio: 40kg foaming ingredient, 25kg polyethylene glycol, 30kg acrylic resin, 5kg member
Weighed component is uniformly mixed to get product by bright powder.
After measured, for product manufactured in the present embodiment in 90 DEG C of water, dissolution time is more than 72 hours；Condensate oil ability is
68%；Temperature resistance ability >=120 DEG C, anti-high salinity reach 250000ppm；The foaming water discharge agent foamability is 165mm.
Embodiment 5
(1) foaming ingredient is configured
Each component is weighed by following mass ratio: 35kg fatty amide propyl hydroxy sulfo lycine, 30kg dodecanamide propyl
Glycine betaine, 35kg cocoyl diethanol amine stir 40 minutes, and component is uniformly mixed to get foaming ingredient.
(2) water discharge agent is configured
Each component is weighed by following mass ratio: 40kg foaming ingredient, 25kg polyethylene glycol, 27kg acrylic resin, 8kg member
Weighed component is uniformly mixed to get product by bright powder.
After measured, for product manufactured in the present embodiment in 90 DEG C of water, dissolution time is more than 72 hours；Condensate oil ability is
56%；Temperature resistance ability >=120 DEG C, anti-high salinity reach 250000ppm；The foaming water discharge agent foamability is 152mm.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (2)
1. a kind of gas well oil resistant slow-release solid foaming water discharge agent, it is characterised in that: the component including following mass percent:
30%~50% foaming ingredient, 10%~25% polyethylene glycol, 20%~35% acrylic resin, 5%~15% anhydrous sodium sulphate；
The foaming ingredient is compounded using the component of following mass percent: 20%~40% fatty amide propyl hydroxyl sulfo group sweet tea
Dish alkali, 30%~40% lauroylamidopropyl betaine, 30%~40% cocoyl diethanol amine；
Preparation method following steps: (1) foaming ingredient is configured
Each component: 20%~40% fatty amide propyl hydroxy sulfo lycine, 30%~40% laurel is weighed by following mass percent
Amido propyl betaine, 30%~40% cocoyl diethanol amine are uniformly mixed to get foaming ingredient；
(2) water discharge agent is configured
Each component: 30%~50% foaming ingredient, 10%~25% polyethylene glycol, 20%~35% propylene is weighed by following mass percent
Weighed component is uniformly mixed to get product by acid resin, 5%~15% anhydrous sodium sulphate.
2. application of the foaming water discharge agent described in preceding claims 1 in water-producing gas well production.
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| CN107338038B (en) * | 2017-08-07 | 2022-07-26 | 中国石油化工股份有限公司 | Anti-condensation oil and salt-resistant foam scrubbing agent and preparation method thereof |
| CN108148567A (en) * | 2018-02-11 | 2018-06-12 | 欧阳冬 | A kind of multi-functional foam discharging agent and its application |
| CN111088015A (en) * | 2018-10-23 | 2020-05-01 | 中国石油化工股份有限公司 | Salt-resistant oil-resistant solid foam drainage agent composition and preparation method and application thereof |
| CN110003875B (en) * | 2019-03-19 | 2021-01-29 | 中国石油天然气股份有限公司 | Slow-release liquid-carrying sand-carrying foam discharging agent and preparation method thereof |
| CN114427431A (en) * | 2020-09-08 | 2022-05-03 | 中国石油化工股份有限公司 | Liquid-carrying critical flow control method for low-pressure low-yield gas well |
| CN114836189A (en) * | 2021-02-01 | 2022-08-02 | 中国石油天然气股份有限公司 | Foam volleyball for gas well and preparation method thereof |
| CN113006753B (en) * | 2021-05-08 | 2023-04-07 | 中国石油天然气股份有限公司 | Method and equipment for filling foam drainage agent and foam drainage ball for equipment |
| CN114437697A (en) * | 2022-01-26 | 2022-05-06 | 陕西日新石油化工有限公司 | Solid foam drainage agent with corrosion inhibition function and preparation method thereof |
| CN116355607B (en) * | 2023-03-22 | 2024-03-19 | 陕西延长石油（集团）有限责任公司 | Delayed composite foaming agent for fracturing and preparation method and construction method thereof |
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