CN106433583A - Foam drilling fluid and preparation method thereof - Google Patents
Foam drilling fluid and preparation method thereof Download PDFInfo
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- CN106433583A CN106433583A CN201610821642.7A CN201610821642A CN106433583A CN 106433583 A CN106433583 A CN 106433583A CN 201610821642 A CN201610821642 A CN 201610821642A CN 106433583 A CN106433583 A CN 106433583A
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- Prior art keywords
- foaming agent
- drilling fluid
- foam drilling
- foam
- foaming
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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
- C09K8/02—Well-drilling compositions
- C09K8/38—Gaseous or foamed well-drilling compositions
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/032—Inorganic additives
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- 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
- C09K2208/08—Fiber-containing well treatment fluids
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
A foam drilling fluid is prepared from, in percentage by mass, 2%-4% of a first foaming agent, 1%-2% of a second foaming agent, 1%-3% of inorganic fibers and the balance of water, wherein dosage of the first foaming agent is the double of that of the second foaming agent. Under the normal-temperature and normal-pressure conditions, the inorganic fibers are dispersed in deionized water for prehydration treatment for 8-12 h, then the first foaming agent and the second foaming agent are added and evenly stirred at 60-80 DEG C, the mixture is foamed at the rotating speed of 5,000-8,000 rpm for 3-5 min, and the foam drilling fluid is prepared. The foam drilling fluid has good foaming capacity, high high-temperature-resistant and anti-pollution capacity, good dynamic yield point, good yield point and plastic viscosity ratio, good suspension property, higher inhibitive ability and proper water loss, can maintain the higher rate of penetration and water and rock carrying capacity in the drilling process and effectively solves the complex problems of wellbore instability, tool sticking, reservoir pollution and the like.
Description
Technical field
The present invention relates to a kind of high temperature resistance, resistant to pollution foam drilling fluid and preparation method thereof, belong to petroleum drilling fluid skill
Art field.
Background technology
Drilling fluid is for one of equilibrium strata pressure, indispensable material of the safe and smooth drilling of guarantee in drilling process.Right
In the deep-well oil-gas reservoir that mud shale content is high, formation water salinity is high, it is preferred to use oil base drilling fluid, but oil base drilling fluid pair
Environmental pollution is serious, easily catch fire, high cost.Conventional water-base drilling fluid density is difficult to control in 1.0g/cm3Hereinafter, inhibition
Difference, when running into high saliferous deep-well stratum, performance is susceptible to change, and leads to hole instability, causes reservoir damage.Foam drilling
Low, the strong inhibition capability of liquid-tight degree, has preferable seal-off effect, little to reservoir damage, but implementing process is complicated and relatively costly.At present
The domestic research to foam drilling fluid, also in the starting stage, generally remains that foam system is unstable, and heat-resisting property is relatively
The problems such as difference, contamination resistance are weak.Therefore, developing a kind of foam drilling fluid and meeting the growth requirement of drilling fluid has become and compels to be essential
Will.
Chinese patent literature CN102796498A discloses a kind of foam drilling fluid, and including following component, each component presses matter
Amount percentages：Foaming agent is 0.5～2.0%, foam stabilizer is 0.2～0.5%, shale inhibitor is 2～10%, mud shale
Stabilizer is 0.2～1.0%, balance of water；And the pH value of foam drilling fluid is 8～10.But, in this system and do not contain fibre
Dimension material and foam volume is less, half-life is short；
CN103194191A discloses a kind of foam drilling fluid based on nanometer silicon dioxide material, at least includes with the following group
Point, the mass percent of each component is：Foaming agent 0.1～0.3%, foam stabilizer 0.1～0.3%, nano material 0.05～
0.125%, balance of water, the nanometer silicon dioxide particle that described nano material is 10～20nm for particle diameter.But, this foam
Drilling fluid foam volume is little.
Content of the invention
The present invention is directed to the deficiency that existing foam drilling fluid technology exists, there is provided a kind of have excellent frothing capacity,
The foam drilling fluid of stronger high temperature resistance, contamination resistance and mud shale rejection, can meet stratum scale drilling debris and take
Band and the requirement of wellbore stability.
The foam drilling fluid of the present invention, including the first foaming agent, the second foaming agent, inorfil and water, the first foaming agent
Mass percent be 2-4%, the mass percent of the second foaming agent is 1-2%, and the first foaming agent consumption is the second foaming
Agent consumption twice, the mass percent of inorfil is 1-3%, balance of water.
Described first foaming agent is sodium lauryl sulphate, alkylpolyoxyethylene sodium sulfate, dimethyl
One of base glycine betaine and polyoxyethylene lauryl ether carboxylic acid sodium or arbitrary proportion compounding.
Described second foaming agent is dodecylbenzene sodium sulfonate, Dodecyl trimethyl ammonium chloride, cetyl trimethyl
One of ammonium bromide and DDA or arbitrary proportion compounding.
Described inorfil is meerschaum or Paligorskite.
The preparation method of above-mentioned foam drilling fluid is：
Under normal temperature and pressure conditionses, inorfil is scattered in deionized water and carries out prehydration process 8-12 hour, (pre- water
Changing process is exactly that inorfil is dissolved in water, allows its fibre structure more to unfold), then add the first foaming agent and second
Infusion, 60 DEG C -80 DEG C stir, and in 5000-8000 rev/min of rotating speed foaming 3-5 minute under room temperature, obtain final product foam drilling
Liquid.
Compared with prior art, surfactant needed for the foam drilling fluid in the present invention and inorfil consumption are few, institute
State inorfil and can be effectively increased the foam volume of foam drilling fluid and the half-life extending foam；Based on inorfil structure
The foam drilling fluid viscosity of material and shear force parameter are higher, and suspendability is good, have stronger inhibition, temperature resistance, pollution capacity
By force, earth cuttings can be met completely and carry requirement with wellbore stability, expand the range of application of foam drilling fluid.And grasp
Make simple, largely reduce cost.
The foam drilling fluid of the present invention not only has good foaming capacity, and high temperature resistance, contamination resistance are strong, also have very
Good yield value and ratio of dynamic shear force/yield value to plastic viscosity, suspendability is good, and has stronger inhibition and suitable dehydration, is favorably improved drilling well
During maintain higher rate of penetration and take rock and take outlet capacity, efficiently solve borehole well instability and bit freezing and reservoir pollution etc.
Challenge, thus realize safety, rapid drilling.
Brief description
Fig. 1 is the foaming figure of the foam drilling fluid of embodiment 1 preparation.
Specific embodiment
Embodiment 1
Under normal temperature and pressure conditionses, 3g meerschaum is scattered in 142.5g deionized water and carries out prehydration process 10 hours
(it is exactly that meerschaum is dissolved in water that prehydration is processed, and allows its fibre structure more to unfold, needs the regular hour), then adds
3g sodium lauryl sulphate and 1.5g dodecylbenzene sodium sulfonate.Wherein sodium lauryl sulphate (the first foaming agent), dodecane
Base benzene sulfonic acid sodium salt (the second foaming agent) is respectively 2%, 1%, 2% with the mass percent of meerschaum (inorfil).60 DEG C are stirred
Mix uniformly, bubbled 5 minutes in 5000 revs/min using blender under room temperature, obtain final product foam drilling fluid, foaming volume is 880ml,
Half foam life period is 60 minutes.
The foaming effect of foam drilling fluid manufactured in the present embodiment is as shown in Figure 1.
Embodiment 2
Under normal temperature and pressure conditionses, 4.5g meerschaum is scattered in 138.75g deionized water carry out prehydration process 12 little
When, then add 4.5g sodium lauryl sulphate and 2.25g dodecylbenzene sodium sulfonate, wherein sodium lauryl sulphate (
One foaming agent), dodecylbenzene sodium sulfonate (the second foaming agent) is respectively with the mass percent of meerschaum (inorfil)
3%th, 1.5%, 3%.80 DEG C stir, and bubbled 4.5 minutes in 7500 revs/min using blender, obtain final product foam under room temperature
Drilling fluid, foaming volume is 860ml, and half foam life period is 65 minutes.
Embodiment 3
Under normal temperature and pressure conditionses, 1.5g meerschaum is scattered in 139.5g deionized water and carries out prehydration process 8 hours,
Then 6g sodium lauryl sulphate and 3g dodecylbenzene sodium sulfonate, wherein sodium lauryl sulphate (the first foaming are added
Agent), the mass percent of dodecylbenzene sodium sulfonate (the second foaming agent) and meerschaum (inorfil) be respectively 4%, 2%,
1%.60 DEG C stir, and bubbled 5 minutes in 5000 revs/min using blender, obtain final product foam drilling fluid under room temperature, play foam
Amass as 960ml, half foam life period is 50 minutes.
Embodiment 4
Under normal temperature and pressure conditionses, 3g meerschaum is scattered in 142.5g deionized water and carries out prehydration process 10 hours,
Then 3g sodium lauryl sulphate and 1.5g cetyl trimethylammonium bromide, wherein sodium lauryl sulphate (first are added
Foaming agent), cetyl trimethylammonium bromide (the second foaming agent) is respectively with the mass percent of meerschaum (inorfil)
2%th, 1%, 2%.70 DEG C stir, and bubbled 3 minutes in 8000 revs/min using blender, obtain final product foam drilling under room temperature
Liquid, foaming volume is 850ml, and half foam life period is 58 minutes.
Embodiment 5
Under normal temperature and pressure conditionses, 3g meerschaum is scattered in 142.5g deionized water and carries out prehydration process 10 hours,
Then 3g polyoxyethylene lauryl ether carboxylic acid sodium and 1.5g Dodecyl trimethyl ammonium chloride, wherein lauryl alcohol polyoxy second are added
Alkene ether carboxylic acid sodium (the first foaming agent), Dodecyl trimethyl ammonium chloride (the second foaming agent) and the matter of meerschaum (inorfil)
Amount percentage ratio is respectively 2%, 1%, 2%.60 DEG C stir, and are bubbled 4.5 points in 6000 revs/min using blender under room temperature
Clock, obtains final product foam drilling fluid, and foaming volume is 820ml, and half foam life period is 80 minutes.
Embodiment 6
Under normal temperature and pressure conditionses, 3g meerschaum is scattered in 142.5g deionized water and carries out prehydration process 10 hours,
Then 3g alkylpolyoxyethylene sodium sulfate and 1.5g Dodecyl trimethyl ammonium chloride are added, wherein dodecyl gathers
Oxygen ethylene ether sodium sulfate (the first foaming agent), Dodecyl trimethyl ammonium chloride (the second foaming agent) and meerschaum (inorfil)
Mass percent be respectively 2%, 1%, 2%.65 DEG C stir, using blender in 5000 revs/min of foamings 5 under room temperature
Minute, obtain final product foam drilling fluid, foaming volume is 840ml, half foam life period is 70 minutes.
Embodiment 7
Under normal temperature and pressure conditionses, 3g meerschaum is scattered in 142.5g deionized water and carries out prehydration process 9 hours, so
After add 3g dodecyldimethylammonium hydroxide inner salt and 1.5g dodecylbenzene sodium sulfonate, wherein dodecyldimethylammonium hydroxide inner salt
(the first foaming agent), dodecylbenzene sodium sulfonate (the second foaming agent) and the mass percent of meerschaum (inorfil) are respectively
2%th, 1%, 2%.60 DEG C stir, and bubbled 4 minutes in 7000 revs/min using blender, obtain final product foam drilling under room temperature
Liquid, foaming volume is 800ml, and half foam life period is 70 minutes.
Embodiment 8
Under normal temperature and pressure conditionses, 4.5g Paligorskite is scattered in 141g deionized water and carries out prehydration process 12 hours,
Then 1.5g sodium lauryl sulphate, 1.5g alkylpolyoxyethylene sodium sulfate, 0.75g trimethyl are added
Ammonium bromide and 0.75g DDA, (sodium lauryl sulphate and dodecyl gather the wherein first foaming agent
Oxygen ethylene ether sodium sulfate), the second foaming agent (Dodecyl trimethyl ammonium chloride and DDA) with sea
The mass percent of afrodite is respectively 2%, 1%, 3%.80 DEG C stir, using blender in 5000 revs/min under room temperature
Bubble 5 minutes, obtain final product foam drilling fluid, foaming volume is 850ml, half foam life period is 70 minutes.
Embodiment 9
Under normal temperature and pressure conditionses, 1.5g Paligorskite is scattered in 139.5g deionized water and carries out prehydration process 8 hours,
Then 3.2g dodecyldimethylammonium hydroxide inner salt, 2.8g polyoxyethylene lauryl ether carboxylic acid sodium, 1.8g detergent alkylate are added
Sodium sulfonate and 1.2g DDA, the wherein first foaming agent (dodecyldimethylammonium hydroxide inner salt and Laurel
Polyoxyethylenated alcohol carboxylic acid sodium), the second foaming agent (dodecylbenzene sodium sulfonate and DDA) with sea
The mass percent of afrodite is respectively 4%, 2%, 1%.70 DEG C stir, using blender in 6500 revs/min under room temperature
Bubble 4 minutes, obtain final product foam drilling fluid, foaming volume is 950ml, half foam life period is 65 minutes.
Laboratory experiment is carried out to embodiment 1,4,5,8,9 gained foam drilling fluid, its result is as follows：
1. foam drilling fluid antifouling property
The each 150mL of Example 1,4,5,8,9 sample, (10g mass concentration is 10% to add different pollutant respectively
NaCl, 10mL kerosene), after mix homogeneously, measure foam volume and the half foam life period of drilling fluid using said method, commented with this
The antifouling property of valency foam drilling fluid, concrete outcome is as follows《Foam drilling fluid performance evaluation table》Shown.
2. the high temperature resistant property of foam drilling fluid
Using roller heating stove, by above-described embodiment 1,4,5,8,9 sample after 120 DEG C of heat rollings 16 hours, take 150mL
Foam drilling fluid base fluid, measures foam volume and the half foam life period of drilling fluid, evaluates the high temperature resistance of foam drilling fluid with this
Energy；Concrete outcome is as follows《Foam drilling fluid performance evaluation table》Shown.
Foam drilling fluid performance evaluation table
Claims (5)
1. a kind of foam drilling fluid, is characterized in that：Including the first foaming agent, the second foaming agent, inorfil and water, the first foaming
The mass percent of agent is 2-4%, and the mass percent of the second foaming agent is 1-2%, and the first foaming agent consumption is second
Infusion consumption twice, the mass percent of inorfil is 1-3%, balance of water.
2. foam drilling fluid according to claim 1, is characterized in that：Described first foaming agent be sodium lauryl sulphate,
One of alkylpolyoxyethylene sodium sulfate, dodecyldimethylammonium hydroxide inner salt and polyoxyethylene lauryl ether carboxylic acid sodium
Or arbitrary proportion is compounding.
3. foam drilling fluid according to claim 1, is characterized in that：Described second foaming agent is DBSA
One of sodium, Dodecyl trimethyl ammonium chloride, cetyl trimethylammonium bromide and DDA
Or arbitrary proportion is compounding.
4. foam drilling fluid according to claim 1, is characterized in that：Described inorfil is meerschaum or Paligorskite.
5. a kind of preparation method of foam drilling fluid described in claim 1, is characterized in that：
Under normal temperature and pressure conditionses, inorfil is scattered in deionized water and carries out prehydration process 8-12 hour, then add again
Enter the first foaming agent and the second foaming agent, 60 DEG C -80 DEG C stir, divided with 5000-8000 rev/min of rotating speed foaming 3-5
Clock, obtains final product foam drilling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610821642.7A CN106433583A (en) | 2016-09-13 | 2016-09-13 | Foam drilling fluid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610821642.7A CN106433583A (en) | 2016-09-13 | 2016-09-13 | Foam drilling fluid and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084987A (en) * | 2017-12-25 | 2018-05-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of natural gas well turnaround fracture microvesicle temporarily blocks up liquid filler and its application |
| CN108165248A (en) * | 2018-03-05 | 2018-06-15 | 中国石油大学(华东) | Based on stable strengthening foam system of graphite particle collaboration and preparation method thereof |
| CN108997994A (en) * | 2018-09-05 | 2018-12-14 | 石家庄长宏能源科技有限公司 | A kind of oil field anti-channeling displacement of reservoir oil foaming agent and preparation method thereof |
| CN109294540A (en) * | 2018-09-19 | 2019-02-01 | 中国石油天然气股份有限公司 | A kind of profile control agent of oil deposit deep part and preparation method thereof of resistance to high mine degree |
| CN113403044A (en) * | 2021-06-08 | 2021-09-17 | 中石化南京化工研究院有限公司 | Micro-foam foaming system for drilling fluid |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084987A (en) * | 2017-12-25 | 2018-05-29 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of natural gas well turnaround fracture microvesicle temporarily blocks up liquid filler and its application |
| CN108165248A (en) * | 2018-03-05 | 2018-06-15 | 中国石油大学(华东) | Based on stable strengthening foam system of graphite particle collaboration and preparation method thereof |
| CN108165248B (en) * | 2018-03-05 | 2018-11-09 | 中国石油大学(华东) | Based on the strengthening foam system and preparation method thereof that graphite particle collaboration is stable |
| CN108997994A (en) * | 2018-09-05 | 2018-12-14 | 石家庄长宏能源科技有限公司 | A kind of oil field anti-channeling displacement of reservoir oil foaming agent and preparation method thereof |
| CN108997994B (en) * | 2018-09-05 | 2021-01-05 | 石家庄长宏能源科技有限公司 | Foaming agent for oil displacement and channeling prevention in oil field and preparation method thereof |
| CN109294540A (en) * | 2018-09-19 | 2019-02-01 | 中国石油天然气股份有限公司 | A kind of profile control agent of oil deposit deep part and preparation method thereof of resistance to high mine degree |
| CN109294540B (en) * | 2018-09-19 | 2021-03-09 | 中国石油天然气股份有限公司 | High-salinity-resistant profile control agent for deep oil reservoir and preparation method thereof |
| CN113403044A (en) * | 2021-06-08 | 2021-09-17 | 中石化南京化工研究院有限公司 | Micro-foam foaming system for drilling fluid |
| CN113403044B (en) * | 2021-06-08 | 2022-10-28 | 中石化南京化工研究院有限公司 | Micro-foam foaming system for drilling fluid |
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Application publication date: 20170222 |