CN108373910A - A kind of HL-FFQH environmental protection drilling fluid system and preparation method thereof - Google Patents
A kind of HL-FFQH environmental protection drilling fluid system and preparation method thereof Download PDFInfo
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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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/22—Synthetic organic compounds
- C09K8/24—Polymers
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- 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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- 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
- C09K2208/10—Nanoparticle-containing well treatment 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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Abstract
A kind of HL FFQH environmental protection drilling fluid systems and preparation method thereof, the drilling fluid system is made of following raw materials：Water, bentonite, natrium carbonicum calcinatum, environmentally friendly coating agent, environmentally friendly fluid loss additive, bionical fluid lubricant, bionical solid wall agent, environmentally friendly caving control agent, bionic nano sealing agent, environmentally friendly film forming agent, Environment-friendlydiluent diluent.Preparation method is that bentonite is added in distilled water, is stirred；Add natrium carbonicum calcinatum, it stirs and conserves, environmentally friendly coating agent, environmentally friendly fluid loss additive, bionical fluid lubricant, bionical solid wall agent, environmentally friendly caving control agent, bionic nano sealing agent, environmentally friendly film forming agent, Environment-friendlydiluent diluent are sequentially added, is stirred evenly up to the environmentally friendly drilling fluid system.The present invention can inhibit soil dispersion expansion in mud shale section, have good wave making machine, while cutting carring ability is strong, effectively cleans wellbore, avoids the generation of drilling complexity accident, improves drilling quality and efficiency.
Description
Technical field
The present invention relates to a kind of oil drilling liquid system, especially a kind of environmentally friendly drilling fluid system.The invention further relates to institute
The preparation method for the environmentally friendly drilling fluid system stated.
Background technology
As present oil and gas development is increasingly turned to shale gas and shale oil etc., the frequency in mud shale interval location in drilling process
Numerous brill chance makes mud shale that hydration swelling occur, and drilling fluid rheology deterioration, thixotropy enhancing, filter loss increase, mud cake is caused to increase
Thickness, and then lead to the generation of drilling failure.Inhibitive drilling fluid system is mostly poisonous and harmful inorganic agent composition currently on the market, right
Environment and reservoir are totally unfavorable.The optimization of drilling fluid system, the raising of performance and greenization are that guarantee is safe, quick, high-quality
Strong rejection capability environmental protection drilling fluid system is studied and is developed on the basis of drilling, solves the drilling problem in mud shale location to currently boring
Well or even energy industry have great importance.
Disclosed drilling fluid system patent application technology is asked for high inhibition and one in environmental protection currently on the market
Topic expansion research, restricted application, using effect is not good enough.
Inventor retrieves following Patents documents：CN104046340A discloses a kind of high-temperature resisting and salt-resisting high inhibition brill
Well liquid system is to contain following substance by percentage to the quality based on 100% by the quality of water is added：Bentonite slurry 2-7%, alkali
Property conditioning agent 0.1-0.3%, shale control agent 0.3%-2%, heat resisting fluid loss reducing agent A0.5-4%, heat and salinity tolerance fluid loss additive
B0.5-4% blocks anti-sloughing agent 1%-7%.CN103045198A discloses a kind of lost circulation prevention wellbore fluid that the natural gas well uses
System, the formula for the lost circulation prevention drilling fluid that this natural gas well uses is bentonite 1-5：Ammonium salt 0.1-1：Coating agent 0.1-1：Drop filter
Lose agent 0.1-1：Calcium carbonate 1-5：The water of potassium chloride 1-5 and its surplus.It is highly dense that CN105001839A discloses a kind of high temperature resistance
High inhibition drilling fluid system and preparation method are spent, density is 2.0~2.3g/cm3, it is by seawater, seawer quality 1~4%
Bentonite, the sodium carbonate of seawer quality 0.2~0.4%, the first fluid loss additive of seawer quality 0.5~3%, seawer quality 3~
15% the second fluid loss additive, the drilling fluid of seawer quality 2~18% unstressed configuration solid albino bitumen, seawer quality 5~15%
Drilling fluid solid polymerization alcohol, seawer quality 50~100% organic salt, and the inertia being calculated according to density aggravates material
It is prepared by material.CN103045194A discloses a kind of reservoir protection drilling fluid system that the natural gas well uses, and this natural gas well makes
The formula of reservoir protection drilling fluid is bentonite 1-5：Ammonium salt 0.1-1：Coating agent 0.1-1：Sulfonated gilsonite 1-5：Sulfonation is brown
Coal 1-5：Film forming agent 0.5-5：Calcium carbonate 1-5：The water of potassium chloride 1-5 and its surplus, CN104893690A disclose a kind of low
Native phase high density anticalcium saturated salt-water drilling fluid system, by be added water quality be 100% based on, by percentage to the quality contain with
Lower substance：Bentonite 0.5-1.5%；Sodium carbonate 0.1-0.3%；Coating agent 0.1-0.3%；Fluid loss additive A 2-5%；Filtrate reducing
Agent B 1-4%；Aluminium base polymer 1%-2%；Surfactant 0.5%-1%；Block anti-sloughing agent 1%-5%；Potassium chloride 3%-
7%；Sodium chloride 30-35%；Sodium hydroxide 0.1-0.5%；Weighting material 100%-200%.CN103013470A discloses one
Kind high inhibition drilling fluid system is by percentage to the quality, to contain based on 100% by the quality of water is added：Bentonite slurry 2.5-
4.5%, alkaline conditioner 0.1-0.3%, shale control agent 0.3-2.0%, metal ion polymer 0.2-0.4%, lignite tree
Fat 2.0-5.0%, sulfonated phenol formaldehyde resin 2.0-5.0%, cationic emulsified bitumen 1.0-3.0%, lubricant 0.5-3.0%, breast
Agent 0.2-0.8%, crude oil 2.0-8.0% and calcium carbonate superfine powder 1.0-3.0%.CN106520087A discloses a kind of brill
Into shale Strong Inhibitive Drilling Fluids, technical solution is that prepare the raw materials used component of the drilling fluid and its content be quality
Unit is gram：Tap water 900-1000；Drilling fluid bentonite 30-60；a2CO32-4；Drilling fluid high inhibition fluid loss additive
JT9000.3-1；Big potassium potent inhibitor FK-10.5-1；Drilling fluid coating agent FK-4212-5；Shale control agent NF-9231-
1.5；Cation viscosity reducer XH-11-2；Shale stabilizer DLSAS 2-3；Reservoir screener QCX-14-6；Sealing agent DE-12-4；
Lubricant for drilling fluids RT-8810.5-1；Finally add water to be configured to the lye of mass percentage concentration 40% with NaOH, adjusts system
PH is 8.5, and system density is aggravated to 1.8-2.0g/cm using drilling fluid heavy weight additive barite3, this drilling fluid is made.Wherein
Shale stabilizer is excessive, and economic cost is high, and portioned product non-environmental protection product.CN104946215A disclose it is a kind of utilize guar gum
The method that fracturing fluid waste water prepares drilling fluid, the waste water that fracturing work is generated carry out secondary use, are utilized wherein containing low
The characteristics of molecular weight guar gum and ammonium salt, though some materials are environment-friendly products, its impact of performance is bad, and long shale section is made
Certain risk is still had with effect.CN106753286A, which is disclosed, a kind of high glues low solid phase environmental protection drilling fluid and its preparation side
Method is configured by clear water, polyanion cellulose, xanthans, shale control agent, emulsified asphalt, phenolic resin etc., the system
Raw materials used is mostly environment-friendly products, and traditional performance is good, but inhibits index poor performance for shale, is not formed a set of complete
Kind, effective drilling fluid system, compatibility, additive amount etc. do not illustrate, it is difficult to be used for objectives well.
The above technology has good for how to enable drilling fluid system inhibit soil dispersion expansion in mud shale section
Wave making machine, while cutting carring ability is strong, effectively cleans wellbore, avoids the generation of drilling complexity accident, does not provide specific
Guidance program.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of environmentally friendly drilling fluid system, it can press down in mud shale section
Soil dispersion expansion processed, has good wave making machine, while cutting carring ability is strong, effectively cleans wellbore, avoids drilling complexity
The generation of accident improves drilling quality and efficiency, to meet the technology requirement that current mud shale section drilling fluid needs.
For this purpose, another technical problem to be solved by this invention is, a kind of preparation side of environmentally friendly drilling fluid system is provided
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
It is a kind of environmental protection drilling fluid system (i.e. a kind of HL-FFQH environmental protection drilling fluid system), its technical solution is that it be by
Following weight matches made of the raw material of (parts by weight)：
The environmentally friendly coating agent is：Drilling fluid coating agent multiple copolymer HLBE-1；The environmentally friendly fluid loss additive
For：The natural modified glucoside HLJ-6 of fluid loss additive for boring fluid；The bionical fluid lubricant is：Drilling fluid liquid
The bionical amino-acid ester HLR-2 of lubricant；The described bionical solid wall agent is：The solid wall agent modified resin polymer HLGB- of drilling fluid
3；The environmentally friendly caving control agent is：The bionical polymer-amino-acid HLY-1 of drilling fluid inhibitor；The bionic nano
Sealing agent is：The bionical lactic acid resin HLFD-1 of drilling fluid sealing agent, nanoscale；The environmentally friendly film forming agent is：Drilling fluid is used
Poly film agent emulsifies modified fibre HLJM-1；The Environment-friendlydiluent diluent is：Drilling fluid diluent silicon ether polymer HLX-1.
Bentonite is added in distilled water by above-mentioned weight proportion, is stirred；Natrium carbonicum calcinatum is added, is sufficiently stirred
It uniformly and conserves, sequentially adds environmentally friendly coating agent, environmentally friendly fluid loss additive, bionical fluid lubricant, bionical solid wall agent, environmental protection inhibition
Anti-sloughing agent, bionic nano sealing agent, environmentally friendly film forming agent, Environment-friendlydiluent diluent, stir evenly up to the environmentally friendly drilling fluid system.
In above-mentioned technical proposal, preferred technical solution can be that the environmentally friendly drilling fluid system is by following weight
Made of the raw material of proportioning：
The environmentally friendly coating agent is：Drilling fluid coating agent multiple copolymer HLBE-1 (drilling fluid coating agent ternarys
Copolymer HLBE-1), main component is acrylamide/2- acrylamide-2-methyl propane sulfonics/itaconic acid terpolymer；Institute
The environmentally friendly fluid loss additive stated is：The natural modified glucoside HLJ-6 of fluid loss additive for boring fluid, main component is glucoside；
The bionical fluid lubricant is：The bionical amino-acid ester HLR-2 of drilling fluid fluid lubricant, main component is amino acid
Ester；The described bionical solid wall agent is：The solid wall agent modified resin polymer HLGB-3 of drilling fluid, main component is fatty alcohol；Institute
The environmentally friendly caving control agent stated is：The bionical polymer-amino-acid HLY-1 of drilling fluid inhibitor, main component is polysaccharide；Institute
The bionic nano sealing agent stated is：The bionical lactic acid resin HLFD-1 (nanoscale) of drilling fluid sealing agent, main component is poly- third
Lactide；The environmentally friendly film forming agent is：Drilling fluid emulsifies modified fibre HLJM-1 with poly film agent, and main component is water-base epoxy tree
Fat；The Environment-friendlydiluent diluent is：Drilling fluid diluent silicon ether polymer HLX-1, main component is trimethyl silanol.
The glucoside is methyl glucose glucoside, and the amino-acid ester is ASPARTIC ACID diformazan ester hydrochloride
Salt, the fatty alcohol are commercial goods natural fatty alcohol (C16-18 alcohol, 16 fatty alcohols), and the polysaccharide is Ma Ling
Sweet potato starch or wheaten starch.The acrylamide/2- acrylamide-2-methyl propane sulfonics/itaconic acid terpolymer
Preparation method is to take 35 parts of chemical industry AMPS monomers i.e. 2- acrylamide-2-methyl propane sulfonics monomer (2- acrylamido -2- first
Base sulphonic acid monomer) it is dissolved in 400 parts of water, pH value is adjusted to neutrality with sodium hydroxide, and 50 parts of AM monomers, that is, acryloyls are added
Amine monomers, at 25 DEG C ± 2 DEG C of room temperature, stirring makes it fully dissolve, and is configured to AM and AMPS mixed solutions, temperature is heated to
50 DEG C of ± 3 DEG C of ranges, are added 15 parts of itaconic acids, and stirring makes it fully dissolve, continuously adds 0.3 part of initiator i.e. persulfuric acid
Temperature is promoted to 65 DEG C by potassium, causes Raolical polymerizable, isothermal reaction 2.5 hours at this temperature, and polymerization terminates to obtain
Blob of viscose shaped polymer, will polymerize obtained blob of viscose and is granulated to obtain average value and obtained by drying and crushing in the micelle of 5~6mm
The terpolymer (i.e. drilling fluid coating agent multiple copolymer HLBE-1).
In above-mentioned technical proposal, the preferred technical solution may also be that the environmentally friendly drilling fluid system is by following heavy
Made of the raw material for measuring proportioning：
In above-mentioned technical proposal, the preferred technical solution may also be that the environmentally friendly drilling fluid system is by following heavy
Made of the raw material for measuring proportioning：
In above-mentioned technical proposal, preferred technical solution can be that the environmentally friendly drilling fluid system is by following weight
Made of the raw material of proportioning：
HL-FFQH environmental protection drilling fluid system preparation method of the present invention is：Bentonite is added by above-mentioned weight proportion
Enter in distilled water, is stirred；Natrium carbonicum calcinatum is added, stir and is conserved, environmentally friendly coating agent, ring are sequentially added
Protect fluid loss additive, bionical fluid lubricant, bionical solid wall agent, environmentally friendly caving control agent, bionic nano sealing agent, environmental protection film forming
Agent, Environment-friendlydiluent diluent stir evenly up to the HL-FFQH environmental protection drilling fluid systems.
Further, the preparation method of HL-FFQH environmental protection drilling fluid system of the present invention specifically includes following steps：
1. configuring (drilling fluid) base slurry：(in blunger) bentonite is added in distilled water, is stirred mixing；Add anhydrous carbon
Sour sodium stirs 20 minutes (being stirred mixing), is stirred evenly after standing, conserves 16h or more.2. environmentally friendly coating agent is added：It takes
The drilling well liquid-based slurry for going out maintenance starches the environmentally friendly coating agent of interior addition toward drilling well liquid-based under stirring, stirs at least 15 minutes, obtain
To mixed liquor.3. environmentally friendly fluid loss additive is added：Under stirring, environmentally friendly filtrate reducing is added in the step 2. mixed liquor of gained
Agent stirs at least 10 minutes, obtains mixed liquor.4. bionical fluid lubricant is added：Under stirring, step 3. gained
Bionical fluid lubricant is added in mixed liquor, stirs at least 10 minutes, obtains mixed liquor.5. bionical solid wall agent is added：It is stirring
Under state, bionical solid wall agent is added in the step 4. mixed liquor of gained, stirs at least 10 minutes, obtains mixed liquor.6. being added
Environmentally friendly caving control agent：Under stirring, environmentally friendly caving control agent is added in the step 5. mixed liquor of gained, stirring is at least
10 minutes, obtain mixed liquor.7. bionic nano sealing agent is added：Under stirring, add in the step 6. mixed liquor of gained
Enter bionic nano sealing agent, stirs at least 10 minutes, obtain mixed liquor.8. environmentally friendly film forming agent is added：Under stirring, in step
Suddenly environmentally friendly film forming agent is 7. added in the mixed liquor of gained, stirs at least 10 minutes, obtains mixed liquor.9. Environment-friendlydiluent diluent is added：
Under stirring, Environment-friendlydiluent diluent is added in the step 8. mixed liquor of gained, stirs at least 10 minutes, obtains mixed liquor
(up to the environmentally friendly drilling fluid system).
The HL-FFQH environmental protection drilling fluid systems of the present invention are the drilling fluid system of high-efficiency environment friendly, which ties up to huge
Type well Erkaijing well has obtained good application, using generation of the process without complex accident, has the good feature of environmental protection, efficiently
Property, spatter property, nonstaining property.Its main performance is：High temperature resistance has strong rejection capability, high temperature and high pressure filter loss at 180 DEG C or more
Less than 16mL, HL-FFQH environmental protection drilling fluid systems of the invention pass through bio-toxicity, biological degradability and heavy metal analysis,
Meet SY/T 6787-2010《Water-soluble Oilfield Chemicals environmental protection technology requirement》Standard requirement.The environmental protection drilling fluid system
With good inhibition and wave making machine, it can have good wave making machine in the complicated well section such as ultradeep well and gypsum section, can press down
Soil dispersion expansion processed, while cutting carring ability is strong, effectively prevents the generation of drilling complexity accident, improves drilling quality
With efficiency.The drilling fluid system is suitable for various strata drillings especially mud shale section and drills.
In conclusion the present invention can inhibit soil dispersion expansion in mud shale section, there is good wave making machine, carry simultaneously
Landwaste ability is strong, effectively cleans wellbore, avoids the generation of drilling complexity accident, improves drilling quality and efficiency, meets
The technology requirement that mud shale section drilling fluid needs at present.
Specific implementation mode
To keep the goal of the invention, technical solution and advantage of the present invention clearer, below in conjunction with embodiment to the present invention
Technical solution carry out clear, complete description.Obviously, described embodiments are some of the embodiments of the present invention, Er Feiquan
Portion's embodiment.Based on the embodiment in invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Table 1 prepares the raw material proportioning table needed for the drilling fluid system of the present invention for (following) each embodiment, and raw material is matched in table 1
Than for parts by weight.
1 each embodiment of table prepares the raw material proportioning needed for the drilling fluid system of the present invention
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Water | 100 | 100 | 100 | 100 |
| Bentonite | 5 | 5 | 5 | 5 |
| Natrium carbonicum calcinatum | 0.3 | 0.3 | 0.3 | 0.3 |
| Environmentally friendly coating agent | 0.2 | 0.2 | 0.3 | 0.3 |
| Environmentally friendly fluid loss additive | 1.0 | 1.5 | 1.0 | 1.5 |
| Bionical fluid lubricant | 1.5 | 1.0 | 1.5 | 1.0 |
| Bionical solid wall agent | 1.0 | 1.5 | 1.0 | 1.5 |
| Environmentally friendly caving control agent | 1.5 | 1.0 | 1.5 | 1.0 |
| Bionic nano sealing agent | 1.5 | 1.0 | 1.5 | 1.0 |
| Environmentally friendly film forming agent | 1.5 | 1.0 | 1.5 | 1.0 |
| Environment-friendlydiluent diluent | 1.0 | 1.5 | 1.0 | 1.5 |
Table 2 is the base stock detail list used in the drilling fluid system of (following) each embodiment preparation present invention.
2 each embodiment of table prepares the base stock detail list used in the drilling fluid system of the present invention
In table 2：The glucoside is methyl glucose glucoside, and the amino-acid ester is ASPARTIC ACID diformazan
Ester hydrochloride, the fatty alcohol are commercial goods natural fatty alcohol (C16-18 alcohol, 16 fatty alcohols), the polysaccharide
For potato starch (or wheaten starch).Acrylamide/2- acrylamide-2-methyl propane sulfonics/itaconic acid described in table 2
The preparation method of terpolymer is that 35 parts of AMPS monomers i.e. 2- acrylamide-2-methyl propane sulfonics monomer is taken to be dissolved in 400 parts
In water, pH value is adjusted to neutrality with sodium hydroxide, 50 parts of AM monomers, that is, acrylamide monomers are added, at room temperature (25 DEG C ± 2 DEG C)
Under, stirring makes it fully dissolve, and is configured to AM and AMPS mixed solutions, and temperature is heated to 50 DEG C of ± 3 DEG C of ranges, is added 15 parts
Itaconic acid, stirring make it fully dissolve, continuously add 0.3 part of initiator (i.e. potassium peroxydisulfate), temperature is promoted to 65 DEG C,
Cause Raolical polymerizable, isothermal reaction 2.5 hours at a temperature of this, polymerization terminates to obtain blob of viscose shaped polymer, by polymerizeing
Obtained blob of viscose is granulated to obtain average value obtains acrylamide/2- acrylamides-in the micelle of 5~6mm by drying and crushing
2- methyl propane sulfonic acids/itaconic acid terpolymer (i.e. drilling fluid coating agent multiple copolymer HLBE-1).
Embodiment 1：The environmentally friendly drilling fluid systems of (HL-FFQH) of the present invention are the raw material systems by the weight proportion described in table 1
At.The environmentally friendly coating agent is：Drilling fluid coating agent multiple copolymer HLBE-1 (drilling fluid coating agent ternary polymerizations
Object HLBE-1)；The environmentally friendly fluid loss additive is：The natural modified glucoside HLJ-6 of fluid loss additive for boring fluid；Described is imitative
Giving birth to fluid lubricant is：The bionical amino-acid ester HLR-2 of drilling fluid fluid lubricant；The described bionical solid wall agent is：Drilling fluid
With solid wall agent modified resin polymer HLGB-3；The environmentally friendly caving control agent is：The bionical amino acid of drilling fluid inhibitor
Type of Collective object HLY-1；The bionic nano sealing agent is：The bionical lactic acid resin HLFD-1 of drilling fluid sealing agent, nanoscale；
The environmentally friendly film forming agent is：Drilling fluid emulsifies modified fibre HLJM-1 with poly film agent；The Environment-friendlydiluent diluent is：Drilling fluid
With diluent silicon ether polymer HLX-1.The above-mentioned raw materials public can be from the prosperous science and technology of Shijiazhuang China Lay before 1 day January in 2018
Co., Ltd (address：Clean chemical industrial park, phone in Shijiazhuang City of Hebei Province Xinji City：It 0311-85293520) buys, and knows
Know its chemical composition.
The preparation method of the environmentally friendly drilling fluid systems of (HL-FFQH) specifically includes following steps：1. configuring (drilling well
Liquid) base slurry：5 parts of bentonites are added in 100 parts of distilled water by (in blunger), are stirred mixing；Add 0.3 part of nothing
Aqueous sodium carbonate, high-speed stirred 20 minutes, stirs evenly after standing, maintenance 16h or more (or 16h).2. environmentally friendly coating agent is added：It takes
The drilling well liquid-based slurry for going out maintenance starches the environmentally friendly coating agent of 0.2 part of interior addition under stirring toward drilling well liquid-based, and high-speed stirred is at least
15 minutes (using 15 minutes), obtains mixed liquor.3. environmentally friendly fluid loss additive is added：Under stirring, step 2. gained
1.0 portions of environmentally friendly fluid loss additives are added in mixed liquor, high-speed stirred at least 10 minutes (using 10 minutes) obtains mixed liquor.4. plus
Enter bionical fluid lubricant：Under stirring, 1.5 parts of bionical fluid lubricants are added in the step 3. mixed liquor of gained,
High-speed stirred at least 10 minutes (using 10 minutes), obtains mixed liquor.5. bionical solid wall agent is added：Under stirring, in step
Suddenly 1.0 parts of bionical solid wall agent are 4. added in the mixed liquor of gained, high-speed stirred at least 10 minutes (using 10 minutes) is mixed
Liquid.6. environmentally friendly caving control agent is added：Under stirring, 1.5 parts of environmental protection are added in the step 5. mixed liquor of gained and inhibit
Anti-sloughing agent, high-speed stirred at least 10 minutes (using 10 minutes), obtains mixed liquor.7. bionic nano sealing agent is added：It is stirring
Under state, 1.5 parts of bionic nano sealing agents are added in the step 6. mixed liquor of gained, high-speed stirred (uses at least 10 minutes
10 minutes), obtain mixed liquor.8. environmentally friendly film forming agent is added：Under stirring, it is added in the step 7. mixed liquor of gained
1.5 parts of environmentally friendly film forming agents, high-speed stirred at least 10 minutes (using 10 minutes), obtain mixed liquor.9. Environment-friendlydiluent diluent is added：
Under stirring, 1.0 parts of Environment-friendlydiluent diluents are added in the step 8. mixed liquor of gained, high-speed stirred (uses at least 10 minutes
10 minutes), mixed liquor is obtained to get the environmentally friendly drilling fluid system.
Embodiment 2：The HL-FFQH environmental protection drilling fluid systems of the present invention are made of the raw materials by the weight proportion described in table 1
's.The preparation method of the HL-FFQH environmental protection drilling fluid systems is referring to embodiment 1.
Embodiment 3：The HL-FFQH environmental protection drilling fluid systems of the present invention are made of the raw materials by the weight proportion described in table 1
's.The preparation method of the HL-FFQH environmental protection drilling fluid systems is referring to embodiment 1.
Embodiment 4：The HL-FFQH environmental protection drilling fluid systems of the present invention are made of the raw materials by the weight proportion described in table 1
's.The preparation method of the HL-FFQH environmental protection drilling fluid systems is referring to embodiment 1.
Table 3 be (more than) performance measurement result of the HL-FFQH environmental protection drilling fluid systems of the present invention for preparing of each embodiment
Table.
The performance measurement result of HL-FFQH environmental protection drilling fluid system of the present invention prepared by 3 each embodiment of table
As shown in Table 3：HL-FFQH environmental protection drilling fluid system prepared by various embodiments of the present invention can reach good performance
Effect.
HL-FFQH environmental protection drilling fluid system of the present invention have passed through environmental protection tests.4~table of table 6 is the detection of the invention system
Tables of data.
4 HL-FFQH environmental protection drilling fluid system bio-toxicity detection datas of table
5 HL-FFQH environmental protection drilling fluid system biological degradability detection datas of table
6 HL-FFQH environmental protection drilling fluid system heavy metal analysis data of table
The HL-FFQH environmental protection drilling fluid systems of the present invention are high effective green environmentally friendly drilling fluid system, which ties up to
Huge 6 well Erkaijing well has obtained good application, compared with offset well rotating speed improve 30% or more, property of drilling fluid it is excellent, bore
Generation of the well process without complex accident, drilling fluid meet SY/T6787-2010《Water-soluble Oilfield Chemicals environmental protection technology is wanted
It asks》It is required that having the good feature of environmental protection, high efficiency, spatter property, low cost.Its main performance is：Each embodiment high temperature resistance exists
180 DEG C or more (embodiment 1 has reached 200 DEG C or more), there is strong rejection capability, high temperature and high pressure filter loss to be less than 16mL, HL-FFQH
Environmentally friendly drilling fluid system passes through environmental protection tests, meets SY/T6787-2010《Water-soluble Oilfield Chemicals environmental protection technology is wanted
It asks》It is required that.The environmental protection drilling fluid system has good inhibition and wave making machine, it can be in the Holes of Complicated Wells such as ultradeep well and gypsum section
Section has good wave making machine, can inhibit soil dispersion expansion, while cutting carring ability is strong, effectively prevents drilling complexity thing
Therefore generation, improve drilling quality and efficiency.The drilling fluid system is suitable for various strata drillings especially mud shale section and bores
It visits.
In conclusion the present invention can inhibit soil dispersion expansion in mud shale section, there is good wave making machine, carry simultaneously
Landwaste ability is strong, effectively cleans wellbore, avoids the generation of drilling complexity accident, improves drilling quality and efficiency, meets
The technology requirement that mud shale section drilling fluid needs at present, while efficiently solving problem of environmental pollution.
Claims (6)
1. a kind of environmental protection drilling fluid system, it is characterised in that it is made of the raw material that is matched following weight：
The environmentally friendly coating agent is：Drilling fluid coating agent multiple copolymer HLBE-1；The environmentally friendly fluid loss additive is：It bores
The natural modified glucoside HLJ-6 of well liquid fluid loss additive；The bionical fluid lubricant is：Drilling fluid fluid lubricant
Bionical amino-acid ester HLR-2；The described bionical solid wall agent is：The solid wall agent modified resin polymer HLGB-3 of drilling fluid；It is described
Environmentally friendly caving control agent be：The bionical polymer-amino-acid HLY-1 of drilling fluid inhibitor；The bionic nano sealing agent
For：The bionical lactic acid resin HLFD-1 of drilling fluid sealing agent, nanoscale；The environmentally friendly film forming agent is：Drilling fluid poly film agent
Emulsify modified fibre HLJM-1；The Environment-friendlydiluent diluent is：Drilling fluid diluent silicon ether polymer HLX-1；
Bentonite is added in distilled water by above-mentioned weight proportion, is stirred；Natrium carbonicum calcinatum is added, is stirred
And conserve, sequentially add environmentally friendly coating agent, environmentally friendly fluid loss additive, bionical fluid lubricant, bionical solid wall agent, environmentally friendly caving control
Agent, bionic nano sealing agent, environmentally friendly film forming agent, Environment-friendlydiluent diluent, stir evenly up to the environmentally friendly drilling fluid system.
2. environmental protection drilling fluid system according to claim 1, it is characterised in that it is the raw material system matched by following weight
At：
The environmentally friendly coating agent is：Drilling fluid coating agent multiple copolymer HLBE-1, main component are acrylamide/2- third
Acrylamide -2- methyl propane sulfonic acids/itaconic acid terpolymer；The environmentally friendly fluid loss additive is：Fluid loss additive for boring fluid day
Right modified glucose glycosides HLJ-6, main component is glucoside；The bionical fluid lubricant is：Drilling fluid liquid moistens
The bionical amino-acid ester HLR-2 of lubrication prescription, main component is amino-acid ester；The described bionical solid wall agent is：Drilling fluid is changed with solid wall agent
Property resinous polymer HLGB-3, main component is fatty alcohol；The environmentally friendly caving control agent is：Drilling fluid inhibitor is bionical
Polymer-amino-acid HLY-1, main component are polysaccharide；The bionic nano sealing agent is：Drilling fluid sealing agent is bionical
Lactic acid resin HLFD-1, main component are polylactides；The environmentally friendly film forming agent is：Drilling fluid poly film agent emulsifies modified fine
HLJM-1 is tieed up, main component is aqueous epoxy resins；The Environment-friendlydiluent diluent is：Drilling fluid diluent silicon ether polymer
HLX-1, main component are trimethyl silanols；
The glucoside is methyl glucose glucoside, and the amino-acid ester is ASPARTIC ACID diformazan ester hydrochloride,
The fatty alcohol is natural fatty alcohol, and the polysaccharide is potato starch or wheaten starch；Acrylamide/the 2-
The preparation method of acrylamide-2-methyl propane sulfonic/itaconic acid terpolymer is to take 35 parts of AMPS monomers i.e. 2- acryloyls
Amine -2- methyl propane sulfonic acid monomers are dissolved in 400 parts of water, adjust pH value to neutrality with sodium hydroxide, 50 parts of AM monomers, which are added, is
Acrylamide monomer, at 25 DEG C ± 2 DEG C of room temperature, stirring makes it fully dissolve, AM and AMPS mixed solutions is configured to, by temperature
It is heated to 50 DEG C of ± 3 DEG C of ranges, 15 parts of itaconic acids is added, stirring makes it fully dissolve, and continuously adds 0.3 part of initiator i.e.
Temperature is promoted to 65 DEG C by potassium sulfate, causes Raolical polymerizable at this temperature, isothermal reaction 2.5 hours, polymerization terminates
Obtain blob of viscose shaped polymer, by polymerize obtained blob of viscose be granulated to obtain average value 5~6mm micelle, by drying and crushing,
Obtain acrylamide/2- acrylamide-2-methyl propane sulfonics/itaconic acid terpolymer.
3. environmental protection drilling fluid system according to claim 1, it is characterised in that it is the raw material system matched by following weight
At：
4. environmental protection drilling fluid system according to claim 1, it is characterised in that it is the raw material system matched by following weight
At：
5. environmental protection drilling fluid system according to claim 1, it is characterised in that it is the raw material system matched by following weight
At：
6. a kind of preparation method of environmentally friendly drilling fluid system described in claim 1, it is characterised in that above-mentioned environmentally friendly drilling fluid
System is made of the raw material that is matched following weight：
The environmentally friendly coating agent is：Drilling fluid coating agent multiple copolymer HLBE-1；The environmentally friendly fluid loss additive is：It bores
The natural modified glucoside HLJ-6 of well liquid fluid loss additive；The bionical fluid lubricant is：Drilling fluid fluid lubricant
Bionical amino-acid ester HLR-2；The described bionical solid wall agent is：The solid wall agent modified resin polymer HLGB-3 of drilling fluid；It is described
Environmentally friendly caving control agent be：The bionical polymer-amino-acid HLY-1 of drilling fluid inhibitor；The bionic nano sealing agent
For：The bionical lactic acid resin HLFD-1 of drilling fluid sealing agent, nanoscale；The environmentally friendly film forming agent is：Drilling fluid poly film agent
Emulsify modified fibre HLJM-1；The Environment-friendlydiluent diluent is：Drilling fluid diluent silicon ether polymer HLX-1；
The preparation method of the environmentally friendly drilling fluid system is that bentonite is added in distilled water by above-mentioned weight proportion, and stirring is mixed
It closes；Natrium carbonicum calcinatum is added, stir and is conserved, environmentally friendly coating agent, environmentally friendly fluid loss additive, bionical liquid are sequentially added
Body lubricant, bionical solid wall agent, environmentally friendly caving control agent, bionic nano sealing agent, environmentally friendly film forming agent, Environment-friendlydiluent diluent, stirring
Uniformly up to the environmentally friendly drilling fluid system.
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| CN110218552A (en) * | 2019-04-17 | 2019-09-10 | 中国石油天然气股份有限公司 | Clean type recyclable drilling fluid and preparation method thereof |
| CN111334262A (en) * | 2020-03-11 | 2020-06-26 | 中国石油集团渤海钻探工程有限公司 | Multipurpose environment-friendly drilling fluid |
| CN111574973A (en) * | 2020-06-06 | 2020-08-25 | 石家庄华莱鼎盛科技有限公司 | Three-water-retention-based drilling fluid system |
| CN112239660A (en) * | 2019-07-18 | 2021-01-19 | 中石化石油工程技术服务有限公司 | Bionic wall-fixing agent for drilling fluid and preparation method thereof |
| CN113897187A (en) * | 2021-11-27 | 2022-01-07 | 石家庄华莱鼎盛科技有限公司 | Polymer clean drilling fluid system |
| CN115058233A (en) * | 2022-07-25 | 2022-09-16 | 安东石油技术（集团）有限公司 | Low-solid-phase environment-friendly composite salt water drilling fluid and preparation method and application thereof |
| CN116064001A (en) * | 2021-11-01 | 2023-05-05 | 中石化石油工程技术服务有限公司 | Well wall reinforced water-based drilling fluid for shale stratum and application thereof |
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| CN116064001B (en) * | 2021-11-01 | 2024-04-09 | 中石化石油工程技术服务有限公司 | Well wall reinforced water-based drilling fluid for shale stratum and application thereof |
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| CN113897187B (en) * | 2021-11-27 | 2022-04-22 | 石家庄华莱鼎盛科技有限公司 | Polymer clean drilling fluid system |
| CN115058233A (en) * | 2022-07-25 | 2022-09-16 | 安东石油技术（集团）有限公司 | Low-solid-phase environment-friendly composite salt water drilling fluid and preparation method and application thereof |
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