CN108373910B - 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 system 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 cleaning wellbore, avoid the generation of drilling complexity accident, improve 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 technique
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, and the drilling problem for solving mud shale location is bored to current
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 the following substances by percentage to the quality: bentonite slurry 2-7%, alkali based on 100% by the quality that water is added
Property regulator 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
Mistake agent 0.1-1: calcium carbonate 1-5: the water of potassium chloride 1-5 and its surplus.CN105001839A discloses a kind of resistant to high temperatures highly dense
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~
Drilling fluid the unstressed configuration solid albino bitumen, seawer quality 5~15% of 15% the second fluid loss additive, seawer quality 2~18%
Drilling fluid solid polymerization alcohol, seawer quality 50~100% organic salt, and the inertia being calculated according to density aggravates material
Material preparation.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 containing 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: bentonite slurry 2.5- based on 100% by the quality that water is added
4.5%, alkaline conditioner 0.1-0.3%, shale control agent 0.3-2.0%, metal ion polymer 0.2-0.4%, lignite tree
Rouge 2.0-5.0%, sulfonated phenol formaldehyde resin 2.0-5.0%, cationic emulsified bitumen 1.0-3.0%, lubricant 0.5-3.0%, cream
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
Form advance rock Strong Inhibitive Drilling Fluids, technical solution are to prepare the raw materials used component of the drilling fluid and its content is 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, aggravates system density 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 discloses a kind of using 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, xanthan gum, 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, 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 cleaning wellbore, avoids the generation of drilling complexity accident, does not provide specific
Guidance program.
Summary of the invention
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 cleaning wellbore, avoids drilling complexity
The generation of accident improves drilling quality and efficiency, to meet the technical requirements 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 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 are as follows: drilling fluid coating agent multiple copolymer HLBE-1；The environmentally friendly fluid loss additive
Are as follows: the natural modified glucoside HLJ-6 of fluid loss additive for boring fluid；The bionical fluid lubricant are as follows: drilling fluid liquid
The bionical amino-acid ester HLR-2 of lubricant；The bionical solid wall agent are as follows: the solid wall agent modified resin polymer HLGB- of drilling fluid
3；The environmentally friendly caving control agent are as follows: the bionical polymer-amino-acid HLY-1 of drilling fluid inhibitor；The bionic nano
Sealing agent are as follows: the bionical lactic acid resin HLFD-1 of drilling fluid sealing agent, nanoscale；The environmentally friendly film forming agent are as follows: drilling fluid is used
Poly film agent emulsifies modified fibre HLJM-1；The Environment-friendlydiluent diluent are as follows: 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 be can be, and the environmentally friendly drilling fluid system is by following weight
Made of the raw material of proportion:
The environmentally friendly coating agent are as follows: drilling fluid coating agent multiple copolymer HLBE-1 (drilling fluid coating agent ternary
Copolymer HLBE-1), main component is acrylamide/2- acrylamide-2-methyl propane sulfonic/itaconic acid terpolymer；Institute
The environmentally friendly fluid loss additive stated are as follows: the natural modified glucoside HLJ-6 of fluid loss additive for boring fluid, main component is glucoside；
The bionical fluid lubricant are as follows: the bionical amino-acid ester HLR-2 of drilling fluid fluid lubricant, main component is amino acid
Ester；The bionical solid wall agent are as follows: 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 are as follows: the bionical polymer-amino-acid HLY-1 of drilling fluid inhibitor, main component is polysaccharide；Institute
The bionic nano sealing agent stated are as follows: 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 are as follows: drilling fluid emulsifies modified fibre HLJM-1 with poly film agent, and main component is water-base epoxy tree
Rouge；The Environment-friendlydiluent diluent are as follows: 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 sulfonic/itaconic acid terpolymer
Preparation method is to take 35 parts of chemical industry AMPS monomers i.e. 2- acrylamide-2-methyl propane sulfonic 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 i.e. acryloyl is added
Amine monomers, at 25 DEG C ± 2 DEG C of room temperature, stirring dissolves it sufficiently, is configured to AM and AMPS mixed solution, temperature is heated to
50 DEG C of ± 3 DEG C of ranges, are added 15 parts of itaconic acids, and stirring dissolves it sufficiently, continuously adds 0.3 part of initiator i.e. persulfuric acid
Temperature is promoted to 65 DEG C by potassium, causes Raolical polymerizable at this temperature, isothermal reaction 2.5 hours, polymerization terminated to obtain
Blob of viscose shaped polymer, will polymerize obtained blob of viscose and is granulated to obtain average value and obtain in the micelle of 5~6mm by drying and crushing
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 proportion:
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 proportion:
In above-mentioned technical proposal, preferred technical solution be can be, and the environmentally friendly drilling fluid system is by following weight
Made of the raw material of proportion:
HL-FFQH environmental protection drilling fluid system preparation method of the present invention is: adding bentonite 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 system.
Further, HL-FFQH environmental protection drilling fluid system of the present invention preparation method specifically includes the 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), stirs evenly after standing, conserves 16h or more.2. environmentally friendly coating agent is added: taking
The drilling well liquid-based slurry conserved out 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 being added in step 2. resulting mixed liquor
Agent stirs at least 10 minutes, obtains mixed liquor.4. bionical fluid lubricant is added: 3. resulting in step under stirring
Bionical fluid lubricant is added in mixed liquor, stirs at least 10 minutes, obtains mixed liquor.5. bionical solid wall agent is added: stirring
Under state, bionical solid wall agent is added in step 4. resulting mixed liquor, 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 step 5. resulting mixed liquor, stirring is at least
10 minutes, obtain mixed liquor.7. bionic nano sealing agent is added: under stirring, adding in step 6. resulting mixed liquor
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
Environmentally friendly film forming agent is added in rapid 7. resulting mixed liquor, stirs at least 10 minutes, obtains mixed liquor.9. Environment-friendlydiluent diluent is added:
Under stirring, Environment-friendlydiluent diluent is added in step 8. resulting mixed liquor, stirs at least 10 minutes, obtains mixed liquor
(up to the environmentally friendly drilling fluid system).
HL-FFQH environmental protection drilling fluid system of the invention is the drilling fluid system of high-efficiency environment friendly, which ties up to huge
Type well Erkaijing well has obtained good application, generation of the use process without complex accident, has the good feature of environmental protection, efficiently
Property, spatter property, nonstaining property.Its main performance are as follows: it is resistant to high temperatures at 180 DEG C or more, there is strong rejection capability, high temperature and high pressure filter loss
Lower than 16mL, HL-FFQH environmental protection drilling fluid system of the invention passes through bio-toxicity, biological degradability and heavy metal analysis,
Meet SY/T 6787-2010 " water-soluble Oilfield Chemicals environmental protection technology requirement " standard requirements.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 cleaning wellbore, avoids the generation of drilling complexity accident, improves drilling quality and efficiency, meets
The technical requirements that mud shale section drilling fluid needs at present.
Specific embodiment
To keep goal of the invention of the invention, technical solution and advantage 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 is raw material proportioning table needed for (following) each embodiment prepares drilling fluid system of the invention, and raw material is matched in table 1
Than for parts by weight.
Raw material proportioning needed for each embodiment of table 1 prepares drilling fluid system of the 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 that (following) each embodiment prepares base stock detail list used in drilling fluid system of the invention.
Each embodiment of table 2 prepares base stock detail list used in drilling fluid system of the 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 described in table 2/2- acrylamide-2-methyl propane sulfonic/itaconic acid
The preparation method of terpolymer is that 35 parts of AMPS monomers i.e. 2- acrylamide-2-methyl propane sulfonic 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 i.e. acrylamide monomer is added, at room temperature (25 DEG C ± 2 DEG C)
Under, stirring dissolves it sufficiently, is configured to AM and AMPS mixed solution, and temperature is heated to 50 DEG C of ± 3 DEG C of ranges, is added 15 parts
Itaconic acid, stirring dissolve it sufficiently, continuously add 0.3 part of initiator (i.e. potassium peroxydisulfate), temperature is promoted to 65 DEG C,
Cause Raolical polymerizable at a temperature of this, isothermal reaction 2.5 hours, polymerization terminated to obtain blob of viscose shaped polymer, by polymerizeing
Obtained blob of viscose, which is granulated to obtain average value, obtains acrylamide/2- acrylamide-by drying and crushing in the micelle of 5~6mm
2- methyl propane sulfonic acid/itaconic acid terpolymer (i.e. drilling fluid coating agent multiple copolymer HLBE-1).
Embodiment 1: the environmentally friendly drilling fluid system of (HL-FFQH) of the invention is the raw material system by weight proportion described in table 1
At.The environmentally friendly coating agent are as follows: drilling fluid coating agent multiple copolymer HLBE-1 (drilling fluid coating agent ternary polymerization
Object HLBE-1)；The environmentally friendly fluid loss additive are as follows: the natural modified glucoside HLJ-6 of fluid loss additive for boring fluid；Described is imitative
Raw fluid lubricant are as follows: the bionical amino-acid ester HLR-2 of drilling fluid fluid lubricant；The bionical solid wall agent are as follows: drilling fluid
With solid wall agent modified resin polymer HLGB-3；The environmentally friendly caving control agent are as follows: the bionical amino acid of drilling fluid inhibitor
Quasi polymer HLY-1；The bionic nano sealing agent are as follows: the bionical lactic acid resin HLFD-1 of drilling fluid sealing agent, nanoscale；
The environmentally friendly film forming agent are as follows: drilling fluid emulsifies modified fibre HLJM-1 with poly film agent；The Environment-friendlydiluent diluent are as follows: 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 on January 1st, 2018
Co., Ltd's (address: cleaning chemical industrial park, phone: 0311-85293520 in Shijiazhuang City of Hebei Province Xinji City) buys, and knows
Know its chemical component.
1. the preparation method of the environmentally friendly drilling fluid system of (HL-FFQH) is specifically includes the following steps: configure (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, conserves 16h or more (or 16h).2. environmentally friendly coating agent is added: taking
The drilling well liquid-based slurry conserved out starches the environmentally friendly coating agent of 0.2 part of interior addition toward drilling well liquid-based under stirring, and high-speed stirred is at least
15 minutes (using 15 minutes), obtain mixed liquor.3. environmentally friendly fluid loss additive is added: 2. resulting in step under stirring
1.0 portions of environmentally friendly fluid loss additives are added in mixed liquor, high-speed stirred at least 10 minutes (using 10 minutes), obtain mixed liquor.4. plus
Enter bionical fluid lubricant: under stirring, 1.5 parts of bionical fluid lubricants being added in step 3. resulting mixed liquor,
High-speed stirred at least 10 minutes (using 10 minutes), obtain mixed liquor.5. bionical solid wall agent is added: under stirring, in step
1.0 parts of bionical solid wall agent are added in rapid 4. resulting mixed liquor, high-speed stirred at least 10 minutes (using 10 minutes), are mixed
Liquid.6. environmentally friendly caving control agent is added: under stirring, 1.5 parts of environmental protection being added in step 5. resulting mixed liquor 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: stirring
Under state, 1.5 parts of bionic nano sealing agents are added in step 6. resulting mixed liquor, (use within high-speed stirred at least 10 minutes
10 minutes), obtain mixed liquor.8. environmentally friendly film forming agent is added: under stirring, being added in step 7. resulting mixed liquor
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 step 8. resulting mixed liquor, (use within high-speed stirred at least 10 minutes
10 minutes), mixed liquor is obtained to get the environmentally friendly drilling fluid system.
Embodiment 2: HL-FFQH environmental protection drilling fluid system of the invention is made of the raw material by weight proportion described in table 1
's.The preparation method of the HL-FFQH environmental protection drilling fluid system is referring to embodiment 1.
Embodiment 3: HL-FFQH environmental protection drilling fluid system of the invention is made of the raw material by weight proportion described in table 1
's.The preparation method of the HL-FFQH environmental protection drilling fluid system is referring to embodiment 1.
Embodiment 4: HL-FFQH environmental protection drilling fluid system of the invention is made of the raw material by weight proportion described in table 1
's.The preparation method of the HL-FFQH environmental protection drilling fluid system is referring to embodiment 1.
Table 3 be (more than) performance measurement result of the HL-FFQH environmental protection drilling fluid system of the invention of each embodiment preparation
Table.
The performance measurement result of the HL-FFQH environmental protection drilling fluid system of the present invention of each embodiment of table 3 preparation
As shown in Table 3: the HL-FFQH environmental protection drilling fluid system of various embodiments of the present invention preparation 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 data of table
5 HL-FFQH environmental protection drilling fluid system biological degradability detection data of table
6 HL-FFQH environmental protection drilling fluid system heavy metal analysis data of table
HL-FFQH environmental protection drilling fluid system of the invention is 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 revolving speed improve 30% or more, property of drilling fluid it is excellent, bore
Generation of the well process without complex accident, drilling fluid meets SY/T6787-2010, and " water-soluble Oilfield Chemicals environmental protection technology is wanted
Ask " it requires, have the good feature of environmental protection, high efficiency, spatter property, low cost.Its main performance are as follows: each embodiment it is resistant to high temperatures
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 is lower than 16mL, HL-FFQH
Environmentally friendly drilling fluid system passes through environmental protection tests, and meeting SY/T6787-2010, " water-soluble Oilfield Chemicals environmental protection technology is wanted
Ask " it requires.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 cleaning wellbore, avoids the generation of drilling complexity accident, improves drilling quality and efficiency, meets
The technical requirements 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 of following weight proportion:
100 parts of water
5 parts of bentonite
0.3 part of natrium carbonicum calcinatum
0.2~0.3 part of environmentally friendly coating agent
1.0~1.5 parts of environmentally friendly fluid loss additive
1.0~1.5 parts of bionical fluid lubricant
Bionical solid 1.0~1.5 parts of wall agent
1.0~1.5 parts of environmentally friendly caving control agent
1.0~1.5 parts of bionic nano sealing agent
1.0~1.5 parts of environmentally friendly film forming agent
1.0~1.5 parts of Environment-friendlydiluent diluent
The environmentally friendly coating agent are as follows: drilling fluid coating agent multiple copolymer HLBE-1, main component are acrylamide/2- third
Acrylamide -2- methyl propane sulfonic acid/itaconic acid terpolymer；The environmentally friendly fluid loss additive are as follows: fluid loss additive for boring fluid day
Right modified glucose glycosides HLJ-6, main component is glucoside；The bionical fluid lubricant are as follows: drilling fluid liquid moistens
The bionical amino-acid ester HLR-2 of lubrication prescription, main component is amino-acid ester；The bionical solid wall agent are as follows: drilling fluid is changed with solid wall agent
Property resinous polymer HLGB-3, main component is fatty alcohol；The environmentally friendly caving control agent are as follows: drilling fluid inhibitor is bionical
Polymer-amino-acid HLY-1, main component are polysaccharide；The bionic nano sealing agent are as follows: drilling fluid sealing agent is bionical
Lactic acid resin HLFD-1, main component are polylactides；The environmentally friendly film forming agent are as follows: drilling fluid poly film agent emulsifies modified fine
HLJM-1 is tieed up, main component is aqueous epoxy resins；The Environment-friendlydiluent diluent are as follows: 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-
Acrylamide-2-methyl propane sulfonic/itaconic acid terpolymer preparation method is to take 35 parts of AMPS monomers i.e. 2- acryloyl
Amine -2- methyl propane sulfonic acid monomer is dissolved in 400 parts of water, adjusts pH value to neutrality with sodium hydroxide, 50 parts of AM monomers are added i.e.
Acrylamide monomer, at 25 DEG C ± 2 DEG C of room temperature, stirring dissolves it sufficiently, AM and AMPS mixed solution is configured to, by temperature
50 DEG C of ± 3 DEG C of ranges are heated to, are added 15 parts of itaconic acids, stirring dissolves it sufficiently, 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 terminated
Blob of viscose shaped polymer is obtained, obtained blob of viscose will be polymerize and be granulated to obtain average value in the micelle of 5 ~ 6mm, by drying and crushing,
Obtain acrylamide/2- acrylamide-2-methyl propane sulfonic/itaconic acid terpolymer；
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, environmental protection inhibit anti-
Collapse agent, bionic nano sealing agent, environmentally friendly film forming agent, Environment-friendlydiluent diluent, stirs 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:
100 parts of water
5 parts of bentonite
0.3 part of natrium carbonicum calcinatum
0.2 part of environmentally friendly coating agent
1.0 parts of environmentally friendly fluid loss additive
1.5 parts of bionical fluid lubricant
Bionical solid 1.0 parts of wall agent
1.5 parts of environmentally friendly caving control agent
1.5 parts of bionic nano sealing agent
1.5 parts of environmentally friendly film forming agent
1.0 parts of Environment-friendlydiluent diluent.
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:
100 parts of water
5 parts of bentonite
0.3 part of natrium carbonicum calcinatum
0.2 part of environmentally friendly coating agent
1.5 parts of environmentally friendly fluid loss additive
1.0 parts of bionical fluid lubricant
Bionical solid 1.5 parts of wall agent
1.0 parts of environmentally friendly caving control agent
1.0 parts of bionic nano sealing agent
1.0 parts of environmentally friendly film forming agent
1.5 parts of Environment-friendlydiluent diluent.
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:
100 parts of water
5 parts of bentonite
0.3 part of natrium carbonicum calcinatum
0.3 part of environmentally friendly coating agent
1.0 parts of environmentally friendly fluid loss additive
1.5 parts of bionical fluid lubricant
Bionical solid 1.0 parts of wall agent
1.5 parts of environmentally friendly caving control agent
1.5 parts of bionic nano sealing agent
1.5 parts of environmentally friendly film forming agent
1.0 parts of Environment-friendlydiluent diluent.
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:
100 parts of water
5 parts of bentonite
0.3 part of natrium carbonicum calcinatum
0.3 part of environmentally friendly coating agent
1.5 parts of environmentally friendly fluid loss additive
1.0 parts of bionical fluid lubricant
Bionical solid 1.5 parts of wall agent
1.0 parts of environmentally friendly caving control agent
1.0 parts of bionic nano sealing agent
1.0 parts of environmentally friendly film forming agent
1.5 parts of Environment-friendlydiluent diluent.
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 of following weight proportion:
100 parts of water
5 parts of bentonite
0.3 part of natrium carbonicum calcinatum
0.2~0.3 part of environmentally friendly coating agent
1.0~1.5 parts of environmentally friendly fluid loss additive
1.0~1.5 parts of bionical fluid lubricant
Bionical solid 1.0~1.5 parts of wall agent
1.0~1.5 parts of environmentally friendly caving control agent
1.0~1.5 parts of bionic nano sealing agent
1.0~1.5 parts of environmentally friendly film forming agent
1.0~1.5 parts of Environment-friendlydiluent diluent
The environmentally friendly coating agent are as follows: drilling fluid coating agent multiple copolymer HLBE-1, main component are acrylamide/2- third
Acrylamide -2- methyl propane sulfonic acid/itaconic acid terpolymer；The environmentally friendly fluid loss additive are as follows: fluid loss additive for boring fluid day
Right modified glucose glycosides HLJ-6, main component is glucoside；The bionical fluid lubricant are as follows: drilling fluid liquid moistens
The bionical amino-acid ester HLR-2 of lubrication prescription, main component is amino-acid ester；The bionical solid wall agent are as follows: drilling fluid is changed with solid wall agent
Property resinous polymer HLGB-3, main component is fatty alcohol；The environmentally friendly caving control agent are as follows: drilling fluid inhibitor is bionical
Polymer-amino-acid HLY-1, main component are polysaccharide；The bionic nano sealing agent are as follows: drilling fluid sealing agent is bionical
Lactic acid resin HLFD-1, main component are polylactides；The environmentally friendly film forming agent are as follows: drilling fluid poly film agent emulsifies modified fine
HLJM-1 is tieed up, main component is aqueous epoxy resins；The Environment-friendlydiluent diluent are as follows: 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-
Acrylamide-2-methyl propane sulfonic/itaconic acid terpolymer preparation method is to take 35 parts of AMPS monomers i.e. 2- acryloyl
Amine -2- methyl propane sulfonic acid monomer is dissolved in 400 parts of water, adjusts pH value to neutrality with sodium hydroxide, 50 parts of AM monomers are added i.e.
Acrylamide monomer, at 25 DEG C ± 2 DEG C of room temperature, stirring dissolves it sufficiently, AM and AMPS mixed solution is configured to, by temperature
50 DEG C of ± 3 DEG C of ranges are heated to, are added 15 parts of itaconic acids, stirring dissolves it sufficiently, 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 terminated
Blob of viscose shaped polymer is obtained, obtained blob of viscose will be polymerize and be granulated to obtain average value in the micelle of 5 ~ 6mm, by drying and crushing,
Obtain acrylamide/2- acrylamide-2-methyl propane sulfonic/itaconic acid terpolymer；
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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| CN109054781B (en) * | 2018-08-19 | 2020-05-05 | 石家庄华莱鼎盛科技有限公司 | Diluent silicon ether polymer for drilling fluid and preparation method thereof |
| 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 |
| 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 |
| CN111334262B (en) * | 2020-03-11 | 2022-05-24 | 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 |
| 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 |
| 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 |
| CN115058233B (en) * | 2022-07-25 | 2023-05-16 | 安东石油技术（集团）有限公司 | Low-solid-phase environment-friendly composite brine drilling fluid and preparation method and application thereof |
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