CN104087272A - Composite saturated brine drilling fluid capable of resisting CO3<2-> and HCO3<-> pollution - Google Patents

Composite saturated brine drilling fluid capable of resisting CO3<2-> and HCO3<-> pollution Download PDF

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Publication number
CN104087272A
CN104087272A CN201410238217.6A CN201410238217A CN104087272A CN 104087272 A CN104087272 A CN 104087272A CN 201410238217 A CN201410238217 A CN 201410238217A CN 104087272 A CN104087272 A CN 104087272A
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drilling fluid
add
agent
stir
parts
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成效华
祁亚男
王宝田
韩青松
陈二丁
张海青
王俊
李蕾
渠震龙
杨华
吕振华
杨龙波
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China Petrochemical Corp
Drilling Engineering Technology Co of Sinopec Shengli Petroleum Engineering Corp
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China Petrochemical Corp
Drilling Engineering Technology Co of Sinopec Shengli Petroleum Engineering Corp
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Priority to CN201410238217.6A priority Critical patent/CN104087272A/en
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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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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

A composite saturated brine drilling fluid capable of resisting CO3<2-> and HCO3<-> pollution is disclosed. According to the technical scheme, the drilling fluid is prepared from the following raw materials in percent by volume: 1-3% parts of bentonite, 1-3% parts of a pH conditioning agent, 2-5% parts of a shale inhibitor, 2-6% parts of a high-temperature-resistant filtration reducer, 2-6% parts of a high-temperature-resistant composite filtration reducer, 1-4% parts of a viscosity reducer, 20-28% parts of NaCl, 5-9% parts of KCl and 0.05-0.5% parts of a foam inhibitor, and an added weighting material for adjusting the density of the drilling fluid to be 1.80 g/cm<3>. The beneficial effects comprise that (1) the drilling fluid has good effect of resisting CO3<2-> and HCO3<-> pollution; (2) the drilling fluid is strong in high-temperature resistance and is capable of resisting 200 DEG C high temperature; (3) the drilling fluid is good in rheological property; (4) the drilling fluid is good in water-loss wall-building property; (5) the drilling fluid is strong in inhibition property; (6) the drilling fluid is good in lubrication property; and (7) the drilling fluid is strong in blocking capability.

Description

A kind of compound saturated salt-water drilling fluid can anti-CO32-, HCO3-polluting
Technical field
The present invention relates to a kind of oilfield drilling liquid, particularly a kind of compound saturated salt-water drilling fluid can anti-CO32-, HCO3-polluting.
Background technology
Drilling fluid is subject to CO 3 2-and HCO 3 -the reason of ionic soil is a lot, mainly contains the following aspects: 1. bore and meet soluble carbonate salt stratum; 2. in newly drilled well eye, contain CO 2resident fluid (gas or water) enter drilling fluid, this situation in the time creeping into limestone, sandstone and mudstone stratum all likely occur; 3. process be subject to drilling fluid that gypsum pollutes or when drilling out soda ash dosage excessive; 4. drilling fluid flow or to its whipping process in, airborne CO 2sneak into drilling fluid accumulation; 5. the pyrolysis of organic additive for drilling fluid under hot conditions, as the thermal destruction in the time that temperature is greater than 300 DEG C such as iron complex salt, xylogen; bore and meet containing H 2, generally can in drilling fluid, add carbonato treatment agent, as zinc subcarbonate when on S the stratum.
Drilling fluid is subject to CO 3 2-and HCO 3 -after pollution, can make the performance of drilling fluid sharply worsen, often show as that viscosity and shear force rising, mobility variation, filter loss increase, mud cake is empty thick etc., particularly, in deep-well and ultra deep well drilling process, very easily cause the down-hole such as bit freezing, hole instability complex accident.At present, be subject to CO for drilling fluid both at home and abroad 3 2-and HCO 3 -the complexcase of polluting, carry out broad research:
The propositions such as the Chuan Qing drilling project Liu Xiang of company limited, Luo Yufeng are worked as drilling fluid and are subject to CO 2when pollution, use CaCl 2carry out conventional processing (seeing " drilling technique ", 2009,32(6): 78-81);
Sun Changjian, the Peng Guo etc. of the Chuan Qing drilling project Chuan Dong of company probing company (Chongqing) proposes the suspension of preparation CaO content 10%, makes Ca 2+with CO 3 2-and HCO 3 -reaction, produces CaCO 3the treatment process (seeing " Speciality Petrochemicals progress ", 2009,10(9) that precipitation is removed: 28-30);
Chuan Qing drilling project company of CNPC and the Zhang Kun of Southwest Oil company of CNPC, Huangping, Zheng Youcheng etc. are subject to CO for drilling fluid 2prevention and the treatment process of " pressures, two height, three remove, four open up " that severe contamination proposes, make high density drilling fluid be subject to CO 2pollution becomes and is easy to process (seeing " Sweet natural gas technology is with economical ", 2011,05(2), 48-50);
The people such as the Ma Hui of Shengli Petroleum Administration Bureau propose to use superfine cement to process Drilling Fluid Technique for Deep CO 3 2-and HCO 3 -pollute (seeing " Drilling and completion fluids ", 2011,03(28) 88-90);
China Petroleum Univ. (East-China) and Liu of Shengli Petroleum Administration Bureau help cloud etc. for bottom, the secondary group easily collapse mud stone, cream mud stone and containing seam stratum, propose to use silicate to adjust processing (seeing " oil and gas chemical industry ", 2012,01,104-118);
Geng Jiaojiao, Yan Jienian, the Cao Ming etc. of Chinese Petroleum Univ. and International Petroleum Engineering Project company of SINOPEC, Jilin Oil Field company of CNPC are subject to CO for drilling fluid 2natural gas pool reservoir impact, preferred oil-in-water and formate, without two kinds of under-balanced drilling liquid system of solid phase, meet the requirement of under-balanced drilling.(seeing " petroleum prospecting and exploitation ", 2011,06(38), 750-755);
But for boring the pollution of meeting soluble carbonate salt stratum and cause, because the sodium bicarbonate in stratum constantly dissolves, cause simple use treatment agent cannot thoroughly remove CO 3 2-and HCO 3 -.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, and a kind of compound saturated salt-water drilling fluid can anti-CO32-, HCO3-polluting is provided, and has anti-CO 3 2-, HCO 3 -pollution capacity is good, rheological good, strong inhibition capability, oilness is good, shut-off capacity is strong feature, has overcome and has bored while meeting solubility carbonic acid sodium stratum, and drilling fluid is subject to CO 3 2-, HCO 3 -pollute, thereby make its unstable properties cause the shortcomings such as down-hole complex accident takes place frequently.
Its technical scheme is to adopt the component of following raw material to make drilling fluid, and its content is volume percent:
Wilkinite 1 ~ 3%, pH adjusting agent 1 ~ 3%, shale control agent 2 ~ 5%, heat resisting fluid loss reducing agent 2 ~ 6%, the compound fluid loss agent 2 ~ 6% of high temperature resistance, viscosity-depression agent 1 ~ 4%, NaCL20 ~ 28%, KCL5 ~ 9%, froth suppressor 0.05 ~ 0.5%, add high-density weighting material, regulating density of drilling liquid is to 1.80g/cm 3;
Wilkinite is that one-level or secondary are removed soil, pH adjusting agent is sodium hydroxide or potassium hydroxide, shale control agent is low sticky sodium carboxymethyl-cellulose, heat resisting fluid loss reducing agent is sulfomethylation resol II type, the compound fluid loss agent of high temperature resistance is sulfomethylation humic acid, is called for short sulfonated lignite resin, and viscosity-depression agent is sulfonation tannin, froth suppressor is sodium laurylsulfonate, and high-density weighting material is barite.
The method for formulating of the drilling fluid that the present invention mentions comprises the following steps, and content is volume percent:
Under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds wilkinite 1 ~ 3%, stir 10min, add pH adjusting agent 1 ~ 3%, stir 10min, add shale control agent 2 ~ 5%, stir 15min, add heat resisting fluid loss reducing agent 2 ~ 6%, stir 10min, add the compound fluid loss agent 2 ~ 6% of high temperature resistance, stir 10min, add viscosity-depression agent 1 ~ 4%, stir 10min, add NaCL20 ~ 28%, stir 20min, add KCL5 ~ 9%, stir 20min, add froth suppressor 0.05 ~ 0.5%, stir 10min, add high-density weighting material, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, make drilling fluid of the present invention.
The invention has the beneficial effects as follows: (1) drilling fluid of the present invention has anti-CO32-, effect that HCO3-pollution capacity is good; (2) high-temperature resistance is strong, can resist 200 DEG C of high temperature; (3) rheological is good; (4) dehydration building capacity is good; (5) strong inhibition capability; (6) oilness is good; (7) shut-off capacity is strong.
Embodiment
Embodiment 1: anti-CO 3 2-, HCO 3 -the method for formulating of the compound saturated salt-water drilling fluid polluting:
This can anti-CO 3 2-, HCO 3 -the method for formulating of the saturated salt-water drilling fluid polluting is: under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds 1 ~ 3% wilkinite, stir 10min, add 1 ~ 3%NaOH, stir 10min, add 2 ~ 5% low sticky sodium carboxymethyl-celluloses, stir 15min, add 2 ~ 6% sulfomethylation resol II types, stir 10min, add 2 ~ 6% sulfonated lignite resins, stir 10min, add 1 ~ 4% sulfonation tannin, stir 10min, add 20 ~ 28%NaCL, stir 20min, add 5 ~ 9%KCL, stir 20min, add 0.05 ~ 0.5% sodium laurylsulfonate, stir 10min, add high-density weighting material barite, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, making can anti-CO 3 2-, HCO 3 -the compound saturated salt-water drilling fluid polluting, code name KCHO-1.
About anti-CO of the present invention 3 2-, HCO 3 -pollution capacity is evaluated
In the time boring chance solubility carbonic acid sodium stratum, in rock stratum, the dissolving of a large amount of sodium bicarbonates causes drilling fluid to be subject to serious CO 3 2-and HCO 3 -the pollution of ion, makes that drilling fluid viscosity and shear force rising, mobility variation, filter loss increase, mud cake void is thick, makes irregular, the easy bit freezing of hole diameter, causes down-hole complex accident to take place frequently, and therefore, is necessary drilling fluid system to carry out antipollution evaluation.According to the method for " GB/T16783.1-2006 industrial gas oil drilling fluid on-the-spot test first part water-base drilling fluid ", measure respectively under different condition different dosage NaHCO 3rheological on drilling fluid, the impact of leak-off, measurement result is in table 1.
The anti-CO of table 1 3 2-, HCO 3 -pollution capacity evaluation result
From table 1 experimental data, NaHCO 3content in 2 ~ 6%, this property of drilling fluid is almost constant, works as NaHCO 3content up to 10% time, this drilling fluid system still have good mobility and filter loss less, illustrate that this drilling fluid contamination resistance is strong.
About high temperature resistance evaluation of the present invention
Drilling fluid system prepared by embodiment 1, according to the method for " GB/T16783.1-2006 industrial gas oil drilling fluid on-the-spot test first part water-base drilling fluid ", measure respectively aging before and 150 DEG C/16h, 180 DEG C/16h, 200 DEG C/16h, rheological (containing first egress), leak-off after aging, wherein location parameter has AV(apparent viscosity), PV(plastic viscosity), YP(yield value), Gel(gel strength), Fl aPI(API dehydration), FL hTHP(High Temperature High Pressure dehydration), measurement result is in table 2.
Table 2 high temperature resistant property evaluation result
Note: all High Temperature High Pressure dehydration test conditions are: 150 DEG C/30min, 3.5MPa.
From table 2 experimental data, this drilling fluid system various performance perameters after high temperature ageing are basicly stable, without seriously dilution, significantly thickening, solid phase coagulation, high-temp glue coagulation phenomena, show that it has good temperature resistance ability.
About inhibition evaluation of the present invention
(1) shale rolling dispersion experiment
Take 50.00g(accurately to 0.01g) 2mm ~ 4.5mm Shengli Oil Field SHAHEJIE FORMATION mud shale rock sample, pack in the digestion tank of the drilling fluid that fills 350ml preparation, add a cover and screw, digestion tank is put into roller heating stove, heat is rolled 120 DEG C/16h, take out digestion tank and be cooled to room temperature, pour pot liquid and rock sample into aperture 0.45 mm(40 order) in standard sieve with after clear water rinsing, the remaining landwaste of collection screen is in watch-glass, constant temperature drying 4h at (105 ± 5) DEG C, take out cooling, the m that weighs after the quiet 24h of putting in air, calculate recovery rate R: ;
Change the drilling fluid of above-described embodiment preparation into distilled water, as blank contrast experiment.
Table 3 rolling rate of recovery experimental result
From table 3 experimental data, under equal conditions, drilling fluid system is high more a lot of than the rate of recovery of distilled water, illustrates that this drilling fluid system has good inhibition, can effectively suppress shale hydration and disperse.
(2) linear expansion experiment
Take drilling fluid sodium bentonite 10.00 g of drying 4 h in (105 ± 3) DEG C, pack shale expansion instrument into and survey in cylinder, on pressing machine, add 4 MPa pressure, keep 5 min, make test core.The survey cylinder that rock core is housed is arranged on shale expansion instrument, the drilling fluid that example 1 is prepared injects to be surveyed in cylinder, measures the polar expansion amount of 8h, 16 h, and the drilling fluid that example 1 is prepared changes distilled water into, the polar expansion amount of distilled water 8h, 16h of measuring, as blank test, is calculated core rate of expansion H:
, wherein H tfor the linear expansion amount of time t, H corefor core original height;
Table 4 linear expansion experimental result
From table 4 experimental data, after 16h, the linear expansion rate of distilled water is than anti-CO 3 2-, HCO 3 -the saturated salt-water drilling fluid polluting is high a lot, illustrates that this drilling fluid system can significantly reduce shale hydration swell increment, can prevent because of the shale hydration hole instability causing that expands.
About oilness evaluation of the present invention
At ambient temperature, the full-automatic tester for viscosity factor of ZSN-2A type that adopts Qingdao Jiaonan Analytical Instruments Plant to produce is measured, and in concrete measuring method, adopts slide block type to measure, and measuring method is as follows:
Power-on switch, liquid crystal display is lighted, and adjusts beneath three regulating wheels of shell, makes slide plate level, and air level is placed in the middle, presses reset button, makes the zero clearing of liquid crystal display upper angle value; The drilling fluid compacting mud cake of example 1 being prepared with middle pressure filter press, is placed on mud cake on slide plate, and slide block is placed on mud cake gently, leaves standstill one minute; Press unlatching button, micro motor for driving drive motor, makes slide plate upset, and in the time that slide block starts to slide, instrument automatic decision also stops turnover panel rotation, can directly directly read mud cake frictional coefficient K by liquid crystal display f.
Table 5 mud cake frictional coefficient experimental result
From table 5 experimental data, drilling fluid system K of the present invention fbe controlled at completely in 0.05 ~ 0.09 scope, illustrate that this drilling fluid system has good lubricity, can effectively reduce the generation of down-hole complex accident, meet wellbore construction requirement completely.
About plugging effect evaluation of the present invention
This experiment adopts high-temperature and high-pressure filter press to evaluate the mud cake rate of permeation of three cover systems, and measuring method is as follows:
Getting 23g10 ~ 20 order, 23g20 ~ 40 order, 35g80 ~ 100 object quartz sand mixes, pack in the high-temperature and high-pressure filter press of dismantling at two ends, rock gently, pressurization 0.1MPa, pour into the drilling fluid that example 1 is prepared, under 150 DEG C, 3.5MPa condition, measure 30min high temperature and high pre ssure filtration, drilling fluid is replaced as to clear water, note preventing from washing out mud cake, measure respectively the water outlet volume v of 1MPa/30min, 2MPa/30min, 3MPa/30min 1, v 2, v 3, with steel ruler mensuration hmc h 1, h 2, h 3, calculate mud cake rate of permeation K 1, K 2, K 3, , evaluate accordingly the shut-off capacity of this drilling fluid in stratum;
Table 6 mud cake rate of permeation experimental result
From table 6 experimental data, the mud cake that drilling fluid system of the present invention forms is thin and tough, and rate of permeation is low and bearing capacity good, can effectively reduce the filter loss of drilling fluid, prevents rock of borehole hydration swelling, flake-off piece, has stronger shutoff.
Embodiment 2: a kind of anti-CO 3 2-, HCO 3 -the method for formulating of the compound saturated salt-water drilling fluid polluting:
This can anti-CO 3 2-, HCO 3 -the method for formulating of the saturated salt-water drilling fluid polluting is: under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds 1% wilkinite, one-level is removed soil, stir 10min, add 1%NaOH, stir 10min, add 2% low sticky sodium carboxymethyl-cellulose, LV-CMC, stir 15min, add 2% sulfomethylation resol II type, SMP-II, stir 10min, add 2% sulfomethylation humic acid, be called for short sulfonated lignite resin, SPNH, stir 10min, add 1 ~ 4% sulfonation tannin, stir 10min, add 20%NaCL, stir 20min, add 5 ~ 9%KCL, stir 20min, add 0.05% sodium laurylsulfonate, stir 10min, add high-density weighting material barite, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, making can anti-CO 3 2-, HCO 3 -the compound saturated salt-water drilling fluid polluting, code name KCHO-1.
Embodiment 3: a kind of anti-CO 3 2-, HCO 3 -the method for formulating of the compound saturated salt-water drilling fluid polluting
This can anti-CO 3 2-, HCO 3 -the method for formulating of the saturated salt-water drilling fluid polluting is: under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds 3% wilkinite, one-level is removed soil, stir 10min, add 3%NaOH, stir 10min, add 2 ~ 5% low sticky sodium carboxymethyl-celluloses, LV-CMC, stir 15min, add 6% sulfomethylation resol II type, SMP-II, stir 10min, add 6% sulfomethylation humic acid, be called for short sulfonated lignite resin, SPNH, stir 10min, add 4% sulfonation tannin, stir 10min, add 28%NaCL, stir 20min, add 9%KCL, stir 20min, add 0.5% sodium laurylsulfonate, stir 10min, add high-density weighting material barite, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, making can anti-CO 3 2-, HCO 3 -the compound saturated salt-water drilling fluid polluting, code name KCHO-1.
Embodiment 4: a kind of anti-CO 3 2-, HCO 3 -the method for formulating of the compound saturated salt-water drilling fluid polluting
This can anti-CO 3 2-, HCO 3 -the method for formulating of the saturated salt-water drilling fluid polluting is: under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds 2% wilkinite, one-level is removed soil, stir 10min, add 2%NaOH, stir 10min, add 3% low sticky sodium carboxymethyl-cellulose, LV-CMC, stir 15min, add 4% sulfomethylation resol II type, SMP-II, stir 10min, add 4% sulfomethylation humic acid, be called for short sulfonated lignite resin, SPNH, stir 10min, add 3% sulfonation tannin, stir 10min, add 24%NaCL, stir 20min, add 7%KCL, stir 20min, add 0.3% sodium laurylsulfonate, stir 10min, add high-density weighting material barite, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, making can anti-CO 3 2-, HCO 3 -the compound saturated salt-water drilling fluid polluting, code name KCHO-1.
Embodiment 5: a kind of anti-CO 3 2-, HCO 3 -the method for formulating of the compound saturated salt-water drilling fluid polluting
This can anti-CO 3 2-, HCO 3 -the method for formulating of the saturated salt-water drilling fluid polluting is: under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds 2% wilkinite, secondary is removed soil, stir 10min, add 2%KOH, stir 10min, add 3% low sticky sodium carboxymethyl-cellulose, LV-CMC, stir 15min, add 4% sulfomethylation resol II type, SMP-II, stir 10min, add 3% sulfomethylation humic acid, be called for short sulfonated lignite resin, SPNH, stir 10min, add 3% sulfonation tannin, stir 10min, add 24%NaCL, stir 20min, add 7%KCL, stir 20min, add 0.3% sodium laurylsulfonate, stir 10min, add high-density weighting material barite, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, making can anti-CO 3 2-, HCO 3 -the compound saturated salt-water drilling fluid polluting, code name KCHO-1.

Claims (2)

1. the compound saturated salt-water drilling fluid can anti-CO32-, HCO3-polluting, is characterized in that: adopt the component of following raw material to make drilling fluid, its content is volume percent:
Wilkinite 1 ~ 3%, pH adjusting agent 1 ~ 3%, shale control agent 2 ~ 5%, heat resisting fluid loss reducing agent 2 ~ 6%, the compound fluid loss agent 2 ~ 6% of high temperature resistance, viscosity-depression agent 1 ~ 4%, NaCL20 ~ 28%, KCL5 ~ 9%, froth suppressor 0.05 ~ 0.5%, add high-density weighting material, regulating density of drilling liquid is to 1.80g/cm 3;
Wilkinite is that one-level or secondary are removed soil, pH adjusting agent is sodium hydroxide or potassium hydroxide, shale control agent is low sticky sodium carboxymethyl-cellulose, heat resisting fluid loss reducing agent is sulfomethylation resol II type, the compound fluid loss agent of high temperature resistance is sulfomethylation humic acid, is called for short sulfonated lignite resin, and viscosity-depression agent is sulfonation tannin, froth suppressor is sodium laurylsulfonate, and high-density weighting material is barite.
2. the compound saturated salt-water drilling fluid can anti-CO32-, HCO3-polluting according to claim 1, is characterized in that: the method for formulating of drilling fluid comprises the following steps, and content is volume percent:
Under room temperature condition, first measure 500ml tap water with graduated cylinder, under stirring, high speed electric adds wilkinite 1 ~ 3%, stir 10min, add pH adjusting agent 1 ~ 3%, stir 10min, add shale control agent 2 ~ 5%, stir 15min, add heat resisting fluid loss reducing agent 2 ~ 6%, stir 10min, add the compound fluid loss agent 2 ~ 6% of high temperature resistance, stir 10min, add viscosity-depression agent 1 ~ 4%, stir 10min, add NaCL20 ~ 28%, stir 20min, add KCL5 ~ 9%, stir 20min, add froth suppressor 0.05 ~ 0.5%, stir 10min, add high-density weighting material, regulating density of drilling liquid is to 1.80g/cm 3, stir 1h, make drilling fluid of the present invention.
CN201410238217.6A 2014-05-30 2014-05-30 Composite saturated brine drilling fluid capable of resisting CO3<2-> and HCO3<-> pollution Pending CN104087272A (en)

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CN107541196A (en) * 2017-08-25 2018-01-05 克拉玛依市创拓有限责任公司 Environment-friendly type saturated brine high-density water-based drilling fluid and preparation method thereof
CN109021940A (en) * 2018-07-25 2018-12-18 新疆安东石油技术服务有限责任公司 High-temperature high-density high-performance environment-friendly water-base drilling fluid and preparation method thereof
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周光正等: "钻井液受碳酸根/碳酸氢根污染的探讨", 《钻井液与完井液》 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105349121A (en) * 2015-11-18 2016-02-24 辽宁石油化工大学 Low-filtration high-temperature-resistant water-based drilling fluid for deep wells
CN107541196A (en) * 2017-08-25 2018-01-05 克拉玛依市创拓有限责任公司 Environment-friendly type saturated brine high-density water-based drilling fluid and preparation method thereof
CN109021940A (en) * 2018-07-25 2018-12-18 新疆安东石油技术服务有限责任公司 High-temperature high-density high-performance environment-friendly water-base drilling fluid and preparation method thereof
CN109021940B (en) * 2018-07-25 2023-04-25 新疆安东石油技术服务有限责任公司 High-temperature high-density high-performance environment-friendly water-based drilling fluid and preparation method thereof
CN109370548A (en) * 2018-12-10 2019-02-22 新疆安东石油技术服务有限责任公司 One kind environment protection water-based drilling fluid resistant to high temperatures and preparation method thereof
CN114371257A (en) * 2022-01-12 2022-04-19 成都汇能恒源科技有限公司 Indoor evaluation method for carbon dioxide pollution of drilling fluid
CN114371257B (en) * 2022-01-12 2023-11-24 成都汇能恒源科技有限公司 Indoor evaluation method for pollution of drilling fluid by carbon dioxide
CN116948612A (en) * 2023-06-30 2023-10-27 金徽矿业股份有限公司 Preparation method of drilling construction carbonaceous layer slurry

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