CN110080700A - A kind of method of Environment-protecting Drilling Fluids granularity optimization - Google Patents
A kind of method of Environment-protecting Drilling Fluids granularity optimization Download PDFInfo
- Publication number
- CN110080700A CN110080700A CN201810076954.9A CN201810076954A CN110080700A CN 110080700 A CN110080700 A CN 110080700A CN 201810076954 A CN201810076954 A CN 201810076954A CN 110080700 A CN110080700 A CN 110080700A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- particle
- drilling
- granularity
- environment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
-
- 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
Abstract
A kind of method of Environment-protecting Drilling Fluids granularity optimization, at room temperature, drilling fluid is added in nano-particle and subparticle, then high-speed stirred 30min ~ 60min, making drilling fluid size distribution after above-mentioned particle is added is in normal distribution within 20 μm, whole is in bimodal distribution, and the optimization of drilling fluid granularity can be realized.The drilling fluid includes 3 ~ 5%wt sodium bentonite, 1 ~ 3%wt sulfonated phenol formaldehyde resin, pH=7 ~ 10.The nano-particle particle size range is 2~5 μm, 0.1 ~ 5%wt of content in drilling fluid；The subparticle particle size range is 5~20 μm, 0.1 ~ 8%wt of content in drilling fluid.This method optimizes drilling fluid size distribution using varigrained nontoxic particle, forms high-quality mud cake in the borehole wall, is conducive to safely and fast drilling well, is suitable for the fields such as the leak stopping of oil drilling leakage type, borehole wall reinforcing.
Description
Technical field
The present invention relates to oil drilling auxiliary chemicals field, in particular to a kind of side of Environment-protecting Drilling Fluids granularity optimization
Method.
Background technique
It is analyzed according to statistics, brill Well Completion Engineering of Oil Reservoirs occupies 40 ~ 60% with modern oilfield prospecting developing totle drilling cost, bores
The quality of well construction quality directly influences obtainable economic benefit.Wellbore stability, mud cake quality, drilling speed in drilling process
Speed, down hole problem prevention and processing all be unable to do without property of drilling fluid control.In drilling process, need at any time
Regulate and control the performances such as density, the viscosity of drilling fluid, keeps the stability and greasy property of drilling fluid system, enhance the leak-off of drilling fluid
Wave making machine adjusts the performance of drilling fluid when complex situations occurs in underground in time.The properties of drilling fluid are all solid with drilling fluid
The distribution situation of phase granularity has direct or indirect relationship, by adjusting mud solid phase granule content, size, distribution
Situation and gradation relationship can largely influence the properties of drilling fluid.
The solid particle in drilling fluid is scattered in as the solid phase in drilling fluid, and there are mainly two types of its sources, first is that coming
Derived from the landwaste for the rock generation that is broken, second is that be artificially added for drilling technology requirement.In drilling process, in drilling fluid
The size distribution of solid phase particles has a very big impact the traditional performance parameter and oil layer protection performance of drilling fluid.It can be with shadow
Rheological characteristic, the size of the quality of mud cake quality and filter loss for ringing drilling fluid, to drilling technology challenge (such as mud shale and coal
The collapsing of layer, undergauge, bit freezing, pressure excitement etc.) have a significant impact, especially deep-well, as drilling cuttings etc. is ground for a long time,
Solid concentration increase inferior, solid phase particles size distribution are unreasonable in drilling fluid, it is easy to the performances such as rheological characteristic and dehydration occur
Situation out of hand influences the safety of underground.Solid phase particles size distribution is unreasonable in drilling fluid also very formation damage
It is big to influence.Drilling fluid particle size distribution first has a major impact mud cake quality, and adjustment drilling fluid particle size distribution can shape
At thin and compact high-quality mud cake.Temporarily stifled being mainly characterized by utilizing in drilling fluid of conventional shielding has solid phase particles and stores up to oil gas
Some bridge formation grains to match with pore throat blocking mechanism are artificially added in the laws for plugging of layer into drilling fluid as needed
Son, particle filled composite and deformation particle, so that these particles is rapidly formed around the borehole wall, effective, permeability is almost nil
Shading ring, prevent subsequent job entry well fluid in solid, liquid phase invaded formation.But currently used technology only only accounts for
The relationship between material and formation pore throat is temporarily blocked up in shielding, and there is no consider that already existing solid phase particles are to temporary in drilling fluid
The matched influence of blocking agent.By using level Four solid control equipment in drilling process, certain effect, but being directed in measure are achieved
Property it is insufficient.
Existing researcher proposes the method for carrying out size distribution adjustment for reservoir.Application No. is
201310453524.1 patent proposes the maximum pore throat diameter D90 according to target reservoir, to drilling fluid and blocks screener
The analysis of size distribution curve filters out drilling fluid and blocks the grain diameter proportion of screener.Application No. is
The Low Damage grain size distribution that the patent of 201610881250.X proposes high temperature ultradeep well reservoir aggravates water-base drilling fluid, is applicable in
In the drilling of the long net horizontal section of shale of microcrack development.Its technical solution is to prepare the raw materials used component of the drilling fluid and contain
Amount: bentonite 13.5-15；Sodium carbonate 0.675-0.75；Calcium oxide 4.5-5；Transporting agent 2.7-3；Sulfonated phenol formaldehyde resin 45-50；
Sulfonated lignite resin 45-50；Sulfonated lignite 45-50；Sefstromite powder and millimicro barite adjust density to 2.50g/cm3；Profit
Lubrication prescription 27-30；Without infiltration borehole wall stabilizer 27-30；Nanometer calcium carbonate 27-30；Anti-sloughing agent 18-20；Tap water 900-1000.First
After having configured clay-based slurry, then in 500r/min it is added with stirring calcium oxide, sequentially adds above-mentioned inorganic agent after continuing stirring, then
Regulation system density is 2.5g/cm3It finally prepares to form Low Damage grain size distribution exacerbation water-base drilling fluid.These researchs are to brill
The adjustment of well liquid size distribution plays important impetus, but fails the optimization that size distribution is carried out for environment-friendly type inorganic agent,
Or it need to be further clarified in terms of size distribution form, size, content.
Summary of the invention
In response to the problems existing in the prior art, the purpose of the present invention is to provide a kind of sides of Environment-protecting Drilling Fluids granularity optimization
Method, this method optimize drilling fluid size distribution using varigrained nontoxic particle, form high-quality mud cake in the borehole wall, have
Conducive to safely and fast drilling well, it is suitable for the fields such as the leak stopping of oil drilling leakage type, borehole wall reinforcing.
In order to reach the purpose of the present invention, the technical scheme is that be achieved:
At room temperature, drilling fluid is added in nano-particle and subparticle, then high-speed stirred 30min ~ 60min, makes to be added above-mentioned
Drilling fluid size distribution is in normal distribution within 20 μm after particle, and whole is in bimodal distribution, and it is excellent that drilling fluid granularity can be realized
Change.
The drilling fluid includes 3 ~ 5%wt sodium bentonite, 1 ~ 3%wt sulfonated phenol formaldehyde resin (SMP), pH=7 ~ 10.
The nano-particle is the combination of one or more of bentonite, nanometer calcium, nano-silicon, and particle size range is 2~5
μm, 0.1 ~ 5%wt of content in drilling fluid；The subparticle is the combination of one or both of calcium carbonate, bluestone powder, grain
Diameter range is 5~20 μm, 0.1 ~ 8%wt of content in drilling fluid.
Bentonite of the bentonite after hydration process in the nano-particle.
The bentonitic hydration process is at room temperature, bentonite to be configured to the bentonite slurry of 8-12%wt, then water
Change 20-30h.
The present invention has the advantage that compared with prior art
(1) nano-particle and subparticle that the present invention uses, the materials such as opposite pitch, nanoemulsions, environment friendly is stronger,
Asepsis environment-protecting, cost is relatively low, and granularity optimization is easy to execute-in-place；
(2) present invention can be used in the solidification of the oil drilling borehole wall and microcrack leakage stopping technology, improve filter cake intensity.
Detailed description of the invention
Attached drawing 1 is the granularity optimum results figure of an embodiment of the present invention.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1:
At room temperature, bentonite is configured to the bentonite slurry of 10%wt, aquation takes 100ml and 1000 mesh calcium carbonate 50g mono- afterwards for 24 hours
It rises and is added in 1000ml drilling fluid, carry out high-speed stirred 30min, the optimization of drilling fluid granularity can be realized.Wherein drilling fluid includes
4%wt sodium bentonite (hereinafter referred to as sodium soil), 2%wt sulfonated phenol formaldehyde resin (hereinafter referred to as SMP), pH=8.
Embodiment 2:
At room temperature, the bentonite slurry 80ml, nano-silicon 10g that same procedure is prepared in above-described embodiment 1 are taken；800 mesh of subparticle
1000ml drilling fluid (comprising 4.5%wt sodium soil, 2.7%wt SMP, pH=9) is added in calcium carbonate 50g, 1200 mesh calcium carbonate 50g, into
The optimization of drilling fluid granularity can be realized in row high-speed stirred 50min.
Embodiment 3:
At room temperature, the bentonite slurry 80ml, nanometer calcium 10g that same procedure is prepared in above-described embodiment are taken；500 mesh of subparticle is green
1000ml drilling fluid (comprising 4.5%wt sodium soil, 1.5%wt SMP, pH=7.8) is added in mountain flour 50g, 1200 mesh calcium carbonate 50g, into
The optimization of drilling fluid granularity can be realized in row high-speed stirred 40min.
Embodiment 4:
At room temperature, nano-silicon l0g, nanometer calcium 10g are taken；1000ml drilling well is added in 500 mesh bluestone powder 50g, 800 mesh calcium carbonate 50g
In liquid (including 3.5%wt sodium soil, 2%wt SMP, pH=8.8), high-speed stirred 55min is carried out, it is excellent that drilling fluid granularity can be realized
Change.
Embodiment 5:
At room temperature, nano-silicon l0g and 800 mesh calcium carbonate 50g is taken, 1000ml drilling fluid (drilling fluid composition are as follows: 5% sodium base is swollen is added
Moisten+15% weight of+0.4%+2.5% polymeric alcohol of ammonium salt+1%SMP+ 0.5%LV-CMC of native+0.2% natural polymers
Spar, pH=8) in, high-speed stirred 30min, granularity optimum results such as Fig. 1.
Claims (5)
1. a kind of method of Environment-protecting Drilling Fluids granularity optimization, it is characterised in that:
At room temperature, drilling fluid is added in nano-particle and subparticle, then high-speed stirred 30min ~ 60min, makes to be added above-mentioned
Drilling fluid size distribution is in normal distribution within 20 μm after particle, and whole is in bimodal distribution.
2. the method for Environment-protecting Drilling Fluids granularity according to claim 1 optimization, it is characterised in that: the drilling fluid includes
3 ~ 5%wt sodium bentonite, 1 ~ 3%wt sulfonated phenol formaldehyde resin, pH=7 ~ 10.
3. the method for Environment-protecting Drilling Fluids granularity according to claim 1 or 2 optimization, it is characterised in that: described to receive micro-
Grain is the combination of one or more of bentonite, nanometer calcium, nano-silicon, and particle size range is 2~5 μm, the content in drilling fluid
0.1~5%wt；The subparticle is the combination of one or both of calcium carbonate, bluestone powder, and particle size range is 5~20 μm,
0.1 ~ 8%wt of content in drilling fluid.
4. the method for Environment-protecting Drilling Fluids granularity optimization according to claim 3, it is characterised in that: in the nano-particle
Bentonite of the bentonite after hydration process.
5. the method for Environment-protecting Drilling Fluids granularity optimization according to claim 4, it is characterised in that: the bentonitic water
Change processing is at room temperature, bentonite to be configured to the bentonite slurry of 8-12%wt, then aquation 20-30h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076954.9A CN110080700A (en) | 2018-01-26 | 2018-01-26 | A kind of method of Environment-protecting Drilling Fluids granularity optimization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076954.9A CN110080700A (en) | 2018-01-26 | 2018-01-26 | A kind of method of Environment-protecting Drilling Fluids granularity optimization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110080700A true CN110080700A (en) | 2019-08-02 |
Family
ID=67412238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810076954.9A Pending CN110080700A (en) | 2018-01-26 | 2018-01-26 | A kind of method of Environment-protecting Drilling Fluids granularity optimization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110080700A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119944A (en) * | 2005-02-14 | 2008-02-06 | 法国石油研究所 | Cementing material comprising polymer particles, method for treating said particles, and cement slurry |
| WO2009106796A1 (en) * | 2008-02-29 | 2009-09-03 | Halliburton Energy Services, Inc. | Lost circulation material formulation and method of use |
| CN101979457A (en) * | 2010-09-28 | 2011-02-23 | 中国石油化工集团公司 | Seawater-based solid phase-free environment-friendly drilling and completion fluid |
| CN102453472A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | High strength heat resistant bridging plugging agent and preparation method thereof |
| CN104114513A (en) * | 2012-02-17 | 2014-10-22 | 哈里伯顿能源服务公司 | Methods and compositions comprising cement kiln dust having an altered particle size |
| CN105647496A (en) * | 2016-01-30 | 2016-06-08 | 张向南 | Expandable biopolymer temporary plug profile control agent and preparation method thereof |
| CN106753294A (en) * | 2016-12-06 | 2017-05-31 | 长江大学 | A kind of leak-stopping cement mortar |
-
2018
- 2018-01-26 CN CN201810076954.9A patent/CN110080700A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119944A (en) * | 2005-02-14 | 2008-02-06 | 法国石油研究所 | Cementing material comprising polymer particles, method for treating said particles, and cement slurry |
| WO2009106796A1 (en) * | 2008-02-29 | 2009-09-03 | Halliburton Energy Services, Inc. | Lost circulation material formulation and method of use |
| CN101979457A (en) * | 2010-09-28 | 2011-02-23 | 中国石油化工集团公司 | Seawater-based solid phase-free environment-friendly drilling and completion fluid |
| CN102453472A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | High strength heat resistant bridging plugging agent and preparation method thereof |
| CN104114513A (en) * | 2012-02-17 | 2014-10-22 | 哈里伯顿能源服务公司 | Methods and compositions comprising cement kiln dust having an altered particle size |
| CN105647496A (en) * | 2016-01-30 | 2016-06-08 | 张向南 | Expandable biopolymer temporary plug profile control agent and preparation method thereof |
| CN106753294A (en) * | 2016-12-06 | 2017-05-31 | 长江大学 | A kind of leak-stopping cement mortar |
Non-Patent Citations (6)
| Title |
|---|
| 司西强等: "龙马溪页岩气钻井用高性能水基钻井液的研究", 《能源化工》 * |
| 张路等: "塔河油田盐层承压堵漏技术应用", 《中外能源》 * |
| 曹成等: "水基钻井液用防塌封堵剂封堵效果实验研究", 《应用化工》 * |
| 程智等: "窄安全密度窗口钻井液封堵技术在跃满区块的应用", 《石油地质与工程》 * |
| 邸伟娜等: "国外页岩气钻井液技术新进展", 《钻井液与完井液》 * |
| 魏殿举等: "鄂尔多斯地区防塌钻井液技术", 《钻井液与完井液》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2190942B1 (en) | Methods of using colloidal silica based gels | |
| AU2015299742B2 (en) | Drilling fluid additive | |
| CN106318347A (en) | Silicate-aluminate anti-sloughing drilling fluid | |
| CN105199685B (en) | A kind of water-base drilling fluid of inductivity crack leak-proof leak-stopping | |
| CN102434124A (en) | Successive-compounding-process based plugging method for well drilling | |
| CN104962251B (en) | A kind of microemulsion film forming blocks drilling fluid and preparation method | |
| CA1121145A (en) | Drilling fluid containing crosslinked polysaccharide derivative | |
| CN108822811A (en) | A kind of gas well horizontal well slim-hole polyamines high inhibition caving-preventing drilling fluid and preparation method | |
| US11434410B2 (en) | Methods of making and using a wellbore servicing fluid for controlling losses in permeable zones | |
| CN104559976A (en) | Water-based drilling fluid and preparation method thereof | |
| CN103333667B (en) | Low pressure coefficient Gas Reservoir protection drilling fluid composition and preparation method | |
| CN103740351A (en) | Low-density consolidation type plugging agent | |
| CN107541195A (en) | Filming water-base drilling fluid and preparation method thereof | |
| CN109021940A (en) | High-temperature high-density high-performance environment-friendly water-base drilling fluid and preparation method thereof | |
| CN105062436A (en) | Confining liquid system beneficial for stability of barefoot well wall of high temperature and high pressure well | |
| AU2019204667B2 (en) | Drilling Fluid Additive | |
| CN110529089A (en) | A kind of open-hole horizontal well refracturing method | |
| CN109575889A (en) | A kind of rotary digging drilled as holes solid phase free flushing liquid and preparation method thereof | |
| CN113637464B (en) | Anti-sloughing drilling fluid and preparation method and application thereof | |
| CN106121568B (en) | A kind of in-situ processing technique of environment-friendly type polyethers hydramine drilling fluid | |
| CN107815299A (en) | A kind of low-density organic silicon nano water-base drilling fluid | |
| CN108130061A (en) | A kind of caving-preventing drilling fluid and its preparation method and application | |
| US10533125B2 (en) | Thiol-ene based resin system for sand consolidation and methods using thereof | |
| CN110080700A (en) | A kind of method of Environment-protecting Drilling Fluids granularity optimization | |
| CN104419389A (en) | Clay shale formation stabilization micro-nano drilling fluid and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190802 |