CN104194743A - Anti-collapse agent for oilfield drilling fluids, and preparation method and application thereof - Google Patents
Anti-collapse agent for oilfield drilling fluids, and preparation method and application thereof Download PDFInfo
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- CN104194743A CN104194743A CN201410409843.7A CN201410409843A CN104194743A CN 104194743 A CN104194743 A CN 104194743A CN 201410409843 A CN201410409843 A CN 201410409843A CN 104194743 A CN104194743 A CN 104194743A
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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
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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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
- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/575—Compositions based on water or polar solvents containing organic compounds
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Abstract
The invention provides an anti-collapse agent for oilfield drilling fluids, and a preparation method and application thereof. The method comprises the following steps: mixing high-carbon aliphatic acid, high-carbon fatty alcohol and polyalcohol in a weight ratio of (20-30):(18-27):(5-12), and stirring at 70-105 DEG C for react for 5-7 hours, wherein the product is the anti-collapse agent for drilling fluids. The anti-collapse agent is fluorescence-free white asphalt, can be used for test shafts and development wells, and can effectively improve the drilling fluid sludge cake and prevent the side wall from collapse. Compared with the prior art, the anti-collapse agent has the advantages of low fluorescence level, high salt and calcium resistance, no biological toxicity, no environment pollution and the like; and the product has wide softening point range, and is applicable to test shafts and development wells with different bottom temperatures.
Description
Technical field
The present invention relates to anti-sloughing agent and preparation method thereof and application for a kind of oil field drilling fluids, specifically a kind of can be used as oil field drilling fluids with anti-sloughing agent without fluorescence albino bitumen and preparation method thereof and related application.
Background technology
Along with the development of petroleum industry exploratory development technology, more and more higher to the requirement of anti-caving agent for drilling fluid.Pitch and modified product thereof, as sulfonated gilsonite series products, because its caving-preventing characteristic good in drilling fluid and reservoir protection effect are widely used, be acknowledged as best anti-caving agent for drilling fluid at home and abroad.But also there is obvious shortcoming in sulfonated gilsonite series products: (1) fluorescence grade is high, disturbs geological logging, limited its application in prospecting borehole; (2) contain more condensed-nuclei aromatics toxic substance, environmental pollution is serious, and in today that environmental protection requirement is improved day by day, sulfonated gilsonite series products can not meet the requirement of environment protection.
For reducing the toxicity of Evaluating Method, in the industry related personnel develop one by one low fluorescence or without fluorescence albino bitumen product with as anti-caving agent for drilling fluid.
For example, " organic salt drilling fluid is in the application of Donghe oilfield in Tarim DH1-8-6 well " (people such as Zhou Jiandong, < < Drilling and completion fluids > >, 04 phase in 2002) mentioned the application without fluorescence albino bitumen NFA-25 of better performances.For another example, " Evaluation and application of non-fluorescence collapse-proof agent albino bitumen W-ASP " (Bai Hongmei, < < Drilling and completion fluids > >, the 4th phase in 2004) disclose a kind of without fluorescence environment-friendly type anti-sloughing agent---albino bitumen W-ASP, it is a kind of product of higher fatty alcohol after water-soluble processing, energy and water, clay generation emulsifying effect, under differing temps, can form tenacity particle, stop up the hole of stratum microfracture and permeable strata, play and fall leak-off, the effect of formation damage and protection hydrocarbon zone, compare with pitch, it is without fluorescence, can not disturb geological logging.But the concrete component without fluorescence albino bitumen anti-sloughing agent used is not all disclosed in these documents, also not mentioned its concrete preparation method, those skilled in the art can not know and determine the composition without fluorescence albino bitumen used on the open basis of these prior aries.
CN103013461A discloses albino bitumen and preparation method thereof for a kind of drilling fluid, prepared by the raw material by following weight part: 40 parts～50 parts, paraffin, 1 part～2 parts of alkylphenol polyoxyethylene, 4 parts～5 parts of polyoxyethylene glycol, 4 parts～5 parts of polyacrylamides, 20 parts～30 parts of stearic acid, 20 parts～30 parts of light calcium carbonates.Its preparation method is: by proportioning, paraffin, alkylphenol polyoxyethylene, polyoxyethylene glycol, stearic acid are joined in reactor, reactor is warming up to after 70 ℃～100 ℃, and constant temperature stirs 20～40 minutes; After add polyacrylamide, constant temperature stirs 30 minutes; Finally evenly add light calcium carbonate, constant temperature stirs discharging after 0.5～2 hour, and mist projection granulating obtains albino bitumen.But the prior art products obtained therefrom softening temperature is lower, be generally less than 60 ℃, this is inapplicable when bore meeting prospect pit that bottom temperature is higher and exploitation well, and the product anti-calcium and anti-salt that this prior art obtains is indifferent, poor when boring while meeting saline bed shutoff caving-preventing characteristic.
Summary of the invention
An object of the present invention is to provide a kind of further improved anti-sloughing agent for petroleum drilling fluid, make it when thering is the drilling fluid of improvement mud cake, preventing the fundamental propertys such as hole collapse, reduce the pollution to environment, strengthen anti-calcium and anti-salt ability, in addition, expand its scope of application.
Another object of the present invention is to provide the preparation method of described anti-sloughing agent, its simple process, and prepared anti-sloughing agent has good performance.
Another object of the present invention is to provide the application of described anti-sloughing agent.
For reaching above-mentioned purpose, on the one hand, the invention provides a kind of method of anti-sloughing agent for drilling fluid of preparing, the method comprising the steps of:
Higher aliphatic acid, high-carbon fatty alcohol and polyvalent alcohol are mixed according to the weight ratio of 20～30:18～27:5～12 part, and at 70～105 ℃, stirring reaction is 5～7 hours, and products therefrom is drilling fluid anti-sloughing agent.
Except indicating especially, ratio described in the present invention and percentage composition are part by weight or percentage composition.
According to specific embodiment of the invention scheme, the drilling fluid of preparing of the present invention, with in the method for anti-sloughing agent,, can stir reaction system without particular requirement to stirring velocity, and stirring velocity is 50～120 revs/min conventionally.In addition, the reaction pressure of system is normal pressure.
According to specific embodiment of the invention scheme, described higher aliphatic acid comprises one or more in lauric acid, Palmiticacid, stearic acid.When described higher aliphatic acid comprises multiple in lauric acid, Palmiticacid, stearic acid, wherein, the part by weight of lauric acid and Palmiticacid is preferably 0.5～1.2:0.6～1.2; Palmiticacid and stearic part by weight are preferably 0.6～1.2:2.0～3.0; Lauric acid and stearic part by weight are preferably 0.5～1.2:2.0～3.0.Of the present invention one, more specifically in embodiment, described higher aliphatic acid comprises lauric acid, Palmiticacid and stearic acid, and three's dosage ratio is 0.5～1.2:0.6～1.2:2.0～3.0.
According to specific embodiment of the invention scheme, described high-carbon fatty alcohol comprises one or more in lauryl alcohol, soft lipidol, stearyl alcohol.When described high-carbon fatty alcohol comprises multiple in lauryl alcohol, soft lipidol, stearyl alcohol, wherein, the part by weight of lauryl alcohol and soft lipidol is preferably 1.0～1.5:0.9～1.4; The part by weight of lauryl alcohol and stearyl alcohol is preferably 1.0～1.5:2.0～3.5; The part by weight of soft lipidol and stearyl alcohol is preferably 0.9～1.4:2.0～3.5.Of the present invention one, more specifically in embodiment, described high-carbon fatty alcohol comprises lauryl alcohol, soft lipidol and stearyl alcohol, and three's dosage ratio is 1.0～1.5:0.9～1.4:2.0～3.5.
According to specific embodiment of the invention scheme, described polyvalent alcohol comprises one or more in ethylene glycol, glycerol.When described polyvalent alcohol comprises ethylene glycol and glycerol, the two dosage ratio is preferably 0.3～1.0:1.6～3.0.
According to specific embodiment of the invention scheme, the drilling fluid of preparing of the present invention, can be by suitably adjust the ratio of higher aliphatic acid, high-carbon fatty alcohol and polyvalent alcohol in described scope, suitably to adjust the water solubles and the oily molten thing of product with in the method for anti-sloughing agent.According to the preferred embodiments of the invention, preferably, the weight ratio of higher aliphatic acid, high-carbon fatty alcohol and polyvalent alcohol is 20～30:20～26:6～10; 24～28:20～26:6～10 more preferably.Can control the water solubles content of product in 50%～80% scope, oily molten thing content is in 40%～50% scope.
On the other hand, the present invention also provides a kind of drilling fluid anti-sloughing agent, and it prepares according to aforesaid method of the present invention.According to specific embodiment of the invention scheme, the product preparing according to aforesaid method of the present invention can be as required through suitably pulverizing and make powder or granular product.
According to preferred specific embodiments of the present invention, drilling fluid anti-sloughing agent of the present invention, its softening point range is 50～150 ℃, applicable to prospect pit and the exploitation well of different bottom temperatures.
According to preferred specific embodiments of the present invention, drilling fluid anti-sloughing agent of the present invention, its water solubles content 50%～80%, oily molten thing content 40%～50%.
On the other hand, the present invention also provides the application in preparation oil field drilling fluids of described anti-sloughing agent.The present invention also provides a kind of oil field drilling fluids, wherein contains anti-sloughing agent of the present invention, and the gross weight of drilling fluid of take is benchmark, and wherein the content of anti-sloughing agent is 1%～10%, is preferably 2%～5%.
Drilling fluid anti-sloughing agent of the present invention; for white, micro-yellow or yellow particle or powder; it adds after drilling fluid without sediment; without floating matter; system is even, can be applicable to prospect pit and exploitation well, can effectively improve drilling fluid mud cake; prevent hole collapse; and fluorescence grade is low, do not affect geological logging, anti-calcium and anti-salt ability is strong; in 20% salt solution sulphonated polymer mud, still there is good performance; and lifeless matter toxicity, environmentally safe, and the softening point range of product is wider; it is 50～150 ℃, applicable to prospect pit and the exploitation well of different bottom temperatures.
In sum, the invention provides a kind of without fluorescence albino bitumen as drilling fluid anti-sloughing agent, it is without fluorescence albino bitumen that the present invention names this drilling fluid anti-sloughing agent, it can be applicable to prospect pit and recovery well, can effectively improve drilling fluid mud cake, prevent hole collapse, compared with prior art, have that fluorescence grade is low, anti-calcium and anti-salt ability is strong, softening point range is wider, the advantages such as lifeless matter toxicity, environmentally safe.And this product has good reservoir protection performance and certain filtration capacity that falls, in various drilling fluids, do not carry sticky, do not carry and cutting, compatibleness is good.
Accompanying drawing explanation
Fig. 1 is added with the drilling liquid pressure of albino bitumen of the present invention and the graph of a relation of high temperature and high pre ssure filtration.
Embodiment
For technical characterictic of the present invention, object and beneficial effect being had more clearly, understand, now in conjunction with specific examples, technical scheme of the present invention is carried out to following detailed description, should understand these examples and only for the present invention is described, is not used in and limits the scope of the invention.
Embodiment 1
Get by weight 6 parts of 25 parts of lauric acid, 20 parts of lauryl alcohols, glycerol and join in reactor, be heated to 80 ℃, under agitation react 5 hours, the drilling fluid that makes the present embodiment with anti-sloughing agent without fluorescence albino bitumen.Stirring velocity, without impact, is generally 50～120 revs/min, and the reaction pressure of system is normal pressure, and following examples are identical, repeat no more.
Embodiment 2
Get by weight 8 parts of 26 parts of Palmiticacid, 25 parts of stearyl alcohol, ethylene glycol and join in reactor, be heated to 90 ℃, under agitation react 6 hours, the drilling fluid that makes the present embodiment with anti-sloughing agent without fluorescence albino bitumen.
Embodiment 3
Get by weight 4 parts of lauric acid, 6 parts of Palmiticacid, 17 parts of stearic acid, 22 parts of soft lipidols, 10 parts of ethylene glycol join in reactor, are heated to 85 ℃, under agitation react 6 hours, the drilling fluid that makes the present embodiment with anti-sloughing agent without fluorescence albino bitumen.
Embodiment 4
Get by weight 7 parts of 28 parts of lauric acid, 7 parts of lauryl alcohols, 6 parts of soft lipidols, 13 parts of stearyl alcohol, glycerol and join in reactor, be heated to 95 ℃, under agitation react 7 hours, the drilling fluid that makes the present embodiment with anti-sloughing agent without fluorescence albino bitumen.
Embodiment 5
Get by weight 8 parts of 24 parts of stearic acid, 26 parts of lauryl alcohols, 2 parts of ethylene glycol, glycerol and join in reactor, be heated to 75 ℃, under agitation react 7 hours, the drilling fluid that makes the present embodiment with anti-sloughing agent without fluorescence albino bitumen.
The various embodiments described above product is carried out to properties test, and result is as shown in table 1.
Table 1 embodiment product property indices test data
Note: EC
50---half-maximal effect concentration in bio-toxicity test.
Above-mentioned experimental data shows, the drilling fluid that adopts the present invention to make is used without fluorescence albino bitumen properties good, is well positioned to meet the use of all kinds of prospect pits and exploitation well.In above-mentioned performance index, oily molten thing and the water solubles are very crucial factors, and when oily molten thing is too high, the emulsifying property of product is poor, joins in drilling fluid and can cause the problems such as drilling fluid system exists floating matter, and system is inhomogeneous.Only have when oily molten thing and the two ratio of the water solubles are when appropriate, products obtained therefrom emulsifying property is better, could well play the anti-collapse effect of shutoff.
The various embodiments described above product is carried out to performance evaluation.
1. the shutoff caving-preventing characteristic of albino bitumen
(1) ability of high temperature and high pre ssure filtration falls in albino bitumen
Each embodiment product falls high temperature and high pre ssure filtration test result referring to table 2.
High temperature and high pre ssure filtration test result falls in table 2 embodiment product
| Drilling fluid system | High temperature and high pre ssure filtration (mL/30min) |
| Base slurry | 48.5 |
| Embodiment 1 sample slurry | 15.2 |
| Embodiment 2 sample slurries | 14.6 |
| Embodiment 3 sample slurries | 9.6 |
| Embodiment 4 sample slurries | 8.8 |
| Embodiment 5 sample slurries | 10.2 |
Note: base slurry is that 4% wilkinite+2% is evaluated soil+2%FCLS; Sample slurry is base slurry+2% albino bitumen
FCLS is commercially available fluid loss additive for boring fluid
High temperature and high pre ssure filtration test condition: temperature is 150 ℃, pressure difference is 3.5MPa
What as can be seen here, the present invention made can effectively reduce the high temperature and high pre ssure filtration of drilling fluid without fluorescence albino bitumen.
(2) be added with the relation of drilling liquid pressure and the high temperature and high pre ssure filtration of albino bitumen
Sample slurry: 4% wilkinite+2% is evaluated soil+2%FCLS+2% albino bitumen
Be added with the drilling liquid pressure of albino bitumen and the relation of high temperature and high pre ssure filtration as shown in Figure 1.
As can be seen from Figure, along with the rising of pressure, the high temperature and high pre ssure filtration of drilling fluid has decline by a relatively large margin.Illustrate that the drilling fluid that is added with albino bitumen can form the good compressibility mud cake of toughness under elevated pressures, shutoff caving-preventing ability is stronger.
2. the performance evaluation of albino bitumen in various drilling fluids
(1) performance of albino bitumen in wilkinite drilling fluid
The performance of each embodiment product in wilkinite drilling fluid is referring to table 3.
The performance of table 3 embodiment product in wilkinite drilling fluid
| Drilling fluid system | ρ(g/cm 3) | AV(mPa·S) | PV(mPa·S) | YP(Pa) | FL(mL/30min) |
| Base slurry | 1.060 | 15.0 | 7.0 | 8.0 | 18.0 |
| Embodiment 1 sample slurry | 1.060 | 14.0 | 7.0 | 7.0 | 10.5 |
| Embodiment 2 sample slurries | 1.061 | 13.5 | 7.0 | 6.5 | 10.2 |
| Embodiment 3 sample slurries | 1.060 | 13.5 | 6.0 | 7.5 | 9.0 |
| Embodiment 4 sample slurries | 1.062 | 13.0 | 6.0 | 7.0 | 8.6 |
| Embodiment 5 sample slurries | 1.063 | 13.5 | 6.0 | 7.5 | 9.2 |
Note: base slurry is 6% wilkinite drilling fluid; Sample slurry is base slurry+2% albino bitumen
The density of ρ---drilling fluid; The apparent viscosity of AV---drilling fluid; The plastic viscosity of PV---drilling fluid; The yield value of YP---drilling fluid; Press filtration vector in the normal temperature of FL---drilling fluid.
(2) performance of albino bitumen in polymer drilling fluid
The performance of each embodiment product in polymer drilling fluid is referring to table 4.
The performance of table 4 embodiment product in polymer drilling fluid
| Drilling fluid system | ρ(g/cm 3) | AV(mPa·S) | PV(mPa·S) | YP(Pa) | FL(mL/30min) |
| Base slurry | 1.050 | 18.0 | 10.0 | 8.0 | 7.0 |
| Embodiment 1 sample slurry | 1.050 | 14.5 | 9.0 | 5.5 | 4.0 |
| Embodiment 2 sample slurries | 1.050 | 14.5 | 9.0 | 5.5 | 3.8 |
| Embodiment 3 sample slurries | 1.053 | 15.0 | 9.0 | 6.0 | 3.0 |
| Embodiment 4 sample slurries | 1.052 | 14.0 | 8.0 | 6.0 | 2.8 |
| Embodiment 5 sample slurries | 1.050 | 15.5 | 9.0 | 6.5 | 3.2 |
Note: base slurry is 4% wilkinite+0.3%FA367+0.5%NPAN
Strong coated inhibitor for the commercially available drilling fluid of FA367---
The commercially available fluid loss additive for boring fluid of NPAN---.
(3) performance of albino bitumen in 20% salt solution sulphonated polymer mud
The performance of each embodiment product in 20% salt solution sulphonated polymer mud is referring to table 5.
The performance of table 5 embodiment product in 20% salt solution sulphonated polymer mud
| Drilling fluid system | ρ(g/cm 3) | AV(mPa·S) | PV(mPa·S) | YP(Pa) | FL(mL/30min) |
| Base slurry | 1.155 | 36.5 | 12.0 | 24.5 | 12.0 |
| Embodiment 1 sample slurry | 1.155 | 24.5 | 10.0 | 14.5 | 7.0 |
| Embodiment 2 sample slurries | 1.155 | 25.0 | 10.0 | 15.0 | 6.8 |
| Embodiment 3 sample slurries | 1.156 | 25.5 | 10.0 | 15.5 | 6.0 |
| Embodiment 4 sample slurries | 1.156 | 26.0 | 11.0 | 15.0 | 5.8 |
| Embodiment 5 sample slurries | 1.155 | 24.5 | 9.0 | 15.5 | 6.2 |
Note: base slurry is 4% wilkinite+0.3%FA367+0.5%NPAN+2%SPNH+20%NaCl
The commercially available fluid loss additive for boring fluid of SPNH---.
(4) performance of albino bitumen in 2% gypsum sulphonated polymer mud
The performance of each embodiment product in 2% gypsum sulphonated polymer mud is referring to table 6.
The performance of table 6 embodiment product in 2% gypsum sulphonated polymer mud
| Drilling fluid system | ρ(g/cm 3) | AV(mPa·S) | PV(mPa·S) | YP(Pa) | FL(mL/30min) |
| Base slurry | 1.150 | 30.0 | 10.0 | 20.0 | 14.0 |
| Embodiment 1 sample slurry | 1.150 | 21.5 | 9.0 | 12.5 | 7.2 |
| Embodiment 2 sample slurries | 1.150 | 21.0 | 9.0 | 12.0 | 7.0 |
| Embodiment 3 sample slurries | 1.153 | 21.5 | 10.0 | 11.5 | 6.2 |
| Embodiment 4 sample slurries | 1.152 | 21.0 | 8.0 | 13.0 | 6.0 |
| Embodiment 5 sample slurries | 1.150 | 22.0 | 10.0 | 12.0 | 6.2 |
Note: base slurry is 4% wilkinite+0.3%FA367+0.5%NPAN+2%SPNH+2% gypsum.
From above-mentioned several forms, data can be found out, adopt drilling fluid that the present invention makes to use without fluorescence albino bitumen and can be applicable in various drilling fluids, do not carry stickyly, do not carry and cutting, and compatibleness is good, and anti-calcium and anti-salt ability is strong.
3. the environmental-protecting performance evaluation of albino bitumen
Each embodiment product bio-toxicity analytical results is referring to table 7.
Table 7 embodiment product bio-toxicity analysis report
Note: sample slurry is the 3% albino bitumen aqueous solution.
The oppossum shrimp bio-toxicity grade scale of confirming with reference to American National Environmental Protection Agency, the above results shows, the EC without fluorescence albino bitumen product that adopts the present invention to make
50value is greater than 30000mg/L, can reach in the world generally acknowledged suggestion emission standard.
Claims (10)
1. prepare a method for anti-sloughing agent for drilling fluid, the method comprising the steps of:
Higher aliphatic acid, high-carbon fatty alcohol and polyvalent alcohol are mixed according to the weight ratio of 20～30:18～27:5～12 part, and at 70～105 ℃, stirring reaction is 5～7 hours, and products therefrom is drilling fluid anti-sloughing agent.
2. method according to claim 1, wherein, described higher aliphatic acid comprises one or more in lauric acid, Palmiticacid, stearic acid; Preferably, described higher aliphatic acid comprises lauric acid, Palmiticacid and stearic acid, and lauric acid, Palmiticacid, stearic acid three part by weight are 0.5～1.2:0.6～1.2:2.0～3.0.
3. method according to claim 1, wherein, described high-carbon fatty alcohol comprises one or more in lauryl alcohol, soft lipidol, stearyl alcohol; Preferably, described high-carbon fatty alcohol comprises lauryl alcohol, soft lipidol and stearyl alcohol, and lauryl alcohol, soft lipidol, stearyl alcohol three's part by weight is 1.0～1.5:0.9～1.4:2.0～3.5.
4. method according to claim 1, wherein, described polyvalent alcohol comprises one or more in ethylene glycol, glycerol; Preferably, described polyvalent alcohol comprises ethylene glycol and glycerol, and the two part by weight of ethylene glycol, glycerol is 0.3～1.0:1.6～3.0.
5. method according to claim 1, wherein, the weight ratio of higher aliphatic acid, high-carbon fatty alcohol and polyvalent alcohol is 20～30:18～27:5～12; 24～28:20～26:6～10 more preferably.
6. a drilling fluid anti-sloughing agent, it is to prepare according to the method described in claim 1～5 any one.
7. drilling fluid anti-sloughing agent according to claim 6, its water solubles content 50%～80%, oily molten thing content 40%～50%.
8. drilling fluid anti-sloughing agent according to claim 6, its softening point range is 50～150 ℃.
9. the application of the anti-sloughing agent described in claim 6～8 any one in preparation oil field drilling fluids.
10. an oil field drilling fluids, wherein contains the anti-sloughing agent described in claim 6～8 any one, and the gross weight of drilling fluid of take is benchmark, and wherein the content of anti-sloughing agent is 1%～10%, is preferably 2%～5%.
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| CN111925778A (en) * | 2020-08-19 | 2020-11-13 | 安徽陆海石油助剂科技有限公司 | Anti-collapse and filtrate loss reducing agent white asphalt for drilling fluid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030106718A1 (en) * | 2000-02-11 | 2003-06-12 | Patel Arvind D. | Shale hydration inhibition agent and method of use |
| CN101240161A (en) * | 2008-03-11 | 2008-08-13 | 中国石油大学(华东) | Lubricating collapse-resisting agent for drilling fluid and preparation method thereof |
| CN101812288A (en) * | 2010-04-16 | 2010-08-25 | 新乡市振华钻井液材料有限公司 | Inhibiting and anti-sloughing agent for drilling fluid |
| CN101855312A (en) * | 2007-09-14 | 2010-10-06 | 埃默里油脂化学有限公司 | Additives for water-based drilling fluids |
| CN102676141A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Deformable plugging and anti-sloughing agent for drilling fluid |
| CN103013461A (en) * | 2012-12-27 | 2013-04-03 | 河北华运鸿业化工有限公司 | White asphalt for drilling fluid and method for preparing white asphalt for drilling fluid |
-
2014
- 2014-08-19 CN CN201410409843.7A patent/CN104194743B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030106718A1 (en) * | 2000-02-11 | 2003-06-12 | Patel Arvind D. | Shale hydration inhibition agent and method of use |
| CN101855312A (en) * | 2007-09-14 | 2010-10-06 | 埃默里油脂化学有限公司 | Additives for water-based drilling fluids |
| CN101240161A (en) * | 2008-03-11 | 2008-08-13 | 中国石油大学(华东) | Lubricating collapse-resisting agent for drilling fluid and preparation method thereof |
| CN101812288A (en) * | 2010-04-16 | 2010-08-25 | 新乡市振华钻井液材料有限公司 | Inhibiting and anti-sloughing agent for drilling fluid |
| CN102676141A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Deformable plugging and anti-sloughing agent for drilling fluid |
| CN103013461A (en) * | 2012-12-27 | 2013-04-03 | 河北华运鸿业化工有限公司 | White asphalt for drilling fluid and method for preparing white asphalt for drilling fluid |
Non-Patent Citations (1)
| Title |
|---|
| 柏红梅: ""无荧光防塌剂白沥青W-ASP的评价与应用"", 《钻井液与完井液》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925778A (en) * | 2020-08-19 | 2020-11-13 | 安徽陆海石油助剂科技有限公司 | Anti-collapse and filtrate loss reducing agent white asphalt for drilling fluid |
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|---|---|
| CN104194743B (en) | 2015-06-10 |
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