CN101531888B - Shale-control agent for drilling fluid and preparation method thereof - Google Patents
Shale-control agent for drilling fluid and preparation method thereof Download PDFInfo
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- CN101531888B CN101531888B CN2009100610571A CN200910061057A CN101531888B CN 101531888 B CN101531888 B CN 101531888B CN 2009100610571 A CN2009100610571 A CN 2009100610571A CN 200910061057 A CN200910061057 A CN 200910061057A CN 101531888 B CN101531888 B CN 101531888B
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- shale
- parts
- acid
- drilling fluid
- control agent
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Abstract
The invention discloses a shale-control agent for drilling fluid and a preparation method thereof. The shale-control agent for drilling fluid is composed of water, polyethenoxy ether diamine, protonic acid and a qualify modifier. The protonic acid is one of phosphoric acid, sulphamic acid, acetic acid, hydrochloric acid, citric acid and butyric acid or a mixture of any two thereof. The quality modifier is any one of ethanol, ethylene glycol, propanetriol and diethylene glycol or a mixture of any two thereof. The preparation method comprises the steps of adding 20-30 parts of polyethenoxy ether diamine into 10-50 parts of water, slowly dripping 5-20 parts of protonic acid while agitating, after finishing dripping, agitating and reacting for 2 hours at 70 DEG C, and finally adding 10-25 parts of quality modifiers, uniformly agitating to obtain the shale-control agent preparation product for drilling fluid. The shale-control agent preparation product can effectively inhibit hydrous expansion of clay with good effect, and is mainly used for preparing high-performance water-base drilling fluid and suitable for drilling well in active sludge shale stratum.
Description
Technical field
The present invention relates to water-base drilling fluid treatment agent and preparation method thereof, refer more particularly to shale-control agent for drilling fluid at active mud shale stratum drilling well and preparation method thereof.
Technical background
At present, domestic shale-control agent for drilling fluid commonly used mainly contains pitch class, polymer class and inorganic salts etc., and these shale control agents all come with some shortcomings separately: be unfavorable for protecting environment as the pitch class; Silicate can make the system rheological be difficult to regulation and control; Kai Fa glucosides class, polyethylene glycols in recent years can not solve the drilling problem of active mud shale, needs usually to adopt oil base drilling fluid, is unfavorable for that environment protection and drilling cost reduce.In recent years, high performance water-based drilling fluid (HPWBM), it is wider to claim amido drilling fluid (Amine based mud) to use abroad again.High performance water-based drilling fluid mainly is made up of shale control agent, coating agent, dispersion agent and fluid loss agent, its essence is to have used a kind of novel amine based compound.This amino-complex has higher inhibition ability and anti-mud drum ability, compliance with environmental protection requirements, and have filming function, and its effect and oil base drilling fluid are suitable, and this drilling fluid system can be thought alternative oil base drilling fluid and the higher water-base drilling fluid of a class performance that can creep into safely again.And domestic research in this respect is less.
Summary of the invention
The object of the present invention is to provide a kind of at active ooze shale shale-control agent for drilling fluid and preparation method thereof, to substitute oil base drilling fluid.
For achieving the above object, technical scheme of the present invention is:
Being used for shale-control agent for drilling fluid is made of following parts by weight of component:
20～60 parts in water
20～30 parts of polyoxyethylene ether diamines
5～20 parts of protonic acids
10～25 parts of quality properties-correcting agent
Wherein: the polyoxyethylene ether diamine:
Polyoxyethylene ether diamine general molecular formula is H
2N-R
1-{ OR
2}
x-NH
2, R in the general molecular formula wherein
1And R
2Be to have 1 to 10 different carbon atom number or identical carbonatoms purpose alkylidene group, x is from 1 to 30 value.
Protonic acid: protonic acid is a kind of or wherein any two kinds mixture in phosphoric acid, thionamic acid, acetate, hydrochloric acid, formic acid, citric acid, the butyric acid, and wherein the ratio of two kinds of mixtures is (parts by weight of component):
40～60∶60～40。
Quality properties-correcting agent:
Quality properties-correcting agent is a kind of or wherein any two kinds mixture in ethanol, ethylene glycol, glycerol, the glycol ether, and wherein the ratio of two kinds of mixtures is (parts by weight of component): 30～70: 70～30.
The preparation method of shale-control agent for drilling fluid:
Add 20～30 parts of polyoxyethylene ether diamines in 20～60 parts of water, slow Dropwise 5～20 parts of protonic acids under agitation then add the back 70 ℃ of following stirring reactions 2 hours, add 10～25 parts of quality properties-correcting agent at last, and stirring gets final product.
Positively effect of the present invention is:
(1), shale control agent and drilling fluid have excellent compatibility;
(2), shale control agent has superpower shale and suppresses ability, heat is rolled back yield greater than 90%;
(3), be host with the shale control agent, the high-performance drilling fluid of structure has good rejection, heat-resisting property, reservoir protection performance and environment protection performance.
Embodiment
The present invention is further illustrated below in conjunction with embodiment
Example 1
Accurately take by weighing 80 gram H
2N-R
1-{ OR
2}
x-NH
2, R wherein
1And R
2All be the alkylidene group with 5 carbon atoms, the value of x is 8, pours in the there-necked flask, taking by weighing 150 gram water pours in the there-necked flask, start agitator and begin to stir, take by weighing 20 gram 36% acetate and 85% phosphate mixture (press mass ratio mixes at 1: 1), mixing acid is inserted in the addition funnel, slowly be added drop-wise to mixing acid in the there-necked flask, after dripping, reactant was reacted 2 hours in the time of 70 ℃, add 40 gram glycerol, discharging after stirring is product.
Example 2
Accurately take by weighing 90 gram H
2N-R
1-{ OR
2}
x-NH
2, R wherein
1And R
2All be the alkylidene group with 6 carbon atoms, the value of x is 6, pours in the there-necked flask, taking by weighing 200 gram water pours in the there-necked flask, start agitator and begin to stir, take by weighing 30 grams, 85% phosphoric acid, phosphoric acid is inserted in the addition funnel, slowly be added drop-wise to phosphoric acid in the there-necked flask, after dripping, reactant was reacted 2 hours in the time of 70 ℃, add 50 gram ethylene glycol, discharging after stirring is product.
Example 3
Accurately take by weighing 130 gram H
2N-R
1-{ OR
2}
x-NH
2, R wherein
1And R
2It all is alkylidene group with 4 carbon atoms, the value of x is 4, pours in the there-necked flask, takes by weighing 250 gram water and pours in the there-necked flask, starting agitator begins to stir, take by weighing 45 the gram citric acids, citric acid is slowly joined in the there-necked flask, treat that citric acid adds after, reactant was reacted 2 hours in the time of 70 ℃, add 65 gram glycol ethers, the back discharging that stirs is product.
The case test result:
The method that adopts base to starch the hot yield of rolling back is estimated the rejection of product in its embodiment, gets drilling cuttings and crosses the 6-10 mesh sieve, dries to constant weight, take by weighing 50g, join in the 350mL clear water, behind 100 ℃ of down aging 16h, cross 40 mesh sieves, tail under 105 ℃ and dry, weigh, be designated as m to constant weight.Calculate heat and roll the back cuttings recovery, effect such as following table:
| Project | Boiling hot rate of recovery % |
| Blank base slurry | 45 |
| Base slurry+2% example 1 | 93 |
| Base slurry+2% example 2 | 95 |
| Base slurry+2% example 3 | 92.7 |
By data in the table as can be seen: shale-control agent for drilling fluid of the present invention has superpower shale and suppresses ability.
Claims (2)
1. a shale-control agent for drilling fluid is characterized in that, shale-control agent for drilling fluid is made of following weight part component:
20～60 parts in water
Polyoxyethylene ether diamine 20～30
5～20 parts of protonic acids
10～25 parts of quality properties-correcting agent
Wherein: polyoxyethylene ether diamine, general molecular formula are H
2N-R
1-{ OR
2}
X-NH
2, R in the general molecular formula
1And R
2Be to have 4 to 6 different carbon atom numbers or identical carbonatoms purpose alkylidene group, x is from 4 to 8 value, protonic acid is a kind of or wherein any two kinds mixture in phosphoric acid, thionamic acid, acetate, hydrochloric acid, citric acid, the butyric acid, wherein the weight part component ratio of two kinds of mixtures is: 40～60: 60～40, quality properties-correcting agent is a kind of or wherein any two kinds mixture in ethanol, ethylene glycol, glycerol, the glycol ether, and wherein the weight part component ratio of two kinds of mixtures is: 30～70: 70～30.
2. shale-control agent for drilling fluid according to claim 1, it is characterized in that: the preparation method of shale-control agent for drilling fluid adds 20～30 parts of polyoxyethylene ether diamines in 20～60 parts of water, under agitation slow then Dropwise 5～20 parts of protonic acids, add the back 70 ℃ of following stirring reactions 2 hours, add 10～25 parts of quality properties-correcting agent at last, stirring gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100610571A CN101531888B (en) | 2009-03-05 | 2009-03-05 | Shale-control agent for drilling fluid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100610571A CN101531888B (en) | 2009-03-05 | 2009-03-05 | Shale-control agent for drilling fluid and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101531888A CN101531888A (en) | 2009-09-16 |
| CN101531888B true CN101531888B (en) | 2010-12-29 |
Family
ID=41102757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100610571A Expired - Fee Related CN101531888B (en) | 2009-03-05 | 2009-03-05 | Shale-control agent for drilling fluid and preparation method thereof |
Country Status (1)
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864283B (en) * | 2009-12-11 | 2012-12-26 | 中国石油集团钻井工程技术研究院 | Water-based drilling fluid composition containing amine compound |
| CN102250595B (en) * | 2011-05-19 | 2013-09-04 | 中国石油天然气集团公司 | Drilling fluid used for active mud shale drilling |
| CN102391842B (en) * | 2011-09-28 | 2014-05-21 | 中国石油化工集团公司 | Polyamine drilling fluid |
| CN102424746B (en) * | 2011-09-28 | 2013-08-28 | 中国石油化工集团公司 | Strongly inhibitory solid-free polyamine-formate drilling fluid system |
| CN102408883B (en) * | 2011-12-01 | 2013-05-01 | 中国石油集团渤海钻探工程有限公司 | Preparation method of high-temperature-resistant polyamine salt inhibitor for drilling fluid |
| CN103087690B (en) * | 2013-02-22 | 2014-02-12 | 蒋官澄 | Application of aromatic amine hydrochloride serving as shale inhibitor for drilling fluid |
| CN103113861B (en) * | 2013-03-04 | 2015-03-11 | 中国海洋石油总公司 | Suppressant for drilling fluid and preparation method thereof |
| CN104178093B (en) * | 2013-05-21 | 2016-12-28 | 金川集团股份有限公司 | The preparation method of the lubrication drilling fluid of anti-high hardness |
| CN103497744B (en) * | 2013-10-23 | 2015-09-30 | 四川仁智油田技术服务股份有限公司 | A kind of preparation method of drilling fluid shale expansion inhibitor and the product of preparation thereof |
| CN105623636B (en) * | 2014-10-27 | 2019-05-07 | 中国石油天然气股份有限公司 | Swelling-resistant shrinking and swelling agent, preparation method and its application |
| CN106281263B (en) * | 2016-08-08 | 2018-11-09 | 西南石油大学 | A kind of Ultra-low molecular weight intercalation inhibitor and preparation method thereof |
| CN111763504B (en) * | 2020-07-22 | 2022-03-22 | 西南石油大学 | Environment-friendly temperature-resistant ether amine shale inhibitor and water-based drilling fluid prepared from same |
| CN113416525A (en) * | 2021-06-22 | 2021-09-21 | 西南石油大学 | Environment-friendly polyether tertiary amine as shale surface hydration inhibitor |
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|---|---|
| CN101531888A (en) | 2009-09-16 |
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