CN107699215A - The preparation method of drilling fluid polyamides amine inhibitors - Google Patents
The preparation method of drilling fluid polyamides amine inhibitors Download PDFInfo
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- CN107699215A CN107699215A CN201711076887.2A CN201711076887A CN107699215A CN 107699215 A CN107699215 A CN 107699215A CN 201711076887 A CN201711076887 A CN 201711076887A CN 107699215 A CN107699215 A CN 107699215A
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- drilling fluid
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- polyamides amine
- amine inhibitors
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
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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
Abstract
Preparation method the invention discloses drilling fluid with polyamides amine inhibitors, its step are as follows：A, substance A is dissolved in alcoholic solvent, then substance B is added in the alcoholic solution of substance A, A and B mass ratio are 1 ~ 1.5：1, reaction temperature is 45 ~ 70 DEG C, reacts 12 ~ 24h, obtains intermediate product；B, addition substance C and catalyst in intermediate product, C and A mass ratio are 0.5 ~ 1.2：1, catalyst amount is the 1% of substance A, is warming up to reflux temperature, reacts 4 ~ 12h at a reflux temperature；C, solvent alcohol is steamed, obtains product；The polyamides amine inhibitors prepared using this method have the characteristics that high temperature resistance, inhibition are notable, small to rheology impact, suitable for various water base drilling fluid systems.It can not only prevent water-sensitive formation clay mineral aquation from disperseing, borehole well instability problem caused by expansion, can also effectively stablize the rheological characteristic of drilling fluid system, avoid generation performance out of control.
Description
Technical field
The present invention relates to drilling fluid inhibitor technical field, specifically relates to a kind of drilling fluid polyamides amine inhibitors
Preparation method.
Background technology
When the water-sensitive stratas such as mud stone, shale are crept into using water-base drilling fluid, the easy hydration swelling of subterranean minerals, disperse,
The problems such as so as to cause borehole well instability, drilling fluid rheology unmanageable.So said in terms of drilling fluid, drilling fluid system
Inhibition turns into the key of probing water-sensitive strata.The inhibition of drilling fluid system become site safety drilling well one is important
Factor.
At present, main inhibitor has inorganic potassium salt, potassium salt, quaternary ammonium salt, organic amine and containing amine（Ammonium）Polymerization.This
Although a little inhibitor are with certain inhibition, in the mudstone stratum that reply disperses by force, often inhibition is effective, consumption
It is too fast, cause the inhibition deficiency of whole system, easily cause borehole well instability and drilling fluid rheology is difficult to control.Therefore,
Need badly and research and develop more efficient drilling fluid inhibitor.
Publication No. CN102504065A, publication date disclose a kind of brill for the Chinese patent literature on June 20th, 2012
Well liquid polyamine inhibitor and preparation method thereof；Initiator and acid-binding agent are placed in reactor, under normal pressure and nitrogen protection,
Sulfonyl agent is added dropwise into reactor, carries out sulphur esterification, the reaction time is 10~12 hours, and sulphur esterification temperature is 0~30
DEG C, reactant is filtered, filtrate is soluble in water, after static split-phase, a layer liquid is removed, vacuum distillation goes to remove water, and obtains end sulphur
Base ester compound；End sulfo group carboxylate is added drop-wise in the reactor equipped with aminating agent and precipitating reagent and carries out aminating reaction, reaction 2~
3 hours, amination temperature was 70~90 DEG C, and product is filtered, and is evaporated under reduced pressure desolvation, obtains polyamine inhibitor；The additive is fitted
It for a variety of water-base drilling fluids, can be good at controlling the aquation of mud shale to disperse, effectively reduce because shale hydration disperses
The problems such as drilling fluid brought thickens, property of drilling fluid deteriorates, to realize that safe and efficient drilling well provides certain guarantee.
But be the conventional inhibitor of representative due to limited sorption capacity using above-mentioned patent document, frequently result in high temperature
Lower generation desorption, so as to cause to lose inhibitory action under high temperature.So to solve the problems, such as the suppression of drilling fluid, it is necessary to research and develop
Specifically for the water-base drilling fluid high temperature resistance inhibitor of water-sensitive formation drilling well, effectively reduce borehole well instability and landwaste aquation disperseed,
Meet the technology needs of live water-sensitive strata high-quality and safety rapid drilling, improve exploration and development benefit.
The content of the invention
It is contemplated that the defects of present in above-mentioned prior art and deficiency, there is provided a kind of drilling fluid is pressed down with polyamide
The preparation method of preparation, the inhibitor prepared using this preparation method is good with conventional water base inorganic agent compatibility, to water base brill
Well liquid performance impact is small, and the rejection ability of energy efficient hardening water-base drilling fluid, reaches and suppresses water-sensitive formation mineral aquation point
Scattered effect, so as to reduce drilling cost, ensure drilling safety and speed.
The present invention is realized by using following technical proposals：
The preparation method of drilling fluid polyamides amine inhibitors, it is characterised in that step is as follows：
A, substance A is dissolved in alcoholic solvent, then substance B is added in the alcoholic solution of substance A, A and B mass ratio are 1 ~ 1.5：1,
Reaction temperature is 45 ~ 70 DEG C, reacts 12 ~ 24h, obtains intermediate product；
B, addition substance C and catalyst in intermediate product, C and A mass ratio are 0.5 ~ 1.2：1, catalyst amount is substance A
1%, be warming up to reflux temperature, at a reflux temperature react 4 ~ 12h；
C, solvent alcohol is steamed, obtains product；
Substance A is C10 ~ C18 saturations or undersaturated kiber alkyl amine；
Substance B is dimethyl maleate, diethyl maleate, maleic acid di-n-propyl ester, one kind in diisobutyl maleate or
Two kinds of mixtures；
Substance C is one or both of monoethanolamine, diethanol amine, N-hydroxyethyl-ethylenediamine mixture；
Catalyst is one kind in sodium hydroxide, potassium hydroxide, sodium methoxide, potassium methoxide, caustic alcohol, potassium ethoxide；
Alcoholic solvent criticizes propyl alcohol, isopropanol, n-butanol or the tert-butyl alcohol.
Compared with prior art, what the present invention was reached has the beneficial effect that：
By the checking of embodiment, it can learn that it has the following technical effect that：
1st, the polyamides amine inhibitors prepared using this method, can make mud shale landwaste rolling rate of recovery（150℃）Significantly improve, have
There is good inhibitory action, the rheological characteristic of drilling fluid system and the stabilization of leak-off wall building property can be kept；
2nd, the polyamides amine inhibitors and conventional treatment agent compatibility prepared using this method are good, to the overall performance shadow of drilling fluid
Ring less, drilling fluid rheology, leak-off wave making machine are substantially unaffected；
3rd, the polyamides amine inhibitors prepared using this method have good temperature resistance, and temperature resistance is up to 150 DEG C.
In summary, using this method prepare polyamides amine inhibitors have high temperature resistance, inhibition significantly, to rheological characteristic
The features such as small is influenceed, suitable for various water base drilling fluid systems.It can not only prevent that water-sensitive formation clay mineral aquation is scattered, swollen
It borehole well instability problem caused by swollen, can also effectively stablize the rheological characteristic of drilling fluid system, avoid generation performance out of control.In addition,
For the inhibitor in drilling fluid system, for dosage with safeguarding that dosage is small, expense is low, can significantly save drilling fluid cost.With multiple
The continuous expansion of drilling well scale under miscellaneous geological conditions, a kind of drilling fluid is wide with polyamides amine inhibitors market application foreground, has
Good economic benefit.
Embodiment
Embodiment 1：
Dodecyl primary amine is dissolved in isopropanol, then dimethyl maleate is added into alcoholic solution, makes it well mixed.
It is 50 DEG C to adjust temperature, reacts 20h, obtains intermediate product.
Monoethanolamine is added in intermediate product, sodium hydroxide is added and makees catalyst, be warming up to reflux temperature, react 12h.
Isopropanol is steamed, it is product to obtain yellow viscous liquid.
Embodiment 2：
Decyl primary amine is dissolved in isopropanol, then diethyl maleate is added into alcoholic solution, makes it well mixed.
It is 70 DEG C to adjust temperature, reacts 15h, obtains intermediate product.
Diethanol amine is added in intermediate product, potassium hydroxide is added and makees catalyst, be warming up to reflux temperature, react 12h.
Isopropanol is steamed, it is product to obtain yellow viscous liquid.
Embodiment 3：
Octadecyl primary amine is dissolved in the tert-butyl alcohol, then diisobutyl maleate is added into alcoholic solution, makes it well mixed.
It is 60 DEG C to adjust temperature, reacts 20h, obtains intermediate product.
N-hydroxyethyl-ethylenediamine is added in intermediate product, sodium hydroxide is added and makees catalyst, be warming up to reflux temperature, instead
Answer 12h.
The tert-butyl alcohol is steamed, it is product to obtain yellow viscous liquid.
Embodiment method of evaluating performance
1st, polyamides amine inhibitors rolling rate of recovery is tested
4 parts of 350mL distilled water are taken, wherein three parts of polyamides amine inhibitors for being separately added into 1%（Embodiment 1）, 7% conventional inhibitor
Potassium chloride and 40% conventional inhibitor potassium formate, in low-speed agitator（1000rpm/min）Upper stirring 10min.By four parts of liquid
Body is poured into ageing can, then is separately added into 50g mud shale landwaste.The rolling rate of recovery of four parts of liquid is determined at 150 DEG C, as a result
Such as table 2：
The polyamides amine inhibitors of table 1 contrast with other conventional inhibitor mud shale landwaste rolling rate of recoveries
From table 1, the landwaste rolling rate of recovery of clear water is only 15.64%, and the rolling rate of recovery of the potassium chloride of conventional inhibitor 7%
For 27.52%, 40% potassium formate is 58.42%.And 1% polyamides amine inhibitors are only added, landwaste rolling rate of recovery is 79.46%.It is real
Test result to show, polyamides amine inhibitors have the excellent ability for suppressing hydration of mud stone and disperseing under 150 DEG C of environment.
2nd, influence of the polyamides amine inhibitors to drilling fluid system combination property
Influence of the polyamides amine inhibitors of table 2 to drilling fluid system combination property
| System forms | Basic sulfonation system | Sulfonation system -1 | Sulfonation system -2 | Sulfonation system -3 |
| Bentonite, % | 2 | 2 | 2 | 2 |
| Embodiment 2#, % | 1 | 0.5 | 0 | |
| Embodiment 3#, % | 0 | 0.5 | 1 | |
| SMP-2,% | 4 | 4 | 4 | 4 |
| SPNH,% | 2 | 2 | 2 | 2 |
| RSTF,% | 2 | 2 | 2 | 2 |
| Anti-seize lubricant, % | 1 | 1 | 1 | 1 |
| Performance | 150 DEG C of aging 16h | 150 DEG C of aging 16h | 150 DEG C of aging 16h | 150 DEG C of aging 16h |
| Density, g/ml | 2.1 | 2.1 | 2.1 | 2.1 |
| AV/ mPa.s | 57 | 60 | 65 | 69 |
| PV/ mPa.s | 45 | 47 | 50 | 54 |
| YP/Pa | 12 | 13 | 15 | 14 |
| Gel/(10’/10”) | 2/5 | 2.5/8 | 3.5/8.5 | 4/10 |
| FL/HPHT | 7.6 | 8.0 | 8.0 | 9.4 |
| Rolling rate of recovery, % | 75.46 | 88.74 | 87.76 | 89.92 |
As can be seen from Table 2, after adding polyamides amine inhibitors in Common sulfonation system, rolling rate of recovery is significantly raised, indicates
Polyamides amine inhibitors have good inhibition, and the inhibition of drilling fluid can be substantially improved.With the stream of basic sulfonation system
Denaturation is compared with leak-off wave making machine, and after adding polyamides amine inhibitors, the leak-off wave making machine of drilling fluid system does not have significant change, and
Rheological characteristic slightly rises, but unobvious, illustrates that polyamides amine inhibitors influence on the rheological characteristic of drilling fluid system with leak-off wave making machine
Less, the inhibitor has good compatibility.
Claims (6)
1. the drilling fluid preparation method of polyamides amine inhibitors, it is characterised in that step is as follows：
A, substance A is dissolved in alcoholic solvent, then substance B is added in the alcoholic solution of substance A, A and B mass ratio are 1 ~ 1.5：1,
Reaction temperature is 45 ~ 70 DEG C, reacts 12 ~ 24h, obtains intermediate product；
B, addition substance C and catalyst in intermediate product, C and A mass ratio are 0.5 ~ 1.2：1, catalyst amount is substance A
1%, be warming up to reflux temperature, at a reflux temperature react 4 ~ 12h；
C, solvent alcohol is steamed, obtains product.
2. the drilling fluid according to claim 1 preparation method of polyamides amine inhibitors, it is characterised in that:Substance A is C10
~ C18 saturations or undersaturated kiber alkyl amine.
3. the drilling fluid according to claim 1 preparation method of polyamides amine inhibitors, it is characterised in that:Substance B is horse
Carry out one or both of dimethyl phthalate, diethyl maleate, maleic acid di-n-propyl ester, diisobutyl maleate mixture.
4. the drilling fluid according to claim 1 preparation method of polyamides amine inhibitors, it is characterised in that:Substance C is one
One or both of monoethanolamine, diethanol amine, N-hydroxyethyl-ethylenediamine mixture.
5. the drilling fluid according to claim 1 preparation method of polyamides amine inhibitors, it is characterised in that:Catalyst is hydrogen
One kind in sodium oxide molybdena, potassium hydroxide, sodium methoxide, potassium methoxide, caustic alcohol, potassium ethoxide.
6. the drilling fluid according to claim 1 preparation method of polyamides amine inhibitors, it is characterised in that:Alcoholic solvent is criticized
Propyl alcohol, isopropanol, n-butanol or the tert-butyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711076887.2A CN107699215A (en) | 2017-11-06 | 2017-11-06 | The preparation method of drilling fluid polyamides amine inhibitors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711076887.2A CN107699215A (en) | 2017-11-06 | 2017-11-06 | The preparation method of drilling fluid polyamides amine inhibitors |
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| CN107699215A true CN107699215A (en) | 2018-02-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780381A (en) * | 2009-10-31 | 2010-07-21 | 大庆卓越化工科技有限公司 | N-alkylasparagine surfactant and preparation method thereof |
| CN103492523A (en) * | 2011-05-10 | 2014-01-01 | 海名斯精细化工公司 | Non-aqueous drilling additive useful to produce a flat temperature-rheology profile |
| CN103917623A (en) * | 2011-07-28 | 2014-07-09 | 巴斯夫欧洲公司 | Use of hyperbranched polylysine as shale inhibitor |
| CN106520085A (en) * | 2016-11-03 | 2017-03-22 | 中国石油大学(华东) | Dendritic polyether clay shale inhibitor and preparation method and application thereof |
-
2017
- 2017-11-06 CN CN201711076887.2A patent/CN107699215A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780381A (en) * | 2009-10-31 | 2010-07-21 | 大庆卓越化工科技有限公司 | N-alkylasparagine surfactant and preparation method thereof |
| CN103492523A (en) * | 2011-05-10 | 2014-01-01 | 海名斯精细化工公司 | Non-aqueous drilling additive useful to produce a flat temperature-rheology profile |
| CN103917623A (en) * | 2011-07-28 | 2014-07-09 | 巴斯夫欧洲公司 | Use of hyperbranched polylysine as shale inhibitor |
| CN106520085A (en) * | 2016-11-03 | 2017-03-22 | 中国石油大学(华东) | Dendritic polyether clay shale inhibitor and preparation method and application thereof |
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Application publication date: 20180216 |