CN107841298A - A kind of preparation method of drilling fluid polyamides amine inhibitors - Google Patents
A kind of preparation method of drilling fluid polyamides amine inhibitors Download PDFInfo
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- CN107841298A CN107841298A CN201711076888.7A CN201711076888A CN107841298A CN 107841298 A CN107841298 A CN 107841298A CN 201711076888 A CN201711076888 A CN 201711076888A CN 107841298 A CN107841298 A CN 107841298A
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- drilling fluid
- polyamides amine
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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
- 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
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- General Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
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Abstract
A kind of preparation method the invention discloses drilling fluid with polyamides amine inhibitors, its step are as follows：A, it is 0.5 ~ 2 in molar ratio by substance A and substance B：1 is dosed to reactor, is heated to 60 DEG C, stirs 30min, melts completely to material, and be well mixed；B, under conditions of nitrogen protection, 5 ~ 8h of insulation reaction, goes out moisture at 150 ~ 180 DEG C；C, after reaction terminates, reactant is cooled to less than 30 DEG C, it is final product to obtain yellow or brown color thick liquid；Described substance A is the mixture of dimeric dibasic acid, trimer acid or both；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 the inhibition of drilling fluid system turns into probing water
The key on quick property stratum.Meanwhile as the shale gas well scope drilled at present constantly expands, quantity is on the increase, wellbore fluid
The inhibition of system becomes a key factor of site safety drilling well.
Conventional water-base drilling fluid inhibitor is mainly sylvite, ammonium salt and amine（Ammonium）Birds of the same feather flock together compound inhibitors, although tool
There is certain inhibition, but it is limited for mud stone scattered by force, inhibition.And in actual application, if can not be high
Effect suppresses the scattered of mud stone, the surface of clay after disperseing can rapid adsorption inhibitor, under causing the effective content of inhibitor rapid
Drop, so as to cause the rejection ability of drilling fluid to decline rapidly.
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 a kind of drilling fluid polyamides amine inhibitors, it is characterised in that step is as follows：
A, it is 0.5 ~ 2 in molar ratio by substance A and substance B：1 is dosed to reactor, is heated to 60 DEG C, 30min is stirred, to material
Melt completely, and be well mixed；
B, under conditions of nitrogen protection, 5 ~ 8h of insulation reaction, goes out moisture at 150 ~ 180 DEG C；
C, after reaction terminates, reactant is cooled to less than 30 DEG C, it is final product to obtain yellow or brown color thick liquid；
Described substance A is the mixture of dimeric dibasic acid, trimer acid or both；
Described substance B is the methylol ethylenediamine, AEEA, one kind in hydroxypropylethylendiamine diamine or two of more amines
Kind.
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℃）Effectively 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, the polyamides amine inhibitors market application foreground is wide, has good economy
Benefit.
Embodiment
Embodiment 1：
A, by dimeric dibasic acid A and AEEA B in molar ratio 1：1 feeds intake, and is heated to 60 DEG C, stirs 30min, complete to material
Melt, and be well mixed.
B, under conditions of nitrogen protection, the h of insulation reaction 7 at 170 DEG C, and constantly moisture is gone out.
C, after reaction terminates, reactant is cooled to less than 30 DEG C, it is final product to obtain yellow viscous liquid.
Embodiment 2：
A, by trimer acid A and methylol ethylenediamine B in molar ratio 0.75：1 feeds intake, and is heated to 60 DEG C, 30min is stirred, to material
Melt completely, and be well mixed.
B, under conditions of nitrogen protection, the h of insulation reaction 8 at 180 DEG C, and constantly moisture is gone out.
C, after reaction terminates, reactant is cooled to less than 30 DEG C, it is final product to obtain brown color thick liquid.
Embodiment 3：
A, by dimeric dibasic acid A and trimer acid A（1:1）Mixture and AEEA B in molar ratio 1：1.25 feed intake, and are heated to
60 DEG C, 30min is stirred, is melted completely to material, and be well mixed.
B, under conditions of nitrogen protection, the insulation reaction 6h at 180 DEG C, and constantly moisture is gone out.
C, after reaction terminates, reactant is cooled to less than 30 DEG C, it is final product to obtain brown color thick 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 | 52 | 62 | 65 | 67.5 |
| PV/ mPa.s | 47 | 54 | 56 | 57 |
| YP/Pa | 5 | 8 | 9 | 10.5 |
| Gel/(10’/10”) | 1.5/4.5 | 2.5/6.5 | 3.5/8.5 | 4/9.5 |
| FL/HPHT | 8.6 | 9.2 | 8.0 | 9.6 |
| Rolling rate of recovery, % | 77.42 | 93.21 | 94.52 | 93.18 |
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 (3)
1. a kind of drilling fluid preparation method of polyamides amine inhibitors, it is characterised in that step is as follows：
A, it is 0.5 ~ 2 in molar ratio by substance A and substance B：1 is dosed to reactor, is heated to 60 DEG C, 30min is stirred, to material
Melt completely, and be well mixed；
B, under conditions of nitrogen protection, 5 ~ 8h of insulation reaction, goes out moisture at 150 ~ 180 DEG C；
C, after reaction terminates, reactant is cooled to less than 30 DEG C, it is final product to obtain yellow or brown color thick liquid.
A kind of 2. preparation method of drilling fluid polyamides amine inhibitors according to claim 1, it is characterised in that：Described
Substance A is the mixture of dimeric dibasic acid, trimer acid or both.
A kind of 3. preparation method of drilling fluid polyamides amine inhibitors according to claim 1, it is characterised in that：Described
Substance B is one or both of methylol ethylenediamine, AEEA, hydroxypropylethylendiamine diamine of more amines.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711076888.7A CN107841298A (en) | 2017-11-06 | 2017-11-06 | A kind of preparation method of drilling fluid polyamides amine inhibitors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440600A (en) * | 2020-03-31 | 2020-07-24 | 安徽中科日升科技有限公司 | Lubrication inhibitor for drilling fluid and preparation method thereof |
| IT202100016916A1 (en) * | 2021-06-28 | 2022-12-28 | Lamberti Spa | EMULSIFIERS |
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|---|---|---|---|---|
| US5593953A (en) * | 1995-04-26 | 1997-01-14 | The Lubrizol Corporation | Friction modifier for oil-based (invert) well drilling fluids and methods of using the same |
| 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 |
| CN104231260A (en) * | 2014-08-11 | 2014-12-24 | 安庆昊业树脂材料科技有限公司 | Low-molecular-weight polyamide resin polyhydric alcohol and preparation method thereof |
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2017
- 2017-11-06 CN CN201711076888.7A patent/CN107841298A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593953A (en) * | 1995-04-26 | 1997-01-14 | The Lubrizol Corporation | Friction modifier for oil-based (invert) well drilling fluids and methods of using the same |
| 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 |
| CN104231260A (en) * | 2014-08-11 | 2014-12-24 | 安庆昊业树脂材料科技有限公司 | Low-molecular-weight polyamide resin polyhydric alcohol and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨勇平 等: "油基增黏剂的研制及在榆林气田下古水平井的应用", 《钻井液与完井液》 * |
| 马英杰: "低聚酰胺-胺的合成及其抑制粘土膨胀性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440600A (en) * | 2020-03-31 | 2020-07-24 | 安徽中科日升科技有限公司 | Lubrication inhibitor for drilling fluid and preparation method thereof |
| IT202100016916A1 (en) * | 2021-06-28 | 2022-12-28 | Lamberti Spa | EMULSIFIERS |
| WO2023274976A1 (en) * | 2021-06-28 | 2023-01-05 | Lamberti Spa | Emulsion stabilizing agents |
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Application publication date: 20180327 |