CN109735313A - Petroleum drilling and mining for clay interface is stabilizing agent specially used and preparation method thereof - Google Patents
Petroleum drilling and mining for clay interface is stabilizing agent specially used and preparation method thereof Download PDFInfo
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- CN109735313A CN109735313A CN201910151402.4A CN201910151402A CN109735313A CN 109735313 A CN109735313 A CN 109735313A CN 201910151402 A CN201910151402 A CN 201910151402A CN 109735313 A CN109735313 A CN 109735313A
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Abstract
The present invention relates to oil drilling chemical material technical fields, it is stabilizing agent specially used and preparation method thereof in particular for the petroleum drilling and mining at clay interface, the clay interface stability agent is aminated compounds, small cation inhibitor, rock coating agent, nonionic surfactant, anionic surfactant composition, has the characteristics that strong inhibition capability, bio-toxicity are low, good with other inorganic agent compatibilities.Its mechanism of action is mainly worked by the distinctive absorption of amido, low molecule amine penetrates clay layer as potassium ion, the amine desorption of low concentration is with the exchangeable cations of hydration shell, clay lamella is bound together by Electrostatic Absorption, hydrogen bond action and dipole effect etc., it prevents hydrone from entering, and inhibitory effect is enhanced by encapsulation action.
Description
Technical field
The present invention relates to oil drilling chemical material technical fields, in particular to the petroleum drilling and mining for clay interface is special
With stabilizer and preparation method thereof.
Background technique
During oil gas drilling, when boring chance mud shale stratum, the hydration swelling of mud shale, dispersion will lead to borehole wall mistake
Surely, bit balling and a series of problems, such as difficult hole cleaning.To solve these problems, technical staff is added glutinous in drilling fluid
Soil Interface stabilizer avoids borehole well instability problem brought by clay flocculation and hydration swelling to guarantee that clay is stablized.
Clay stabilizer experienced inorganic salts, inorganic multicore polymer, cationic surfactant, organic cation polymerization
The object stage.Wherein, organic cationic polymer clay stabilizer becomes popular research direction, if CN101921366 is by two allyls
Ammonium chloride and triallylammonium chloride synthesize three branch cationic polymers, for stablizing clay in oil recovery process.But it studies
Show that the cationic polymer of high molecular weight is not suitable for tight formation, is easy to form embolism in formation pore channel, from
And block stratum；Polymer is due to molecular chain length, the processing of Yi Yuhan anionic group more containing cation group quantity simultaneously
Agent reacts, extreme influence inorganic agent effect.Therefore, it is necessary to develop low relative molecular mass, protection stratum preserve from and
The good clay stabilizer with other inorganic agent compatibilities.
Currently, the clay interface stability agent of research includes a kind of low molecular weight cationic amine based polymer, polyamine tool
There are stronger rejection ability and anti-mud drum ability, meet environmental requirement, at present the great attention by drilling fluid worker.Ammonium
(amine) substance is used to inhibit Shale Hydration expansion, improves the existing very long history of property of drilling fluid, and type is constantly sent out
Exhibition, function are also constantly improve, and high performance water-based drilling fluid polyamine inhibitor is exactly the embodiment of research new results at present.But
That there is inhibiting effect is not strong for the clay interface stability agent of in use process, it was also found that part, to the toxic contact scar of environment.
CN107312507A discloses a kind of clay stabilizer and its application, comprising the following steps: a adds epoxychloropropane
Enter into the aqueous solution of unitary fatty amine, then reacts certain time；B reacted into step a after solution in add epoxy
Then chloropropane heats up, reacted；C reacted into step b after solution in polyamine is added, add epoxychloropropane,
Then it is reacted, the clay stabilizer is obtained after dry, molecular weight is relatively low, can under extremely low dosage
It is enough effectively to inhibit clay hydration swelling and dispersion migration.But epoxychloropropane is colourless liquid, is had like chloroform smell, volatile,
Unstable, inflammable, medium poison, zoopery proof has potential carcinogenesis.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides the petroleum drilling and mining for clay interface it is stabilizing agent specially used and
Preparation method, the clay interface stability agent are aminated compounds, small cation inhibitor, rock coating agent, non-ionic surface
Activating agent composition, has the characteristics that strong inhibition capability, bio-toxicity are low, good with other inorganic agent compatibilities.Its mechanism of action is main
It is to be worked by the distinctive absorption of amido, low molecule amine penetrates clay layer, the amine desorption of low concentration as potassium ion
Clay lamella is strapped in one by Electrostatic Absorption, hydrogen bond action and dipole effect etc. by the exchangeable cations of subsidiary hydration shell
It rises, prevents hydrone from entering, and enhance inhibitory effect by encapsulation action.
In order to solve the above technical problems, the technical solution adopted by the present invention is that, the petroleum drilling and mining for clay interface is special
With stabilizer, in terms of 100 parts by weight, including following components:
30 ~ 70 parts by weight of aminated compounds；
10 ~ 30 parts by weight of small cation inhibitor；
5 ~ 15 parts by weight of rock coating agent；
3 ~ 10 parts by weight of nonionic surfactant.
The above-mentioned petroleum drilling and mining for clay interface is stabilizing agent specially used, and aminated compounds is polyether diamine, ether amines, chlorination
The combination of one or more of choline, polyethyleneimine, dodecyl ethyoxyl sulfobetaines, ethyoxyl diamines.
The above-mentioned petroleum drilling and mining for clay interface is stabilizing agent specially used, and small cation is epoxypropyl trimethylammonium chloride
The combination of one or more of ammonium, N methyldiethanol amine, Methylethyl dihydroxy ethyl ammonium bromide.
The above-mentioned petroleum drilling and mining for clay interface is stabilizing agent specially used, and rock coating agent is PHPA, in polyvinyl alcohol
One or more of combinations.
The above-mentioned petroleum drilling and mining for clay interface is stabilizing agent specially used, nonionic surfactant OP-10, polyalcohol
The combination of one or more of esters surface active agent.
The stabilizing agent specially used preparation method of petroleum drilling and mining for clay interface, comprising the following steps:
(1), small cation inhibitor is added in aminated compounds, is stirred evenly；
(2), rock coating agent is mixed into mixture obtained by step (1), is stirred evenly；
(3), nonionic surfactant is mixed into mixture obtained by step (2), is stirred evenly.
The stabilizing agent specially used preparation method of the above-mentioned petroleum drilling and mining for clay interface, the nonionic surfactant
With step (2) obtained by mixture mix when, when selecting two or more nonionic surfactants, respectively by selection it is non-from
Sub- surfactant is mixed into, and in the mixed process of each nonionic surfactant, controls its mixed speed respectively, is mixed
It closes uniform.
The present invention beneficial effect stabilizing agent specially used and preparation method thereof for the petroleum drilling and mining at clay interface is the present invention
Middle amine inhibitor and scattered inhibitor PHPA collective effect inhibit the aquation of clay to disperse.Firstly, the amine picture of low molecular weight
Potassium ion equally penetrates clay layer, and the amine desorption of low concentration passes through Electrostatic Absorption, hydrogen with the exchangeable cations of hydration shell
Clay lamella is bound together by key effect and dipole effect etc., and hydrone is prevented to enter.Then, the PHPA of high molecular weight is in page
Rock surface is adsorbed, and covering coating shale is played the role of.By the encapsulation action of polymer, the complete of landwaste and clay is kept
It is whole, prevent landwaste disintegration in flow process.Therefore, it is blocked by the Chemical Inhibition of amine and the coating of PHPA, the two collaboration
Effect, can reach excellent inhibitory effect.Polyvinyl alcohol, polyalcohol have filming function, can be formed in rock and clay surface
Polymer film further enhances the stablizing effect of clay to coat to rock.
Specific embodiment
The present invention is described in detail with reference to embodiments, but the scope of the present invention is not limited to following embodiment.
Embodiment 1, the petroleum drilling and mining for clay interface is stabilizing agent specially used, in terms of 100 parts by weight, including following components:
30 parts by weight of aminated compounds；
10 parts by weight of small cation inhibitor；
5 parts by weight of rock coating agent；
3 parts by weight of nonionic surfactant.
Embodiment 2, the petroleum drilling and mining for clay interface is stabilizing agent specially used, in terms of 100 parts by weight, including following components:
50 parts by weight of aminated compounds；
20 parts by weight of small cation inhibitor；
10 parts by weight of rock coating agent；
7 parts by weight of nonionic surfactant.
Embodiment 3, the petroleum drilling and mining for clay interface is stabilizing agent specially used, in terms of 100 parts by weight, including following components:
70 parts by weight of aminated compounds；
30 parts by weight of small cation inhibitor；
15 parts by weight of rock coating agent；
10 parts by weight of nonionic surfactant.
Embodiment 4, the petroleum drilling and mining for clay interface is stabilizing agent specially used, including following components:
55 parts by weight of polyether diamine；
30 parts by weight of epoxypropyltrimethylchloride chloride；
10 parts by weight of PHPA;
5 parts by weight of OP-10.
Embodiment 5, the petroleum drilling and mining for clay interface is stabilizing agent specially used, including following components:
50 parts by weight of ether amines；
30 parts by weight of epoxypropyltrimethylchloride chloride；
15 parts by weight of PHPA；
5 parts by weight of polyvinyl alcohol；
5 parts by weight of polyethylene glycol.
Embodiment 6, the agent of clay interface stability is in terms of 100 parts by weight in the present embodiment, including following components:
70 parts by weight of choline chloride；
15 parts by weight of N methyldiethanol amine；
10 parts by weight of polyvinyl alcohol；
5 parts by weight of polypropylene glycol.
The PHPA is partially hydrolyzed polyacrylamide (PHPA), and OP-10 is alkyl phenol polyoxyethylene ether.
The stabilizing agent specially used preparation method of petroleum drilling and mining for clay interface, comprising the following steps:
(1), small cation inhibitor is added in aminated compounds, is stirred evenly；
(2), rock coating agent is mixed into mixture obtained by step (1), is stirred evenly；
(3), nonionic surfactant is mixed into mixture obtained by step (2), is stirred evenly.
The stabilizing agent specially used preparation method of the above-mentioned petroleum drilling and mining for clay interface, the nonionic surfactant
With step (2) obtained by mixture mix when, when selecting two or more nonionic surfactants, respectively by selection it is non-from
Sub- surfactant is mixed into, and in the mixed process of each nonionic surfactant, controls its mixed speed respectively, is mixed
It closes uniform.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions made within the essential scope of the present invention of those of ordinary skill, also should belong to the present invention
Protection scope.
Claims (7)
1. the petroleum drilling and mining for clay interface is stabilizing agent specially used, it is characterised in that: in terms of 100 parts by weight, including following components:
30 ~ 70 parts by weight of aminated compounds；
10 ~ 30 parts by weight of small cation inhibitor；
5 ~ 15 parts by weight of rock coating agent；
3 ~ 10 parts by weight of nonionic surfactant.
2. the petroleum drilling and mining according to claim 1 for clay interface is stabilizing agent specially used, characterized in that aminated compounds
For one in polyether diamine, ether amines, choline chloride, polyethyleneimine, dodecyl ethyoxyl sulfobetaines, ethyoxyl diamines
Kind or several combinations.
3. the petroleum drilling and mining according to claim 1 or 2 for clay interface is stabilizing agent specially used, it is characterised in that: small sun
Ion is one of epoxypropyltrimethylchloride chloride, N methyldiethanol amine, Methylethyl dihydroxy ethyl ammonium bromide or several
The combination of kind.
4. according to claim 1 or the petroleum drilling and mining as claimed in claim 2 for clay interface is stabilizing agent specially used, feature
It is that rock coating agent is the combination of one or more of PHPA, polyvinyl alcohol.
5. according to claim 1 or the petroleum drilling and mining as claimed in claim 2 for clay interface is stabilizing agent specially used, feature
It is the combination of one or more of nonionic surfactant OP-10, polyalcohol esters surface active agent.
6. the stabilizing agent specially used preparation method of the petroleum drilling and mining for being used for clay interface, it is characterised in that: the following steps are included:
(1), small cation inhibitor is added in aminated compounds, is stirred evenly；
(2), rock coating agent is mixed into mixture obtained by step (1), is stirred evenly；
(3), nonionic surfactant is mixed into mixture obtained by step (2), is stirred evenly.
7. the stabilizing agent specially used preparation method of the petroleum drilling and mining according to claim 6 for clay interface, characterized in that
When the nonionic surfactant is mixed with mixture obtained by step (2), when the two or more nonionic surfactants of selection
When, the nonionic surfactant of selection to be mixed into respectively, and in the mixed process of each nonionic surfactant, point
Its mixed speed is not controlled, is uniformly mixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910151402.4A CN109735313A (en) | 2019-02-28 | 2019-02-28 | Petroleum drilling and mining for clay interface is stabilizing agent specially used and preparation method thereof |
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| CN201910151402.4A CN109735313A (en) | 2019-02-28 | 2019-02-28 | Petroleum drilling and mining for clay interface is stabilizing agent specially used and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011317A (en) * | 2020-08-11 | 2020-12-01 | 中国石油天然气集团有限公司 | Stabilizer for controlling fine clay dispersion in shale stratum drilling and preparation method thereof |
| IT201900019271A1 (en) * | 2019-10-18 | 2021-04-18 | Versalis Spa | COMPOSITION TO CONTROL THE HYDRATION OF CLAYS IN AN UNDERGROUND FORMATION AND RELATIVE USE. |
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| CN101717625A (en) * | 2009-11-23 | 2010-06-02 | 大庆石油学院 | Clay stabilizing agent suitable for low-permeability oil pool |
| CN103509533A (en) * | 2012-06-29 | 2014-01-15 | 中国石油化工股份有限公司 | Shale inhibitor for well drilling and preparation method thereof |
| CN103773353A (en) * | 2014-02-21 | 2014-05-07 | 亿城淄博石油陶粒制造有限公司 | Clay stabilizer for water base fracturing as well as preparation method and application thereof |
| CN105670574A (en) * | 2014-11-21 | 2016-06-15 | 中石化胜利石油工程有限公司钻井工艺研究院 | Drilling fluid ether-amine compound inhibitor and preparation method thereof |
| CN106147739A (en) * | 2016-07-19 | 2016-11-23 | 郑州鑫源防磨耐材有限公司 | A kind of pressure break clay stabilizer and preparation method thereof |
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2019
- 2019-02-28 CN CN201910151402.4A patent/CN109735313A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010036729A2 (en) * | 2008-09-26 | 2010-04-01 | Bp Corporation North America Inc. | Wellbore treatment compositions |
| CN101717625A (en) * | 2009-11-23 | 2010-06-02 | 大庆石油学院 | Clay stabilizing agent suitable for low-permeability oil pool |
| CN103509533A (en) * | 2012-06-29 | 2014-01-15 | 中国石油化工股份有限公司 | Shale inhibitor for well drilling and preparation method thereof |
| CN103773353A (en) * | 2014-02-21 | 2014-05-07 | 亿城淄博石油陶粒制造有限公司 | Clay stabilizer for water base fracturing as well as preparation method and application thereof |
| CN105670574A (en) * | 2014-11-21 | 2016-06-15 | 中石化胜利石油工程有限公司钻井工艺研究院 | Drilling fluid ether-amine compound inhibitor and preparation method thereof |
| CN106147739A (en) * | 2016-07-19 | 2016-11-23 | 郑州鑫源防磨耐材有限公司 | A kind of pressure break clay stabilizer and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900019271A1 (en) * | 2019-10-18 | 2021-04-18 | Versalis Spa | COMPOSITION TO CONTROL THE HYDRATION OF CLAYS IN AN UNDERGROUND FORMATION AND RELATIVE USE. |
| CN112011317A (en) * | 2020-08-11 | 2020-12-01 | 中国石油天然气集团有限公司 | Stabilizer for controlling fine clay dispersion in shale stratum drilling and preparation method thereof |
| CN112011317B (en) * | 2020-08-11 | 2022-08-02 | 中国石油天然气集团有限公司 | Stabilizer for controlling fine clay dispersion in shale stratum drilling and preparation method thereof |
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