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Base fluid for biomass drilling fluid, and preparation method and application thereof

A base fluid and drilling fluid technology, applied in the field of oil drilling, can solve the problems of biodegradability and environmental friendliness to be improved, and achieve the effects of good ecological safety and compatibility, wide viscosity range and good performance.

Active Publication Date: 2017-03-01
CHINA PETROCHEMICAL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the raw materials selected for this base fluid contain almost no aromatic hydrocarbons, its biodegradability and environmental friendliness still need to be improved

Method used

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  • Base fluid for biomass drilling fluid, and preparation method and application thereof

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preparation example Construction

[0043] Correspondingly, the present invention provides a kind of preparation method of biomass drilling fluid base fluid, comprising:

[0044] In parts by weight, 60-90 parts of amino acid alcohol ester, 5-30 parts of polyetheramino alkyl glycoside and 5-10 parts of methyl silicone oil are mixed to obtain the base fluid of biomass drilling fluid.

[0045] In the embodiment of the present invention, add 60-90 parts of amino acid alcohol ester into a stirring tank with a heating device, control the temperature and stirring speed, and add 5-30 parts of polyetheramino alkyl glycoside, 5-10 parts of methyl silicone oil in sequence. After mixing, the base fluid for biomass drilling fluid is obtained, that is, the base fluid for biomass drilling fluid.

[0046] The present invention mainly adopts compound components of amino acid alcohol ester, polyether amino alkyl glycoside and methyl silicone oil to prepare biomass synthesis-based drilling fluid base fluid. The amino acid alcohol ...

Embodiment 1

[0066] In a stirring tank with a heating device, the temperature is controlled at 40°C and the stirring rate is 100r / min. In parts by weight, 60 parts of lauryl glutamate, 30 parts of polyether aminomethyl glycoside, and two 10 parts of methyl silicone oil, kept stirring for 1 hour, cooled to room temperature, and obtained biomass drilling fluid base fluid.

[0067] At a stirring speed of 8000r / min, take 100 parts by weight of the biomass drilling fluid base fluid obtained above, first add 2 parts by weight of dodecyltrimethylammonium bromide modified organic soil, stir for 5 minutes, and then add fatty acid alcohol poly 4 parts by weight of oxyethylene ether ammonium sulfate, stirred for 5 minutes, then sequentially added 3 parts by weight of organic modified humic acid amide and 2 parts by weight of quicklime, stirred for 5 minutes, and finally added 50 parts by weight of barite, stirred for 5 minutes to mix, and then packed Put it into the aging tank and roll it at 90°C for...

Embodiment 2

[0069] In a stirring tank equipped with a heating device, the temperature is controlled at 100°C and the stirring rate is 300r / min. In parts by weight, 90 parts of isopropyl sarcosinate, 5 parts of polyetheraminoethyl glycoside, two 5 parts of ethyl silicone oil, kept stirring for 3 hours, cooled to room temperature, and obtained biomass drilling fluid base fluid.

[0070] At a stirring speed of 10000r / min, take 100 parts by weight of the biomass drilling fluid base fluid obtained above, first add 3 parts by weight of cetyltrimethylammonium bromide modified organic soil, stir for 10 minutes, and then add fatty amide poly 6 parts by weight of oxyethylene ether, stirred for 10 minutes, then added 5 parts by weight of sulfonated asphalt and 4 parts by weight of quicklime, stirred for 10 minutes, and finally added 70 parts by weight of barite, stirred for 10 minutes to mix, and then put into an aging tank and heated at 120°C After hot rolling for 48 hours, the emulsion fluid, that...

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Abstract

The invention provides a base fluid for a biomass drilling fluid and a preparation method thereof. The base fluid comprises, by weight, 60 to 90 parts of amino acid alcohol ester, 5 to 30 parts of polyetheramine alkyl glucoside and 5 to 10 parts of methylsilicone oil. The above components are mixed so as to obtain the base fluid for the biomass drilling fluid. According to the invention, amino acid alcohol ester has the advantage that the viscosity of amino acid alcohol ester is slightly influenced by temperature changes as the viscosity of ester substances, and has the characteristics of environment friendliness and biodegradability; through addition of polyetheramine alkyl glucoside, the surface activity of the base fluid is substantially improved, so the base fluid has good ecological security and intermiscibility; and as methylsilicone oil is added, the base fluid has good lubricity, physiological inertness and chemical stability. Thus, the base fluid for the biomass drilling fluid in the invention has the advantages of high environment friendliness, a wide viscosity range, a low freezing point, good lubricity, etc. and can meet performance demands for preparation of base oil for the drilling fluid. The invention also provides the biomass drilling fluid.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling, in particular to a biomass drilling fluid base fluid, a preparation method and application thereof. Background technique [0002] Drilling fluid is a circulating flushing medium used in the drilling process, mainly composed of dispersion medium (continuous phase), dispersed phase and additives. Among them, the base fluid is the main component of the drilling fluid, and its performance indicators determine most of the performance indicators of the drilling fluid, such as flash point, viscosity, freezing point and biological toxicity. With the increasingly stringent national environmental protection requirements and the demand for "clear water and blue sky" advocated by petrochemical groups, the development of environmentally friendly drilling fluids and the development of green drilling fluid base fluids have become the main direction of drilling fluid research and application. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/12C09K8/24
CPCC09K8/12C09K8/24
Inventor 单海霞何焕杰王中华刘明华郭民乐王芹
Owner CHINA PETROCHEMICAL CORP
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