Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-temperature-resistant oil base drilling fluid emulsifier

An oil-based drilling fluid and emulsifier technology, which is applied in the field of oil-based drilling fluid, can solve problems such as unstable performance, high emulsifier price, and single emulsifier variety, and achieve good stability, good compatibility, and strong anti-pollution ability Effect

Active Publication Date: 2014-04-16
ANTON OILFIELD SERVICES (GRP) LTD
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Domestically synthesized emulsifiers are relatively single in variety, unstable in performance, and cannot meet the drilling requirements of complex wells. Chen Ben increased
In addition, most domestic emulsifiers do not meet environmental protection requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature-resistant oil base drilling fluid emulsifier
  • High-temperature-resistant oil base drilling fluid emulsifier
  • High-temperature-resistant oil base drilling fluid emulsifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Emulsifier A: The preparation process is: lauryl alcohol first undergoes substitution reaction with ethylene oxide, the reaction molar ratio is 1 to 3:1, and the reaction conditions are: reaction at a temperature of 100°C to 150°C for 2 to 5 hours. The reaction product is further added by addition polymerization to form an ether. When 10-15 are added, emulsifier A is obtained. The prepared emulsifier A showed better emulsifying ability, wetting ability and biodegradability. The lauryl alcohol in the above preparation process can also be replaced with oleyl alcohol, cyclohexanol, and stearyl alcohol.

[0015] Emulsifier B: three raw materials: iron petroleum sulfonate, sodium alkylbenzene sulfonate, sodium alkyl succinate sulfonate at a weight ratio of 2:1:1, stir and mix uniformly at a high speed at 60°C to obtain an emulsifier B. The prepared emulsifier B is a good oil-soluble emulsifier and dispersant.

[0016] Emulsifier C is zinc stearate, which has good thermal stabil...

Embodiment 2

[0026] Emulsifier A: palmityl alcohol first undergoes a substitution reaction with ethylene oxide, the reaction molar ratio is 1 to 3:1, and the reaction conditions are: 100°C to 150°C for 2 to 5 hours. The reaction product is further added into ether by addition polymerization. When 10-15 are added, the product emulsifier A is obtained. The prepared emulsifier A showed better emulsifying ability, wetting ability and biodegradability. The lauryl alcohol in the above preparation process can also be replaced with oleyl alcohol, cyclohexanol, and stearyl alcohol.

[0027] Emulsifier B: two raw materials: iron petroleum sulfonate and sodium alkylbenzene sulfonate in a weight ratio of 2:1, stir and mix uniformly at a high speed at 60°C to obtain emulsifier B. The prepared emulsifier B is a good oil Soluble emulsifier and dispersant.

[0028] Emulsifier C is polyoxyethylene stearate, which has good thermal stability.

[0029] The emulsifier A, emulsifier B, and emulsifier C obtained abo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-temperature-resistant oil base drilling fluid emulsifier which consists of the following components: an emulsifier A, an emulsifier B and an emulsifier C, wherein the emulsifier A refers to a long-chain alkyl aliphatic alcohol amide type nonionic surfactant; the emulsifier B refers to sulfonate; the emulsifier C refers to stearate; a mass ratio of the emulsifier A to the emulsifier B to the emulsifier C is (1.5-2.5):(0.8-1.2):1; the emulsifier B is selected from one or more of petroleum iron sulfonate, sodium alkyl benzene sulfonate, sodium alkylarysulfonate and sodium alkyl succinate sulfonate; the emulsifier C is selected from one or two of polyoxyethylene stearate or zinc stearate. The high-temperature-resistant oil base drilling fluid emulsifier is used for forming water-in-oil emulsion for drilling fluid, and the emulsifier has the characteristics of high temperature resistance (180 DEG C), high pollution resistance and compatibility with other treatment agents and can be widely applied to the oil base drilling fluid.

Description

Technical field [0001] The invention relates to the technical field of oil-based drilling fluids, in particular to a high-temperature resistant oil-based drilling fluid emulsifier. Background technique [0002] Foreign oil-based drilling fluid technology research started earlier, and the oil-based drilling fluid system has been studied in depth. It has been widely used in complex formations, deep wells, directional wells, horizontal wells and other complex wells, and has a relatively complete drilling fluid system. And performance control programs, especially the oil-based drilling fluid technology of the United States, the United Kingdom, and Norway is in a leading position in the world. Compared with foreign countries, my country's oil-based drilling fluid technology research and development lags behind developed countries, especially the research and development of treatment agents. The biggest technical difficulty of oil-based drilling fluids is to maintain the stability of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035C09K8/36
CPCC09K8/035C09K8/36
Inventor 唐燕吕志强李占国谭文军胡金虎
Owner ANTON OILFIELD SERVICES (GRP) LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com