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Non thermo-sensitive type lyotropic liquid crystal soluble oil system, preparation method thereof and application

A lyotropic liquid crystal, non-temperature-sensitive technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of poor salt resistance, temperature sensitivity, large amount of surfactant, etc., and achieve low temperature stability Good, high temperature stability, low cost effect

Active Publication Date: 2015-04-22
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lyotropic liquid crystals prepared in the above documents all use a large amount of additives, a large amount of surfactant, poor salt resistance and temperature sensitivity

Method used

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  • Non thermo-sensitive type lyotropic liquid crystal soluble oil system, preparation method thereof and application
  • Non thermo-sensitive type lyotropic liquid crystal soluble oil system, preparation method thereof and application
  • Non thermo-sensitive type lyotropic liquid crystal soluble oil system, preparation method thereof and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Non-thermotropic lyotropic liquid crystal oil-soluble system, said system is made of the following components by weight:

[0029] 60 parts of 40wt% CaCl 2 Aqueous solution, 5 parts C 12 EO 9 (purchased from: Japan Nikkol Company), 5 parts of AES (purchased from: Germany BASF Company), 5 parts of CAB (purchased from: Shandong Lvsen Chemical Co., Ltd.).

[0030] Its preparation method is as follows:

[0031] Take the above components in the formula amount and stir until a uniform and viscous system, then take a sample and observe it under the polarizer, if oil-like patterns are observed, and the elastic modulus G' of the system measured by a rheometer is parallel and greater than Viscosity modulus G", that is, to obtain the non-thermotropic lyotropic liquid crystal oil-soluble system.

[0032] The high-temperature stability, long-term stability, low-temperature stability of the prepared non-thermotropic lyotropic liquid crystal oil-soluble system and the appearance an...

Embodiment 2

[0045] Non-thermotropic lyotropic liquid crystal oil-soluble system, said system is made of the following components by weight:

[0046] 70 parts of 20wt% CaCl 2 Aqueous solution, 5 parts C 12 EO 9 (purchased from: Japan Nikkol Company), 5 parts of AES (purchased from: Germany BASF Company), 5 parts of CAB (purchased from: Shandong Lvsen Chemical Co., Ltd.).

[0047] Its preparation method is as follows:

[0048] Take the above components in the formula amount and stir until a uniform and viscous system, then take a sample and observe it under the polarizer, if oil-like patterns are observed, and the elastic modulus G' of the system measured by a rheometer is parallel and greater than Viscosity modulus G", that is, to obtain the non-thermotropic lyotropic liquid crystal oil-soluble system.

[0049] Investigate the high-temperature stability, long-term stability, low-temperature stability of the prepared non-thermotropic lyotropic liquid crystal oil-soluble system by the me...

Embodiment 3

[0055] Non-thermotropic lyotropic liquid crystal oil-soluble system, said system is made of the following components by weight:

[0056] 60 parts of 40wt% CaCl 2 Aqueous solution, 10 parts C 12 EO 9 (purchased from: Japan Nikkol Company), 5 parts of AES (purchased from: Germany BASF Company), 5 parts of CAB (purchased from: Shandong Lvsen Chemical Co., Ltd.).

[0057] Its preparation method is as follows:

[0058] Take the above components in the formula amount and stir until a uniform and viscous system, then take a sample and observe it under the polarizer, if oil-like patterns are observed, and the elastic modulus G' of the system measured by a rheometer is parallel and greater than Viscosity modulus G", that is, to obtain the non-thermotropic lyotropic liquid crystal oil-soluble system.

[0059] Investigate the high-temperature stability, long-term stability, low-temperature stability of the prepared non-thermotropic lyotropic liquid crystal oil-soluble system by the m...

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Abstract

The invention provides a non thermo-sensitive type lyotropic liquid crystal soluble oil system. The system comprises, by weight, 55-85 parts of 20 wt%-50wt% of inorganic salt water solution, 5-10 parts of nonionic surfactant, 5-10 parts of ionic surfactant. The system does not contain cosurfactant. The non thermo-sensitive type lyotropic liquid crystal soluble oil system meets the various industrial requirements of environmental protection, and is easy to transport. The system is prepared from ordinary surfactant, the preparing method is simple, the manufacturing cost is low and the implementation is easy.

Description

technical field [0001] The present application relates to but is not limited to a solute liquid crystal oil-dissolving system, in particular, relates to a non-temperature-sensitive lyotropic liquid crystal oil-dissolving system and its preparation method and application. Background technique [0002] Lyotropic liquid crystals are liquid crystals formed by two or more compounds including solvates, and a liquid crystal phase appears when the concentration of solute molecules in a solution is within a certain range. The structure types include hexagonal phase, cubic phase or layered phase. The layered phase and hexagonal phase have typical birefringence under the polarizer, while the cubic phase does not. The special rheological behavior of lyotropic liquid crystals makes it play an important role in many fields. Lyotropic lamellar liquid crystals have a sheet structure similar to graphite, and the sheets can slide relative to each other, as described in US patent application U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/52C09K8/28
CPCC09K8/28C09K8/52
Inventor 李怀科孙德军罗健生耿铁王辉
Owner CHINA NAT OFFSHORE OIL CORP
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