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Mahogany petroleum sulfonate preparation method for oil exploitation

A technology of petroleum sulfonate and petroleum, which is applied in the directions of sulfonate preparation, chemical instrument and method, drilling composition, etc., to achieve the effects of high oil washing efficiency, high active substance content, and enhanced oil recovery.

Inactive Publication Date: 2013-12-18
王晓晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly has the problems of insufficient raw material sources, complex preparation process, single chemical structure of the product, extremely unsatisfactory application performance and high product price.

Method used

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  • Mahogany petroleum sulfonate preparation method for oil exploitation
  • Mahogany petroleum sulfonate preparation method for oil exploitation
  • Mahogany petroleum sulfonate preparation method for oil exploitation

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Petroleum development adopts a high-performance petroleum sulfonate preparation method. The raw materials are: crude oil distillate oil (mixture) in the 240°C~590°C fraction section and halogenated hydrocarbons are mixed in a mass ratio of 1:0.1 to form A component; sulfur trioxide and Halogenated hydrocarbons are mixed in a mass ratio of 1:2 as component B; ammonia water is component C; the halogenated hydrocarbons are dichloromethane; components A and B are mixed in a mass ratio of 1:0.2 and added to the rotary Packed bed sulfonation reactor, the temperature is 0°C, the continuous outflow is petroleum sulfonic acid, the petroleum sulfonic acid is aged in the aging reactor for 4 hours, and then the aged petroleum sulfonic acid and component C are mixed in a ratio of 1: The mass ratio of 0.5 is mixed and added to the homogeneous neutralization reactor, the temperature is 60°C, and the continuous effluent is crude petroleum sulfonate; the crude petroleum sulfonate enters ...

Embodiment 2

[0017] Petroleum development adopts a high-performance petroleum sulfonate preparation method. The raw materials are: crude oil distillate oil (mixture) in the 240°C~590°C fraction section and halogenated hydrocarbons are mixed in a mass ratio of 1:0.6 to form A component; sulfur trioxide and Halogenated hydrocarbons are mixed into component B at a mass ratio of 1:3; ammonia water is component C; the halogenated hydrocarbons are dichloroethane; components A and B are mixed and added at a mass ratio of 1:1 Rotating packed bed sulfonation reactor, the temperature is 20°C, the continuous outflow is petroleum sulfonic acid, the petroleum sulfonic acid is aged in the aging reactor for 4 hours, and then the aged petroleum sulfonic acid and C component are mixed with 1 The mass ratio of :1 is mixed and added to the homogeneous neutralization reactor, the temperature is 80°C, and the continuous effluent is crude petroleum sulfonate; the crude petroleum sulfonate enters the settling tan...

Embodiment 3

[0024] Petroleum development adopts a high-performance petroleum sulfonate preparation method. The raw materials are: crude oil distillate oil (mixture) in the 240°C~590°C fraction section and halogenated hydrocarbons are mixed in a mass ratio of 1:1 to form A component; sulfur trioxide and Halogenated hydrocarbons are mixed into component B at a mass ratio of 1:4; ammonia water is component C; the halogenated hydrocarbon is dichloroethane; components A and B are mixed at a mass ratio of 1:2 and added Rotating packed bed sulfonation reactor, the temperature is 60°C, the continuous outflow is petroleum sulfonic acid, the petroleum sulfonic acid is aged in the aging reactor for 4 hours, and then the aged petroleum sulfonic acid and C component are mixed with 1 : The mass ratio of 2 is mixed and added to the homogeneous neutralization reactor, the temperature is 120 ° C, and the continuous effluent is petroleum sulfonate crude product; the petroleum sulfonate crude product enters ...

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Abstract

The invention discloses a high-performance mahogany petroleum sulfonate preparation method for enhanced oil recovery in oil exploitation. A mahogany petroleum sulfonate product is prepared from mahogany petroleum sulfonate as well as crude distillate oil on a distillate fraction of 240-590 DEG C, liquid SO3, NH3H2O and dichloroethane or dichloromethane through sulfonating in a rotary packed bed sulfonation reactor, neutralizing by a homogenizing pump and other chemical reactions, as well as carrying out settling separation, film falling and desolventizing processes. The macro-molecule oil soluble mahogany petroleum sulfonate product is prepared from un-sulfonated oil from settling separation and distillate oil at different proportions through repeated sulfonation and neutralization processes. The mahogany petroleum sulfonate product is high in sulfonating rate and high in performance. The invention provides a mahogany petroleum sulfonate product which is high in recovery rate and wide in application as well as a preparation technology of the mahogany petroleum sulfonate product. The mahogany petroleum sulfonate product is a preferred surfactant for chemical displacement of reservoir oil, which is for enhanced oil recovery in oil exploitation.

Description

technical field [0001] The invention belongs to the field of organic chemical industry, and in particular relates to a kind of distillate oil utilizing petroleum wide distillate fraction, SO 3 Preparation of petroleum sulfonate (HPPS for short) for enhanced oil recovery by liquid phase sulfonation process and its preparation method. Background technique [0002] The reason why oilfield water flooding development has a low recovery rate is that the crude oil exists in the low-permeability zone of the oil layer in the form of oil droplets and discontinuous oil film in the later stage of development. Due to the interfacial tension of 30-50mN / m between oil and water, that is, capillary force, the crude oil cannot It flows out of the ground with water. Recovery factor = swept volume × oil washing efficiency. According to this theory, the mechanism of tertiary oil recovery chemical flooding is to increase the viscosity of the injection fluid to increase the swept volume (polyme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/62C07C303/32C09K8/584
Inventor 王建华王晓晨
Owner 王晓晨
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