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Inorganic silicon-molybdenum oil displacement agent

A technology of oil-displacing agent and inorganic silicon, which is applied in the field of oil-displacing agent, can solve problems such as unsatisfactory use effect, achieve novel structural design, improve oil recovery rate, and improve oil recovery efficiency

Active Publication Date: 2022-06-28
东营勤和工贸有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a method of adding nano-scale molybdenum sulfide under the premise of using lipopeptide sodium as the tertiary oil recovery surfactant under the premise that the existing oil displacement agent has an unsatisfactory effect in the actual oil extraction process. and nano-scale silica as an auxiliary additive for oil-displacing agents, and a device that can realize the flow-through production and processing of the above-mentioned oil-displacing agents

Method used

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  • Inorganic silicon-molybdenum oil displacement agent
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  • Inorganic silicon-molybdenum oil displacement agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 discloses a preparation process of an inorganic silicon-molybdenum oil-displacing agent, with reference to the appendix. figure 1 , the preparation process comprises the following steps:

[0048] S1: Add 100kg of deionized water to the preparation tank, then add 1.2kg of sodium subtilisin lipopeptide, 6.5kg of sodium dodecylbenzenesulfonate and 4.4kg of n-butanol, and stir to a temperature of 52° C. completely dissolved;

[0049] S2: Weigh 1.4kg of nano-scale molybdenum sulfide and 2.6kg of nano-scale silicon dioxide and put them into the mixed solution prepared above, then the solution is stirred and dispersed for 35min at a rotating speed of 3200r / min, and then the dispersed solution is ultrasonically treated to obtain a dispersion;

[0050] S3: Filling the above-mentioned dispersion liquid under the premise of stirring, and obtaining the inorganic silicon-molybdenum oil-displacing agent after filling and sealing.

Embodiment 2

[0052] Embodiment 2 discloses a preparation process of an inorganic silicon-molybdenum oil-displacing agent, with reference to the appendix. figure 1 , the preparation process comprises the following steps:

[0053] S1: Add 100kg of deionized water to the preparation tank, then add 1.7kg of sodium subtilisin lipopeptide, 6.8kg of sodium dodecylbenzenesulfonate and 5.5kg of n-butanol, and stir to a temperature of 55°C until completely dissolved;

[0054] S2: Weigh 1.8kg of nano-scale molybdenum sulfide and 2.2kg of nano-scale silicon dioxide and put into the mixed solution prepared above, then the solution is stirred and dispersed at a rotational speed of 3700r / min for 32min, and then the dispersed solution is ultrasonically treated to obtain a dispersion;

[0055] S3: Filling the above-mentioned dispersion liquid under the premise of stirring, and obtaining the inorganic silicon-molybdenum oil-displacing agent after filling and sealing.

[0056] To sum up the above examples...

Embodiment 3

[0058] Example 3 discloses a device used in the preparation process of the inorganic silicon-molybdenum oil-displacing agent disclosed in Example 1 and Example 2, refer to the appendix. figure 2 and attached image 3 , the main body of the device includes a dose bottle transmission mechanism 100 , a preparation tank 200 and a filling mechanism 300 . Wherein, the bottle conveying mechanism 100 includes a feeding conveyor 101 , a discharging conveyor 102 , and a rotary bottle feeding device 103 disposed between the feeding conveyor 101 and the discharging conveyor 102 .

[0059] Specifically, the structure of the rotary bottle feeding device 103 is referred to in the appendix. Figure 4 and attached Figure 5 , which includes a base 1031, a stepping motor 1032 is arranged in the inner cavity of the base 1031, a circular tray 1033 is fixedly connected to the upper surface of the base 1031, and a guide ring plate is connected to the outer circumference of the circular tray 1033...

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Abstract

The invention belongs to the technical field of oil-displacing agents, and particularly relates to an inorganic silicon-molybdenum oil-displacing agent which comprises the following components in parts by weight: 80-100 parts of deionized water, 5-8 parts of sodium dodecyl benzene sulfonate, 3-6 parts of n-butyl alcohol, 1-2 parts of sodium bacillus subtilis lipopeptide, 1-2 parts of nanoscale molybdenum sulfide and 2-4 parts of nanoscale silicon dioxide. According to the oil-displacing agent disclosed by the invention, the oil-water interfacial tension can reach 10 <-3 > mN / m order of magnitude under extremely low concentration, then molybdenum sulfide and silicon dioxide are added into an oil-displacing agent semi-finished product, high-speed stirring is performed, and then ultrasonic dispersion is performed to obtain the dispersed liquid oil-displacing agent. When the whole oil-displacing agent is actually used, the dispersion time of the petroleum mother liquor can be less than 4 minutes, and the crude oil recovery rate and the crude oil recovery efficiency can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of oil-displacing agents, in particular to an inorganic silicon-molybdenum oil-displacing agent. Background technique [0002] Reservoir natural energy development is called primary oil recovery, water injection supplementary energy development is called secondary oil recovery, and gas injection or chemical flooding development is called tertiary oil recovery or enhanced oil recovery (EOR). In order to enhance oil recovery, one of the chemical methods used is to use oil-displacing agents, and the most used oil-displacing agents are surfactant products. Most of the oil displacement agents currently used in oilfields are anionic surfactants, or a mixture of anionic surfactants and nonionic surfactants. [0003] The traditional oil displacement agent can increase the oilfield recovery factor by another 20%. To effectively use the composite flooding technology to greatly improve the crude oil recovery factor, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/58C09K8/584B67C3/18B67C3/24B67C3/26B67C3/28
CPCC09K8/58C09K8/584B67C3/24B67C3/26B67C3/28B67C3/18C09K2208/10Y02A50/30
Inventor 于世江孙荣华张艳华
Owner 东营勤和工贸有限公司