Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of rapid demulsifier for heavy oil oilfield production fluid and preparation method thereof

A technology of produced fluid and demulsifier, applied in the field of petroleum industry, can solve the problems of complex components of produced fluid, slowing down of oil-water sedimentation and separation, and intensified degree of emulsification, so as to achieve significant social and environmental benefits and improve equipment utilization. , the effect of improving efficiency

Active Publication Date: 2021-02-23
CNOOC TIANJIN CHEM RES & DESIGN INST +2
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main manifestations are: the composition of the produced fluid is becoming more and more complex, the degree of emulsification is intensified, and the difficulty of demulsification and water purification is greatly increased. dehydration effect
Under the complex emulsification conditions of heavy oil, conventional demulsifiers are no longer suitable, and the oil-water sedimentation and separation speed slows down. Severe oil-water transition layer

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
  • A kind of rapid demulsifier for heavy oil oilfield production fluid and preparation method thereof
  • A kind of rapid demulsifier for heavy oil oilfield production fluid and preparation method thereof
  • A kind of rapid demulsifier for heavy oil oilfield production fluid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the closed reactor, add 18g allyl polyether (molecular weight is 2500, wherein EO:PO=0.6:1), add 5g hydrogen-containing silicone oil (hydrogen content 1.58%), add catalyst chloroplatinic acid, the reactor After repeated replacement of nitrogen, under stirring, the temperature was raised to 100°C for 3 hours, and 0.8g sodium allyl sulfonate was added, and the reaction was kept for 1 hour. Finally, 1.2g tetramethylammonium chloride, 5.5g fast penetrating agent T and Add 69.5g of 200# solvent oil into the reactor, continue to stir evenly, and finally cool and discharge to obtain the finished product 1.

Embodiment 2

[0023] In the closed reactor, add 18g allyl polyether (molecular weight is 2500, wherein EO:PO=0.6:1), add 5g hydrogen-containing silicone oil (hydrogen content 1.58%), add catalyst chloroplatinic acid, the reactor After repeated replacement of nitrogen, under stirring, the temperature was raised to 100 ° C for 3 hours, and 0.8 g of sodium allyl sulfonate was added, and the reaction was kept for 1 hour. Finally, 1.2 g of tetramethylammonium bromide, 5.5 g of penetrant JFC and 69.5 Add g200# solvent oil into the reactor, continue to stir evenly, and finally cool and discharge to obtain the finished product 2.

Embodiment 3

[0025] In the closed reactor, add 18g of allyl polyether (molecular weight is 2500, wherein EO:PO=0.7:1), add 5g of hydrogen-containing silicone oil (hydrogen content 1.58%), add catalyst chloroplatinic acid, the reactor After repeated replacement of nitrogen, under stirring, the temperature was raised to 100 ° C for 3 hours, and 1.0 g of allyl sodium sulfonate was added, and the reaction was kept for 1 hour. Finally, 1.2 g of tetramethylammonium chloride, 5.5 g of fast penetrating agent T and Add 69.3g of xylene into the reactor, continue to stir evenly, and finally cool and discharge to obtain the finished product 3.

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 rapid demulsifier for heavy oil oilfield production fluid and a preparation method thereof. The rapid demulsifier for heavy oil oilfield production fluid is composed of organosilicon modified polyether, interfacial elimination agent, penetrant and solvent, and the quality of the organosilicon modified polyether, interfacial elimination agent, penetrant and solvent is The ratio is 10-30: 1.0-3.5: 5-10: 56.5-84. The rapid demulsifier for heavy oil oil field production fluid of the present invention can quickly reduce the viscosity of heavy oil, and has the advantages of easy diffusion, fast dehydration, clear water quality and the like in the treatment of heavy oil oil field production fluid.

Description

technical field [0001] The invention belongs to the technical field of petroleum industry, and in particular relates to a rapid demulsifier for heavy oil oil field production fluid and a preparation method thereof. Background technique [0002] Statistics show that the geological reserves of heavy oil in the world are about more than 1 trillion tons, and the geological reserves of heavy oil, conventional crude oil and natural gas account for 53%, 25% and 22% of the total reserves respectively, and the geological reserves of heavy oil are equivalent to conventional oil and gas sum of reserves. Of the approximately 10 trillion barrels of remaining oil resources in the world, more than 70% are heavy oil resources. In China, onshore heavy oil and bitumen resources account for more than 20% of the total petroleum resources, with a predicted resource volume of 19.8 billion tons, of which the ultimate proven geological resources are 7.95 billion tons, and the recoverable resources...

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 Patents(China)
IPC IPC(8): C10G33/04
CPCC10G33/04
Inventor 魏清姚光源张迪彦王惠李家俊章甦齐玉张丽锋王宁
Owner CNOOC TIANJIN CHEM RES & DESIGN INST