High-temperature nanometer viscosity reducer for oil field viscose oil recovery
A viscosity reducer, nanotechnology, applied in the field of high temperature viscosity reducer, can solve the problem that the viscosity reduction effect needs to be further improved, and achieve the effect of excellent viscosity reduction effect
Inactive Publication Date: 2016-01-06
SOUTHWEST PETROLEUM UNIV
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For the viscosity reduction of extra-heavy oil and super-heavy oil, these two viscosity reducers have application limitations, and the viscosity-reducing effect needs to be further improved
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0009] Technical solution of the present invention is:
[0010] In the first step, put nickel acetylacetonate, alkylphenol polyoxyethylene ether, and sodium dodecylbenzenesulfonate into a large stirred reactor, and uniformly stir and react at a speed of 120 rpm and a constant temperature of 30°C for 1 hour .
[0011] In the second step, the modified nano-ZnO, modified nano-CaO, sodium hydroxide, and absolute ethanol were put into a small stirring reaction kettle, and stirred and reacted for 3 minutes at a constant temperature of 80° C. and a rotational speed of 3000 rpm.
[0012] The third step is to quickly pour the reactants in the small stirred reactor into the large stirred reactor, and then uniformly stir and react for 2 hours at a rotation speed of 120 rpm and a constant temperature of 30°C. After shutdown, the reactant in the large stirred reactor is the finished product of the viscosity reducer of the present invention.
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
Login to View More Abstract
The invention discloses a formula and production steps of a high-temperature nanometer viscosity reducer for oil field viscose oil recovery. According to the viscosity reducer, the development of a water-soluble emulsion viscosity reducing formula is treated as the basis, a high-temperature viscose oil cracking catalyst and a nanometer catalytic stabilizer are compounded, and therefore the high-temperature viscose oil cracking degree and stability are improved, and some long-carbon-chain molecules of viscose oil are effectively degraded into low-carbon-chain molecules. The viscosity reducer is mainly prepared from bisnickel hydrate, alkylphenol ethoxylates, modified nanometer ZnO, modified nanometer CaO and the like. The viscosity reducer has two functions of emulsion viscosity reduction and cracking viscosity reduction and has an excellent viscosity reduction effect for huff and puff high-temperature recovery of extra-heavy oil and super-heavy oil.
Description
Technical field: [0001] The invention is a high-temperature viscosity reducer which uses nanotechnology to increase efficiency and is used for the steam huff and puff exploitation of heavy oil in oilfields. It belongs to the chemical field of oil extraction. Background technique: [0002] With the increasing demand for crude oil production in my country and the continuous improvement of heavy oil mining technology, the blocks of extra-heavy oil and super-heavy oil, which were difficult to extract before, have begun to be fully developed. In the production of extra-heavy oil and super-heavy oil, it is more and more important to use viscosity reduction technology to assist production. [0003] For ordinary heavy oil, the viscosity reducers in steam huff and puff production are mainly divided into two types: water-soluble viscosity reducers and oil-soluble viscosity reducers. [0004] The water-soluble viscosity reducer reduces the interfacial tension between oil, water and s...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/584C09K8/03
CPCC09K8/584C09K8/03C09K2208/10
Inventor 王霞陈玉祥郝立军罗太元罗全民张志东方舒
Owner SOUTHWEST PETROLEUM UNIV