CHEMICAL FOR CRUDE OIL RECOVERY - NISSAN CHEMICAL CORP

Title:

CHEMICAL FOR CRUDE OIL RECOVERY

Document Type and Number:

WIPO Patent Application WO/2019/054414

Kind Code:

A1

Abstract:

[Problem] To provide a chemical for crude oil recovery, which has high crude oil recovery rate, while having excellent salt tolerance at high temperatures. [Solution] A chemical for crude oil recovery, which has excellent salt tolerance at high temperatures, and which is characterized by containing a silane compound, an aqueous silica sol having an average particle diameter of 3-200 nm, two or more anionic surfactants, and one or more nonionic surfactants.

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Inventors:

MURAKAMI SATORU (JP)
OOTA ISAO (JP)
SOUTHWELL JOHN EDMOND (US)

Application Number:

PCT/JP2018/033831

Publication Date:

March 21, 2019

Filing Date:

September 12, 2018

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Assignee:

NISSAN CHEMICAL CORP (JP)

International Classes:

C09K8/584; E21B43/22

Domestic Patent References:

WO2017083447A1

2017-05-18

Foreign References:

CN101735787A	2010-06-16
CN102838981A	2012-12-26
CN106085401A	2016-11-09

Attorney, Agent or Firm:

HANABUSA PATENT & TRADEMARK OFFICE (JP)

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