Rapid viscosity-increasing fracturing thickening agent suitable for preparing flow-back liquid treatment water

The invention discloses a fracturing thickening agent suitable for flow-back liquid. The fracturing liquid thickening agent is a guar derivative subjected to surface treatment, the gas production or oil production fracturing liquid flow-back liquid is used as water for fracturing liquid preparation,...

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Main Authors BAI YAN, JI SHUXIAN, YE YINGQING, WU ZHIMING, CHEN WEIPING, HE JIANPING, ZHU MINGSHAN, DENG MINGYU, PENG SHUHUA, HE JUN, LI BO
Format Patent
LanguageEnglish
Published 30.12.2015
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:The invention discloses a fracturing thickening agent suitable for flow-back liquid. The fracturing liquid thickening agent is a guar derivative subjected to surface treatment, the gas production or oil production fracturing liquid flow-back liquid is used as water for fracturing liquid preparation, after fracturing liquid flow-back liquid fractures and flows back, the flow-back liquid is adjusted, the pH value of the flow-back liquid is 3.0-9.0, the content of calcium and magnesium ions in fracturing liquid is smaller than 10000 ppm and is calculated according to the element content, and the content of boron, zirconium and other multivalent cross-linked ions is smaller than 1000 ppm. The thickening agent has the advantages that viscosity is rapidly increased, high salinity resistance is achieved, high-price cross-linked ion boron and zirconium in the flow-back liquid have no influence, the requirement for flow-back liquid water treatment is lowered, performance is excellent, and the overall cost is lowered.
Bibliography:Application Number: CN20151593689