Polyethylene Oxide MW 5,000,000 (PEO 5M, CAS 25322-68-3) is linear ultra-high molecular weight water-soluble polyether polymer. Applied in oilfield water-based fracturing fluid, hydrated polymer chains form continuous viscous network. It offers reliable sand-carrying capacity to transport proppants underground. After gel breaking, few residues remain inside rock pores, minimizing reservoir permeability impairment. It is an excellent low-damage thickening polymer for conventional and tight format

Product Detail

Product Overview

Polyethylene Oxide MW 5,000,000 (CAS 25322-68-3) is ultra-high molecular weight PEO customized for oilfield fracturing fluid systems. Medium molecular weight PEO cannot provide sufficient viscosity and sand carrying performance; excessively high molecular weight grades cause poor solubility and difficult on-site preparation. This 5M grade balances thickening efficiency, shear stability and break performance.

After dissolving in water, polymer network maintains stable viscosity under pumping shear force, suspending proppants during fracturing. When matched with suitable breakers, the fluid viscosity can drop rapidly, with minimal residues left in reservoir channels.

Key Features

Molecular Weight: 5,000,000, CAS 25322-68-3, white free-flowing fine powder
Excellent thickening efficiency, outstanding proppant carrying capacity
Good shear stability under high pumping flow conditions
Low residue after gel breaking, effectively reduce formation damage
Nonionic polymer, compatible with many fracturing fluid additives
Convenient dissolution operation for field construction
Adaptable to moderate temperature oil and gas reservoir conditions

Main Applications

Viscosifying thickener for low-damage water-based fracturing fluid
Functional polymer for tight sandstone and coalbed methane stimulation fluid
Auxiliary additive for temporary blocking and reservoir treatment fluid
Thickening agent for oilfield water injection and workover fluids

Usage Guidance

Gradually disperse PEO powder into circulating water to avoid agglomeration and fish eyes. Prepare base fluid on site, then add crosslinkers, breakers and other additives as formula required. Conduct laboratory evaluation on viscosity, sand suspension property and gel breaking performance before formal construction. Adjust dosage according to formation temperature and construction requirements.

Storage & Package

Seal packages tightly. Store in cool, dry and ventilated warehouse, avoid moisture absorption, high temperature and direct sunlight. Standard package: 25kg kraft paper bag with inner PE liner. Shelf life: 12 months under proper sealed storage.

Service Support

Test samples available for fracturing fluid formulation test. Stable bulk supply. We provide technical support for oilfield chemical formula development. Welcome to inquire TDS, COA and factory quotation.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.