Boron removal treatment from oil field fracturing return fluid

2015-08-06View Original

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Low-polymer fracturing fluids are composed of main components such as polymers, buffers, and crosslinking agents. The polymer is a hydroxypropyl guar with high yield strength, which is used to produce fracturing fluid gels through the use of boron-based crosslinking agents. After comprehensive treatment of this water-based fracturing return fluid, trace amounts of boron remain in the water, at levels of around 50–300 ppm. If this water is to be reused, the presence of boron can cause problems related to secondary cross-linking during further processing. Chemical treatment methods are relatively difficult to use for this purpose; instead, resin-based methods can be employed to reduce the boron content to below 5 ppm. Thus, the purpose of reuse can be achieved. Everyone can communicate

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Boron removal treatment from oil field fracturing return fluid

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