Methods and materials for hydraulic fracturing
AssigneeKeane Frac, LP
InventorsWilliam Scanlan, Deanna Dapolito, Kyle Pierskalla
Life of this patent
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Abstract
Compositions and methods are provided for treatment of a wellbore in a subterranean formation. Exemplary compositions comprise a mixture of particles, some of the particles being degradable and other particles being elongated, having good compressive strength, and not being readily degradable at the conditions of the formation. The mixture of particles can temporarily bridge or plug fractures within the formation, and thus acts as a temporary diversion agent. After the degradable particles dissolve, the particles which are not readily degradable can remain in the fracture, helping to keep the fracture open and acting as a proppant.
Claims25
A method for treatment of a wellbore in fractured subterranean formation, the method comprising the steps of:
- a. introducing into the wellbore a treatment fluid comprising:
- i) 5 to 20 wt % of a first type of particle, the first type of particle having a particle size from 2 mm to 3.5 mm and comprising a first degradable material;
- ii) 5 to 20 wt % of a second type of particle, the second type of particle having a particle size less than or equal to 0.6 mm and comprising a second degradable material;
- and
- iii) 60 to 90 wt % of a third type of particle, the third type of particle being elongated in shape, having a width from 0.7 mm to 1.2 mm, having a length from 1.5 to 5 times the width, and comprising a ceramic material;
- iv) a fourth type of particle, the fourth type of particle being a flake, and having a width of about 0.10 in to 0.5 in, a length of about 0.08 in to about 0.2 in, and a thickness of about 0.01 in to 0.02 in;
- and
- v) a carrier fluid;
- and
- b. forming a plug to seal at least one fracture in the fractured subterranean formation, the plug comprising particles of the first, second, third, and fourth type.
A method for treatment of a wellbore in fractured subterranean formation, the method comprising the steps of:
- a. introducing into the wellbore a treatment fluid comprising:
- i) 5 to 20 wt % of a first type of particle, the first type of particle having a particle size from 2 mm to 3.5 mm and comprising a first degradable material;
- ii) 5 to 20 wt % of a second type of particle, the second type of particle having a particle size less than or equal to 0.6 mm and comprising a second degradable material;
- and
- iii) 60 to 90 wt % of a third type of particle, the third type of particle being elongated in shape, having a width from 0.7 mm to 1.2 mm, having a length from 1.5 to 5 times the width, and comprising a ceramic material, the ceramic material comprising aluminum oxide;
- and
- iv) a carrier fluid;
- and
- b. forming a plug to seal at least one fracture in the fractured subterranean formation, the plug comprising particles of the first, second and third type.
Dependencies are inferred from the claim text.