The following pressure history was recorded during a hydraulic fracturing treatment of the sandstone formation at 10,000 ft

•(a) What is the fracture initiation pressure?

•(b) What is the instantaneous shut-in pressure?

•(c) Calculate the frictional pressure gradient.

•(d) If the specific gravity (at average well temperature) of the fracturing fluid is 1.1, what is the fracture gradient?

•(e) What is the bottomhole treating pressure (fracture propagation pressure)?

•(f) What would be the pressure on the proppant immediately after the fracture treatment if the formation pressure is 5000 psi?

• (h) If the bottomhole flowing pressure is 3500 psi during production, what is the pressure on the proppant?

Answer rating: 100% (QA)

ANSWER Here are the answers to each question a Fracture initiation pressure The fracture initiation pressure is the pressure at which the fracture process begins To determine this we need to look at t... View the full answer