During squeezing in the crossover method, where does the carrier fluid go and what is deposited?

During squeezing in the crossover method, where does the carrier fluid go and what is deposited?

• A. In the casing annulus
• B. In the surface facilities
• C. In the screen cavity
• D. During squeezing the carrier fluid leaks off to the formation, placing gravel in the perforation tunnels.

Answer: (D)

In this squeezing scenario, the fluid that carries the gravel is purposefully displaced into the formation as pressure is applied. The carrier fluid leaks off into the surrounding rock through the perforations, while the gravel particles are left behind and lodge in the perforation tunnels, forming the gravel pack. This packed region stabilizes the formation near the wellbore and prevents sand production. The other destinations aren’t consistent with the goal of a gravel squeeze: sending fluid into the casing annulus, surface facilities, or the screen cavity would not create the protective gravel pack where it’s needed and could clog equipment or waste material.

In this squeezing scenario, the fluid that carries the gravel is purposefully displaced into the formation as pressure is applied. The carrier fluid leaks off into the surrounding rock through the perforations, while the gravel particles are left behind and lodge in the perforation tunnels, forming the gravel pack. This packed region stabilizes the formation near the wellbore and prevents sand production.

The other destinations aren’t consistent with the goal of a gravel squeeze: sending fluid into the casing annulus, surface facilities, or the screen cavity would not create the protective gravel pack where it’s needed and could clog equipment or waste material.