Where are packers usually installed in a completed well? a. Between the casing a

Question

Where are packers usually installed in a completed well? a. Between the casing and formation wall b. Between intermediate and production casing c. Between production tubing and casing d. None of the above 9. In a cement job which of the following is a characteristic of the bottom plug? a. Separates drilling mud from cement slurry b. Has a diaphragm that ruptures in response to pump pressure c. Designed to wipe the inside of casing when pumped down the well d. All of the above Where is cement placed to complete a well after drilling? a. Between tubing and casing wall b. Between drill pipe and casing inner wall c. Between the formation surface and outer casing surface d. Within perforations Which of the following could cause a kick during the drilling of a well? a. Flow of formation fluids into the well b. Lost Circulation c. Cut Mud d. All of the above What is cut mud? a. Debris produced by mixing of drill bit cuttings and drilling fluids b. Drilling mud that is pumped into rock formations c. Drilling mud reduced in density by formation gas, oil, or water d. None of the above How can a kick be detected while drilling a well? a. More fluid flowing out of the well than is being pumped in b. A sudden increase in mud density c. A decline in the fluid level in the mud pit d. None of the above How are pressures while drilling controlled? a. Maintain mud hydrostatic pressure at the well bottom slightly lower than formation pressure b. Maintain mud hydrostatic pressure at the well bottom slightly higher than formation pressure c. Maintain mud hydrostatic pressure at the well bottom by a factor of 10 higher than formation pressure d. None of the above

Explanation / Answer

SOLUTION:-8.

Option (c) is correct.

The packer is a sealing device that isolates and contains produced fluids and pressures within the wellbore to protect the casing and other formations above or below the producing zone. This is essential to the basic functioning of most wells. The slip is a wedge-shaped device with wickers (or teeth) on its face, which penetrate and grip the casing wall when the packer is set. The cone is beveled to match the back of the slip and forms a ramp that drives the slip outward and into the casing wall when setting force is applied to the packer. Once the slips have anchored into the casing wall, additional applied setting force energizes the packing-element system and creates a seal between the packer body and the inside diameter of the casing.

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