A leak off test will be conducted in 13 3/8 in. casing having an internal diameter of 12.515 in. set at 3000 ft. The test will be conducted after drilling to 3030 ft. with a 12.25 in. bit. Drillpipe having an external diameter of 5 in. and an internal diameter of 4.276 in. will be inserted to a depth of 3000 ft to conduct the test. A 10 ppg water base drilling mud containing no oil and a total volume fraction of solids of 0.09 is used. The gel strength of the mud is 14 lbm/100 sq ft. the well is normally pressured. Prepare a leak off test chart by placing the anticipated leak off pressure line and slope line on a plot of pressure vs. depth. Use one of fracture gradient correlations.

A leak off test will be conducted in 13 3/8 in. casing having an internal diameter of 12.515 in. set at 3000 ft. The test will be conducted after drilling to 3030 ft. with a 12.25 in. bit. Drillpipe having an external diameter of 5 in. and an internal diameter of 4.276 in. will be inserted to a depth of 3000 ft to conduct the test. A 10 ppg water base drilling mud containing no oil and a total volume fraction of solids of 0.09 is used. The gel strength of the mud is 14 lbm/100 sq ft. the well is normally pressured. Prepare a leak off test chart by placing the anticipated leak off pressure line and slope line on a plot of pressure vs. depth. Use one of fracture gradient correlations.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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