CASE STUDY Cost Reduction7

Intelligent tracers reduce drilling and intervention costOperator saves $17M in production logging and future drilling costs

ChallengeAn operator needed to evaluate the performance of reservoir intervals in a subsea frac-pack completion with two stacked sands to determine the economic viability of the lower interval without intervention or wired sensors.

Solution

Application

the facilities of the completion supplier. The well completion was run in-hole without deviating from normal procedures and with no additional rig time or extra personnel at site. The traced sand screens containing the two distinct

Although there was no mechanical isolation between the

Upper Sand 95%

5%LowerSand

Results

revealed that the lower sand was a minor contributor to production and, consequently, drilling and completing it was not economical. $7M in savings by not performing risky and costly production logging

performance information. saved an additional $10M by not drilling and completing the uneconomical sand in

HQ M. East

2,000

Cumulative Production Since Restart (bbls)

Model Fit

Trac

er C

once

ntra

tion

(ppt

)

3,000 4,000 5,000 6,000 7,000 8,000 9 ,000