Performance Summary Corion Express 4.0 Premium Wireline Coring

Objective To core +/- 1,300ft in 12 vertical offshore well using the 4.0 Express Coring System and a 8 3/8 CEPH713S / CEPF713S Core bits. Formations to be cored - Ahmadi, Wara, Mauddud, Safaniya Khafji & Biyadh . Lithology mainly limestone & sandstone/siltstone.

Results 6 x 3 x 60ft Corion Express 4.0 successfully cored 1,302.5ft in 23 runs at an average ROP of 32.5ft/hr with a 99.7% recovery rate.

NOV Corion Express System proved its versatility utilizing wireline coring and saving 7 days Offshore rig time with cost saving of approx. $650K, well SFNY 1040, Q2 2014.

Well Information Operator: Saudi Aramco Rig: PA 660 Well: SFNY 1040 Hole Section: 12 1/4 Coring System: 8 3/8 x 3 x 60ft (Corion Express 4.0)

Achievements: All objectives were successfully achieved; Cored 1,302.5ft in 23 runs from 4,578.3-5,679.1ft and 6,688-

6,893ft with 99.7% recovery Saves 7 days of offshore rig time Estimated saving of $ 650K 60ft Express coring assembly used successfully for the first

time on an offshore application One instance of core jamming successfully identified by the

JamDicator system Well Control using Full bore TIW , Side entry sub and Pack off

assembly Core handling ; Core transported from rig floor with laydown

support cradle - Cutting core in 1m sections using air saw, Capped, Clipped and Bubble wrapped.

8 3/8 x 3 CEPH713S

FEATURES: Wireline trips use 85% less time than tripping pipe 4.0 system utilizes 4 ID standard drill pipe Quick core to surface by wireline retrieval JamDicator system & hydraulically seated barrel Corion Express Drilling & Logging Modes

BENEFITS: Substantial Rig Time Savings More convenient & cost effective to use 4 ID drill pipe Better Gas Desorption Analysis Immediate jam detection & quick jam remediation More core analysis options than standard wireline Eliminates tripping pipe to change BHA

Demand the Best Contact your NOV representative to find out how you can obtain best available coring technology for your coring needs.

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