Westside - Completion and Well Performance Results: Genesis Field, Deepwater Gulf of Mexico

The Genesis Project was Chevron''s first deepwater development project in the GOM and also the first industry project to utilize the spar technology for drilling, completion and production operations. An integrated team approach was adopted for planning and execution of the well program. A single-source supplier was selected for the majority of the completion services with compensation linked to performance. A software-based learning system captured improvement suggestions from all parties involved in the planning and execution phases, as well as post-analysis lessons learned. A testing program was employed to develop many successful completion products and processes.

Perforating practices evolved to address well productivity and mechanical risks from gun debris. High well productivity and low skin factors were achieved from both underbalanced and overbalanced perforating. Debris from steel and zinc-cased shaped charge gun systems were investigated and processes to manage the debris were implemented.

Frac pack completions were performed on all of the wells. Gravel pack screens and proppants appropriate for each formation were utilized. Data from radioactive tracer logs influenced frac pack processes such as service tool design and procedures, pump rates, stimulation model attributes, perforating schemes, and proppant scheduling.

Permanent downhole gauges were useful in monitoring well productivity over time.  Compaction related permeability reduction exceeded proppant permeability reduction, resulting in decreasing skin factors. The data from these gauges were also useful for decreasing the flowback time of new wells, quickly identifying the need for well stimulation, and providing data for rigorous reservoir simulation.

Location: The Westlake Club

Date: Oct. 15, 2003, 11:30 a.m. - Oct. 15, 2003, 1:30 p.m.