Abstract

Obtaining high quality geological and geophysical data for formation evaluation can be expensive, both in terms of rig time and contractor costs. TOTAL Indonesie, however, has seen a progressive decline in evaluation costs without a reduction in the quality and quantity of the data acquired.

TOTAL Indonesie's standard open hole evaluation suite includes array induction resistivity, digital sonic, litho-density, compensated neutron, gamma ray, and advanced wireline formation testing. Oil base dipmeter and VSP data are also acquired as needed.

The critical path to realizing a significant evaluation cost reduction includes:

• Effective application of new technology.

• Pre-planning and optimization of the logging program with the contractor.

• Standard Operating Procedures focused on efficiency.

• Effective contract procurement and negotiation.

• Use of logging while drilling technology in specific circumstances.

Upon effective implementation with six rigs in 1998, TOTAL Indonesie has realized a reduction in logging related to operating time by 28%. All efficiency efforts have reduced the overall logging cost by MMS$ 10.00. Savings of this magnitude are achievable and significant, especially at a time of low commodity prices.