Schlumberger

Case Study: Drilling and Workover Efficiency Save USD 26 Million for PDVSA

Project Management Techniques Boost Output by 6,000 bbl/d in Venezuela

Challenge: Petr├│leos de Venezuela (PDVSA) sought more economical ways to drill and work over wells in Lake Maracaibo.

Solution: The Schlumberger Integrated Project Management (IPM) team and PDVSA formed a 10-year alliance in which Schlumberger operates an oil field on behalf of PDVSA to improve productivity and achieve shared goals. The project management scope covers all phases of operations, from planning to job execution and analysis.

Result: New practices and services have resulted in a production increase of 6,000 bbl/d above expectations, an 11% decrease in the cost per barrel produced, savings of USD 26 million for PDVSA, and improved geological field models.

More economical ways to drill and work over wells

As part of a late 1990s plan to increase production in Venezuela, PDVSA sought more economical ways to drill and work over wells in Lake Maracaibo. Schlumberger helped solve this challenge by applying an integrated approach to project management and introducing a range of new technologies.

Project management alliance

The companies formed a 10-year alliance, PRISA, in which Schlumberger operates an oil field on behalf of PDVSA to improve productivity and achieve shared goals. The project management scope covers all phases of operations, from planning to job execution and analysis.

By January 2000, the PRISA project was fully mobilized with 6 multipurpose drilling and workover vessels and 645 Schlumberger personnel in place. The PRISA project team creatively manages drilling and workover rigs and services, barges, tugs, and crew boats.

Production increase and cost savings

Schlumberger has introduced many new practices and services to the Lake Maracaibo project, resulting in:

  • a production increase of 6,000 bbl/d above expectations
  • an 11% decrease in the cost per barrel produced
  • savings of USD 26 million for PDVSA
  • improved geological field models.


As part of a late 1990s plan to increase production in Venezuela, PDVSA sought more economical ways to drill and work over wells in Lake Maracaibo. Schlumberger helped solve this challenge by applying an integrated approach to project management and introducing a range of new technologies.


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