Hz Wells Completion Design Optimization

Hz Wells Completion Design Optimization

Hz Wells Completion Design Optimization

OVERVIEW

A year a half into the development of a prolific unconventional field, an onshore operator requested to optimize future frac designs by making the best use of existing completion and well performance data, and following a more robust engineering approach to fit-for-purpose frac design with the goal of maintaining or increasing IP and EUR while reducing completion costs

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Solutions:

Conducted in-depth historical data analysis to evaluate the effects of proppant type/size, frac fluid type and composition, volume and other key frac design parameters on well performance.

Coordinated conductivity tests for selected proppant types and sizes using actual formation core slabs and fluid composition.

Requested and oversaw regained permeability tests for the frac fluid packages considered for new wells.

Recalibrated the existing geomechanical models with new fracture diagnostics data.

Developed frac designs to achieve the target stimulated reservoir volume and effective fracture conductivity with the use of an advanced 3-D frac simulator and data obtained from the conductivity and regain perm tests.

Requested and oversaw regained permeability tests for the frac fluid packages considered for new wells.


Results:

The normalized production of the wells completed following this methodology and design was comparable to analog wells previously completed at a higher cost.

Average cost reduction per well was $400k.