Evaluating the production and reserves potential for wells in a Miocene Reservoir
Client : Houston-based Independent
Location: Matagorda Island
Objective: Provide geological modeling and reservoir simulation for a Miocene Reservoir
A Houston-based Independent contracted Knowledge Reservoir to provide a reservoir modeling study in
the Matagorda Island field, located in the western part of the Gulf of Mexico. Production from the
reservoir commenced in 1982 with three wells. By early 2006, 12 completions were producing from the
reservoir.
The main objectives of this study were to:
• Develop a geological model of the reservoir in Petrel and upscale it for simulation in Eclipse.
• Create a reservoir simulation model in Eclipse to evaluate the production and reserves potential for
recent and planned wells in the reservoir.
The geological model included variable facies and rock properties tied to well log data. The simulation
model incorporated the results of recent drilling and provided a history match of prior production and
pressure performance. The modeling confirmed original gas in-place (OGIP) and forecasted gas rates
and ultimate recovery for several recent and planned wells. The forecasting incorporated measurements
of drawdown and rates from production logging to determine base case skin factors and maximum
drawdowns.
