A Better Well and Better Fracturing Improve Production in B-Field, Offshore Northwest Java (original) (raw)

Day 3 Thu, October 14, 2021

Abstract

B-Field is located in Northwest Java and holds potential hydrocarbon in its low-quality marine sandstone reservoir, BR-34A and BR-34B zones. Each zone has a permeability range between 5 and 12 mD and can only produce approximately 20 to 50 BFPD without stimulation, making the well a non-economic producer. In 2020, two infill development wells, A-08 and K-08, were drilled targeting these zones. Both wells were planned to be completed with hydraulic fracturing stimulation to boost the production. The first well, A-08 was completed earlier than K-08, but the production result from the well was unsatisfactory. The pressure evaluation analysis indicated high near-wellbore pressure of more than 1,000 psi. There were no reliable mechanical properties data in the well, which led to a conservative final hydraulic fracture design to avoid fracture growth into the nearby watered-out zone, BR-35. Therefore, only 30,000 lbm of proppant were pumped, resulting in minimal proppant concentration in ...

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