Integral Analysis of Production Behavior of Horizontal Wells Associated to the First Polymerized Water Injection Pilot Project in Unconventional Reservoir: Zuata Principal Field, Venezuela

Ramirez, Andres Eduardo (PDVSA Petrocedeño) | Quevedo, Luis David (PDVSA Petrocedeño) | Ulacio, Ivon Maria (Universidad de Oriente, Venezuela) | Martin Vasquez, Edgar (PDVSA Petrocedeño)


This paper submits the monitoring methodology applied to horizontal wells associated to the First polymerized water injection pilot project, developed in Zuata Principal Field from Hugo Chavez Orinoco Oil Belt (Venezuela). Zuata Principal is a mature field, formed by unconsolidated sands of deltaic and fluvial sedimentary environments, saturated with extra heavy crude of API gravity between 8.5 to 9.5, and viscosities between 2000 to 5000 cp at reservoir conditions. The basic units of production construction (Clusters) are mostly made of horizontal wells perforated in a radial pattern, which operate under the artificial lifting method of progressive cavity pump (PCP). The pilot project was developed in a deltaic environment. As a part of the surveillance plan of the project, it was established one methodology for the control of the producer wells, using the following sources of information: - Measurements of pressure and temperature at bottom hole (real time), using multiple pressure and temperature sensors placed in the horizontal section and temperature distributed sensors, meaning fiberoptic sensors.