Announcing Play Specific Workflows

Preview of Delaware Wolfcamp Rate Transient Analysis Guidelines
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Our Play Specific Workflows provide a flexible but robust set of guidelines for RTA practitioners working in the Delaware Wolfcamp

This document provides a flexible but robust set of guidelines for RTA practitioners working in the Delaware Wolfcamp.

These guidelines are intended to be used with commercial software applications, primarily the IHS Markit Harmony(TM) software. However, they are written in a generic enough manner that the workflow can be interpreted using any software, including customized tools developed by individual practitioners.

As a pre-requisite, all practitioners should have successfully completed Saga Wisdom’s course “Production Data Analysis for Unconventional Reservoirs”.
The material described in this document is based primarily on the authors’ experience using RTA specifically in this play (and other similar plays). However, many of the input values required to perform RTA necessitate multidisciplinary knowledge and expertise.

Where appropriate, techniques and associated assumptions relating to these inputs (with associated references) are provided. In addition, a real production data example is used as the common “thread” for each workflow component, illustrating both the procedure and specific results for the example. Locational / operator data for the example has been removed to ensure anonymity.

The guidelines provided herein are designed to maximize actionable knowledge that can be efficiently extracted from daily production and flowing pressure data from the Delaware Wolfcamp. Some examples of results are:

• Objective ranking of completion effectiveness among individuals within well groups

• Optimization of completion design to maximize recovery at a fixed completion cost

• Optimization of well spacing to maximize recovery for the asset while meeting minimum per/well recovery criteria

• Robust and repeatable workflow for reserves evaluation and auditing

• Validating volumetrics and petrophysics – particularly related to initial oil and water saturation

• Validation and integration of disparate data sources- DFIT, Fiber Optics (DTS, DAS), Core/logs, Frac models, Microseismic mapping.