American Oil and Gas Reporter - August 2020 - 57

pages 56-57_Layout 1 8/12/2020 12:00 PM Page 2

Helps Operators Assess
Parent/Child Well
Interactions
By David C. Johnson, Bryce B. Yeager,
Christopher D. Roberts, and Brett W. Fowler
DALLAS-As Chief Oil & Gas LLC initiated full-scale reservoir
development of its Marcellus Shale leasehold in Northeast
Pennsylvania, it developed a framework to empirically analyze
and mitigate parent/child well interference to protect original
parent well completions and maximize child well completion
effectiveness.
To date, Chief's collaborative team has cataloged more than
70 offset events and classified 350 frac hits in the dry gas
window in Pennsylvania's Bradford, Sullivan, Susquehanna,
Wyoming and Lycoming counties.
The impetus behind this work was a pad in Bradford County,
where Chief had completed a single horizontal well in the
Lower Marcellus. Almost a year after flowing back the parent
well, a development plan was created to offset the original
well with a single child well. Given potential interwell interference
risk, Chief's Marcellus technical team was charged with giving
management a final recommendation on whether to proceed
with completing the child.

AUGUST 2020 57



American Oil and Gas Reporter - August 2020

Table of Contents for the Digital Edition of American Oil and Gas Reporter - August 2020

Contents
American Oil and Gas Reporter - August 2020 - Intro
American Oil and Gas Reporter - August 2020 - 1
American Oil and Gas Reporter - August 2020 - 2
American Oil and Gas Reporter - August 2020 - 3
American Oil and Gas Reporter - August 2020 - 4
American Oil and Gas Reporter - August 2020 - Contents
American Oil and Gas Reporter - August 2020 - 6
American Oil and Gas Reporter - August 2020 - 7
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