Procedure for Calculating Estimated Ultimate Recoveries of Wells in the Wolfcamp Shale of the Midland Basin, Permian Basin Province, Texas

Scientific Investigations Report 2020-5042
By:

Links

Abstract

In 2016, the U.S. Geological Survey published an assessment of technically recoverable continuous oil and gas resources of the Wolfcamp shale in the Midland Basin, Permian Basin Province, Texas. Estimated ultimate recoveries (EURs) were calculated with production data from IHS MarkitTM using DeclinePlus software in the Harmony interface. These EURs were a major component of the quantitative resource assessment. For five of the six assessment units in the study, an industry operator in the Midland Basin provided information that was used to differentiate the Wolfcamp horizontal well landing zones. The IHS MarkitTM production database does not distinguish between the Wolfcamp A, B, C, and D well landing zones. These different units of the Wolfcamp have different production patterns that are important for calculation of EURs. The calculated mean EURs for each assessment unit ranged from 99,000 barrels of oil in the Wolfcamp C to 142,000 barrels of oil in the Wolfcamp A.

Suggested Citation

Leathers-Miller, H.M., 2020, Procedure for calculating estimated ultimate recoveries of wells in the Wolfcamp shale of the Midland Basin, Permian Basin Province, Texas: U.S. Geological Survey Scientific Investigations Report 2020–5042, 5 p., https://doi.org/10.3133/sir20205042.

ISSN: 2328-0328 (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Procedure
  • Results
  • Summary
  • References Cited

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Procedure for calculating estimated ultimate recoveries of wells in the Wolfcamp shale of the Midland Basin, Permian Basin Province, Texas
Series title Scientific Investigations Report
Series number 2020-5042
DOI 10.3133/sir20205042
Year Published 2020
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Central Energy Resources Science Center
Description iii, 5 p.
Country United States
State Texas
Online Only (Y/N) Y
Google Analytic Metrics Metrics page