Ultra-High Sand Concentration in Hydraulic Fracturing-A Case History (SPE 11578)

Summary

Documented the results from two fields showing tremendous benefit when achieved sand concentrations were increased from 0.7 to 3.4 lb/ft2.  After conventional fracturing, ten shallow oil wells in Oklahoma averaged less than 2 bopd production, which was increased over 9-fold with high conductivity fractures.  The Oklahoma case study wells were around 3300 ft. depth with 0.5 md permeability.

Abstract

Because of their success, ultra-high sand concentration (USC - a commonly used field acronym) treatments have become very popular in Oklahoma. To-date, more than 50 wells have been completed using USC treatments.

This paper presents the state-of-the-art on USC in hydraulic fracturing with field data and documented results. Case histories of the two representative wells selected from different areas of the state, are discussed in detail in the paper. Well production data before and after the USC treatments, production data before and after the USC treatments, are compared. A detailed USC job design procedure is also outlined. Furthermore, some suggestions are made to help the reader in designing and conducting USC treatments.

Category 1: CARBO Benefits Improved Frac Conductivity,Oil Wells
Sub Category 1: Less than 6000 ft depth

Paper Number: SPE 11578

Source: SPE Production Operations Symposium, 27 February-1 March 1983, Oklahoma City, Oklahoma

URL: http://www.onepetro.org/mslib/app/Preview.do?paperNumber=00011578&societyCode=SP...