Procedures, Results, and Benefits of Detailed Fracture Treatment Analysis

Abstract

ABSTRACT Significant progress has been made in the last two to three years regarding massive hydraulic fracture treatment design and evaluation. Much of the progress stems from new techniques for analyzing downhole treating pressures and fracture heights. This paper presents the results of fracture treatment tests on two wells in a tight formation gas play. It gives procedures used for closure stress tests, fluid leak-off tests, and fracture treatment design. It also presents results of МНF treatment analysis to determine fracture length, height, and, in one well, reason for a screenout. The test results on the two wells showed both to have several hundred feet of fracture growth, probably below the perforated zone. This growth, identified by pressure response, was not detectable from post-fracturing temperature surveys. The techniques outlined in this study can be used to reduce treatment screenouts and increase treatment effectiveness in future stimulations.