Combo services provide single-trip assessment of multiple designs

Overview

Two unconventional U.S. wells with very long laterals (10,000 feet/3048 meters) were the subject of a completion design evaluation. The objectives were to perform an erosion analysis and cluster efficiency analysis, diagnose fracture placement by identifying tracer presence pumped in some stages, and evaluate the impact of Prodigi™ and XLE services, and variable cluster designs at a high rate of fracturing. Well conditions were first reviewed and simulated by Halliburton Production Solutions to validate whether SPECTRUM® real-time coiled tubing services were capable of producing the desired results in a single run.

Halliburton uses SPECTRUM® Services to evaluate completion designs

A combination of three SPECTRUM services was needed to accomplish this job. The use of SPECTRUM Diagnostics services enabled the project team to perform distributed temperature sensing (DTS) and warm-back analysis to infer where fluids had entered the reservoir (the depths where injection into the reservoir occurred will exhibit more cooling and, therefore, will take longer to warm back to background temperatures after injection ceases). The SPECTRUM 360 camera provided visualization of well intervention services, aiding the diagnostic efforts with high-resolution images. And, finally, a SPECTRUM FUSION bottomhole assembly (BHA) loaded with gamma ray (GR) sensing capability helped identify the location of tracers – another important diagnostic tool in identifying key reservoir and completion variables that have a direct impact on well performance.

In a single run, Halliburton Production Solutions was able to provide the customer with a complete assessment of multiple completion designs used in two wells. This data will also benefit the design of future completion projects.