Horizontal completions are the most costly part of onshore unconventional projects — often consuming 60% or more of a well’s budget. While technology for directional drilling in unconventional fields has seen marked improvement in recent years, unconventional completion capabilities have not increased as quickly. Weatherford aims to raise the bar on unconventional completions with an integrated solution that combines our hydraulic fracturing, completion, formation evaluation, and reservoir engineering technologies and expertise to improve well productivity and hydrocarbon recovery.
Optimizing stage design and perforation placement based on critical data
Determining the cause of rapid production drops and chronically underperforming wells
Selecting the right equipment to minimize the cost of completing long laterals
Our integrated approach to optimizing completion design and, ultimately, production in unconventional fields is exemplified through our FracAdvisor® solution. The FracAdvisor solution leverages Weatherford’s experience in unconventional fields to deliver geo-engineered completion designs.
The FracAdvisor solution integrates data from a range of sources including wireline and logging-while-drilling (LWD) logs, lab tests, and core analysis. Our proprietary, basin-specific algorithms provide consistent stage and perforation placement and are validated using production records from nearby wells.
Leveraging the knowledge gained during the data analysis step, we determine perforation and/or packer placement alongside stage-by-stage frac modeling.
Once the optimal design is ready to put in place, we select the right proppant type and loading. Biodegradable agents further enhance perforation‑cluster efficiency and provide the temporary zonal pressure isolation necessary for well refracturing.
Technology is at the heart of our approach to meeting clients’ needs. We constantly update and refine our technologies to solve new challenges encountered in the field.
The ZoneSelect system is a unique family of lower‑completion technologies, including mechanical and swellable packers, high‑torque frac sleeves, and durable composite plugs. The suite comprises solutions for openhole completions, coiled-tubing stimulation, and multizone fracturing treatments.
The TBlockSure temporary diverting and fluid‑loss‑control agent enhances zonal isolation during stimulation and workover applications. The agent is made of a degradable mesh that provides temporary mechanical diversion and then dissolves, minimizing cleanup and shortening the time to production.
Sonic logs are among the most important data sets when determining the presence and character of natural fractures. The CrossWave azimuthal sonic tool captures 360° borehole images that reveal compressional and shear waveforms as well as rock mechanical properties. By enhancing the amount of information available to completion engineers, these logs enable more efficient fracturing operations without adding to the total rig time.
The SlimWave array tool acquires microseismic data that is used to produce a “frac map” — a visual representation of the height, length, and azimuth of the area affected by a hydraulic fracturing job. From this detailed picture, completion engineers can determine where the rock is breaking and estimate how far into the reservoir the proppant has traveled.
The StealthFrac system combines multiple features to optimize plug-and-perf completions in large-bore and extended-reach applications. The large inner diameter enhances flow, the ability to remain downhole throughout production enables access to longer laterals, and the metallic hybrid InvisiBall™ stimulation ball eliminates the need for millout.
The combination of our industry-leading technologies and our disciplined approach has produced measurable value for our clients.