Reducing time to drill to TD is a key factor in improving drilling efficiency. ROP, reduced trips, build angle, lateral length, drilling fluids, and hole quality all play a role in improving drilling efficiency and economics. From fluid systems to the BHA, Schlumberger has the most complete drilling technology offering in the industry.
Well-spacing regulations and reduced environmental footprint are just some of the reasons why extended-reach laterals are becoming more common. Drilling technologies such as interactive 3D well path design, specially designed drill bits, and rotary steerable systems help you drill longer laterals—faster, more reliably, and with greater accuracy and increased overall drilling efficiency. Rotary steerable systems also create smoother boreholes that do not require hole conditioning to run production casing, and they deliver higher build rates that allow you to drill deeper before kickoff, enabling greater reservoir contact.
Shale reservoir rock quality can be highly variable in relatively narrow vertical and horizontal sections. Shale zones also tend to undulate. Real-time acquisition, interpretation, and integration of downhole measurements can help prevent unexpected drilling events and keep your wellbore in the most productive zones. Evaluating the formation with LWD or MWD tools gives you the assurance you need to reduce risk and maximize results.
High-pressure, high-temperature shales can be challenging for drillers. Advanced drilling fluids that provide borehole strengthening, limit lost circulation, and adhere to ever-stricter environmental regulations are required. Optimal drilling fluids often differ between different shale plays and require knowledge of what fluids are most successful. Choosing the best fluid can also help you drill faster and better.
The CARBONTRACKER gas-flow meter measurement system installs directly into the flare line to provide real-time, accurate gas-flow measurement and composition. It can detect and measure gas flows as low as 0.1 ft/s to quantify formation production potential. Measuring the amount of gas being flared or vented while drilling helps improve well delivery efficiencies and allows you to better quantify and reduce environmental impact.
Geoservices, a Schlumberger company, delivers mud logging services, with a focused competence in formation evaluation and drilling support. Through the intelligent use of all available data—geological, hydrocarbon, surface drilling, and downhole drilling data—from our advanced acquisition systems, we assist your critical decision making to maximize safety and quality and to maintain cost control.
Through fluid logging and analysis in real time we can obtain a unique quantitative analysis of C1–C5 and qualitative information on the C6–C8 components, including methylcyclohexane and light aromatics, in gas extracted from drilling mud, unaffected by drilling conditions such as mud type and temperature. This key information helps you better understand the producibility of intervals along the borehole and enables smarter completions.
Find details about the Schlumberger technologies that are optimizing drilling in shale plays worldwide.