The drilling rigs used in shale development are usually "top-drive" rigs that are capable of "walking" short distances (on the order of 20 feet) in order to drill multiple wells on one well pad without the need to dis-assemble and re-assemble the rig between each well.
[pdf] Stand-alone, information-packed chapters of the 12th edition of the definitive rig operations manual, the new IADC Drilling Manual, are now available in convenient electronic form. More than 100 renowned technical experts contributed to the first major rewrite of the IADC Drilling Manual in 22 years.
[pdf] We can easily observe the shale shaker’s performance, and all aspects of its operation are visible. Shale shakers provide the advantage of not degrading soft or friable cuttings. Shale shakers can produce a r.
[pdf] 
