1. 2) D. L. George, E. B. Bowles: Shale gas measurement and associated issues, Pipeline & Gas Journal, 2011 July, 38-41
2. 4) R. Wright Rib-steered motor technology extends CT drilling applications, World Oil, 2012 Oct., 135-139
3. 5) M. Sach, J. Li: Repeatedly increased efficiency and success rate from a new solids-cleanout process using coiled tubing; A review of recent achievement from more than 100 opera-tions, SPE Production & Operation, 2008 Aug., 379-390
4. 9) H. Prejean: Ultrasonic Wall Thickness Measuring of Oil Country Tubular Goods, Pap. Summ. ASTN Conf. Quality Test Show, 2012 Fall, 172-178
5. 11) R. Wright: Coiled tubing equipment and applications are still evolving, World Oil, 2012 Oct., 133