11. Other companies'directional drilling tools also carry measurement-while-drilling instruments. 12. Horizontal directional drilling is done with the help of a viscous fluid known as drilling fluid. 13. Smith also will get Wilson's Houston Engineers, a unit specializing in directional drilling services and equipment. 14. In 1988, Michels began a new method known as horizontal directional drilling to construct underground utilities. 15. Its thickness and homogeneity does make it a common target for carrying out directional drilling manoeuvers. 16. The 20-inch diameter line has been sunk 28 feet deep under the Sitalakhya river bed through'directional drilling 'procedures. 17. Locating multiple wellheads within a single glory hole is made possible by the use of directional drilling . 18. A "'rotary steerable system "'( RSS ) is a form of drilling technology used in directional drilling . 19. Combined, these survey tools and BHA designs made directional drilling possible, but it was perceived as arcane. 20. Oilfield applications include using Monel ( rarely-see directional drilling above ) in both flex and slick collars.
