The Study Of Track Control About 6 "Horizontal Wellbore

Horizontal well technology was made in the 1920 of the 20th century, 1940 put, 1980 have been in the United States, and Canada, and France and other countries have widespread industrial application, and thus forming a unit study, the highlight of the application of horizontal well technology, drilling technology in oil industry on low-cost, low-pollution, accurate trajectory, high yield technology needs, promoting horizontal well number increased.I study the mechanical analysis,performance of buildingangle about 6〃-wellbore combinedand well track with the ture wellbore in jidong oilfield based on mechanics theory of rock in this paper.At last,make a det drilling technology about 6〃-wellbore depend on field investigation.Designed to drilling assembly meet the 6 "hole horizontal wellwell, optimize the way of slide drilling and rotary drilling, make path control,downhole safety and drilling speed united. Confirm the general method about top of reservoir , put forward the new viewpoint to detect the top of reservoir by tiny increase inclined composite drilling,Formed suitable for complex fault block reservoir with horizontal borehole trajectory control geosteering new idea; Formed a new idea about horizontal borehole trajectory control geosteering for complex fault block reservoir.