Salt-gypsum bed complicates Tarim horizontal drilling

Yunhu LuMian ChenYan JinYawei LiKai FanUniversity of PetroleumBeijingXueqing TengNing LiTarim Oilfield Co.Korla, ChinaK.P. ChenArizona State UniversityTempe, Ariz.The Yingmaili gas-condensate field in the Tarim area of western China required various technologies to drill horizontal wells through a thick salt-gypsum bed.In the field, a Lower Tertiary sandstone formation contains the hydrocarbons that are trapped by an interbedded salt-gypsum-mudstone with an average 217-m thickness at a 4,700 m depth.To improve the production rate, well completions in the field require the drilling of horizontal laterals through the salt-gypsum mudstone.Complicating factorsThe vertical distance between the...

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