Final Report : Harsh - Environment Packaging for Down - hole Gas and Oil
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منابع مشابه
Designing a High Resistant, High-torque Downhole Drilling Motor (RESEARCH NOTE)
Downhole drilling motors or mud motors are frequently used during the oil and gas well construction, especially for construction of directional and horizontal segments. However, low operation life of the down hole drilling motors and high rate of wear in their working elements may constrain their application due to technical and economical disadvantageousness. In this work, a high-torque modula...
متن کاملEnergy Delivery at Oil and Gas Wells Construction in Regions With Harsh Climate
Energy delivery at well construction in regions with hard climate is distinguished by variable demand in electric and heat power. Energy consumption of drilling equipment, production and living facilities varies greatly during the year, depending on power load charts and climate conditions. Power supply of remote well construction sites is mostly accomplished by operating autonomous power sourc...
متن کاملComparison of silicone oil versus gas tamponade in the treatment of idiopathic full-thickness macular hole.
PURPOSE To compare anatomic and functional outcomes of macular hole surgery with either silicone oil or C(3)F(8) gas tamponade. DESIGN Retrospective comparative interventional study. PARTICIPANTS Fifty-four eyes of 51 patients underwent pars plana vitrectomy for macular holes. Thirty-one eyes were treated with silicone oil tamponade, and 23 eyes were treated with C(3)F(8) tamponade. METHO...
متن کاملFull Thickness Macular Hole Closure after Exchanging Silicone-Oil Tamponade with C3F8 without Posturing
PURPOSE To report a case of macular hole closure after the exchange of a silicone-oil tamponade with gas C(3)F(8) 14%. METHOD A 64-year-old female patient with a stage IV macular hole underwent a three-port pars-plana vitrectomy and internal limiting membrane peeling. Due to the patient's chronic illness (respiratory problems), a silicone-oil tamponade was preferred. However, the macula hole ...
متن کاملLong term result of silicone oil versus gas tamponade in the treatment of traumatic macular holes
PURPOSE To compare the effectiveness of pars plana vitrectomy (PPV) with either silicone oil or gas tamponade for the treatment of traumatic macular holes. METHODS A retrospective comparative study included 22 patients who were operated on by PPV for repair of traumatic macular holes with either silicone oil tamponade (nine patients) or perfluoropropane (C(3)F(8)) gas tamponade (13 patients)....
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تاریخ انتشار 2007