Prospect theory: An analysis of decision under risk Econometrica 47
Prospect theory: An analysis of decision under risk Econometrica 47
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DOI：
10.1017/cbo9780511609220.014
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发表时间：
1979-12
期刊：
影响因子：
--
通讯作者：
D. Kahneman;A. Tversky
中科院分区：
文献类型：
--
作者：
D. Kahneman;A. Tversky
一种润滑器阀装置，适用于在海上油井生产测试期间下入电缆工具时使用。该阀包括具有中心通道的阀体和用于开启和关闭通道的球阀元件，响应表面控制压力的液压操作装置用于打开和关闭球阀，闩锁装置用于释放地将球阀保持在打开和关闭位置。旁通阀是指在开启球阀之前平衡球阀上的压力，并且设置在球阀的液压控制丢失的情况下，以响应施加在地面上的压力而打开生产管道，以提供井控流体的流动路径。
A lubricator valve apparatus adapted for use when running wireline tools into an offshore well during a production test of the well. The valve includes a valve body having a central flow passage and a ball valve element for opening and closing the passage, hydraulically operable means responsive to surface-controlled pressure for opening and closing the ball valve, latch means for releasably holding the ball valve in both the open and the closed positions, and bypass valve means for equalizing pressures across the ball valve prior to opening thereof and arranged in the event hydraulic control of the ball valve is lost to be opened in response to pressure applied at the surface to the production pipe to provide a flow path for well control fluids.