公开(公告)号：EP3165710A1

公开(公告)日：2017-05-10

申请号：EP15290283.9

申请日：2015-11-05

申请人： Geoservices Equipements

发明人： Bertrand, Paul ,  Banik, Patrick ,  Breviere, Jerome ,  Bentamy, Nassim

IPC分类号： E21B49/00 ,  E21B21/06

CPC分类号： E21B21/067 ,  E21B49/005

摘要： A gas-extraction device (52) for extracting at least one gas contained in a drilling mud, the device comprising an enclosure (62), an equipment (64) for supplying the drilling mud to the enclosure (62), and an equipment (70) for introducing a carrier gas into the enclosure (62).
The device further comprises a flow regulator (104) able to regulate the flow rate of a gas flow containing at least carrier gas, and a pressure controller for locally setting a pressure distinct from the pressure of the enclosure (62). The flow regulator (104) is interposed between the pressure controller and the enclosure (62) and the pressure controller is configured so that the one of the pressure controller and enclosure (62) which is situated upstream from the flow regulator (104) has a higher pressure than the one situated downstream.

摘要翻译： 一种用于抽取包含在钻井泥浆中的至少一种气体的抽气装置（52），所述装置包括外壳（62），用于将钻井泥浆供应到外壳（62）的设备（64）以及设备 70），用于将载气引入外壳（62）中。 该装置还包括能够调节至少包含载气的气流的流量的流量调节器（104）以及用于局部设定不同于外壳（62）的压力的压力的压力控制器。 流量调节器（104）插入在压力控制器和外壳（62）之间，并且压力控制器构造成使得位于流量调节器（104）上游的压力控制器和外壳（62）中的一个具有 比位于下游的压力高。