-
公开(公告)号：EP2666038A2
公开(公告)日：2013-11-27
申请号：EP12744806.6
申请日：2012-02-07
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , Prad Research And Development Limited
发明人： CHIROVSKY, Leo , DURKOWSKI, Anthony , HILES, Kevin , REIJONEN, Jani , SIMON, Matthieu , WRAIGHT, Peter
CPC分类号： H01B19/04 , E21B47/01 , Y10T29/49227
摘要： A well logging instrument includes an instrument housing to traverse a wellbore penetrating subsurface formations. An electrically operated energy source that emits ionizing radiation is disposed inside the housing. An insulating sleeve is disposed between the energy source and an interior wall of the housing. The insulating sleeve comprises a thin dielectric film arranged in a plurality of tightly fitting layers of dielectric material disposed adjacent to each other and successively. A thickness of each layer and a number of layers is selected to provide a dielectric strength sufficient to electrically insulate the energy source from the housing and to provide a selected resistance to dielectric failure resulting from the ionizing radiation.
摘要翻译： 测井仪器包括穿过穿过地下地层的井筒的仪器外壳。 发射电离辐射的电动能源设置在壳体内部。 绝缘套筒设置在能量源与壳体的内壁之间。 该绝缘套管包括一个薄的介质膜，该介质膜被布置在多个彼此相邻并相继布置的介电材料的紧密配合的层中。 选择每个层的厚度和多个层以提供足以将能量源与外壳电绝缘的介电强度，并提供由电离辐射引起的对介电失效的选择的抗性。
-
2.发明公开PULSED NEUTRON GENERATOR TUBE DESIGN WHICH EXTENDS THE LIFETIME OF A CATHODE 有权一种用于操作脉冲中子发生器的管道用于阴极延伸出来的LIFE
公开(公告)号：EP2795372A1
公开(公告)日：2014-10-29
申请号：EP12861003.7
申请日：2012-12-19
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , Prad Research And Development Limited
发明人： CHIROVSKY, Leo , PERKINS, Luke , REIJONEN, Jani , VILDE, Loic
CPC分类号： E21B47/00 , G01N23/005 , G01N33/24 , G21G4/02 , H05H3/06
摘要： A method for operating a pulsed neutron generator including an ionizer with an electron emitting cathode and a grid wherein the cathode and grid are disposed in a sealed chamber. At least one of the following is applicable to the ionizer; a distance between the cathode and the grid, a cathode current and/or a potential on the grid are selected such that the ionizer operates at most about one-half the space charge limited current for a grid current selected to provide a predetermined amount of neutron production.
-
3.发明授权METHOD FOR OPERATING A PULSED NEUTRON GENERATOR TUBE WHICH EXTENDS THE LIFETIME OF A CATHODE 有权一种用于操作脉冲中子发生器的管道用于阴极延伸出来的LIFE
公开(公告)号：EP2795372B1
公开(公告)日：2016-04-27
申请号：EP12861003.7
申请日：2012-12-19
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , Prad Research And Development Limited
发明人： CHIROVSKY, Leo , PERKINS, Luke , REIJONEN, Jani , VILDE, Loic
CPC分类号： E21B47/00 , G01N23/005 , G01N33/24 , G21G4/02 , H05H3/06
-
-
搜索结果
3 条记录 (耗时 0.018 秒)
