Beijing Qihoo Technology Company Limited

China National Petroleum Corporation

Cnpc Drilling Research Institute

Beijing Petroleum Machinery Factory

Tiejun Li

Chen Wang

Chunhua Zhang

Guanghua Liu

Yanfu Huang

Xuping Liu

Qingkui Wu

Wenjing Yang

Zhangjian Li

Guoxing Yan

Hongjiang Shi

Qian Shi

Xingming Pan

Shikai Tao

Lianyang Zou

Chengqin Sun

Menggang Han

Xinli Liu

Zhiyong Zhou

Techniques for filtering information are described herein. In accordance with the present disclosure, a text acquisition module is configured to acquire text content to be filtered and a scanning module is configured to scan the text content to be filtered. The disclosed techniques scan the text content through a preset keyword dictionary, record a position of each keyword in the text content and acquire character pitch between keywords in the text content according to the position of each keyword in text content. A pitch judgment module is configured to judge whether the character pitch exceeds a preset character pitch and filter the keyword(s) in the text content in response to a determination that the character pitch exceeds the preset character pitch.

System and method for filtering keywords

An information transmission apparatus for logging while drilling comprises a hollow drilling rod and at least one cable. The drilling rod comprises at least one first drilling rod member and at least one second drilling rod member spliced to each other alternately. The first drilling rod member comprises a through hole, and the second drilling rod member comprises a stepped hole. The cable comprises a fixed end, a connected end, and a folded portion connect the fixed end to the connected end. Each of the cables is fixed in the stepped hole through a fixed end or is connected to a connected end of an adjacent cable. The connected end may be stretched along the stepped hole, and stretched through the through hole to be electrically connected to a logging instrument or a fixed end of the adjacent cable. The apparatus provides protection for a cable through a hollow drilling rod, thereby improving the transmission reliability.

Information transmission apparatus for logging while drilling

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Beijing, China

Tiejun Li