发明名称 |
DATA COMMUNICATIONS SYSTEM |
摘要 |
A data communications system and method for transmitting data over a string between a surface location and a sub-surface location in a well bore in which a load varying device at the sub-surface varies the mechanical load on the string to be indicative of the data and a load measuring apparatus at surface monitors the mechanical load on the string and decodes the data. Data transmission is described from a pump assembly through a sucker rod string. Embodiments of load varying devices using electrical generators, friction rollers and hydraulic and pneumatic brakes are also described. |
申请公布号 |
WO2014174266(A8) |
申请公布日期 |
2016.01.07 |
申请号 |
WO2014GB51235 |
申请日期 |
2014.04.22 |
申请人 |
ZENITH OILFIELD TECHNOLOGY LIMITED |
发明人 |
SHANKS, DAVID SIRDA |
分类号 |
E21B47/12;E21B43/12;E21B47/00;E21B47/16 |
主分类号 |
E21B47/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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