专利名称：Spillproof oil well seal发明人：Walter H. Rode申请号：US07/665076申请日：19910306公开号：US05067563A公开日：19911126
摘要：A spillproof sealing system for hydrocarbon-producing wells which produce gasand crude oil is provided. The sealing system includes a liquid sealing element whichcooperates with a gas sealing component positioned about the well polished rod to sealthe well against crude oil leaks while simultaneously providing sufficient oil to lubricateand cool the polished rod during well operation. A liquid/gas separation chamber isprovided to receive gas from the well that has been pressurized by a compressor to sealthe gas sealing component. Excess gas and crude oil are returned to the well productionline. Liquid level sensing and switch means are further provided to automatically shutdown the well motor if the crude oil level in the liquid/gas separation chamber exceedsan established minimum level.
申请人：RODE; WALTER H.
代理机构：Sixbey, Friedman, Leedom & Ferguson
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