Vertical tensioning and anti-rotational device for

专利名称：Vertical tensioning and anti-rotational device

for use with single continuous ropeconveyor lifting system

发明人：R. Gary Palmer申请号：US08/149079申请日：19931109公开号：US05348137A公开日：19940920

摘要：A vertical tensioning and anti-rotational device for use with a single continuousrope conveyor lifting system, the lifting system having a series of powered pulleysdisposed at the top of a well for continuously driving a rope in a closed loop into thewell, into and out of downhole fluids, and back to the top of the well, carrying a portionof such fluids out of the well. The device includes a tubular body open at one end, and atension bar telescoped into the open end. The tubular body and tension bar member areadapted to fit diametrically into a well bore. A spring biases the tension bar memberaway from the tubular body. Extension bar members are disposed on the opposite endsof the tubular body and tension bar member, and extend longitudinally axially along thewalls of the well bore. Sharp-edged rollers are disposed on the upper and lower ends ofthe extension bar members. The spring biases the rollers against the walls of the wellbore, and the rollers prevent the device from rotating. The conveyor rope loops arounda sheave mounted near the center of the upper surface of the tubular body. A deadweight is attached near the center of the lower surface of the tubular body.

申请人：PALMER; R. GARY

代理机构：Conley, Rose & Tayon

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