Invention Grant
US08210250B2 Methods and devices for one trip plugging and perforating of oil and gas wells 有权
油气井一次堵塞和穿孔的方法和装置

Methods and devices for one trip plugging and perforating of oil and gas wells
Abstract:
A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is designed to permit running and setting a bridge plug, and then perforating the well bore without requiring the removal of the tool string. An eccentric weight bar can also be used to allow for directional perforating in non-vertical wells. The eccentric weight bar uses gravity to cause the bar to rotate to a predetermined position.
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