How it improves wells

DropShift* frac sleeve and DropShift Express* open-only frac sleeve enable continuous fracturing operations in multistage wells, improving stimulation efficiency, precision, and economics as compared with conventional plug-and-perf operations. DropShift sleeve also enables subsequent zonal shutoff to restrict water production or simplify selective zonal restimulation. The result is a longer producing life for the well.

As compared with conventional plug-and-perf technologies, DropShift and DropShift Express sleeves improve stimulation efficiency, precision, and economics. Because the sleeves are run into the well ahead of the stimulation operations, wireline is not required on location during stimulation. In addition, the large flow-through ID eliminates the need for poststimulation milling in most cases as frac balls are flushed back to surface or, in the case of degradable balls, dissolve completely. If milling is required, then the large ID eliminates concerns about milling debris flowback.

Both sleeves also reduce water consumption at the wellsite by eliminating water flushes typically required between plug-and-perf operations. The more accurate frac placement, as compared with plug-and-perf methods, reduces horsepower requirements and emissions during stimulation operations. The ability of DropShift sleeves to shut off water production later in the life of the well also eliminates concerns about treating or disposing of produced water.

Because they are shorter than conventional frac sleeve technologies, DropShift and DropShift Express sleeves are easier to install, which improves well construction efficiency. The sleeves’ large frac ports enable high fracturing and production rates.