sleeve 16 positioned in front of the telescoping elements 12 for injection or production of fluid fig1 shows the sleeve 16 positioned away from the telescoping elements 12 for pumping of proppant laden fluid into the formation in this embodiment none of the telescoping elements has a built in sand control medium a third type of shifting sleeve 16 is shown in fig1 and 15 this shifting sleeve 16 is a longitudinally shifting solid walled sleeve having a plurality of ports 24 the sleeve 16 shifts longitudinally to position the ports 24 either in front of or away from the fracturing elements 12 fig1 shows the ports 24 of the sleeve 16 positioned away from the fracturing elements 12 for injection or production of fluid through the sand control elements 14 fig1 shows the ports 24 of the sleeve 16 positioned in front of the fracturing elements 12 for pumping of proppant laden fluid into the formation in this embodiment the fracturing elements 12 have an open central bore for the passage of proppant laden fracturing fluid the sand control elements 14 can have any type of built in sand control medium therein here again whether or not the shifting sleeve 16 covers the sand control elements 14 when it uncovers the fracturing elements 12 is immaterial to the efficacy of the tool 10 a fourth type of shifting sleeve 16 is shown in fig1 and 17 this shifting sleeve 16 is a rotationally shifting solid walled sleeve having a plurality of.