the cavity floor 33 pump inlets 24 are at a known position within the cavity 32 by adjusting the spacing between the pump inlets 24 and the blunt arms 14 of the tool 10 the distance between the pump inlets 24 and the cavity floor 33 can be modified this adjustment may be made in a variety of ways including adding spacers to the head piece 12 additionally by changing the maximum angle of the blunt arms 14 the distance between the pump inlets 24 and the cavity floor 33 can be modified adjusting the maximum angle of the blunt arms 14 can be accomplished in a variety of ways including adjusting the stops 18 to restrict the radial extension of the blunt arms 14 therefore the present invention provides for more definite location of the pump inlets 24 within cavity 32 by use of positioning tool 10 once the pump 22 is positioned within cavity 32 by tool 10 fluids that drain from the drainage pattern 45 into the cavity 32 are pumped to the surface with the pump string 20 fluids may be continuously or intermittently pumped as needed to remove the fluids from the cavity 32 additionally gas is diffused from the coal seam 40 and is continuously connected at the surface 35 as it passes through well bore 30 when fluid and gas removal operations are complete the tool 10 may be removed from its position within cavity 32 in reverse operation pump string 20 is raised until blunt arms 14 are no longer in contact with the floor 33 of cavity 32 blunt arms.