with one end closed and one end open and is available from weatherford international of houston tex among others first tubing string 1 continues below packer 14 and contains one way valve 28 and continues until it terminates in curve 8 or lateral 10 or for fig1 in or below reservoir 9 within first tubing string 1 is second tubing string 21 which is also sealingly engaged to bushing 25 and continues down through packer 14 and may terminate prior to the end of first tubing string 1 third tubing string 3 is within first tubing string and begins at surface 12 and terminates in on off tool 26 on off tool 26 allows third tubing string 3 to be selectively engaged to first tubing string 1 on off tool 26 is sealingly engaged to bi flow connector 43 contained inside first tubing string 3 are sucker rods 11 pump 5 and seating nipple 48 sucker rods 11 are connected to pump 5 which is selectively engaged into seating nipple 48 seating nipple 48 is available from weatherford international of houston tex among others as shown in fig1 a 13d bi flow connector 43 is a cylindrically shaped body with a central bore 112 extending from a first end 105 to a second end 107 and having a thickness 109 vertical or first channels 102 pass through the thickness 109 of the bi flow connector 43 from the first end 105 to the second end 107 horizontal or second channels 100 pass from the side surface 111 through the thickness 109 of the bi flow connector 43 to.