been completed the above procedure is reversed and the well returned to operation if it is desired to employ an electrically operable submerged pump not shown in the well the diversionary block 31 and tubing hanger 21 along with tubing string 26 are removed in the manner noted above the sealing plugs 63 66 and 68 are removed and replaced by interconnected electrical conductor connecting devices or cartridges 175 176 and 177 fig3 which are sealingly fitted and secured in the bores 61 and 62 by the screws 64 67 and 70 respectively such cartridges can be similar to those disclosed in my aforementioned patent u s pat no 4 804 045 an electric power supply cable 80 is connected to cartridge 175 and a second power supply cable 81 extends downwardly from the cartridge 177 to the submerged electric pump that can be supported in the well by the tubing string 26 now replaced in the well when this conversion is completed and the well is operating oil and or gas flow will be conducted upwardly through the tubing string 26 and through diversionary block passages 36 and 42 and thence outwardly through control valve 44 if it is desired to change the wellhead assembly to employ a reciprocating rod pump the parts are disassembled in the manner noted above the sealing plugs 63 66 and 68 are replaced and secured in the bores 61 and 62 the cap 52 fig1 and 3 is replaced by a tubular packing or gland member 79 fig4 having a depending annular skirt 82 and annular.