SYSTEM FOR DOUBLE-SIDED TELEMETRY OF DRILL STRING FOR MEASUREMENT AND CONTROL OF DRILLING Russian patent published in 2011 - IPC E21B47/12 

FIELD: gas-and-oil producing industry.

SUBSTANCE: invention can be implemented at drilling boreholes in rock thickness where there is used drill unit and drill string. An upper end of the drill string is mechanically tied with the drill unit and is suspended on it. There is also an assembly of a bottom of the drill string adjacent to a lower end of the drill string; also this assembly consists of a bore bit at a lower end. Here is disclosed the procedure for obtaining information of at least one parametre recorded at the assembly of the bottom of the drill string. The procedure consists in following stages: the assembly of the bottom of the drill string is equipped with at least one measuring device, also, measured data correspond to a parametre measured at the assembly of the bottom of drill string; at the top of the well on surface there is arranged a processor system; there is arranged a telemetry system on the drill string connected to at least one said measuring device and to said processor system at the top of the well; data are transmitted from the said measuring device to the said processor system at the top of the well via the said system of telemetry along the drill string.

EFFECT: improved measurement and control during drilling.

51 cl, 12 dwg