Systems for generating a signal, for sending simultaneous bidirectional signals and decoding a pressure pulse signal, and methods for communicating with a subsurface assembly, for obtaining simultaneous bidirectional communication, for drilling a borehole, for transmitting a computer command, to send downlink instruction signals without interrupting drilling, to increase or decrease the downlink signaling data speed, to obtain an effectively high downlink signaling data speed and to obtain downlink and uplink signaling data with high data speed

摘要

"SYSTEMS FOR GENERATING A SIGNAL, FOR SENDING SIMULTANEOUS BIDIRECTIONAL SIGNALS AND DECODING A PRESSURE PULSE SIGNAL, AND METHODS FOR COMMUNICATION WITH A SUBSUPERFICIAL ASSEMBLY, FOR BIDIRECTIONAL COMMUNICATION FOR A SIMULTANEOUS PERULTURAL CULTURE , FOR SENDING DOWN SIGNAL INSTRUCTION SIGNALS WITHOUT STOPPING THE DRILLING, TO INCREASE OR DECREASING DOWN-SIGNALING DATA SPEED, TO OBTAIN EFFECTIVELY SIGNALING SINGLE SENDING SINGLE-SPEED SIGNALING DATA HIGH-SPEED DATA UP ". The invention describes downlink telemetry systems providing improved apparatus and methods for communicating instructions via surface equipment pressure pulses for a borehole mounting. The system comprises a surface transmitter (6) for generating pressure pulses, a control system (90), and a borehole receiver (21) for receiving and decoding pulses. In operation, a bypass valve (7) is opened and closed to create a series of pressure pulses received and decoded by a receiver in the borehole (21). The method significantly reduces the time required for downlink communication without interrupting drilling and without interrupting uplink communications, so that simultaneous, bidirectional communications are possible if downlink and uplink signals are sent at different frequencies. The telemetry and algorithm scheme provides an inventive method for filtering and decoding downlink signals. The algorithm determines the time intervals between pulse peaks and decodes the intervals into an instruction. The algorithm also includes error checking to verify that the instruction was received at the drillhole properly.