IPC Classes  ?

• E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
• E21B 47/16 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the drill string or casing

Abstract

A wireless system for monitoring downhole parameters in a well, in which the walls are cased with metal tube string, comprises a downhole transceiver arrangement lowered into the well and a transceiver mounted on the wellhead. One input or output of the wellhead transceiver is connected to the metal structure of the wellhead, and the second input or output is connected to the grounding device. A downhole transceiver arrangement comprises a contact element for electrical contact with a casing string, downhole instrument module, downhole pumping equipment or tubing electrically isolated from the string of casing metal tubes using at least one centralizer. The downhole instrument module comprises a dielectric insert, measuring sensors, control devices, receiving and transmitting device, and is designed to receive or transmit a signal from or to a transceiver located on the wellhead. This ensures that the operating modes of wells are monitored and optimized.

IPC Classes  ?

• E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
• E21B 33/12 - PackersPlugs

Abstract

The group of inventions is intended for monitoring parameters using a system that provides a cableless downhole communication channel. A cableless system for monitoring downhole parameters includes a transceiver mounted on a wellhead, and a downhole assembly of the transceiver. The technical result consists in enabling the monitoring of wellbore parameters using a cableless system for monitoring downhole parameters.

IPC Classes  ?

• E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
• E21B 47/16 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the drill string or casing

Abstract

The group of inventions is directed toward the transmission of information over a single-wire transmission line and includes a system and a method for receiving and transmitting information using a single-wire transmission line. The system contains at least two transceivers connected by a transmission line. Each transceiver comprises the following units: an information processing unit capable of processing a signal and transmitting same to a signal transmitting unit and also capable of receiving a signal for processing from a signal receiving unit; a signal transmitting unit including a generator (2), wherein one output of the generator (2) is connected to an isolated reference capacitor (C1) comprised of an electrically conductive body, and a second output is connected to a transmission line (C2) comprised of a second isolated capacitor; a signal receiving unit including a reference potential generating device (4) and an amplifier (5) capable of filtering a signal, as well as a power supply system.

IPC Classes  ?

• G08C 19/32 - Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels of one conductor or channel