History Feedback The address About company LLC NNPK "EKHO" specializes in scientific developments in the field of drilling oil and gas wells, in particular, downhole telemetry systems using a wireless communication channel. As one of the leading developers and manufacturers of telemetry systems in the Ural region, LLC NNPK EKHO manufactures and supplies telemetry equipment of the AT-3 family, and also renders services to drilling enterprises using AT-3 equipment when drilling wells. During its work, the company has developed and produced a number of standard sizes of downhole tools: AT-3-195, AT-3-172, AT-3-108 and their modifications. LLC NPK EKHO cooperates with the following companies: OJSC LUKOIL-Burenie, OJSC Sibneft-Noyabrskneftegaz, OJSC Rosneft, OJSC ANK Bashneft, OJSC Tatneft, TNK. Telemetry equipment AT-3 operates in Western Siberia, Tatarstan, Bashkiria, Orenburg region, Komi-Permyak district, Sakhalin. Over the past 10 years, 50 sets of equipment have been manufactured; more than 500 wells were drilled in various regions of the country. The greatest length of the horizontal section drilled with the participation of OOO NNPK EKHO was 600 m, the project vertical corridors - up to 2 m, vertical depth - up to 3800 m. AT-3 can be used to drill all types of directional wells: vertical sections, flat, rising, etc. 5 years ago, a new hardware design was developed, which made it possible to abandon the modular principle of construction and long communication lines generally accepted for LWD / MWD systems, and at the same time provide the possibility of expanding the measuring complex, which significantly increased the reliability of the system and simplified the process of maintenance, repair and exploitation. The time for preparing the equipment for operation is 30 - 40 minutes, the turnaround period is on average 300 - 400 hours, the total service life of the downhole equipment is 2400 hours. A kind of record for the trouble-free operation of sensors was set in the conditions of Western Siberia: two sets worked for more than 3000 hours without repair and maintenance work. The increase in the power of the turbine generator and the development of a new information processing program made it possible to transmit data from great depths at a frequency of at least 10 Hz without losing the quality of the transmitted information. Constructive changes to the turbine generator increased the duration of continuous operation up to 400 hours and simplified maintenance work associated with adding oil and replacing mechanical seals and bearings. Telemetry equipment AT-3 is specially designed for severe conditions of increased mechanical loads and successfully works when drilling under a surface guide, has shown good results in rotary drilling conditions. The new concept of construction of AT-3 of all standard sizes allows you to easily introduce sensors for measuring technological and geophysical parameters during drilling, without changing the design of the downhole tool and without increasing its size. At present, downhole tests are being carried out on the sensors of bit speed, torque and load on the bit, torsional vibrations of the string, and electrical logging. © 2003 LLC NNPK "ECHO" Site development and support: BMS Design