KEYWORDS: Digital signal processing, Turbines, Signal detection, Pulse signals, Design and modelling, Control systems, Analog to digital converters, Tunable filters, Data transmission, Light emitting diodes
Rotary-guided drilling technology is a cutting-edge automated and efficient drilling technology developed in the late twentieth century to meet the urgent needs of oil and gas resources exploration and development. In this paper, an in-depth study is made on the down-transmission communication technology in rotary-guided drilling, and an oil and gas well surface-down-hole fluid pulse communication device is designed. In this system, cable-free transmission is used to break the existing domestic and foreign rotary-guided drilling information transmission technology, and the drilling fluid, which is indispensable in drilling, is used as the transmission medium without changing the existing drilling process or breaking the rotary-guided drilling technology. Secondly, a unique coding method is used to code the commonly used guiding force and tool face angle according to the actual operation in the drilling process to form 36 guiding points, which greatly reduces the cost. This design completes the downhole decoder design and the experimental results meet the expectations. The design of the work is of great significance for the realization of an automatic closed-loop guided drilling control system.
KEYWORDS: Telecommunications, Intelligence systems, Control systems, Power supplies, Communication and information technologies, Data transmission, Design and modelling, Data communications, Analog electronics, Transformers
In an intelligent completion system, the surface control part not only needs to provide power to the downhole equipment, but also needs to communicate with the downhole equipment. In this paper, a power line carrier communication system based on intelligent well completion is designed. In this system, the surface controller uses a single-core cable to transmit surface commands to the downhole by coupling them to the single-core cable, and the downhole equipment then couples ground commands from the single-core cable, which realizes communication with the downhole equipment and provides power to the downhole equipment to meet the power supply and communication requirements of the complex downhole situation.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.