Look Inside Positive Displacement Motor: A comprehensive and valuable book written by a team of outstanding experts in this tool and published through SigmaQuadrant publishing. The Positive Displacement Motors covers the full spectrum of topics in terms of analysis and design of the downhole mud motor that serves the workhorse of the downhole drilling system for several decades. This book presents functional, operational and technical aspects of positive displacement motor. It provides a platform ideal to seasoned engineer, experienced researcher and other professionals involved in the drilling operations as it offers real insight into this simple but complex machine. It highlights the background and development of this tool
- Provides details of the design
- Offers operational guidelines of this tool
- Emphasizes technology selection and innovation in the offing
- Incorporates practical operating envelop
In 1990s, the trend of introducing new technologies for drilling high angle and horizontal wells and sidetracks continued. The introduction of these technologies, where PDM is one of the main elements of multifunctional complex technical, gained progress in oil and gas industry. In the last 10 years, new generation motors with improved technical and operational characteristics were introduced. Dr. Rene Moineau, a French engineer first invented and obtained several modified patents for a rotary type pump between 1930 and 1948.
The pumps he developed were extensively used in the world war planes as superchargers. In fact, Archimedes invented a pump that consisted of a spiral shaft which when turned by hand lifted water from lake. Moineau basically developed further Archimedean screw pump idea. The first commercial PDM was introduced to the petroleum industry in the late 1950s. Their use increased in the late 1960s for the directional drilling application. However, their use has accelerated greatly with the present coiled tubing drilling.
Early start of the introduction of this tool revealed significant performance advantages over turbodrills due to the ability to control the engine speed at the bottom and the ease of repair.