This comprehensive text discusses a wide variety of production chemicals used by the oil and gas industry for down-hole and topside applications both onshore and offshore. the author reviews all past and present classes of production chemicals, providing numerous difficult-to-obtain references, especially spe papers and patents. unlike other texts that focus on how products perform in the field, this book focuses on the specific structures of chemicals that are known to deliver the required or desired performance, which is much more useful to research and development staff. where known, it also details the environmental aspects of the chemicals discussed.