US EPA

9418921 

Journal Article 

STUDY ON RECENT ADVANCES OF WASTE DRILLING FLUID TREATMENT 

Zhang, X 

2018 

1 

Fresenius Environmental Bulletin
ISSN: 1018-4619
EISSN: 1610-2304 

27 

6 

4460-4468 

WOS:000437783100076 

Production from unconventional hydrocarbon resources, such as shale gas, shale oil, deepwater and arctic reservoirs requires advanced drilling and extraction technologies. Furthermore, drilling fluid is known as the blood of the oil industry, with carrying debris, cooling, lubricating the drill bit, control and balance formation pressure and so on. As the difficulty of petroleum exploration increases, a variety of high-performance drilling fluids are used in drilling operations, which means more and more types of chemicals are added to the drilling fluid, most of which are potentially environmentally friendly harm. Therefore, the proper disposal and reuse of waste drilling fluid has become an urgent problem to be solved. The mechanism and progress of adsorption treatment, electrochemical treatment, solid-liquid separation treatment, solidification treatment, AOPs, and microbial treatment are comprehensively reviewed through the investigation on the drilling waste treatment technology at home and abroad. The development trend of drilling waste treatment technology is forecasted and prospected. 

Drilling waste; adsorption; electrochemistry; solid-liquid separation; solidification; AOPs; microbe