Development of Organic Soil Suitable for Biodiesel-Based Drilling Fluids

The oil-based drilling fluid system has the advantages of excellent lubricating performance, strong inhibitive ability, good sidewall stability and good temperature resistance, etc., however, which also has disadvantages of polluting the environment, easy to catch fire, and higher preparation cost, etc. In the development of biodiesel drilling fluid system, we no longer use diesel or crude oil, instead, it is replaced by biodiesel. Biodiesel also has better environmental friendliness, stronger biodegradability, higher safety performance and renewable advantage (Xin, 2005) while meeting specific requirements and achieving relevant performance. Biodiesel drilling fluid is more suitable for actual drilling operations for the more fragile ecology and higher demand environment. However, the organic soil on the market is basically developed for the white oil system. Therefore, we developed organic soil suitable for biodiesel systems by combining the actual situation of organic soil in the market through the measures of comparison, optimization, modification, etc.