Amine intercalating agent for drilling passed the review

　　On July 6, the "Development and Application of Amine Intercalating Agents for Drilling" undertaken by Nanjing Chemical Industry Research Institute Co.
, Ltd.
passed the scientific research results evaluation organized by the Science and Technology Department of Sinopec Group
.

　　Through molecular structure design, this project developed an amine intercalating agent suitable for inhibiting wellbore instability, and determined the optimal process synthesis parameters
.
The small test evaluation results show that when the amount of amine intercalating agent is 1%, the relative inhibition rate is as high as 96.
88%, the rolling recovery rate of cuttings is 27.
3 times higher than that of clean water, the temperature resistance reaches 220 °C, and the comprehensive performance is excellent
.
In addition, the project has completed the production of tons of amine intercalating agents, and applied them at the drilling site with good results
.

　　Borehole instability has always been a technical problem in drilling engineering, especially in drilling operations in formations with high mud shale content and water-sensitive formations
.
During field construction, shale inhibitors are usually added to the drilling fluid to inhibit the hydration of shale
.
However, several commonly used shale inhibitors for drilling fluids are difficult to control the rheology of drilling fluids, greatly increase water loss, weak inhibition ability, and easy to pollute the environment
.