Effect of Temperature Conditions in Arctic Offshore Oil Fields on the Rheological Properties of Various Based Drilling Muds

During well drilling in offshore conditions beyond the North of Arctic Circle, there are often problems associated with deviations rheological parameters mud as temperature changes. Mud upper part most cases is range up to 20 °C, whereas productive formation it 80 °C and more. For such conditions, necessary estimate influence on fluids, which done this paper. Compositions water-based hydrocarbon-based muds that may be used hydrocarbon fields were considered. The paper presents authors’ formula for a possesses more stable oil field environmentally friendly. physical properties newly designed measured laboratory equipment. Rheological investigations carried out under varying temperatures °C. results experiments show than its analogue. Besides, developed composition has lower content solid phase, also an important parameter process sea wells construction, characterized by narrow window permissible pressure.