| 摘要 |
FIELD: sealing materials. ^ SUBSTANCE: invention relates to preparing a sealant for threading joints of pipes for petroleum assortment, in particular, casing pipes working under conditions of increased temperatures and binding loading typical for obliquely-directed and horizontal wells. The sealant comprises the following ratio of components, wt.-%: epoxide compound with hardening agent, 60-66; fluoroplastic powder, 30-34, and swollen vermiculite sand of fraction 0.3-1.0 mm, the balance. Invention provides enhancing the sealing capacity in the range of temperatures 30-90°C under conditions of bending loading. ^ EFFECT: improved and valuable technical properties of sealant. ^ 20 ex |
