CONNECTION WITH MULTIPLICITY OF SEALS FOR VERTICAL PIPES OF IMMERSED WATER-SEPARATING STRING Russian patent published in 1998 - IPC

FIELD: oil and gas production industry. SUBSTANCE: this relates to development of oil and gas deposits. Connection with multiplicity of seals for vertical pipes of immersed water-separating string is made in the form of threaded pipe joint intended for transportation under high pressure of corroding or fouling flowing media in pipeline or vertical string which is surrounded by mass of water and is subjected to high static or dynamic stresses and bending forces. Joint is provided with large-size thread with sharp edges and load-bearing edges adapted to endure high loads. Joint is provided with multiplicity of sealing means accommodated inside body of joint. Aforesaid sealing means are used to isolate joint thread from action of flowing media located externally from joint or inside bore of joint. Aforesaid embodiment of connection ensures higher tightness of pipe joints of underwater water-separating string. EFFECT: higher efficiency. 12 cl, 6 dwg