초록 ▼

A concentric wet connector system useful for connecting, disconnecting and reconnecting small diameter fluid lines (40, 42, 44) and electrical lines (46) downhole in oil and gas wells, the system comprising first and second slidably engageable well tubulars (32, 38) coaxially disposed around a longi

A concentric wet connector system useful for connecting, disconnecting and reconnecting small diameter fluid lines (40, 42, 44) and electrical lines (46) downhole in oil and gas wells, the system comprising first and second slidably engageable well tubulars (32, 38) coaxially disposed around a longitudinal bore, each well tubular having a circumferentially extending wall section containing at least one auxiliary conduit leading to a connector port 64 paired and communicating with a connector port 66 of the other tubular. The connector ports in each well tubular are preferably spaced apart both circumferentially and longitudinally. The connector ports of each respective pair are preferably disposed at substantially the same well depth whenever the two well tubulars are fully engaged, and communication between the connector ports of each pair is preferably established by means of an annular flow channel 74 (for fluid lines) or an annular recess with an electrically conductive band 104 (for electrical control wires) to avoid the need for specific rotational alignment between the well tubulars. Use of the system for connecting fluid lines and/or electrical control wires to well tools and monitoring equipment suspended below a production packer and annular safety valve in a well bore is also disclosed. The tubulars are also locatable by shear collar (150) in a position short of full engagement (FIG. 8) in which ports (64, 140) on the inner tubular (32) are both open to annular channel (74) to permit flushing of these ports.

대표청구항 ▼

A connector system for auxiliary conduits attached to well tubulars disposed downhole in oil and gas wells, said system comprising: first and second slidably engageable well tubulars defining a coaxially longitudinal bore, each well tubular having a circumferentially extending wall section, each wel

A connector system for auxiliary conduits attached to well tubulars disposed downhole in oil and gas wells, said system comprising: first and second slidably engageable well tubulars defining a coaxially longitudinal bore, each well tubular having a circumferentially extending wall section, each well tubular containing at least a first and second connector port, spaced longitudinally apart, said ports being positioned in said first and second well tubulars so that when said well tubulars are engaged to a predetermined extent, said first port of said first well tubular is operably connected to said first port of said second well tubular, and said second port of said first well tubular is operably connected to said second port of said second well tubular; said first port of said first well tubular and said first port of said second well tubular constituting a first pair of connector ports, and said second port of said first well tubular and said second port of said second well tubular constituting a second pair of connector ports, said first pair of connector ports and said second pair of connector ports being spaced longitudinally apart; means of operably connecting said first connector port of said first well tubular and said first connector port of said second well tubular whenever said first and said second well tubulars are slidably engaged to a predetermined extent, said means for operably connecting said first pair of connector ports, functioning without regard to the rotational alignment between said first and second slidably engageable well tubulars; means of operably connecting said second connector port of said first well tubular and said second connector port of said second well tubular whenever said first and said second well tubulars are slidably engaged to a predetermined extent, said means of operably connecting said second pair of connector ports functioning without regard to the rotational alignment between said first and second slidably engageable well tubulars; a channel formed by the walls of said first and second well tubular, said channel extending between said first and said second connector ports of said first well tubular, said channel allowing fluid communication between said first and second connector ports of said first well tubular, said channel being open only when said first and second slidably engageable well tubulars are not fully engaged, said channel thereby permitting flushing of contaminants from said connector ports prior to said well tubulars being fully engaged by transmission of a flushing fluid through said first connector port of said first well tubular, through said channel, and then through said second connector port of said first well tubular, and further wherein when said tubular members are completely engaged, said channel no longer allows fluid communication between said first connector port of said first well tubular and said second connector port of said first well tubular.