Method and apparatus for protection of control lines and other equipment
A protective member at least partially surrounds a desired length of pipe (such as a conventional landing string) and protects “umbilical” control line(s) or bundles, including pipe and umbilical line(s) installed within risers of subsea installations. At least one robust protective shell member is installed around at least a portion of a pipe string and forms at least one elongated channel. At least one umbilical control line is disposed within the elongated channel and is shielded against damage from inadvertent or unwanted abrasion, impact or other forces.
1. An encasement apparatus for shielding at least one umbilical line disposed along an external surface of a pipe section having at least one tube body and at least one tool joint, wherein said protective apparatus comprises:
a) a first encasement member disposed against said pipe section over at least one tube body and at least one tool joint, and having a first elongated and recessed channel extending along the entire length of said first encasement member, wherein said first elongated channel defines a radially-outwardly facing opening along the entire length of said first elongated channel;
b) a second encasement member disposed against said pipe section over at least one tube body and at least one tool joint, and removably attached to said first encasement member, wherein said second encasement member has a second elongated channel extending along the entire length of said second encasement member defining a radially-outwardly facing opening along the entire length of said second elongated channel, and wherein said radially-outwardly facing opening of said second elongated channel is phased about 180 degrees around the circumference of said pipe section from said radially-outwardly facing opening of said first elongated channel;
wherein said at least one umbilical line is disposed in said first or second elongated channels.
2. The protective apparatus of claim 1 , wherein said first encasement member defines a first outer surface, said second encasement member defines a second outer surface, and said at least one umbilical line does not extend radially outward beyond said first and second outer surfaces.
3. The protective apparatus of claim 2 , wherein said first and second encasement members protect said at least one umbilical line while said pipe section is installed within a riser of a floating drilling rig or other floating vessel.
4. The protective apparatus of claim 1 , wherein said first and second encasement members protect said umbilical line against damage caused by contact with other objects.
5. The protective apparatus of claim 1 , wherein said first and second encasement members are attached to each other using at least one mechanical fastener.
6. A method for protecting an umbilical line disposed along an external surface of a pipe section having at least one tube body and at least one tool joint, comprising:
a) attaching an encasement apparatus to said pipe section, wherein said encasement apparatus comprises:
(i) a first encasement member disposed against said pipe section over at least one tube body and at least one tool joint, and having a first elongated and recessed channel extending along the entire length of said first encasement member, wherein said first elongated channel defines a radially-outwardly facing opening along the entire length of said first elongated channel;
(ii) a second encasement member disposed against said pipe section over at least one tube body and at least one tool joint, and removably attached to said first encasement member, wherein said second encasement member has a second elongated channel extending along the entire length of said second encasement member defining a radially-outwardly facing opening along the entire length of said second elongated channel, and wherein said radially-outwardly facing opening of said second elongated channel is phased about 180 degrees around the circumference of said pipe section from said radially-outwardly facing opening of said first elongated channel, and;
b) installing at least one umbilical line in said first elongated channel through said radially-outward facing opening of said first channel; and
c) lowering said at least one umbilical line, pipe section and encasement apparatus into a rotary table of a drilling rig.
7. The method of claim 6 , wherein said first encasement member defines a first outer surface, said second encasement member defines a second outer surface, and said at least one umbilical line does not extend radially outward beyond said first and second outer surfaces when installed in said first elongated channel.
8. The method of claim 6 , wherein said encasement apparatus protects said at least one umbilical line against damage caused by contact with other objects.
9. The method of claim 6 , wherein said first and second encasement members are attached to each other using at least one mechanical fastener.
10. The method of claim 6 , wherein said at least one encasement apparatus protects said at least one umbilical line while said pipe section is installed within a riser of a floating drilling rig or other vessel.