Coiled tubing units and systems for subterranean wellbore operations

A coiled tubing system comprising:

• a first guide arch positioned adjacent to a first entry point of a first wellbore;
• a second guide arch positioned adjacent to a second entry point of a second wellbore;
• and
• a coiled tubing unit (CTU) positioned proximate to the first guide arch and the second guide arch, wherein the CTU comprises:
• a base;
• a first tubing reel positioned on a first portion of the base, wherein the first tubing reel comprises a first spool and a first coiled tubing, wherein the first tubing reel is aligned with the first guide arch, and wherein the first spool is configured to rotate about a first horizontal axis in order to move the first coiled tubing through the first guide arch within the first wellbore within a subterranean formation;
• and
• a second tubing reel positioned on a second portion of the base, wherein the second tubing reel comprises a second spool and a second coiled tubing, wherein the second tubing reel is rotatable about a vertical axis independent of the base and the first tubing reel in order to align the second tubing reel with the second guide arch, and wherein the second spool is configured to rotate about a second horizontal axis in order to move the second coiled tubing through the second guide arch within the second wellbore within the subterranean formation, and
• wherein the first tubing reel and the second tubing reel are configured to be operated simultaneously and independently of each other.