Malaysia is the second largest oil and gas producer in Southeast Asia, with proven oil reserves of 3.7 billion barrels and proven natural gas reserves of 38.5 Tcf as of 2013. Its western coast runs alongside the Strait of Malacca, a significant energy corridor linking the Indian and Pacific Oceans, while the eastern part of the nation contains the states of Sabah and Sarawak. Nearly all Malaysiaâ€™s oil is produced from offshore fields. These are located on a continental shelf comprising the Malay basin in the west and the Sarawak and Sabah basins in the east. Major companies active in Malaysiaâ€™s oil and gas industry are national oil company Petronas, ExxonMobil and Shell.
Coiled tubing is a continuous length of flexible pipe wound on a spool that is straightened prior to pushing into a wellbore. There are a number of well intervention operations that can be achieved via coiled tubing, and it is sometimes used as production tubing in depleted gas wells. It is often more cost and time-effective than having to remove tubing from the well, as coiled tubing can be inserted into the tubing against the pressure of the well. Another advantage versus wirelining, is the ability to pump chemicals through the coil.