Gas Transmission Pipeline (GTM) |
| |
Committed as a part of the natural gas business units’ drive to become the leader of natural gas industry in Asia. With a leading vision of operational excellence under the Thailand Quality Awards’ criteria, the operation & maintenance efficiency development by TPM guidelines (JIPM) as well as the Risk Management in all operating processes. |
| |
| All process of GTM operating procedures focuses on key missions which are to meet customer satisfaction through control process and optimizing the resources, the contribution to community which has been taking care since PTT started, and developing human resources capability to meet the PTT values (SPIRIT). |
| |
| |
| Natural Gas Transmission Pipeline System |
| |
| Today, PTT’s transmission pipeline covers a distance 4,056 kilometres. |
| |
| Transmission Pipeline |
| |
The transmission pipeline covers a distance of 3,286 kilometres which include offshore and onshore pipelines. The offshore pipeline covers a distance of 2,013 kilometres, stretching from natural gas fields in the Gulf of Thailand to gas separation plants unit 1,2,3,5 and 6 in Rayong and from Erawan gas field and Bongkot gas field to Khanom District, Nakhonsri Thammarat.
The onshore pipeline covers a distance of 1,273 kilometres on the eastern and the western sides of the country. The eastern pipeline starts from Rayong gas separations plants to power plants in Rayong, Bang Pakong, South Bangkok, Wang Noi and Tha Luang in Ayudhya and Kaeng Khoi in Saraburi. The western pipeline starts from Thai-Myanmar border in Kanchanaburi to Ratchburi power plant. Both eastern and western pipelines are connected together with Rajburi-Wangnoi transmission pipeline, which enhances substitute utilization between natural gas from the Gulf of Thailand and from Myanmar. |
| |
| Distribution Pipeline |
| |
The distribution pipeline covers a distance of 770 kilometres. The distribution pipeline is a branch of transmission pipeline delivering natural gas to industrial users. PTT has prepared the pipeline master plan vol. 3 (2002-2010) for an increasing demand in the next 10-15 years, gas business’s free trade and the gas transmission network in Asian region. The approximate investment fund for the master plan is 93,060 millions baht.
PTT invests in joint-venture companies in gas transmission development business i.e. PTT Natural Gas Distribution Co., Ltd, Trans Thai-Malaysia Co., Ltd and Trans Thai-Malaysia (Malaysia) Sdn. Bhd.
PTT’s natural gas pipeline is operated under strict safety standard, focusing on security, property and environment of nearby residents. |
| |
Map of Natural Gas Transmission Pipeline System
(Click here to view image) |
| |
The natural gas transmission pipeline system is composed of three major sections.
|
| |
| Natural Gas Transmission Pipeline Operation |
| |
Controlling stations of gas transmission pipeline system are located in different areas. The head quarter is located in Chonburi, named Chonburi Operations Center.
- Offshore Pipeline Operations Department is responsible for offshore gas transmission, Erawan Riser Platform (ERP) and
PTT Riser Platform (PRP) covering the area of Pattanee, Songkhla, Nakhon Si Thammarat, Surajthani, Chumporn, Prachuabkirikhan and Rayong.
- Region I Gas Operations Division is responsible for gas transmission in Rayon, Chonburi, Chachoengsao, Samutprakarn and Bangkok
- Region II Gas Operations Division is responsible for gas transmission in Bangkok, Pathumthani, Pha Nakhon Sri Ayutthaya and Saraburi
- Region III Gas Operations Division is responsible for gas transmission in Rayong
- Region IV Gas Operations Division is responsible for gas transmission in Khon Khaen.
- Region V Gas Operations Division is responsible for Thai-Burma border gas transmission from Baan E-Tong, Thongphaphum District, Kanchanaburi to Ratchaburi power plant, Ratchaburi.
- Region VI Gas Operations Division is responsible for gas transmission in Bangkok, Nonthaburi, Samutprakarn, Pathumthani and Nakhonpathom.
- Region VII Gas Operations Division is responsible for gas transmission in Songkhla.
- Region VIII Gas Operations Division is responsible for gas transmission in Kanchanaburi.
|
| |
| Main Duties of Gas Operations Division |
| |
• Operation controlling and planning
• Gas transmission pipeline engineering support
• Gas transmission pipeline maintenance
• Gas transmission pipeline’s safety and environment control
• Block valve station control
• Preventing and handling gas transmission’s emergency by using supervisory control and data acquisition system (SCADA) via communication systems e.g. microwave, optic fibre cable and satellite communication |
| |
| Gas Transmission Control System |
| |
| The gas transmission system consists two major parts as follows |
| |
| Block Valve Station |
| |
| Each block valve station is installed with gas transmission controlling system. The system is directly operated by Chonburi Operations Center and other gas operations division via the SCADA system. Chonburi Operations Center is the main controlling centre and staffed 24 hours. |
| |
| Communication Systems |
| |
To ensure the efficient transmission, state-of-the-art technology is used as follows
- Microwave is the major communication system of Chonburi Operations Center, region II gas operations center and region III gas operations center.
- The optic fiber cable is laid along the pipeline. Currently, it is the major communication system in the western region. This system is to be expanded to cover the entire gas transmission system.
- The satellite telecommunication is to be used when the major communication system is out of function.
- UHF (Ultra High Frequency) and VHF (Very High Frequency) radio systems are used extensively to cover the distance of gas transmission pipeline.
PTT’s internal telephone system and TOT telephone system |
| |
| |
 |
| |
