High Integrity Pressure Protection Systems

High Integrity Pressure Protection Systems



      HIPPS are considered an important layer of protection requiring the highest levels of Safety Integrity. HIPPS applications provide protection against over-pressure scenarios and are an ideal solution for asset protection where traditional pressure relief systems, such as relief valves and bursting discs, are impractical and environmental constraints are prohibitive. HIPPS are primarily used when fault conditions or events are identified that could lead to the installation exceeding the original design parameters. The drivers for HIPPS applications can be safety, environmental or economic where they can be an enabling technology that contributes towards bringing viability to a marginal development. HIPPS for surface, subsea and pipeline protection in both onshore and offshore applications.

Technically HIPPS defined to
 • Functional Safety Lifecycle Support
 • HIPPS Dossier development
 • Diverse Logic Solvers Technologies - Solid      State or PES
 • Axial, ball and gate valves with pneumatic and hydraulic actuation
 • Valve control panel with accumulator and HPU as options
 • Pressure transmitters with interlocking manifolds or DB&B Complete

 Benefits of HIPPS

• All modules certified, up to SIL4 according to IEC 61508
• There is scalable redundancy to increase process availability
 • Integrated diagnostics offering fast and explicit location of faults and simple replacement of faulty modules without interrupting system operation
 • Remote Diagnostics via communication module
 • Diverse technology from other protection layers
 • Availability of >99.99%. Next-->

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Pertamina to Take Over Rokan Block Operation

Pertamina to Take Over Rokan Block Operation

The Energy and Mineral Resources (ESDM) Ministry has decided to hand over the operation of the Rokan Oil and Gas Block to state-owned oil and gas company PT Pertamina, Deputy Minister of ESDM Arcandra Tahar said. The decision was taken merely on business and economic interest after evaluating Pertamina`s proposal, Arcandra said here on Tuesday. Pertamina will operate the Rokan Block in Riau, after its contract held by PT Chevron Pacific Indonesia expires in 2021. Pertamina has proposed a signature bonus of US$784 million or around Rp11.3 trillion for the government and a commitment value of US$500 million. The value of the proposal also indicates the financial health of Pertamina. The selection of Pertamina as the new operator would result in an increase in the firm`s contribution to the country`s oil and gas production. Its contribution to the country`s oil and gas production will increase from around 23 percent to 36 percent in 2018 and to 39 percent in 2019 when Pertamina takes over the operation of oil and gas blocks, the contracts of which are still held by foreign contractors.

Arcandra Tahar said the added value from the decision puts Pertamina in the ranks of world top oil companies that could control 60 percent of national oil and gas production in 2021. The Rokan Block has a strategic value. The block accounts for 26 percent of the country`s total oil and gas production. The block with a concession of 6,220 kilometers has 96 fields, three of which produce high quality oil Duri, Minas and Bekasap. From the start of operation in 1971 until 31 December 2017, the Rokan Block produced 11.5 billion barrels of oil. Through the decision, the government gives financial support for Pertamina, which is in charge of public service of guaranteeing energy supply in the country such as oil fuel (BBM) in the same price all over the archipelago. Next -->

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Indonesian Minister of Energy and Mineral Resources Ignasius Jonan inaugurated the 10.101 Household Connection (SR)

Minister Jonan Inaugurates 10.101 Jargas Houses

Minister of Energy and Mineral Resources Ignasius Jonan inaugurated the 10.101 Household Connection (SR) of the Natural Gas Distribution Network (Jargas) of the Mojokerto City and Mojokerto District from funding of the State Budget (APBN) Year 2017. Construction of jargas infrastructure in Mojokerto City is assigned to Perusahaan Gas Negara / PGN (Persero) while, PT Pertamina (Persero) gets mandate to build jargas in Mojokerto regency. "Jargas in Mojokerto and Mojokerto Mojokerto is built because it is adjacent to two significant gas wells operated by CNOOC Madura Limited and Kangean Energy Indonesia, totaling Rp 86 billion for jargas in the city and regency (Mojokerto)" said Jonan in the inauguration centered in the Office District Prajurit Kulon, Mojokerto City, Friday (9/2/2018).

Also present were PGN President Director Triananda Hasjim, Pertamina Gas Director Yenni Andayani, Mojokerto Mayor Masud Yunus and Deputy Regent of Mojokerto Regency Pungkasiadi. Jonan said the development of this jargas is a program implemented according to the direction of President Joko Widodo for equity, prioritizing the existing resources for the prosperity of the people according to the spirit of energy security. "The government seeks to ensure that all natural resources owned by this nation and state can be used as much as possible for the people's prosperity, one of the programs is jargas in the region or in the settlements or in areas where gas or gas source is available," said Jonan. Minister of Energy and Mineral Resources convey, with jargas it will reduce dependence on Liquefied Petroleum Gas (LPG) which some still imported. "A year of our needs is 6.5 million tons, 4.5 million of which is still imported, although our natural gas production is 1.2 million barrel oil equivalent per day, the type produced is not C3 and C4 that can be made LPG," he explained Next-->

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11:40:00 PM | 0 comments

Pressure and Temperature Ratings

Pressure and Temperature Ratings

The classes 150#, 300#, ... etc. are just considered as a categorization or family name for each group of flanges.

The calling up is first created by ANSI under ANSI B16.5 and ANSI B16.47, and starting from 1998 the publications issued under ASME B16.5 (for flanges NPS 1/2" up to NPS 24") and ASME B16.47 (for flanges NPS 26" and larger) for determining what we called Pressure-Temperature Ratings.

Note. 150# ≡ Class 150 ≡ Rating 150, all three names are correct, but don't mean that the flange will withstand a pressure of 150 lb/in2 (pound per inch square).

The tabulated pressure in which the flange will resist is located from ASME B16.5 and ASME B16.47 which depends on type of flange Material and Design Temperature. To calculate the max. design pressure of any flange with a such rating, 1st you have to select the flange material and 2nd you have to select the design temperature. 

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RANTAI PEMANFAATAN GAS BUMI DI INDONESIA

RANTAI PEMANFAATAN GAS BUMI DI INDONESIA 

Apabila digambarkan, saya coba gambarkan rantai bisnis pemanfaatan gas bumi nasional sebagai berikut: Rantai Pemanfaatan gas Bumi melalui Pipa Keterangan gambar: Kegiatan diklasifikasikan dalam 3 (tiga) zona, yaitu kegiatan hulu (upstream), midstream dan hilir (downstream). 

Gambar di atas menunjukkan proses pemanfaatan gas pipa,

Produsen Gas, adalah pelaku bisnis dalam hal produksi dan penyediaan gas bumi, umumnya adalah Production Sharing Contract (“PSC”) atau dalam bahasa Indonesia Kontraktor Kontrak Kerjasama (“KKKS”) seperti PT Pertamina EP, ConocoPhillips, Total Indonesie, Chevron dan lain-lain. KKKS ini memproduksi gas berdasarkan Plan of Development (“POD”) yang telah disetujui SKK MIGAS (dulu BPMIGAS, Badan Pelaksana Kegiatan Usaha Hulu Minyak dan Gas Bumi). Produsen Gas menjual gas ke konsumen besar yang mendapat prioritas (Pupuk, Listrik, City Gas, Industri Strategis) atau konsumen lain (Badan Usaha Pemegang Izin Usaha Niaga Gas Bumi/Trader) dengan penjualan gas di wellhead (titik penyerahan setelah sumur). 

Konsumen Eligible, adalah konsumen gas yang mendapatkan prioritas alokasi gas dan dapat membeli langsung gas dari produsen. Prioritas tersebut meliputi pupuk, listrik, jaringan gas rumah tangga dan industri strategis (Contoh: Pupuk Kaltim, Pusri, Kujang, PLN, Krakatau Steel). 

Konsumen Badan Usaha, adalah Badan Usaha yang memiliki Izin Usaha Niaga Gas Berfasilitas yang dapat membeli gas dari produsen dan dijual ke end user. Badan Usaha ini yang sering disebut sebaga gas trader, sesuai dengan Izin Usaha-nya, Badan Usaha ini seharusnya memiliki fasilitas/infrastruktur untuk mengangkut gas ke end user. Misalnya, Badan Usaha ini menggunakan fasilitas pipa transmisi dan membangun pipa dari tap-out pipa transmisi ke fasilitas end user.  

Transporter, adalah Badan Usaha yang memiliki pipa transmisi yang dapat digunakan bersama (open access) yang melakukan pengangkutan gas milik Shipper (Shipper ini bisa Produsen atau Konsumen) dari Titik Terima ke Titik Serah (Contoh Transporter: Pertagas dan PGN (sebagian)). 

Distributor, adalah Badan Usaha yang memiliki jaringan pipa distribusi yang dapat digunakan bersama (open access) untuk mengangkut gas milik Shipper dari pipa transmisi ke konsumen. Namun kenyataannya pipa distribusi in tidak dapat digunakan bersama dan dijadikan pipa berstatus dedicated, artinya pipa ini digunakan hanya untuk mengangkut gas milik pemilik pipa ke konsumennya. 



End User, adalah konsumen gas yang membeli gas dari produsen gas atau badan usaha niaga gas untuk keperluannya sendiri yang diangkut melalui pipa transmisi dan distribusi. Kenyataannya end user saat ini membeli gas dari pemilik jaringan distribusi (dedicated) atau dari multi trader. Gambar di atas menunjukkan proses pemanfaatan gas pipa, contoh pemanfaatan lainnya adalah pemanfaatan gas bumi untuk dimanfaatkan di Kilang LPG, CNG maupun LNG Plant.
contoh pemanfaatan lainnya adalah pemanfaatan gas bumi untuk dimanfaatkan di Kilang LPG, CNG maupun LNG Plant. selanjutnya Pemanfaatan Gas Bumi Untuk sumber gas yang berada jauh dari lokasi permintaan gas bumi, apabila dinilai ekonomis maka gas dapat diubah menjadi LNG, ditransportasikan melalui kapal LNG, kemudian di tempat tujuan LNG diubah kembali menjadi gas melalui fasilitas storage dan regasification untuk kemudian diangkut ke pengguna melalui moda transportasi pipa. Moda transportasi selain pipa adalah CNG trucking, di mana gas bumi dikompresi dengan tekanan tertentu kemudian diangkut melalui trucking atau kereta ke tempat konsumen. Next-->

Source : http://www.kompasiana.com/eka_y/bisnis-gas-bumi-di-indonesia_568e49282023bd2309374976

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11:35:00 AM | 0 comments