All posts tagged gas

Construction on Medgaz pipeline begins

CONSTRUCTION BEGAN ON THE FIRST stage of the Medgaz pipeline from Algeria to Spain on March 9, 2008. The Medgaz consortium includes Algeria’s state-owned Sonatrach with a 36% stake, Cepsa and Iberdrola SA with 20% each and Endesa SA and Gas de France with 12% each. Despite a number of disputes in the second half of 2007, Algeria and Spain eventually agreed on the amount of gas Sonatrach may sell through the Medgaz pipeline. Spain agreed to allow Sonatrach to sell more than 1 billion cubic metres of natural gas through the pipeline and dropped five of the seven conditions for Sonatrach to increase its stake in the Medgaz project from 20% to 36%. The pipeline is expected to transport at least eight ( 8) billion cubic metres of gas per year to Europe beginning in 2009.

Kikwete Endorses 300MW Power and CNG Export Project In Tanzania

TANZANIAN PRESIDENT JAKAYA Kikwete has endorsed a domestic gas to wire project as alternative commercialization options for monetizing the natural gas resource of Mnazi Bay Concession. He has also endorsed a marine compressed natural gas export project, aiming to use the same feed stock. A joint analysis of Pre-Feasibility study, undertaken for the proposed 300 MW power generation and transmission

interconnection project, collectively termed the VLPP, was presented to the president by management of Artumas, operator of the Mnazi Bay and officials of the relevant Tanzanian government in January 2008. The study recommended the VLPP and marine CNG export projects as the priority developments for natural gas utilization. Mr Kikwete advised ‘Artumas to move forward with both initiatives, targeting 2010 for start up

of commercial operations. Phase 2 analysis is underway, further examining capital and operating costs for the generation assets, assessing the economics and routing challenges for the Mtwara-Dar es Salaam transmission interconnection, and examining the environmental aspects of the overall development through an Environmental Impact Scoping Assessment. The Phase 2 Pre-Feasibility results were targeted for end-February 2008, and expected to be input to final decision regarding project sanction and financing. The VLPP has been incorporated within the TANESCO Tanzania Electricity Master Plan update, which is to be released in first-half 2008. Artumas is maintaining its focus on the marine compressed natural gas (CNG) export project, moving natural gas from Mtwara to Mombasa. Ongoing monitoring and geopolitical assessment of the political turmoil in Kenya suggests that the recent unrest should not impact the timing of the CNG export development, according to the release.

Molopo To Supply Gas To A South African Distributor

MOLOPO HAS SIGNED A Memorandum of Understanding to supply a leading South African industrial gases company, with gas generated from its Free State Gas Field. The name of the putative purchaser of the gas was not included in the press release. Molopo merely states that the company is a major gas distributor with a presence throughout sub-Sahara Africa. Under the MOU, Molopo may supply up to 80,000 gallons per day of LNG which will be used to replace high priced imported LPG with natural gas from Molopo’s plant.

Methane is currently venting from old mineral exploration boreholes in Molopo’s Free State Gas Field. Existing production has been measured at over 1 million cubic feet/day and Molopo will seek to increase these volumes by a programme that includes well work-overs, new wells and the identification of additional gas emitting boreholes. Molopo will now undertake a full feasibility study, seek reserve certification and apply to convert its Exploration Rights into a Production Right, the company said in the release. Work to date on the Free State gas project has included: Identification of existing and previous gas emitting boreholes; Measurement of gas flow rates; Gas analysis including gas composition and origin; A 2,000 sample soilgas survey; Magnetometer traverses; Geological mapping; Well workover and new well design plans.

The soilgas information was integrated with emission data to delineate areas where gas is migrating to surface at potentially commercial rates. Three high-graded areas have been identified in the Free State that could be developed independently or as one project. Molopo’s next phase of work in the region will entail analysis of seismic and other subsurface data, interpretation of the petroleum system from gas genesis and migration to potential storage, tests to enhance recoveries from existing wells, and identification of leads and drillable prospects.

Molopo is now monitoring on a daily basis gas flows from 10 wells totalling 1 MMscf/d to provide the production history to support initial reserves certification, development planning and production license application. Monitoring under advice of the independent certifiers will continue for the next 3-4 months before the reserves certification process commences.

Molopo and its South African partner will now work together to complete a definitive formal gas sales agreement.

NGC Restores Gas to Egbin

THE NIGERIAN GAS COMPANY, subsidiary of the Nigerian National Petroleum Corporation, has resumed optional supply of gas to the Egbin Thermal Station Lagos and other installations of the Power Holding Company of Nigeria (PHCN). This development rekindles the hope of improved performance by PHCN, which had blamed its lackluster performance en inadequate supply gas by NGC to rum its installations.

Gas supply to other industrial consumers nationwide has also been restored. The development follows the successful repair of the Escravos Warri Trunkline, which conveys gas from the various fields of the U.S oil major Chevron, in Escravos, by a Nigerian indigenous oil servicing contractor, De’Wayles International Limited.

De’Wayles completed the job, two years after the line was vandalized by Niger Delta militants in Chanomi Creeks, Warri South West Local Government Area of Delta State.

The pipeline, measuring 58 kilometres from Escravos to NGC, was ruptured in February 2006. It supplied 180 million standard cubic feet of gas per day to PHCN and other establishments before it was ruptured in 30 locations by the warlords. Gas was introduced into the flow line after it was certified suitable for operations by a team of engineers from NGC and De’Wavles. The oil servicing company also repaired the Odidi Central Node, which filters gas from the fields. Consequently, the pipeline had successfully conveyed gas to NGC’s Gas Treatment Plant, Ekpan, from where it was being channeled to PHCN and other customers of the NNPC subsidiary. These, Victor Egukawore. Chairman and CEO of DeWayle and Patrick Okoro, Head, Engineering and Contracts report that the gas pressure at the gas treatment plant in NGC is up to 85 bars and that the NGC has started supply of gas beyond the Warri treatment plant. “The outcome of the pressure test indicated that the integrity of the pipeline is strong. Regular supply of gas through the pipeline had resumed.”

Nigerian Gas: A Steady growth In Domestic Demand

 By Angus Djibouti

FO HEAR THE COUNTRY’ S MINISTER of energy tell it, Nigeria’s domestic gas utilization is low. “The power sector accounts for 90% of domestic consumption” says Edmund Dakouru. For the time being, that is no more than 800Million standard cubic feet per day, supplied to four thermal stations, collectively generating 2,500MW at peak. Other potential consumers of relatively large volumes of gas, such as cement manufacturers and the fertilizer industry, are only just scrambling to get up to their feet. Nigeria’s still struggling to increase the in-country demand for Liquefied Petroleum gas, targeting a measly per capita consumption of 3kg by 2008. All of which explain why the offshore market is the main destination of Nigerian gas.

But several initiatives, related to the ongoing power sector reform, the privatization of government owned companies and the emboldening of local enterprise, are giving rise to projects that will lead to projects that can only boost domestic gas use. A 150MW power plant, constructed by the River State government, was commissioned late November. Its turbines are being run with 45MMscf/d of gas from Agip’s Obrikom gas field.

The Nigerian government itself is constructing seven Thermo electric plants, under the Niger Delta Independent Power Project (NIPP), expected to consume as much as 650MMscf/d at peak capacity by 2010. Outside of the NIPP, four other government owned thermal plants are under construction in Geregu in the north of the country, Alaoji in the east, as well as Omotosho and Papalanto in the west. They will all guzzle 430MMscf/d. Pressured by the Nigerian government, major oil operators in the country-Shell, Chevron and TOTAL -are all currently engaged in various stages of construction of IPPs. Agip’s 480MW IPP has been put on stream, and its gas consumption is already accounted for in the figures stated above. ExxonMobil has been quiet on commitment to build IPP, which the Government encourages fervently, but Shell, Chevron and TOTAL have publicly stated their commitment to build power plants with total capacity of 1,828MW, expected to consume around 533MMscf/d at full throttle.

The liberalised power sector witnessed the commissioning, late 2006, of a 135MW plant to energise a new cement factory in Obajana, in Nigeria’s middlebelt. An eight inch, 90km buried gas pipeline was built from the main ObenAjaokuta gas pipeline to the site of the cement factory, supplying 60MMsf/d at take off, for firing the gas turbines as well as the kilns, with the capacity to grow to 90MMscf/d when the entire cement plant is completed.

The same gas entity, the Nigerian Gas Company, will be supplying an initial 48MMscf/d to Notore Chemicals, which recently bought over the state owned fertilizer company, the National Fertiliser Company. It would be the first time ever that a fertiliser company in Nigeria would be requiring natural gas. Under Notore’s 20 year

contract, the initial 48 MMscf per day is expected to rise to 143 MMscf per day to support Notore’s aggressive expansion programme. Notore hopes to produce 1,700 tonnes per day of urea on  commencement in March 2007, increasing to 3500 tonnes per of urea by 2010 under a second  project phase. The 20 year contract will cater for the first two phases of Notore’s urea production, but the company is looking ahead to a third project phase with the construction of a large scale plant which will take its urea production capacity up to 6,500 tonnes per day.

In Lagos, Shell is expected to supply gas to Shoreline Power, a Nigerian company planning to build a 40MW power plant in Agbara, in the west of the country. Shoreline Power acquired the ABB switchgear manufacturing facility in Lagos and is working on purchase of the ABB manufacturing facility and this is its first project outside of those it inherited. Shell is also supplying gas to a proposed power plant to be cited near the Aba industrial city in eastern Nigeria, but the project too is still at formative stage. Shell Nigeria gas says it would be supplying up to 25mscf to the IPP and other industrial customers around Ossisioma and gas supply would be extended to Owerrinta and other nearby industrial facilities in the near future.

What’s significant about these activities is that they may be small individually, but they are all coming together at the same time.

Initial oil production had associated gas which was flared, since the production areas in the Niger Delta were too remote from nascent industrial areas in the western region. Earliest use of gas in the sixties were solely for power generation while the first gas utilization for a petrochemical plant was at Eleme (now Indorama) Petrochemical in 1993. The first gas export was in the form of LPG from the Escravos Gas Project in 1997. An exponential increase in gas export was achieved in 1999 with the commissioning of the Nigerian LNG at Bonny which has been expanded from one to five trains with a sixth under construction. The success of the NLNG Bonny in response to global energy demand has resulted in the planned establishment of two other LNG projects to be sited at Brass and Olokola. These two LNG projects are expected to be operational in 2009. The 11 power plants currently under construction by the Nigerian government as well as those being built by the oil and gas operators are expected to add 7,250MW to the national grid. The resulting upsurge in the demand for gas for new projects has thrown up challenges that Dakouru, the energy minister, considers urgent, “in order to enable monetization of gas assets match the revenue accruing from oil by 2010, based on our projections”. The challenges include: Gas gathering infrastructure (backbone network in both onshore offshore with looping to enable switching of supplies in the pipeline network to where gas is mostly required)

  • Fair pricing mechanism
  • Determining actual gas reserves through collating dispersed gas data from all operators
  • Effective gas policy sustained by an effective regulatory agency to administer the sector
  • Securing investment from international investors to reduce dependence on projects from JV operators
  • Creating avenues for involvement in the gas chain
  • Investment in the development of new gas technology in order to be in the vanguard of cutting edge technology.

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