Modernization of gas separators for central processing facility

2020 ◽  
Author(s):  
A. A. Buzlukov ◽  
L. V. Taranova ◽  
A. M. Glazunov
Keyword(s):  
Central Processing ◽  
Processing Facility

scholarly journals A Techno-economic Evaluation of Adding Silica Nanoparticles to Enhance the Demulsification Process in a Crude Oil Central Processing Facility

2021 ◽  
Author(s):  
Shireen Hassan ◽  
Babiker Abdalla ◽  
Mustafa Mustafa
Keyword(s):  
Economic Evaluation ◽  
Crude Oil ◽  
Silica Nanoparticles ◽  
Production Cost ◽  
Net Present Value ◽  
Central Processing ◽  
Oil Processing ◽  
Software Model ◽  
Processing Facility ◽  
Demulsification Process

In this study, a techno-economic evaluation of the use of silica nanoparticles to enhance the demulsification process, in crude oil, has been investigated. A software model has been developed in MS Excel of the central processing facility (CPF). A sensitivity analysis of key parameters on production cost and Net Present Value (NPV) has been carried out for different flowsheet selection options. Comparison of flowsheets on an equal plant capacity basis results in a 19% reduction in the production cost whereas comparison on a fixed annual crude oil processing basis results in a reduction in production cost of only 3.7%.

Impact of the Finance Act 2020 on Gas Utilization Projects

2021 ◽  
Author(s):  
Kaase Gbakon
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Qualitative Assessment ◽  
Central Processing ◽  
Gas Processing ◽  
Gas Utilization ◽  
Processing Facility ◽  
Financing Costs ◽  
Investor Returns ◽  
The Impact

Abstract The newly passed Finance Act 2020 (FA2020) in Nigeria is reviewed especially as it relates to the oil and gas industry. The review is partly executed by modeling the specific provisions of the Act that impact gas utilization projects. The effect of the provisions on investor returns as well as the extent to which government objectives are met is ascertained – the government objectives being to prevent tax leakage via excessive financing costs, as well as encourage gas development and utilization. A qualitative assessment of the FA2020 is first conducted to examine its provisions applicable to the oil and gas sector. Furthermore, a spreadsheet Discounted Cash Flow (DCF) economic model of a gas central processing facility is built. A hypothetical $800Million (CapEx), 300mmscfd gas processing facility, which is 70% debt financed is modeled by incorporating the provisions of the FA2020. The metrics of the project (both investor and government) are then compared under the scenarios of with and without the FA2020. Key results indicate that the economic returns to investor in the gas processing facility are still largely preserved at a healthy level, even as government take improves by $102Million due to the FA2020. Specifically, without the FA2020, investor returns an IRR of 21.11% while due to the FA2020, investor IRR declines to 19.79%. Sensitivity analysis serves to illustrate one of the aims of the FA2020, which is to prevent tax loss from high cost of financing. Lengthening the tenor of loans reduces the fraction of the financing costs that is tax deductible. The modeling result shows that, ceteris paribus, for one (1) year increase in loan tenor, the amount of financing cost that is tax deductible reduces by 5%. Another important outcome is that for every $1 of government receipts preserved/enhanced by the FA, the investor NPV declines by 38cents This impact assessment of the FA2020 on gas utilization projects is conducted against the backdrop of several government pronouncements and policy positions to encourage domestic gas development. Financing plays an important role in delivering gas projects, consequently the evaluation of the impact of the FA2020 becomes imperative. This is to allow an examination of the effect of the Act on the ability to meet the strategic objective of powering the economy via gas while fulfilling Nigeria’s climate change commitments by deeper adoption of gas as a transition fuel.

Designing the world's largest semi-submersible central processing facility

2012 ◽  
Vol 52 (2) ◽  
pp. 685
Author(s):  
Claude Cahuzac
Keyword(s):  
Weather Conditions ◽  
Processing Unit ◽  
Gas Field ◽  
North West ◽  
Central Processing ◽  
Gas Processing ◽  
Design Considerations ◽  
Processing Facility ◽  
Production Wells ◽  
Sheer Size

What are the key design considerations driving the successful delivery of the world’s largest semi-submersible Central Processing Facility (CPF), to be installed at the Ichthys gas field in the Browse Basin, 200 km offshore North West Australia? Extreme cyclonic weather conditions, separating condensate from the gas stream, accommodating 150 personnel, and the sheer size of the gas processing unit at 110,000 tonnes, have created unprecedented challenges for the Ichthys design team. This extended abstract explores the design and planned construction of this massive piece of equipment. The CPF, measuring 110 m x 110 m, will be anchored to the seabed in about 250 m of water using 28 mooring chains. During the 40-year life of the project, the unit will collect gas from a network of up to 50 subsea production wells drilled into reservoirs 4,000–4,500 m beneath the seabed. From the CPF, condensate will be sent to a Floating Production Storage Offtake (FPSO) vessel moored nearby. The gas will be compressed and sent by an 885-km subsea pipeline to Darwin for processing into LNG, LPG and residual condensate. INPEX with its Ichthys joint venturer, Total, will be shipping 8.4 million tonnes of LNG and 1.6 million tonnes of LPG a year, as well as 100,000 barrels of condensate a day at peak. Successful delivery of the Ichthys Project will ensure INPEX achieves its goal of becoming the operator of a major LNG facility, while helping reach its target of producing 800,000 boe/d by 2020.

Biofouling risk management for the importation of a floating production, storage and offloading (FPSO) facility and the central processing facility (CPF); the world's largest semi-submersible platform

2019 ◽  
Vol 59 (2) ◽  
pp. 596
Author(s):  
Nick Gust ◽  
Ashley Coutts ◽  
Patrick Lewis ◽  
Rene Tigges ◽  
Jake Prout ◽  
...  
Keyword(s):  
Marine Species ◽  
Risk Assessments ◽  
Central Processing ◽  
Antifouling Coating ◽  
Management Measures ◽  
Novel Approach ◽  
Water Cleaning ◽  
Processing Facility ◽  
Cleaning Methods ◽  
Species Specific

Two key facilities for the INPEX-operated Ichthys LNG project; the central processing facility (CPF) and floating production, storage and offloading (FPSO), were constructed in South Korean ports and towed to offshore Australian waters. To meet regulatory requirements for their importation, and mitigate potential invasive marine species (IMS) introduction, species-specific biofouling risk assessments were completed, and a series of management measures implemented. Risk assessments quantified the theoretical likelihood of the facilities introducing IMS via biofouling. The assessments considered (but were not limited to) the type of antifouling coating (AFC), time alongside, niche areas, and likelihood of IMS surviving in offshore waters at the Ichthys Field if translocated. The two facilities had different AFCs on their submerged hulls (CPF: biocidal, FPSO: non-biocidal). The theoretical risk of introducing IMS to Australian waters was considered ‘uncertain’, requiring completion of an extensive pre-mobilisation cleaning program in-water (CPF >600 dive hours and FPSO 2381 dive hours). The FPSO was cleaned twice due to a delay and recolonisation on the non-biocidal AFC. To determine the most efficient cleaning methods, various in-water cleaning technologies were trialled. Due to the size and complexity of the facilities, biofouling inspectors were deployed throughout the operation to increase confidence in the outcomes. After the arrival of the facilities at the Ichthys Field, dedicated underwater surveys were conducted to assess biofouling communities and collect specimens for molecular analysis, using a specially designed sampling tool. The associated outcomes demonstrated that the risk was acceptable and had been reduced to as low as reasonably practicable, validating the novel approach taken.

scholarly journals Ionospheric tomographic common clock model of undifferenced uncombined GNSS measurements

2021 ◽  
Vol 95 (11) ◽  
Author(s):  
Germán Olivares-Pulido ◽  
Manuel Hernández-Pajares ◽  
Haixia Lyu ◽  
Shengfeng Gu ◽  
Alberto García-Rigo ◽  
...  
Keyword(s):  
Real Time ◽  
Carrier Phase ◽  
Wide Area ◽  
Clock Model ◽  
Precise Positioning ◽  
Phase Measurements ◽  
Central Processing ◽  
Processing Facility ◽  
Gnss Network ◽  
Gnss Measurements

AbstractIn this manuscript, we introduce the Ionospheric Tomographic Common Clock (ITCC) model of undifferenced uncombined GNSS measurements. It is intended for improving the Wide Area precise positioning in a consistent and simple way in the multi-GNSS context, and without the need of external precise real-time products. This is the case, in particular, of the satellite clocks, which are estimated at the Wide Area GNSS network Central Processing Facility (CPF) referred to the reference receiver one; and the precise realtime ionospheric corrections, simultaneously computed under a voxel-based tomographic model with satellite clocks and other geodetic unknowns, from the uncombined and undifferenced pseudoranges and carrier phase measurements at the CPF from the Wide Area GNSS network area. The model, without fixing the carrier phase ambiguities for the time being (just constraining them by the simultaneous solution of both ionospheric and geometric components of the uncombined GNSS model), has been successfully applied and assessed against previous precise positioning techniques. This has been done by emulating real-time conditions for Wide Area GPS users during 2018 in Poland.

Maximising value in mega-projects: Ichthys LNG project

2016 ◽  
Vol 56 (2) ◽  
pp. 576
Author(s):  
Cornelis van der Linden ◽  
Bill Townsend
Keyword(s):  
Project Management ◽  
State Of The Art ◽  
Processing Plant ◽  
Interface Management ◽  
Production Chain ◽  
Central Processing ◽  
Processing Facility

The INPEX-led Ichthys LNG Project is one of the world's most complex gas developments, incorporating all elements of the production chain. It is three mega projects rolled into one. The offshore project includes the world’s largest semisubmersible central processing facility and a large floating production, storage and offloading facility. An 890 km subsea gas export pipeline joins offshore facilities to a state-of-the-art onshore processing plant near Darwin. Managing more than 30,000 personnel working across the globe to construct this project demands excellence in project management. INPEX’s approach allows seamless interface management and a tight grip on cost and schedule to deliver a complicated, giant project, and 40 years of future field operations.

Early engagement with NOPSEMA

2014 ◽  
Vol 54 (2) ◽  
pp. 510
Author(s):  
Claude Cahuzac
Keyword(s):  
Joint Venture ◽  
Investment Decision ◽  
Good Communication ◽  
Central Processing ◽  
Processing Facility ◽  
Safety Case ◽  
Engagement Process ◽  
First Time ◽  
Voluntary Basis

The Ichthys LNG Project includes a central processing facility (CPF) that is the world’s largest semi-submersible platform. The Ichthys CPF is also the first semi-submersible in Australian waters. Given the novelty of the development concept, the complexity of the design, and the scale of the facilities, the Ichthys Project joint venture participants INPEX and Total wanted to gain a better understanding of what the Australian regulators would be looking for as part of the approval process prior to committing to a final investment decision (FID). On a voluntary basis, the project launched an early engagement with NOPSA (later NOPSEMA) in 2011 to review the design safety case for the CPF. This was the first time such an early engagement process had been undertaken by the regulator. A significant benefit of the early engagement process for both parties was good communication and feedback leading to the establishment of a mutually beneficial long-term relationship. The early engagement process identified no show stoppers at that stage. Feedback from the regulator was incorporated in the detailed engineering. The Ichthys Project considers that the early engagement process with NOPSEMA was positive and constructive. It contributed to an FID being taken in January 2012. INPEX continues to engage proactively with NOPSEMA.

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