scholarly journals Control-Oriented Modeling and Experimental Validation of a Deoiling Hydrocyclone System

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1010
Author(s):  
Mads V. Bram ◽  
Stefan Jespersen ◽  
Dennis S. Hansen ◽  
Zhenyu Yang
Keyword(s):  
Oil And Gas ◽  
Produced Water ◽  
Environmental Pollutants ◽  
Gas Production ◽  
Separation Performance ◽  
Test Bed ◽  
Oil And Gas Production ◽  
Modeling Methodology ◽  
Offshore Oil And Gas ◽  
Separation Equipment

As the treated water from offshore oil and gas production is discharged to the surrounding sea, there is an incentive to improve the performance of the offshore produced water treatment, to reduce the environmental pollutants to the sea. Regulations determine both the maximum allowed oil concentration and the total annual quantity. It is reasonable to assume that when better separation equipment or methods are developed, the regulation will become more strict, and force other producers to follow the trend towards zero harmful discharge. This paper develops and validates a hydrocyclone model to be used as a test-bed for improved control designs. The modeling methodology uses a combination of first-principles to define model structure and data-driven parameter identification. To evaluate and validate the separation performance, real-time fluorescence-based oil-in-water (OiW) concentration monitors, with dual redundancy, are installed and used on sidestreams of a modified pilot plant. The installed monitors measure the inlet and outlet OiW concentration of the tested hydrocyclone. The proposed control-oriented hydrocyclone model proved to be a reasonable candidate for predicting the hydrocyclone separation performance.

scholarly journals Analysis of bacterial diversity and metals in produced water, seawater and sediments from an offshore oil and gas production platform

2011 ◽  
Vol 62 (10) ◽  
pp. 2095-2105 ◽  
Author(s):  
C. William Yeung ◽  
Brent A. Law ◽  
Tim G. Milligan ◽  
Kenneth Lee ◽  
Lyle G. Whyte ◽  
...  
Keyword(s):  
Bacterial Diversity ◽  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Production Platform ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Construction of a sustainability indicators system for offshore oil and gas production units

2021 ◽  
Vol 21 (3) ◽  
pp. 147-161
Author(s):  
Lucia Maria de Araujo Lima Gaudencio ◽  
Rui de Oliveira ◽  
Wilson Fadlo Curi
Keyword(s):  
Decision Making ◽  
Sustainable Management ◽  
Oil And Gas ◽  
Current Knowledge ◽  
Management Practice ◽  
Gas Production ◽  
Sustainability Indicators ◽  
Oil And Gas Production ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Production units located in the Brazilian marine environment are responsible for the production of 95.7% of oil and 78.8% of natural gas of Brazil causing economic, environmental, and social impacts motivating us to construct a system of indicators as a tool aimed to improve the sustainable management practice of these production units. To date, one of the tools most used by the oil industry is the sustainability report, oriented by guidelines from international organizations. However, these reports have a corporate character being unable to help the sustainability management of production units’ activities. The indicators were selected based on a systemic approach, using current knowledge on sustainability indicators, together with the survey of aspects relevant to the operation and management of offshore oil and gas production units. This paper describes the proposed indicators and presents the hierarchical structure of the system, built on the economic, environmental, social, and operational dimensions. The application of the proposed system of indicators, based on multicriterial and multiple decision-making analyses, validates a complex decision process, providing improved sustainable management of offshore production units by identifying points for which the necessary measures and actions can be implemented. Keywords: offshore oil and gas production; sustainability indicators; multicriteria and multiple decision-making analyses.

Offshore Oil and Gas Production and Transportation

2019 ◽  
pp. 99-126
Author(s):  
Shashi Shekhar Prasad Singh ◽  
Jatin R. Agarwal ◽  
Nag Mani
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Integrated Approach to Produced Water Disposal Management in a Brown Field: Safeguarding Production, Reducing Cost, Managing Deferment & Reducing HSSE Exposure

2021 ◽  
Author(s):  
Basil Ogbunude ◽  
Aniekan Obot ◽  
Abdul-Wahab Sa'ad ◽  
Sunday Maxwell-Amgbaduba ◽  
Etta Agbor ◽  
...  
Keyword(s):  
Water Management ◽  
Oil And Gas ◽  
Produced Water ◽  
Integrated Approach ◽  
Gas Production ◽  
Plant Oil ◽  
Endurance Time ◽  
Oil And Gas Production ◽  
Liquid Line ◽  
Positive Cash Flow

Abstract Often, the production of oil and gas from underground reservoirs is accompanied by produced water which generally increases with time for a matured field, attributable to natural water encroachment, bottom water ingress, coning effect due to higher production rates, channeling effects, etc. This trend poses a production challenge with respect to increased OPEX cost and environmental considerations of treatment/handling and disposal of the produced water considering the late life performance characterized by low reward margins. Hence, produced water management solutions that reduce OPEX cost is key to extending the field life whilst ensuring a positive cash flow for the asset. SK field is located in the Swamp Area of the Niger Delta, with a capacity of 1.1Bcf gas plant supplying gas to a nearby LNG plant. Oil and gas production from the field is evacuated via the liquid and gas trunk lines respectively. Due to the incessant tampering with oil delivery lines and environmental impact of spillage, the condensate is spiked through the gas trunk line to the LNG plant. Largely, the water/effluent contained in the tank is evacuated through the liquid line. Based on the availability of the liquid line (ca. 40%-60%), the produced water is a constraint to gas production with estimated tank endurance time (ca. 8 days at 500MMscfd). This leads to creaming of gas production and indeed gas deferments due to produced water management, making it difficult to meet the contractual supply obligation to the LNG plant. An interim solution adopted was to barge the produced water to the oil and gas export terminal, with an associated OPEX cost of ca. US$2Mln/month. Upon further review of an alternate barging option, this option was considered too expensive, inefficient and unsustainable with inherent HSSE exposure. Therefore, a produced water re-injection project was scoped and executed as a viable alternative to produced water management. This option was supported by the Regulators as a preferred option for produced water management for the industry.

Control of produced water with highly corrosive medium in oil-gas production

2021 ◽  
pp. 24-27
Author(s):  
F.G. Hasanov ◽  
◽  
S.B. Bayramov ◽  
R.M. Hasanzade ◽  
A.B. Garayev ◽  
...  
Keyword(s):  
Corrosive Medium ◽  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Electrochemical Protection ◽  
Oil And Gas Production ◽  
Separation Unit ◽  
Associated Gas ◽  
Initial Separation ◽  
Oil Water

The construction of middle oil-gathering facility, in which technological processes are managed in a closed medium is necessary for environmental protection to control highly corrosive medium in oil and gas production. Associated gas separated from the fluid in initial separation unit within middle oil-gathering facility enters gas-gathering point with low pressure, and the liquid - into the pig of oil, water and sand, which should be constructed from iron concrete for cleaning from mechanical impurities sediments and salt as well. The liquid charge from the separation unit and pig of oil, water and sand is based upon the law of communicating vessels. To supply long-life for reservoirs, the inner and outer walls should be covered with a special coating and additionally, electrochemical protection should be provided as well.

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