Produced water management - A mathematical model to trade-off economic cost and environmental impact for infrastructure utilisation

2020 ◽  
Author(s):  
Afrah AlEdan ◽  
Tohid Erfani
Keyword(s):  
Water Management ◽  
Mathematical Model ◽  
Environmental Impact ◽  
Oil And Gas ◽  
Produced Water ◽  
Economic Cost ◽  
Gas Production ◽  
Mixed Integer ◽  
Oil And Gas Production ◽  
High Level

<p>This research provides an overview on several areas related to produced water management including cost, treatment methods, recycling options and environmental impact. Produced water is a type of water that has been trapped in different quantities in underground formations. After extracting crude oil and during the production process, the associated water from underground formations is known as produced water. This type of water is by far the largest volume by product or waste stream associated with oil and gas production. It is likely containing high level of total dissolved solids because of its longer residence time under the ground in addition to the smaller flow rate<strong>.</strong> Moreover, many efforts have been paid globally to decrease the high salinity level in produced water by applying desalination technologies as sustainable water management solution.</p><p>Oilfield water management is one of the most challenging system and it follows a non-linear relationship between its components. We formulate and develop a mixed-integer mathematical model to a small case study related to Kuwait Oil Company for an optimal design and operations of produced water management. We show how the results allow studying the economic cost as well as environmental impact related to produced water management system.</p><p> </p><p> </p>

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.

scholarly journals Investigation of Carbon Dioxide Corrosion Inhibitors for Steel for Use in Oil and Gas Production

2020 ◽  
Vol 129 (4) ◽  
pp. 14-18
Author(s):  
L. A. Magadova ◽  
◽  
K. A. Poteshkina ◽  
V. D. Vlasova ◽  
M. S. Pilipenko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Corrosion Inhibitors ◽  
Oil And Gas ◽  
Produced Water ◽  
Gas Production ◽  
Gravimetric Analysis ◽  
Carbon Dioxide Corrosion ◽  
Oil And Gas Production ◽  
Protective Properties ◽  
Industrial Samples

The effect of carbon dioxide corrosion on the pipeline transport system and its protection methods are considered in this article. The corrosion inhibitors represented by imidazoline-based compositions and industrial samples of corrosion inhibitors are used as protective reagents, and the model of produced water saturated with carbon dioxide is used as an aggressive environment. The protective properties of inhibitors and the corrosion rate were evaluated by gravimetric analysis. The paper presents the results of the study of industrial samples and inhibitory compositions developed on the basis of the REC “Promyslovaya himiya”. According to the results of the work, a positive effect of additives of nonionic surfactants on the protective properties of inhibitors was noted.

scholarly journals Application of the finite element-differences method for modeling of filtration processes

2019 ◽  
pp. 114-117
Author(s):  
M. V. Lubkov
Keyword(s):  
Finite Element ◽  
Oil And Gas ◽  
Gas Production ◽  
Production Well ◽  
Phase Permeability ◽  
Filtration Process ◽  
Oil And Gas Production ◽  
Production Wells ◽  
High Level ◽  
Direct Acting

We consider modeling and geophysical interpretation of the obtained results in the oil and gas production problems. For solving these practical problems, we use combined finite element-differences method of resolving piezoconductivity problem with calculation of heterogeneous filtration parameters distribution of oil and gas productive reservoirs and oil-gas penetration conditions in the borders of the reservoirs. At that, we consider the main factors, which influence on the intensity of filtration processes near oil production well and gas production well respectively. These factors are important for effective supporting in practice high level of the oil and gas production. On the base of computer modeling, we have showed that intensity of filtration process near the acting oil and gas production wells mainly depends on oil phase and respectively gas phase permeability, as in close zone of well acting so in remote zone. The viscosity and reservoir porosity parameters in close and remote zones of the well action have little direct effect on filtration process near the acting well. However, these parameters can influence on the filtration process implicitly via direct acting on the respective phase permeability. We also have carried out analysis of the pumping well influence on the filtration process near production well in different practical cases.

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