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Potenza
Abstract The paper illustrates the activities conducted to develop a produced water treatment system with the final goal of reaching sustainable water handling in line with Company circular economy objectives and the Sustainable Development Goals of 2030 Agenda. Treated water will meet industrial demand achieving zero-footprint on local resources. Eni Rewind applied an experimental approach to evaluate, test, validate and design an integrated process for the treatment of produced water. The activity involved a sampling campaign on produced water with thorough analysis of the water (focusing on physical and chemical characteristics) and laboratory testing. Based on the results new plants was designed with an approach that combines sustainability, business drivers and technology such as the following: • Satisfy plant needs in terms of industrial water • Reduce the quantity of waste to be handled • Minimize power consumptions • Reduce OPEX • Use of best available Technologies Design data has been used to realize a pilot plant which successfully treated a feed of about 4 m3/h. Starting from the pilot plant results the treatment scheme has been scaled up to higher capacity. Currently a 72 m3/h plant, called " Blue Water", is undergoing the permitting procedures to be installed in Viggiano, Potenza, Italy. It has a full ZLD (Zero Liquid Discharge) approach aimed to avoid any discharge to surface water and satisfy industrial water need for the oil treatment plant. The expected efficiency of the plant is about 95% of incoming feed. A new sustainable approach to manage and recover produced water within circular economy Company objectives has been applied to a specific case in Italy, with particular and challenging constraints, set by internal Eni standards for reliability and efficiency performance and local and national regulation. The designed plant is based on technologies that can be customized to meet needs for other plants. A 145 mc/h plant based on the same technology, but without ZLD approach, called TBW, is going to be designed, with the aim of produce low saline water to satisfy part of a Eni Refinery needing starting from produced water (coming by tank truck from oilfield operations), reducing Refinery water footprint.
Industry:
- Water & Waste Management > Water Management > Lifecycle > Treatment (1.00)
- Energy > Oil & Gas > Upstream (1.00)
SPE Disciplines: Health, Safety, Environment & Sustainability > Environment > Water use, produced water discharge and disposal (1.00)
Abstract The Tempa Rossa oil Project is located in southern Italy, 50 km south of Potenza in a mountainous area at an altitude ranging between 500 and 1050 m. The main project components are:Eight producing wells, Site preparation for the construction of surface facilities and access roads, Surface facilities for oil and gas treatment Pipelines, flowlines, electrical and control cables between the surface facilities and the wells. The construction phase of the project presents many challenges, particularly:Complexity of the geological conditions, Hard climatic conditions during the winter season (heavy rain, strong wind, low temperature with snow and frost). Surface facilities are located in elevated and remote area with difficult access by mountainroads. Specific organization is put in place for the transport of the equipments and the construction of the plants. Pipelines and flowlines are running through the mountains and their rights of way are crossed by several interferences: archeological sites, high voltage power cable… The construction has been adapted to install the pipelines and to manage the interferences in a manner to cope with the project schedule. This paper presents some information related to the construction phase of the Tempa Rossa Project. The main challenges and difficulties are presented and the associated solutions are summarized. Special focus on HSE aspects to achieve safe construction and preservation of the environment is also included in this paper.
construction, construction activity, construction phase, daily capacity, flowline, gas monetization, installation, interference, liquefied natural gas, liquified natural gas, LNG, LPG centre, Oil Centre, pipeline, preparation activity, produced water discharge, specification, Tempa Rossa project, Upstream Oil & Gas, Workshop
Oilfield Places:
- Europe > Italy > Basilicata > Sauro Valley > Tempa d’Emma Concession > Laurenzana Permit > Tempa Rossa Field > Apulian Formation (0.99)
- Europe > Italy > Basilicata > Sauro Valley > Tempa d’Emma Concession > Gorgoglione Concession > Tempa Rossa Field > Apulian Formation (0.99)
- Europe > Italy > Basilicata > Sauro Valley > Perticara Concession > Laurenzana Permit > Tempa Rossa Field > Apulian Formation (0.99)
- (4 more...)
Criteria For The Execution Of Two Road Tunnels In Pliocene Clays Of Southern Appenines And A Derivation Tunnel In The Same Ground Types
Beomonte, Mario (Ingenieur en chef a la "C. Lotti & Associati - Societa di Ingegneria S.p.A." Rome) | Lupo, Anacleto (Technicien en chef a la "C. Lotti & Associati - Societa di Ingegneria S.p.A." Rome) | Perretta, Filippo (Ingenieur industriel a la "C. Lotti & Associati - Societa di Ingegneria S.p.A." Rome)
SUMMARY: This paper describes the criteria used for constructing two road tunnels, with a section of 100 m2 approximately, excavated in Pliocene clayey formations of the Southern Appennines. A soil mechanics study, with tests of undisturbed samples, provided the characteristics of the Pliocene clays, which were highly consolidated. These characteristics were correlated with the various degrees of difficulties encountered during the construction of the two tunnels. In addition, the results of the different surveys carried out during construction are also given. On the basis of this experience and the methods and criteria used, a diversion tunnel was designed with a section of 20 m2 for construction in the aforesaid formation. RESUME: Le memoire decrit les critères adoptes pour la construction de deux tunnels routiers, d'une section d'environ 100 m2, dans des formations argileuses pliocènes des Apennins du Sud. II precise ensuite les caracteristiques geomecaniques des argiles pliocènes - qui sont fortement consolidees - definies par des essais sur des echantillons intacts. Ces caracteristiques sont mises en rapport avec les degres de difficultes rencontres durant l'execution des deux tunnels. Les resultats des releves effectues pendant les travaux sont egalement indiques. Les critères susdits et l'experience acquise au cours de ces travaux ont servi de base pour le projet d'une galerie de derivation d'une section de 20 m2, à realiser aussi dans les formations precitees. ZUSAMMENFASSUNG: In der Abhandlung werden die Ausfuehrungskriterien dargelegt, die beim Bau von zwei Strassentunnel mit Querschnitten von ca. 100 m2 durch tonige Formationen aus dem Pliozan im suedlichen Appennin angewendet wurden. Es werden die geomechanischen Charakteristiken der stark verfestigten Tonschichten des Pliozans behandelt, wie sie an jungfraulichen Proben festgestellt wurden. Diese Charakteristiken werden mit den unterschiedlichen Schwierigkeitsgraden in Verbindung gebracht, die bei der Ausfuehrung der beiden Tunnel auftraten. Ebenso werden die Ergebnisse der verschiedenen Untersuchungen wahrend der Bauarbeiten angefuehrt. Diegleichen Kriterien und die gemachten Erfahrungen wurden dann der Planung eines Wasserstollens mit einem Querschnitt von ca. 20 m2 zugrunde gelegt, der durch dieselbe geologische Formation zu bauen ist. 1. AVANT-PROPOS Parmi les ouvrages executes pour la realisation du 3ème tronçon de la route de la vallee du fleuve Sinni, figurent, à côte du barrage de Monte Cotugno situe à la ligne de demarcation entre les provinces de Potenza et de Matera, les tunnels "Serra della Pietra" et "Spogliamonaco". D'une longueur respective de 750 m et de 1.400 m, ils ont tous deux une surface de deblai d'environ 100 m2 et une surface de revêtement de quelque 27 m2. Les sols affleurant au droit du tunnel Serra del Ia Pietra sont des argiles gris-bleu à fracture conchoîde, à stratification indistincte, avec des intercalations d'argiles sableuses et de sables gris clair. Les sols affleurant au droit du tunnel Spoglia- monaco sont constitues par la formation dite d'Aliano: sables jaunes à grain moyen-fin, plus ou moins argileux, faiblement cimentes, en couches d'epais- D'après la bibliographie geologique existante, la formation des sables d'Aliano remonte à l'age Calabrien, celle des argiles gris-bleu au Pliocène superieur - Calabrien. En ce qui concerne les deblais, les caracteris tiques des sols ont ete très differentes dans l'un et l'autre cas, ce qui a conditionne d'une manière substantielle les critères adoptes pour l'execution des ouvrages. Le present memoire expose les differents degres de difficulte rencontres dans l'execution des deux tunnels en fonction des caracteristiques geotechniques des sols traverses, caracteristiques definies par des essais effectues en laboratoire sur des echantillons intacts. 2. CARACTERISTIQUES GEOTECHNIQUES DE LA FORMATION ARGILEUSE INTERESSANT LES DEUX TUNNELS Le tableau l ci-après indique ces caracteristiques. De l'examen des valeurs moyennes reportees dans ce tableau il resulte que les sols du site du tunnel Spogliamonaco ont des caracteristiques nettement inferieures à celles du site du tunnel Serra della Pietra, bien que les deux zones en question appartiennent, du fait de la valeur elevee du poids specifique in situ et des tensions de rupture, au domaine des roches et non des sols. Un autre element d'affinite est represente par les courbes granulometriques (fig. 2), malgre la grande dispersion des valeurs, pour les deux zones, surtout en ce qui concerne la fraction la plus fine. Les diagrammes de la fig. 3 mettent en evidence les deux situations differentes de la formation interessant les deux tunnels, et en particulier les domaines differents dans lesquels sont comprises, dans l'un et l'autre cas, les valeurs de Wn, γd, γ, n, σf. Enfin, à l'aide du diagramme de 1a fig. 4 on a obtenu, par la methode des ecarts minimaux quadratiques, l'expression analytique de la courbe de la resistance à la compression σf en fonction de la teneur naturelle en eau Wn. Cette figure fournit 1es droites representatives de σf en fonction de Wn, aussi bien pour les deux cas consideres separement que pour la totalite des valeurs prises dans leur ensemble.
Country:
- Europe > Italy > Basilicata > Potenza Province > Potenza (0.24)
- Europe > Monaco (0.24)
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