Oleum & Gas

In offshore oil and gas field development — whether on fixed jacket platforms or Floating Production Storage and Offloading (FPSO) units — space constraints, stringent safety requirements, and prolonged continuous operation are the core challenges for any equipment. CREST’s filtration and hydrocyclone systems cover the entire lifecycle from production to treatment and reinjection: from wellhead desanding to produced water purification, from TEG purification to make-up well water treatment and seawater utility filtration. With compact design, motion-tolerant performance, and low maintenance costs, CREST delivers reliable solutions for fixed platforms and FPSOs worldwide.

Fluxus typicus productionis et tractationis olei et gasis marini infra monstratur:

Nota: Nodi luteo colore notati applicationes principales apparatus CREST sunt.

Desabatio et Sabuli Purificatio

Processus :

Sabulus formationis e reservoiris arenaceis non consolidatis cum fluidis currentis in puteo velocitatibus plurium metrorum per secundum movetur, valvas, pompas et flexuras tuborum post se erodens. Systema desabationis post separatorium triphasicum installatur ut sabulum efficaciter a corrente inferiori sabulosa separaret et oleum adhaerens lavaret, apparatus post se protegens.

Provocationes:

Erosio sabuli problema perpetuum in productione marina est. Substitutio pompe multiphase damnum sabulo acceptae in FPSO miliones dolariorum costare potest, cum hebdomadibus intermissionis productionis. Accumulatio sabuli etiam volumen effectivum separatoris minuit, vitiosum circulum creans.

Solutio:

Hydrocyclones desanders efficiunt rapidam separationem solidi a liquido. Postea fluvius arenosus concentratus transibit per hydrocyclonem pro purgatione arenarum, ad normas environmentalis effluentis satisfaciens.

Products:

Apparatus automaticus pro desandingo fundi cisternae

hydrocyclon Liquid-Solid

Tractatio aquae productae

Processus :

Aqua producta e separatore triphasi continet oleum notabilem et solida suspensa, quae multistadium tractationem postulant antequam in mare effundatur aut in reservoirium reiniciatur. Platformae offshore limites strictos habent pro oleo in aqua pro effluvio, dum reinjectio exactum controllem olei et solidorum suspensorum exigit.

Provocationes:

Transgressio limitum effluentis gravissimas multas vel etiam suspensionem permittendorum operativorum inducit. Pro reinjectione, solida poros reservoirii obturant, quod pressionem injectionis subito augere et rates injectionis minuere facit. Motus continuus platformarum offshore efficaciam sedimentationis gravitatis conventionalis notabiliter minuit.

Solutio:

Adopting a cascaded treatment process, the oily produced water from the three-phase separator first passes through a hydrocyclone desander to remove formation sand and protect downstream equipment; it then enters a deoiling hydrocyclone, where centrifugal force removes most of the free oil; subsequently, it is treated in a flotation / Compact Flotation Unit (CFU) to remove emulsified oil and fine suspended solids; finally, a three-stage fine filtration consisting of a Walnut Filter, a Dual-Medium Filter, and an Injection Filter ensures that the effluent meets the requirements for sea discharge or reinjection.

Products:

hydrocyclon Liquid-Solid	Hydrocyclon Deoleans

Walnut Filter

Dual-Medium Filter

TEG Purification (Natural Gas Dehydration)

Processus:

Gas natural umidus productus in mari continet vapor aquae copiosum, qui potest causare corrosionem tuborum et obstructionem per hydrata si directe exportatur. Processus desiccationis per glycol triethylenicum (TEG) est processus maxime receptus in industria. Gas umidus primo transibit per filtrum coalescentem ad removendum liquida libera et solida, deinde intrat contactorem TEG ad contactum contracurrentem cum TEG leani, attingens desiccationem profundam. TEG dives aqua regeneratur per circuitum regenerationis et recyclatur.

Provocationes:

Condensatum, oleum lubrificans compressoris, solida in gaso alimento portata, et producta degradationis TEG ex operatione prolongata ad temperaturas altas causant effervescentiam, reductionem efficaciae desiccationis, et puncta roscidis gasi sicci inacceptabilia. Incrustatio tuborum reboilitoris requirit interruptiones frequentes pro purgatione, et amissio TEG est cara.

Solutio:

Un filtre coalescent in loco interceptat liquidos liberos et solidos, impedens effervescentiam TEG ab origine. TEG richus transibit per trinam purificationem (Filtrum Mechanicum → Filtrum Carbonis Activati → Filtrum Posteriorum) ante regenerationem. TEG leanus politur per finalem filtrum ut recirculatio pura assecuratur. Haec solutio integrata adhibet difficultates effervescentiae, obstruptionis et corrosionis.

Products:

Filtrum Coalescens.

Filter Carbon Activated

Filtrum Cartridgii.

Tractatio Aquae Fontis pro Supplemento.

Processus:

Ut pressio reservoiri maneat et recuperatio olei melior fiat, aqua subterranea (aut aqua producta tractata) elevatur, filtratur, et per pompas injectionis altae pressionis in reservoirium inicitur. Reservoiria cum permeabilitate parva praescribunt exigentias particulariter severas qualitatis aquae.

Provocationes:

Solidi suspensi et particulae in aqua supplementi, si non efficaciter removantur, obturant poros reservoirii — quod causat pressionem injectionis augere, velocitates injectionis decrescere, et in casibus gravioribus abandonationem putendorum. Expensae remediationis sunt extremo modo altas.

Solutio:

Post elevatione, aqua putealis primo transibit per hydrocyclonem desablationis ad removendos magnos granulos sabuli, deinde per filtrum globulorum fibrosorum pro filtratione subtili — maximizando protectionem reservoiris.

Products:

hydrocyclon Liquid-Solid
Filtrum Globulorum Fibrosorum

Systema Utilitatis Aquae Maris

Processus:

Pompa elevationis aquae maris trahunt aquam maris, quae deinde filtratur per filtra automatica retro-lavationis et distribuitur ad varios usus: scambiatorem frigoris processus, unitates chlorinationis aquae maris electrolyticae, et systemata aquae incendiorum in ponte. Praecisio filtrationis configuratur secundum requisita specifica usuum.

Provocationes:

Aqua maris continet magnas quantitates organismorum marinarum (medusas, algas, fragmenta conchae) et solidorum suspensorum. Sine efficaci interceptione, haec obstruent tubos scambiatorum frigoris, minuent efficientiam frigorationis; erodent electrodos cellarum chlorinationis pretiosas; et obturabunt orificia aspersionis incendiorum, compromittentes disponibilitatem aquae incendiorum in casu emergentiae.

Solutio:

Automatic backwash seawater filters sunt installati post seawater lift pumps. Fabricati ex super duplex stainless steel ad resistendum altis Cl⁻ corrosionis niveis. Plures filter elements in parallelo permittunt backwashing online, plene automaticum per differentialem pressionem aut temporatorem.

Products:

Automatic Backwash Seawater Filter

Chemical Injection System

Processus:

Offshore production requirit praecisam injectionem chemicorum — inhibitorum corrosionis, inhibitorum incrustationis, demulsificatorum, biocidiorum et inhibitorum hydratarum — in multis punctis per totum processum, ut certificetur fluxus securitas, controlus corrosionis/incrustationis et stabilitas processus.

Provocationes:

Corrosio, incrustatio, formatio hydratarum et fractio emulsionum sunt communia problemata offshore productionis quae multi-punctalem praecisam dosationem exigunt. Systemata debent operari fideliter sub motu platformae, in angustis spatiis et sub rigidis conditionibus explosion-proof.

Solutio:

Fornire pacchetti completi per iniezione chimica — che comprendono stoccaggio chimico, dosaggio preciso e distribuzione — in configurazioni modulari su skid. Pre-commissionati in fabbrica, pronti per l’uso immediato alla consegna. I componenti integrati includono serbatoi di stoccaggio, gruppi di pompe dosatrici, strumenti/valvole, pannelli di controllo e tubazioni.

Products:

Chemical Injection Skid