Cosa sò i vantaghji è Tu me d 'acqua - secrete lieu basatu - basatu è oliu?

First of all, both water-based and oil-base drilling fluids have advantages and disadvantages, and they adapt to different stratigraphic conditions. Therefore, there is no superior or inferior stratum, and it is impossible to arbitrarily say which one is the future development trend. API and IADC classify the drilling fluid system into nine categories, the first seven types are water-based drilling fluid, the eighth type is oil-based drilling fluid, and the last type is gas as the basic medium. Non-dispersive system, 2, dispersive system, 3, calcium treatment system, 4, polymer system, 5, low-solid system, 6, saturated brine system, 7, well completion fluid system, 8, oil-base drilling fluid system, 9, air, fog, foam and gas system.
Water-based drilling fluid has the advantages of low cost, simple configuration, treatment and maintenance, wide source of treating agent, multiple types available for selection, easy control of performance, etc., as well as good protective effect of oil and gas layer. Oil-base drilling fluid refers to the oil as the continuous phase drilling fluid. As early as the 1920s, crude oil was used as drilling fluid to avoid and reduce the occurrence of various complicated situations in drilling. However, it is found in practice that crude oil has the following disadvantages: small shear force, difficult to suspend barite, large filtration loss, and volatile components in crude oil can easily cause fire. As a result, it gradually developed into two oil-base drilling fluids with diesel as continuous phase -- all-oil drilling fluid and water-in-oil emulsion drilling fluid. In total oil drilling fluid, water is useless component, its water content should not exceed 7%. In oil-ladle water drilling fluid, water is distributed evenly in diesel oil as the necessary component, and its water content is generally 10%~60%.
Cunfrontu cù scinariu lieu-basatu 'acqua, pò scinariu oliu-basi lieu cun resistenza alta temperatura, resistenza à u sali, Cuntaminazzioni calciu, resistenti muru borehole, bona lubricity è di hydrocarbon danni riserva hè assai nica, è altre vantaghji, hè avà diventa una Francese drill difficiule Temperature altu nton puzzu, altu Angle tempu è Wells horizontale è i mezi impurtanti di diversi furmazzioni cumplessa, è pò esse anchiamènti usatu per Folliculinum Cambrésis, perforating scinariu maturà, scinariu workover e lu cori voglia scinariu. Perciò, u costu a preparazione di scinariu lieu oliu-basi hè assai supiriuri a chidda chi di scinariu lieu acqua-basi, è quandu usatu, si vi spessu causari seriu nfluenza supra l 'ambienti eculogicu, vicinu à u situ bonu, e la vilucitati lieu miccanicu hè generalmente bassa ca di scinariu lieu acqua-basi. Sti Tu me limità assai la diffusioni e dumanda di secrete oliu-basi lieu. In ordine per migliurà tariffa lieu, bassu Gel pacchettu oliu paint acqua scinariu lieu fù anchiamènti usatu da a mità di-anni 1970. In Pà a prutezzione di l 'ambienti eculogicu è adattà si à i bisogni di lieu burrasca, da u principiu di 1980ini, l' ogghiu-acqua scinariu bassu-Aventura paint lieu cù oliu minerale comu l 'ogghiu basi statu pocu pupulari. At prisente, tutte e-oil scinariu lieu ha statu usatu menu, accussì lenti di parlà, u scinariu oliu-basi lieu si rifirisci a lu scinariu paint lieu acqua-in-oliu cù oliu gasoil o oliu minerale bassu-Aventura (oliu biancu) cum'è i cuntinui fase.
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tempu Post: Aug-09-2018

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