摘要:
Verfahren zum Herstellen von flüssigen Formulierungen, mindestens umfassend eine flüssige Phase sowie Fasern, wobei man die Fasern in Form einer thixotropen, sedimentationsstabilen Formulierung, umfassend mindestens Fasern, ein Lösemittel, sowie ein verdickend und thixotropierend wirkendes Additiv bereitstellt, wobei man die Formulierung in einem Behälter umfassend eine verschließbare Öffnung zum Einsatzort transportiert, man den Behälter am Einsatzort durch Abpumpen der thixotropen, sedimentationsstabilen Formulierung entleert, und man die abgepumpte thixotrope, sedimentationsstabile Formulierung in die flüssige Phase eindosiert. Bevorzugt handelt es sich bei der flüssigen Formulierung um eine Formulierung zum Fracturing.
摘要:
Methods of treating a subterranean formation include forming a treatment fluid including an aqueous base fluid, a proppant, a water soluble polymer; and hydrophilic fibers having a length of about 100 microns to 10 millimeters. Such methods include placing the treatment fluid in the subterranean formation.
摘要:
Compositions for suspending proppants in a hydraulic fracture of a subterranean formation involve a carrier fluid, a plurality of proppants, and a plurality of fabric pieces where each fabric includes a plurality of connected filaments. A method of using the compositions includes hydraulically fracturing the subterranean formation to form fractures in the formation; during and/or after hydraulically fracturing the subterranean formation, introducing proppants into the fractures; during and/or after hydraulically fracturing the subterranean formation, introducing fabric in the form of fabric pieces into the fractures, where the fabric contacts and inhibits or prevents the proppant from settling by gravity within the fractures; and closing the fractures against the proppants. Optionally a portion of the fabric pieces may be hydrolyzed. In another option, the fabric pieces may each comprise at least one shape changing filament.
摘要:
Embodiments disclosed herein relate to a fluid for use in well treatment having a carrier fluid and a plurality of altered fiber particles having a plurality of defects on a surface of the fiber particles. The fluid may be used for a method of fracturing a subterranean formation. The method includes injecting a fracturing fluid into a wellbore through the subterranean formation, thereby creating a fracture network in the subterranean formation, the fracturing fluid comprising a proppant and a plurality of fibers having a plurality of defects on a surface of the fibers.
摘要:
A variety of systems, methods and compositions are disclosed, including, in one method, a method for well treatment may comprise providing a treatment fluid comprising an aqueous base fluid; and a nanofribril cellulose additive, wherein the nanofribril cellulose additive comprises nanofribril cellulose and a surfactant adsorbed onto a surface of the nanofribril cellulose; and introducing the treatment fluid into a well bore penetrating a subterranean formation. Additional systems, methods and compositions are also disclosed.
摘要:
Aqueous fluids containing hydrophobic particles are effective media for cleaning water-base drilling fluids and drilling fluid solids from the interior surface of a casing string. Hydrophobic fibers may be added to a drilling fluid, a spacer fluid, a sacrificial spacer fluid, a chemical wash, or combinations thereof. The disclosed fluids may be employed during primary cementing operations where it is not possible to use a bottom plug.
摘要:
Fluids containing surfactants and hydrophobic particles are effective media for cleaning non-aqueous fluids (NAFs) out of a subterranean wellbore. The fibers and surfactants are may be added to a drilling fluid, a spacer fluid, a sacrificial spacer fluid, a chemical wash, a cement slurry or combinations thereof. NAFs, such as an oil-base mud or a water-in-oil emulsion mud, are attracted to the fibers as the treatment fluid circulates in the wellbore.
摘要:
A method for treating an oil-bearing subsurface formation is disclosed that includes providing one ore more acid soluble materials into a wellbore in the oil-bearing subsurface formation. The wellbore may include a plurality of first perforations in the wellbore that have been used to form first fractures emanating from the wellbore in the formation. The acid soluble materials may be used as a diverting agent to form plugs in exisiting perforations in the wellbore. The plugs may inhibit fluid flow through the exisiting perforations. The plugs may be removed at any time desired by providing an acid into the wellbore or by incorporating a delayed source of acid in the diverting agent.
摘要:
Various embodiments disclosed relate to a silane-functionalized polyalkyleneimine (PAI) clay stabilizer for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include placing in the subterranean formation a silane-functionalized PAI clay stabilizer.
摘要:
The disclosure relates to poly alpha-1,3-glucan fibrids and methods for making them. Also disclosed uses for the fibrids, including paper-making and use as an emulsifier.