Abstract:
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.
Abstract:
Methods for treating bodies of water with encapsulated corrosive fluids are described. Corrosive fluids may include, for example, hydrochloric acid or other acids used in treating the bodies of water. The encapsulated corrosive fluids may also be used in for treatments in oil and/or gas wells.
Abstract:
A hydraulic fracturing fluid for use in oilfield applications is disclosed. The hydraulic fracturing fluid includes a spherical bead-forming liquid composition, the spherical bead- forming liquid composition comprising a micellar forming surfactant, a bead-forming compound, a non-solids bearing liquid solvent, a pH control agent, and a curing agent.
Abstract:
Methods for treatment fluids that include an acid source, a self-degradable particulate material, and a propping agent for use in subterranean treatments are provided. In one embodiment, the methods comprise providing a treatment fluid comprising a base fluid; an acid source; a self-degradable particulate material; and a propping agent; introducing the treatment fluid into a wellbore penetrating at least a first portion of a subterranean formation at or above a pressure sufficient to create or enhance one or more fractures in the subterranean formation; and allowing the self-degradable particulate material to divert at least a portion of the treatment fluid into a second portion of the subterranean formation.
Abstract:
Systems and methods for creating and/or using multi-functional surfactant complexes that may enhance surfactant treatments in subterranean formations are provided. In some embodiments, the methods comprise: providing a treatment fluid comprising an aqueous base fluid and one or more multi-functional surfactant complexes that comprise at least one surfactant and at least one polymeric additive, wherein the surfactant and the polymeric additive carry opposite charges; and introducing the treatment fluid into a well bore at a well site penetrating at least a portion of a subterranean formation.
Abstract:
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.
Abstract:
A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li + , Na + , K + , Rb + , Cs + , Be2 + , Mg2 + , Ca2 + , Sr2 + , Ba2 + , and mixtures thereof; methods of making and using the composition; and systems including the composition.
Abstract:
A method of fracturing a subterranean formation penetrated by a well comprises: forming a fracturing composition comprising a carrier fluid; and a superabsorbent polymer component comprising one or more of the following: a first composite of a proppant and a first superabsorbent polymer in an unhydrated form, the first superabsorbent polymer being at least partially embedded in a void area of the proppant; a coated superabsorbent polymer; a superabsorbent material having a three-dimensional network; or a second composite of a second superabsorbent polymer and a slow-release breaker; and pumping the hydraulic fracturing composition into the subterranean formation to create or enlarge a fracture.
Abstract:
A method of drilling a wellbore in a subterranean formation comprises circulating a water-based or oil-based drilling fluid in the subterranean formation; the water-based or oilbased drilling fluid comprising a carrier, and a superabsorbent polymer present in an amount effective to reduce fluid leakoff during the drilling operation, the superabsorbent polymer comprising crosslinks formed before the superabsorbent polymer is combined with the carrier.
Abstract:
Заявленное изобретение относится к скважинным системам для добычи различных текучих сред, в частности для добычи текучей среды из углеводородо-содержащего пласта с использованием гидроразрыва. В соответствии с предложенным способом гидроразрыва пласта, пересекаемого стволом скважины, обеспечивают ствол скважины; осуществляют этап закачивания в ствол скважины текучей среды гидроразрыва, не содержащей расклинивающий агент с образованием трещины в пласте. Затем осуществляют этап закачивания в скважину текучей среды гидроразрыва, содержащей смесь мелкодисперсных частиц и усаживаемых полимерных волокон и обеспечивают механизм инициации, побуждающий усаживаемые полимерные волокна к усаживанию и обеспечивают обратный ток текучей среды гидроразрыва пласта и очистку трещины. Предложенный способ позволяет снизить воздействие обратного потока текучей среды гидроразрыва с расклинивающим агентом на стержни расклинивающего агента, а также обеспечить поддержание расклинивающего агента в консолидированном состоянии внутри агломератов, стержней, закупорок и предотвратить сплющивание стержней расклинивающего агента при смыкании трещины.