Abstract: The present invention relates to a method for removing organic deposits from oil and gas wells and other subsystem systems comprising cumene and biodiesel. The invention also relates to a method for removing organic deposits, including the steps for pumping said remover composition through a riser and/or through peripheral pipes of the umbilical and/or production pipe, leaving the composition in contact with the deposit for a sufficient time for removal of at least 50% of such.

Abstract: The present invention relates to the design of a nozzle valve (GL) for gas lifting that can be used in place of conventional orifice valves (VO). The gas lift nozzle valve (GL) according to the present invention has a body (1) with admission orifices (2), and, immediately below these, a slight recess (3) in the internal diameter of the body where a convergent nozzle (4) is fitted to regulate the gas flow passing through the inside of the nozzle valve (GL) towards the outlet (5) of the latter.

Abstract: The present invention relates to a process for obtaining fuel from biomass which comprises the introduction of the catalyst (3) in the base of an cracking section (4), wherein said catalyst (3) at high temperature comes in contact with a gas stream of light hydrocarbons rich in hydrogen (1), wherein the catalyst (3) and hydrocarbon (1) then come in contact with a lignocellulosic liquid stream (2) in the same cracking section (4), creating the reaction mixture (5) that, soon after, comes into contact with the main stream containing the traditional fossil load of a FCC (6) in a second cracking section (7).

Abstract: The present invention is related to a gravitation anchor for offshore anchoring of ships and platforms, comprising a main body (10) with a longitudinal axis of revolution (11), comprising a means of stabilization (14), whereby the means of stabilization (14) comprises a means of automatic activation (140). Optionally, the means of stabilization comprises at least one stabilizer (14), whereby each stabilizer (14) comprises an end pivotally attached (141) to the gravitation anchor (1), and a free end, whereby when the stabilizer (14) is in a retracted position, the free end is positioned closer to the main body (10) of the gravitation anchor (1), and whereby when the stabilizer (14) is in an extended position, the free end is positioned away from the main body (10) of the gravitation anchor (1).

Abstract: The present invention is for sealing gaskets applicable to pipes, valves and boiler equipment. In this context, the present invention provides a sealing gasket for piping systems comprising (i) a core (10) formed by a plurality of concentric metal rings (10a), each ring (10a) comprising a substantially rectangular cross-section, wherein the height of the rectangular cross-section is the same for all the rings (10a), and (ii) surface coating (12) of flexible material applied to the upper and lower surfaces of the core (10). The present invention also provides the manufacturing process of said sealing gasket. Thus, the present invention provides a sealing gasket (i) that eliminates the need for an external rigid ring, (ii) that is easy to conform for reduced-diameter sealing gaskets and (iii) can be easily formed into different shapes, such as an oval shape, which is particularly useful for sealing between the body and the gate valve bonnet.

Abstract: This invention offers a method to install a wear-resistant polymeric sleeve in a pipe bend stiffener with a metal inner wall, including the following steps: calculate thickness of the internal wall of the stiffener that can removed; remove the thickness of at least a portion of the calculated inner wall; and apply a polymeric material sleeve in the inner wall of the stiffener, where the polymeric material sleeve has the thickness of the inner wall removed.

Abstract: This invention is for a centrifugal separator comprised of a group formed by: a central feed chamber (10) fed by a feed pipe (20); a separation chamber (30) including a number of frustoconical disks (3); a first recovery chamber (11) in communication with a first liquid phase recovery pipe (21) and a gaseous phase recovery pipe (23); and a second recovery chamber (12) communicating with a second liquid phase recovery pipe (22), where the group is encompassed by a rotating envelope (1), where the central feed chamber (10) is in liquid fluid communication with the separation chamber (30), and in gaseous fluid communication with the first recovery chamber (11), where the separation chamber (30) is in fluid communication with the first and second recovery chambers where the centrifugal separator is encompassed by pressurizable stationary casing (4a, 4b).

Abstract: The present invention describes a photochemical hydrogenation process for heavy fractions of hydrocarbon streams where the aromatic and polyaromatic compounds present in that fraction selectively react in the presence of an alkoxide, when subjected to electromagnetic irradiation.

Abstract: The present invention relates to a robotic inspection device (10) comprising at least one pair of robotic modules (1) connected together by means of an articulated joint (9), with at least one displacement device (2) coupled to a rail (11); the displacement device (2) comprising at least one pair of pivoted brackets (3); at least one of the robotic modules (1) comprising at least one within an instrumentation system (7) and a manipulator arm (8).

Abstract: This invention relates to a method of correcting eccentricity of ultrasonic image profiles, measured along a section of rock, including the steps of measuring emitted amplitude values (A0) and measuring transit time values (t?) of ultrasonic acoustic pulses emitted at a range of default angles (?), where the amplitude measured at each angle (A?) is determined by an amplitude decay model in relation to the transit time (t?) defined by A ?=A?·et?/?·I?, where ? is the decay correction factor; and I? is the reflection coefficient of the rock wall.

Abstract: This invention describes the development of technology for the preparation of superparamagnetic lipophilic nanofluids, as well as of drilling fluid additives based on the aforementioned nanofluids, which improve the properties which form walls or mud filter cakes and concomitantly act as contrast agents in RMN logging.

Abstract: This invention is aimed at making viable a catalyst and the process for obtaining it that besides having a higher resistance to the deposition of coke on the catalyst surface, does not introduce limitations to the process variables, maintains acceptable levels of activity throughout the steam reforming process and has a lower cost of production. The aforementioned objective is achieved by means of a catalyst formed by an inorganic oxide support, a mixture of Nickel, Lanthanum and Cerium and a promoter element.

Abstract: The present invention is related to production schedules in a refinery and, more particularly, refinery production schedules by genetic programming in domain specific language. In this scenario, the present invention provides a method and an optimization system based on linear genetic programming oriented to grammar and with quantic inspiration using a domain specific language for the solution of oil programming problems, in addition to a readable medium comprising instructions to perform this said method. More specifically, the quantic chromosome keeps the superposition of states of all possible solutions and, through the evolutionary process and observation of quantic genes, the classical chromosome is created as a linear sequence of instructions to be performed. The performed instructions represent the scheduling.

Abstract: The present invention relates to a system to transport petroleum fluids using a riser, capable of operating with aggressive fluids, in regions of irregular sub-sea terrain, yet using low-complexity and low-cost components and connections. The hybrid reverse transfer system, comprises: a first, top, rigid riser section, a second, bottom, flexible riser section, connected to a bottom end of the rigid riser section, and a series of support buoys connected to the rigid riser section, wherein the lower end of the bottom, flexible, riser section connects to a bottom connector on the seabed.

Abstract: The invention described herein proposes steam reforming processes in two stages, the first stage being passing a synthesis gas stream through a first catalyst bed comprising an alkali metal and/or iron titanate based catalyst, and a second stage comprising at least a second catalyst bed containing a refractory supported metal catalyst, preferably having NiO as the metal phase supported with barium hexa-aluminate.

Abstract: The present invention is a system for the extraction and quantification of tetraprotic naphthenic acids present in oils, precursors of the formation of calcium naphthenates, which are potential formers of deposits, causing of damage to pieces of equipment used in the oil production industry.

Abstract: Polymeric blends of polystyrene (PS) and polylactic acid (PLA) are described, in the preparation of which a compatibilizing agent was added, preferably a PS-PLA block copolymer. Such compatibilizing agents act controlling phase separation of the blending compounds, and preventing excessive growth of polystyrene domains scattered in the PLA matrix; and this results in blends with good mechanical and thermal resistance.

Abstract: The present invention lies in the fields of chemistry and nanotechnology and describes a nanocomposite to be used in the recovery of several compounds from inorganic or organic medium. Specifically, the invention presents a nanocomposite consisting of magnetic nanoparticles composed of Fe3O4 associated to an activated charcoal adsorbent substrate, a process to obtain and methods of use of the nanocomposite. The present invention enables the processing, concentration and recovery of large volumes of contaminated water, regenerating magnetic adsorbent material for reuse, in a cyclic and sustainable manner, transforming dispersed/diluted pollutants in pre-concentrates that can be easily processed, helping to conserve natural resources.

Abstract: The present invention relates to a method for the production of ethene, CO, and hydrogen in a reactor with a circulating fluidized bed with two independent sections, from feedstocks that contain hydrocarbons with at least 11 carbon atoms or from feedstocks with a high oxygen content, using a catalyst in particulate form. The method teaches that in one of the sections of the reactor, in the absence of oxygen, a catalyst containing a dehydrogenation metal promotes the cracking of the said feedstocks, facilitating the subsequent endothermic reactions. In the other section, the coke is burned with air and the heating of the catalyst is controlled, for the adjustment of the appropriate amount of energy that the heated catalyst will convey to the section in which the endothermic reactions take place. The total ethene yield of the process according to the present invention is approximately 20% by weight in relation to the feedstock.

Abstract: A two-step 2.5 FDCA integrated production process is described, comprising a first step for generating 5-HMF from streams comprising an aqueous carbohydrate solution wherein sub-critical water works as a catalyst by dehydrating the carbohydrates and generating 5-HMF, and a second step wherein 5-HMF is oxidized into 2.5 FDCA.