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公开(公告)号：US20230183552A1
公开(公告)日：2023-06-15
申请号：US17644370
申请日：2021-12-15
摘要： A composition includes a nonionic fluorinated polymeric surfactant, a nonfluorinated surfactant, and a scale treatment. Additionally, a method for scale treatment is provided. The method includes injecting gas into the aforementioned composition to produce a foam and injecting the foam into a formation. In the formation, the foam may be exposed to a first temperature at which it has a first viscosity. The foam may be maintained inside the formation for a period of time, and then recovered from the formation, at which point it is exposed to a second temperature and has a second viscosity.
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22.发明授权公开(公告)号：US11668162B2
公开(公告)日：2023-06-06
申请号：US16616296
申请日：2018-12-31
IPC分类号： G06F30/28 , E21B37/06 , E21B47/007 , E21B47/00 , E21B37/00 , F04B49/06 , G06F111/10
CPC分类号： E21B37/06 , E21B37/00 , E21B47/006 , E21B47/007 , F04B49/065 , G06F30/28 , E21B2200/20 , G06F2111/10
摘要： Predicting the efficiency of downhole mechanical removal of one or more accreted materials from one or more wellbore walls may prevent the unnecessary consumption of resources in a wellbore fluids displacement operation. A method and system for removing accreted materials in a wellbore is provided, wherein the efficiency of mechanical removal of accreted materials may be characterized based, at least in part, on a comparison between one or more actual shear stresses exerted by a wellbore servicing fluid at one or more depths of the wellbore and one or more required shear stresses to remove the accreted materials from the depth. The one or more required shear stresses may be determined using one or more of one or more known properties of the one or more accreted materials, one or more rheology models, one or more hydraulic parameters, one or more wellbore hydraulic models, and one or more downhole conditions. To account for one or more effects of eccentricity in the wellbore, the one or more actual shear stresses exerted by wellbore servicing fluid may be determined by partitioning one or more three dimensional flow profiles into divided annular segments for individual analysis. To improve operational decision making, operators or automated processes may modify the wellbore fluids displacement operation based, at least in part, on the comparison. The comparison between the one or more actual shear stresses and the one or more required shear stresses may be used to generate a parameter that characterizes the cleaning efficiency of the wellbore fluids displacement operation.
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公开(公告)号：US11661544B1
公开(公告)日：2023-05-30
申请号：US17544686
申请日：2021-12-07
CPC分类号： C09K8/528 , C09K8/12 , E21B37/06 , E21B2200/08
摘要： A breaker composition comprising (i) a first acid precursor, (ii) a second acid precursor and (iii) an aqueous fluid wherein the first acid precursor has an effective operating temperature of from about 15° C. to about 120° C. and the second acid precursor has an effective operating temperature of from about 30° C. to about 180° C.
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公开(公告)号：US11661543B2
公开(公告)日：2023-05-30
申请号：US17167307
申请日：2021-02-04
发明人： Lirio Quintero , Jeffrey A. Russek
摘要： Methods can include introducing a cleaning fluid into a near-wellbore zone of an injection well penetrating a subterranean formation, wherein the cleaning fluid includes: 0.5 wt % to about 5 wt % of a surfactant blend comprising an alkoxy carbonate surfactant and an internal olefin sulfonate surfactant; salt water having a total dissolved solids (TDS) of about 15,000 mg/L or greater; and 0 wt % to about 0.05 wt % of an organic acid; and dispersing a hydrocarbon from the near-wellbore zone in the cleaning fluid. Compositions for cleaning a near-wellbore zone of a subterranean formation can include 0.5 wt % to about 5 wt % of a surfactant blend comprising an alkoxy carbonate surfactant and an internal olefin sulfonate surfactant; salt water having a total dissolved solids (TDS) of about 15,000 mg/L or greater; and 0 wt % to about 0.05 wt % of an organic acid.
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公开(公告)号：US11619121B2
公开(公告)日：2023-04-04
申请号：US17373688
申请日：2021-07-12
发明人： Daniel Porodo
摘要： A method for forming a sleeve for wrapping around and insulating a joint of a downhole tubing string is provided. The method includes the steps of providing a mold, applying insulation around the mold, winding an interfacing material around the insulation; and applying a polymer onto the interfacing material to bind to the interfacing material to form the sleeve.
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公开(公告)号：US11618845B2
公开(公告)日：2023-04-04
申请号：US17290966
申请日：2019-09-27
申请人： RHODIA OPERATIONS
摘要： The present invention relates to a method of inhibiting or control wax formation during stimulation treatment of a well. More specifically, the present invention proposes the use of aqueous polymer dispersions suitable as wax inhibitor compositions which are compatible with aqueous fracturing fluids.
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公开(公告)号：US11572499B2
公开(公告)日：2023-02-07
申请号：US17099380
申请日：2020-11-16
摘要： The present disclosure relates to a gas hydrate inhibitor composition, comprising A) a compound according to formula (1) wherein R1 is an alkyl group having from 1 to 5 carbon atoms; R2 is hydrogen or an alkyl group having from 1 to 5 carbon atoms; R3 is present or not as hydrogen and organic moieties having from 1 to 20 carbon atoms; R4 is selected from —(CH2)t—, —[CH2—CHR6)t]—, —(CH2—CHR6O)u—(CH2)t— and combinations thereof; R5 is an alkyl or alkenyl group having 4 to 22 carbon atoms; R6 is hydrogen or an alkyl group having from 1 to 4 carbon atoms; R7 is hydrogen or an alkyl group having from 1 to 4 carbon atoms; R8 is present or not as hydrogen or organic moieties having from 1 to 20 carbon atoms; t is 2, 3 or 4; u is an integer between 0 and 100; n is 0 or 1 m is 0 or 2 o is 0 or 2, p is 0 or 1 X− is an anion, and a synergistic cationic surfactant which is selected from quaternary benzyl ammonium salts having besides the benzyl group at least one C8-C18-alkyl group bound to the nitrogen atom.
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公开(公告)号：US20230036144A1
公开(公告)日：2023-02-02
申请号：US17386973
申请日：2021-07-28
摘要： A method for performing a maintenance operation of a well in an oil/gas field is disclosed. The method includes identifying an extent of corrosion deposit of the well, predicting, using a descaling model of the oil/gas field and based on the extent of corrosion deposit, expected descaling metal loss in a tubular of the well, calculating, based on the expected descaling metal loss, a tubular burst/collapse pressure for a predicted thickness of the tubular, comparing the tubular burst/collapse pressure against a well operating pressure to generate a comparison result, and performing the maintenance operation of the well based on the comparison result.
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公开(公告)号：US20230009732A1
公开(公告)日：2023-01-12
申请号：US17858312
申请日：2022-07-06
发明人： Fabio De Assis Ressel Pereira , Rafael De Paula Cosmo , Andre Leibsohn Martins , Helga Elisabeth Pinheiro Schluter , Bruno Barbosa Castro
摘要： The present invention addresses to a system that aims at reproducing situations close to those found in oil wells, in relation to the thermodynamic conditions (pressure and temperature), and the fluids present (by means of the chemical species involved), aiming at representing in a more realistic way the production scenarios to be faced. The main scope is to represent on a laboratory scale the phenomenon of depressurization with the release of carbon dioxide inducing the precipitation of calcite (calcium carbonate), the growth and agglomeration of inorganic crystals, and the phenomena of adhesion and scale on common metallic surfaces of elements of completion of oil wells.
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公开(公告)号：US20230002667A1
公开(公告)日：2023-01-05
申请号：US17781215
申请日：2020-11-19
发明人： Giuseppe Sampaio de Almeida Cardoso , Francisca Ferreira do Rosario , Humberto Eustaquio Lopes , Alexandre Barbosa Melo de Carvalho , Felipe Batista Alvim , João Francisco Cajaíba da Silva , Tiago Cavalcante Freitas
摘要： The present invention proposes a combined treatment of scale removal and inhibition in reservoir rock (inhibition squeeze), by using inhibitors derived from organophosphonic acid, in acidic medium, aiming at minimizing the intervention time in well scale mitigation operations, in addition to reducing costs per treatment and the risks associated with the process.
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