Aqueous gellable composition and pipeline pigs obtained therefrom

    公开(公告)号:US12116527B2

    公开(公告)日:2024-10-15

    申请号:US18069808

    申请日:2022-12-21

    CPC classification number: C09K8/52

    Abstract: The present disclosure is directed to an aqueous gellable composition that includes water; 10 to 45 composition wt. % of a crosslinkable water-soluble polymer including at least one functional group selected from the group of carboxylic acid and carboxylic acid derivative; 1 to 10 composition wt. % of an organic or inorganic crosslinking agent for the crosslinkable water-soluble polymer; 10 to 40 composition wt. % of a polyurethane polymer; and 0.1 to 5 composition wt. % of a natural polymer. The organic crosslinking agent includes at least one compound from the group of: polyalkyleneimines, polyalkylene polyamines, phenolic compounds combined with formaldehyde, and hydroquinone combined with hexamethylenetetramine. Also, the inorganic crosslinking agent includes at least one metal compound M, wherein M is from the group of: aluminum(III), chromium(III), iron(III), zirconium(III), and any mixture thereof.

    Acidizing compositions for improved fluid performance

    公开(公告)号:US11787999B2

    公开(公告)日:2023-10-17

    申请号:US16727340

    申请日:2019-12-26

    CPC classification number: C09K8/725

    Abstract: A method of stimulating a subterranean carbonate formation includes delivering a composition comprising a hydrophobically modified polymer, a phosphorylated alkyl amino polycarboxylic acid, and a base treatment acid into the subterranean formation; and contacting the subterranean carbonate formation with the composition to form conductive flowpaths in the subterranean carbonate formation. The method may further include producing hydrocarbons from the subterranean carbonate formation. A composition for stimulating a subterranean formation includes a hydrophobically modified polymer; a phosphorylated alkyl amino polycarboxylic acid; and a base treatment acid.

    Multi-Functional Diverter Particulates

    公开(公告)号:US20210363414A1

    公开(公告)日:2021-11-25

    申请号:US17084439

    申请日:2018-09-12

    Abstract: Methods and compositions for treating a well. A method comprising: introducing a treatment fluid into a wellbore penetrating a subterranean formation wherein the treatment fluid comprises: a base fluid; and multi-functional diverter particulates, wherein the multi-functional diverter particulates comprise a polyvinyl alcohol and a well service additive; and diverting at least a portion of the treatment fluid and/or a subsequently introduced fluid away from the zone. A treatment fluid comprising: a base fluid; and a multi-functional diverter particulate, wherein the multi-functional diverter particulates comprise a polyvinyl alcohol and a well service additive.

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