COMPOSITIONS FOR STIMULATION OPERATIONS
    3.
    发明公开

    公开(公告)号:US20240240074A1

    公开(公告)日:2024-07-18

    申请号:US18155430

    申请日:2023-01-17

    摘要: Compositions for stimulating a subterranean formation may include 10 wt % to 25 wt % of an oleaginous liquid; 5 wt % to 50 wt % of a fatty alkyl alcohol ethoxylate; 15 wt % to 75 wt % of at least one of a fatty alkyl ethoxylated ammonium salt, a zwitterionic surfactant, an alkyl ether sulfate salt or an alkyl ether sulfonate salt; and 5 wt % to 40 wt % of a co-solvent, each wt % being based on a total mass of the composition, excluding aqueous fluids. The compositions may be combined with an aqueous fluid, optionally to form foams or emulsions.

    Compositions for enhanced oil recovery

    公开(公告)号:US11203709B2

    公开(公告)日:2021-12-21

    申请号:US15633031

    申请日:2017-06-26

    摘要: Disclosed herein are compositions and methods for increasing recovery, or flowback, of hydrocarbon compounds from hydrocarbon-containing subterranean fractured rock formations (tight shale reservoirs). The flowback compositions include an anionic dimer surfactant, an anionic monomer surfactant, and a demulsifier. The flowback compositions convert oil-wet rocks to water-wet, yet exhibit a low tendency of composition components to sorb to the rock. The flowback compositions do not cause formation of emulsions with hydrocarbon compounds within the subterranean fractured rock formations. The flowback composition are useful for increasing the yield of hydrocarbons recovered from tight shale reservoirs.