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公开(公告)号：US11104838B2
公开(公告)日：2021-08-31
申请号：US15978922
申请日：2018-05-14
发明人： Mohammed Abudullah Bataweel , Jin Huang , Ayman Mohammed Almohsin , Prasad Baburao Karadkar , Hans Olof Lagnemo , Andreas Ake Sundblom , Per Anders Restorp
IPC分类号： C09K8/44 , E21B33/138 , C09K8/42 , C09K8/68 , C09K8/86 , C09K8/506 , C04B28/24 , C09K8/467 , C04B14/06 , C04B40/00
摘要： A composition useful for subterranean water or gas shut off applications includes organosilane-modified colloidal silica and an accelerator. The accelerator includes one or more organic or inorganic salts. A method of using a composition, including an organosilane-modified colloidal silica and an accelerator, includes forming a fluid system that is flowed to a formation in a subterranean zone, such as through a wellbore, where the composition forms a gel to plug the formation and shut off water flow into the wellbore.
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公开(公告)号：US20210130555A1
公开(公告)日：2021-05-06
申请号：US16674638
申请日：2019-11-05
摘要： An aqueous dispersion includes polyacrylamide, a crosslinker, and a filler. The crosslinker includes at least one of hydroquinone or hexamethylenetetramine. The filler includes at least one of a metal oxide or a nanomaterial. The metal oxide includes at least one of zirconium oxide, zirconium hydroxide, or titanium oxide. The nanomaterial includes at least one of graphene, graphene oxide, or boron nitride. In some cases, the filler is a nanocomposite of the metal oxide and the nanomaterial.
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公开(公告)号：US10920063B2
公开(公告)日：2021-02-16
申请号：US16898732
申请日：2020-06-11
摘要： A nanocomposite including a metal oxide and two-dimensional nanosheets. The metal oxide includes at least one of zirconia and titania, and the two-dimensional nanosheets include at least one of reduced graphene oxide and boron nitride. A weight ratio of the metal oxide to the two-dimensional nanosheets is in a range of 2:1 to 19:1, or in a range or 2:1 to 9:1. Making the nanocomposite includes forming a first aqueous dispersion including zirconia nanoparticles and graphene oxide powder, combining a reducing agent with the first aqueous dispersion, irradiating the first aqueous dispersion with microwave radiation, thereby yielding a second aqueous dispersion including zirconia and graphene, and separating the nanocomposite from the second aqueous dispersion, wherein the nanocomposite comprises zirconia and graphene.
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公开(公告)号：US10683726B1
公开(公告)日：2020-06-16
申请号：US16397409
申请日：2019-04-29
IPC分类号： E21B33/138 , C09K8/508 , C09K8/504 , E21B43/08
摘要： A system and method for isolating a zone in a wellbore having a sand screen including applying hydrogel into an annulus between the sand screen and the geological formation to form a hydrogel packer in the annulus.
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公开(公告)号：US20190309212A1
公开(公告)日：2019-10-10
申请号：US16450160
申请日：2019-06-24
发明人： Rajendra Arunkumar Kalgaonkar , Vikrant Bhavanishankar Wagle , Abdullah Saleh Hussain Al-Yami , Ayman Mohammed Almohsin
摘要： A lost-circulation material including a mixture of an aqueous colloidal dispersion and fatty acid. The aqueous colloidal dispersion includes silica nanoparticles and has a pH of at least 8. Combining the colloidal dispersion and the fatty acid initiates gelation of the lost-circulation material when the pH of the lost-circulation material is less than 8 and a temperature of the lost-circulation material is in a range of 5° C. to 300° C. Sealing an opening in a portion of a wellbore or a portion of a subterranean formation in which the wellbore is formed may include providing the aqueous colloidal dispersion and the fatty acid to the wellbore, mixing the colloidal dispersion and the fatty acid to yield the lost-circulation material, initiating gelation of the lost-circulation material, and solidifying the lost-circulation material in the wellbore to yield a set gel.
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