-
公开(公告)号：US20210404288A1
公开(公告)日：2021-12-30
申请号：US16913610
申请日：2020-06-26
IPC分类号： E21B33/138 , C09K8/44 , C09K8/34 , C04B26/06 , C04B24/32 , E21B21/08 , E21B25/08 , E21B49/00
摘要： A method of coring to preserve subterranean soluble salt cements gives careful consideration to the selection and use of drilling fluids, specific logging of the zone of interest, displacing the near wellbore with an agent that when cured has either bound all subterranean water or cemented up all the available pore space, coring of the target formation zone containing the cured agent and retrieval of pressurized core material that allows CT scanning.
-
公开(公告)号：US11186785B2
公开(公告)日：2021-11-30
申请号：US16928900
申请日：2020-07-14
发明人： Ramin Abhari , E. Gary Roth , Peter Z. Havlik , H. Lynn Tomlinson
IPC分类号： C10G50/00 , C10G3/00 , C09K21/08 , C09K8/34 , C09K8/64 , E21B43/26 , C09K8/32 , C10G49/00 , C10M105/52 , C11D7/24 , A01N25/02 , C10G49/02 , C10G50/02 , C10M105/04 , C10N40/20
摘要： A method is provided involving altering the viscosity of bio-derived paraffins to produce a paraffinic fluid, where the altering step includes chlorinating the bio-derived paraffins; the bio-derived paraffins include a hydrodeoxygenated product produced by hydrodeoxygenating a bio-based feed where the bio-based feed includes bio-derived fatty acids, fatty acid esters, or a combination thereof; the bio-derived paraffins include n-paraffins; and the n-paraffins have a biodegradability of at least 40% after about 23 days of exposure to microorganisms. Also provided are methods of protecting and/or cleaning a substance by applying the paraffinic fluid.
-
公开(公告)号：US20210261847A1
公开(公告)日：2021-08-26
申请号：US16800567
申请日：2020-02-25
发明人： Md Amanullah , Turki Al-Subaie
摘要： A lost circulation material (LCM) that includes chips formed from date palm seeds. The date palm seed-based chip LCM includes chips having lengths in the range of greater than 2.38 millimeters (mm) to less than 6.73 mm. Method of manufacturing the date palm seed-based chip LCM include washing and drying whole date tree seeds, such that the drying includes air-drying, hot rolling, and cooling. Methods of reducing lost circulation are also provided.
-
公开(公告)号：US11098239B2
公开(公告)日：2021-08-24
申请号：US16692396
申请日：2019-11-22
摘要： Systems and methods for enhanced or improved oil recovery includes injecting a Y-Grade NGL enhanced oil recovery fluid through an injection well into a hydrocarbon bearing reservoir to mobilize and displace hydrocarbons. The Y-Grade NGL enhanced oil recovery fluid comprises an unfractionated hydrocarbon mixture. Simultaneously and/or subsequently, a mobility control fluid is injected into the hydrocarbon bearing formation. Hydrocarbons from the hydrocarbon bearing reservoir are produced through a production well or the same injection well.
-
公开(公告)号：US10927285B2
公开(公告)日：2021-02-23
申请号：US16868245
申请日：2020-05-06
发明人： Md Amanullah
摘要： Alkyl ester spotting fluid compositions and processes for freeing differentially stuck pipe are provided. An alkyl ester spotting fluid composition includes an invert emulsion having an alkyl ester as the external phase and water as the internal phase. In some embodiments, the alkyl ester spotting fluid composition may include the alkyl ester invert emulsion and an emulsifier. The alkyl ester spotting fluid composition may be introduced downhole in the vicinity of a portion of a differentially stuck pipe such that the spotting fluid composition contacts the mudcake and frees the differentially stuck pipe.
-
公开(公告)号：US10920122B2
公开(公告)日：2021-02-16
申请号：US16881873
申请日：2020-05-22
发明人： Hui Zhou , Jay Paul Deville
摘要： The present invention relates to drilling fluid compositions and methods of using the same. In various embodiments, the present invention provides a method of treating a subterranean formation including obtaining or providing a drilling fluid composition including a viscosifier including at least one of a poly(vinyl alcohol) copolymer, a crosslinked poly(vinyl alcohol), and a crosslinked poly(vinyl alcohol) copolymer. The method also includes placing the composition in a subterranean formation.
-
公开(公告)号：US10758884B2
公开(公告)日：2020-09-01
申请号：US16098417
申请日：2017-05-03
申请人： nFluids Inc.
发明人： Maen Husein , Alexey Borisov
摘要： A method for preparing concentrated and stable nanoparticle organosols using phase transfer is disclosed. The method includes transferring nanoparticles from a hydrosol into a hydrocarbon carrier with the aid of a transfer agent. The transfer agent can be added before, during or after the reaction of nanoparticle preparation and can be added to the aqueous or the organic carrier. The nanoparticles may be prepared in situ, pre-prepared in-house or commercially available. At the optimum values of the different parameters; namely precursor concentrations, amount of transfer agent and concentration of nanoparticles in the organosol, complete transfer of the nanoparticles may be achieved. The approach employs room temperature, moderate mixing and minimum number and quantity of chemicals relative to prior art. The nanoparticles may be used in fluids used in oil and gas recovery including drilling, completion, and stimulation fluids.
-
公开(公告)号：US20200255717A1
公开(公告)日：2020-08-13
申请号：US16864230
申请日：2020-05-01
发明人： Musarrat Halima Mohammed , Andrew Whiting , Hugh Christopher Greenwell , Mona Al Batal , John Adrian Hall , Gasan Selman Alabedi , Michael Hayward Hodder
摘要： Oil-based drilling fluid compositions comprising an oil phase comprising a base oil, an aqueous phase comprising water, at least one emulsifier, and one or more additives. The at least one emulsifier comprises an amino amide comprising the formula R—CO—NH—R′—NH2, where R is a fatty acid alkyl and R′ is an alkyl group. The one or more additives are chosen from a wetting agent, a rheology modifier, a fluid-loss control additive, and a weighting additive. Methods of making the oil-based drilling fluid compositions and methods of drilling a subterranean well utilizing the oil-based drilling fluid compositions are also provided.
-
89.发明授权公开(公告)号：US10723930B2
公开(公告)日：2020-07-28
申请号：US15752351
申请日：2016-08-08
发明人： Ronald R. Hill, Jr. , Syd R. Wright , Yang Yang
IPC分类号： C09K8/035 , A01N25/02 , A01N25/04 , A01N25/10 , A01N27/00 , A01N25/30 , C09K8/32 , C09K8/34 , C09K8/88
摘要： Viscoelastic fluid compositions are provided that have improved properties for suspending particulate active ingredients. Methods for forming the compositions are also provided. The compositions preferably have a non-Newtonian behavior, so that the viscosity of the composition at low shear rates is suitable for keeping solid particles in the form of a stable suspension while also providing a reduced viscosity at higher shear rates (such as a substantially reduced or minimized viscosity) to allow for pumping, tank mixing, and/or distribution of the composition, for instance by spraying.
-
公开(公告)号：US10723929B2
公开(公告)日：2020-07-28
申请号：US15061175
申请日：2016-03-04
申请人： CNPC USA CORPORATION
发明人： Chun Zhou , Jiancheng Li , Burhan Hoxha , Stephanie Yu
摘要： A thinner that is a poly fatty amide reacted with maleic acid to form a product, and diluting the product with a compound selected from the group consisting of oleyl alcohol, fatty acid, and poly condensed fatty acid is able to reduce the viscosity of oil-based drilling fluid, thus allowing for reuse of the oil-based drilling fluid.
-
-
-
-
-
-
-
-
-
搜索结果
377 条记录 (耗时 0.019 秒)
