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1. 发明授权

US11485893B2 Heavy fluid and method of making it 有权
公开(公告)号：US11485893B2
公开(公告)日：2022-11-01
申请号：US17077367
申请日：2020-10-22
申请人： Highland Fluid Technology, Inc.
发明人： Kevin W. Smith
IPC分类号： C09K8/06 , C09K8/84 , C09K8/86 , C09K8/12 , C09K8/88
摘要： Heavy fluids are made from calcium bromide and at least one hydrogen bond donor such as a low molecular weight polyol or an organic acid. The combination of a hydrogen bond donor and calcium bromide as a hydrogen bond acceptor in an appropriate molar ratio forms a higher density clear completion fluid at a low temperature not otherwise obtainable with heavy aqueous solutions of calcium bromide such as are used in oilfield wells. A method of making the fluid comprises mixing calcium bromide with the polyol(s) in the presence of water and then reducing the water content, thus forming a heavy fluid. A crystallization inhibitor such as nitrilotriacetamide or a particulate silicate is included in the formulation. When the heavy fluid “freezes,” its physical form is somewhat amorphous and pumpable rather than crystalline. The heavy fluid is useful as a drilling fluid as well as a completion fluid and for other purposes in oil recovery processes where extreme density is beneficial.

2. 发明申请

US20220267666A1 METHODS AND SYSTEMS FOR ADDING FUNCTIONALITY FOR CROSS LINKED POLYMERS IN A WELLBORE ENVIRONMENT 有权
公开(公告)号：US20220267666A1
公开(公告)日：2022-08-25
申请号：US17680528
申请日：2022-02-25
申请人： HIGHLAND FLUID TECHNOLOGY
发明人： Shawn Lu , Kevin Wilbur Smith
IPC分类号： C09K8/80 , C09K8/92 , C09K8/60
摘要： Forming a hydrogel in-situ downhole by pumping multiple polymers together that synergistically work together to reduce the flow of water through a proppant pack

3. 发明申请

US20200215504A1 Optimizing Drilling Mud Shearing 审中-公开
公开(公告)号：US20200215504A1
公开(公告)日：2020-07-09
申请号：US16825303
申请日：2020-03-20
申请人： Highland Fluid Technology, Inc.
发明人： Kevin W. SMITH
IPC分类号： B01F11/02 , B01F7/00 , B01F15/00 , B01F3/12 , G01N11/00 , E21B41/00 , E21B21/08 , E21B21/06 , B01F15/06 , B01F5/10
摘要： Viscosity and other properties are determined at desired temperatures in drilling mud and other fluids by using a versatile cavitation device which, operating in the cavitation mode, mixes and heats the fluid to a specified temperature, and, operating in the shear mode, acts as a spindle for application of Couette principles to determine viscosity as a function of shear stress and shear rate. The invention obviates the practice of adjusting rheology of a drilling fluid by passing it through the drill bit. Drilling fluid may be managed by a “straight-through” method to the well, or by placing the cavitation device in a loop which isolates an aliquot of known volume and circulating the fluid through the loop including the cavitation device. A controller may be programmed to manage the viscosity and other properties at various temperatures by controlling the power input and angular rotation of the “spindle” (which has cavities on its cylindrical surface), and feeding viscosity-adjusting agents and other additives to the fluid. Data may be collected from the loop and used in the “straight-through” mode until it is determined that conditions require a new set of data, or the loop may be used continuously. The system may be used with a supplemental viscometer, density meter, and other instruments.

4. 发明授权

US10258944B2 Cavitation pump 有权
公开(公告)号：US10258944B2
公开(公告)日：2019-04-16
申请号：US14715160
申请日：2015-05-18
申请人： Highland Fluid Technology, Ltd.
发明人： Kevin W. Smith , Jeff Fair
IPC分类号： B01F5/12 , B01F3/04 , B01F7/00 , B01F7/10 , B01F7/26
摘要： A cavitation device is supplied by a disc pump with fluids for mixing. A cavitation rotor, having an array of cavities on its cylindrical surface, is fixed to a shaft for rotation by a motor. The disc pump and the cavitation device are beneficially in the same housing. At least one disc is spaced from and attached to the rotor near the inlet end of the cylindrical housing, so it will rotate with the rotor. A central hole in the (at least one) disc permits fluid to enter the space between the disc and the rotor; it is flung toward the peripheral space between the rotor and the cylindrical housing, where it is subjected to cavitation, and then passed to an outlet. The shaft may pass through one or both of the end walls of the cylindrical housing. The cavitation pump is especially useful for mixing oil field fluids.

5. 发明授权

US09789452B2 Central entry dual rotor cavitation 有权
公开(公告)号：US09789452B2
公开(公告)日：2017-10-17
申请号：US14692278
申请日：2015-04-21
申请人： Highland Fluid Technology, Ltd.
发明人： Kevin Smith
IPC分类号： B01F7/00 , B01F7/10 , B01F7/26
摘要： A method is described of mixing fluid materials, including solids and gases. The materials to be mixed are introduced between two cylindrical rotors mounted in parallel on a motorized shaft. The rotors have arrays of cavities on their cylindrical surfaces and rotate within close proximity to the interior of a cylindrical shell. Passage of the fluid between the rotating rotors and the interior surface of the cylindrical shell causes cavitation, which mixes the materials. The mixture is passed to outlets on the far sides of the rotors from the inlet. Apparatus is described for extending the flow path of the materials and thus increasing exposure to the cavitation process.

6. 发明授权

US11629281B2 Methods and systems associated with lubricant for drilling fluids 有权
公开(公告)号：US11629281B2
公开(公告)日：2023-04-18
申请号：US17573997
申请日：2022-01-12
申请人： HIGHLAND FLUID TECHNOLOGY
发明人： Shawn Lu
IPC分类号： C09K8/12 , C10M149/22 , C10M143/10 , C10M105/04 , C10M161/00 , C10N20/02 , C10N30/02
摘要： A composition of a lubricant including a GTL hydrocarbon, fatty acid amine, and styrene block polymer.

7. 发明申请

US20220228049A1 METHODS AND SYSTEMS ASSOCIATED WITH LUBRICANT FOR DRILLING FLUIDS 有权
公开(公告)号：US20220228049A1
公开(公告)日：2022-07-21
申请号：US17573997
申请日：2022-01-12
申请人： HIGHLAND FLUID TECHNOLOGY
发明人： Shawn Lu
IPC分类号： C09K8/12 , C10M149/22 , C10M143/10 , C10M105/04 , C10M161/00
摘要： A composition of a lubricant including a GTL hydrocarbon, fatty acid amine, and styrene block polymer.

8. 发明授权

US11236756B2 Cavitation device 有权
公开(公告)号：US11236756B2
公开(公告)日：2022-02-01
申请号：US15221878
申请日：2016-07-28
申请人： Highland Fluid Technology, Inc.
发明人： Kevin W. Smith , Jeff Fair
IPC分类号： B01F5/12 , B01F3/04 , F04D29/40 , F04D29/02 , F04D29/18 , F04D3/02 , B01F7/00 , B01F7/10 , B01F7/26
摘要： An improved cavitation mixing and heating device employs an inlet directed toward the vertex of a conical or similar flow-directing element. The flow patterns of the fluid material to be mixed and heated are designed to preheat, spread, and create turbulent flow mixing of the fluid before it enters the cavitation zone, using heat generated in the cavitation zone that is conducted through the body of the cavitation rotor. The functions of the axially oriented inlet and flow directing element are assisted by a cantilever construction to alleviate stress on the bearings.

9. 发明申请

US20190031793A1 Hydrating and Dissolving Polymers 审中-公开
公开(公告)号：US20190031793A1
公开(公告)日：2019-01-31
申请号：US16118659
申请日：2018-08-31
申请人： Highland Fluid Technology, Ltd.
发明人： Kevin W. Smith
IPC分类号： C08F8/12 , C08F20/56 , C08L99/00 , B01F5/12 , B01F7/26
摘要： Polyacrylamides, guar gum (sometimes “guar”), xanthan gum, carboxymethylcellulose, hydroxyethylcellulose, and other water-soluble polymers are dissolved and hydrated in aqueous solutions, including especially recycled drilling, fracturing, and other oilfield fluids having significant salt contents, by passing the water-soluble polymer together with the aqueous medium to a cavitation device including an integrated disc pump. The integration of a disc pump with the cavitation device reduces the risk of gumming by applying a negative pressure at the feed point. The ability to use water-soluble polymers with the salty recycled oilfield fluids has significant environmental benefits, namely (1) fresh water is not needed, (2) disposal of the environmentally undesirable returned fluids is not needed, (3) difficultly degradable synthetic polymers may not be needed, and, in particular, (4) the enhanced ability to use guar, which, being a natural product, is biodegradable, is environmentally favored. Although the invention is most beneficial for use with salt or brackish water, its high efficiency points to beneficial use where fresh water is the only available choice for the aqueous medium. Where dry polymer is used, the invention's benefits are especially realized in terms of logistics and handling, since viscous and bulky solutions need not be prepared and stored in advance, thus also minimizing health, safety and environmental risks

10. 发明申请

US20160339400A1 Cavitation Device 审中-公开
标题翻译：气蚀装置
公开(公告)号：US20160339400A1
公开(公告)日：2016-11-24
申请号：US15221878
申请日：2016-07-28
申请人： Highland Fluid Technology, Ltd.
发明人： Kevin W. Smith , Jeff Fair
IPC分类号： B01F5/12 , B01F3/04 , F04D29/40 , F04D29/02 , F04D3/02 , F04D29/18
CPC分类号： F04D29/026 , B01F7/00491 , B01F7/00641 , B01F7/00816 , B01F7/10 , B01F7/26 , F04D3/02 , F04D29/18 , F04D29/406
摘要： An improved cavitation mixing and heating device employs an inlet directed toward the vertex of a conical or similar flow-directing element. The flow patterns of the fluid material to be mixed and heated are designed to preheat, spread, and create turbulent flow mixing of the fluid before it enters the cavitation zone, using heat generated in the cavitation zone that is conducted through the body of the cavitation rotor. The functions of the axially oriented inlet and flow directing element are assisted by a cantilever construction to alleviate stress on the bearings.
摘要翻译：改进的空化混合和加热装置使用朝向锥形或类似导流元件的顶点的入口。要混合和加热的流体材料的流动模式被设计成在流体进入空化区之前预热，扩散和产生湍流混合，使用在气蚀区域中产生的热量，其通过空化体转子。轴向定向的入口和流动导向元件的功能由悬臂结构辅助以减轻轴承上的应力。

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