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Li Zhongyong With nine years of frontline experience in geological exploration, this expert joined the company in 2010, dedicating efforts to business development and innovation. Leveraging professional skills, he successfully led the team to integrate online and offline sales channels, significantly enhancing the company's market presence. Renowned for numerous patented innovations, he possesses unique insights and qualifications, especially in water well drilling and geological exploration.

Bionic Inlay Diamond Drill Bit: Matrix Welding & Fixing Device

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Invention Announcement] A bionic inlay diamond drill bit matrix welding and fixing device Application Publication Number:CN115430990AApplication Publication Date:2022.12.06Application Number:2022111990989Application Date:2022.09.29Applicant:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li Zhongyong; Chen QiaohongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421000Classification Number:B23K37/053(2006.01)I; Abstract:This invention provides a bionic inlay diamond...
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Spraying Device for Drilling Tool Component Processing

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Utility Model] Spraying device for processing drilling tool components Authorization Announcement Number:CN214811983UAuthorization Announcement Date:2021.11.23Application Number:2021216958410Application Date:2021.07.26Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600Classification Number:B05B13/02(2006.01)I Abstract:The utility model relates to the field of drilling technology and discloses a...
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Core Drill Bit Grinding Device & Method Announced

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Invention Announcement] A grinding device and method for a core drill bit Application Publication Number:CN115488701AApplication Publication Date:2022.12.20Application Number:2022111766625Application Date:2022.09.26Applicant:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li Zhongyong; Chen QiaohongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600Classification Number:B24B3/24(2006.01)I; Abstract:This invention provides a grinding device and method...
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High-Efficiency Inspection Device for Drill Bit Production

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Utility Model] High-efficiency inspection device for drill bit production Authorization Announcement Number:CN216205895UAuthorization Announcement Date:2022.04.05Application Number:2021219046680Application Date:2021.08.16Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600Classification Number:G01B5/08(2006.01)I  Abstract:This utility model relates to the technical field of drill bit production equipment...
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Material Melting Device for Drill Bit Production

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Utility Model] Material melting device for drill bit production Authorization Announcement Number:CN215615061UAuthorization Announcement Date:2022.01.25Application Number:2021219046888Application Date:2021.08.16Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600Classification Number:B22D45/00(2006.01)I  Abstract:This utility model pertains to the field of drill bit production technology and...
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Quality Inspection Device for Drill Bit Production

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Utility Model] Quality inspection device for drill bit production Authorization Announcement Number:CN215572737UAuthorization Announcement Date:2022.01.18Application Number:2021220542681Application Date:2021.08.30Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600 Classification Number:G01B11/08(2006.01)I  Abstract:This utility model relates to the technical field of drill bit inspection...
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[Design Patent] Drill Bit (75 Straight)

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Design Patent] Drill Bit (75 Straight) Authorization Announcement Number:CN307668046SAuthorization Announcement Date:2022.11.18Application Number:2022304266160Application Date:2022.07.07Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Designers:Li Xiaohuan; Li Zhongyong; Chen PengAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421000Classification Number:08-01 (13)  Brief Description: The name of the design product: Drill Bit (75 Straight). 2. The...
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[Design Patent] Drill Bit (92 Spiral)

Li Xiaohuan Li Zhongyong Patents and innovation

[Design Patent] Drill Bit (92 Spiral) Authorization Announcement Number:CN307668047SAuthorization Announcement Date:2022.11.18Application Number:2022304266264Application Date:2022.07.07Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Designers:Li Xiaohuan; Li Zhongyong;Chen PengAddress:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421000Classification Number:08-01 (13) Brief Description: The name of the design product: Drill Bit (92 Spiral). 2. The intended...
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Diamond Composite Core-Drilling Bit for Easy Advancement

Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao

[Utility Model] Diamond composite sheet core-drilling bit for easy advancement Authorization Announcement Number:CN207728312UAuthorization Announcement Date:2018.08.14Application Number:2017215725898Application Date:2017.11.22Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventor:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 178, Nanshan Road, Hongqiao Town, Qidong County, Hengyang City, Hunan Province 421600Classification Number:E21B10/48(2006.01)I Abstract:The utility model discloses a diamond composite sheet core-drilling bit for easy advancement, including a...
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PDC Drill Bits: Applications and Case Studies

Drilling Technology Li Zhongyong

Table of Contents Differences Between Fixed Cutter and Shear-Type PDC Bits Hybrid PDC Bits: Applications and Benefits Specialty PDC Drill Bits for Geothermal and Water Well Drilling The Best Choice for Hard Rock Drilling Differences Between Fixed Cutter and Shear-Type PDC Bits Fixed cutter and shear-type PDC (Polycrystalline Diamond Compact) bits are essential tools...
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