Tag Archives: drilling

Hole drilling technology for cohesionless prestressed concrete roof board

Application Number  00129321 Application Date  2000.11.17 Publication Number  1290798 Publication Date  2001.04.11 Priority Information     International Classification  E04G23/02   Applicant(s) Name  Hu Wei   Address     Inventor(s) Name  Hu Wei;Hong Xiang;Wang Fushuang   Patent Agency Code  37100 Patent Agent  wu wei AbstractThe hole drilling includes the process of digging concrete floor board in… Read More »

Printed circuit board forming and hole drilling process

Application Number: 00121225Application Date: 2000.08.07Publication Number: 1337845Publication Date: 2002.02.27Priority Information: International: H05K3/46Applicant(s) Name: Lianxing Science &. Technology Co., Ltd.Address: Inventor(s) Name: Dong WenshanPatent Agency Code: 11127Patent Agent: liu lingdiAbstract The invention relates to forming of printed circuit board and manufacturing the target bore process. The invention includes following process. The target bore is recognized and… Read More »

Calcium chloride drilling liquor

Application Number: 00123780Application Date: 2000.09.06Publication Number: 1341691Publication Date: 2002.03.27Priority Information: International: C09K7/02Applicant(s) Name: Lu JiajuAddress: Inventor(s) Name: Lu Jiaju;Liang Yanli;Fang WeiPatent Agency Code: 11241Patent Agent: xia yanbengAbstract The calcium chloride drilling fluid for petroleum drilling engineering mainly is formed from high-speed stirred hydrated base slurry, calcium chloride, fluid loss control agent, viscosifying agent, lubricant and… Read More »

Process for reclaiming wastes in situ of drilling well on land

Application Number: 00110635Application Date: 2000.07.05Publication Number: 1280957Publication Date: 2001.01.24Priority Information: International: B09B3/00;C02F1/40;C02F11/12Applicant(s) Name: Zhang FuyanAddress: Inventor(s) Name: Zhang FuyanPatent Agency Code: 21106Patent Agent: wu shihuaAbstract A process for in-situ reclaiming three wastes of drilling well on land includes such steps as collecting the sawage, drilling liquid and rock debris into separator, slurry recovery tank, cement… Read More »

Solidification process for treating waste water-base drilling liquid and its solidifying agent

Application Number: 00124329Application Date: 2000.09.08Publication Number: 1342505Publication Date: 2002.04.03Priority Information: International: A62D3/00Applicant(s) Name: Petroleum Univ (Beijing)Address: Inventor(s) Name: Zhao Xionghu;Li Gang;Zhu MoPatent Agency Code: 11013Patent Agent: jin jieAbstract A process for solidifying the waste water-base drilling liquid with solidifying agent is disclosed. The solidifying agent is prepared from inorganic Fe-Salt coagulant (1-6%), clay adsorbent (0.1-0.6%),… Read More »

Instrument for judging quality of drilling hole

Application Number: 00111225Application Date: 2000.07.19Publication Number: 1334442Publication Date: 2002.02.06Priority Information: International: G01D21/00Applicant(s) Name: Du XinzhiAddress: Inventor(s) Name: Du XinzhiPatent Agency Code: 37107Patent Agent: zhao yanAbstract An instrument for judging the quality of drilled hole for building foundation is composed of aboveground control system and underground camera unit. Said aboveground control system consists of output controller,… Read More »

Drilling tool

Application Number: 00126325Application Date: 2000.09.04Publication Number: 1287898Publication Date: 2001.03.21Priority Information: 1999/9/9 DE 19942986.3International: E21B10/40Applicant(s) Name: Hilti AGAddress: Inventor(s) Name: Klien Warner;Bangls-Amblohus Hans-WarnerPatent Agency Code: 11038Patent Agent: zhang zhaodongAbstract The drilling tool, especialy a drill head ,has a shaft with a drill head with at least two cutters of hard metal. The cutters project radially from… Read More »

Rotational drilling method able to control vibration of drill rod

Application Number: 00112664Application Date: 2000.01.28Publication Number: 1283735Publication Date: 2001.02.14Priority Information: International: B06B1/00;E21B3/00Applicant(s) Name: Xinan Petroleum CollegeAddress: Inventor(s) Name: Wang ChaojinPatent Agency Code: 00000Patent Agent: Abstract A rotational drilling method for controlling the vibration of drill rod features that a vibration exciter is added in the drill collar at lower part of drill rod the convert… Read More »

Drilling fluid viscosity reducer

Application Number: 00112708Application Date: 2000.02.25Publication Number: 1267702Publication Date: 2000.09.27Priority Information: International: C09K7/02Applicant(s) Name: Chuanfeng Chemical Engineering Co., Ltd., ChengduAddress: Inventor(s) Name: Wang Zhenquan;Zou Danxiang;Zhou XianchengPatent Agency Code: 00000Patent Agent: Abstract Drilling fluid viscosity reducer used in petroleum and natural gas well drilling operation consists of: natural tannin extract 30-60 wt%, lignite fumic acid 15-60 wt%,… Read More »

Method and treater for using waste fume as circulated medium in drilling or repairing well

Application Number: 00112904Application Date: 2000.04.29Publication Number: 1291678Publication Date: 2001.04.18Priority Information: International: E21B21/16;F01N3/02Applicant(s) Name: Chuanxinan Design Inst of Mine Engineering, Sichuan Petroleum AdministrationAddress: Inventor(s) Name: Wen Ming;Luo Shiying;Chen ZhongshiPatent Agency Code: 51118Patent Agent: zhan fuwuAbstract A method for using waste fume in drilling or reparing well features that the waste fume from diesel engines in well… Read More »

Drilling cutter for ploughing

Application Number: 00113002Application Date: 2000.06.08Publication Number: 1304637Publication Date: 2001.07.25Priority Information: International: A01B15/04Applicant(s) Name: Li XiaolongAddress: Inventor(s) Name: Li XiaolongPatent Agency Code: 53101Patent Agent: wang yuAbstract A cuting tool for deep ploughing is composed of a sharp cutting cone, the multi-blade cutting conic jaws installed to said cutting cone, cutting edge on said conic jaws and… Read More »

Continuous wall constructing method including drilling holes and late grouting

Application Number: 00114586Application Date: 2000.05.24Publication Number: 1274788Publication Date: 2000.11.29Priority Information: International: E02D5/18;E02D5/20Applicant(s) Name: Wang PingAddress: Inventor(s) Name: Wang PingPatent Agency Code: 42104Patent Agent: huang hangjunAbstract The continuous wall is divided into several units, and in the construction of a unit, holes are first drilled with auger and the wall is protected with slurry, prefabricated cores… Read More »

Clutch for drilling tool

Application Number: 00118753Application Date: 2000.06.26Publication Number: 1287231Publication Date: 2001.03.14Priority Information: 1999/6/30 DE 19929833.5International: F16D7/04Applicant(s) Name: Hilti AGAddress: Inventor(s) Name: Newmar. AntonPatent Agency Code: 11038Patent Agent: zheng xiuzheAbstract The overload coupling for a drill has a drive section (4) partially surrounded by a drive take-off section (5), with at least one ratchet locking pocket (7) at… Read More »

Fast plugging agent for drilling fluid

Application Number: 00120613Application Date: 2000.12.21Publication Number: 1360004Publication Date: 2002.07.24Priority Information: International: C09K7/02;E21B33/12Applicant(s) Name: Haitian Hi-Tech Material Manufacture Co., Ltd, Deyang CityAddress: Inventor(s) Name: Liu Zhongze;An Liping;Lu TingjianPatent Agency Code: 00000Patent Agent: Abstract A fast plugging agent for well drilling fluid is prepared from puffed rick husk (60-90 pts.wt.), modified high-molecular cellulose (5-20 pts.wt.), amphiprotic cellulose… Read More »

Screwing tool for drilling and fastener

Application Number: 00109294Application Date: 2000.06.22Publication Number: 1285251Publication Date: 2001.02.28Priority Information: 1999/8/24 US 09/379,759International: B23B45/02;B23B51/08;B25B21/00;B25B23/00;B25F3/00Applicant(s) Name: Illinois Tool Works, Inc.Address: Inventor(s) Name: James C. Woren Jr.Patent Agency Code: 72003Patent Agent: pan peikunAbstract A drilling and wrenching tool for use with a rotary power tool and combinations thereof. The tool includes a drill adapter having a drill… Read More »

Holder for drilling means/screw driver

Application Number: 00105363Application Date: 2000.03.31Publication Number: 1268422Publication Date: 2000.10.04Priority Information: 1999/3/31 GB 9907463.5International: B23B31/12;B23B45/02;B25F5/00Applicant(s) Name: Black & Decker, Inc.Address: Inventor(s) Name: A. WalkerPatent Agency Code: 72001Patent Agent: zhang tiananAbstract A drill/driver chuck has a cylindrical member (2) with a central axial bore (4). A plurality of further bores (6) slanted with respect to the axis… Read More »

Rotary steering drilling system using hydraulic servo loop

Application Number: 00104162Application Date: 2000.03.15Publication Number: 1266940Publication Date: 2000.09.20Priority Information: 1999/3/15 US 09/268596International: E21B7/04;E21B44/00Applicant(s) Name: Schlumberger Holding Ltd.Address: Inventor(s) Name: A. P. Dorre;Zhang ShigongPatent Agency Code: 72001Patent Agent: zheng jianhuiAbstract An actively controlled rotary steerable drilling system for directional drilling of wells including a tubular rotary tool collar having rotatably mounted thereabout a substantially non-rotatable… Read More »

High-temp. high-pressure hypersalinity drilling fluid rheological property stabilizing agent

Application Number: 00103372Application Date: 2000.03.02Publication Number: 1263140Publication Date: 2000.08.16Priority Information: International: C09K7/00Applicant(s) Name: Wang BinAddress: Inventor(s) Name: Wang Bin;Wang FengPatent Agency Code: 00000Patent Agent: Abstract The invented high-temp. high-pressure high-sanility drilling fluid rheological property stabilizing agent is a polymer produced by using olefine acid, ester of olefine acid, olefine sulfonic acid, olefine acidamide, olefine quaternary… Read More »

Technology for cast-in-situ pedestal pile by screw drilling and high-pressure chemical churning

Application Number: 00102199Application Date: 2000.03.24Publication Number: 1315603Publication Date: 2001.10.03Priority Information: International: E02D5/36Applicant(s) Name: Sun FujunAddress: Inventor(s) Name: Sun FujunPatent Agency Code: 00000Patent Agent: Abstract A technology for building up a cast-in-situ pedestal pile includes such technological steps as drilling to predetermined depth, raising up the drilling rod while high-pressure water-jet churming for enlarging diameter, then… Read More »

Battery-operated type drilling tool

Application Number: 00101909Application Date: 2000.01.31Publication Number: 1266762Publication Date: 2000.09.20Priority Information: 1999/3/15 DE 19911362.9International: B25F5/02;H01M2/10Applicant(s) Name: Hilti AGAddress: Inventor(s) Name: Bergh Helmut;Fenf JosefPatent Agency Code: 11038Patent Agent: zhang zhaodongAbstract A battery-powered drill including a housing with a handle, an electrical drive motor located in the housing a battery unit insertable into the housing and fixedly securable… Read More »

Recovery and regeneration technology of waste filings from drilling and milling processing of printing circuit board

Application Number: 00100072Application Date: 2000.01.05Publication Number: 1259406Publication Date: 2000.07.12Priority Information: International: B09B3/00Applicant(s) Name: Wang HengjunAddress: Inventor(s) Name: Wang HengjunPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to the recovery and regeneration technology of waste scraps generated from the drixing and milling of printed circuit board. The waste scraps contain non-ferrous metal such as… Read More »