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1. 发明授权

US5054553A Method of underground-water exploration during well-construction by hydraulic-system drilling 失效
标题翻译：液压系统钻井在井下施工中的地下水探测方法
公开(公告)号：US5054553A
公开(公告)日：1991-10-08
申请号：US392963
申请日：1989-08-01
申请人： Gerhard Grotendorst
发明人： Gerhard Grotendorst
IPC分类号： E03B3/12 , E21B43/04 , E21B43/12 , E21B49/08
CPC分类号： E21B49/084 , E03B3/12 , E21B43/04 , E21B43/121
摘要： An annular passage defined by a peripheral walls of pipe segments connected together and a wall of a drill formed in a rock is filled with a filtering medium protruding above the upper edge of a perforated low pipe segment and interacting with a flushing fluid filling the rest of the annular space forming thereby a seal preventing the hydraulic communication between a water originated at a level of the rock to be explored and a water from other levels located above the seal.
摘要翻译： PCT No.PCT / DE87 / 00558 Sec。 371日期1989年8月1日 102（e）日期1989年8月1日PCT公开1987年11月29日PCT公布。出版物WO88 / 04352 日期1988年6月16日。由连接在一起的管段的周壁和形成在岩石中的钻头的壁限定的环形通道填充有过滤介质，突出在穿孔低管段的上边缘上方并与填充环形空间的其余部分的冲洗流体，从而形成密封件，以防止要探索的岩石水平的水和来自位于密封件上方的其它水位的水的液压连通。

2. 发明授权

US06662644B1 Formation fluid sampling and hydraulic testing tool 失效
标题翻译：地层液体取样和液压试验工具
公开(公告)号：US06662644B1
公开(公告)日：2003-12-16
申请号：US10187302
申请日：2002-06-28
申请人： Josef Grotendorst , Gerhard Grotendorst
发明人： Josef Grotendorst , Gerhard Grotendorst
IPC分类号： E21B4700
CPC分类号： E21B49/084
摘要： A formation fluid sampling and hydraulic testing tool for a drilling apparatus that includes a drilling string comprised of a drilling pipe and a drilling bit is provided. The tool has an outer tube disposed between the drilling pipe and the drilling bit. The outer tube is provided with a plurality of through holes for receiving formation fluid into the outer tube. An inner tube is disposed within, and spaced from, the outer tube to form an annular space between them. The inner tube is provided with a plurality of through holes that are adapted to communicate with the annular space. One end of the inner tube is connectable to a pumping mechanism for drawing formation fluid through the through holes of the outer tube and of the inner tube for the purpose of collecting a sample of the fluid and imposing a hydraulic stress on the formation. The through holes of the inner tube can be closed off or released. Valves are provided for establishing or closing off communication between the interior of the inner tube and the open ends of the outer tube.
摘要翻译：提供了一种用于钻井设备的地层液体取样和液压测试工具，其包括由钻孔管和钻头组成的钻柱。该工具具有设置在钻管和钻头之间的外管。外管设置有多个用于将地层流体接收到外管中的通孔。内管设置在外管内并与外管间隔开，以在它们之间形成环形空间。内管设置有适于与环形空间连通的多个通孔。内管的一端可连接到泵送机构，用于通过外管和内管的通孔吸引地层流体，以收集流体样品并在地层上施加液压应力。内管的通孔可以封闭或释放。阀被设置用于建立或关闭内管的内部和外管的开口端之间的连通。

3. 发明授权

US5097914A Method and device for producing unadulterated water samples in drilling a well 失效
标题翻译：在钻井中生产无水水样的方法和装置
公开(公告)号：US5097914A
公开(公告)日：1992-03-24
申请号：US526286
申请日：1990-05-21
申请人： Gerhard Grotendorst
发明人： Gerhard Grotendorst
IPC分类号： E03B3/18 , E21B43/08 , E21B49/08 , G01N1/10 , G01N1/14
CPC分类号： E21B49/084 , E21B43/082 , G01N1/14
摘要： A method and device is used for producing uncontaminated water samples when drilling a well, using a hollow bar for transporting drilling fluid whose conduits consist of nonperforated tubes and at least one perforated tube; the water sample is pumped through filter sand from a water-conducting horizontal, approached by the boring bar, via a perforated insert positioned in the latter after the filter sand is deposited between the perforated tube, the adjacent nonperforated conduit and the bore wall and incorporated into the system as a filter. The bore up to the first water-conducting horizontal is drilled with the closed perforated insert and the first water sample obtained. After closing the perforations, drilling is continued and the filter sand removed until the next water-conducting horizontal is reached, from which a second water sample is taken after reopening the perforations.
摘要翻译：一种方法和装置用于在钻井时生产未污染的水样品，使用中空棒来输送其导管由非穿孔管和至少一个穿孔管组成的钻井液; 在穿孔管，相邻的非穿孔管道和孔壁之间沉积过滤砂后，将水样品从导水水平线穿过过滤砂，通过钻孔杆穿过位于后者的多孔插入件，作为过滤器进入系统。钻出第一个导水水平的钻孔，并带有封闭的穿孔插件和获得的第一个水样。在关闭穿孔之后，继续钻孔，并且去除滤砂，直到达到下一个导水水平，在重新打开穿孔之后从其中取出第二个水样。

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