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1. 发明申请

WO2010118876A3 MULTIPLE STAGE MECHANICAL DRIFT TOOL 审中-公开
标题翻译：多级机械漂移工具
公开(公告)号：WO2010118876A3
公开(公告)日：2010-12-16
申请号：PCT/EP2010002335
申请日：2010-04-14
申请人： SCHLUMBERGER SERVICES PETROL , SCHLUMBERGER TECHNOLOGY BV , SCHLUMBERGER HOLDINGS , SCHLUMBERGER CA LTD , PRAD RES & DEV LTD , GILLAN PETER
发明人： GILLAN PETER
IPC分类号： E21B47/08 , G01B5/12
CPC分类号： E21B47/08 , G01B5/12 , Y10T29/49826
摘要： A downhole tool for measuring a diameter within a borehole includes a mandrel having a first end and a second end with an axis defined therethrough, A tapered surface is formed on an outside surface of the mandrel such that a first end of the tapered surface has a larger diameter than a second end of the tapered surface. The downhole tool further includes a collet disposed about the mandrel such that the collet is configured to move along the axis of the mandrel with respect to the mandrel in a direction from the first end of the mandrel to the second end of the mandrel. A method of measuring a diameter within, a borehole, using a downhole tool including a mandrel having a first end, a second end, and an axis defined therethrough; and a collet disposed about the mandrel, the method includes: disposing the downhole tool into the borehole such that the first end of the mandrel enters the borehole before the second end of the mandrel; and applying a force to the second end of the downhole tool, upon the downhole tool contacting an obstruction in the borehole. Based on the force applied to the downhole tool, the collet moves along the axis of the mandrel with respect to the mandrel such that an outer diameter of the downhole tool decreases. A method of manufacturing a downhole tool for measuring a diameter within a borehole includes providing a mandrel having a first end and a second end with an axis defined therethrough, forming a tapered surface on an outside surface of the mandrel such that a first end of the tapered surface has a larger diameter than a second end of the tapered surface; and disposing a collet about the mandrel such that the collet is configured to move along the axis of the mandrel with respect to the mandrel in a direction from the first end of the mandrel to the second end of the mandrel.
摘要翻译：用于测量钻孔内的直径的井下工具包括具有第一端和第二端的心轴，所述第一端和第二端具有限定的轴线。锥形表面形成在心轴的外表面上，使得锥形表面的第一端具有直径比锥形表面的第二端更大。井下工具进一步包括设置在心轴周围的夹头，使得夹头构造成沿从心轴的第一端到心轴的第二端的方向相对于心轴沿心轴的轴线移动。一种使用井下工具测量钻孔内的直径的方法，所述井下工具包括具有第一端，第二端和通过其限定的轴的心轴; 所述方法包括：将所述井下工具放置在所述钻孔中，使得所述心轴的所述第一端在所述心轴的所述第二端之前进入所述钻孔; 以及在井下工具接触钻孔中的障碍物时向井下工具的第二端施加力。基于施加到井下工具的力，夹头相对于心轴沿着心轴的轴线移动，使得井下工具的外径减小。一种制造用于测量钻孔内的直径的井下工具的方法，包括提供心轴，所述心轴具有第一端和第二端，所述第一端和第二端具有限定穿过其中的轴线，在所述心轴的外表面上形成锥形表面，使得所述锥形表面具有比锥形表面的第二端更大的直径; 以及围绕所述心轴设置夹头，使得所述夹头构造成沿从所述心轴的第一端到所述心轴的第二端的方向相对于所述心轴沿所述心轴的轴线移动。

2. 发明专利

BRPI0900142A2 未知
公开(公告)号：BRPI0900142A2
公开(公告)日：2009-09-22
申请号：BRPI0900142
申请日：2009-01-29
申请人： PRAD RES & DEV LTD
发明人： GILLAN PETER , VARKEY JOSPEH , LOZANO-GENDREAU JOSE RAMON , HERNANDEZ-SOLIS VLADIMIR , SMITS JAN W , ARDIC HIFZI
IPC分类号： E21B23/14 , E21B47/12 , F16L11/00
摘要： A cable assembly for use in a hydrocarbon well of extensive depth. The cable assembly may be effectively employed at well depths of over 30,000 feet. Indeed, embodiments of the assembly may be effectively employed at depths of over 50,000 feet while powering and directing downhole equipment at a downhole end thereof. The assembly may be made up of a comparatively high break strength uphole cable portion coupled to a lighter downhole cable portion. This configuration helps to ensure the structural integrity of the assembly in light of its own load when disposed in a well to such extensive depths. Additionally, the assembly may be employed at such depths with an intervening connector sub having a signal amplification mechanism incorporated therein to alleviate concern over telemetry between the surface of the oilfield and the downhole equipment.

3. 发明专利

SG175733A1 MULTIPLE STAGE MECHANICAL DRIFT TOOL 未知
公开(公告)号：SG175733A1
公开(公告)日：2011-12-29
申请号：SG2011075777
申请日：2010-04-14
申请人： PRAD RES & DEV LTD
发明人： GILLAN PETER
摘要： A downhole tool for measuring a diameter within a borehole includes a mandrel having a first end and a second end with an axis defined therethrough, A tapered surface is formed on an outside surface of the mandrel such that a first end of the tapered surface has a larger diameter than a second end of the tapered surface. The downhole tool further includes a collet disposed about the mandrel such that the collet is configured to move along the axis of the mandrel with respect to the mandrel in a direction from the first end of the mandrel to the second end of the mandrel. A method of measuring a diameter within, a borehole, using a downhole tool including a mandrel having a first end, a second end, and an axis defined therethrough; and a collet disposed about the mandrel, the method includes: disposing the downhole tool into the borehole such that the first end of the mandrel enters the borehole before the second end of the mandrel; and applying a force to the second end of the downhole tool, upon the downhole tool contacting an obstruction in the borehole. Based on the force applied to the downhole tool, the collet moves along the axis of the mandrel with respect to the mandrel such that an outer diameter of the downhole tool decreases. A method of manufacturing a downhole tool for measuring a diameter within a borehole includes providing a mandrel having a first end and a second end with an axis defined therethrough, forming a tapered surface on an outside surface of the mandrel such that a first end of the tapered surface has a larger diameter than a second end of the tapered surface; and disposing a collet about the mandrel such that the collet is configured to move along the axis of the mandrel with respect to the mandrel in a direction from the first end of the mandrel to the second end of the mandrel.

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