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    • 1. 发明授权
    • Pseudoplastic mixed metal layered hydroxide fluid with fluid loss
additive and method of use in penetrating the earth
    • 具有流体损失添加剂的假塑性混合金属层状氢氧化物流体和渗透地球的方法
    • US5658859A
    • 1997-08-19
    • US594108
    • 1996-01-30
    • John L. Burba, IIILindsay J. Fraser
    • John L. Burba, IIILindsay J. Fraser
    • C09K8/14C09K8/20C09K7/02
    • C09K8/206C09K8/145Y10S507/903
    • The present invention relates to a pseudoplastic fluid composition including water, a mixed metal layered hydroxide dispersed in the water to impart preselected rheological properties to the fluid and a fluid loss additive composition including one or more of a carboxymethyl substituted vegetable starch, a carboxymethylated cellulosic compound or mixtures thereof in an amount effective to inhibit loss of fluid and with the degree of substitution being selected so that the carboxymethyl substituted compound is soluble in the fluid at the concentration of use without materially adversely affecting the rheological properties of the fluid and so that the fluid is resistant to fermentation. The improved composition includes a crosslinked carboxymethylated vegetable starch which has a degree of substitution in the broad range from about 0.3 to about 0.8 and in a narrower range of about 0.4 to about 0.7 and an uncrosslinked carboxymethylated vegetable starch or a carboxymethylated cellulosic which has a degree of substitution in the broad range from about 0.3 to about 0.57 and in a narrower range from about 0.4 to about 0.5. The drilling method includes drilling while circulating the drilling fluid with the improved composition therein.
    • 本发明涉及一种假塑性流体组合物,其包括水,分散在水中的混合金属层状氢氧化物以赋予流体预选的流变性能,以及含有一种或多种羧甲基取代的植物淀粉,羧甲基化纤维素化合物 或其混合物以有效抑制流体损失的量并且选择取代度使得羧甲基取代的化合物在使用浓度下可溶于流体,而不会对流体的流变学性质产生实质性的不利影响,因此, 液体耐发酵。 改进的组合物包括交联的羧甲基化植物淀粉,其具有在约0.3至约0.8的宽范围内和约0.4至约0.7的较窄范围内的取代度,以及未交联的羧甲基化植物淀粉或羧甲基化纤维素,其具有度 在约0.3至约0.57的宽范围内和在约0.4至约0.5的较窄范围内的取代。 钻井方法包括钻井,同时循环钻井液,其中组合物改进。
    • 4. 发明授权
    • Inflatable packer with protective rings
    • 充气包装机带保护环
    • US5353871A
    • 1994-10-11
    • US128353
    • 1993-09-28
    • David M. EslingerRobert M. Sorem
    • David M. EslingerRobert M. Sorem
    • E21B33/127
    • E21B33/1277
    • An inflatable packer apparatus having an inner elastomer sleeve covered by armor such as overlapped, longitudinal slats that extend between upper and lower collars. The end portions of such slats pass through stress rings having outwardly flared nose portions, and thin protector rings mounted inside the nose portions are employed to distribute very localized contact loads form the edge of the slats to the stress rings to prevent the formation of cracks in such rings. The apparatus further includes an elastomeric sleeve member which is expanded into sealing contact with a well bore wall by fluid pressure applied to the inside of the inner elastomeric sleeve member.
    • 一种充气封隔器装置,其具有由护甲覆盖的内部弹性体套筒,例如在上部和下部套环之间延伸的重叠的纵向板条。 这种板条的端部通过具有向外扩张的鼻部的应力环,并且使用安装在鼻部内部的薄的保护环来将非常局部的接触载荷从板条的边缘分配到应力环,以防止形成裂缝 这样的戒指。 该装置还包括弹性体套筒构件,其通过施加到内部弹性体套筒构件的内部的流体压力而膨胀成与井筒壁密封接触。
    • 8. 发明授权
    • Logging of subterranean wells using coiled tubing
    • 使用连续油管测井
    • US4984634A
    • 1991-01-15
    • US485187
    • 1990-02-26
    • Jacques Pilla
    • Jacques Pilla
    • E21B23/14E21B43/12
    • E21B23/14E21B43/121
    • An apparatus for production logging of a well utilizing artificial lift in a wellbore comprises coiled tubing extending into the wellbore, the coiled tubing having gas injector means provided on its remote end and including means for electrical communication from the surface to the injector means; production logging tool means located within the wellbore at a distance so as to separate the logging tool from the injector means and connector means interconnecting the logging tool and the injector means for maintaining a fixed separation between the logging tool and the injector means and for effecting electrical communication from the production logging tool to the electrical communication means located within the injector means.
    • 用于在井眼中利用人造举升器的井的生产测井的装置包括延伸到井筒中的连续油管,该盘管具有设置在其远端上的气体喷射器装置,并且包括用于从表面到喷射器装置的电连通的装置; 生产测井工具装置位于井筒内一定距离处,以便将测井工具与喷射器装置分开并将连接测井工具和喷射器装置的连接装置连接起来,以便在测井工具和喷射器装置之间保持固定的间隔,并实现电气 从生产测井工具到位于喷射器装置内的电气通信装置的通信。