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1. 发明授权

US06634430B2 Method for installation of evacuated tubular conduits 失效
标题翻译：安装抽真空管状管道的方法
公开(公告)号：US06634430B2
公开(公告)日：2003-10-21
申请号：US10313770
申请日：2002-12-06
申请人： Charles R. Dawson , Mark W. Biegler
发明人： Charles R. Dawson , Mark W. Biegler
IPC分类号： E21B4310
CPC分类号： E21B43/305 , E21B43/10
摘要： A method of installing tubular conduits (e.g. casing, liners, sand screens) into a highly deviated borehole. A lower plug is attached at one end of a portion of a tubular conduit. This end is inserted into a borehole. After insertion of the length of conduit intended to be buoyancy-aided into the borehole, an inflatable plug insert is attached at the upper end. The inflatable plug has a built-in valve designed to enable fluid communication between the buoyancy-aided tubular section and the insertion string. A pump is attached to the built-in valve and the fluid within the section intended to be buoyancy-aided is removed, after which the built-in valve is closed. The buoyancy provided by the evacuated section enables insertion of the tubular conduit into boreholes greatly deviated from the vertical, reducing running drag and the risk of the tubular becoming differentially stuck. After the tubular conduit is inserted to the desired depth, the built-in valve is opened allowing the fluid above the plug insert to fill the buoyancy-aided section. Conventional well construction activities then resume.
摘要翻译：将管状导管（例如套管，衬垫，砂筛）安装到高度偏斜的钻孔中的方法。下管塞连接在管状导管的一部分的一端。将此端插入井眼。在将旨在浮力的管道的长度插入井眼之后，在上端附接可膨胀的塞子插入件。可膨胀塞子具有内置阀，其设计成使得能够在浮力辅助管状部分和插入柱之间进行流体连通。一个泵连接到内置的阀门，并且将要浮动的部分中的流体被移除，此后内置阀门关闭。由抽真空部分提供的浮力使得管状管道能够插入大大偏离竖直的钻孔中，减少了运行阻力，并降低了管状体的差异性卡住的风险。在将管状导管插入所需的深度之后，打开内置阀，允许插塞插入件上方的流体填充浮力辅助部分。传统的建筑活动然后恢复。

2. 发明授权

US4568392A Well treating fluid 失效
标题翻译：处理流体好
公开(公告)号：US4568392A
公开(公告)日：1986-02-04
申请号：US483394
申请日：1983-04-08
申请人： Charles R. Dawson , Norman N. Li , Dennis E. O'Brien
发明人： Charles R. Dawson , Norman N. Li , Dennis E. O'Brien
IPC分类号： C09K8/50 , E21B21/00 , C09K3/00 , C09K7/00
CPC分类号： C09K8/50 , E21B21/003
摘要： The instant invention is directed to shear thickening fluids which comprise a water-swellable material (clay), present in a sufficient concentration so as to be capable of forming a stiff paste upon interaction with the water used, and water wherein the clay and water are kept separated by an intervening hydrocarbon-surfactant composition. The intervening oil phase prevents the interaction between the water and the clay phases and results in a stable, nonreacting, pumpable composite until such time as the oil envelope is ruptured by application of a sufficiently high shear force. Upon such rupture, the materials interact rapidly forming a semi-rigid stiff paste.Various well-control problems, such as oil and gas with blowouts, can be controlled by use of the above-described composite. The composite is pumped down the well pipe. Exiting the orifices of the drill bit or a nozzle supplies the shear force needed to rupture the oil envelope thereby permitting the interaction between the clay and the water resulting in the formation of a stiff paste which can stop or prevent unwanted flow in or near the wellbore.
摘要翻译：本发明涉及剪切增稠流体，其包含水溶胀性材料（粘土），其以足够的浓度存在，以便能够在与所用的水相互作用时形成刚性糊料，以及其中粘土和水是通过中间的烃 - 表面活性剂组合物保持分离。中间油相防止水和粘土相之间的相互作用，并导致稳定的，不反应的可泵送复合材料，直到通过施加足够高的剪切力使油封破裂的时间为止。在这种破裂的情况下，材料相互作用迅速地形成半刚性刚性浆料。可以通过使用上述复合材料来控制各种井控问题，例如具有井喷的油和气。将复合材料从井管中抽出。排出钻头或喷嘴的孔口提供破裂油包壳所需的剪切力，从而允许粘土和水之间的相互作用，导致形成刚性浆料，从而可以阻止或防止在井筒内或附近不必要的流动。

3. 发明授权

US06173713B1 Eye patch construction method 失效
标题翻译：眼贴施工方法
公开(公告)号：US06173713B1
公开(公告)日：2001-01-16
申请号：US09533134
申请日：2000-03-23
申请人： Charles R. Dawson
发明人： Charles R. Dawson
IPC分类号： A61F900
CPC分类号： A61F9/04
摘要： An eye patch construction method for constructing an eye patch that adheres to the skin surface surrounding the eye to be covered but which leaves no residue on the skin surface to be cleaned.
摘要翻译：一种用于构建粘附于要被覆盖的眼睛周围的皮肤表面但在待清洁的皮肤表面上没有残留物的眼贴的眼贴补丁构造方法。

4. 发明授权

US4397354A Method of using a well treating fluid 失效
标题翻译：使用处理良好的液体的方法
公开(公告)号：US4397354A
公开(公告)日：1983-08-09
申请号：US389349
申请日：1982-06-19
申请人： Charles R. Dawson , Norman N. Li , Dennis E. O'Brien
发明人： Charles R. Dawson , Norman N. Li , Dennis E. O'Brien
IPC分类号： C08K3/34 , C08K5/01 , C09K8/502 , C09K8/516 , E21B33/138
CPC分类号： C09K8/502 , C09K8/516
摘要： The instant invention is directed to shear thickening fluids which comprise a water-swellable material (clay), present in a sufficient concentration so as to be capable of forming a stiff paste upon interaction with the water used, and water wherein the clay and water are kept separated by an intervening hydrocarbon-surfactant composition. The intervening oil phase prevents the interaction between the water and the clay phases and results in a stable, nonreacting, pumpable composite until such time as the oil envelope is ruptured by application of a sufficiently high shear force. Upon such rupture, the materials interact rapidly forming a semi-rigid stiff paste. Various well-control problems, such as oil and gas with blowouts, can be controlled by use of the above-described composite. The composite is pumped down the well pipe. Exiting the orifices of the drill bit or a nozzle supplies the shear force needed to rupture the oil envelope thereby permitting the interaction between the clay and the water resulting in the formation of a stiff paste which can stop or prevent unwanted flow in or near the wellbore.
摘要翻译：本发明涉及剪切增稠流体，其包含水溶胀性材料（粘土），其以足够的浓度存在，以便能够在与所用的水相互作用时形成刚性糊料，以及其中粘土和水是通过中间的烃 - 表面活性剂组合物保持分离。中间油相防止水和粘土相之间的相互作用，并导致稳定的，不反应的可泵送复合材料，直到通过施加足够高的剪切力使油封破裂的时间为止。在这种破裂的情况下，材料相互作用迅速地形成半刚性刚性浆料。可以通过使用上述复合材料来控制各种井控问题，例如具有井喷的油和气。将复合材料从井管中抽出。排出钻头或喷嘴的孔口提供破裂油包壳所需的剪切力，从而允许粘土和水之间的相互作用，导致形成刚性浆料，从而可以阻止或防止在井筒内或附近不必要的流动。

5. 发明授权

US5901795A Well collision avoidance 失效
标题翻译：避免碰撞
公开(公告)号：US5901795A
公开(公告)日：1999-05-11
申请号：US880614
申请日：1997-06-23
申请人： Yuh-Hwang Tsao , Charles R. Dawson , David W. Ure
发明人： Yuh-Hwang Tsao , Charles R. Dawson , David W. Ure
IPC分类号： E21B43/30 , E21B47/02 , E21B47/00
CPC分类号： E21B47/02 , E21B43/30
摘要： A novel method of determining the probability that a planned drilling path will collide with an existing wellbore is disclosed. The method utilizes available uncertainty information to determine a probability for each of a plurality of segments of the planned drilling path that a projection of the segment onto a plane will intersect a projection of a corresponding segment of the existing wellbore onto the plane. The method of this invention then determines the net probability for each segment of the planned drilling path that the segment will intersect the corresponding segment of the existing wellbore by taking into account the effect of constraints imposed on each segment, by adjacent segments. The probability that the planned drilling path will intersect the existing wellbore is determined by adding together all of the net probabilities.
摘要翻译：公开了一种确定计划钻孔路径将与现有井眼碰撞的概率的新方法。该方法利用可用的不确定性信息来确定计划的钻孔路径的多个段中的每一个的概率，即该段在一个平面上的投影将与现有井眼的相应段的投影相交到平面上。然后，本发明的方法通过考虑由相邻段施加在每个段上的约束的影响来确定该段将与现有井眼的相应段相交的计划钻孔路径的每个段的净概率。通过将所有的净概率相加，确定计划钻孔路径与现有井眼相交的概率。

6. 发明授权

US4503170A Shear thickening fluid 失效
标题翻译：剪切增稠液
公开(公告)号：US4503170A
公开(公告)日：1985-03-05
申请号：US400526
申请日：1982-07-21
申请人： Evelyn N. Drake , Mary E. Morrison , Charles R. Dawson
发明人： Evelyn N. Drake , Mary E. Morrison , Charles R. Dawson
IPC分类号： C09K8/50 , E21B21/00 , C08K3/34 , C08K7/00
CPC分类号： C09K8/50 , E21B21/003
摘要： The instant invention is directed to shear thickening fluids to prevent unwanted flow in wells penetrating subterranean formations. The shear thickening fluids comprise (1) a water swellable granular clay present in sufficient quantity so that, upon interaction with an aqueous phase, a stiff paste rapidly forms having a strength of at least 2000 lbs/100 ft.sup.2, (2) a nonaqueous phase comprising a hydrocarbon material and a surfactant, and (3) an aqueous phase comprising water and a watersoluble polymer. The granular clay and water-polymer solution are kept separated by the intervening hydrocarbon-surfactant composition, which is the continuous phase. The intervening oil phase prevents the interaction between the water-polymer phase and the granular clay and results in a stable, nonreacting, pumpable composite until such time as the granular clay is fragmented by application of a sufficiently high shear force. Upon such fragmenting, the clay and aqueous phase intereact resulting in a semi-rigid high strength paste which plugs any unwanted flow.
摘要翻译：本发明涉及剪切增稠流体，以防止穿透地下地层的井中的不期望的流动。剪切增稠流体包括（1）足量存在的水可溶胀颗粒状粘土，使得在与水相相互作用时，迅速形成强度至少为2000磅/ 100平方英尺的强硬浆料，（2）非水相包括烃材料和表面活性剂，和（3）包含水和水溶性聚合物的水相。粒状粘土和水 - 聚合物溶液通过作为连续相的中间烃 - 表面活性剂组合物保持分离。中间油相防止水 - 聚合物相和颗粒状粘土之间的相互作用，并导致稳定的，不反应的可泵送复合材料，直到颗粒状粘土通过施加足够高的剪切力而碎裂为止。在这种碎片化之后，粘土和水相相互作用，导致半刚性高强度浆料堵塞任何不想要的流动。

7. 发明授权

US4001774A Method of transmitting signals from a drill bit to the surface 失效
标题翻译：将信号从钻头传输到表面的方法
公开(公告)号：US4001774A
公开(公告)日：1977-01-04
申请号：US539361
申请日：1975-01-08
申请人： Charles R. Dawson , Richard J. Kostelnicek
发明人： Charles R. Dawson , Richard J. Kostelnicek
IPC分类号： E21B17/00 , E21B19/22 , E21B47/12 , G01V1/44 , G01V1/40 , G01V1/22
CPC分类号： G01V1/44 , E21B17/003 , E21B19/22 , E21B47/122
摘要： A system for performing wellbore telemetry operations wherein a communication link between a subsurface location in a well and the location substantially at the surface is established and maintained through electromagnetic coupling between two insulated electric conductors. The first conductor is electrically coupled to a transmitter, normally located at the subsurface location, and extends upwardly in the well. The second conductor is electrically coupled to a receiver, normally at the surface location, and extends down into the well. Normally, the two conductors will overlap along a substantial portion of the lengths thereof. As the well is drilled deeper and the drill string is lengthened, the transmitter and the first conductor follow the progression of the wellbore into the earth, thereby reducing the overlap between the first and second conductors. When the two conductors cease to overlap, the second conductor may be lengthened to re-establish the overlap.

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