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公开(公告)号：US4620596A
公开(公告)日：1986-11-04
申请号：US674378
申请日：1984-10-31
申请人： Thomas C. Mondshine
发明人： Thomas C. Mondshine
IPC分类号： C09K8/50 , C09K8/504 , E21B33/138
CPC分类号： C09K8/50 , C09K8/5045 , Y10S507/903 , Y10S507/925
摘要： Nondamaging treating fluids containing sparingly soluble hydrated borate bridging agents having a particle size distribution within the range about 1 micron to about 2000 microns are disclosed. The treating fluids comprise an aqueous salt solution having a density from about 1.0 g/cm.sup.3 to about 1.20 g/cm.sup.3, the hydrated borate bridging agent in an amount sufficient to bridge and seal off a subterranean formation contacted by the treating fluid, and a viscosifier and suspension additive in an amount to provide sufficient viscosity to maintain the bridging agent in suspension. A fluid loss control additive may be added to enhance the fluid loss control and formation sealing capacity of the treating fluid.Well treatments may be practiced by pumping or discharging the fluid or a slug or pill of the fluid into an oil, gas, water, injection or storage well where operations are to be conducted in which it is desired to temporarily plug the permeable zone while such operations are carried out. Thereafter, the hydrated borate bridging agents are removed by connate water from the permeable zone, or by a nonsaturated brine wash, or ordinary water or acid circulated in the well.
摘要翻译： PCT No.PCT / US83 / 01408 Sec。 371日期1984年10月31日 102（e）日期1984年10月31日PCT提交1983年9月15日PCT公布。 公开号WO85 / 01309 日期：1985年3月28日。公开了具有粒度分布在约1微米至约2000微米范围内的含有微溶水合硼酸盐桥联剂的含水处理液。 处理流体包含密度为约1.0g / cm 3至约1.20g / cm 3的盐水溶液，水合硼酸盐桥接剂的量足以桥接和密封由处理流体接触的地下地层，以及增粘剂 和悬浮添加剂，其量足以提供足够的粘度以保持桥连剂悬浮。 可以添加流体损失控制添加剂以增强处理流体的流体损失控制和形成密封能力。 可以通过将流体或液体的块或药丸泵送或排出到油，气体水，注射或储存井中来进行井处理，其中在要进行的操作中期望暂时堵塞可渗透区域，同时这种操作 被执行。 此后，水合硼酸盐桥接剂通过合适的水从可渗透区域除去，或通过非饱和盐水洗涤，或在井中循环的普通水或酸除去。
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公开(公告)号：US4369843A
公开(公告)日：1983-01-25
申请号：US874770
申请日：1978-02-03
申请人： Thomas C. Mondshine
发明人： Thomas C. Mondshine
IPC分类号： C09K8/50 , E21B33/138
CPC分类号： C09K8/50 , C09K2208/18 , Y10S507/925
摘要： A well completion and workover method wherein a subterranean formation is contacted with a high density, nondamaging treating fluid which comprises a saturated, aqueous saline solution with at least one water soluble salt that is substantially insoluble in the saturated saline solution. The water soluble salt has a particle size range of about 5 microns to about 800 microns, and greater than about 5 percent of the particles are coarser than 44 microns to control the pressure in the formation; to bridge and seal off the formation; to avoid particle invasion; and also to minimize fluid loss to the formation. A minor amount of a fluid loss additive is included in the treating fluid to inhibit loss of fluid into the formation and a minor amount of a suspension additive is included in the treating fluid to prevent settling of the water soluble salt particles in the aqueous saline solution. The aqueous saline solution should have a density of at least about 10 pounds per gallon.
摘要翻译： 一种完井和修井方法，其中地下地层与高密度，非沉降处理流体接触，该处理流体包含饱和的盐水溶液和至少一种基本上不溶于饱和盐水溶液的水溶性盐。 水溶性盐具有约5微米至约800微米的粒度范围，并且大于约5％的颗粒比44微米更粗，以控制地层中的压力; 桥梁和封闭形成; 避免粒子入侵; 并且还使流体对地层的损失最小化。 在处理流体中包含少量的流体损失添加剂以抑制流体进入地层的损失，并且在处理流体中包含少量的悬浮添加剂以防止水溶性盐颗粒在盐水溶液中的沉降 。 盐水溶液的密度应至少为每加仑10磅。
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公开(公告)号：US4175042A
公开(公告)日：1979-11-20
申请号：US850639
申请日：1977-11-11
申请人： Thomas C. Mondshine
发明人： Thomas C. Mondshine
CPC分类号： C09K8/90 , C09K8/08 , C09K8/203 , C09K8/206 , C09K8/50 , C09K8/514 , C09K2208/18 , Y10S507/925
摘要： A nondamaging work over and completion fluid having water soluble bridging agents includes a saturated brine solution having at least one water soluble salt which is insoluble in the saturated brine solution and having particle size range of about 5 microns to about 800 microns and wherein greater than about 5% of the particles are coarser than 44 microns. Viscosifier and suspension additive is added to provide the desired viscosity and assist in maintaining the water soluble sized salt suspended in the saturated brine solution. If desired or necessary a fluid loss control agent may be added to enhance the fluid loss control or filtration control of the completion fluid.The invention may be practiced by pumping or discharging the fluid or a slug or pill of the fluid into an oil, gas, water, injection or storage well where operations are to be conducted in which it is desired to temporarily plug the permeable zone while such operations are carried out. Thereafter, the water soluble bridging agents are removed by connate water from the permeable zone, or a nonsaturated brine wash, or ordinary water circulated in the well.
摘要翻译： 具有水溶性桥连剂的非破坏性工作和完成液包括具有至少一种不溶于饱和盐水溶液并具有约5微米至约800微米的粒度范围的至少一种水溶性盐的饱和盐水溶液，其中大于约 5％的颗粒比44微米粗。 加入粘度计和悬浮添加剂以提供所需的粘度，并有助于保持悬浮在饱和盐水溶液中的水溶性大小的盐。 如果需要或需要，可以加入流体损失控制剂以增强完成流体的流体损失控制或过滤控制。 本发明可以通过将流体或液体的块状物或药丸泵送或排出到油，气体，水，注射或储存井中来实施，在这些操作中，期望暂时堵塞可渗透区域， 执行操作。 此后，水溶性桥连剂通过合适的水从可渗透区域，或非饱和盐水洗涤物或在井中循环的普通水来除去。
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4.发明授权Well drilling and servicing fluids which deposit an easily removable filter cake 失效良好的钻井和维修流体，沉积易于拆卸的滤饼
公开(公告)号：US5783527A
公开(公告)日：1998-07-21
申请号：US732151
申请日：1996-10-16
CPC分类号： C09K8/52 , C09K8/08 , C09K8/206 , C09K8/514 , C09K2208/18 , Y10S507/906
摘要： The invention provides alkaline water base well drilling and servicing fluids which deposit an easily degradable and removable filter cake on the sides of a borehole during well drilling and servicing operations. The fluids contain one or more polysaccharide polymers, sized bridging particles, and a peroxide selected from the group consisting of alkaline earth metal peroxides, zinc peroxide, and mixtures thereof. The fluids deposit a filter cake containing the peroxide.
摘要翻译： 本发明提供碱性水基钻井和维修流体，其在钻井和维修操作期间在钻孔的侧面上沉积易于降解和可移除的滤饼。 流体含有一种或多种多糖聚合物，大小的桥连颗粒和选自碱土金属过氧化物，过氧化锌及其混合物的过氧化物。 流体沉积含有过氧化物的滤饼。
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公开(公告)号：US4822500A
公开(公告)日：1989-04-18
申请号：US161765
申请日：1988-02-29
CPC分类号： C09K8/90 , C09K8/08 , C09K2208/18 , Y10S507/903 , Y10S507/925
摘要： Disclosed are well working and treating fluids comprising a saturated aqueous saline solution, a particulate water soluble salt which is insoluble in the saturated saline solution, xanthomonas gum, and an epichlorohydrin crosslinked hydroxypropyl starch derivative wherein the xanthomonas gum and the epichlorohydrin crosslinked hydroxypropyl starch derivative interact to synergistically enhance the suspension characteristics of the fluid and to decrease the fluid loss of the fluid.Also disclosed is an additive composition for enhancing the suspension characteristics and reducing the fluid loss of saturated brine based well treating fluids comprising specified proportions of xanthomonas gum and epichlorohydrin crosslinked hydroxypropyl starch.
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6.发明授权Process and composition to enhance removal of polymer-containing filter cakes from wellbores 失效用于增强从井筒中除去含聚合物的滤饼的方法和组合物
公开(公告)号：US5238065A
公开(公告)日：1993-08-24
申请号：US912282
申请日：1992-07-13
CPC分类号： C09K8/60 , C09K8/52 , Y10S507/921 , Y10S507/928
摘要： The invention provides a process for the removal of filter cakes containing one or more polysaccharide polymers and bridging particles from the sides of a borehole in a hydrocarbon-producing formation which comprises contacting the filter cake with a novel soak solution comprising an aqueous liquid, a peroxide selected from the group consisting of alkaline earth metal peroxides, zinc peroxide, and mixtures thereof, and an acidic substance to provide the soak solution with a pH in the range from about 1 to about 8, and optionally, an activator for the peroxide, for a period of time at least sufficient to decompose the polysaccharide polymers therein to such an extent that the filter cake forms a loosely adherent mass on the sides of the borehole, and thereafter contacting the filter cake with a wash solution in which the bridging particles are soluble to remove the remaining filter cake solids from the sides of the borehole. Preferably the aqueous liquid in the soak solution has no appreciable solubilizing effect on the bridging particles.
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公开(公告)号：US4619776A
公开(公告)日：1986-10-28
申请号：US763630
申请日：1985-08-09
申请人： Thomas C. Mondshine
发明人： Thomas C. Mondshine
CPC分类号： C09K8/685 , Y10S507/903 , Y10S507/922
摘要： Disclosed are hydraulic fracturing fluids of enhanced temperature stability containing boron crosslinked galactomannan polymers and methods of producing same. The temperature stability of fracturing fluids containing galactomannan polymers is increased by adding to the fracturing fluid a sparingly soluble borate having a slow solubility rate as defined herein. The sparingly soluble borate provides a pH in the range from about 8 to about 10, provides a source of boron for solublizing at elevated temperature thus enhancing the crosslinking of the galactomannan polymer, and it also decreases the leak-off properties of the fracturing fluid.
摘要翻译： PCT No.PCT / US85 / 01269 Sec。 371日期1985年8月9日第 102（e）1985年8月9日PCT 1985年7月2日PCT。公开了含有硼交联的半乳甘露聚糖的增强温度稳定性的水力压裂液及其生产方法。 含有半乳甘露聚糖聚合物的压裂液的温度稳定性通过向压裂液中加入具有如本文定义的缓慢溶解度的微溶硼酸盐而增加。 微溶硼酸盐提供在约8至约10范围内的pH值，提供硼源以在升高的温度下溶解，从而增强半乳甘露聚糖聚合物的交联，并且还降低压裂液的泄漏性能。
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公开(公告)号：US4192756A
公开(公告)日：1980-03-11
申请号：US960057
申请日：1978-11-13
申请人： Thomas C. Mondshine
发明人： Thomas C. Mondshine
CPC分类号： C01D3/26 , B01J2/30 , Y10S507/925
摘要： Caking of potassium chloride and sodium chloride in the particle size range of 20 mesh and finer is inhibited by adding one or more alkaline earth or multi-valent metal salts of lignosulfonate in an amount by weight within the range of about 1% to about 20% to the potassium chloride or sodium chloride.
摘要翻译： 通过加入一种或多种木质素磺酸盐的碱土金属或多价金属盐，其重量含量在约1％至约20％的范围内，可以抑制粒度范围为20目以上的氯化钾和氯化钠的结晶， 到氯化钾或氯化钠。
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公开(公告)号：US4040866A
公开(公告)日：1977-08-09
申请号：US649553
申请日：1976-01-15
申请人： Thomas C. Mondshine
发明人： Thomas C. Mondshine
CPC分类号： E21B21/068 , E21B21/066 , E21B41/005
摘要： A process for removing oil base mud adhering to cuttings obtained in well drilling operations, comprising contacting the cuttings with a solvent consisting essentially of a mixture of ethyleneglycol monoisobutyl ether, diethyleneglycol monobutyl ether acetate, ethyl butyl ketone, ethyleneglycol monobutyl ether, ethyleneglycol monomethyl ether acetate, diethyleneglycol diethyl ether, and diethyleneglycol mono-n-hexyl ether, together with paraffin oil, in relative proportions of from 10:90 to 80:20. This forms a mixture of oil and solvent on the cuttings which is readily removable; as by washing or centrifuging or a combination of the two.
摘要翻译： 一种用于除去附着在钻井操作中获得的切屑的油基泥浆的方法，包括使切屑与基本上由乙二醇单异丁醚，二乙二醇单丁醚乙酸酯，乙基丁基酮，乙二醇单丁基醚，乙二醇单甲醚乙酸酯 ，二乙二醇二乙醚和二乙二醇单正己醚与石蜡油一起以10:90至80:20的相对比例进行。 这就形成了油和溶剂的混合物，可以很容易地去除; 如通过洗涤或离心或两者的组合。
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10.发明授权Well drilling and servicing fluids which deposit an easily removable filter cake 失效良好的钻井和维修流体，沉积易于拆卸的滤饼
公开(公告)号：US5607905A
公开(公告)日：1997-03-04
申请号：US212814
申请日：1994-03-15
CPC分类号： C09K8/52 , C09K8/08 , C09K8/206 , C09K8/514 , C09K2208/18 , Y10S507/906
摘要： The invention provides alkaline water base well drilling and servicing fluids which deposit an easily degradable and removable filter cake on the sides of a borehole during well drilling and servicing operations. The fluids contain one or more polysaccharide polymers, sized bridging particles, and a peroxide selected from the group consisting of alkaline earth metal peroxides, zinc peroxide, and mixtures thereof. The fluids deposit a filter cake containing the peroxide. The invention also provides processes for enhancing the removal of the filter cake which comprises depositing a peroxide-containing filter cake on the sides of the borehole, or on the filter cake already present on the sides of the borehole, and thereafter contacting the peroxide-containing filter cake with an acidic solution to activate the peroxide which thereafter degrades the polysaccharide polymers in the filter cake. Preferably the filter cake containing the degraded polymer is washed with a fluid in which the bridging particles are soluble to remove the entire filter cake(s) from the sides of the borehole.
摘要翻译： 本发明提供碱性水基钻井和维修流体，其在钻井和维修操作期间在钻孔的侧面上沉积易于降解和可移除的滤饼。 流体含有一种或多种多糖聚合物，大小的桥连颗粒和选自碱土金属过氧化物，过氧化锌及其混合物的过氧化物。 流体沉积含有过氧化物的滤饼。 本发明还提供了用于增强滤饼去除的方法，其包括在钻孔的侧面上沉积含过氧化物的滤饼，或者在已经存在于钻孔的侧面上的滤饼上，然后使含过氧化物的滤饼 滤饼用酸性溶液活化过氧化物，其后降解滤饼中的多糖聚合物。 优选地，含有降解的聚合物的滤饼用其中桥接颗粒可溶的流体洗涤以从钻孔的侧面去除整个滤饼。
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