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公开(公告)号：US4807703A
公开(公告)日：1989-02-28
申请号：US87561
申请日：1987-08-19
摘要： A process for acid treating a formation where a gelled and foamed acid pre-flush solution is utilized. Said pre-flush is injected into the formation under conditions and pressures sufficient to fracture said formation. Thereafter, a foamed acid solution is directed into the gelled and foamed acid pad. The resultant viscosity contrast causes the foamed acid to "finger" through said pad and unevenly etch the fracture face. "Fingering" of the foamed acid through said pad causes it to propagate substantially further into the formation than with existing sandstone acidizing processes.
摘要翻译： 用于酸处理使用胶凝和发泡的酸性预冲洗溶液的地层的方法。 在足以破坏所述地层的条件和压力下，所述预冲洗被注入到地层中。 此后，将发泡的酸溶液引导到胶凝和发泡的酸性垫中。 所产生的粘度对比使发泡的酸“穿过”通过所述垫并且不均匀地蚀刻断裂面。 发泡酸通过所述垫的“指趾”使得其与现有的砂岩酸化方法相比基本上进一步传播到地层中。
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公开(公告)号：US4807702A
公开(公告)日：1989-02-28
申请号：US151763
申请日：1988-02-03
IPC分类号： C09K8/60 , C09K8/74 , E21B43/263 , E21B43/24 , E21B43/267 , E21B43/27
CPC分类号： C09K8/74 , C09K8/60 , E21B43/263
摘要： A process for improving the effectiveness of control pulse fracturing in a carbonate formation wherein a high energy impulse device having a metallic sheath reactive with a retarded acid is utilized in combination with a retarded acid. Upon placement of such device within a wellbore, the metallic sheath reacts with the retarded acid and generates heat which activates said acid. Afterwards, the high energy impulse device is ignited which fractures the formation and forces the activated acid into the created fractures thereby enhancing acid contact with said formation.
摘要翻译： 一种用于提高碳酸盐岩地层中控制脉冲压裂效果的方法，其中具有与延迟酸反应的金属鞘的高能脉冲装置与延迟酸组合使用。 在将这种装置放置在井筒内时，金属护套与延迟酸反应并产生激活所述酸的热量。 之后，点燃高能脉冲装置，破坏形成并迫使活化的酸进入所产生的裂缝，从而增强与所述地层的酸接触。
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公开(公告)号：US4787456A
公开(公告)日：1988-11-29
申请号：US36742
申请日：1987-04-10
IPC分类号： C09K8/72
CPC分类号： C09K8/72
摘要： A process for improved acidizing in carbonate formations, where controlled pulse fracturing (CPF) is utilized in combination with a retarded acid. The retarded acid comprises hydrochloric, formic, acetic acid or mixtures thereof which is placed in a wellbore adjacent the area to be treated. Said acid can contain retarders and corrosion inhibitors sufficient to make said acid stable in the wellbore. At least one CPF device is placed in said acid near the interval to be treated. Upon detonation of said device, acid is forced into the desired interval, thereby enhancing the acidizing treatment.
摘要翻译： 一种改进碳酸盐酸化酸化的方法，其中控制脉冲压裂（CPF）与延迟酸组合使用。 延迟酸包括盐酸，甲酸，乙酸或其混合物，其被放置在靠近待处理区域的井眼中。 所述酸可以含有足以使所述酸在井眼中稳定的缓凝剂和腐蚀抑制剂。 在待处理间隔附近，至少一个CPF装置放置在所述酸中。 在所述装置爆炸时，将酸强制到期望的间隔，从而增强酸化处理。
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公开(公告)号：US4756369A
公开(公告)日：1988-07-12
申请号：US935355
申请日：1986-11-26
CPC分类号： E21B43/164 , E21B43/24 , Y02P90/70
摘要： A process for recovering viscous heavy oil from a substantially shallow reservoir having a low temperature and pressure. Following a steam flood, liquid carbon dioxide is injected into the reservoir where said carbon dioxide remains in its liquid state. Afterwards, a spacer volume of a vaporizable drive fluid is injected into the reservoir behind said carbon dioxide. Subsequently, steam injection is commenced which causes the drive fluid to vaporize and the liquid carbon dioxide to gasify. Vaporization of the drive fluid along with gasification of the carbon dioxide causes a pressure increase in the formation allowing the thinned oil to be removed therefrom.
摘要翻译： 一种从具有低温和低压的基本浅的储层中回收粘性重油的方法。 在蒸汽泛滥之后，液体二氧化碳被注入到储存器中，其中所述二氧化碳保持在其液态。 之后，将可蒸发驱动流体的间隔体积注入到二氧化碳后面的储存器中。 随后，开始蒸汽注入，这导致驱动流体蒸发并使液体二氧化碳气化。 驱动流体的蒸发与二氧化碳的气化一起导致地层中的压力增加，从而使稀释的油被除去。
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公开(公告)号：US4711302A
公开(公告)日：1987-12-08
申请号：US900466
申请日：1986-08-25
CPC分类号： E21B43/04 , E21B43/003
摘要： Voids in a gravel pack, particularly in deviated wellbores, are substantially eliminated via a process which utilizes a high energy impulse device. Said device is lowered into the vicinity of the voids and detonated thereby causing turbulence through the screen or slotted liner which causes a re-adjustment of the pack. Energy from said device can be tailored to allow considerable agitation to the gravel pack and screen without destroying said screen.
摘要翻译： 通过利用高能量冲击装置的方法，基本上消除了砾石充填中的空隙，特别是偏斜的井筒。 所述装置下降到空隙附近并引爆，由此引起湍流穿过屏幕或狭槽衬垫，这导致包的重新调整。 来自所述装置的能量可以被定制以允许对砾石包装和屏幕的相当大的搅动而不破坏所述屏幕。
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公开(公告)号：US4708206A
公开(公告)日：1987-11-24
申请号：US919120
申请日：1986-10-15
摘要： A process for removing particulate matter from a non-dissoluble sand control pack containing grangulated ceramic material which pack is used to produce hydrocarbonaceous fluid from a subterranean formation. Said pack is contacted with a mineral acid of a strengh and composition sufficient to react with said particulate matter thereby removing said matter and increasing the permeability of said pack without damaging said pack.
摘要翻译： 一种从含有颗粒状陶瓷材料的不溶性防砂包装中除去颗粒物质的方法，该包装用于从地层中产生烃类流体。 所述包装与强度和组合物的无机酸接触，足以与所述颗粒物质反应，从而除去所述物质并增加所述包装的渗透性而不损坏所述包装。
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公开(公告)号：US4669546A
公开(公告)日：1987-06-02
申请号：US815970
申请日：1986-01-03
IPC分类号： E21B43/26
CPC分类号： E21B43/26
摘要： A method for improving vertical hydraulic fracturing of an inclined wellbore through in-line openings in said wellbore. Via this method, the initiation, growth, and propagation of vertical fractures are controlled.
摘要翻译： 一种用于通过所述井眼中的在线开口改进倾斜井眼的垂直水力压裂的方法。 通过这种方法，控制垂直裂缝的起始，生长和传播。
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公开(公告)号：US4617997A
公开(公告)日：1986-10-21
申请号：US769226
申请日：1985-08-26
IPC分类号： E21B43/263
CPC分类号： E21B43/263
摘要： The effectiveness of controlled pulse fracturing treatment ("CPF") is enhanced by creating a foam when energy is released from the pulse device. Foam created by a foaming agent in the wellbore fluid increases said fluid's apparent viscosity and controls fluid loss. The increased viscosity causes additional fracture propagation. Upon commencement of production of hydrocarbonaceous fluids, fines and debris resultant from CPF are transported from the fractures which cleans up the well.
摘要翻译： 当从脉冲装置释放能量时，通过产生泡沫来增强受控脉冲压裂处理（“CPF”）的有效性。 在井眼流体中由发泡剂产生的泡沫增加了所述流体的表观粘度并控制了流体损失。 增加的粘度导致额外的裂缝扩展。 在开始生产含烃流体时，从CPF产生的细屑和碎屑从破裂井的裂缝中运送。
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29.发明授权
公开(公告)号：US5513706A
公开(公告)日：1996-05-07
申请号：US436899
申请日：1995-05-08
IPC分类号： E21B7/04 , E21B43/02 , E21B43/30 , E21B33/138 , E21B43/04
CPC分类号： E21B43/305 , E21B43/025 , E21B7/04
摘要： Formation stability surrounding a deviated wellbore penetrating a hydrocarbon reservoir is improved by alternately injecting higher and lower density consolidating materials, the higher density material improving stability in the formation primarily on the low side of the wellbore and the lower density material improving stability in the formation primarily on the high side of the wellbore.
摘要翻译： 通过交替地注入高密度和低密度的固结材料来改善穿过烃储层的偏斜井眼的形成稳定性，主要在井眼的低侧上形成较高密度的材料，主要在井筒的低侧提高地层中的稳定性， 在井筒的高处。
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公开(公告)号：US5484231A
公开(公告)日：1996-01-16
申请号：US158333
申请日：1993-11-29
CPC分类号： E21B41/0057 , B09B1/008 , B09B3/00
摘要： A process for obtaining decomposition products from a slurry of municipal waste by use of a geothermal reservoir. The process comprises placing the slurry of municipal waste into a geothermal reservoir; sealing the opening of the geothermal reservoir; and retorting the municipal waste slurry in the geothermal reservoir for a time sufficient to liberate methane, ammonia, urea, nitrites, nitrates, and phosphates from said slurry. Thereafter, the liberated products are removed from the geothermal reservoir and separated.
摘要翻译： 一种通过使用地热储层从城市垃圾浆液中获得分解产物的方法。 该方法包括将城市垃圾的浆料放入地热储层; 密封地热储层的开口; 并且将地热储存器中的城市废物浆料蒸馏一段时间，以足以从所述浆料中释放出甲烷，氨，尿素，亚硝酸盐，硝酸盐和磷酸盐。 此后，将释放的产品从地热储存器中取出并分离。
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