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公开(公告)号：US20110108271A1
公开(公告)日：2011-05-12
申请号：US12914463
申请日：2010-10-28
摘要： Recovery of hydrocarbon fluid from low permeability sources enhanced by introduction of a treating fluid is described. The treating fluid may include one or more constituent ingredients designed to cause displacement of hydrocarbon via imbibition. The constituent ingredients may be determined based on estimates of formation wettability. Further, contact angle may be used to determine wettability. Types and concentrations of constituent ingredients such as surfactants may be determined for achieving the enhanced recovery of hydrocarbons. The selection can be based on imbibition testing on material that has been disaggregated from the source formation.
摘要翻译： 描述了通过引入处理液来提高来自低渗透性源的烃流体的回收。 处理流体可以包括一种或多种设计成通过吸入引起烃排出的构成成分。 构成成分可以基于地层润湿性的估计来确定。 此外，可以使用接触角来确定润湿性。 可以确定构成成分如表面活性剂的类型和浓度以实现增强的烃的回收。 选择可以基于对源地址分解的材料的吸收测试。
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公开(公告)号：US06915854B2
公开(公告)日：2005-07-12
申请号：US10775861
申请日：2004-02-10
IPC分类号： C09K8/70 , C09K3/00 , C09K7/02 , E21B43/26 , E21B43/263
CPC分类号： C09K8/703
摘要： A well treatment fluid composition that comprises a carrier fluid and an amphoteric surfactant, and optionally a viscosifying agent and proppant, is well suited for use in fracturing coal beds to stimulate methane production. The composition preferably is a foam that comprises a gas such as nitrogen or air. Preferably, the surfactant has the formula R—NH2—(CH2)n—C(O)OX wherein R is a saturated or unsaturated alkyl group having from 6-20 carbon atoms, n is from 2-6, and X is hydrogen or a salt forming cation.
摘要翻译： 包含载体流体和两性表面活性剂以及任选的增粘剂和支撑剂的良好处理流体组合物非常适用于压裂煤层以刺激甲烷生产。 组合物优选是包含气体如氮气或空气的泡沫体。 优选地，表面活性剂具有式<βin-line-formula description =“In-line Formulas”end =“lead”→R-NH 2 - （CH 2）2 其中R是饱和或不饱和的具有6个碳原子的烷基，其中R是饱和或不饱和的烷基， -20个碳原子，n为2-6，X为氢或形成盐的阳离子。
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公开(公告)号：US06660693B2
公开(公告)日：2003-12-09
申请号：US09925221
申请日：2001-08-08
IPC分类号： C09K300
CPC分类号： C09K8/94 , C09K8/035 , C09K8/584 , C09K8/602 , C09K8/68 , C09K8/703 , C09K8/74 , Y10S507/925
摘要： Methods are provided for increasing the production of hydrocarbons from shaly formations that contain adsorbed condensed hydrocarbon gases by treating such formations with dewatering compositions comprising surfactants that cause the surfaces of the formation to be or to remain oil-wet. The methods may be used in stimulation (acidizing or acid fracturing or hydraulic fracturing), remediation or workover, and in enhancing flow from natural fractures or from unstimulated formations.
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公开(公告)号：US20100096129A1
公开(公告)日：2010-04-22
申请号：US12253426
申请日：2008-10-17
申请人： Jerald J. Hinkel , Kevin W. England
发明人： Jerald J. Hinkel , Kevin W. England
IPC分类号： E21B43/22
CPC分类号： E21B43/16
摘要： A method is given for treating a wellbore to increase the production of hydrocarbons from a subterranean formation penetrated by a wellbore, involving a period of injecting into the formation an aqueous injection fluid having a different chemical potential than the aqueous fluid in the formation. If there is water blocking, an osmotic gradient is deliberately created to cause flow of water into the injected fluid; hydrocarbon is then produced by imbibition. If the pore pressure in the water-containing pores in the formation is too low, an osmotic gradient is deliberately created so that water flows from the injected fluid into the water-containing pores, increasing the pore pressure and facilitating hydrocarbon production by imbibition. The method may be repeated cyclically. A semipermeable membrane may be created to enhance the osmosis. Wetting agents may be used to influence imbibition.
摘要翻译： 给出了一种处理井筒以增加从井筒渗透的地层中产生烃的方法，其涉及向地层注入具有与地层中含水流体不同的化学势的水注入流体。 如果存在水分阻塞，则故意产生渗透梯度以引起水流入注入的流体; 然后通过吸入产生碳氢化合物。 如果地层含水孔中的孔隙压力太低，则有意地产生渗透梯度，使得水从注入的流体流入含水孔中，通过吸入增加孔隙压力并促进碳氢化合物生产。 该方法可以循环地重复。 可以产生半透膜以增强渗透。 润湿剂可用于影响吸入。
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公开(公告)号：US20100096128A1
公开(公告)日：2010-04-22
申请号：US12253406
申请日：2008-10-17
申请人： Jerald J. Hinkel , Kevin W. England
发明人： Jerald J. Hinkel , Kevin W. England
IPC分类号： E21B43/25
摘要： Recovery of hydrocarbon fluid from low permeability sources is enhanced by introduction of a treating fluid. The treating fluid may include one or more constituent ingredients designed to cause displacement of hydrocarbon via imbibition. The constituent ingredients may be determined based on estimates of formation wettability. Further, contact angle may be used to determine wettability. Types and concentrations of constituent ingredients such as surfactants may be determined for achieving the enhanced recovery of hydrocarbons.
摘要翻译： 通过引入处理液来提高来自低渗透源的烃流体的回收。 处理流体可以包括一种或多种设计成通过吸入引起烃排出的构成成分。 构成成分可以基于地层润湿性的估计来确定。 此外，可以使用接触角来确定润湿性。 可以确定构成成分如表面活性剂的类型和浓度以实现增强的烃的回收。
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公开(公告)号：US06192985B1
公开(公告)日：2001-02-27
申请号：US09216420
申请日：1998-12-19
申请人： Jerald J. Hinkel , Kevin W. England
发明人： Jerald J. Hinkel , Kevin W. England
IPC分类号： E21B4326
摘要： The present Invention relates to method to stimulate the production of hydrocarbons from a subterranean formation. In particular, the present Invention discloses and claims methods to enhance the removal of fracturing fluid from a fracture deliberately created in the formation, thereby increasing effective fracture length, and thereby increasing hydrocarbon production. The methods of the present Invention involve breaker schedules opposite conventional teaching—i.e., according to the Invention, the breakers are staged such that the fluid near the fracture tip breaks first creating a viscosity gradient which causes the fluid resident in the tip to move towards the wellbore where it is more easily removed. Preferred embodiments of the Invention involve the use of gas to foam the fluid in the early pumping stages to induce a density gradient, as well as the use of fibrous material in the latter pumping stages to stabilize the proppant pack as the energized fluid in the near-tip squeezes through the near wellbore region.
摘要翻译： 本发明涉及刺激从地层形成烃的方法。 特别地，本发明公开并要求提高从地层故意产生的裂缝中去除压裂液的方法，从而增加有效的裂缝长度，从而增加碳氢化合物产量。 本发明的方法涉及与传统教学相反的断路器时间表，即根据本发明，断路器被分级，使得破裂尖端附近的流体首先破裂，产生粘度梯度，这导致驻留在尖端中的流体向着 井筒更易于拆除。 本发明的优选实施方案涉及使用气体在早期泵送阶段中使流体发泡以引起密度梯度，以及在后一个泵送阶段中使用纤维材料以将支撑剂包作为近端的通电流体 -tip挤压穿过近井身区域。
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公开(公告)号：US08805616B2
公开(公告)日：2014-08-12
申请号：US12974229
申请日：2010-12-21
申请人： Jerald J. Hinkel , Dean Willberg , Markus Pagels
发明人： Jerald J. Hinkel , Dean Willberg , Markus Pagels
CPC分类号： E21B49/088 , C09K8/58 , E21B43/16 , G01N24/081 , G01N33/24
摘要： A method for determining a characteristic of an underground formation with a fluid is described. The method includes providing a sample material of the underground formation; measuring the permeability and the porosity of the sample material; performing a drainage test on the sample material using the fluid; estimating the threshold pressure of the sample material from the drainage test, the permeability and the porosity measurements; and determining the receding contact angle of the fluid on the sample material from the threshold pressure. The sample material can be disaggregated material.
摘要翻译： 描述了一种用流体确定地下地层特征的方法。 该方法包括提供地下地层的样品材料; 测量样品材料的渗透性和孔隙率; 使用流体对样品材料进行排水试验; 从排水试验估算样品材料的阈值压力，渗透率和孔隙度测量值; 以及从所述阈值压力确定所述样品材料上的所述流体的后退接触角。 样品材料可以是分解材料。
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公开(公告)号：US06720290B2
公开(公告)日：2004-04-13
申请号：US09969392
申请日：2001-10-02
IPC分类号： C09K300
摘要： A well treatment fluid composition that comprises a carrier fluid and an amphoteric surfactant, and optionally a viscosifying agent and proppant, is well suited for use in fracturing coal beds to stimulate methane production. The composition preferably is a foam that comprises a gas such as nitrogen or air. Preferably, the surfactant has the formula R—NH2—(CH2)n—C(O)OX wherein R is a saturated or unsaturated alkyl group having from 6-20 carbon atoms, n is from 2-6, and X is hydrogen or a salt forming cation.
摘要翻译： 包含载体流体和两性表面活性剂以及任选的增粘剂和支撑剂的良好处理流体组合物非常适用于压裂煤层以刺激甲烷生产。 组合物优选是包含气体如氮气或空气的泡沫体。 优选地，表面活性剂具有方解石R是具有6-20个碳原子的饱和或不饱和烷基，n为2-6，X为氢或形成盐的阳离子。
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9.发明授权公开(公告)号：US06283212B1
公开(公告)日：2001-09-04
申请号：US09298771
申请日：1999-04-23
申请人： Jerald J. Hinkel , Kevin W. England
发明人： Jerald J. Hinkel , Kevin W. England
IPC分类号： E21B4316
CPC分类号： E21B43/26 , C09K8/64 , C09K8/685 , Y10S507/921
摘要： The present Invention relates to hydrocarbon well stimulation, and more particularly to methods and compositions to remove (or more generally to transfer) fluid introduced into the subsurface. For instance, preferred methods involve creating then exploiting a capillary pressure gradient at the fracture face to induce fluid flow from the fracture into the formation thereby increasing effective fracture length, and then improving fracture conductivity.
摘要翻译： 本发明涉及烃井刺激，更具体地涉及去除（或更一般地转移）引入到地下的流体的方法和组合物。 例如，优选的方法包括创建裂缝面处的毛细管压力梯度以引起流体从裂缝流入地层，从而增加有效的断裂长度，然后提高断裂导电性。
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公开(公告)号：US20120151998A1
公开(公告)日：2012-06-21
申请号：US12974276
申请日：2010-12-21
申请人： Dean Willberg , Markus Pagels , Jerald J. Hinkel
发明人： Dean Willberg , Markus Pagels , Jerald J. Hinkel
IPC分类号： G01N15/08
摘要： A method of determining wettability of a rock sample, such as from a core sample is described. The sample is preferably crushed or comminuted to a particulate size where micro fractures have been eliminated, but where the particles are still large enough to represent the native rock matrix and texture. The comminuted core sample is exposed to a test fluid for a given period of time. The rock sample can be split into many separate aliquots, and a series of tests is performed using a series of different fluids and/or the same fluid for different exposure times. The excess test fluid residing on the surfaces of sample particles is removed. The test fluid imbibed into the interior of the particulate sample is then measured. The test fluid can be, for example, water, a non-aqueous fluid, and/or a solution of miscible solvents. The technique used to measure the imbibed fluid depends on the solvent (imbibing fluid) being studied. In one example, this technique includes both gravimetric determination and quantitative chemical analysis. The detection of water can be via Karl Fischer titration.
摘要翻译： 描述了一种确定岩样的润湿性的方法，例如来自核心样品。 样品优选被粉碎或粉碎成微粒，其中微裂纹已经被去除，但是其中颗粒仍然足够大以表示天然岩石基质和质地。 粉碎的芯样品暴露于测试流体一段给定的时间。 岩石样品可以分成许多单独的等分试样，并且使用一系列不同的流体和/或相同的流体进行不同曝光时间的一系列测试。 去除驻留在样品颗粒表面上的过量测试流体。 然后测量吸入颗粒样品内部的测试液。 测试流体可以是例如水，非水性流体和/或可混溶溶剂的溶液。 用于测量吸液的技术取决于正在研究的溶剂（吸液）。 在一个实例中，该技术包括重量测定和定量化学分析。 水的检测可以通过卡尔费休滴定。
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