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公开(公告)号：US20190322922A1
公开(公告)日：2019-10-24
申请号：US16474186
申请日：2017-12-19
Applicant: SHELL OIL COMPANY
Inventor： Alexei Alexandrovich SAVITSKI , Phillip Scott FAIR
Abstract: A method to provide fractures in a formation includes providing a wellbore in the formation and providing a casing in the wellbore. The method also includes providing communication between an inside of the casing and the formation and initiating a fracture from the communication between the inside of the casing and the subterranean formation. The method further includes propagating the fracture with a fluid comprising mortar slurry. Prior to propagating the fracture with a fluid comprising mortar slurry, a fluid comprising acid is injected into the formation through the communication between the inside of the casing and the formation.
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公开(公告)号：US20150083405A1
公开(公告)日：2015-03-26
申请号：US14495487
申请日：2014-09-24
Applicant: Shell Oil Company
CPC classification number: E21B43/26 , E21B47/0002 , E21B47/06
Abstract: A method including providing sensors in injection and observation wells; increasing pressure within the injection well until a fracture extends from an initiation location through a portion of a subterranean formation to an intersection location in the observation well, wherein increasing pressure within the injection well comprises introducing fluid into the injection well; obtaining a measurement indicative of fracture initiation from the first sensor; determining a height of the fracture at the injection well; obtaining a measurement indicative of fracture intersection from the second sensor; determining a volume of fluid introduced between the fracture initiation and the fracture intersection; determining a distance between the initiation location and the intersection location; determining a time lapse between the fracture initiation and the fracture intersection; and using the determined values, calculating a hydraulic fracturing characteristic.
Abstract translation: 一种包括在注入井和观测井中提供传感器的方法; 在注射井内增加压力，直到断裂从起始位置延伸穿过地下地层的一部分到观察井中的交叉位置，其中注入井内的增加的压力包括将流体引入注入井中; 从第一传感器获得指示断裂发生的测量值; 确定注射井的骨折高度; 从所述第二传感器获得表示断裂交叉点的测量值; 确定在断裂起始和断裂交点之间引入的流体的体积; 确定起始位置和交叉点位置之间的距离; 确定断裂起始和断裂交点之间的时间流逝; 并使用确定的值，计算水力压裂特性。
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公开(公告)号：US20210131273A1
公开(公告)日：2021-05-06
申请号：US16671720
申请日：2019-11-01
Applicant: SHELL OIL COMPANY
Inventor： Alexei Alexandrovich SAVITSKI , Phillip Scott FAIR
Abstract: A system and method for determining near-wellbore fracture characteristics of an isolated portion of a hydraulically fractured well are provided. A valve located in a string extending to the isolated portion of the well is utilized to reduce the wellbore storage effects of fluid in the string on pressure measurements within the isolated zone of the wellbore.
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