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公开(公告)号：US11008844B2
公开(公告)日：2021-05-18
申请号：US15772826
申请日：2015-11-02
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Chad Kraemer , Fedor Nikolaevich Litvinets , Sergey Vladimirovich Semenov , Mohan Kanaka Raju Panga , Maxim Pavlovich Yutkin , Ksenia Mikhailovna Kaprielova , Sergey Sergeevich Skiba , Bernhard Rudolf Lungwitz , Denis Viktorovich Bannikov
Abstract: A method of stimulating the inflow of oil and/or gas from the wellbore, in particular, a hydraulic fracturing method, is disclosed. The method of hydraulic fracturing comprises the stages: injecting a slug of a proppant-free fluid through the well into a formation for hydraulic fracture creation and propagation; injecting a slug of proppant-laden slurry into the formation to create a proppant pack in the hydraulic fracture; injecting a slug of slurry that contains a fluid and the polyelectrolyte complex-based proppant aggregates to create permeable channels in the near-wellbore area of the hydraulic fracture; injecting a slug of a displacement fluid into the well. This sequence of operations allows avoiding the proppant slurry overdisplacement deep into the hydraulic fracture, maintaining high fracture conductivity, and increasing the well productivity.
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Patent Agency Ranking
公开(公告)号：US20190218898A1
公开(公告)日：2019-07-18
申请号：US16314220
申请日：2016-07-01
Applicant: Schlumberger Technology Corporation
Inventor： Sergey Vladimirovich Semenov , Anatoly Vladimirovich Medvedev , Fedor Nikolaevich Litvinets
Abstract: A method is provided for detecting hydraulic fractures positions during multistage reservoir stimulation. Fracturing fluid is injected into a well at a pressure above the fracturing pressure to produce at least one hydraulic fracture. After this, a marker slug is injected into the well. Further, the fracturing fluid is re-injected into the well. When the marker slug enters at least one of the hydraulic fractures, a detectable pressure response is observed, and the position of a hydraulic fracture is detected from the volume of fracturing fluid injected after injection of the marker slug. The marker slug is a slug (portion) of fluid differing in the viscosity and/or density from the fracturing fluids injected before and after the marker slug.In other embodiments, the method for detecting a hydraulic fracture position is combined with other well operations, for example, with plugging of at least one hydraulic fracture or placement of at least one new hydraulic fracture.
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3.发明授权公开(公告)号：US10030495B2
公开(公告)日：2018-07-24
申请号：US14628435
申请日：2015-02-23
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Fedor Nikolaevich Litvinets , Andrey Vladimirovich Bogdan , Sergey Mikhailovich Makarychev-Mikhailov , Oleg Medvedev , Alejandro Pena , Konstantin Mikhailovich Lyapunov , Alexander Vuacheslavovich Mikhaylov , Timothy M. Lesko , J. Ernest Brown , Dean M. Willberg , Ivan Vitalievich Kosarev , Anatoly Vladimirovich Medvedev , Jonathan Abbott , Alexander Alexandrovich Burukhin
Abstract: A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the material (24), and removing the filler material (24) to form open channels (26) around the pillars (28). The filler material can be dissolvable particles, initially acting as a consolidator during placement of the proppant in the fracture, and later dissolving to leave flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.
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公开(公告)号：US11753919B2
公开(公告)日：2023-09-12
申请号：US17757500
申请日：2019-12-19
Applicant: Schlumberger Technology Corporation
IPC: E21B43/267 , E21B43/26 , E21B47/06 , E21B49/00
CPC classification number: E21B43/267 , E21B2200/20
Abstract: The present disclosure relates to a method for stimulating a subterranean formation that includes performing an initial stimulation in a wellbore positioned within the subterranean formation to place a designed volume of a first proppant in fractures, determining a near wellbore fracture width of the fractures, determining an unpropped fracture length of the fractures based on a rock bending model, determining an unpropped fracture volume based on the unpropped fracture length and near wellbore width of the fractures and performing a second stimulation treatment to place a proppant in fractures in an amount equal to the unpropped fracture volume. This operation allows to restore the conductivity of fracture in the damaged zone.
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公开(公告)号：US11136869B2
公开(公告)日：2021-10-05
申请号：US16314220
申请日：2016-07-01
Applicant: Schlumberger Technology Corporation
Inventor： Sergey Vladimirovich Semenov , Anatoly Vladimirovich Medvedev , Fedor Nikolaevich Litvinets
Abstract: The positions of hydraulic fractures may be detected during multistage reservoir stimulation operations. Fracturing fluid is injected into a well at a pressure above the fracturing pressure to produce at least one hydraulic fracture. Then, a marker slug is injected into the well. Next, additional fracturing fluid is injected into the well. When the marker slug enters at least one of the hydraulic fractures, a detectable pressure response is observed, and the position of a hydraulic fracture may be detected from the volume of fracturing fluid injected after injection of the marker slug. The marker slug is a fluid that has a viscosity and/or density that is different from the fracturing fluids injected before and after the marker slug. This technique may be combined with other well operations, such as plugging at least one hydraulic fracture or creating at least one new hydraulic fracture.
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6.发明申请HYDRAULIC FRACTURING WITH PROPPANT PULSING THROUGH CLUSTERED ABRASIVE PERFORATIONS 审中-公开液压破碎通过聚集的磨料性能进行推动公开(公告)号：US20140262263A1
公开(公告)日：2014-09-18
申请号：US14350517
申请日：2012-10-11
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION , Services Petroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , Prad Research and Development Limited
Inventor： Alexey Yudin , Konstantin Mikhailovich Lyapunov , Fedor Nikolaevich Litvinets , Konstantin Burdin , Alejandro Pena
IPC: E21B43/267 , E21B29/00
CPC classification number: E21B43/267 , E21B29/00 , E21B43/114 , E21B43/26
Abstract: Well completion techniques are disclosed that combine the creation of perforation clusters created using abrasive-jet perforation techniques with hydraulic fracturing techniques that include proppant pulsing through the clustered abrasive jet perforations. Both the abrasive-jet perforation and hydraulic fracturing with proppant pulsing may be carried out through coiled tubing.
Abstract translation: 公开了完井技术，其结合了使用磨料喷射穿孔技术产生的穿孔团簇与水力压裂技术的组合技术，其中包括通过聚集的磨料射流穿孔的支撑剂脉冲。 磨料喷射穿孔和支撑剂脉动的水力压裂都可以通过连续油管进行。
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