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

IPC: E21B43/267 ,  C09K8/516 ,  C09K8/584 ,  C09K8/68 ,  C09K8/66 ,  C09K8/88 ,  C09K8/80

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.

公开(公告)号：US10421897B2

公开(公告)日：2019-09-24

申请号：US15780152

申请日：2015-11-30

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Sergey Sergeevich Skiba ,  Kira Vladimirovna Yudina ,  Maxim Pavlovich Yutkin ,  Bernhard Rudolf Lungwitz ,  Andrey Vladimirovich Yakovlev ,  Mohan Kanaka Raju Panga ,  Konstantin Viktorovich Vidma ,  Alexey Vladimirovich Alekseev ,  Chad Kraemer ,  Geza Horvath Szabo

IPC: E21B43/267 ,  E21B43/04 ,  C09K8/68 ,  C09K8/80 ,  C09K8/88 ,  C09K8/66

Abstract: This method is designed to facilitate the well treatment with the possibilities for non-uniform/heterogeneous proppant placement in the extended and branched fractures produced by hydraulic fracturing.The essence of the method is to inject a proppant-bearing gel into the wellbore drilled into a productive formation. The low-viscosity fracturing fluid is injected into the wellbore together with the gel fluid (simultaneously or in turns). The method also provides for the injection of gas into the proppant-bearing gel and/or the low-viscosity fluid. The gas can be injected upstream of the junction point, at the junction point, or downstream of the junction point of the flows of the proppant-bearing gel and the low-viscosity fluid. The method further provides for the division of the gel fluid into the separate agglomerates with their subsequent injection into the fractures in the subterranean formation to form the proppant structures in the fracture.

公开(公告)号：US20150144339A1

公开(公告)日：2015-05-28

申请号：US14553208

申请日：2014-11-25

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Sergey Semenov Vladimirovich ,  Mohan K.R. Panga ,  Geza Horvath Szabo ,  Maxim Pavlovich Yutkin ,  Ksenia Mikhailovna Kaprielova ,  Nikolay Borisovich Gorshkov

IPC: C09K8/80 ,  E21B43/267

CPC classification number: E21B43/267 ,  C09K8/56 ,  C09K8/60 ,  C09K8/70 ,  C09K8/80 ,  C09K8/887 ,  C09K8/92

Abstract: A method to improve fluid flow in a hydraulic fracture from a subterranean formation which includes the steps of (1) formulating a slurry which comprises (a) proppant particles, (b) a carrier fluid, and (c) low density particles, wherein the fluid is capable of undergoing a transformation to cause an agglomeration of two or more proppant particles and/or low density particles; and (2) injecting the slurry into the formation; and (3) the agglomeration of the proppant particles and/or low density particles, is provided.

Abstract translation: 一种改善地下水压裂缝中流体流动的方法，该方法包括以下步骤：（1）配制浆料，其包括（a）支撑剂颗粒，（b）载体流体和（c）低密度颗粒，其中 流体能够经历转化以引起两种或更多种支撑剂颗粒和/或低密度颗粒的团聚; 和（2）将浆料注入地层中; 和（3）提供支撑剂颗粒和/或低密度颗粒的聚集。