公开(公告)号：US20180106139A1

公开(公告)日：2018-04-19

申请号：US15783697

申请日：2017-10-13

Applicant: Schlumberger Technology Corporation

Inventor： Andrei Alexandrovich Osiptsov ,  Dean Michael Willberg ,  Natalia Anatolievna Lebedeva ,  Jean Desroches ,  Sergei Andreevich Boronin

IPC: E21B43/267

CPC classification number: E21B43/267

Abstract: A fracturing fluid is injected under a high pressure into a well drilled in a formation to create a hydraulic fracture. Then a suspension of the hydraulic fracturing fluid mixed with proppant particles is injected into the well and the created hydraulic fracture, the suspension having a consistency coefficient greater than 0.1 Pa sn at any flow index n and a yield stress higher than 5 Pa. Then, an overflush fluid having a consistency coefficient lower than 0.01 Pa·sn is injected into the well.

公开(公告)号：US20170183951A1

公开(公告)日：2017-06-29

申请号：US15386225

申请日：2016-12-21

Applicant: Schlumberger Technology Corporation

Inventor： Sergei Andreevich Boronin ,  Andrei Alexandrovich Osiptsov

IPC: E21B43/267 ,  C09K8/62 ,  C09K8/80

CPC classification number: E21B43/267 ,  C09K8/62 ,  C09K8/80 ,  C09K2208/08

Abstract: To create stable conductive channels in propped fractures a first fracturing fluid free of proppant particles is injected into a wellbore and then a second fracturing fluid which is a suspension of proppant particles is injected into the wellbore. The second fluid possesses a yield stress and an aging behavior. A ratio of viscosity of the first fluid to viscosity of the second fluid is not less than 0.1. Then, a third fracturing fluid free of proppant particles is injected into the wellbore, a ratio of the viscosity of the first fluid to viscosity of the third fluid being not less than 0.1, and a ratio of densities of the first and the third fluid being from 0.8 to 1.2. The second fracturing fluid is re-injected into the wellbore, and then the third fracturing fluid is re-injected.

公开(公告)号：US20150107328A1

公开(公告)日：2015-04-23

申请号：US14513169

申请日：2014-10-13

Applicant: Schlumberger Technology Corporation

Inventor： Alexander Starostin ,  Andrei Alexandrovich Osiptsov

IPC: G01F25/00

CPC classification number: G01F1/74 ,  G01F15/024 ,  G01F15/12

Abstract: To improve the accuracy of multiphase mixture flow rate measurements, properties of a multiphase mixture are determined under conditions expected inside a pipeline and flow regimes are determined for the expected flow rates. Slug reducing parameters of the pipeline are provided at a pipeline section and a flowmeter is installed at the end of that pipeline section.

Abstract translation: 为了提高多相混合物流速测量的准确性，多相混合物的性质在管道内预期的条件下确定，并且为预期流速确定流动方案。 在管道部分提供管道减少参数，流量计安装在该管道段的末端。

公开(公告)号：US20180023350A1

公开(公告)日：2018-01-25

申请号：US15655995

申请日：2017-07-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Natalia Anatolievna Lebedeva ,  Andrei Alexandrovich Osiptsov ,  Dean Michael Willberg

IPC: E21B17/00 ,  E21B47/00

CPC classification number: E21B17/006 ,  B01D19/00 ,  B01D19/0063 ,  B01F3/04503 ,  B01F3/04531 ,  B01F5/0641 ,  B01F7/00558 ,  B01F7/00908 ,  B01F7/00916 ,  B01F2003/0035 ,  E21B47/00

Abstract: A method for preventing formation of a slug flow regime of a gas-liquid mixture in a non-linear wellbore or a pipeline comprises determining at least one most probable place of fluid slugs development in the wellbore or the pipeline by mathematical simulation based on expected values of the gas-liquid mixture flow and known geometry of the wellbore or the pipeline and mounting a device, in the determined place of fluid slug development, that converts the stratified gas-liquid mixture flow into a dispersed flow.

公开(公告)号：US20160312594A1

公开(公告)日：2016-10-27

申请号：US15133255

申请日：2016-04-20

Applicant: Schlumberger Technology Corporation

Inventor： Fikri John Kuchuk ,  Bertrand Theuveny ,  Andrei Alexandrovich Osiptsov ,  Kreso Kurt Butula

IPC: E21B43/26 ,  E21B34/12 ,  E21B43/267

CPC classification number: E21B43/267 ,  E21B43/17 ,  E21B2034/007

Abstract: The method for orienting hydraulic fractures in a subterranean formation comprises injecting a first fluid into a first horizontal wellbore penetrating the subterranean formation and open to the formation in at least one specified segment and pressurizing the first fluid in the first wellbore to create a stress field around each specified segment of the first wellbore. A second pressurized fracturing particle-laden fluid is simultaneously injected into a second horizontal wellbore open to the formation in at least one specified segment and vertically spaced apart from the first wellbore for inducing fractures propagating from the specified segments of the second wellbore towards the specified pressurized segments of the first wellbore.

Abstract translation: 用于定向地下地层中的水力裂缝的方法包括将第一流体注入穿透地下地层的第一水平井眼中，并且在至少一个指定的段中向地层开放，并对第一井眼中的第一流体加压以产生周围的应力场 每个指定的第一个井眼段。 第二加压压裂颗粒负载流体同时注入到在至少一个特定段中向地层开放并且与第一井眼垂直间隔开的第二水平井筒中，用于引导从第二井眼的指定段传播到特定加压 第一井眼的段。