公开(公告)号：US10119378B2

公开(公告)日：2018-11-06

申请号：US14639770

申请日：2015-03-05

Applicant: Schlumberger Technology Corporation

Inventor： Timothy Lesko ,  Hariharan Ramakrishnan ,  Dmitriy Potapenko ,  Leland Ramsey

IPC: E21B43/26 ,  E21B47/06 ,  E21B17/20 ,  E21B34/00

Abstract: The disclosure pertains to methods for completing a well may comprise lowering a coiled-tubing in the well thus forming an annulus between the casing and the coiled-tubing, pumping down said annulus a treatment fluid above the fracturing pressure of the formation while also pumping fluid through the coiled tubing. The methods may also comprise monitoring in real-time the bottom hole pressure and increasing the pump rate through the coiled-tubing if an increase of bottom hole pressure is observed.

公开(公告)号：US20140262291A1

公开(公告)日：2014-09-18

申请号：US13833190

申请日：2013-03-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Yiyan Chen ,  Anthony Loiseau ,  Hariharan Ramakrishnan

IPC: E21B43/26

CPC classification number: E21B43/267 ,  E21B43/261

Abstract: A system includes a first fluid comprising a viscosified fluid composed to generate an initial fracture geometry, a first spacer fluid, a second fluid being a high solids content fluid (HSCF) having a fine particle formulation, a third fluid being an HSCF having a coarse particle formulation, a second spacer fluid, a conventional proppant slurry fluid, and a flush fluid. The system includes a positive displacement pump fluidly coupled to a wellbore, the wellbore intersecting a formation of interest, and a controller that executes functions to perform complex fracture generation in the formation of interest. The controller provides pump commands to deliver a number of stage groupings to the formation of interest, each stage grouping including the first fluid, the first spacer fluid, the second fluid, the third fluid, and the second spacer fluid.

Abstract translation: 一种系统包括第一流体，其包括构成以产生初始断裂几何形状的粘稠流体，第一间隔流体，具有细颗粒配方的高固含量流体（HSCF）的第二流体，第三流体是具有粗糙的HSCF 颗粒配方，第二间隔液，常规支撑剂淤浆流体和冲洗流体。 该系统包括流体耦合到井眼的容积式泵，井眼与感兴趣的地层相交，以及控制器，其执行功能以在感兴趣的形成中执行复杂的裂缝产生。 所述控制器提供泵命令以将多个阶段分组递送到感兴趣的形成，每个阶段分组包括第一流体，第一分隔流体，第二流体，第三流体和第二分隔流体。

公开(公告)号：US20160258264A1

公开(公告)日：2016-09-08

申请号：US14639770

申请日：2015-03-05

Applicant: Schlumberger Technology Corporation

Inventor： Timothy Lesko ,  Hariharan Ramakrishnan ,  Dmitriy Potapenko ,  Leland Ramsey

IPC: E21B43/26 ,  E21B34/12 ,  E21B43/14 ,  E21B47/06

CPC classification number: E21B43/26 ,  E21B17/20 ,  E21B47/06 ,  E21B2034/007

Abstract: The disclosure pertains to methods for completing a well comprising lowering a coiled-tubing in the well thus forming an annulus between the casing and the coiled-tubing, pumping down said annulus a treatment fluid above the fracturing pressure of the formation while also pumping fluid through the coiled tubing; monitoring in real-time the bottom hole pressure, increasing the pump rate through the coiled-tubing if an increase of bottom hole pressure is observed.

Abstract translation: 本公开涉及完成井的方法，包括降低井中的盘管，从而在壳体和盘管之间形成环形空间，将所述环形空间泵送在地层压裂压力以上的处理流体，同时还泵送流体 连续油管; 实时监测井底压力，如果观察到井底压力增加，则通过螺旋管道提高泵速。