公开(公告)号：US20150075797A1

公开(公告)日：2015-03-19

申请号：US14028039

申请日：2013-09-16

Applicant: Schlumberger Technology Corporation

Inventor： Li Jiang ,  Richard Hutchins ,  Murtaza Ziauddin ,  J. Ernest Brown ,  Syed A. Ali ,  Neil F. Hurley ,  John W. Still ,  Timothy G.J. Jones ,  Stephen Nigel Davies ,  Bruno Lecerf ,  Dmitriy Usoltsev

IPC: E21B43/26

CPC classification number: E21B43/283

Abstract: Rapidly pulsed injection fracture acidizing. A method comprises rapidly pulsed injection of a high reactivity fracture treatment fluid mode or substage alternated with one or more low reactivity treatment fluid modes or substages.

Abstract translation: 快速脉冲注射断裂酸化。 一种方法包括快速脉冲注射与一个或多个低反应性处理流体模式或分段交替的高反应性裂缝处理流体模式或分层。

公开(公告)号：US20130079260A1

公开(公告)日：2013-03-28

申请号：US13682296

申请日：2012-11-20

Applicant: Schlumberger Technology Corporation

Inventor： Wayne W. Frenier ,  Diankui Fu ,  Stephen Nigel Davies ,  Murtaza Ziauddin ,  Zhijun Xiao ,  Bruno Lecerf ,  Helene Bulte-Loyer

IPC: C09K8/72

CPC classification number: C09K8/74

Abstract: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

Abstract translation: 在处理由井眼渗透的含砂岩地层的方法中，形成包含基本上可溶于水性流体的含有布朗斯台德酸，氟化氢源及其有机酸或其盐的含水流体的处理流体。 处理液含有少于约2％的流体重量的氟化物（F-），和流体重量的2％或更少的钠（Na +）。 在引入处理流体之前，将处理流体作为单阶段通过井筒引入地层，而不将酸含量的流体预吹入地层中。