公开(公告)号：US10472554B2

公开(公告)日：2019-11-12

申请号：US14893818

申请日：2014-05-22

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Helene Bulte-Loyer ,  Loic Regnault de la Mothe

IPC: E21B33/13 ,  C09K8/467 ,  C04B26/02 ,  C04B28/00 ,  C04B28/02 ,  C04B28/04 ,  C04B28/06 ,  C04B28/08 ,  C04B28/18 ,  C04B28/32 ,  C04B28/34 ,  C04B16/04 ,  E21B33/14 ,  C04B103/00

Abstract: A cement for use in wells in which hydrogen sulfide is present, comprises polymer particles. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the polymer particles swell when contacted by hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.

公开(公告)号：US20170174977A1

公开(公告)日：2017-06-22

申请号：US15127176

申请日：2015-03-26

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Helene Bulte-Loyer ,  Loic Regnault de la Mothe

IPC: C09K8/467 ,  C04B24/26 ,  E21B33/14 ,  C04B24/18 ,  C04B24/16 ,  C04B28/04 ,  C04B14/04

CPC classification number: C09K8/467 ,  C04B14/04 ,  C04B24/166 ,  C04B24/18 ,  C04B24/2605 ,  C04B24/2611 ,  C04B24/2676 ,  C04B28/02 ,  C04B28/04 ,  C04B2103/0045 ,  C04B2103/22 ,  C04B2103/408 ,  C04B2103/50 ,  C09K8/532 ,  C09K2208/20 ,  E21B33/14 ,  C04B24/2652

Abstract: A cement for use in wells in which hydrogen sulfide is present, comprises polymer particles. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the polymer particles swell when contacted by hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.

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。