公开(公告)号：US10787745B2

公开(公告)日：2020-09-29

申请号：US15533315

申请日：2015-10-19

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Evgeny Borisovich Barmatov ,  Jill F. Geddes ,  Lynne Patricia Crawford ,  Trevor Lloyd Hughes ,  Michaela Nagl-Vogel

IPC: C23F11/00 ,  C23F11/08 ,  C23F11/10 ,  C23F11/12 ,  C23F11/16 ,  C23F11/173 ,  C23F11/04 ,  C09D7/63 ,  C09K8/54 ,  C23F11/14 ,  C09D5/08

Abstract: A corrosion inhibiting composition which is a liquid carrier in which is dissolved or dispersed a corrosion inhibitor compound comprising at least one moiety (A) which is an aliphatic, aromatic or mixed aliphatic/aromatic structure containing one or more hetero atoms which are nitrogen, oxygen, phosphorus or sulphur, and also at least one moiety (B) which contains one or more polymerisable groups containing double or triple bonded carbon, with the moieties (A) and (B) directly or indirectly covalently connected together.

公开(公告)号：US20170240796A1

公开(公告)日：2017-08-24

申请号：US15508512

申请日：2015-08-26

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Evgeny Borisovich Barmatov ,  Trevor Lloyd Hughes ,  Jill F. Geddes

IPC: C09K8/54 ,  C23C22/40 ,  E21B43/25 ,  C25D11/00 ,  E21B41/02 ,  C23F11/04 ,  C23C22/73

Abstract: A method of inhibiting corrosion of duplex stainless steel by aqueous acidic solution, comprises carrying out a preliminary treatment which is passivation of the steel while exposing the steel to a first aqueous acidic solution containing at least one organic corrosion inhibitor able to adsorb to a steel surface, so as to deposit a passivating and corrosion inhibiting film on the steel surface; and thereafter during a second period of time exposing the steel to a second aqueous acidic solution different from the first aqueous acidic solution and also containing at least one organic corrosion inhibitor able to adsorb to a steel. The second aqueous acidic solution maintains the film on the steel surface, such that weight loss through corrosion in the second period of time is lower than the weight loss which would be observed with the same second aqueous acidic solution but without carrying out the preliminary treatment.

公开(公告)号：US20150152321A1

公开(公告)日：2015-06-04

申请号：US14620979

申请日：2015-02-12

Applicant: Schlumberger Technology Corporation

Inventor： Zinaida Yurievna Usova ,  Anna Petrovna Dunaeva ,  Mohan K.R. Panga ,  Anatoly Vladimirovich Medvedev ,  Sergey Makarychev-Mikhailov ,  Evgeny Borisovich Barmatov ,  Trevor Lloyd Hughes

IPC: C09K8/80 ,  E21B43/24 ,  E21B43/267

CPC classification number: C09K8/80 ,  C09K2208/08 ,  E21B43/2405 ,  E21B43/267

Abstract: A method for forming proppant aggregates, for example downhole in an injection well, includes injecting a slurry including a thermo-responsive polymer with a low critical solution temperature and a proppant downhole, and heating the slurry above the low critical solution temperature of the polymer. The heating of the slurry above the low critical solution temperature of the polymer aggregates the proppant. A composition of the slurry includes a carrier fluid including a thermo-responsive polymer, a proppant, and optional additives.

Abstract translation: 用于形成支撑剂聚集体的方法，例如在注入井中的井下，包括将包含具有低临界溶解温度的热响应聚合物和支撑剂的浆料注入井下，并将该浆料加热到聚合物的低临界溶解温度以上。 高于聚合物低临界溶液温度的浆料的加热使支撑剂聚集。 浆料的组合物包括载体流体，其包括热响应聚合物，支撑剂和任选的添加剂。

公开(公告)号：US20130244912A1

公开(公告)日：2013-09-19

申请号：US13889470

申请日：2013-05-08

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Trevor Lloyd Hughes ,  Evgeny Borisovich Barmatov ,  Jill F. Geddes ,  Michael J. Fuller ,  Bruno Drochon ,  Sergey Makarychev-Mikhailov

IPC: C09K8/66

CPC classification number: C09K8/665 ,  C09K8/70 ,  C09K8/92 ,  E21B43/267

Abstract: A wellbore fluid is an aqueous carrier liquid with first and second hydrophobic particulate materials suspended therein. The first hydrophobic particles have a higher specific gravity than the second hydrophobic particles and the fluid also comprises a gas to wet the surface of the particles and bind them together as agglomerates. The fluid may be a fracturing fluid or gravel packing fluid and the first particulate material may be proppant or gravel. The lighter second particulate material and the gas both reduce the density of the agglomerates which form so that they settle more slowly from the fluid, or are buoyant and do not settle. This facilitates transport and placement in a hydraulic fracture or gravel pack. One application of this is when fracturing a gas-shale with slickwater. The benefit of reduced settling is better placement of proppant so that a greater amount of the fracture is propped open.

Abstract translation: 井筒流体是其中悬浮有第一和第二疏水性颗粒材料的水性载体液体。 第一疏水性颗粒具有比第二疏水性颗粒更高的比重，并且流体还包括用于润湿颗粒表面的气体并将其作为附聚物结合在一起。 流体可以是压裂流体或砾石填充流体，并且第一颗粒材料可以是支撑剂或砾石。 较轻的第二颗粒材料和气体都降低了附聚物的密度，使得它们从流体更缓慢地沉降，或者浮力并且不沉降。 这有助于运输和放置在水力裂缝或砾石包装中。 这种情况的一个应用是用瓦斯页岩压裂瓦斯页岩。 减少沉降的好处是支撑剂的更好的放置，使得更大量的裂缝被支撑开放。