公开(公告)号：US20240247584A1

公开(公告)日：2024-07-25

申请号：US18628906

申请日：2024-04-08

Applicant: Schlumberger Technology Corporation

Inventor： Harold Pfutzner ,  Mohammed Badri

IPC: E21B47/107 ,  G01F1/002 ,  G01F1/66 ,  G01F1/667 ,  G01F1/7082 ,  G01F1/712

CPC classification number: E21B47/107 ,  G01F1/662 ,  G01F1/667 ,  G01F1/7082 ,  G01F1/712 ,  G01F1/002

Abstract: An intelligent completion module includes a flowmeter that uses one or more electromagnetic acoustic transducer (EMAT) sensors and a flow control valve. The flow rate and the speed of sound in the production fluid from a production zone is measured and used to make reservoir management decisions. The flowmeter includes at least two EMAT rings, including one or more EMAT sensors in a circular distribution which can be used in propagation or pulse-echo modes. In a segregated flow regime, a single EMAT sensor in pulse-echo mode is used to measure holdups of fluid components.

公开(公告)号：US20230114341A1

公开(公告)日：2023-04-13

申请号：US18065687

申请日：2022-12-14

Applicant: Schlumberger Technology Corporation

Inventor： Harold Pfutzner ,  Bastian Sauerer

IPC: E21B49/10 ,  G01J3/44 ,  E21B47/017 ,  E21B47/01

Abstract: A downhole tool has a tool body with an outer diameter equal to a borehole diameter, at least one cavity formed in and opening to an outer surface defining the outer diameter of the tool body, a light source, a filter, and a light detector mounted in the at least one cavity, and a window disposed at the opening of the at least one cavity, wherein the window encloses the cavity.

公开(公告)号：US11530611B2

公开(公告)日：2022-12-20

申请号：US15978322

申请日：2018-05-14

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Harold Pfutzner ,  Bastian Sauerer

IPC: E21B49/10 ,  G01J3/44 ,  E21B47/01 ,  G01J3/12

Abstract: A downhole tool has a tool body with an outer diameter equal to a borehole diameter, at least one cavity formed in and opening to an outer surface defining the outer diameter of the tool body, a light source, a filter, and a light detector mounted in the at least one cavity, and a window disposed at the opening of the at least one cavity, wherein the window encloses the cavity.

公开(公告)号：US08866068B2

公开(公告)日：2014-10-21

申请号：US13728950

申请日：2012-12-27

Applicant: Schlumberger Technology Corporation

Inventor： Jani Reijonen ,  Luke Perkins ,  Harold Pfutzner

IPC: G01V5/00 ,  H01J27/20 ,  G01V5/08

CPC classification number: H01J27/205 ,  G01V5/085 ,  H01J1/3044 ,  H01J3/04 ,  H01J2201/30411

Abstract: An ion source for use in a particle accelerator includes at least one cathode. The at least one cathode has an array of nano-sized projections and an array of gates adjacent the array of nano-sized projections. The array of nano-sized projections and the array of gates have a first voltage difference such that an electric field in the cathode causes electrons to be emitted from the array of nano-sized projections and accelerated downstream. There is a ion source electrode downstream of the at least one cathode, and the at least one cathode and the ion source electrode have the same voltage applied such that the electrons enter the space encompassed by the ion source electrode, some of the electrons as they travel within the ion source electrode striking an ionizable gas to create ions.

Abstract translation: 用于粒子加速器的离子源包括至少一个阴极。 所述至少一个阴极具有纳米尺寸突起的阵列和邻近纳米尺寸突起阵列的门阵列。 纳米尺寸突起阵列和栅极阵列具有第一电压差，使得阴极中的电场使电子从纳米尺寸突起阵列发射并加速下游。 在至少一个阴极的下游存在离子源电极，并且至少一个阴极和离子源电极施加相同的电压，使得电子进入由离子源电极包围的空间中，一些电子就像它们 在离子源电极内行进进入可电离气体以产生离子。