公开(公告)号：US09606260B2

公开(公告)日：2017-03-28

申请号：US13865839

申请日：2013-04-18

Applicant: Schlumberger Technology Corporation

Inventor： Youxiang Zuo ,  Adriaan Gisolf ,  Anthony Smits ,  Oliver C. Mullins

IPC: E21B49/08 ,  G01V8/10 ,  G01N33/28

CPC classification number: G01V8/10 ,  E21B49/088 ,  G01N33/2823

Abstract: A method for monitoring oil based mud filtrate contamination is provided including steps of analytically dividing a fluid stream into two parts, determining a gas/oil ratio for a native fluid determining an apparent gas/oil ratio for the contaminated fluid and determining on a volume fraction, an oil based contamination level based upon the gas/oil ratio for the native fluid and the apparent gas/oil ratio for the contaminated fluid.

公开(公告)号：US20150068734A1

公开(公告)日：2015-03-12

申请号：US14023390

申请日：2013-09-10

Applicant: Schlumberger Technology Corporation

Inventor： Anthony Smits

IPC: E21B47/10 ,  E21B49/08

CPC classification number: E21B49/10 ,  E21B2049/085

Abstract: Methods of evaluating a downhole fluid with a downhole tool. The downhole tool is positionable in a wellbore penetrating a subterranean formation, and has a probe positionable adjacent a wall of the wellbore and pumps, the probe having a sampling inlet and a contamination inlet to draw fluid from the formation into the downhole tool with the pumps. The methods involve pumping fluid into the downhole tool through the sampling inlet and the contamination inlet, varying the pumping of the fluid through the sampling inlet and the contamination inlet at a plurality of flow rates, measuring parameters of the fluid passing through the sampling inlet and the contamination inlet (the fluid parameters comprising optical density), and determining cleanup of contamination during sampling by examining changes in optical density of the fluid entering the sampling inlet at the flow rates.

Abstract translation: 使用井下工具评估井下流体的方法。 井下工具可定位在穿透地下地层的井眼中，并且具有可靠近井眼和泵的壁定位的探针，探针具有采样入口和污染物入口，以将流体从地层抽入井下工具，其中泵 。 所述方法包括通过采样入口和污染物入口将流体泵送到井下工具中，以多个流速改变通过采样入口和污染物入口的流体的泵送，测量通过采样入口的流体的参数， 污染物入口（流体参数包括光密度），并且通过检查以流速进入取样入口的流体的光密度的变化来确定取样过程中污染物的清除。

公开(公告)号：US10260338B2

公开(公告)日：2019-04-16

申请号：US13905136

申请日：2013-05-30

Applicant: Schlumberger Technology Corporation

Inventor： Anthony Smits

IPC: G01N33/00 ,  G01N21/27 ,  G01N35/00 ,  G01N33/28 ,  E21B49/10

Abstract: A fluid analyzer for a downhole tool positionable in a wellbore penetrating a subterranean formation is provided. The fluid analyzer includes an optical sensor positioned in the downhole tool to receive a downhole fluid therefrom. The optical sensor includes an optical cell to measure properties of the downhole fluid in a flowline of the downhole tool, and has a wavelength range. The fluid analyzer also includes a calibration fluid having a liquid that absorbs outside of the wavelength range, and a calibrator. The calibrator includes a fluid source housing the calibration fluid and at least one valve. The fluid source is operatively connectable to the optical sensor to provide the calibration fluid thereto whereby the calibration fluid is measureable by and calibratable to the optical sensor.

公开(公告)号：US20140352397A1

公开(公告)日：2014-12-04

申请号：US13905136

申请日：2013-05-30

Applicant: Schlumberger Technology Corporation

Inventor： Anthony Smits

IPC: E21B49/08

CPC classification number: E21B49/10 ,  G01N21/274 ,  G01N33/0006 ,  G01N35/00594 ,  G01N35/00693

Abstract: A fluid analyzer for a downhole tool positionable in a wellbore penetrating a subterranean formation is provided. The fluid analyzer includes an optical sensor positioned in the downhole tool to receive a downhole fluid therefrom. The optical sensor includes an optical cell to measure properties of the downhole fluid in a flowline of the downhole tool, and has a wavelength range. The fluid analyzer also includes a calibration fluid having a liquid that absorbs outside of the wavelength range, and a calibrator. The calibrator includes a fluid source housing the calibration fluid and at least one valve. The fluid source is operatively connectable to the optical sensor to provide the calibration fluid thereto whereby the calibration fluid is measureable by and calibratable to the optical sensor and.

Abstract translation: 提供了一种用于井下工具的流体分析器，其可定位在穿透地下地层的井眼中。 流体分析器包括位于井下工具中的光学传感器，以从其接收井下流体。 光学传感器包括用于测量井下工具的流线中的井下流体的特性的光学单元，并且具有波长范围。 流体分析仪还包括具有吸收波长范围外的液体的校准流体和校准器。 校准器包括容纳校准流体和至少一个阀的流体源。 流体源可操作地连接到光学传感器以向其提供校准流体，由此校准流体可被光学传感器测量并可校准。

公开(公告)号：US09752432B2

公开(公告)日：2017-09-05

申请号：US14023390

申请日：2013-09-10

Applicant: Schlumberger Technology Corporation

Inventor： Anthony Smits

IPC: E21B49/08 ,  E21B49/10

CPC classification number: E21B49/10 ,  E21B2049/085

Abstract: Methods of evaluating a downhole fluid with a downhole tool. The downhole tool is positionable in a wellbore penetrating a subterranean formation, and has a probe positionable adjacent a wall of the wellbore and pumps, the probe having a sampling inlet and a contamination inlet to draw fluid from the formation into the downhole tool with the pumps. The methods involve pumping fluid into the downhole tool through the sampling inlet and the contamination inlet, varying the pumping of the fluid through the sampling inlet and the contamination inlet at a plurality of flow rates, measuring parameters of the fluid passing through the sampling inlet and the contamination inlet (the fluid parameters comprising optical density), and determining cleanup of contamination during sampling by examining changes in optical density of the fluid entering the sampling inlet at the flow rates.

公开(公告)号：US20140316705A1

公开(公告)日：2014-10-23

申请号：US13865839

申请日：2013-04-18

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Youxiang Zuo ,  Adriaan Gisolf ,  Anthony Smits ,  Oliver C. Mullins

IPC: G01V8/10

CPC classification number: G01V8/10 ,  E21B49/088 ,  G01N33/2823

Abstract: A method for monitoring oil based mud filtrate contamination is provided including steps of analytically dividing a fluid stream into two parts, determining a gas/oil ratio for a native fluid determining an apparent gas/oil ratio for the contaminated fluid and determining on a volume fraction, an oil based contamination level based upon the gas/oil ratio for the native fluid and the apparent gas/oil ratio for the contaminated fluid.

Abstract translation: 提供了一种用于监测油基泥浆滤液污染物的方法，包括将流体流分解为两部分的步骤，确定用于确定污染流体的表观气/油比的天然流体的气/油比，并确定体积分数 ，基于天然流体的气/油比的油基污染水平和污染流体的表观气/油比。