Schlumberger Technology Corporation

Chevron U.s.a. Inc.

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Alexander F Zazovsky

Stephane Briquet

Christopher Del Campo

Pierre-Yves Corre

Raymond V Nold, Iii

Mark Milkovisch

Julian J Pop

Ricardo Vasques

Stephane Metayer

Fernando Garcia-Osuna

Carsten Sonne

Edward Harrigan

Jean-Louis Pessin

John C Rasmus

Jacques R Tabanou

Diankui Fu

Christopher N Fredd

Anthony R H Goodwin

Vladimir Vaynshteyn

Colin Longfield

Thomas H Zimmerman

Golchehreh Salamat

Bunker M Hill

Kambiz A Safinya

James E Brooks

Steven G Villareal

Reinhart Ciglenec

Wenbo Yang

Richard John Meehan

Albert Hoefel

Jean-Marc Follini

Andrew L Kurkjian

Brenden M Grove

Toru Terabayashi

Dmitriy Ivanovich Potapenko

Jonathan Webster Brown

Paul Simon Hammond

Nathan Mathew Landsiedel

Anthony Robert Holmes Goodwin

Masafumi Fukuhara

Philippe Hocquet

Jaideva C Goswami

Philip Kneisl

Alfredo Fayard

Pierre Henri Campanac

Mark C Duhon

Ramon Hernandez-Marti

Stephen Yeldell

Steve Ervin

Darya Aleksandrovna Mustafina

Timur Zharnikov

Jian Zhou

Anthony Goodwin

John Sherwood

James Curtis Brannigan

Olga Petrovna Alekseenko

Simon Ross

Alexander Petrovich Skibin

Qing Yao

Keith A Burgess

Mark H Fraker

Nicholas Ellson

Jese C Lee

Grace Yue Qiu

Steve G Villareal

Grzegorz Jan Kusinski

Patrick J Fisseler

Seth Thomas Taylor

Kenneth L Havlinek

Luis Phillipe Costa Ferreira Tosi

Dmitry Ivanovich Potapenko

Nathan Church

Adinathan Venkitaraman

Sammy S Haddad

Colin Atkinson

Thomas W Palmer, Ii

Kathiravane Tingat Cody

Ray Nold, Iii

Vadim Akhmadikin

Andres Zoldi

Leslie Douglas Munson

Miroslav Slapal

Franck B G Monmont

Jason Hueber

A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the pre-fracture propagation pressure of one of the two or more zones to facilitate fracturing of said one of the two or more zones. The pressure of the fracturing fluid is below the pre-fracture propagation pressure of any other non-treated zones of the two or more zones. The isolating of the treated zone is then performed. The fracturing process is then repeated for at least one or more non-treated zones of the two or more zones.

Method of fracturing multiple zones within a well using propellant pre-fracturing

A sampling assembly of a single packer assembly may have more guard drains than sampling drains. The single packer assembly having the sampling assembly may be deployed in a wellbore formed in a subterranean formation, and the single packer assembly may be deployed on a wireline cable or another deployment or conveyance. The number and the area of the sampling drains, the number and the area of the guard drains, and the positions of the sampling drains and the guard drains may be designed so that the guard drains which are operational may provide a fluid intake rate exceeding a predetermined threshold if one of the guard drains is congested and/or blocked.

Sampling assembly for a single packer

An optical fluid analyzer tool may have an evaluation flowline which receives a flow of fluid from a geotechnical formation and may have a cleanup flowline which receives another flow of fluid from the geotechnical formation. A flow routing system may be connected to the evaluation flowline and may be connected to the cleanup flowline. The flow routing system may establish isolated flow or commingled flow for the evaluation flowline and may establish isolated flow or commingled flow for the cleanup flowline. A sample chamber may be connected to the evaluation flowline and may be connected to the cleanup flowline. A first pump module may draw the fluid from the geotechnical formation, and an optical fluid analyzer connected to the cleanup flowline and the evaluation flowline may analyze the fluid.

Sampling tool with dual flowline architecture

A technique involves collecting formation fluids through a single packer. The single packer comprises an outer bladder with drains positioned in the outer bladder to obtain formation fluid samples. Features also may be incorporated into the single packer to limit sealing in the circumferential spaces between the drains and to provide a larger sampling surface than provided simply via the drain surface area.

System and method related to a sampling packer

An apparatus comprising first and second fluid intakes, a pump, and a sample chamber, may be positioned in a borehole penetrating a subterranean formation. A method of use thereof may comprise drawing fluid from the subterranean formation and into the first and second fluid intakes using the pump, discharging into the borehole at least a portion of the fluid drawn into the second fluid intake, and selectively diverting at least a portion of the fluid drawn into the first fluid intake to the sample chamber.

Single pump focused sampling

A tubular pipe adapted for transporting oil and water may be treated upon its interior surface to reduce frictional pressure of a multiphase oil/water mixture flowing through the pipe. The tubular pipe may have an interior wall and a central cavity. In some instances, the interior surface is provided with a first textured region being adapted for reducing the adhesive forces of transported oil along the interior wall. A second region upon the interior wall may be adapted for reducing the adhesive forces of water along the interior wall of the tubular pipe. In some applications, riblets may be provided upon the interior pipe wall to further reduce the frictional forces of fluid flowing through the central cavity of the pipe.

Method and apparatus for reducing fluid flow friction in a pipe

The examples described herein relate to methods and apparatus for cleanup prediction and monitoring. A disclosed method of predicting cleanup of a sample fluid obtained by a downhole tool includes drawing the sample fluid into the downhole tool via a probe assembly; measuring optical densities of the sample fluid at a plurality of different respective times; selecting at least some of the measured optical densities as fitting points; identifying one or more inversion parameters; and performing, via a processor, an inversion using the fitting points, the inversion parameters and simulation data to generate data associated with a predicted cleanup of the sample fluid.

Cleanup prediction and monitoring

A technique involves collecting formation fluids through a single packer having at least one drain located within the single packer. The single packer is designed with an outer structural layer that expands across an expansion zone to facilitate creation of a seal with a surrounding wellbore wall. An inflatable bladder can be used within the outer structural layer to cause expansion, and a seal can be disposed for cooperation with the outer structural layer to facilitate sealing engagement with the surrounding wellbore wall. One or more drain features are used to improve the sampling process and/or to facilitate flow through the drain over the life of the single packer.

Single packer system for fluid management in a wellbore

The method of a mud cake thickness determination provides sending short high-frequency signals into a formation from at least two positions located at different distances from the mud cake and recording arrival times of reflected echo signals. The mud cake thickness is determined based on the time measured.

Method for a mud cake thickness determination

Methods and apparatuses for evaluating a fluid from a subterranean formation of a wellsite via a downhole tool positionable in a wellbore penetrating a subterranean formation are provided. The apparatus relates to a downhole tool having a probe with at least two intakes for receiving fluid from the subterranean formation. The downhole tool is configured according to a wellsite set up. The method involves positioning the downhole tool in the wellbore of the wellsite, drawing fluid into the downhole tool via the at least two intakes, monitoring at least one wellsite parameter via at least one sensor of the wellsite and automatically adjusting the wellsite setup based on the wellsite parameters.

Formation evaluation system and method

An arrangement having a body with at least one drain provided in the body is disclosed. The drain is configured to receive fluid when the body is expanded from a first unexpanded condition to a second expanded condition. At least one flowline is connectable to the drain. A screen is positioned over the drain and is configurable to expand from the first unexpanded condition to the second expanded condition.

Expandable filtering system for single packer systems

A method for sampling fluid in a subterranean formation includes reducing a viscosity of the fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of the fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurized by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.

Methods and apparatus to sample heavy oil in a subterranean formation

Modular pumpouts and flowline architecture are described. An example apparatus includes a downhole tool to sample fluid from a subterranean formation, and a plurality of fluidly coupled pump modules disposed on the downhole tool. Each of the pump modules includes: a pump having a pump inlet and a pump outlet, where the pump inlet is coupled to a first flowline; a first valve assembly having first, second and third ports, wherein the first port is coupled to the first flowline, the second port is coupled to the pump outlet, and the third port is coupled to the first flowline; and a second flowline not fluidly coupled to the first valve assembly or the pump.

Modular pumpouts and flowline architecture

Cleanup monitoring and prediction in real time targeting estimation of pumpout volume versus final contamination, including detecting breakthrough of formation fluid to a sampling tool and detecting transition of cleanup regime from a predominantly circumferential cleanup regime to a predominantly vertical cleanup regime. Similar workflow can be employed for estimating contamination at the end of cleanup production for a given pumpout volume.

Cleanup production during sampling

Growing community of inventors

Houston, TX, United States of America

Alexander F Zazovsky