© 2014 Baker Hughes Incorporated. All rights reserved.

Disclaimer of Liability: This information is provided for general information purposes only and is believed to be accurate as of the date hereof; however, Baker Hughes Incorporated and its affiliates do not make any warranties or representations of any kind regarding the information and disclaim all express and implied warranties or representations to the fullest extent permissible by law, including those of merchantability, fitness for a particular purpose or use, title, non-infringement, accuracy, correctness or completeness of the information provided herein. All information is furnished “as is” and without any license to distribute. The user agrees to assume all liabilities related to the use of or reliance on such information. BAKER HUGHES INCORPORATED AND ITS AFFILIATES SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES FROM ANY CAUSE WHATSOEVER INCLUDING BUT NOT LIMITED TO ITS NEGLIGENCE.

40695 06/2014

Resultsnn Obtained critical information about fluid dynamics within the reservoir

nn Established right accurate pressure gradient information in a wellbore environment, unfeasible with wireline tools

nn Reduced uncertainties and decreased risks, achieving good sample quality in a single run

Challengesnn Deviated S-profile well

nn Establishing accurate individual pressure gradients over thin bed successions of variable mobility and different reservoir fluids

nn High level of invasion expected during clean-up and sampling operations

Baker Hughes solutionnn FASTrak service successfully recorded 60 pressure tests in a single run, breaking its own pressure testing record

nn Secured six representative fluid samples

nn SmartPad technology contributed to zero lost seals during pressure testing and sampling operations

nn Fewer rig days accounted for an estimated USD 2.2 million in savings

PetroVietnam Domestic Exploration Production Operating Company Ltd. (PVEP POC), working in offshore Vietnam, deployed the FASTrak™ logging-while-drilling (LWD) fluid analysis sampling and testing service while drilling a deviated S-profile well offshore Vietnam. Ordinarily, a well of this type would require pipe-conveyed wireline fluid sampling, adding rig days and increasing the risk of stuck pipe.

Challenges included establishing individual pressure gradients and collecting formation fluid samples over thin bed successions (centimeter to meter scale), with variable mobility, and potentially different reservoir fluids days after the well had initially been drilled. Additionally, inherent depth uncertainties in the measurements could affect the fluid gradient.

The excellent repeatability of the pressures enabled adjusting formation tops by reconciliation to pressure profiles. The reconciliation process could only be achieved by taking several pressure tests in a single run. Sixty tests were taken during the single run—an industry record among competing technologies in the marketplace.

The process enabled high-quality grading and a selection of representative sampling locations. The Baker Hughes SmartPad™ closed loop sealing system prevented lost seals during the pressure testing and sampling operation, enabling the acquisition of 6 oil samples. Lab analysis indicated approximately 15% water-based mud filtrate contamination, which was comparable to wireline runs in the same formation.

The operational efficiency and excellent sample quality achieved by this first deployment of the FASTrak service in the Southeast Asia market saved PVEP POC an estimated USD 2.2 million.

Baker Hughes Deploys FASTrak LWD Service to Break Pressure Testing Record, Saves Estimated USD 2.2 MillionLocation: Offshore Vietnam

CASE HISTORY| bakerhughes.com