Pressure Transient Analysis Of Data From Permanent Downhole Gauges

Al-Buraikan, Meshal; Al-Hashim, Hasan S.; Issaka, M.B.; Al-Yousef, Hasan Y.

doi:10.2118/163723-ms

All Days 2013

DOI: 10.2118/163723-ms

|View full text |Cite

Pressure Transient Analysis Of Data From Permanent Downhole Gauges

Meshal Al-Buraikan

Hasan S. Al-Hashim

M.B. Issaka

et al.

Abstract: In recent years there has been a significant growth in the number of Permanent Downhole Measurement System (PDHMS) installations in oil and gas fields around the world, as PDHMS prices have been falling steadily and their reliability has also been increasing. However, the full benefits of this investment can only be realized when it is taken from simple surveillance and monitoring to a source for reservoir characterization. This study assesses the systems and workflows that have been put in plac… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2014

2018

Publication Types

Select...

Other5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 5 publications

References 16 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

Divergent and Convergent Thinking Approach: A More Integrated Method to Pressure Transient Analysis and Interpretation

et al. 2014

View full text Add to dashboard Cite

The significance of pressure transient analysis has grown over the years, as it has become a key source of subsurface information needed both for surveillance and effective reservoir management. However, it could be quite challenging especially in complex analysis and having an interpretation representative of the reservoir system could be daunting amidst widely varying uncertainties, data quality, limited geological and engineering data. It is therefore quite imperative that the analysis and interpretation approach be robust enough in order to give information that is representative of the reservoir in consideration. While the objectives for acquiring well test data in the first place varies over the life of a field, the interpretation methodology remains practically the same and it is the focus of this paper to give a more practical approach to PTA interpretation for a field at its developmental stage and help resolve one of the problems associated with PTA interpretation which is having a well defined, logical and consistent interpretation approach across different interpreters. This paper presents the application of a divergent thinking approach in well test analysis using multi scenario modeling and then following logical steps using all available geological and engineering data to converge to the most likely interpretation. The application of this approach is discussed using three different fields in the Niger Delta region of Nigeria as case studies which have been carefully selected from a field with little less than 2 years of consistent production (relatively new) to fields with an average production of about 25 years to reflect different level of understanding of the reservoir system based on available data. Analysis was carried out on well test data acquired from these fields using SAPHIR software by KAPPA. The results obtained show that regardless of what model were chosen, a relatively good model match can be obtained for the available data and except all available geological and engineering data are applied in an integrated manner, a non-representative model can be chosen for the said reservoir further leading to more uncertainties.

show abstract

Divergent and Convergent Thinking Approach: A More Integrated Method to Pressure Transient Analysis and Interpretation

et al. 2014

View full text Add to dashboard Cite

show abstract

Analysis of Reservoir Pressure Transients: A Wave Physics Approach

Ohazuruike

2014

All Days

View full text Add to dashboard Cite

This research work presents an investigation on a wave physics approach to pressure transient analysis. It is hinged on the view that a pressure transient phenomenon has an associated wave behaviour. A Reservoir pressure transient partial differential equation is developed by importing the pressure transient velocity into the general wave partial differential equation. The equation is then solved using the Boltzmann transformation. The resulting equation presents a mathematical definition of a reservoir pressure transient from a wave physics viewpoint. Spectral and Time Series plots of the model and field data predicted pressure transients are presented. Observation shows a similar trend in behaviour for both plots and discrepancies possibly due to reservoir heterogeneities, noise in data and the likelihood of a counterpressure effect from the restrictions.

show abstract

Real-Time Surface and Downhole Measurements and Analysis for Optimizing Production

2015

View full text Add to dashboard Cite

Permanent surface and downhole measurement technologies have advanced considerably in terms of availability, reliability, performance and costs, and are increasingly deployed for real-time monitoring of wells and equipment. Permanent downhole sensors are used to measure pressure, temperature, flow rates, fluid phases and to reflect operating conditions in wellbores. Surface sensor systems provide real-time measurements of pressure, temperature, fluid phases and flow rates that need to be integrated for analysis. The resulting large volume of data has created challenges in data management, evaluation and analysis. It is important that production analysts have access to workflows and tools that provide real-time efficient and effective visualization and analysis. The optimal approach is to perform the visualization and analysis of data in real time, or near real time, to provide analysts with actionable information for timely and accurate decision making. Permanent downhole gauges are used for monitoring reservoir drainage, injection efficiency, well-completion hardware performance, and downhole pump performance. Some of the resulting benefits include reduced operational costs, improved safety, and properly monitored well integrity. Several onshore and offshore case studies are discussed to demonstrate application of real-time measurements coupled with visualization and analysis techniques to also achieve improved artificial lift performance, reduced operating costs, and manage production. The value of the information obtained from downhole permanent gauges and surface measurements are justified as evidenced by the growing number of operators relying on real-time permanent gauges. This paper reviews technologies that are used to monitor and manage equipment and production in oil and gas wells. It explains that the realized value of permanent monitoring depends on an efficient workflow for collection, evaluation, and analysis.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Pressure Transient Analysis Of Data From Permanent Downhole Gauges

Cited by 5 publications

References 16 publications

Divergent and Convergent Thinking Approach: A More Integrated Method to Pressure Transient Analysis and Interpretation

Divergent and Convergent Thinking Approach: A More Integrated Method to Pressure Transient Analysis and Interpretation

Analysis of Reservoir Pressure Transients: A Wave Physics Approach

Real-Time Surface and Downhole Measurements and Analysis for Optimizing Production

Contact Info

Product

Resources

About