well test design and analysis - · pdf filethere are a wide range of different types of test,...

HAGI REGULAR COURSE 2013

The Indonesian Association of Geophysicistswww.hagi.or.id

13 -17 May 2013 (5-days) Medan, Indonesia

Well Test Design and Analysis

Expert Course Trainer : I Nengah Suabdi & Arief Budiman

(PT. Pertamina EP)

Course fee : Rp 24.000.000 (Member)

Rp 25.000.000 (Non-Member)

(Includes: Lunch & Coffee Break, Course Material, Course Kit, Certificate, Photo Group)

COURSE OBJECTIVE

Well test interpretation is the process of obtaining information about a reservoir through

analyzing the pressure transient response caused by a change in production rate.

This information is used to make decisions about how to produce the reservoir to

maximize its net present value (NPV). There are a wide range of different types of test, as

well as a number of different ways of categorizing well tests. Tests may be classified by

the way in which they are carried out, whether they involve one or multiple wells, whether

the test is run by opening up a well for production or shutting in a producing well,

whether the well is used for production or injection, and weather the well is an

exploration well or a well in a mature field.

The different well test designs consist of:?Deliverability tests?Transient tests?Multiple test?Single well test?Buildup test?Drawdown test

In the industry, wells could be classified by their stages which are the exploration and

development stages. For a well test on an exploration well, the focus is on the entire

reservoir. Objectives of an exploration well test usually include fluid sampling,

estimating initial reservoir pressure, evaluating well productivity, estimating distances

to boundaries, and estimating fluids in place. Exploration well tests often must be

conducted while the rig is on location, making such tests extremely expensive. The

expense is justified by the major investment decisions that will be made based on the

information obtained from the test.

In contrast, in development well testing, the focus is on the individual well and the near-

wellbore area. Objectives of a well test on a development well might include estimating

average drainage area pressure, evaluating stimulation treatment effectiveness,

quantifying wellbore damage, and estimating reservoir permeability. Compared to

exploration well tests, development well tests are relatively inexpensive. The results of

development well tests are used in minor investment decisions such as whether or not

to do a stimulation treatment.

Well Test Design and Analysis13-17 May 2013 (5-days), Medan, Indonesia

Learn more about us, please visit www.hagi.or.id or send email to [email protected] and [email protected]

This 5 day course will provide a practical introduction to the design and analysis of pressure transient well tests. Students will be introduced to the basic mathematics and theory of well testing, however emphasis is on the practical interpretation and design of well tests for both oil and gas wells and injection wells.

Following the course, students will learn the knowledge to:

? Design well tests and specify equipment requirements and procedures

? To check and observe the quality of well test data and correct or discard "bad" data

? Analyze well tests for production and injection wells using classical and computer aided methods

? Identify wellbore and reservoir effects and choose the correct model for evaluation and desig

? Understand the terminology and basic theory of well testing to keep abreast of future developments in well testing

COURSE CONTENTS

Day 1?Introduction to Well Testing?Applications of well testing?Well test Interpretation Methods

? Rock and Properties?Rock properties classifications?Fluid Properties?Compressibility

?Fluid Flow in Porous Media?Darcy's Law?Equation of State for a Slightly Compressible Liquid?Diffusivity Equation?Radius of Investigation

Day 2?Radial Flow Semilog Analysis?Drawdown Test?Buildup Test?Multirate Test

? Log-Log Type Curve Analysis?Dimensionless Variables?Gringarten-Bourdet Type Curves?Manual Parameter Estimation Using The Log-Log Plot



Day 3

?Pressure Transient Testing for Gas Wells?Gas Drawndown Test?Gas Build Up Test

? Flow Regimes and the Diagnostic Plot?Radial Flow?Linear Flow?Spherical Flow?Volumetric Behavior?Wellbore Storage

?Work Session - Gas Well Tests?Analysis Methods?Examples

Day 4?Bounded Reservoir Behavior?Types of Boundary?Linear Boundaries?Circular Boundaries?Multiple Linear Boundaries

? Composite Resevoir Models?Infinite Radial?Linear Composite Resrvoir?Summary

Day 5?Special Well Tests?Drill Stea Tests?Interference Tests?Multilayer Well Tests?Horizontal Wells

? Oil and Gas Reserves Calculation?Volumetric?Material Balance

?Work Session - Special Tests?Analysis Methods?Examples



ABOUT THE INSTRUCTOR

Ir. I Nengah Suabdi Ph.D is a Senior Reservoir Engineer of PT Pertamina EP. He was retired

from Pertamina EP since Oktober 2011 as General Manager Unit Bisnis EP Ramba (UBEP

Ramba), but he still working for Pertamina EP as a Well Testing Coordinator and responsible

for designing, evaluating and reporting Drill Stem Test (DST) for exploration Wells.

He holds Bachelor Degree (BS) from UPN Veteran Yogyakarta (1986), and Master –Degree (MS)

from Bandung Institute of Technology (1995) and Doctor Degree (Ph.D) from Texas A&M

University, College Station Texas (2001) all in Petroleum Engineering. He starts Join

Pertamina-EP in 1989 as Yunior Engineer in Pendopo Field South Sumatra. In 1993 until 2001

Pertamina sent him to pursue Master (MS) degree in ITB and Ph.D degree in TAMU College

Station, Texas. He then Join with Pertamina EP Technology Support for 4 years before then

move to Pertamina EP Region Sumatra in Prabumulih as Development Manager and Senior

Manager Engineering (MSE) Pertamina EP region Sumatra. He currently join with Pertamina-

EP as Well Testing Expert in Pertamina EP Jakarta.

He also a lecturer Reservoir and Production Engineering for Bachelor and Master degree in

Petroleum Engineering Universitas Trisakti Jakarta, and Join Lecturer in Reservoir

Engineering for Master Degree Total Indonesie Program from Physic Magister Program

(Department Fisika FMIPA) Universitas Indonesia.

Ir. Arief Budiman Graduated from Geology Department of Institut Teknologi Bandung in

1989. After 2 years working as coal explorasionist, he move to petroleum industry. In 1991-

2004 he was in Total Indonesie as Study Geologist an Operation Geologist coordinator (SOG).

Started from 2004 he was join to Pertamina as Operation geologist, and then Exploration

Manager.

INFORMATION AND REGISTRATION

Phone/Fax : (+62-21) 5250040

Email : [email protected]

[email protected]

Direct phone to : Yulia Caesariani ( +6285693475381)



HAGI REGULAR COURSE 2013 REGISTRATION FORM

Course Title : Integrated Reservoir Evaluation for Well Testing Feasibility

Dates : 06 – 10 May 2013

Venue : Medan, Indonesia

Instructor : Arief Budiman & I Nengah Suabdi

Course Registration Fee : (HAGI Member)* Rp. 24.000.000 /(HAGI Non-Member)*Rp. 25.000.000

*(Kindly (Rp/US$) registration fee appropriate flyer)

PARTICIPANT (Kindly complete the data)

Title : *Mr . /*Mrs

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Special Notifications : The Investment Fee includes meals (2x coffee break and lunch), course materials, course kits, group photograph, and certificate

(exclude hotel and tax). In order to allow sufficient time for arranging travel and processing document, participants are

recommended to make an early enrollment. Unless prior arrangements are made by HAGI, payment may be required well 14 days in

advance of the course date to guarantee your seat. Registration will be closed on 14 days before course date. Late enrollment may

result in course cancellation.

PAYMENT METHOD BY (Kindly √ appropriate square) :

Cash addressed to HAGI Secretariat Invoice, send addressed to :

Bank Transfer in full amount to : Himpunan Ahli Geofisika Indonesia

Bank BNI Cab. Menteng, Jakarta Pusat AC : Rupiah (Rp) 0010740147 /Dollar (US$) 0010740158

PLEASE FAX THIS FORM TO : +6221.5250040 or EMAIL : [email protected] & RECONFIRM YOUR REGISTRATION TO HAGI TRAINING CENTER, CP : Arida Chyntia Andriani Phone +6221.5250040 /Mobile +6281.288924225

Let’s register yourself right now!

HAGI Secretariat : Patra Office Tower, 20th Floor, Suite 2045

Jl. Jend. Gatot Subroto Kav. 32-34 Jakarta Selatan 12950, Indonesia

Phone/Fax : +6221.5250040

Visit our website : www.hagi.or.id

Cancellation, Subtitution & Non Attendance Policy : Tuition fees are transferable but not refundable. Notification is required to substitute another participant,

no later than 5 working days prior to the program, should the nominated person be unable to attend. Cancellation will only be considered, if being cancelled

at least 1 (one) week before course exhibited. Late cancellation will be charge 50% from the course fee.

mailto:[email protected]

http://www.hagi.or.id/

well test design and analysis - · pdf filethere are a wide range of different types of test,...

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