All these examples show that diagnostic plots have some limitations but they are extremely helpful because they provide a unified approach for well test interpretation and are applicable in a wide. Well test design reservoir characterization schlumberger. Basic concepts in well testing for reservoir description patrick corbett hamidreza hamdi. The book covers transient well test behavior, descriptive and reservoir well testing, gas well testing, and the application of simultaneously recorded downhole rate and pressure measurements to well testing. Stepbystep introduction in well test analysis and methodology helps understand the functionality of specialised interpretation software. Pie software pie reader to read data from a piefile free. Significant time is spent on test design and prediction runs. Software for interpreting cardiopulmonary exercise tests. Paradigm interpret well test analysis software is used for the design and analysis of pressure transients, from either traditional production and drillstem tests dst, or from wireline formation tests wft and testingwhiledrilling twd operations, conducted on exploration, appraisal or production wells.
Dubai schlumberger has release geotesting geologybased well test design and interpretation services. We concentrate only on our proven areas of expertise. The conventional and modern well test interpretation methods are an important tool in the petroleum engineers toolkit. The well test which we will use in this program is the. The well test manager program is used to determine liquid and gas quantities from a series of wells using a test separator. This course will enable participants to understand the fundamental concepts of well test analysis. Well test analysis an overview sciencedirect topics. Well test analysis is a critical tool to understand well and reservoir performance. Basic surveillance spreadsheet for routine well test analysis free. Well test software tools help to undergo gas and oil well pressure transient. We created a computer software program xint that assists in cpet interpretation. Interpretation of both conventional and unconventional reservoirs. A standard test refers to the simplest form of transient test which assumes the analysis is linear. Spe member price usd 110 well test interpretation, which is the process of obtaining information about a reservoir by analyzing the pressure transient response caused by a change in production rate, plays a very important part in making overall reservoirmanagement decisions.
Make aqtesolv your choice for pumping test analysis software to get a complete package for constant and variablerate pumping tests, recovery tests, sinusoidal tests, singlewell tests, stepdrawdown tests, tests with multiple pumping wells, automatic image well generation, predictive simulation and pumping test design, and more. According to the well test interpretation, the average formation capacity is 415 md m and the average permeability is. Once fully familiar with the tools, well test analysis can be performed to recover the well and reservoir information from the data. Pressure buildup, injectionfalloff, multirate, multiple well, and closed chamber. Schlumberger releases new well test design, interpretation. It emphasizes the need for a controlled downhole environment and highperformance gauges both of which have made well testing a powerful reservoir description tool.
The interpretation software packages have been used for the preparation of the color figures. High resolution pressure versus time data derived from drill stem tests dst, production tests, permanent down hole gauges pdg, etc will be used for further analysis. A well test interpretation software program on the website link allows you to work with the example data yourself to learn more about how well test interpretation is. Interpret well test analysis with proven interpretation methods, powerful modeling capabilities, and an intuitive user interface. The program uses an integrative approach as recommended in the official statement of the american thoracic societyamerican college of chest physicians atsaccp on cardiopulmonary exercise testing. Pepta is a pressure transient analysis software for interpretation of pressure build up, draw downs and back pressure tests. The methodologies described in the course, which have become the standard of the industry, will present the systematic way of interpreting well tests. An integrated approach to well test interpretation is emphasized throughout the course. Overview this course stresses practical application of well test theory to design and interpret pressure transient tests. The well test interpretation and the statistics of dynamic and static data for typical wells in the tazhong i gas field are shown in table 3.
Well test analysis in horizontal wells is applied to find the reservoir parameters like permeability and skin factor and the result from the chosen methods will be compared to the result of some famous software like kappa saphir, pansystem, etc which are used in oil and gas industries. In spite of the beadlike reflections on the seismic profile, the reservoirs are mainly cave and fracturedvuggy types. Class exercises using adequate software will reinforce the concepts illustrated by both synthetic data sets and real field examples. A well test interpretation software program on the website link allows you to work with the example data yourself to learn more about how well test interpretation is achieved in practice windows xp and earlier only. We help you make the most of your well test with powerful software and decades of experience.
Well testing operations, interpretation and design res39. Ihs welltest software helps you conduct pressure transient analysis and serves as an everyday well test data interpretation and forecasting tool. Basic surveillance spreadsheet for routine welltest analysis free. The well test interpretation is performed by participants on numerous field examples using the two alternative commercial software packages. This course examines the fundamentals of well test interpretation for oil and gas wells. Well test interpretation wti is much more than pressure transient analysis pta. Welltest software helps you conduct gas and oil pressure transient analysis and serves as an everyday well test data interpretation tool. Saphir offers a comprehensive builtin analytical catalog combining well, reservoir and boundary models, complemented by external models. The book introduces streamline numerical well test interpretation software with independent intellectual property right which is programmed based on the above theoretical studies.
Well test interpretation design and analyze of pressure transients, from either traditional production,drill stem tests dst, injection and falloff including minifracture analysis and perforation inflow tests. Pdf understanding diagnostic plots for welltest interpretation. The data are captured during dedicated well test operations such as dsts or. Combined with our extensive portfolio of welltesting and production services equipment, we deliver actionable data. Saphir is the industry standard pta software, used by nearly all major iocs, nocs. Well test manager program user manual for roc800series. Dfitsminifracafterclosure analysis using fekete software. Welltest web wizard to help you do a test analysis. Used in the exploration and discovery phase of a field, they are performed to determine the quality of a well or to permit estimation of producing rates at different producing pressures. Basic relationships of well log interpretation introduction this chapter provides a general introduction to well logging principles and methods that will be used throughout the book. A standard windows user interface for data manipulation and display of analysis plots. Place for oil and gas students and professionals to learn well test analysis, the techniques and tools, including. Well test analysis is not about matching a derivative plot, but about exploring the rate and pressure data using all the well testing tools and plots derivative overlay, superposition and. To be able to use modern software to conduct the interpretation 5.
The objective of this project was to identify various methods for well test in horizontal wells. With the software provided welltest analysisdrawdownzz, vary the permeability k value to match the data and thus obtain the permeability of the formation. Test interpretation an overview sciencedirect topics. The pie welltest analysis program is a complete package for the manipulation and interpretation of pressure transient tests for oil and gas wells. Determine reservoir pressure, oil well productivity, gas well aof and deliverability, fluid flow. The pie well test analysis program is a complete package for the manipulation and interpretation of pressure transient tests for oil and gas wells. This course stresses practical application of well test theory to design and interpret pressure transient tests. Create a well test file using kappa saphir youtube. This well book summarizes the state of the art in well test interpretation.
The well testing tools derivative, superposition and production history plots are also presented, using the kappa saphir well test software. Learn how to build a well test file for an oil production well with a permanent downhole gauge and to quality check the production rate data. Well test types draw down open the well with constant rate decreasing bottom hole pressure. Most well tests consist of changing the rate, and observing the change in pressure caused by this change in rate. The dataplot will first help you with a qualitative interpretation, giving some indication on skin, permeabilitythickness and pressure support over time. Pressure transient well test design and interpretation. Streamline numerical well test interpretation 1st edition. Kappa trains and consults in dynamic data analysis. The dataplot will first help you with a qualitative interpretation, giving some indication on skin, permeabilitythickness and. Participants will be able to apply the knowledge and skills in their job assignments upon course completion. Wells are aligned to the test separator through a series of valves which can be operated manually or through automation.
Schlumberger releases new well test design and interpretation. Make aqtesolv your choice for pumping test analysis software to get a complete package for constant and variablerate pumping tests, recovery tests, sinusoidal tests, single well tests, stepdrawdown tests, tests with multiple pumping wells, automatic image well generation, predictive simulation and pumping test design, and more. Deconvolution helps to refine initial pressure, provide a better understanding of the test and investigate further away in the reservoir. Pressure transient analysis, or pta, is, in most cases, about analyzing high. Succeeding chapters 2 through 6 introduce the reader to specific log types. Aug 08, 2015 learn how to build a well test file for an oil production well with a permanent downhole gauge and to quality check the production rate data. Overview of well testing types and uses of well testing designing, selecting equipment, and executing a well test operation interpretation of well test data. Well test manager user manual for roc800series 2 introduction revised aug16. Dubai schlumberger has announced the release of geotesting geologybased well test design and interpretation services. Pressure buildup test pbu a pressure transient is induced. Well test analysis design and analyze pressure transients with ease. Streamline numerical well test interpretation sciencedirect.
Interpret efficient and effective well test analysis. Spreadsheets for the analysis of aquifertest and slug. Combined with our extensive portfolio of well testing and production services equipment, we deliver actionable data that informs your reservoir production decisions. All aspects of test design are covered including downhole tools selection, surface facility considerations as well as dynamic modelling of the test sequence to ensure proper results for interpretation. Each spreadsheet incorporates analytical solutions of the partial differential equation for groundwater flow to a well for a specific type of condition or aquifer. Overview of well testing types and uses of well testing designing, selecting equipment, and executing a. Rich transient information from well tests can be directly integrated into reservoir models and kept alive for more accurate reservoir characterization and production profiling. Well test analysis software allow understanding well and reservoir production potential at the early stage of field exploration and. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slugtest data.
The course begins with a brief derivation of the models used for pressure transient analysis and hands on interpretation basics. Well testing and pressure transient analysis is used from oil and gas exploration to production. Unlike any other oil and gas surveillance activity, a pressure transient test provides information about well and reservoir performance permeabilitythickness kh and skin s, hydraulic connectivity over large volume and average reservoir pressure. Deconvolution should be the driving tool in well test interpretation. For over 25 years, paradigm interpret well test analysis software has provided accurate and reliable design and analysis of pressure transients from traditional production and drillstem tests dst, as well as from wireline formation tests wft and testingwhiledrilling twd operations on exploration, appraisal or production wells. Demonstration of commercial software for well test interpretation with numerous examples. The test design module describes a wide variety of test types and acquaints participants with forward simulation using commercial software providing a rich analytical model catalog. Well test interpretation to reevaluate the field potential reinterpreting old well tests can help to reevaluate the well and field potential or prepare for an eor process enhanced oil recovery. Well test analysis software allow understanding well and reservoir production potential at the early stage of field exploration and development. A numerical grid can be used for geometries beyond the scope of analytical models.
The longer the flow period, the more information you can extract from a. This fifth book in the schlumberger testing services set summarizes the state of the art in well test interpretation. Basic concepts in well testing for reservoir description. It covers the analysis of tests in vertical and horizontal wells. Well test interpretation introduction 1 from its modest beginnings as a rudimentary productivity test, well testing has progressed to become one of the most powerful tools for determining complex reservoir characteristics. Well test interpretation, which is the process of obtaining information about a reservoir by analyzing the pressure transient response caused by a change in production rate, plays a very important part in making overall reservoirmanagement decisions. Almost all of our engineers are trainers in their own right and therefore aim to educate as they consult.
Validate and calibrate reservoir models by using dynamic measurements with new inversion technology for well test interpretation. The well testing tools derivative, superposition and. Sep, 2015 well test analysis is not about matching a derivative plot, but about exploring the rate and pressure data using all the well testing tools and plots derivative overlay, superposition and. Customer logins obtain the data you need to make the most informed decisions by accessing our extensive portfolio of information, analytics, and expertise. Well test web wizard to help you do a test analysis. Schlumberger has released geotesting geologybased well test design and interpretation services. Show less the conventional and modern well test interpretation methods are an important tool in the petroleum engineers toolkit. The text discusses how different log types measure various. It is better to measure something than to calculate it. Well test analysis well test support and elearning. Oil reservoir pta pressure transient analysis software. Well test interpretation society of petroleum engineers. To perform a well test successfully one must be able to measure the time, the rate, the pressure, and control the rate.
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