Download e-book for kindle: Well test analysis : the use of advanced interpretation by Dominique Bourdet

By Dominique Bourdet

ISBN-10: 0080543774

ISBN-13: 9780080543772

ISBN-10: 0444509682

ISBN-13: 9780444509680

This booklet on good try out research, and using complex interpretation types is quantity three within the sequence instruction manual of Petroleum Exploration and Production.
The chapters within the e-book are: ideas of temporary checking out, research equipment, Wellbore stipulations, influence of Reservoir Heterogeneities on good Responses, impact of Reservoir barriers on good Responses, a number of good trying out, software to fuel Reservoirs, software to Multiphase Reservoirs, specific assessments, sensible features of good try Interpretation.

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Download PDF by Dominique Bourdet: Well test analysis : the use of advanced interpretation

This e-book on good attempt research, and using complex interpretation types is quantity three within the sequence instruction manual of Petroleum Exploration and creation. The chapters within the booklet are: rules of temporary trying out, research tools, Wellbore stipulations, impression of Reservoir Heterogeneities on good Responses, influence of Reservoir obstacles on good Responses, a number of good checking out, program to fuel Reservoirs, program to Multiphase Reservoirs, specific checks, functional elements of good try Interpretation.

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Example text

10-1 . 1 . 10 . 22. Pressure and derivative type-curve for a well with wellbore storage and skin, homogeneous reservoir. Log-log scales, pj) v e r s u s t:)/Cj). 3. 2 from the diagnosis to the consistency check. Two examples are used to illustrate that the test history plot is an efficient check of the interpretation model applicability, over a large time range. CHAPTER 3 WELLBORE CONDITIONS In this chapter, the effect of the wellbore conditions on pressure responses is described. For simplification, the reservoir is assumed to be infinite and homogeneous.

Semi-log scales. 1, well responses are made up of several flow regimes, whose chronology defines, from early times to late times, the near wellbore conditions to the reservoir limits in the case of a long test. The derivative response exhibits a characteristic shape during all basic flow geometries. By reading the shape of the derivative response, the sequence of regimes can be established. Frequently only transitional behaviors between pure regimes are available on the log-log derivative curve, the diagnosis is not unique and several interpretation models have to be considered.

10. Well near a sealing fault. The analysis methods 44 In some cases, the distortion can produce a temporary decline in the build-up derivative response, and produce a valley shape before the late time response (with heterogeneous reservoirs or boundary effects for example, see Chapters 4 and 5). When recorded test data stops at the time corresponding to the downturn in the derivative, and the upturn of the valley is not seen, interpretation of the late time trend can be difficult. Extrapolation of a small late time downward trend of the derivative response can be hazardous, it can simply correspond to the temporary distortion produced by the build-up derivative calculation or, as discussed next, to the effect produced by smoothing.

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Well test analysis : the use of advanced interpretation models by Dominique Bourdet


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