Analysis of Reservoir Performance
- R.E. Old Jr. (Core Laboratories Inc.)
- Document ID
- Society of Petroleum Engineers
- Transactions of the AIME
- Publication Date
- December 1943
- Document Type
- Journal Paper
- 86 - 98
- 1943. Original copyright American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Copyright has expired.
- 4.6 Natural Gas, 5.4.2 Gas Injection Methods, 5.2.1 Phase Behavior and PVT Measurements, 2.4.3 Sand/Solids Control, 5.2 Reservoir Fluid Dynamics, 1.6.9 Coring, Fishing, 4.1.9 Tanks and storage systems
- 6 in the last 30 days
- 688 since 2007
- Show more detail
- View rights & permissions
Through the use of pressure and production records, formation properties andbottom-hole sample data, the performance of an oil reservoir may be studiedanalytically to define and evaluate the natural forces acting on and within thereservoir. Use is made of material-balance methods and the equations fornatural water encroachment to estimate reserves. Methods for calculation ofpressures are given.
A study of the Jones sand, Schuler field, Arkansas, has been made and isgiven here to illustrate the value of the methods discussed.
With the decreasing rate of discovery of new oil reserves, attention isnecessarily focused on the efficient development, evaluation, and production ofexisting reserves. From the nation's viewpoint, the necessity of conservingresources is obvious. From the operator's viewpoint, the problem is to lengthenthe period of profitable operation, in an attempt to increase the return on hisinvestment. To do this the operator must take advantage of the natural forcesacting on and within the reservoir. Natural water encroachment, the nemesis ofprofitable operation in the past, can be and is being harnessed to produce agreater oil recovery during the stage of flowing production. Proper evaluationof water encroachment rates and a fuller understanding of reservoir behaviordictate the appropriate production procedures.
Complacency in hit and miss production is obsolete. Oil production must andwill approach the efficiency of other businesses, such as manufacturing. Amanufacturer will not place an article on the market until he has fullyinvestigated the processes involved, additional investment in equipment, costsof production, and expected profits. These may be modified by actual experienceat a later date, but at least he begins with an idea of expected return. It isjust as logical that an oil operator should investigate these same factorsduring the development and the early period of production of an oilreserve.
The complexity of the problems existing in oil reservoirs should not beunderestimated. Conversely, they should not be regarded as insoluble. Manycompletely defy solution, but there are others that can be solved completely orattacked intelligently to yield approximate results.
|File Size||961 KB||Number of Pages||13|