Repressuring During Early Stages of Development
- C.E. Beecher (Empire Oil & Refining Co.)
- Document ID
- Society of Petroleum Engineers
- Transactions of the AIME
- Publication Date
- December 1929
- Document Type
- Journal Paper
- 137 - 150
- 1929. Original copyright American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Copyright has expired.
- 2.4.3 Sand/Solids Control, 5.4.2 Gas Injection Methods, 4.1.5 Processing Equipment, 4.6 Natural Gas, 5.2.1 Phase Behavior and PVT Measurements, 5.1.1 Exploration, Development, Structural Geology, 4.1.2 Separation and Treating, 3.1.6 Gas Lift, 5.8.5 Oil Sand, Oil Shale, Bitumen
- 1 in the last 30 days
- 144 since 2007
- Show more detail
- View rights & permissions
The application of gas or air under pressure to obtain more oil from a sandwhich has been practically exhausted by ordinary production methods has beenpracticed to a limited extent for many years. Until recently such methods wereconfined to the Eastern fields, principally those of Ohio and West Virginia,where in many cases the production obtained after applying pressure for a fewyears was nearly equal to the total production prior to that time which hadbeen obtained by the usual production methods. As early as 1917, J.O. Lewiscalled attention to this method of increasing the recovery of oil and cited thephenomenal results obtained by H. E. Smith, I. L. Dunn and O. C. Dunn, whopioneered the application of air or gas pressure recovery methods. With thisinformation available it would appear that other oil-producing sections of thecountry have been extremely slow to realize the advantages of repressuring.However, after a few successful projects in the Mid-Continent area, the oilproducers appreciated the value of this method for obtaining further andprofitable production from their practically exhausted leases and are nowmaking extensive use of it.
In general, it has been the practice to apply pressure to the sands whenproduction has declined to a small yield per well. The purpose of this paper isto discuss some of the advantages which may be expected from returning gasunder pressure to the oil sands during the early stages of development, beforethe rock pressure has been dissipated and the gas exhausted, and to stimulatediscussion of this subject on which comparatively little actual field data areavailable.
The Function of Gas
Gas associated with or dissolved in the oil is the source of energy causingmovement of the oil to the well. When this energy is dissipated productionceases.
|File Size||1 MB||Number of Pages||14|