|
Modeling of Reservoir Process Using the Method of Radial Drilling |
|
|
|
|
Modeling of Reservoir Process Using the Method of Radial Drilling Authors: U.К. Zhapbasbayev, B.K. Assilbekov, S.Z. Kabdolov, G.B. Khairov
At present a number of methods of improvement of reservoir recovery are well-known (Reference,
1983; Bourje, 1988; Baibakov & Garushev, 1988; Stimulation, 2004):
1) thermal method of effect on productive horizon (Reference, 1983; Bourje, 1988; Baibakov & Garushev,
1988);
2) formation hydro-breakdown and application of combustible gas energy for organizing of blast in
a borehole (Stimulation, 2004);
3) acid treatment of well bottom zone, etc. (Reference, 1983).
The most common is the fi rst method, which maintains not only producing energy, but due to improvement
of rheological characteristics increases oil fl uidity (Reference, 1983; Bourje, 1988; Baibakov & Garushev,
1988). However, this method is applied with large consumption of facilities at pumping and heating
of heat carriers (Bourje, 1988; Baibakov & Garushev, 1988). Hydro-breakdown with application of
combustible gas energy reqires delicate management and may lead to uncontrolled process that is fraught
with dangerous situations (Stimulation, 2004). The third method generally is suitable for bottomhole
formation zone (Reference, 1983). The method of radial drilling, when reservoirs with high permeability
are made for oil withdrawal from strata with low conductive characteristics and extensive dimensions
(of high thickness) – is one of effective methods improvement of reservoir recovery. This task is of large
interest due to involving in treatment strata with complicated geological structure and for rehabilitation
of deposits with abnormal rheological characteristics of oil. The problem is to determine interaction of
low-permeable bank of high thickness with high-permeable reservoir, produced by radial drilling method,
and fi nd required oil withdrawal for rational exploitation of deposit. |
2011