Abstract
This thesis is a collection of models, solutions and analysis equations or type curves useful in analyzing the production behavior of tight gas wells. Variety of flow solutions is adapted to yield pressure response for constant rate case and the production rate for constant pwf case. Equal emphasis is placed on short-term production (hours to a few days) as well as long-term production (1 to 15 years). A wide range of complex flow regime is investigated. A major section of this study deals with the effects of flow-paths (high permeability region(s)) on tight gas well performance. Causes for long-term linear flow in wells interacting with flow-paths are also investigated. The objectives of this research are: (1) Develop a catalog of models and solutions showcasing the effects of flow-paths on tight gas well performance. (2) Study the effect of natural fracture(s) near a well. (3) Study the effect of reservoir heterogeneity on hydraulic fracture. (4) Examine the matrix block drainage in a natural fracture network. Reservoir simulation techniques are used in combination with analytical, semi-analytical and numerical solutions, to achieve our objectives. A catalog exhibiting the interaction between a well and flow-path is developed. This includes models, solutions and type curves. Models included are: (1) Vertical well with partial completion in a homogeneous reservoir (2) Vertical well intersecting single horizontal flow-path (3) Well near a flow-path (4) Well with multiple horizontal flow-paths equidistant from the well (5) Well near fracture(s) (effect of fracture orientation) (6) Hydraulic fracture passing through reservoir heterogeneity (7) Matrix block drainage in fractured network system
Ganpule, Sameer Vasant (2001). Effects of flow paths on tight gas well performance. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -2001 -THESIS -G363.