This paper discusses a new technique to the well productivity evaluation. The approach is based on idea of representing a well as superposition of spherical particles (wells) positioned next to each other and acting as a single well. Such representation of a well allows correct handling of external boundary conditions in a 3D reservoir including the no cross-flow conditions at the top and bottom of the reservoir. A special routine enables to satisfy internal boundary conditions (conditions at the well bore) and thus, obtain exact solution to the problem of the well productivity evaluation. Such an approach allows modelling of a well of any shape and trajectory (vertical or delineated well fully or partially penetrating a reservoir, horizontal wells, multilateral wells with different diameter of sidetracks, wells with open hole and perforated completion with arbitrary number and length of perforated intervals, etc.) on a basis of a single concept. This approach allows visualization of the pressure distribution in a reservoir, which helps to understand complexity of flow towards well. Comparison of the new equations for the well productivity evaluation with solutions available from the literature is given in the paper. In particular, it is shown that in some cases (spherical well in an infinite 3D reservoir, fully penetrated well in homogeneous reservoir with constant thickness, etc.) equations obtained by this method converge to the known exact analytical solutions. Comparative analysis of the productivity of wells with different length and trajectories enables selection of the most appropriate well for the given reservoir conditions.
Skip Nav Destination
Offshore Mediterranean Conference and Exhibition
March 26–28, 2003
Ravenna, Italy
ISBN:
9788894043662
A New Technique For The Well Productivity Evaluation Available to Purchase
A. Zolotukhin;
A. Zolotukhin
Statoil/Stavanger University College
Search for other works by this author on:
D. Michelevicius
D. Michelevicius
Minijos Nafta/Vilnius University
Search for other works by this author on:
Paper presented at the Offshore Mediterranean Conference and Exhibition, Ravenna, Italy, March 2003.
Paper Number:
OMC-2003-117
Published:
March 26 2003
Citation
Zolotukhin, A., and D. Michelevicius. "A New Technique For The Well Productivity Evaluation." Paper presented at the Offshore Mediterranean Conference and Exhibition, Ravenna, Italy, March 2003.
Download citation file:
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Could not validate captcha. Please try again.
Pay-Per-View Access
$10.00
Advertisement
3
Views
Advertisement
Suggested Reading
Advertisement