Zobrazeno 1 - 10
of 107
pro vyhledávání: '"J.J. Azar"'
Publikováno v:
SPE Drilling & Completion. 14:196-200
In the ever growing directional and horizontal drilling, hole cleaning is a common and costly problem. It can become particularly critical in the case of extended reach drilling, where larger and longer wellbores are drilled. During the past two deca
Publikováno v:
SPE Journal. 4:101-108
Summary The effect of drillpipe rotation on hole cleaning during directional-well drilling is investigated. An 8 in. diameter well-bore simulator, 100 ft long, with a 412 in. drillpipe was used for the study. The variables considered in this experime
Publikováno v:
SPE Drilling & Completion. 13:207-213
Summary We describe a new method for prediction of pore pressure and formation permeability from a kicking well. Getting reliable and accurate information about reservoir parameters (when the formation damage is minimal) is of importance for making p
Publikováno v:
SPE Drilling & Completion. 12:129-135
Summary This paper presents a new design model that will enable the drilling engineer to select the proper hydraulics for problem-free drilling in high-angle holes (from 55 to 90° from vertical). Empirical correlations have been developed after carr
Publikováno v:
SPE Drilling & Completion. 11:234-241
Summary A study consisting of surface and downhole field experiments, theoretical analysis, and numerical modeling has shown that mass imbalance of drillstring components is a major source of downhole lateral vibrations. Factors that contribute to im
Proper Nozzle Location, Bit Profile, and Cutter Arrangement Affect PDC-Bit Performance Significantly
Autor:
J.J. Azar, D. Garcia-Gavito
Publikováno v:
SPE Drilling & Completion. 9:167-175
During the past 20 years, the drilling industry has looked to new technology to halt the exponentially increasing costs of drilling oil, gas, and geothermal wells. This technology includes bit design innovations to improve overall drilling performanc
Publikováno v:
SPE Drilling & Completion. 9:39-46
Summary Until now, drilling-fluid specialists measured trends in the electrical stability (ES) test to decide the appropriate emulsifier treatment for invert-emulsion oil-based muds without knowing what the ES test was measuring. This paper describes
Publikováno v:
Journal of Fluids Engineering. 115:710-716
A numerical model has been developed to simulate laminar flow of Power-law and Yield-Power law fluids in conduits of arbitrary cross-section. The model is based on general, nonorthogonal, boundary-fitted, curvilinear coordinates, and represents a new
Publikováno v:
All Days.
Abstract A casing collapse occurred in a gas producing well with about 2.5 million cubic meters per day gas flow rate at a depth of 216 ft due to tectonic movements. As a result, the well blew out and different serious procedures were put into play t