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Evaluation of damage to horizontal wells through equivalent horizontal well length
The skin factor and additional pressure drop which are used to evaluate the formation damage of vertical wells can not accurately be applied to horizontal wells. A new model for evaluating formation damage of horizontal wells is presented. This method is
Bin LIU +3 more
doaj +5 more sources
A Method of Productivity Prediction for Multi-Fractured Horizontal Well
The reservoir of horizontal wells in a block of Junggar basin is tight and highly heterogeneous. After large-scale volume fracturing by classification and clustering, there is a large difference in production.
YANG Fan +5 more
doaj +2 more sources
Horizontal well completions using data analytics
There is no quick way to measure completion configurations using simple production data, and assessing them is a challenge for many operators. It has been demonstrated by the O&G industry that completion configurations of horizontal wells influence ...
A. Alzahabi +2 more
doaj +2 more sources
Flood pattern optimization of horizontal well injection
To optimize well spacing and injection rate in horizontal well flood pattern, formulae of the reasonable injection rate and well spacing are derived under fraction and no-fraction conditions respectively using filtration theory.
Zong-fa LING +3 more
doaj +3 more sources
Study on inter-segment interference mechanisms and patterns between horizontal well sections in a combined well pattern of horizontal and vertical wells in offshore oilfields [PDF]
In the development of heavy oil fields in the Bohai Sea, the “horizontal + directional” well pattern has significantly improved recovery rates. However, as the oilfield enters the ultra-high water cut stage, changes in waterflooding behavior and ...
Ma Kuiqian +10 more
doaj +2 more sources
Although currently, large-scale and multilateral horizontal wells are an important way to improve the oil recovery in the unconventional reservoirs, the flow behavior of fluid from the reservoir into the horizontal wellbore becomes more challenged ...
Gaoqiang Ma +4 more
doaj +2 more sources
On the horizontal-well pumping tests in anisotropic confined aquifers
A method that directly solves the boundary problem of flow to a horizontal-well in an anisotropic confined aquifer is provided. This method solves the point source problem first, and then integrates the point source solution along the horizontal well ...
Hongbin Zhan +2 more
exaly +2 more sources
Horizontal well fracturing technology for reservoirs with low permeability
The horizontal well stress distribution and the rock failure criterion constitute a fracture initiation mathematical model, which was solved by the iteration method.
Cai Wenbin +4 more
doaj +3 more sources
HORIZONTAL WELL DRILL-IN FLUIDS
Main objective of horizontal driling is to place a drain-hole for a long distance within the pay zone to enhance productivity or injectivity. In drilling horizontal wells, more serious problems appear than in drilling vertical wells.
Nediljka Gaurina-Međimurec
doaj +1 more source
Methodology for horizontal well pattern design in anisotropic oil reservoirs
Anisotropic permeability has major effects on horizontal well networks. Well lines, horizontal sections of the wells, and the principal direction of anisotropic permeability should be parallel or perpendicular to each other, in which the horizontal well ...
Yue-tian LIU
doaj +3 more sources

