Factory-Model Approach Improves Performance of Coiled-Tubing Drillout
This paper presents a factory-model approach to improving CT drillout performance that has been used successfully for more than 3 years and has become standard practice.
Chemical-Diversion Agents Can Aid Acid Fracturing in Openhole Horizontal Wells
This paper presents a newly designed triaxial fracturing system and describes a series of experiments that verified the validity of tool-free chemical diversion for multistage fracturing of openhole horizontal wells.
Combined Approach Improves Fault Description for Horizontal-Well Geosteering
This paper presents an interdisciplinary approach to the description of tectonic dislocations made on the basis of interpretation of seismic data, petrophysical analysis of well-logging data in horizontal wells, and inversion of a multifrequency propagation tool.
Innovation Will Drive Shale Survival
How can operators and service companies go forward in a shale-dominated industry with low oil prices?
Why Can’t We Apply Advanced Technologies More Often to Vertical Wells in Mature Fields?
The oil and gas industry should pay more attention to mature vertical wells but it first must consider technology and cost.
Horizontal and Complex-Trajectory Wells
Advances made in horizontal and complex-trajectory wells demonstrate that, despite this historic downturn, the industry has kept innovating and optimizing to bring more-efficient solutions to the table.
A New Approach for Optimization of Long-Horizontal-Well Performance
Experience has revealed that frictional pressure loss in the wellbore hinders the full use of the entire length of the horizontal well. This paper presents a new approach to maximize the use of the full length of long horizontal drainholes.
Use of Microseismic Monitoring To Compare Completion Designs
This study compares the performance of openhole-packer completion systems with that of cemented-liner completion systems in the northern Montney gas resource play.
Friction-Load Redistribution for Extended-Reach- and Horizontal-Well Completions
In horizontal and extended-reach wells in which long completions are run into highly deviated or lateral zones, large compression loads arise because of running friction.
Fit-For-Purpose Sand Screens Address Cost-Benefit Balance
Operators continue to look to prolific high-permeability, clastic reservoirs in basins around the world. The use of high-deviation and horizontal well trajectories in these fields improves productivity but increases the challenges of sand control.
Completion and Well-Spacing Optimization for Horizontal Wells in Pad Development
In organic shales, hydraulic fracturing is important for optimizing the production of horizontal wells. For a standalone lateral, the propped surface should be maximized to increase production. In the case of a pad, well spacing is an additional factor.
Model for a Shale-Gas Formation With Salt-Sealed Natural Fractures
This paper offers an alternative explanation for the early boundary-dominated flow related to dissolution of salt-sealed natural fractures in the shale.
Toe-Up or Toe-Down: Does It Really Matter?
An analysis studied whether a well's toe could be affecting the production performance.
Optimization of Single-Trip Milling Using Large-Diameter Coiled Tubing
Larger-diameter coiled tubing recently has been used to perform millouts because of its improved set-down force and increased annular velocities for cleanout purposes. Service companies and operators have reduced the number of wiper trips when using larger-diameter CT, to save time and money.
Reviving Europe’s Largest Onshore Field
Europe’s largest onshore oil field, the Patos-Marinza in southern Albania, has been given a new lease on life after seeing production soar from 600 B/D just over a decade ago to more than 20,000 B/D this year.
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