Unconventional/complex reservoirs
Conflict‑driven price gains may be offset by higher costs, supply‑chain risks, and a limited appetite for new drilling activity.
This paper introduces a novel steam-sensitive flow-control device designed to restrict the production of steam and low-subcool liquids while allowing higher mobility of oil-phase fluids.
This paper demonstrates how the integration of multiphysics downhole imaging with machine-learning techniques provides a significant advance in perforation-erosion analysis.
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The incredibly tight rocks that are the source of North America’s gas renaissance are off limits in Germany and France. Though Maersk drilled the first multifractured horizontal well in the North Sea in 1987, some European countries are now banning operations that have occurred legally for decades. -
Drilling long horizontal wellbores and completing wells with multistage fracturing are common practices in shale-play development.
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Hydraulically fracturing and stimulating multiple horizontal wells in sequence has been rapidly adopted by operators because of the potential for production without introducing unwanted risks.
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At the Unconventional Resources Technology Conference in Denver, discussion revolved around solving problems below ground and above ground.
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Matrix acidizing is commonly used as a preflush to the hydraulic-fracturing stimulation of shale formations. The process dissolves sediments and mud solids that inhibit the permeability of the rock, enlarging the natural pores of the reservoir and stimulating flow of hydrocarbons.
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With the industry moving forward with exploration and development in the broader categories of unconventional resources globally, it is of paramount importance to assess and improve the different methods and tools for estimating reserves, to establish their accuracy and credibility.
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There are no reliable estimates of technically recoverable resources (TRRs) for unconventional reservoirs outside North Amercia, and many countries lack the advanced technology such as horizontal drilling and hydraulic fracturing necessary to develop unconventional resources.
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Flowback (or cleanup) of fracturing treatments can have a profound influence on well productivity in unconventional reservoirs. The process of cleanup crosses many discipline boundaries.
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This paper presents a pragmatic integrated work flow used to optimize development and guide critical development decisions in the Black Hawk field.
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This paper discusses fracture stimulation in the first joint-venture shale-gas project with foreign companies in China.
