|Theme||Visible||Selectable||Appearance||Zoom Range (now: 0)|
Unconventional development has made it clear to Erdal Ozkan that conventional theory overlooks a lot of potentially productive rock. He talks about looking for ways to do better as part of JPT’s tech director report. Completion engineers feel pressure to maximize production per acre and minimize the downsides of fracturing in tight spaces. Terry Palisch, talks about promoting knowledge sharing as part of JPT’s tech director report. Though crude prices are rising, US shale producers face questions over whether their improving oil production results and cost efficiencies will last as increasing drilling activity drives demand for oilfield services.
The current oil and gas commodity prices have posed several challenges to oil and gas companies operating in shale plays trying to generate revenue or even becoming cash neutral. The 1996 book, Lean Thinking, introduced lean to mainstream business. Since then, lean has propelled operational excellence in construction, software development, healthcare, financial services, state government, and more.
A Midland Basin case study on estimating production, drainage volume, and interference from multiple stacked wells. Openhole multistage (OHMS) systems are more cost-effective than the cemented casing plug-and-perf (CCPP) techniques for increasing production and reducing development costs. Understanding how much rock is being stimulated and propped is critical for unconventional producers. New imaging methods using electromagnetic energy or acoustic microemitters could represent a milestone in understanding what is left behind after fracturing. The integration of microseismic data with 3D seismic attributes, and well log and completions data is used to understand geomechanical rock properties.
Knowing which horizon crude oil flows from and in what proportions has been a major challenge for shale producers. Increasingly, they are turning to new technology to find the answer. For the past 2 decades, the use of DNA sequencing technology has largely been relegated to the domains of criminal forensics and the healthcare industry. One company is betting that the shale industry soon will join that list.
The scheme by OPEC and non-OPEC producers to collectively curb oil production has brought stability to the global market—which, as a result, could soon be awash in “a second wave” of US shale output growth. The next couple of years for the oil and gas industry are likely to be defined by mediocre prices.
The very first fracturing job used sand scooped from a nearby river. After decades of buying sand based on tight size standards, unconventional operators are increasingly going back to a broad range of sizes, similar to that river sand. Hydraulic fracturing is now a little bit easier for US shale operators thanks to readily available horsepower and in-basin sand. A closer look at technological and mechanical solutions being developed to limit exposure to respirable silica dust during hydraulic fracturing operations in the wake of US government regulations. A strategic objective of Saudi Aramco is exploring and developing deep and unconventional gas reservoirs, many of which are considered extremely tight.
Oil exploration and production jobs globally are at about the level they were after deep cuts following the 2014 crash. Now companies need to find more to cut. The prescribed treatment for market- and virus-induced oil price collapse is to quickly slow production growth. Two US shale companies moved swiftly to cut the pace of drilling and completions, but it is too soon to know if that will have any impact. Digital advances allow computers to do many of the tedious tasks once done by engineers, which frees them to focus on more interesting tasks.
PipeFractionalFlow, a spinoff startup from the University of Texas at Austin, uses new theories and equations to make modeling complex multiphase flow more affordable. A model recently developed offers operators an “independent and unbiased” way to validate the system and select candidate wells. Slug flow has made the life of an unconventional production engineer a bit complicated, but a new downhole technology may smooth things right out by solving some big artificial lift problems for the shale sector. This paper presents the results of a comprehensive multiphase-flow study that investigated the relationship between the principal stresses and lateral direction in hydraulically fractured horizontal wells. This paper describes a methodology for classification of artificial-lift-system (ALS) failures and addition of a commonly used root-cause failure classification.
One of the oldest names in geomechanical modeling has learned some new tricks, and like so many recent advances in the oil and gas industry, it has everything to do with the North American shale revolution. This paper presents results from the analysis of the effect of in-fill drilling on parent-well performance, and describes a simplistic approach to understanding the effect of the quest for operational efficiencies and economic cycles on development strategies. One of the biggest ways to lower the cost of production from shale would be to identify zones that are productive, or not, before fracturing them.
The decision comes 2 months after UK shale operator Cuadrilla Resources halted stimulation work at its Preston New Road site in Lancashire because of a magnitude 2.9 seismic event. The UK shale operator will move forward with fracturing and testing its second well at its Lancashire site despite strict constraints on induced seismicity that hampered fracturing work on its first well. UK’s first horizontal shale well has yielded positive results after an initial flow test. But further testing—and fracturing of a second well—will have to come amid a continuation of UK’s stringent regulations on induced seismicity. Small quantities of gas and water are flowing to the surface from the UK’s first horizontal shale well—just days after operator Cuadrilla paused injection work for a second time amid earthquakes.