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Integrated surveillance is critical for understanding reservoir dynamics and improving field management. A key component of the surveillance is areal monitoring of subsurface changes by use of time-lapse geophysical surveys such as 4D seismic. The purpose of the complete paper is to create a performance-based reservoir characterization by use of production data (measured rates and pressures) from a selected gas-condensate region within the Eagle Ford Shale.
Electromagnetic images can show where water flows during a hydraulic fracture. A test in the Anadarko Basin showed a fault there was a bigger hazard than expected. Good diagnostic testing is often painstaking, time-consuming, and costly, but recent studies suggest that a lack of knowledge can be even costlier. The future of unconventional exploration will require a break from the status quo. With well productivity stalling, it is time to look for a new plan of attack.
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.
This paper presents a methodology that provides the upstream industry with a robust approach to petroleum inventory management. This paper will examine ways in which Chance of Development (CoD) can be defined better, methods for its estimation, and its appropriate application along with common misuses. The implementation of the PRMS has contributed significantly to the understanding of the hydrocarbon-maturation process in the Netherlands. 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. The Guidelines for Application of the Petroleum Resources Management System (AG) document was issued in November 2011.
Enhanced Gas Recovery: Benefits Seen in Downhole vs. Wellhead Gas Compression Extensive analysis has led to the conclusion that downhole gas compression provides a greater increase in gas production than wellhead gas compression because of the additional drawdown created. In drawdown management, operators can exert control over the downhole flow pressure, reservoir pressure, and choke size to avoid estimated ultimate recovery (EUR) losses.
Big-data mining techniques can help determe the type-curves and the resulting estimated ultimate recovery of an asset being evaluated for acquisition. In this work, the authors perform automatic decline analysis on Marcellus Shale gas wells and predict ultimate recovery for each well. In this work, the authors perform automatic decline analysis on Marcellus Shale gas wells and predict ultimate recovery for each well.
The new numbers for the Marcellus Shale and Point Pleasant-Utica Shale represent large increases from previous USGS assessments of both formations. Production and proved reserves in the Permian Basin’s Wolfcamp Shale and Bone Spring Formation are reaching new heights, and a new assessment from the US Geological Survey indicates the industry is just scratching the subsurface when it comes to what may be technically recoverable. Major oil discoveries by Armstrong Oil & Gas and ConocoPhillips have compelled the US Department of the Interior to reassess its estimate of undiscovered, technically recoverable resources in parts of Alaska. The list of the biggest gas plays in the US is being revised as the US Geological Survey creates new estimates based on additional drilling results and available rock samples. New at Number 2 is the Mancos Shale on the Western Slope of the Rockies with 66 Tcf in recoverable reserves.
Although polymer flooding has become a promising enhanced oil recovery (EOR) technique, no field tests have been performed to date in Alaska’s underdeveloped heavy-oil reservoirs. The green light comes 4 years after the privately-held firm filed its development and production plan. Liberty Island would consist of gravel, stretch 9 acres, and sit just a few miles offshore. Well fires look all consuming, but proving they burn all the oil without leaving a spill behind required the efforts of Boots Coots plus a rocket scientist and a lot of high powered computer equipment. Major oil discoveries by Armstrong Oil & Gas and ConocoPhillips have compelled the US Department of the Interior to reassess its estimate of undiscovered, technically recoverable resources in parts of Alaska.
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.