The Impact of Multistage Fracturing on the Production Performance of the Horizontal Wells in Shale Formations

Ayers, Kimberly L.; Aminian, K.; Ameri, S.

doi:10.2118/161347-ms

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Due to the complex matrix structure with low permeabilities and porosities, the shale gas is trapped inside the nano-pores and hence the flow is highly restricted. To produce gas from such a complex system, an interconnected fracture system with extended wells is required (Ayers et al 2012;Sprunger et al 2021;Syed et al 2021a;Zhang et al 2020). Horizontal drilling, enhanced oil recovery, and hydraulic fracturing are some of the technologies implemented to recover unconventional hydrocarbon reservoirs (Muther et al 2021(Muther et al , 2022Syed et al 2011Syed et al , 2021aYue et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Contribution of gas adsorption–desorption in Marcellus shale for different fractured well configurations

Muther

Syed

Dahaghi

et al. 2022

J Petrol Explor Prod Technol

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Gas adsorption onto the shale system carries significant importance in accurately forecasting gas production and estimating underground reserves. For the Marcellus shale system, the adsorption of gas also plays a critical role in ultimate recovery and overall reserves quantification. Yet, the effect of different adsorption characteristics in different Marcellus shale regions is not systematically analyzed together. In this study, the contribution of different gas adsorption phenomena in Marcellus shale for different fractured well configurations is investigated. The objective is to understand the reservoir production responses under various adsorption characteristics and well design. For this analysis, a mechanistic Marcellus shale model under confining stresses is numerically simulated with the available literature data. After that, six samples containing adsorption characteristics of different Marcellus shale regions are taken from the literature and specified in the model for accurately defining the adsorption physics in the shale system. In the end, two different well configurations including the fractured vertical and horizontal well are specified in the model separately to analyze the impact of gas desorption on production response. The analysis indicates that the gas desorption improves the overall gas production by a maximum of 5% in a single-stage multi-clustered fractured horizontal well. In addition, the effect of desorption is found to be minimal during initial flow periods, and considerable at longer flow periods. Additionally, the gas desorption is found to be more responsive towards high surface area and large fracture networks. Finally, it is determined that a fractured horizontal well is a viable option that allows high gas desorption in Marcellus shale. This study, hence, aids widely in deciding better production strategies based on adsorption characteristics for producing Marcellus shale.

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Section: Introductionmentioning

confidence: 99%

Contribution of gas adsorption–desorption in Marcellus shale for different fractured well configurations

Muther

Syed

Dahaghi

et al. 2022

J Petrol Explor Prod Technol

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“…The objective of the horizontal wells and stimulation treatment is to create a large, highly fractured, interconnected network allowing for contact to be made with as much of the formation surface as possible and providing access to the hydrocarbons (Elsaig, Aminian, Ameri, & Zamirian, 2016). (Stokes & Summers, 2012) Spanning the majority of the Appalachian Basin, the Marcellus Shale, a Devonian black shale formation extends from New York through Pennsylvania, West Virginia, Ohio and Maryland (Ayers, Aminian, & Ameri, 2012). The Marcellus has tremendous potential, and is relatively shallow at depths of 2,000-8,000 ft. and 300-1,000 ft. thick, seen in Figure 2.…”

Section: Shale Gasmentioning

confidence: 99%

The Impact of Shale Gas on Gas Storage Performance

Sattari¹

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The advances in technology has resulted in significant gas production from the shale formations across the United States. Marcellus Shale which spans most of the Appalachian Basin is one the most prolific gas producers in the United States. Marcellus Shale gas has a distinctly different composition from the existing Northern Appalachian typical dry natural gas. As gas production from Marcellus shale has increased, so has the amount of the shale gas in the natural gas transportation system in the Appalachian Basin. The composition of the injected gas into a storage reservoir can the storage volumes, pressures, the withdrawal rate, and the pressure drawdown. The objective of this study is to investigate the impact of storing Marcellus Shale gas on the capacity and deliverability of a gas storage reservoir. In this study, the working gas in the storage was assumed to be a mixture of the Marcellus Shale gas and the original pipeline (storage) gas. The fraction of the shale gas in the mixture was varied from 10 percent to 50 percent to determine the changes in the storage working volume, storage top pressure, withdrawal rate, and pressure drawdown. The results indicate that there is linear relationship between the fraction of the shale gas in the working gas and the changes in mixture storage working volume, storage top pressure, withdrawal rate, and pressure drawdown.

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Expandable Solid-Steel Liner Applications in the Marcellus

2013

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In the Marcellus Shale gas play in Pennsylvania and West Virginia, solid-steel expandable liners have been used over the last three years to restore casing damaged by over-pressuring during completion operations and to cover unwanted perforations to enable hydraulic fracturing. This paper describes the technology of expandable solid-steel liners and presents representative case histories in the Marcellus Shale. Solid-steel expandable liners are expanded downhole using a pressure-driven cone that enlarges the diameter of the liner by permanently deforming it beyond its yield point but not to failure. While expanding the liner, elastomeric seals on the outside are compressed against the base casing to provide pressure integrity and anchoring. In the Marcellus Shale, one well experienced a casing split in the lateral section during the primary cement job, and in a second well, a casing split occurred in the lateral section while pressuring open the toe fracturing sleeve. In a third well, three sets of squeeze perforations over a 1,300-ft interval had to be covered. In a fourth well, circulation for a cement job could not be established requiring the lateral liner to be perforated over its entire length in order to squeeze cement behind the casing. All of these wells required restorations of 5-1/2-in. 20 lb/ft casing to enable hydraulic fracturing. In the first well, the casing split was repaired using a standard single-joint of expandable liner allowing the fracturing treatment to be performed using controlled screenouts (sand plugs) for fracturing-stage diversion below the expandable liner. In the second well, the casing split was repaired using two standard joints of expandable liner and the fracturing treatment was performed using drillable composite fracturing plugs (frac plugs) set below the installed liner for fracturing-stage diversion. In the third well, three separate high-performance single joints of expandable liner were used to cover the three sets of squeeze perforations over the 1,300-ft interval to enable fracturing using frac plugs set below the three single-joint expandable liners. In the fourth well, the entire lateral was relined with the solid-steel expandable liner, maintaining inside diameter (ID) sufficient for fracturing with frac plugs set inside the liner. In all these shale gas wells, solid-steel expandable liners provided reliable and robust solutions enabling fracturing to proceed as planned.

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The Impact of Multistage Fracturing on the Production Performance of the Horizontal Wells in Shale Formations

Cited by 5 publications

References 8 publications

Contribution of gas adsorption–desorption in Marcellus shale for different fractured well configurations

Contribution of gas adsorption–desorption in Marcellus shale for different fractured well configurations

The Impact of Shale Gas on Gas Storage Performance

Expandable Solid-Steel Liner Applications in the Marcellus

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