Multilaterals: An Unconventional Approach to Unconventional Reservoirs

Wilcox, David C.; Sevilla, Mauricio; Shafer, Eric; Gill, Greg; Kress, Ian; Sánchez, Néstor

doi:10.15530/urtec-2019-150

Cited by 3 publications

(2 citation statements)

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“…However, increasing the number of stages increases the cost of fracturing. In the recent literature, a pilot well study suggests that it is highly possible to drill, stimulate, and successfully produce hydrocarbons through multi-lateral well completion (Wilcox et al 2019). A schematic description of such a technology is shown in Fig.…”

Section: Multi-lateral Well Fracturingmentioning

confidence: 99%

Unconventional hydrocarbon resources: geological statistics, petrophysical characterization, and field development strategies

Muther

Qureshi

Syed

et al. 2021

J Petrol Explor Prod Technol

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Hydrocarbons exist in abundant quantity beneath the earth's surface. These hydrocarbons are generally classified as conventional and unconventional hydrocarbons depending upon their nature, geology, and exploitation procedure. Since the conventional hydrocarbons are under the depletion phase, the unconventional hydrocarbons have been a major candidate for current and future hydrocarbon production. Additionally, investment and research have increased significantly for its exploitation. Having the shift toward unconventional hydrocarbons, this study reviews in depth the technical aspects of unconventional hydrocarbons. This review brings together all the important aspects of unconventional reservoirs in single literature. This review at first highlights the worldwide unconventional hydrocarbon resources, their technical concept, distribution, and future supplies. A portion of this study also discusses the resources of progressive unconventional hydrocarbon candidates. Apart from this, this review also highlights the geological aspects of different unconventional hydrocarbon resources including tight, shale, and coalbed methane. The petrophysical behavior of such assists including the response to well logs and the discussion of improved correlation for petrophysical analysis is a significant part of this detailed study. The variation in geology and petrophysics of unconventional resources with conventional resources are also presented. In addition, the latest technologies for producing unconventional hydrocarbons ranging from fractured wells to different fluid injections are discussed in this study. In the end, the latest machine learning and optimization techniques have been discussed that aids in the optimized field development planning of unconventional reservoirs.

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Section: Multi-lateral Well Fracturingmentioning

confidence: 99%

Unconventional hydrocarbon resources: geological statistics, petrophysical characterization, and field development strategies

Muther

Qureshi

Syed

et al. 2021

J Petrol Explor Prod Technol

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“…The advantages of this drag-reducing agent are simple liquid preparation, a high drag reduction rate, and rapid dissolution. − The most outstanding feature of the emulsion drag-reducing agent is the convenience of using it . Continuous fluid preparation is the key to fracturing fluid construction. − However, some drawbacks limit the use of the emulsion drag-reducing agent. First, a large number of emulsifiers and other auxiliaries are introduced into the polymerization process, making the chain transfer reaction complicated, and the molecular weight of polymers obtained via polymerization can only reach approximately 15 million, meaning that the emulsion drag-reducing agent has poor viscosity-increasing ability.…”

Section: Introductionmentioning

confidence: 99%

Study on Multifunctional Drag-Reducing Suspension Agents

Chen

Zhao

et al. 2023

ACS Omega

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In the continuous liquid distribution process, the emulsion drag-reducing agent has poor viscosity-increasing ability and a low solid content, resulting in a high concentration and high cost. To solve this problem, a nanosuspension agent with a "shelf structure," a dispersion accelerator, and a density regulator were used as auxiliary agents to realize the stable suspension of a polymer dry powder in an oil phase. The results show that the molecular weight of the synthesized polymer powder could reach nearly 28 million when the mass ratio of acrylamide (AM) to acrylic acid (AA) was 80:20 and a chain extender was added. The synthesized polymer powder was dissolved in tap water and 2% brine separately, and the viscosity of the solutions was measured. The dissolution rate of up to 90% was reached at 30 °C, and the viscosity was 33 and 23 mPa s in tap water and in 2% brine, respectively. A stable suspension can be obtained without obvious stratification in one week and with good dispersion after 6 months by using the following composition: 37% oil phase + 1% nanosuspension agent + 10% dispersion accelerator + 50% polymer dry powder + 2% density regulator. The drag-reduction performance is good, remaining close to 73% with increasing time. The viscosity of the suspension solution is 21 mPa s in 50% standard brine, and the salt resistance is good. The rate at which the suspension fracturing fluid damages the formation is 7.56%, and the reservoir damage is unsubstantial. Its performance in field applications illustrated that its sand-carrying capacity, referring to the capacity of the fracturing fluid to carry proppants into the fracture and place them in a predetermined position, reaches 10%. The results show that the fracturing fluid can be used as a pre-fluid to break the formation, form fractures, and expand fracture networks under low-viscosity conditions and can be used as a sand-carrying fluid to carry proppants into the formation under high-viscosity conditions. Additionally, the fracturing fluid can directly realize the fast conversion between high and low viscosities and allow for multiple uses of one agent.

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A Review of Hydraulic Fracturing and Latest Developments in Unconventional Reservoirs

Temizel

Canbaz

Palabiyik³

et al. 2022

Day 1 Mon, May 02, 2022

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Hydraulic fracturing is a widely accepted and applied stimulation method in the unconventional oil and gas industry. With the increasing attention to unconventional reservoirs, hydraulic fracturing technologies have developed and improved more in the last few years. This study explores all applications of hydraulic fracturing methods to a great extent. It can be used as a guideline study, covering all the procedures and collected data for conventional reservoirs by considering the limited parameters of unconventional reservoirs. This paper intends to be a reference article containing all the aspects of the hydraulic fracturing method. A comprehensive study has been created by having a wide scope of examinations from the applied mechanisms to the technological materials conveyed from the different industries to utilize this technique efficiently. Furthermore, this study analyses the method, worldwide applications, advantages and disadvantages, and comparisons in different unconventional reservoirs. Various case studies that examine the challenges and pros & cons of hydraulic fracturing are included. Hydraulic fracturing is a promising stimulation technique that has been widely applied worldwide. It is challenging due to the tight and nanoporous nature, low permeability, complex geological structure, and in-situ stress field in unconventional reservoirs. Consequently, economic conditions and various parameters should be analyzed individually in each case for efficient applications. Therefore, this study provides the primary parameters and elaborate analysis of the techniques applied for a successful stimulation under SPECIFIC circumstances and provides a full spectrum of information needed for unconventional field developments. All the results are evaluated and detailed for each field case by providing the principles of applying hydraulic fracturing technologies. Many literature reviews provide different examples of hydraulic fraction methods; however, no study covers and links up both the main parameters and learnings from real cases worldwide. This study will fill this gap and illuminate the application of the hydraulic fracturing method.

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Multilaterals: An Unconventional Approach to Unconventional Reservoirs

Cited by 3 publications

References 0 publications

Unconventional hydrocarbon resources: geological statistics, petrophysical characterization, and field development strategies

Unconventional hydrocarbon resources: geological statistics, petrophysical characterization, and field development strategies

Study on Multifunctional Drag-Reducing Suspension Agents

A Review of Hydraulic Fracturing and Latest Developments in Unconventional Reservoirs

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