Multiphase Flow, and Efficient Development Methodology and Technology in Unconventional Reservoirs (2nd Edition)

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 426

Special Issue Editors

School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Interests: CO2 flooding; CO2 geological sequestration; foam fluids EOR (enhanced oil recovery); heavy oil; tight oil; fracture-vuggy carbonate reservoir
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Guest Editor
College of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434000, China
Interests: chemistry flooding; gas flooding; heavy oil development; tight oil development; oil shale development; fracture-vuggy carbonate reservoir development
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Guest Editor
Department of Petroleum Engineering, Changzhou University, Changzhou 213164 China
Interests: foam fluids EOR (enhanced oil recovery); unconventional reservoirs; modeling

Special Issue Information

Dear Colleagues,

Unconventional reservoirs, including shale and tight oil and gas, heavy oil, coal bed methane (CBM), natural gas, and fracture-vuggy carbonate reservoirs, are widely distributed and abundant around the world. This is an important area for the strategic replacement and development of oil and gas resources. In contrast to conventional reservoirs, the multiphase fluid flow law and the development process in unconventional reservoirs are more complex. The pore scales of unconventional oil and gas reservoirs involve centimeter, micron, and nanometer scales. The formation environment is mostly of a high temperature, high pressure, and high salinity. The flow of a fluid in a porous medium is also a rather complicated course, combining intricate phase variations. These issues have all contributed to the difficulties involved in oil and gas development and are attracting increasing attention from academics.

This Special Issue focuses on the sustainable development of unconventional oil and gas resources, recent advances, and the challenges they are facing for sustainability. We aim to gather researchers in the aforementioned fields to highlight the current development of novel techniques; exchange the latest knowledge regarding the underlying mechanisms; present advanced algorithms for modeling and innovative experimental methods; and facilitate collaboration between researchers in different fields. We welcome the submission of both original research and review articles.

Potential topics include, but are not limited to, the following:

  • Multi-scale simulations of fluid flow in fracture-vuggy carbonate reservoirs;
  • Adsorption and desorption in shale and CBM;
  • New advances in natural gas hydrate development;
  • Gas injection assisting heavy oil development;
  • The efficient utilization of multifunctional foam fluid;
  • CO2-based enhanced oil recovery (EOR) in unconventional oil and gas reservoirs;
  • CO2 storage in abundant reservoirs.

Dr. Chao Zhang
Dr. Tengfei Wang
Dr. Xingbang Meng
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • unconventional reservoir
  • efficient development measures
  • green technologies
  • sustainability
  • carbon reduction

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Published Papers (1 paper)

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Research

13 pages, 4782 KiB  
Article
Research and Practice on Implementing Segmented Production Technology of Horizontal Well during Extra-High Water Cut Stage with Bottom Water Reservoir
by Dong Zhang, Yanlai Li, Zongchao Zhang, Fenghui Li and Hongjie Liu
Processes 2024, 12(6), 1142; https://doi.org/10.3390/pr12061142 - 1 Jun 2024
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Abstract
Bohai X oilfield has reached the extra-high water cut stage of more than 95%, dominated by the bottom water reservoir. The oilfield mainly adopts horizontal-well exploitation, with the characteristics of high difficulty and low success rate for well water plugging. To solve the [...] Read more.
Bohai X oilfield has reached the extra-high water cut stage of more than 95%, dominated by the bottom water reservoir. The oilfield mainly adopts horizontal-well exploitation, with the characteristics of high difficulty and low success rate for well water plugging. To solve the above problem, the segmented production technology of horizontal wells was developed to guide oilfield applications and tap their potential. In the segmented design stage, the horizontal section is objectively segmented by drilling condition analysis, optimally based on drilling through interlayers or permeability discrepancy formation, simultaneously combined with the numerical simulation method. When implementing measures, annulus chemical packer materials are squeezed between segments to effectively inhibit the fluid flow between the open hole and the sand-packing screen pipe. Moreover, the packers are used to seal between segments to effectively restrain the flow between the screen and the central tube, achieving the establishment of compartments. In the production process, the valve switch on the central tube can be independently controlled by a remotely adjustable method to achieve optimal production. This segmented production technology was successfully tested for the first time in Bohai oilfield. Up to now, a total of six compartment measures have been implemented, remarkably decreasing water cut and increasing oil production for horizontal wells in the bottom water reservoir. This method does not require water testing, and the optimal production section can be chosen through segmented independent production, greatly improving the success rate of water-plugging measures for horizontal wells. This technology opens up a new mode for the efficient development of horizontal wells in bottom water reservoirs and is planned to be widely promoted and applied in similar oilfields. Full article
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