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Application of Thermal Resistant Gemini Surfactants in Highly Thixotropic Water-in-oil Drilling Fluid System

Open Chemistry, 2019
Traditional water-in-oil drilling fluids are limited by their shear thinning behavior. In this article, we propose the synthesis of a thermal resistant quaternary ammonium salt gemini surfactant DQGE-I. This surfactant was synthesized using monomers such
Liu Yonggui, Zhang Yang, Yan Jing, Song Tao, Xu Yongjun   +4 more
doaj   +1 more source

Numerical simulation and process optimization of multi-round fracturing in deep coalbed methane wells in the Linxing-Shenfu block

Meitian dizhi yu kantan
Objective Deep coalbed methane (CBM) holds considerable resource potential. However, deep CBM reservoirs exhibit high in-situ stresses, while deep coals feature strong plasticity and heterogeneity.
Yu LI, Liang ZHANG, Yunyun LI, Qi AN, Xuesong FENG, Tian LAN, Ji YU, Xin LIU   +7 more
doaj   +1 more source

An efficient surrogate-assisted hybrid optimization framework for polymer flooding management

Journal of Petroleum Exploration and Production Technology
Reservoir injection-production optimization is critical for enhancing oil recovery in high-water-cut mature fields. Polymer flooding improves development efficiency by increasing fluid viscosity and controlling mobility, yet its optimization faces ...
Gaocheng Feng, Kai Zhang, Huan Wan, Weiying Yao, Zhiyong Wei, Qiuyue Chen, Ang Li   +6 more
doaj   +1 more source

The Application of an Oil-Based Drilling Fluid with Strong Plugging Capacity in Pilot Test Shale Oil Wells in Qibei Area

Zuanjingye yu wanjingye
The proved undeveloped shale oil reserves in block Qibei of Dagang oilfield are still very high and their burial depths can be 4,500 m or deeper. This oil and gas enrichment area is located in the Shahejie reservoir which has high content of clays as ...
Hong MA, Tao ZHUANG, Fei WEN, Leilei WANG, Xiaochen LI, Anliang CHEN, Yu WANG   +6 more
doaj   +1 more source

Development and Plugging Mechanism of High Strength Epoxy Resin-Based Plugging Agent Used in Offshore Oil and Gas Wells with Sustained Annular Pressure

Zuanjingye yu wanjingye
The problem of annular pressure buildup is especially prominent in offshore high temperature and high pressure oil and gas wells, which is prone to causing leakage, corrosion and failure of wellbore structure, thereby seriously endangering operational ...
Yanhui SU, Zhizhen LI, Binglei HU, Yunfei ZHANG, Peng GUI, Yuxing JIANG, Xueli GENG   +6 more
doaj   +1 more source

Experimental study on shale-breaking of special-shaped cutter PDC bit

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
To enhance the drilling efficiency and extend the service life of PDC (Polycrystalline Diamond Composite) bits in shale formations, this study delves into the rock-breaking mechanisms of special-shaped cutters through a comprehensive experimental ...
Chunliang Zhang, Xin Yang, Zhaoliang Zhu, Xiaohua Ke, Zhaofeng Zhang, Hua Luo, Yong Ma, Dongdong Song   +7 more
doaj   +1 more source

Design and Development of Multi-Parameter Long-Term Monitoring Cable Tube Structure in Underground

Cejing jishu
In order to solve the problem that only distributed optical fiber temperature sensing technology (DTS) parameter monitoring can be carried out in the current ultra-high temperature fiber optic long-term monitoring technology for offshore heavy oil ...
ZOU Qi, XIN Ye, LIU Zhilong, DING Pengfei, LIU Fengxun, QIAO Dekang, YUAN Weijie   +6 more
doaj   +1 more source

Influence of Pore Structure on Methane Adsorption in Deep Coal Reservoirs of the Linxing-Shenfu Block, Eastern Margin of the Ordos Basin

Yankuang ceshi
An inadequate understanding of the pore structure in coal reservoirs has long been a key constraint on the exploration and development of deep coalbed methane.
Jianqi CHEN, Weiqiang HU, Yangbing LI, Xueqing LIU, Litao MA, Panpan LI   +5 more
doaj   +1 more source

Dynamic response of aerodynamic flutter of blooie line during gas drilling in mountain areas

AIP Advances
Gas drilling technology remains a superior method for discovering and protecting oil and gas reservoirs in the petroleum exploration and development industry. However, its widespread application and further advancement have been significantly hindered by
Dianchen Liu, Peng Yang, Ke Deng, Shijie Tian, Hai Yan, Hongtao Li   +5 more
doaj   +1 more source

Green additives effectiveness in water-based drilling mud performance: A study of pistachio shell powder, magnesium oxide, and carbon black particles. [PDF]

PLoS One
Kudapa VK, Kosasih W, Saravanan AR, Rajulapati A, Kumar K, Sivasundar V, Bandhu D, Sharma A, Kumar A, Tamyis NM.   +9 more
europepmc   +1 more source