Results 31 to 40 of about 2,648 (49)

Experimental study on the effect of oil based filtercake on bonding strength at wellbore second interface

Natural Gas Industry B, 2021
The integrity of the oil-gas wellbore is critically depending on the quality of the binding between cement and rock materials. Weak bond between cement and formation may lead to the potential leakage of high-pressure formation fluids through cracks and ...
Kevin Nsolloh Lichinga, Athanas Christopher Ntawanga   +1 more
doaj   +1 more source

A method for predicting the build-up rate of ‘push-the-bit’ rotary steering system

Natural Gas Industry B, 2021
Push-the-bit rotary steering system can greatly improve the rate of penetration (ROP), hole conditions and hole extension length and represents the development direction of modern steering drilling technology.
Wenjun Huang, Ge Wang, Deli Gao
doaj   +1 more source

Hydrocyclone technology for breaking consolidation and sand removal of the Natural gas hydrate

Natural Gas Industry B, 2021
Natural gas hydrate is a promising substitute energy resource for the future. Currently, the inefficient sand control technology impedes the commercialization of Natural gas hydrate.
Jiwei Wu, Wenchao Zhang, Lin Zhong, Haitao Lin, Mingxun Hao, Junqiao Du, Yuan Huang   +6 more
doaj   +1 more source

Hydrogen isotope of natural gas from the Xujiahe Formation and its implications for water salinization in central Sichuan Basin, China

Journal of Natural Gas Geoscience, 2019
Based on the analysis of the molecular composition as well as carbon and hydrogen isotopes of gases from the Upper Triassic Xujiahe and other formations in the Sichuan Basin in China, by combining previous research results and regional geological ...
Yunyan Ni, Fengrong Liao, Limiao Yao, Jinliang Gao, Dijia Zhang   +4 more
doaj   +1 more source

The origin of gas in the Changxing–Feixianguan gas pools in the Longgang gas field in the Sichuan Basin, China

Journal of Natural Gas Geoscience, 2016
In this paper, the origin of natural gas in the formations of the Changxing–Feixianguan within the Longgang gas field was studied in detail using geochemical methods.
Shengfei Qin, Yu Yang, Fang Lv, Hui Zhou, Yongxin Li   +4 more
doaj   +1 more source

The Early Jurassic sedimentary records characteristics and geological significance in the northern margin of the Qaidam Basin, NW China: A study of Well Lengke-1

Journal of Natural Gas Geoscience
The Qaidam Basin began to accumulate continental deposits during the Early Jurassic period, when it was located at a geographical position of 8.8 °N latitude. The paleoclimate was characterized by a warm and humid climate zone, conducive to the formation
Dingshu Cheng, Fei Zhou, Chen Cheng, Zhengwen Jiang, Yushan Shen   +4 more
doaj   +1 more source

Geological characteristics of biogenic gas formation and direction of favorable zones in the Quaternary mudstone of the Qaidam Basin, China

Journal of Natural Gas Geoscience
Quaternary biogas is the main natural gas resource in the Qaidam Basin, where sandstone reservoirs have traditionally been the primary producers. However, reserve growth in these reservoirs has become increasingly difficult in recent years. Mudstone gas,
Jixian Tian, Zeyu Shao, Jian Li, Dekang Song, Zhou Fei, Ya'nan Li, Wei Sha, Hao Zhang, Lili Hou, Xiaoqiu Zhang, Haining Zhang, Yixuan Yang   +11 more
doaj   +1 more source

Experimental and molecular dynamics evaluation of the effect of a sulfate surfactant on the shale’s methane sorption

Journal of Natural Gas Geoscience
Shale gas has shown a great potential for exploration and development via advanced horizontal drilling and multistage hydraulic fracturing. Slickwater is a major type of fracking fluid, containing various chemical additives, water, and sand.
Hamid Sharifigaliuk, Vahid Khosravi, Mansoor Zoveidavianpoor, Syed Mohammad Mahmood   +3 more
doaj   +1 more source

Technical specifications for X80 OD 1422 mm line pipes and corresponding products

Natural Gas Industry B, 2016
The line pipes with large diameter, thick wall and high steel grade are preferred to meet the requirements of extremely high gas transmission rate (380 × 108 m3/a) in the Sino–Russian eastern route project.
Weiwei Zhang, He Li, Qiang Chi, Xinwei Zhao, Chunyong Huo, Lihua Qi, Yanhua Li, Kun Yang   +7 more
doaj   +1 more source

A calculation model of critical liquid-carrying velocity of gas wells considering the influence of droplet shapes

Natural Gas Industry B, 2018
To clarify the existence of liquid loading and optimize the production allocation in gas wells, we constructed a model for calculating the critical liquid-carrying velocity based on the equal relationship between the total surface free energy of droplets
Jie Pan, Wujie Wang, Yaoqi Wei, Junbin Chen, Liangliang Wang   +4 more
doaj   +1 more source