Results 41 to 50 of about 394 (185)

Modeling and Dynamic Performance Analysis of Hydraulic Top Drive Main Transmission System with Long Hydraulic Pipelines

Geofluids, Volume 2022, Issue 1, 2022., 2022
Hydraulic top drive is the main power component used to drive drilling tools rotating to drill a hole for drilling rigs. Its main transmission system was built with hydraulic power source and hydraulic actuators. During the drilling procession, the hydraulic top drive is mounted on a derrick, and moving along its vertical guide rails.
Yuanling Shi, Pingsong Zhang, Shijin Li
wiley   +1 more source

Nanofluid impact on fluid interaction and migration characteristics for enhanced oil recovery in Baikouquan tight glutenite [PDF]

, 2023
Nanofluids have broad prospects in enhancing the oil recovery of reservoirs with low porosity, low permeability, high capillary pressure and low oil recovery.
Xu, Liang, Li, Qi, Tan, Yongsheng, Chen, Quan, Cao, Xiaomin, Myers, Matthew   +5 more
core   +2 more sources

[Retracted] Integrated Design Technology of Geological Engineering for Pressure Flooding and Water Injection in Low Permeability Reservoirs: Take the Reservoir of Keshang Formation in Wu2 East Area as an Example

Journal of Chemistry, Volume 2022, Issue 1, 2022., 2022
The objective factors of low permeability reservoir determine that there is obvious starting pressure gradient in waterflooding development, and the injection pressure is high. Conventional waterflooding has the technical bottleneck of “no injection and no flooding.” It highlights the development contradictions such as serious under‐injection, rapid ...
Ming Qin, Chao Chen, Qingsen Yu, Zhenping Liu, Zhibo Liu, Hanlie Cheng, Fahim Theon, Rabia Rehman   +7 more
wiley   +1 more source

Geotechnical Characteristic Assessments of Floodplain Soils Using SCPTU Data in Nanjing, China

Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022
In order to improve the understanding of such floodplain sediments and determining the validity of the tests, an extensive series of multifunctional seismic piezocone tests with pore pressure dissipation phase have been performed and supplemented with conventional borings, standard penetration, laboratory testing, and so forth.
Mingfei Zhang, Liyuan Tong, Qiang Wang, Xianze Cui   +3 more
wiley   +1 more source

Petrology, Physical Properties, and Diagenetic Characteristics of Glutenite Reservoir: An Example from the Upper Urho Formation in Zhongguai Salient, Junggar Basin, China [PDF]

, 2022
The Upper Urho Formation on the northwest margin of the Junggar Basin is a key formation for oil and gas exploration. Based on the core observation, combined with the analysis of cast thin section, scanning electron microscope, energy dispersive spectrum,
Wenjun He, Youlun Feng, Kang Zhao, Changming Zhang, Liliang Huang, Jin Pan, Qi Shuang   +6 more
core   +1 more source

Application of Facies Controlled Prestack Inversion Technology in Prediction of Deep Tight Gas in Continental Faulted Basin

Geofluids, Volume 2022, Issue 1, 2022., 2022
It is difficult to predict tight sandstone gas in continental rift basin because of complex deep structure, fast transformation of sedimentary facies, large lateral variation of reservoir thickness, and tight and strong heterogeneity. Based on the petrophysical analysis of logging data, this paper improved the traditional low‐frequency establishment ...
Xiaowei Guan, Qian Meng, Chuanjin Jiang, Xuehai Chen, Rui She, Lidong Sun, Wei Sun   +6 more
wiley   +1 more source

Prediction and Analysis of PDC Bit Wear in Conglomerate Layer with Machine Learning and Finite‐Element Method

Geofluids, Volume 2022, Issue 1, 2022., 2022
Polycrystalline diamond compact (PDC) bits experience a serious wear problem in drilling tight gravel layers. To achieve efficient drilling and prolong the bit service life, a simplified model of a PDC bit with double cutting teeth was established by using finite‐element numerical simulation technology, and the rock‐breaking process of PDC bit cutting ...
Li-qiang Wang, Ming-ji Shao, Wei Zhang, Zhi-peng Xiao, Shuo Yang, Ming-he Yang, Jinjie Wang   +6 more
wiley   +1 more source

Sedimentary characteristics and controlling factors of the Ba 66 fan in Bayindulan Sag

地质科技通报, 2021
Based on the data of core, thin sections, logging and 3D seismic, the sedimentary characteristics, controlling factors and sedimentary model of Ba 66 fan are studied systematically to determine the types and characteristics of the fan.The study shows ...
Jiaheng Yue, Chuanyan Huang, Lanzhu Cao, Hongxia Wang, Ronghua Zheng, Jianping Wu, Xin Xiang, Hui Liu   +7 more
doaj   +1 more source

The secondary pore development model of coarse-grained deposition: A case study of the Xiazijie Formation in the Northwestern Margin of the Junggar Basin

Energy Exploration & Exploitation, 2023
The coarse-grained glutenite rock mass of the proximal fan delta is characterized by the blocky texture, mixing of gravels with varied sizes, high mud content, and low porosity and permeability, leading to difficulties in assessment and exploration of ...
Yongping Ma, Xianwen Zhang, Guodong Wang, Duonian Xu, Xin Guan, Shuxin Pan, Yongqiang Qu   +6 more
doaj   +1 more source

Study on the Quantitative Characterization and Heterogeneity of Pore Structure in Deep Ultra-High Pressure Tight Glutenite Reservoirs

, 2023
The precise characterization of a tight glutenite reservoir’s microscopic pore structure is essential for its efficient development. However, it is difficult to accurately evaluate using a single method, and its microscopic heterogeneity is not ...
Guofeng Wang, Xiaoxing Shi, Ninghong Jia, Haibo Li, Meng Du, Shuo Yang, Zhengming Yang, Chun Feng   +7 more
core   +1 more source