Results 31 to 40 of about 62,857 (347)

Effect of nano pour point depressant on the flow properties of the waxy crude oil from Changqing Oilfield [PDF]

E3S Web of Conferences, 2021
In this paper, graphene oxide (GO) was modified with alkyl amidopropyl diethanolamine to obtain a nano pour point depressant (GO-PPD), which was used to improve the flowability of the waxy oil extracted from Changqing Oilfield, China.
Wen Huatao, Zhang Songzhao, Lian Yubo, Zhao Zhiguang, Wang Weibo, Wei Yajun, Duan Yu, Dong Sanbao   +7 more
doaj   +1 more source

Microscopic mechanism of fracturing fluid imbibition in stimulated tight oil reservoir

Journal of Petroleum Science and Engineering, 2021
The imbibition of fracturing fluid is of great significance to improve the development of fractured tight oil reservoirs. Understanding the micro-characteristics of fracturing fluid imbibition is necessary to improve the imbibition efficiency.
Heng Zheng, Ruiquan Liao, N. Cheng, Shan-zhi Shi   +3 more
semanticscholar   +1 more source

Three dimensional characterization and quantitative connectivity analysis of micro/nano pore space

Petroleum Exploration and Development, 2016
Evaluation is performed on pore connectivity of unconventional reservoirs using 3-D FIB-SEM imaging characterization and digital rock techniques. 3-D images are first obtained by FIB-SEM device and then transformed into digital pore structure model ...
Liang SUN, Xiaoqi WANG, Xu JIN, Jianming LI, Songtao WU   +4 more
doaj   +1 more source

Progress and development directions of shale oil reservoir stimulation technology of China National Petroleum Corporation

Petroleum Exploration and Development, 2021
By reviewing the development history of shale oil reservoir stimulation technology of PetroChina Company Limited (PetroChina), we have systematically summarized the main progress of shale oil reservoir stimulation technology of CNPC in five aspects ...
Qun LEI, Dingwei WENG, Shengchun XIONG, Hanbin LIU, Baoshan GUAN, Qiang DENG, Xuemei YAN, Hongbo LIANG, Zeyuan MA   +8 more
doaj   +1 more source

A productivity prediction method for multi-fractured horizontal wells in tight oil reservoirs considering fracture closure

Journal of Petroleum Exploration and Production Technology, 2022
The closure fracture phenomenon increases the complexity of well testing and reduces the accuracy of productivity forecasts when tight oil reservoirs are exploited. However, most existing productivity models tend to ignore this. Therefore, a productivity
Xinchen Gao, K. Guo, Peng Chen, Haoran Yang, Guowei Zhu   +4 more
semanticscholar   +1 more source

Characteristics of lacustrine shale porosity evolution, Triassic Chang 7 Member, Ordos Basin, NW China

Petroleum Exploration and Development, 2015
With low mature Triassic Chang 7 Member shale samples from the Ordos Basin as study object, the 3-D porosity evolution with temperature increase and its main controlling factors are analyzed based on the physical modeling under high temperature ...
Songtao WU, Rukai ZHU, Jinggang CUI, Jingwei CUI, Bin BAI, Xiangxiang ZHANG, Xu JIN, Desheng ZHU, Jianchang YOU, Xiaohong LI   +9 more
doaj   +1 more source

Experimental Study on the Effect of Supercritical CO2 on Mechanical Properties and Fracture Characteristics of Longmaxi Shale

Advances in Materials Science and Engineering, 2023
Conventional hydraulic fracturing techniques typically consume large amounts of water when producing shale gas. Fracking fluids may cause environmental pollution. In contrast, supercritical carbon dioxide (scCO2) (above 31.8°C, 7.29 MPa) can displace CH4
Ran Zhang, Hao Yan, Lin Yang, Kun Liao, Lei Tao   +4 more
doaj   +1 more source

Analytical Model of Wellbore Stability Analysis of Inclined Well Based on the Advantageous Synergy among the Five Strength Criteria

Geofluids, 2023
The proper drilling mud density is vital for wellbore stability maintenance, which relies on both stress distribution on the borehole wall and rock strength.
Yufan Shi, Tianshou Ma, Dongyang Zhang, Yingjie Chen, Yang Liu, Changsong Deng   +5 more
doaj   +1 more source

Types and resource potential of continental shale oil in China and its boundary with tight oil

, 2020
Continental shale oil has two types, low-medium maturity and medium-high maturity, and they are different in terms of resource environment, potential, production methods and technologies, and industrial evaluation criteria. In addition, continental shale
Wenzhi Zhao, Suyun Hu, L. Hou, Taotao Yang, Xin Li, Bincheng Guo, Zhi Yang   +6 more
semanticscholar   +1 more source

Molecular simulation of CO2/CH4 competitive adsorption in organic matter pores in shale under certain geological conditions

Petroleum Exploration and Development, 2016
To reveal competitive absorption behavior between CH4 and CO2 in organic matter (OM) nanopores, OM pore structure was first characterized using focused ion beam−scanning electron microscope (FIB-SEM) and pore-size distribution was studied using N2 ...
Xiaoqi WANG, Zengqiang ZHAI, Xu JIN, Songtao WU, Jianming LI, Liang SUN, Xiaodan LIU   +6 more
doaj   +1 more source