Results 51 to 60 of about 229 (123)

Development and Characterization of High-Strength Coalbed Fracturing Proppant Based on Activated Carbon Skeleton

Energies
To address the challenges of low permeability, high gas adsorption, and a fragile structure in coalbed methane reservoirs, this study developed a high-strength composite proppant with an activated carbon skeleton via nitric acid pretreatment, silica ...
Kai Wang, Chenye Guo, Qisen Gong, Gen Li, Xiaoyue Zhuo, Peng Zhuo, Chaoxian Chen   +6 more
doaj   +1 more source

Differentiated staged fracturing and testing for coal-tight sandstone composite reservoirs without interlayer barriers: a case study of Well WFD1

Shenzhen Daxue xuebao. Ligong ban
Coal-tight sandstone composite reservoirs without interlayer barriers are prone to interlayer fracture interference, ineffective stimulation, and difficulties in production evaluation due to strong contrasts in lithology, petrophysical properties, and in-
ZHU Disi, XUE Zong’an, HU Hong, YUE Weimin, YANG Pingzhou, CHI Huanpeng, SHI Dishi, LIU Enran, XU Qiuchen, WANG Shengjian, ZHAO Hongbo   +10 more
doaj   +1 more source

Experimental study on particle migration in propped fractures of coal seam under true triaxial stress

Meitan xuebao
During the production of deep coalbed methane (CBM) after fracturing, the output of coal fines and proppants is prone to occur, leading to a decline in well productivity.
Ruili ZHOU, Chuhao CHEN, Jun ZHENG, Yihang XIAO   +3 more
doaj   +1 more source

Fracturing with carbon dioxide: Application status and development trend

Petroleum Exploration and Development, 2014
Stimulation principles, construction techniques, equipment requirements and technical features of liquid carbon dioxide fracturing were summarized, and the existing problems and development trend of this technology were discussed.
He LIU, Feng WANG, Jin ZHANG, Siwei MENG, Yongwei DUAN   +4 more
doaj   +1 more source

ANALYSIS AND DIAGNOSTIC OF PROPPANT FLOWBACK IN THE ORITO FIELD, COLOMBIA

CT&F Ciencia, Tecnología & Futuro
Hydraulic fracturing is a conventional practice for production enhancement in low production and damaged wells. Proppant flowback has been a concern in hydraulic fracturing since proppant began to be used as fracture supporting material.
A VARELA, N SAAVEDRA
doaj  

Production Performance Analysis and Fracture Volume Parameter Inversion of Deep Coalbed Methane Wells

Energies
Deep coalbed methane development faces technical challenges, such as high in situ stress and low permeability. The dynamic evolution of fractures after hydraulic fracturing and the flowback mechanism are crucial for optimizing productivity.
Jianshu Wu, Xuesong Xin, Lei Zou, Guangai Wu, Jie Liu, Shicheng Zhang, Heng Wen, Cong Xiao   +7 more
doaj   +1 more source

Key techniques for volume fracturing of deep coalbed methane reservoirs and their applications: A case study of the Daning-Jixian block

Meitian dizhi yu kantan
BackgroundDeep coalbed methane (CBM) reservoirs generally exhibit ultra-low porosity and permeability, high stress, predominance of nanopores, and complex fracture propagation.
Shuguang LI, Xianyue XIONG, Huaibin ZHEN, Kunsen BAI, Yuan JI, Pu YUAN, Zhongbai LI, Weiping ZHU   +7 more
doaj   +1 more source

Mechanism and practice of post-fracturing soaking and pressure-controlled drainage in deep coalbed methane reservoirs

Meitan xuebao
Deep coalbed methane (also known as coalrock gas) has become a crucial growth driver for increasing natural gas production in China. Practical experience has proven that high-yield production of deep coalbed methane requires large-scale hydraulic ...
Lihong ZHOU, Xia YAN, Ming CHEN, Wei WANG, Jiyuan ZHANG, Zesong YIN, Qianli MA, Junyi SUN, Yiguang LI, Chunhu LI, Yanqing FENG   +10 more
doaj   +1 more source

Experimental Study on the Backflow Mechanism of Proppants in Induced Fractures and Fiber Sand Control Under the Condition of Large-Scale and Fully Measurable Flow Field. [PDF]

ACS Omega, 2023
Chen Y, Sang Y, Guo J, Yang J, Chen W, Tang B, Feng F, Gou X, Zhang Y.   +8 more
europepmc   +1 more source

Repetitive fracturing technology for old wells in CCL oilfield

Youqicang pingjia yu kaifa, 2019
The target exploitation interval of CCL oilfield belongs to Fuyu reservoir in the 4th member of Quantou formation of lower Cretaceous, which has the characteristics of high viscosity, poor fluidity, low pressure and low temperature.
Yanling WANG
doaj