Well Production Challenges and Solutions in a Mature, Very Low-Pressure Coalbed Methane Reservoir

2010 ◽  
Author(s):  
Victoria Uduak Okotie ◽  
Robert Lloyd Moore
Keyword(s):  
Coalbed Methane ◽  
Low Pressure ◽  
Well Production ◽  
Coalbed Methane Reservoir

scholarly journals Dual diagnostic method for fracture morphology of thermal coalbed methane reservoir

2019 ◽  
Vol 23 (5 Part A) ◽  
pp. 2741-2748
Author(s):  
Xiao Pu ◽  
Dali Guo ◽  
Yunxiang Zhao
Keyword(s):  
Coal Seam ◽  
Dual Diagnosis ◽  
Coalbed Methane ◽  
Fracture Morphology ◽  
Calculation Model ◽  
Critical Depth ◽  
Well Production ◽  
Single Well ◽  
Coalbed Methane Reservoir ◽  
Coalbed Methane Production

In most thermal coalbed methane production practices, the average single well production is low and the economic benefit is low. In order to improve the production of thermal coalbed methane, this paper presents a dual diagnosis method for fracture morphology of thermal coalbed methane reservoir to improve hydraulic fracturing effect. The study is carried out as follows: firstly, improved log-log curve method to adapt to coal seam fracturing construction, secondly, establish the inclined stress calculation model of coal seam to obtain the critical depth value, and finally, combine the improved log-log method and critical depth method to form a dual diagnosis approach. Take Baiyang River in Xinjiang as an example, obtain the traffic, rock mechanics and other parameters suitable for the Baiyang River block, the fracture morphology is verified by fracturing data. The experimental results show that the approach can diagnose fracture morphology accurately. <br><br><font color="red"><b> This article has been retracted. Link to the retraction <u><a href="http://dx.doi.org/10.2298/TSCI191209454E">10.2298/TSCI191209454E</a><u></b></font>

Physical simulation of hydrodynamic conditions in high rank coalbed methane reservoir formation

2009 ◽  
Vol 19 (4) ◽  
pp. 435-440 ◽  
Author(s):  
Bo WANG ◽  
Bo JIANG ◽  
Lei LIU ◽  
Gui-qiang ZHENG ◽  
Yong QIN ◽  
...  
Keyword(s):  
Coalbed Methane ◽  
Physical Simulation ◽  
High Rank ◽  
Hydrodynamic Conditions ◽  
Coalbed Methane Reservoir

Analysis of Temperature Field Based on Hollow Sucker Rod Hot Flushing Technology

2014 ◽  
Vol 1073-1076 ◽  
pp. 2257-2262
Author(s):  
Jie Yu Du ◽  
Jiang Xie ◽  
Yu Qi Zhao ◽  
Li Peng Zhang ◽  
Rui Bin Zhu
Keyword(s):  
Heat Transfer ◽  
Temperature Field ◽  
Low Pressure ◽  
Calculation Model ◽  
Simulation System ◽  
Well Production ◽  
Transfer Theory ◽  
Heat Transfer Theory ◽  
Sucker Rod ◽  
Theory Calculation

The hot flushing is a major means of removing wax. For low pressure reservoir, it is possible to produce a large number of washing fluid flowing into the formation, which affects the well production recovery. The application of hollow sucker rod hot flushing technology can avoid fluid pouring back into the formation, and the wells can keep production. Based on the principle of hollow sucker rod hot flushing and heat transfer theory, calculation model of temperature field was established, and hollow sucker rod hot flushing simulation system was developed, which can guide flushing in oilfield.

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