Feasibility of Multi-layer Drainage for No 3 and No 15 Coal Seams in the Fanzhuang Area
Received date: 2009-06-16
Revised date: 2009-08-21
Online published: 2010-02-10
The implement of separate layer fracturing and multiple layer drainage for coalbed methane in the multiple coal seams is an important method to reduce the costs of exploration and development, and to increase the gas production. It is important for the skillful know of the adaptive conditions to increase successful ratio. According to gas-producing characteristics of coalbed methane vertical wells, the main factors constrained multi-layer drainage in No 3 and 15 coal beds in the Fanzhuang area were discussed. The characteristics such as surrounding rock, physical property of coal reservoir and permeability after hydraulic fracture were gained from the exploration and development data in the study area. According to file of exploration and development and groundwater dynamic, the pattern of force and velocity of a current groundwater in No 3 and 15 coal bed areas were gotten. By Darcy′s law and drainage for coal bed methane wells, the adaptive regions for multi-layer drainage of coal bed methane were chosen. The early production system tested the dependability of theoretical analysis.
NI Xiao-Ming, SU Xian-Bo, LI Guang-Sheng . Feasibility of Multi-layer Drainage for No 3 and No 15 Coal Seams in the Fanzhuang Area[J]. Natural Gas Geoscience, 2010 , 21(1) : 144 -149 . DOI: 10.11764/j.issn.1672-1926.2010.01.144
［1］Zheng Dewen, Zhang Junfeng, Sun Guangbo，et al. The evaluation methodology for selecting of the coal-bed methane′s blocks and their benefits[J]. Natural Gas Geoscience, 2009,20(1):153-158.［郑得文，张君峰，孙广伯，等.煤层气项目选区及效益综合评价方法［J］.天然气地球科学，2009,20（1）：153-158.］
［2］Sun Ping, Wang Yibing.Prediction on high-permeability zones in CBM reservoir in south Qinshui basin[J]. Natural Gas Industry,2008,28(3):33-37.［孙平，王一兵.沁南煤层气藏高渗区预测［J］. 天然气工业，2008，28（3）：33-37.］
［3］Liu Honglin,Wang Bo, Wang Feng,et al. Ground stress characteristics and prediction of high productivity zones in south of Qinshui basin[J]. Natural Gas Geoscience,2007,18(6):885-890.［刘洪林，王勃，王烽，等.沁水盆地南部地应力特征及高产区带预测［J］. 天然气地球科学,2007,18(6):885-890.］
［4］Zhang Lin, Liu Chiyang, Li Zhihang,et al. Fit gas for foam fracturing in coal layer[J]. Journal of China Coal Society,2008,33(3):322-324.［张林，刘池阳，李志航，等.煤层气井水力压裂合适伴注气体的选择［J］. 煤炭学报，2008，33（3）：322-324.］
［5］Xiao Xiaochun, Pan Yishan.Numerical simulation of coalbed methane seepage flow under multi-well exploitation conditions[J]. Chinese Journal of Rock Mechanics and Engineering,2007,26(5):977-981.［肖晓春，潘一山. 多井开采条件下煤层气渗流数值模拟［J］.岩石力学与工程学报，2007，26（5）：977-981.］
［6］Sun Bin.Study on the Coalbed Methane′s Accumulative Regulation in Qinshui basin[D].Beijing:Research Institute of Petroleum Exploration & Development,2002:12.［孙斌.沁水煤层气田煤层气高产富集规律研究［D］.北京：中国石油勘探开发科学研究院，2002:12.］
［7］]Wu Xiaoming.Calculation Principle and Application of Hydraulic Fracturing About Coalbed Methane Wells[M].Wuhan:China University of Geosiciences Press,1997:21-29.［乌效鸣.煤层气井水力压裂计算原理及应用［M］. 武汉：中国地质大学出版社，1997：21-29.］
［8］China United Coalbed Methane Co., Itd. Study on Exploration and Development Technology of China′s Coalbed Methane[M].Beijing:Petroleum Industry Press,2007:176-190.［中联煤层气有限责任公司.中国煤层气勘探开发技术研究［M］. 北京：石油工业出版社，2007:176-190.］
［9］Ge Jiali.The Modern Mechanics of Fluids Flow in Oil Reservoir[M].Beijing:Petroleum Industry Press,2003:85-93.［葛家理.现代油藏渗流力学原理［M］. 北京：石油工业出版社，2003:85-93.］
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