Petroleum Reservoir Evaluation and Development >
2022 , Vol. 12 >Issue 4: 651 - 656
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2022.04.013
Application of circulating well flushing technology in southern Yanchuan CBM Field
Received date: 2022-04-28
Online published: 2022-09-02
During the drainage and gas production process of coalbed methane development, due to the pressure drop, the pulverized coal is prone to appear and brought into fracturing sand. At present, the pulverized coal and the deposition of fracturing sand have become the key factors restricting the continuous and stable drainage and production of coalbed methane. As the proportion of pulverized coal pump blockage in southern Yanchuan CBM Field is high, in order to effectively reduce the occurrence of this kind of operation, prolong the maintenance free period of gas wells, ensure the continuity of the production of the gas wells and cut the operation cost, a circulating well flushing device is developed and the supporting process is formulated. After the field tests, it is clear that the automatic circulation well flushing process can effectively reduce the pump inspection times of the gas well, the hollow rod automatic circulation well flushing process can effectively prolong the maintenance-free operating period of the gas well, and the pump down well flushing process can effectively improve the pump efficiency and increase the daily liquid production of the gas wells. The application results show that the CBM circulating well flushing device and supporting process are well applied in the mine, which can effectively improve the liquid flow velocity in the oil pipe, carry the sand and pulverized coal in the oil pipe to the ground, solve the pump sticking, pump plugging and pump leakage, and provide a new idea for on-site control of pulverized coal.
Xiaoping SHAO , Bin CUI , Yaru LIU , Xinhan XIE , Guanwei SONG , Lichang REN , Jiehua XU . Application of circulating well flushing technology in southern Yanchuan CBM Field[J]. Petroleum Reservoir Evaluation and Development, 2022 , 12(4) : 651 -656 . DOI: 10.13809/j.cnki.cn32-1825/te.2022.04.013
| [1] | 张英, 黄宝平, 兰天永, 等. 中国石化首个煤层气田产能建设启动[J]. 中国石油和化工标准与质量, 2013, 33(10):1. |
| [1] | ZHANG Ying, HUANG Baoping, LAN Tianyong, et al. Sinopec's first coal-bed gas field capacity construction started[J]. China Petroleum and Chemical Standard and Quality, 2013, 33(10): 1. |
| [2] | 张文洪. 延川南煤层气田修井原因分析及对策[J]. 中国煤层气, 2018, 15(2):17-19. |
| [2] | ZHANG Wenhong. Cause analysis of well workover in South Yanchuan CBM Field and countermeasures[J]. China Coalbed Methane, 2018, 15(2): 17-19. |
| [3] | 赵兴龙. QC活动在提高延川南煤层气田气井免修期中的应用[J]. 中国石油和化工标准与质量, 2019, 39(23):41-42. |
| [3] | ZHAO Xinglong. Application of QC activities in improving the maintenance free period of coalbed gas wells in South Yanchuan[J]. China Petroleum and Chemical Standard and Quality, 2019, 39(23): 41-42. |
| [4] | 蒲飞. 延川南煤层气井煤粉产生原因及主要防煤粉措施[J]. 中国石油和化工标准与质量, 2018, 38(11):106-107. |
| [4] | PU Fei. Causes of pulverized coal production in coal-bed gas wells in South Yanchuan and main measures to prevent pulverized coal[J]. China Petroleum and Chemical Standard and Quality, 2018, 38(11): 106-107. |
| [5] | 王璐, 谢相军, 赵琛. 煤层气井注水洗井工艺技术研究[J]. 中国煤层气, 2018, 15(4):22-25. |
| [5] | WANG Lu, XIE Xiangjun, ZHAO Chen. Research on water injection and well-washing technology for CBM wells[J]. China Coalbed Methane, 2018, 15(4): 22-25. |
| [6] | 李宗源, 陈必武, 李佳峰, 等. 煤层气可控水平井洗井工艺技术研究与应用[J]. 中国煤层气, 2017, 14(3):17-20. |
| [6] | LI Zongyuan, CHEN Biwu, LI Jiafeng, et al. Research and application of CBM controlled horizontal well cleanout technology[J]. China Coalbed Methane, 2017, 14(3): 17-20. |
| [7] | 张晓飞. 煤层气井煤粉产生原因及控粉措施[J]. 煤炭技术, 2021, 40(2):142-144. |
| [7] | ZHANG Xiaofei. Causes and control measures of pulverized coal in coalbed methane wells[J]. Coal Technology, 2021, 40(2): 142-144. |
| [8] | 杨林. 煤层气井煤粉产生原因和疏导对策分析[J]. 石化技术, 2017, 24(3):228+194. |
| [8] | YANG Lin. Analysis on the causes of pulverized coal production and dredging Countermeasures in coalbed methane wells[J]. Petrochemical Industry Technology, 2017, 24(3): 228+194. |
| [9] | 刘升贵, 贺小黑, 李惠芳. 煤层气水平井煤粉产生机理及控制措施[J]. 辽宁工程技术大学学报(自然科学版), 2011, 30(4):508-512. |
| [9] | LIU Shenggui, HE Xiaohei, LI Huifang. Coal powder generation mechanism and control measures in horizontal wells of coalbed methane[J]. Journal of Liaoning Technical University(Natural Science Edition), 2011, 30(4): 508-512. |
| [10] | 王旱祥, 兰文剑. 煤层气井煤粉产生机理探讨[J]. 中国煤炭, 2012, 38(2):95-97. |
| [10] | WANG Hanxiang, LAN Wenjian. Discussion on formation mechanism of coal powder in coalbed methane well[J]. China Coal, 2012, 38(2): 95-97. |
| [11] | 李袖臣, 张文, 吕洋, 等. 煤层气排采井防煤粉技术研究[J]. 湖北大学学报(自然科学版), 2021, 43(5):498-501. |
| [11] | LI Xiuchen, ZHANG Wen, LYU Yang, et al. Coal powder control technology for coalbed methane well[J]. Journal of Hubei University(Natural Science Edition), 2021, 43(5): 498-501. |
| [12] | 汤继丹, 赵文秀, 程浩, 等. 沁水盆地煤层气井排采过程中煤粉防治工艺技术探讨[J]. 中国煤层气, 2011, 8(6):22-24. |
| [12] | TANG Jidan, ZHAO Wenxiu, CHENG Hao, et al. Discussion of technique of coal powder prevention and treatment for Qinshui Basin CBM wells during dewatering and extraction process[J]. China Coalbed Methane, 2011, 8(6): 22-24. |
| [13] | 魏迎春, 张劲, 曹代勇, 等. 煤层气开发中煤粉问题的研究现状及研究思路[J]. 煤田地质与勘探, 2020, 48(6):116-124. |
| [13] | WEI Yingchun, ZHANG Jin, CAO Daiyong, et al. Research status and research ideas of pulverized coal in coalbed methane development[J]. Coal Geology & Exploration, 2020, 48(6): 116-124. |
| [14] | 张宏录, 王蓉, 王海燕, 等. 延川南煤层气排采井防煤粉工艺技术研究[J]. 油气藏评价与开发, 2017, 7(4):73-76. |
| [14] | ZHANG Honglu, WANG Rong, WANG Haiyan, et al. Research on the pulverized coal control technique of coalbed methane in southern Yanchuan area[J]. Petroleum Reservoir Evaluation and Development, 2017, 7(4): 73-76. |
| [15] | 崔彬, 刘晓, 汪方武, 等. 泡沫压裂在延川南气田深煤层气井增产中的应用[J]. 煤矿安全, 2019, 50(4):142-144. |
| [15] | CUI Bin, LIU Xiao, WANG Fangwu, et al. Application of foam fracturing in deep coalbed methane well production in South Yanchuan gas field[J]. Safety in Coal Mines, 2019, 50(4): 142-144. |
| [16] | 范华波, 薛小佳, 李楷, 等. 驱油型表面活性剂压裂液的研发与应用[J]. 石油与天然气化工, 2019, 48(1):74-79. |
| [16] | FAN Huabo, XUE Xiaojia, LI Kai, et al. Development and application of flooding surfactant fracturing fluid[J]. Chemical Engineering of Oil & Gas, 2019, 48(1): 74-79. |
| [17] | 王海燕, 赖建林, 韩倩, 等. 延川南区块煤层气井压裂技术研究[J]. 油气藏评价与开发, 2013, 3(6):72-75. |
| [17] | WANG Haiyan, LAI Jianlin, HAN Qian, et al. CBM well fracturing technology research in South Yanchuan block[J]. Petroleum Reservoir Evaluation and Development, 2013, 3(6): 72-75. |
| [18] | 张占龙, 南树泉, 曹雪健. 氮气泡沫压裂技术在延川南煤层气田深煤层井中的应用[J]. 石化技术, 2020, 27(12):119-120. |
| [18] | ZHANG Zhanlong, NAN Shuquan, CAO Xuejian. Application of nitrogen foam fracturing technology in deep coalbed wells in South Yanchuan CBM field[J]. Petrochemical Industry Technology, 2020, 27(12): 119-120. |
| [19] | 朱维耀, 刘青, 岳明, 等. 考虑支撑剂裂缝导流能力计算及缝内支撑剂运移模拟[J]. 石油与天然气化工, 2019, 48(2):75-78. |
| [19] | ZHU Weiyao, LIU Qing, YUE Ming, et al. Calculation of fracture conductivity considering proppant influence and simulation of proppant transport in fracture[J]. Chemical Engineering of Oil & Gas, 2019, 48(2): 75-78. |
| [20] | 高应运, 刘红磊, 孙婧, 等. 延川南区块煤层气整体压裂技术研究与应用[J]. 中国煤层气, 2012, 9(6):16-20. |
| [20] | GAO Yingyun, LIU Honglei, SUN Jing, et al. Research & application of integral coalbed methane fracturing technology in South Yanchuan Block.[J]. China Coalbed Methane, 2012, 9(6): 16-20. |
| [21] | 王杏尊, 刘文旗, 孙延罡, 等. 煤层气井压裂技术的现场应用[J]. 石油钻采工艺, 2001, 23(2):58-61. |
| [21] | WANG Xingzun, LIU Wenqi, SUN Yangang, et al. Field application of fracturing technology in coalbed gas well[J]. Petroleum drilling and production technology, 2001, 23(2): 58-61. |
| [22] | 邵小平, 金鑫, 蒋永平, 等. 一种煤层气井自动洗井装置:CN202021794634.6[P]. 2021-04-09. |
| [22] | SHAO Xiaoping, JIN Xin, JIANG Yongping, et al. An automatic well washing device for coalbed gas well: CN202021794634.6[P]. 2021-04-09. |
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