废弃油井影响区域煤层瓦斯和硫化氢分布规律研究
Study on Distribution Law of Coal Seam Gas and Hydrogen Sulfide in Area Affected by Abandoned Oil Wells
-
摘要: 为了充分掌握废弃油井影响区域煤层瓦斯和硫化氢的分布规律,通过理论分析和现场考察,得到了废弃油井影响区域煤层瓦斯和硫化氢的赋存状态、原始分布以及采动涌出分布规律。研究结果表明:油井套管破损或者油井本身为裸眼井时,在气体压力(浓度)作用下,石油储层中的H2S、CH4等气体逐渐逸散至煤系地层,并且吸附在煤层中;煤体中的硫化氢主要以吸附状态存在的,并且只有在采动影响下才会大量释放;废弃油井影响区域钻孔内硫化氢浓度分布与采动硫化氢涌出浓度变化趋势一致,越靠近废弃油井中心越高,远离油井时逐渐降低;煤层瓦斯含量沿油井中心距离的分布总体呈现幂函数降低的趋势,采动期间瓦斯涌出浓度分布与硫化氢涌出浓度分布的变化趋势一致。Abstract: In order to fully grasp the characteristics and distribution of coal seam gas and hydrogen sulfide in the affected area of abandoned oil well, through theoretical analysis and field investigation, the occurrence state, original distribution and mining-induced emission rule of gas and hydrogen sulfide in coal seam in the affected area of abandoned oil well were obtained. The results show that, under the action of gas pressure (concentration), when the casing is broken or the well itself is open hole, a large amount of hydrogen sulfide, methane and other gases in the oil reservoir will gradually escape to the coal-bearing strata and adsorb in coal seam. Hydrogen sulfide in coal mainly exists in the adsorption state, and only under the influence of mining will be released in large quantities. The concentration distribution of hydrogen sulfide in boreholes in the affected area of abandoned oil well was consistent with that of hydrogen sulfide gushing from mining and the closer to the center of the abandoned well, the higher it was, and the lower it was as it moved away from the well. The distribution of gas content in coal seam along the center distance of oil well shows a trend of power function decreasing and the concentration distribution of gas emission during mining is consistent with that of hydrogen sulfide emission.
-
Keywords:
- abandoned well /
- gas /
- hydrogen sulfide /
- occurrence law /
- distribution law
-
-
[1] 刘奎.综掘工作面硫化氢分布规律及泡沫治理技术[J].煤炭科学技术,2017,45(2):71-75. [2] 路露.不同煤级煤对H2S的吸附性实验研究[D].徐州:中国矿业大学,2014. [3] 薛景战,傅雪海,范春杰,等.不同煤级煤对H2S气体的吸附差异及吸附模型[J].煤田地质与勘探,2016, 44(6):75-78. [4] 苗永春,付玉凯.煤矿硫化氢赋存机理及综合治理方法研究[J].煤炭技术,2015,34(3):227-230. [5] 傅雪海,何也,刘小辉,等.乌鲁木齐西山井田原位煤层瓦斯中H2S含量的影响因素及成因分析[J].中国煤炭地质,2015,27(1):28-30. [6] 马忠辉.新疆部分煤矿硫化氢赋存机理危害治理研究[J].煤炭工程,2017,49(S2):133. [7] 姚亚虎,黄中峰,刘军.急倾斜特厚煤层硫化氢涌出规律及控制技术研究[J].煤炭工程,2017,49(1):56. [8] 孟庆安.煤层注碱治理硫化氢工艺参数研究[J].煤矿安全,2017,48(11):17-20. [9] 蒋新军.急倾斜厚煤层采动时硫化氢涌出运移特征研究[J].煤炭科学技术,2017,45(S1):139-142. [10] 王坤.乌东煤矿北区硫化氢防治技术研究[J].中州煤炭,2015(11):49-51. [11] 靳华,马兴华,张刚,等.废弃石油井对煤矿采掘活动的危害及治理技术研究[J].神华科技,2018,16(5):26-30. [12] 马智,张刚,马兴华,等.煤矿井田内废弃油井风险分类及治理方案的选择[J].煤田地质与勘探,2018,46(S1):97-99. [13] 周东,周学军.双马煤矿H2S气体来源初步分析及防治技术[J].神华科技,2017,15(9):25-28. -
期刊类型引用(14)
1. 侯涛. 斜沟煤矿16500工作面注NaHCO_3治理H_2S技术研究. 煤. 2023(02): 16-20 . 
百度学术
2. 刘宁. 斜沟煤矿23108材料巷综掘面硫化氢治理技术研究. 煤. 2023(04): 5-9 . 百度学术
3. 彦鹏，王晓琪. 废弃油井影响范围内治理瓦斯和硫化氢的探索. 山西焦煤科技. 2023(09): 49-52+56 . 百度学术
4. 马兴华，黄光利，冉庆雷，林府进，肖江. 煤炭与石油资源重叠区域废弃油井危害分类及防治技术研究. 矿业安全与环保. 2022(04): 163-168+175 . 百度学术
5. 王成，彦鹏. 双马煤矿含硫煤层硫化氢治理研究分析. 煤矿现代化. 2022(06): 38-41+45 . 百度学术
6. 刘俊，赵凯，刘奎. 急倾斜特厚煤层硫化氢气体抽放效果分析. 中国煤炭. 2021(01): 71-76 . 百度学术
7. 张刚. 基于模糊综合评价法的煤矿废弃油井风险分类及灾害防治技术. 科学技术与工程. 2021(10): 3964-3971 . 百度学术
8. 毕建乙. 综掘面泡沫治理硫化氢工艺参数研究. 煤. 2021(08): 1-4+13 . 百度学术
9. 陶恩生，黄光利. 受废弃油井影响综采面硫化氢涌出治理工艺研究. 内蒙古煤炭经济. 2021(20): 143-145 . 百度学术
10. 惠永福，李丹丹. 掘进工作面硫化氢涌出运移规律研究及COMSOL数值解算. 华北科技学院学报. 2020(01): 34-40 . 百度学术
11. 孙小平，黄光利. 受废弃油井影响综采工作面H_2S综合治理技术应用研究. 能源科技. 2020(08): 16-20 . 百度学术
12. 刘忠全，黄光利，马灵军，程建圣. 受废弃油井影响的采煤工作面有害气体运移规律及防控技术. 煤炭工程. 2020(11): 70-74 . 百度学术
13. 马兴华，黄光利，王振. 煤油资源重叠区煤矿开采硫化氢灾害防治体系研究与应用. 矿业安全与环保. 2020(06): 63-68 . 百度学术
14. 彦鹏，杨天兴. 综采工作面废弃油井附近瓦斯分布规律及防治措施研究. 内蒙古煤炭经济. 2019(23): 10-11 . 百度学术
其他类型引用(4)
计量
- 文章访问数: 63
- HTML全文浏览量: 0
- PDF下载量: 0
- 被引次数: 18
下载:
