煤层气田地面集输工艺技术

发布时间：2018-11-06 21:03

【摘要】：目前中国资源紧缺,天然气开采量已无法满足日益增长的需求,而与天然气组分、热值相似的煤层气资源丰富、储量大,成为替代天然气的首选。由于煤层气具有“低压、低渗、低产”三低的特点,而且煤层气开采的区域通常为山区,地形复杂、高差大,如继续沿用传统的分散增压、集气站模式等技术,将无法降低工程成本、缩短施工时间、减少占地面积、节约操作成本。因此,需要自主研发一套适合我国煤层气环境的全新工艺技术来指导“低压、低渗、低产”的煤层气田地面建设工程。针对目前传统的地面集输工艺技术,研究出一种新的地面集输工艺技术,以实现缩短施工周期、降低投资成本、节约土地和煤层气田的规模化、效益化开发。通过现场调研对国内煤层气集输工艺技术详细分析,坚持地面建设与地下开采相结合的原则,对煤层气地面集输工艺技术大胆创新、研究、方案对比,研究出一套适合中国煤层气特点的先进、经济适用的“多点接入、柔性集输”的煤层气田地面集输工艺技术。该技术突破了统的布站模式,由原来有人值守计量站到集气站,改为无人值守阀组通过多条集气支线与集气干线形成节点,通过这个节点将连接井口的采气管线中的煤层气集中到集气干线中输往集气站。新技术取消了多个需要有人值守的计量站,简化了流程,降低了人工成本,最重要的是突破点是改善了流体流动的环境。打破了规范中对采气管线长度不宜大于5km的限制,将采气管道长度延伸到20km以上,比规范限制的长度大了3倍以上,通过现场的实际运行实现了降低工程投资、减少能耗等要求。
[Abstract]:At present, because of the shortage of resources in China, the amount of natural gas exploitation can no longer meet the increasing demand. The coal-bed methane with similar calorific value is rich in natural gas components and has large reserves, so it is the first choice to replace natural gas. Because coalbed methane has the characteristics of "low pressure, low permeability and low yield", and the region of coalbed methane exploitation is usually mountainous area, the topography is complex and the height difference is large, such as continuing to follow the traditional techniques such as decentralized pressurization, gas collecting station mode, etc. Will not be able to reduce the cost of the project, shorten the construction time, reduce the area, save operating costs. Therefore, it is necessary to develop a set of new technology suitable for China's coalbed methane environment to guide the "low pressure, low permeability, low yield" CBM field surface construction project. In view of the traditional surface gathering and transportation technology, a new surface gathering and transportation technology is developed in order to shorten the construction period, reduce the investment cost, save the scale of land and coalbed methane field, and benefit the development. Through field investigation and analysis of domestic coalbed methane gathering and transportation technology, the principle of combination of surface construction and underground mining is adhered to, and the technology of surface gathering and transportation of coalbed methane is innovated boldly, studied and compared with other schemes. This paper studies a set of advanced, economical and applicable "multi-point access, flexible gathering and transporting" technology for coalbed methane field surface gathering and transportation in China. This technology has broken through the distribution mode of the whole system, from the original station on duty to the gas collecting station, and changed the unattended valve group to form the node with the main gas collecting line through several gas collecting branch lines. Through this node, the coalbed gas in the gas pipeline connected to the wellhead is concentrated in the main gas gathering line to be transported to the gas gathering station. The new technology eliminates many metering stations that need to be manned, simplifies the process, reduces labor costs, and, most importantly, improves the fluid flow environment. It breaks the limitation that the length of gas production pipeline should not be larger than 5km in the code, and extends the length of gas pipeline to 20km, which is more than 3 times longer than the limit of code, and reduces the project investment through the actual operation of the site. Reduce energy consumption and other requirements.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE866

【相似文献】

中国期刊全文数据库 前10条

1 陈怡;王云;;轮古38井区集输工艺方案的确定[J];油气田地面工程;2006年07期

2 赵明华;周奎修;;零散区块集输工艺探讨[J];内蒙古石油化工;2006年11期

3 谈士海;;苏北油田常温集输工艺技术[J];油气田地面工程;2006年12期

4 龚科;胡常忠;梁中红;周江;;通南巴地区“三高”气井地面集输工艺特点[J];石油地质与工程;2008年02期

5 王占胜;;辽河油田稠油集输工艺优化[J];石油工程建设;2008年04期

6 杨万茹;;功图量油与简化集输工艺的应用[J];内蒙古石油化工;2011年02期

7 王忠民;胡炎兴;;稠油原油物性对集输工艺影响规律研究[J];当代化工;2011年05期

8 刘应学;黄鹤;汪益宁;周忠亚;;串接集输工艺应用效果分析[J];油气田地面工程;2012年06期

9 周建荣;袁胜;高尤;;太阳能空气源复合加热集输工艺的应用[J];石油石化节能与减排;2012年03期

10 瞿建军;赵新明;刘祥琦;栾希炜;;“三低”气田地面集输工艺适应性分析[J];中国石油和化工标准与质量;2013年01期

中国重要会议论文全文数据库 前4条

1 张瑞华;;王140边远小断块稠油油田集输工艺优化研究[A];山东石油学会稠油特稠油地面集输与处理技术研讨会论文集[C];2009年

2 王荧光;;煤层气田地面集输工艺技术[A];2011年煤层气学术研讨会论文集[C];2011年

3 刘玉;;边远小断块油田集输工艺配套技术[A];江汉油田难采储量开发技术研讨会论文集（二）[C];2007年

4 李太平;刘培林;;我国近海原油生产中的集输新工艺[A];2007年度海洋工程学术会议论文集[C];2007年

中国重要报纸全文数据库 前3条

1 郑重;锦采采用平台集输工艺[N];中国石油报;2004年

2 王辉 记者 袁英;锦采另辟蹊径寻找节气潜力点[N];盘锦日报;2007年

3 本报记者 张广泉;致力本质安全 推进持续改进[N];中国安全生产报;2014年

，

本文编号：2315461