第38参第4期 2016年7月
石油钻采工艺
OILDRILLING&PRODUCTION TECHNOLOGY
文章编号：1000-7393（2016)04-0540-05
DOI:10.13639/j.odpt.2016.04.026
Vol.38 No. 4 July 2016
复杂煤层气井修井原因分析及检杆工艺试验
刘国强1.2王辰龙3曹毅+胡永彪＇张康’袁少锋？
1.长安大学工程机械学院：2.中石油煤层气有限责任公司临济分公司；3.翼东油田分公司南堡作业区：
4.中国石沟西南油气田分公司勘深开发研究院
引用格式：刘国强，王展龙，曹毅，胡永彪，张康，衰少锋.复杂煤层气井修井原因分析及检杆工艺试验[】.石油钻采工艺 2016,38 4):540-544.
摘要：井筒简复杂、深度超过1100m的煤层气定向并在生产过程中修井频繁，而常规检系修并工艺难以满足实际生产需要。针对这一同题，对C区块50口煤层气并的修井原团进行了对比分析，结果表明油管漏失、系故障、轴油杆断脱是导致频繁修井的主要原图，而机械亮损和肩蚀严重是修并的主要影响因素。在此基础上针对性地提出了检杆修并这种新的作业方式，即通过修并并史分析，预测并下设备运行状态，在躺井前不动油管程，只提出轴油杆柱造行优化。检杆作业由并下设备服投状态预测，配套工艺、施工运行构成一套工艺措施，具有工艺简单、施工时间短、投入产出比高的特点。现场应用效果表明检杆工艺是一种适合复杂煤层气并的经济有效的修井技术。
关键词：煤层气井；修井原因；检杆；矿场试验；应用效果
中图分类号：TE358.4
文献标识码：B
Analysis ontheworkoverreasonsforcomplexCBM well and test on rod checkingtechnology
LIU Guoqiang,WANG ChenlongCAOYi,HU Yongbiao,ZHANGKang,YUAN Shaofeng
1. Schoof of Constnicrion Machinery, Chang'an University, Xr'an, Shaaxi 710064, China 2. Linfen Branch of PetroChina Coalbed Methane Co. Lid., Linfen, Sharxi 042000, China
3. Nanpur Operartion Districf of PebroChina Jidong Oilfeld Compary, Tangshan, Hebei 063004, China,
4. Exploration and Developmenr Research Instifufe, PebroChina Souzthwesr Oil & Gas Field Company, Chengdar, Sichuan 610051, China
Citation: LIU Guoqiang, WANG Chenlong, CAO Yi, HU Yongbiao, ZHANG Kang, YUAN Shaofeng. Analysis on the workover reasons for complex CBM well and test on rod checking technology [J ] . Oil Drilling & Production Technology, 2016, 38(4): 540-544.
Abstract: Workover is carried out frequently when complex coalbed methane (CBM) directional wells of over 1 100 m deep are in operation. However, the conventional workover technologies by pump inspection can not deal with this purpose effectively. Under this background, the reasons for the workover of 50 CBM wells in Block C were analyzed and compared. It is shown that tubing leak age, pump failure and sucker rod dropout are the main reasons for frequent workover, and mechanical wear and serious corrosion are the dominant influential factors of workover. Then, a new operation mode which is about rod testing workover, was proposed. The rod aaaoaeresasoosanea n soe construction and operation. It is characterized by simple process, short construction period and high input/output ratio. Field applications have demonstrated that the rod testing is an economical and effective workover technology suitable for complex CBM wells
Key words: coalbed methane (CBM) well; reasons for workover; rod testing; field test,; application result 基金项目：国家科技重大专项“弥尔多斯盒地东缘煤层气开发示范工程”（编号：2011ZX05062)。
第一作者：刘国强（1982-),2006年毕业于西安石油大学石油工程专业，现为长安大学机械设计及理论专业博士研究生，从事人工举升、
并下作业、采气工艺方面的研究工作。通讯地址(030000)山西省太原市小店区科技创新城。电语：0351-7078653。E-mail Igq_cbm@petrochina.com.cn