川渝地区柱塞举升工艺研究与应用

发布时间：2018-02-24 11:51

本文关键词： 川渝地区排水采气柱塞气举配套工具现场应用　出处：《西南石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：柱塞气举工艺技术作为一种经济、安全、高效、节能的排采工艺技术,已广泛应用于川渝地区须家河、川东石炭系等气藏的出水气井中,有效的解决了出水气井的带水生产的问题,取得了较好的应用效果。由于之前实施的柱塞气举工艺井所采用的柱塞气举工具、施工设计、维护技术等基本全部引进,所实施井在施工或运行维护过程中出现异常情况时,往往因工具的采购周期、费用等问题导致工艺实施难度大,从而制约了该井生产的持续和稳定发展。为扩大柱塞气举工艺技术在川渝气井的应用范围,本文在开展柱塞气举工艺设计及工作制度优化研究的基础上,针对引进工具应用过程中出现的各类问题,研制出了系列化柱塞气举工具,通过开展现场试验,形成相应施工维护技术,取得了以下研究成果：(1)通过开展柱塞气举工艺设计及工作制度优化研究,提出了适合川渝气田柱塞气举工艺设计方法,并形成了时间、压力优化控制模式。(2)针对引进卡定器出现位移、防喷管出现渗漏等问题,自主研制了弹块式卡定器、丝扣密封防喷管等系列化柱塞气举工具,降低工具采购成本30%以上,工艺井实施周期缩短至1个月。(3)针对引进控制器无法记录传输运行参数等问题,自主研发了带远传远控功能的柱塞气举控制器,实现了柱塞气举工艺井数字化、智能化,显著提升了运行维护效率。(4)根据川渝气田气井生产特点,研究形成适合川渝气田柱塞气举标准化井口生产流程,确保柱塞稳定运行。(5)自主研制的工具和柱塞气举工艺设计方法在13口井进行了现场试验,结果表明自主研制的工具可行、安全、稳定,设计方法符合现场生产实际。累计产气量4052.36×104m3,累计排水量19045.05m3。通过自主研制的柱塞工具集成、配套及应用,降低了柱塞气举排水采气工艺实施的总费用,为该项技术的继续推广应用奠定了坚实的基础。为川渝气田三低气井、维持老气田稳产提供经济、安全、高效、稳定的排水采气工艺技术,进一步提高了气井采收率。
[Abstract]:As an economical, safe, efficient and energy saving drainage technology, plunger gas lift technology has been widely used in the outlet gas wells of Xujiahe and Carboniferous gas reservoirs in Sichuan and Chongqing areas. It has effectively solved the problem of water-carrying production of outlet gas wells, and achieved good application results. As the plunger gas lift tools, construction design, maintenance techniques and so on used in the previous plunger gas lift process wells were basically imported, When abnormal conditions occur in the process of construction or operation and maintenance, the process implementation is often difficult because of the procurement cycle and cost of the tools, etc. In order to expand the application range of plunger gas lift technology in Chuan-Yu gas well, this paper carried out the research of plunger gas lift process design and work system optimization. In view of the various problems in the application of imported tools, a series of plunger gas lift tools are developed, and the corresponding construction and maintenance techniques are formed through field tests. Through the research on the design of plunger gas lift technology and the optimization of working system, the method of gas lift technology design suitable for Sichuan and Chongqing gas fields is put forward, and the forming time is obtained. Aiming at the problems of displacement of the imported clamping device and leakage of the nozzle, a series of plunger gas lift tools, such as the slug type clamping device, the silk buckle seal nozzle and so on, have been developed independently, which can reduce the purchasing cost of the tool by more than 30%. In order to solve the problem that the imported controller can not record the transmission operation parameters, a plunger gas lift controller with remote control function is developed, which realizes the digitalization and intellectualization of the plunger gas lift process well. According to the production characteristics of gas wells in Sichuan and Chongqing gas fields, the formation of a standardized wellhead production process suitable for plunger gas lift in Sichuan and Chongqing gas fields is studied. The self-developed tool and the design method of plunger gas lift technology have been tested in 13 wells. The results show that the self-developed tool is feasible, safe and stable. The design method accords with the field production practice. The accumulative gas production amount is 4052.36 脳 104m3, and the accumulative displacement amount is 19045.05m3.Through the self-developed plunger tool integration, matching and application, the total cost of implementing the plunger gas lift drainage gas production process is reduced. It lays a solid foundation for the popularization and application of this technology, provides economic, safe, efficient and stable drainage gas recovery technology for the three low gas wells in Sichuan and Chongqing gas fields, and maintains the stable production of the old gas fields, and further improves the recovery rate of the gas wells.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE377

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