川渝气区排水采气工具研制新进展  

New progress in the R & D of water drainage gas recovery tools in Sichuan and Chongqing gas zones

作　　者：叶长青[1] 熊杰[1] 康琳洁 彭杨[1] 陈家晓[1] 

机构地区：[1]中国石油西南油气田公司采气工程研究院

出　　处：《天然气工业》2015年第2期54-58,共5页Natural Gas Industry

摘　　要：近年来,川渝地区排水采气工艺已从老探区中浅层气藏逐步向深井、酸性、油水气三相共存的气藏拓展,由单一工艺发展为组合工艺,常规优化设计发展为软件包系统决策并引入了经济评价,这同时也对现有的排水采气工具提出了新的挑战。通过技术攻关,目前排水采气的相应配套工具、装备研发及应用也取得了长足的发展。气举工具由常规发展至高抗硫,由偏心式发展至同心投捞式,气举阀充氮压力达25 MPa,抗外压达90 MPa;自主研发了具有国内领先水平的电潜泵专用井口装置和远程监调控系统;柱塞举升工具配套实现国产化,自主创新研发了带远程远控功能的柱塞控制器和投、捞可靠方便高效的弹块式卡定器缓冲弹簧,以及测温测压柱塞等工具;连续油管悬挂器、大通径操作窗及取出连续油管堵塞器、双瓣式单流阀性能参数也达到了较高水平;高压井口驱动头和油管锚的优选大幅提升了螺杆泵应用效果和范围。上述排水采气工具及装备的集成创新,有效地扩大了排水采气工艺在川渝气区的适用范围。In recent years, the implementation scope of drainage recovery technology in Sichuan and Chongqing gas zones has extend ed from medium and shallow reservoirs in mature fields to deep, acidic and oil water gas reservoirs and this technology has been de- veloped into a combined process. Conventional optimal design has been developed into a software package system combined with eco nomic evaluation. Moreover, new challenges appeared in the existing tools for drainage gas recovery. Through unremitting technolog ical breakthroughs, great strides were made in the development and application of assorted tools and equipment for drainage gas re covery. Gas lift tools were developed from the conventional model to a high sulfate-resistant model, from a side-pocket type to a con centric throwing in and pulling type. The nitrogen pressure of a gas lift valve was 25 MPa, and external pressure resistance was up to 90 MPa. Independent research resulted in the development of an electric submersible pump for the dedicated wellhead equipments and a remote monitoring and control system which were ranked at domestic leading level. Domestication was realized of the plunger gas lift tools realized localization. Independent innovation brought about the development of a plunger controller with remote control function, a reliable and efficient throw in block-type locking device with a buffer spring, a temperature and pressure measuring plunger, and other tools. The performance parameters of a coiled tubing hanger, a large-diameter operating window, a coiled tubing packer, and double-disc check valves all reached a high level. The optimization of a high-pressure wellhead driving head and a tubing anchor dramatically improved the effect and scope of the application of the progressive cavity pump. These integrated innovations of the tools and equipment have effectively expanded the application range of water drainage and gas recovery technology in Sichuan and Chongqing gas fields.

关 键 词：川渝气区 排水采气 气举 电潜泵 柱塞 连续油管 螺杆泵 装备 进展 

分 类 号：TE37[石油与天然气工程—油气田开发工程]