超深超高压高含蜡凝析气井试井解堵技术  

Plugging removal technology of ultra-deep and ultra-high pressure high wax gas condensate well

作　　者：赵博勇 聂海峰[2] 谭蓓 石敏 郭景顺 潘杰 ZHAO Boyong;NIE Haifeng;TAN Bei;SHI Min;GUO Jingshun;PAN Jie(Xinjiang Huayou Oil&Gas Engineering Co.,Ltd,Korla,Xinjiang 841000,China;Research Institute of Exploration and Development,Tarim Oilfield Company,PetroChina,Korla,Xinjiang 841000,China;Zepu Oil&Gas Management Area,Tarim Oilfield Company,PetroChina,Korla,Xinjiang 841000,China)

机构地区：[1]新疆华油油气工程有限公司,新疆库尔勒841000 [2]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000 [3]中国石油塔里木油田分公司泽普采油气管理区,新疆库尔勒841000

出　　处：《油气井测试》2025年第1期73-78,共6页Well Testing

基　　金：中国石油天然气股份有限公司科技专项子课题“超深层油气藏提高采收率关键技术研究与应用”(2023ZZ14YJ04)。

摘　　要：塔里木油田库车山前超深超高压凝析气井井筒堵塞原因以及堵塞物复杂,钢丝试井过程中极易发生遇阻、遇卡等高危风险,导致井下温压资料录取风险大、难度高、成功率低。通过开展堵塞物室内实验分析研究,堵塞物成分主要是以蜡、胶质、沥青质、芳香烃为主,明确堵塞物沉积机理,筛选出可高效分解堵塞物的化学药剂沥青分散剂和溶蜡剂,并配套高压泵车和管汇确保解堵剂安全注入,形成一套适用于超深超高压气井的试井解堵技术。经现场14井次成功应用,井下温压资料录取成功率提高了约23.5%,为气田开发方案的制定提供了可靠的依据。The reasons for the blockage of the wellbore of the ultra-deep ultra-high pressure condensate gas well in front of Kuqa foreland in Tarim oilfield and the complex blockages are very easy to occur during the steel wire well test,which leads to the high risk of admission of underground temperature pressure,high difficult and low success rate.Through indoor experimental analysis and research on blockages,the components of blockages are mainly wax,gum,asphaltene,and aromatic hydrocarbons.The mechanism of blockages is clarified and the chemical agents that can efficiently decompose blockages are selected to select asphalt dispersants and waxes that can effectively decompose blockages.It is equipped with a high-pressure pump truck and pipe assembly to ensure safe injection of the deblocking agent,forming a set of well test deblocking technology suitable for ultra-deep and ultra-high pressure gas wells.After 14 wells were successfully applied on site,the success rate of admission to underground temperature pressure data increased by about 23.5%,providing a reliable basis for the formulation of gas field development plans.

关 键 词：库车山前 超深超高压 凝析气井 井筒堵塞 高含蜡 试井 解堵剂 温压资料 

分 类 号：TE353[石油与天然气工程—油气田开发工程]