第33卷第6期 2016年11月
钻井液与完井液
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3696/j.issn.1001-5620.2016.06.015
塔中碎屑岩井自愈合水泥浆固井技术
Vol. 33 No. 6 Nov.2016
田宝振，李清洁，覃毅，孙万兴，沈磊，陈大沧，张亮，周坚
（勤海钻探工程有限公司第一固井分公司，河北任丘062552）
旧宝报等，路中醇用告自念合水泥发间并技术[]钻并液与究并表，2016。33（6：84-90
摘要琴里本油田塔中区块球属举处景炸构复杂、成常性善、期性小、脆性商，钻等施工过程中并壁易跨播、剥等，
学。理子第学美市敏县毒含油层多、油层水层相服银近，
研究。采用硅骼、或轻增强付料BCE-610S、
产公常周并会在二
叠系承压能力较低、弱，地层油水同层、砂泥互层、量要求高等难点，针对这些难点，通过水泥蒙气审机理减置利BCD-210L、自念合剂BCY-200S、防常降失
本制BCG-200L，研究出了密度为1.35g/cm的领案与密度1.88g/cm的是参。该水无案体系具有稳定性舜、流动性好，零新术，失水量低（小于50mL），弹性模量接近于7GPa，抗压强度高，降审危力盟等特点。同时优化水泥紫柱结构实现平角压力固并，应用固并软件携部费高项券效审，形成了一套适合落中降通岩并围并的自意合本泥象国并技术。求中4口井固并结果星示，4口并金并封国质量合格，主力冶气层段对围优质，有效解决了举黑求碍屑普固并施工难题。
关键词辞风数并；自需台水泥案，平衡压力围并；联场应用
文献标识码：A
中图分类号：TE256
文章编号：1001-5620（2016)06-0084-07
Cementing Wells Penetrating Clastic Rocks with Self-healing Cement in Block Tazhong TIAN Baozhen, LI Qingjie, QIN Yi, SUN Wanxing, SHEN Lei, CHEN Dacang, ZHANG Liang, ZHOU Jian(The First Cementing Branch of CNPC Bohai Drilling Engineering Company Limited, Renqiu, Hebei 062552)
Abstract The clastic formations in the Block Tazhong have complex structures, poor lithological characters and toughness, and high britleness, During drilling operation, wells penctrating the clastic formation bave experienced borehole collapse and sloughing, and borehole of irregular sizes was formed. Cementing of the production casing string has long been facing with dificulties such as low formation pressure and mud losses in the Permian system, coexistence of oil and water in the same zone, interbedding of sandstonc and shale, thin sandstones and hence multiple pay zones, short distance between a pay zone and a water zone, and inter-channeling Seo suap ns upeor e msuaao uueeseao sueio auo pso o pasegoaaempue o g/cm’, and a tail slurry with density of 1.88 g/cm’ were formulated with several additives, such as silica powder, lightweight material BCE-610S, medium temperature retarder BXR-200L, drag reducer BCD-210L, self-healing agent BCY-200S and anti-channeling filter loss reducer BCG-200L, This cement slurry had good stability, mobility, zero free water, low filtration rate (filter loss 50 mL), elastic modulus near 7 GPa, high compressive strength, and ability of anti-channeling. By optimizing the composition of the cement slurry column in hole, pressure balancing during well cementing was realized, Using well cementing software, the displacing efficiency was improved. As a set of self-healing cementing technology, it has been used in 4 wells in Tazhong, all cementing jobs successful, especially the main pay zones which were cemented with excellent job quality, effectively solved the difficulties in well cementing in clastic rock formations.
Key words Well penetrating clastic rocks; Self-healing cement slurry; Wellcementing under balanced pressure; Field application
近年来，随着油田产量压力的增大及老油田产
密井及调整井，以增加产能。在塔里木盆地，目前
能的递减，塔里木油田在老油区中部部署了部分加
在碎屑岩中发现的油气藏个数大约占整个油气藏的
基金项目：中国石油集团激海钻探工程有限公司局级项目“塔里本台垒区碎屑岩图井技术研究与试验"（2015ZD12Y-2）部分研究成果。
第一作者简介：田宝振，1987年生，工程师，2012年毕业于中国石油大学（华东）并获得硕士学位，现从事固并技
术研究及现场施工工作。电话15716851252；E-mail：1410281226qq.com。万方数据