第33卷第6期 2016年11月
钻井液与完并液
DRILLING FLUID &COMPLETION FLUID
doi: 10.3696/j.issn.1001-5620.2016.06.013
新型固井触变水泥浆体系
Vol. 33 No. 6 Nov.2016
卢海川，李洋"，宋元洪，魏继军”，朱智勇，路彦利
（1.中国石油集团海洋工程有限公司潜星公司，天津，300451；2.中国石油集团瀚海钻探第一固井公司，河北任丘，062550； 3.中国石油集团长城钻探固井公司，辽宁盘锦，124010；4.中国石油集团海钻探第二固井分公司，天津，300270）
产海川等，新型围并触变求泥案保系[]钻并减与完并液，2016，33（6]：73-78
目前油气非固并缺乏成感的触变水泥参体系，已有体系常存在触变性不够强、对温度敏略以及练合性能久佳等
摘要
间题，限制了其应用。封对双上同期，通过台成两性聚合特与无机纳未材料相结合的方式开发了一种触变剂N-1，合成的
聚合费分子量较大（6.0×10°左右）且分市较富，
甘料较高温度发挥融变作用提供了保降。
连常
下高分于量组分会活解票悦，随着温度升商落解会逐新加快，为
逸用的无机前来材料为纤总状费，在本中可以通过慢附和缓结形成网络结构从
面体现出触责性。对其微观结构进行了表征
并以其专主划制备出了一有新型融变水况浆休累。室内评价实验表明，该本
%家单变性强，并具有一定的漏作用，不加压时儿乎罕安生覆失，在50C、2.1MPa下加量从1.0%升别1.5%时，最失量从380mL降为0，其愈变性随度升高不但没变爵反面有所增强，
，且其失术量低（40mL），强度高（62%下的24h强
度为31.6MPa）。该体系克了需配触变水泥体系存在的不足，综合性能良好，可满足施工要求。
图并：触变剂：融交水混浆；合成聚合衡；纳来村料：综台性能
关键词
中图分类号：TE256.6
文献标识码：A
文章编号：1001-5620（2016)06-0073-06
ANovelThixotropicWellCementingSlurry
LU Haichuan', LI Yang', SONG Yuanhong, WEI Jijun', ZHU Zhiyong', LU Yanli'
2. The First Cementing Branch of CNPC Bohai Drilling Engineering Company Limited, Renqiu, Hebei 062550
3. The Cementing Branch of CNPC Greatwall Drilling Company,Parjin,Liaoning 124010;
4. The Second Cementing Branch of CNPC Bohai Drilling Engineering Company Limited, Tianjin 300270)
Abstract Mature thixotropic cement slurries are seldom seen in China presently. Slurries commonly used in oilfields are of weak thixotropy, temperature sensitive, and have poor overall properties. To solve these problems, a thixotropic agent, N-1, has recently been developed by combining a synthesized amphoteric polymer and an inorganic nano material. The amphoteric polymer has high widely distributed molecular weight (MW, about 6.0 × 10°). At room temperatures, the high MW polymer molecules dissolve very slowly, and the dissolution becomes fast as temperature rises, This feature ensures the amphoteric polymer The inorganic nano material selected is a fibrous material, which forms a network in water through adsorption and entanglement. N-1 was characterized for its microstructure, and was used as main additive to formulate a novel thixotropic cement slurry. Laboratory evaluation indicated that the cement slurry had strong thixotropy and did not lose without the action of pressure. At a pressure of 2.1 MPa, a cement slurry treated with 1.0%N-1 to 1.5%N-1 had volume of loss from 380 mL down to 0 mL. At clevated temperatures, the thixotropy of the N-1 treated cement was enhanced, instead of weakened, and had low filter loss (40 mL) and high strength (aged at 62 C for 24 hours, the strength was 31.6 MPa.) Compared with conventional cement slurries, this cement slurry has strong thixotropy and good overall properties, and can satisfy the needs of well cementing.
Key words Thixotropy; Thixotropic cement slurry; Synthesized polymer; Nano material; Overall property
目前触变水泥浆的研究还处于起步阶段，国外
已有性能相对较好触变水泥浆体系，且实际应用也
第一作者简介：卢海川，1985年生，工程师，2012毕业于天津大学材料学专业获硕士学位，主要从事固并材料和水
泥案体系的研究。电话（022）66310332；E-mail：luhc@cnpc.com.cn。万方数据