第34卷第2期 2017年3月
钻井液
究
井液
号
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3969/j.issn.1001-5620.2017.02.003
Vol. 34 No. 2 Mar.2017
FLAT-PRO深水恒流变合成基钻并液及其应用
胡文军，
向雄，
杨洪烈
（中海油田服务股份有限公司油田化学事业部，广东湛江524057）
湖文军，
向雄，
.FLAT-PRO
板益
HU Wenjun, XIANG Xion fluid in deepwater operation[.
摘要
店钻井的！
发 LS-A
钻进过程 296PF-HFR
美链
中图分类号：
TE254.3
YANG
恒源
文献标识码：
成基黏井波受其属所
application
Frme
文章编号
钻井液与完井液，2017，34（2）：15-20
AT-PRO constant rheology synthetic base drilling
15-20
水钻井液提出
重各速水其有恒南苏 +
AT-PRU
钻开开钻
FAT-PRO
足逆本站井的要：
1001-5620（2017）02-0015-06
Research and Application of FLAT-PRO Constant Rheology Synthetic Base Drilling Fluid in
DeepwaterOperation
HU Wenjun, XIANG Xiong, YANG Honglic
(Division of Oilfield Chemistry, COSL, Zhanjiang, Guangdong 524057)
Abstract Technical problems encountered in deepwater drilling, such as low temperature, narrow drilling window, formation of gas hydrate by shallow natural gas and hole sloughing etc. have posed rigorous requirements to drilling fluids. Using GTL Saraline 185V as the base fluid, a deepwater synthetic base drilling fluid, FLAT-PRO, was developed based on optimizing the emulsifier, organo-clay, filter loss reducer and other additives, Laboratory evaluation results showed that FLAT-PRO had stable constant rheology at 4-65 °C. In permeability test, a permeability recovery of higher than 90% was obtained. This performed very well even when was contaminated with 10% seawater and 10% drilled cuttings. FLAT-PRO was easy to degrade, satisfying the need of environmental protection. An offshore well, LS-A, drilled in South China Sea, with water depth of 1,699.3 m, had formation (main target) temperatures between 34.6 °Cand 36 °C. The coefficient of formation pressure at the shoe of the 508 mm casing string was lower than 1.14, indicating a narrow safe drilling window. How to control ECD and mud losses were the major concerns of the drilling operation. FLAT-PRO with a density of 1.03 g/cm’ was used in spudding the well, and FSVIS was chosen to maintain the rheology of the drilling fluid. During drilling, rheological parameters of the drilling fluid were maintained as follows: FV = 50-70 s, YP = 8-15 Pa, 9, reading = 7-15, and, reading = 6-12. 2% of HFR was used in filtration control. Drilling, tripping and wireline logging were all successful performed. Filed application showed that the deepwater constant rheology FLAT-PRO drilling fluid had stable rheology at different temperatures, good inhibitive capacity, and superior lubricity, thereby maintaining low ECD during drilling and satisfying the needs for deepwater drilling.
第一作者简介：胡文军，工程师，硕士，1978年生，毕业于江汉石油学院化学工程与工艺专业，现从事钻井液与完
并液的技术管理与应用工作。电话（0759）3909815；E-mail：huwj10@cosl.com.cn。万方数据