第34卷第2期 2017年3月
钻井液
究
井液
号
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3969/j.issn.1001-5620.2017.02.011
Vol. 34 No.2 Mar.2017
威202H3平台废弃油基钻井液处理技术
王星媛1，2，区
欧翔1.2、日
明显森1.2
（1.油气田应用化学四川省重点实验室，四川广汉618300；2.川庆钻探工程有限公司钻采工程技术研究院，四川广汉618300）
王呈燥
欧
WangXingyuan Driling Flardd &
摘要 U
背
Xla
中图分类号：TE922
威202H3 Ming
弃油基钻井液处理技术[]-钻井液与完井液，2017，34（2】：64-69
al.Disposing Waste oil base drilling fluid from the Wei202H3 platform[J] 54-69
克量其表观粘度
13.74
基钻井液终
数来
的处理技术
转销并升
文献标识码：A
贡岩气
文章编号：1001-5620（2017）02-0064-06
DisposingWasteOilBaseDrillingFluidfromtheWei202H3Platform
WANG Xingyuan'2, OU Xiang' 2, MING Xiansen'.2
(1. Oil & Gas Field Applied Chemistry Key Laboratory of'Sichuan Province, Guanghan, Sichuan 618300;
2. Drilling & Production Technology Research Institute of CCDE, Guanghan, Sichuan 618300)
Abstract Waste oil base muds (OBMs) are disposed of presently by burial or reinjection. Potential pollution to environment and waste of large amount of mineral oil are the problems inusing these disposal methods. A study has been conducted on the recycling of waste OBMs from the Platform 202H3. The waste mud had apparent viscosity of 100-120 mPa + s, plastic viscosity (PV) of 80-100 mPa - s, yield point (YP) of 20 Pa, and 10°/10° gel strengths of 20/35 Pa/Pa The particle sizes of the mud lied between 5.59 μm and 13.74 μm Studies showed that injection of 2 m’ waste oil base mud back into the well We202H3-3, which penetrated the Longmaxi formation, the final gel strength of the oil base mud in use was increased and the YP/PV ratio became uncontrollable. Use the low quality solids from the waste OBMs, a lost control slurry (LCM muds) was prepared and successfully used in controlling mud losses occurred in the well Changning-H12-3. From these practices, it was concluded that the troubles in recycling waste OBMs lied in the large amount of particles with sizes less than 20 μm, which were difficult to remove with the solids control equipment currently available. Technologies currently available in disposing of waste OBMs will be faced with problems such as safety, large spaces required, energy consumption, transportation, environment protection, and cost. It is thus suggested that the waste OBMs be used in formulating LCM muds, which can be used in controlling mud losses in shale gas drilling, thereby reducing economic losses to some extent. It is also suggested that if supercritical CO, fluid extraction technology can be used in cost control, it will be an important technology in waste OBMs disposal. Key words Recycle; Waste drilling fluid; Oil base mud; Shale gas
基金项目：四川省科技项目“页岩气钻完井工程技术研究"（15ZC1582)。
第一作者简介：王星娱，1989年生，硕士研究生，率业于西南石油大学化学工程专业，现在从事钻井液技术研究工作。
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