Aiming at the problem of oily sludge polluting the environment produced in the process of heavy oil production, an oily sludge coagulant was developed with baked clay and hydraulic lime as the main raw materials, and an oily sludge adjusting and blocking agent that can be coagulated and solidified in the oil layer was formulated with oily sludge coagulant and oily sludge as the main components, so that it can achieve the purpose of harmlessness of oily sludge and utilization of resources.The factors affecting the blocking performance of the oily sludge adjusting and blocking agent were analyzed and optimized, and the adjusting and blocking performances were evaluated through XRD detection and compressive strength. The study shows that the adjusting and blocking agent has the advantages of long gel time, good construction safety, pumpability and appropriate structural strength; when the mass fraction of oily sludge coagulant is above 17%, the core blocking rate is above 98%, and the breakthrough pressure is above 20 MPa, which has high blocking strength; at the same time, the adjusting and blocking agent is also a new technology of resourceful use of solid waste, which is in line with the national policy of circular economy and green development. Oily sludge coagulant technology effectively solves the environmental pollution problem caused by oily sludge discharge, providing a new means for comprehensive oilfield management and reducing production costs.
Cai Li
,
Liu Qingwang
,
Fan Zhenzhong
,
He Chunfang
,
Zhang Ming
,
Wang Jiao
,
Guo Hao
,
Li Qingyang
. Development and Performance Evaluation of Oily Sludge Coagulant for Heavy Oil Production[J]. Special Oil & Gas Reservoirs, 2024
, 31(1)
: 137
-143
.
DOI: 10.3969/j.issn.1006-6535.2024.01.018
[1]HAN M L,ZHANG J,CHU W,et al.Research progress and prospects of marine oily wastewater treatment:a review[J].Water,2019,11(12):2517.
[2]ELMOBARAK W F,HAMEED B H,ALMOMANI F,et al.A review on the treatment of petroleum refinery wastewater using advanced oxidation processes[J].Catalysts, 2021,11(7):782.
[3]张旺.安塞油田含油污泥处理工艺的探索与实践[J].天然气与石油,2018,36(4):42-46.
ZHANG Wang.Exploration and practice of oily sludge treatment process in Ansai Oilfield[J]. Natural Gas and Oil,2018,36(4):42-46.
[4]齐加胜,黄欣欣.含油污泥工程化处理工艺技术研究[J].石油化工应用,2018,37(1):29-32.
QI Jiasheng,HUANG Xinxin.Research on engineered treatment process technology for oily sludge[J].Petrochemical Industry Application,2018,37(1):29-32.
[5]ZUBAIDY E,ABOUELNASR D M.Fuel recovery from waste oily sludge using solvent extraction[J].Process Safety & Environmental Protection,2010,88(5):318-326.
[6]贾文龙,宋硕硕,李长俊,等.超临界CO2萃取含油污泥中原油的多相平衡模型[J].石油学报(石油加工),2023,39(3):641-649.
JIA Wenlong,SONG Shuoshuo,LI Changjun,et al.A multiphase equilibrium model of supercritical CO2 extraction of crude oil in oily sludge[J].Acta Petrolei Sinica(Petroleum Processing Section),2023,39(3):641-649.
[7]JING G L,CHEN T T,LUAN M M.Studying oily sludge treatment by thermo chemistry[J].Arabian Journal of Chemistry,2016,9(S1):S457-S460.
[8]王君.基于热处理的含油污泥资源化利用技术[D].杭州:浙江大学,2018.
WANG Jun.Resource recovery from oily sludge through thermal treatment technology[D].Hangzhou:Zhejiang University,2018.
[9]RAMASWAMY B,KAR D D,DE S.A study on recovery of oil from sludge containing oil using froth flotation[J].Journal of environmental management,2007,85(1):150-154.
[10] PALOMOA A,GRUTZECK M W,BLANCOA M T.Alkali-activated fly ashes:a cement for the future[J].Cement & Concrete Research,1999,29(8):1323-1329.
[11] PALOMO A,ALONSO S.Alkali activated fly ashes new cementitious materials for concrete[J].Betonwerk und Fertigteil-Technik/Concrete Precasting Plant and Technology,2000,66(11):68-75.
[12] SWANEPOEL J C,STRYDOM C A.Utilisation of fly ash in a geopolymeric material[J].Applied Geochemistry,2002,17(8):1143-1148.
[13] DUXSON P,PROVIS J L.Designing precursors for geopolymer cements[J].Journal of the american ceramic society,2008,91(12):3864-3869.
[14] VAN JAARSVELD J G S,VAN DEVENTER J S J.The effect of metal contaminants on the formation and properties of waste-based geopolymers[J].Cement and Concrete Research,1999,29(8):1189-1200.
[15] ELIMBI A,TCHAKOUTE H K,NJOPWOUO D.Effects of calcination temperature of kaolinite clays on the properties of geopolymer cements[J].Construction and Building Materials,2011,25(6):2805-2812.
[16] 肖力光,刘长宇,李元超,等.土聚水泥结构与机理研究[J].吉林建筑工程学院学报,2011,28(6):38-41.
XIAO Liguang,LIU Changyu,LI Yuanchao,et al.Research on structural and mechanism of geopolymeric cement[J].Journal of Jilin Jianzhu University,2011,28(6):38-41.
[17] 李燕孙,金文辉,王群,等.粉煤灰等工业废料制备土聚水泥的试验研究[J].陶瓷学报,2011,32(4):571-576.
LI Yansun,JIN Wenhui,WANG Qun,et al.Experimental research on preparation of geopolymeric cement with fly ash and other industrial waste[J].Journal of Ceramics,2011,32(4):571-576.
[18] 张文豪,谢建斌,刘道炎,等.水泥-高钙粉煤灰改良泥炭质土的宏细观试验研究[J].辽宁工程技术大学学报(自然科学版),2020,39(1):41-50.
ZHANG Wenhao,XIE Jianbin,LIU Daoyan,et al.Macroscopical and mesoscopic study on improving peaty soil with cement-high calcium fly ash[J].Journal of Liaoning Technical University(Natural Science),2020,39(1):41-50.
[19] 林东,詹国良,沈云泽,等.活性粉末混凝土的聚合物改性及其机理分析[J].新型建筑材料,2016,43(11):20-22.
LIN Dong,ZHAN Guoliang,SHEN Yunze,et al.Study on the modification of reactive powder concrete (RPC) with polymer and its mechanism[J].New Building Materials,2016,43(11):20-22.
[20] 韩邦青.碱激发黏土质工业废渣生产建筑胶凝材料的研究[D].烟台:烟台大学,2007.
HAN Bangqing.Study on alkali-activated building coagulation materials with industrial waste residue[D].Yantai:Yantai University,2007.
[21] 沈彦奇.高岭土黏土、石灰石活化方法及LC3水泥性能研究[D].扬州:扬州大学,2022.
SHEN Yanqi.Research on activation methods of kaolinate clay,limestone and LC3 cement performance[D].Yangzhou:Yangzhou University,2022.
[22] 李占国.全活性石灰强化烧结技术基础及其应用研究[D].北京:北京科技大学,2022.
LI Zhanguo.Research on basic theory and application of full active lime intensified sintering technology[D].Beijing:University Of Science & Technology Beijing,2022.
[23] 袁晓丽,唐斐斐,李凡,等.生石灰活性度对烧结性能的影响[J].重庆科技学院学报(自然科学版),2012,14(4):107-109,132.
YUAN Xiaoli,TANG Feifei,LI Fan,et al.Influence to activity burnt lime on sintering property[J].Journal of Chongqing University of Science and Technology(Natural Sciences Edition),2012,14(4):107-109,132.
[24] 陈海.中小颗粒石灰石煅烧特性研究[D].武汉:华中科技大学,2013.
CHEN Hai.Research on the calcination characteristic of medium-sized limestone[D].Wuhan:Huazhong University of Science and Technology,2013.
