Preparation and performance evaluation of hydrophobic quartz sand treated by OTS-SAM technology
SU Yu-bin1,2, ZHAO Qian-yun1,2, YAO Jian1,2, CAI Xu-sen3
1. Changqing Oil and Gas Technology Institute, PetroChina Changqing Oilfield Company, Xi'an 710021, China; 2. State Engineering Laboratory of Low-permeability Oil and Gas Field Exploration and Development, Xi'an 710021, China; 3. The 9th Oil Production Plant, PetroChina Changqing Oilfield Company, Yinchuan 750005, China
Abstract: Hydrophobic quartz sand DH-1 is prepared through octadecyl trichlorosilane (OTS) forming self-assembled monolayers (SAM) on the quartz sand surface.As a proppant,DH-1 has excellent hydrophobic ability,superior to normal water-suppressive quartz sand (PX-1) and blank quartz sand.The permeability tests are performed on different proppants in deionized water,kerosene,and crude oil and backwater media from a certain oilfield.Test results show that the permeability of DH-1 to the backwater is significantly lower than that of PX-1 and blank quartz sand.The permeability of DH-1 to the crude oil is a little lower than that of blank quartz sand.NRFF value of DH-1 are 2.33 and 2.16 at 20℃/2 MPa and 60℃/8 MPa,separately,showing an excellent water inhibition ability even under different reservoir environment.Under the same closing pressure conditions,the short-term permeability of DH-1 column is the highest in kerosene media compared with its counterparts.The short-term permeability of DH-1 column in kerosene medium is higher than that in aqueous mediium.The damage percentage of DH-1 in 69 MPa is only 24.2%,and its single particle compressive strength is 352 MPa.
苏煜彬, 赵倩云, 姚坚, 蔡绪森. 基于OTS-SAM技术的疏水石英砂支撑剂的制备及性能评价[J]. 现代化工, 2020, 40(6): 165-168,174.
SU Yu-bin, ZHAO Qian-yun, YAO Jian, CAI Xu-sen. Preparation and performance evaluation of hydrophobic quartz sand treated by OTS-SAM technology. Modern Chemical Industry, 2020, 40(6): 165-168,174.
[1] 高新平,彭钧亮,彭欢,等.页岩气压裂用石英砂替代陶粒导流实验研究[J].钻采工艺,2018,41(5):35-37. [2] 王晓惠,张涛,刘炜,等.新疆油田九区石炭系油藏水平井分段压裂关键技术研究及应用[J].钻采工艺,2019,42(2):76-78. [3] 周小金,张帅,段希宇.长宁地区页岩气井出砂原因分析初探[J].钻采工艺,2018,41(4):63-65. [4] Kluth G J,Sung M M,Maboudian R.Thermal behavior of alkylsiloxane self-assembled monolayers on the oxidized Si(lOO) surface[J].Langmuir,1997,13:3775-3780. [5] Kulkami S A,Miiji S A,Mandale A B,et al.Thermal stability of self-assembled octadecyltrichlorosilane monolayers on planar and curved silica surfaces[J].Thin Solid Films,2006,496:420-425. [6] Ashurst W R,Yau C,Carraro C,et al.Alkene based monolayer films as anti-stiction coatings for polysilicon MEMS[J].Sensors and Actuators A,2001,9:239-248. [7] Evans S D,Ulman A.Surface potential studies of alky-thiol monolayers absorbed on gold[J].A Chem Phys Lett,1990,170:462-466. [8] Patel K R,Tang H,Grever W E,et al.Evaluation of polymer and self-assembled monolayer-coated silicone surfaces to reduce neural cell growth[J].Biomaterials,2006,27:1519-152. [9] 齐宁,何利敏,李柏杨,等.十八烷基三氯硅烷自组装抑水石英砂的制备与性能评价[J].油田化学,2016,33(3):445-440. [10] 曲占庆,何利敏,王冰,等.支撑剂表面疏水处理方法的研究[J].石油化工高等学校学报,2014,27(1):90-96. [11] 何利敏.抑水型石英砂制备方法及抑水性能研究[D].东营:中国石油大学(华东),2014. [12] 贾东辉.脂肽类表面活性剂在固/液界面的吸附研究[D].东营:中国石油大学(华东),2011. [13] Davidovits J V,Pho V,Silberzan R,et al.Temperature influence on the formation of silanized monolayers on silica an atomic force microscopy study[J].Surface Science,1996,352-354:369-373. [14] Goldmann M,Davidovits J V,Silberzan P.Kinetics of self-assembled silane monolayers at various temperatures evidence of 2D Foamfoam[J].Thin Solid Films,1998,327-329(none):166-171. [15] Carraro C,Yauw 0 W,Sung M M,et al.Observation of three growth mechanisms in self-assembled monolayers[J].J Phys Chem B,1998,102:4441-4445. [16] Sieval A B,Opitz R,Maas H P A,et al.Monolayers of 1-alkynes on the H-terminated Si(lOO) surface[J].Langmuir,2000,16:10359-10368. [17] Tillman N,Ulman A,Schildkraut J S,et al.Incorporation of phenoxy groups in self-assembled monolayers of trichlorosilane derivatives,effects on film thickness,wettability,and molecular orientation[J].J Am Chem Soc,1988,110:6136-6144. [18] 中国石油天然气总公司.SY/T 6302-1997压裂支撑剂充填层短期导流能力评价推荐方法[S].北京:石油工业出版社,1997:1-18. [19] 金智荣,郭建春,赵金洲,等.复杂条件下支撑裂缝导流能力试验研究与分析[J].石油天然气学报,2007,29(3):284-287. [20] 袁文义,谢建利,尹淑丽,等.段塞导致的混合支撑剂导流能力评价[J].断块油气田,2009,16(6):121-122. [21] 国家发展和改革委员会.SY/T 5108-2006压裂支撑剂性能指标及测试推荐方法[S].北京:石油工业出版社,2007:1-23. [22] 周文高,胡永全,赵金洲,等.控制压裂缝高技术研究及影响因素分析[J].断块油气田,2006,(4):35-38. [23] 郑铎,宋金波,许霞,等.FS-RPM相渗调节剂在控水防砂中的研究与应用[J].石油天然气学报,2012,34(5):139-142. [24] 张毅,周志齐.压裂用陶粒支撑剂短期导流能力试验研究[J].西安石油学院学报:自然科学版,2000,(5):39-41. [25] 金智荣,刘太平,顾克忠,等.透油阻水支撑剂在近水层有层压裂中的应用[J].断块油气田,2006,(19):93-95.
