钻井液用防塌润滑剂FRH-B的研究与应用

以改性沥青、降滤失剂、页岩抑制剂、表面活性剂、润滑剂为基础材料，制备了防塌润滑剂ＦＲＨＢ。考察了ＦＲＨＢ的抑制性、润滑性及对低、高密度钻井液性能的影响，简要介绍了ＦＲＨＢ的现场应用情况。本文结果表明，该防塌润滑剂有显著的抑制作用，可显著降低钻井液的滤失量和泥饼摩擦系数，在钻井液中具有良好的配伍性。     

模拟二元复合驱采出液破乳研究

用模拟碱／聚合物二元复合驱采出液，以脱出水色为主要评价项目，对新开发的若干系列的破乳剂＋净水剂复配物的破乳性能进行了室内评价。聚丙烯酰胺含量最高达１１６０ｍｇ／ｌ、碳酸钠含量最高达８０００ｍｇ／ｌ的模拟采出液破乳实验结果表明，聚合物含量是影响破乳效果的主要因素。破乳性能最好的破乳剂是ＡＥＤ７８和ＡＥＤ２３（甲苯二异氰酸酯扩链的双嵌段聚醚），净水剂是ＱＢＳ０５（阳离子苄基淀粉）和ＱＳ０６（阳离子淀粉）。     

普光高酸性气田投产测试关键技术综述

在普光高酸性气田产能建设的过程中,气井的投产测试是一个非常关键的阶段。这个阶段的关键技术主要有高含硫气井入井液技术、完井管柱配套技术、长井段射孔工艺技术、长井段大规模酸压技术、合金油管作业技术、作业随钻录井技术、长时间试气测试技术。普光气田的投产实践证明只有这些关键技术的成功应用,才能确保高酸性气田投产测试的顺利实施,才能为高酸性气田的产能建设打下了坚实的技术基础。     

KINETIC THEORY OF FLOW IN STRONGLY INHOMOGENEOUS FLUIDS

Enskog's kinetic theory of dense hard sphere fluids, modified to allow long-ranged attractive interactions in a mean field sense, is solved for the case of slow flow in strongly inhomogeneous fluids, such as fluids near solid surfaces or liquid-vapor interfaces. In the equilibrium limit the theory yields the exact Yvon-Born-Green equation for the density distribution. In the slow flow limit the viscosity is a tensorial functional of the density distribution. Expressions for the velocity profile are derived for plane laminar and Couette flows. The density dependence of the transport coefficients is smoothed once through the angle averaging of the binary collisions of the Enskog theory. In the planar flows the velocity profile obeys a second order differential equation with variable coefficients and so the density dependence is further muted by two successive spatial integrations. The result leads one to expect the velocity profile to depend relatively weakly on density variations. This conclusion is in agreement with recently available computer simulations of flow in micropores. Another conclusion of the work is that one cannot introduce a flow or pore size independent effective viscosity to describe flow in micropores.     

埕岛油田海水钻井液对钻具的腐蚀及其防护

埕岛油田所用低碱性海水钻井液对钻具的腐蚀严重。本文报道了海水成分分析结果，讨论了钻具腐蚀的基本原理，在海水中测定了一些因素对腐蚀速率的影响，影响最大的是ＰＨ值和溶解氧。礤次是温度、多种化学处理剂有缓蚀作用。筛选出了３种缓蚀添加剂：除氧剂亚硫酸钠，水基润滑剂ＳＲＨ，复合缓蚀剂ＺＨ－Ⅱ。０．０５％亚硫酸钠＋０．３％ＺＨ－Ⅱ或１％ＳＲＨ可使ＰＨ为８．３－８．５的聚合物海水泥浆的腐蚀速率降低８０％以上。     

Validating the Darken Relation for Diffusivities in Fluid Mixtures of Varying Densities by Use of MD Simulations

Molecular Dynamics (MD) simulations have been carried out to determine the self‐diffusivities, D_i,self, of the pure hydrocarbons methane (C1), ethane (C2), propane (C3), and n‐hexane (nC6) at various fluid densities. The MD simulations are in reasonable agreement with published experimental data. The influence of fluid density on both D_i,self and the Maxwell‐Stefan (M‐S) diffusivities, ?_ij, in binary C1‐C2, C1‐C3, C2‐C3, and C1‐nC6 mixtures was also investigated. The MD simulations show that the M‐S diffusivities in binary fluid mixtures can be estimated with good accuracy using the Darken relation.     

用于酸化的酸／油微乳液的实验室研究

用阴-非离子表面活性剂制备了酸/油型微乳液,初步优选了配方。在常压下对比了盐酸、Hoefner 的酸/油微乳液、Phillips 的稠化酸及作者所配制的酸/油微乳液与大理石之间的反应速率。结果表明,本文所提出的微乳液体系的酸化速率最小。考察了钙离子对反应速率的影响。用支撑液膜研究了氢离子在微乳液中的传递机理。所配制的微乳液体系可用于砂岩油层的基质酸化或压裂酸化。     

化学剂去皮法分离香豆胶

本文报道化学剂去皮法分离香豆胶的室内实验研究结果。将香豆用化学剂浸泡、清水冲洗除去种皮，再用机械方法将去皮香豆分离为内胚乳和胚。分出的内胚乳片即香豆胶片，种皮和胚为下脚料。香豆胶的收率可高达３３％－３８％，且较纯净，不含杂质。用双化学剂脱皮后分离出的香豆胶片，其增粘能力高于现行行业标准对一级香豆胶粉规定的指标。从工艺技术、经济等方面考察，该法可以实现工业化。以去皮所用某些化学剂处理目前市售香豆胶片，可使其增粘能力接近和超过瓜尔胶片。     

有机锆交联剂OZ—1应用研究

合成了具有延迟交联特性的有机锆交联剂ＯＺ１；介绍了ＯＺ１交联的已在胜利油田应用的３种压裂液的性能；探讨了ＯＺ１在水基聚合物冻胶堵剂和弱凝胶或胶态分散凝胶中的应用。     

高性能复配型土酸酸化缓蚀剂V—1

为了防止地层酸化时土酸对钢铁设备及井下油、套管的腐蚀，研制了Ｖ１型土酸酸化缓蚀剂。该剂是以一种有机胺盐、炔醇和商品缓蚀剂Ｄｏｄｉｇｅｎ９５为主要成分的复配型缓蚀剂，适用于各种土酸酸化体系。本文介绍了该剂的室内性能评价和现场试验结果。