共查询到19条相似文献,搜索用时 62 毫秒
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绿色环保修井作业配套装置的研究与应用 总被引:2,自引:2,他引:0
油水井小修作业施工时,在起下油杆、油管和清蜡作业中,油杆、油管会将井内油水带出地面,对作业施工现场和周围环境造成污染。为解决这一问题,研究开发了一套绿色环保修井作业配套装置。从油井修井作业过程中的起下油杆、起下油管、清蜡作业三道作业工序,控制井内油水的排放,减少对周围环境的污染,消除安全隐患,实现绿色环保作业,节约了作业成本,提高了经济效益。 相似文献
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为解决油田注水井修井作业起下管柱施工时由于井底高压造成的油管溢流喷溅问题,研制了专门用于封堵井下管柱的电控式封堵工具,在作业施工前通过测试电缆下到指定封堵位置,地面计算机发布命令进行封堵、锚定并实现丢手,达到封堵油管溢流的目的。通过反复的现场验证,证明该工具封堵可靠、效率高,方便推广应用,可为实现环保作业提供技术支撑。 相似文献
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大庆油田从污染源头抓起,针对整个井下作业流程中存在的环保问题,建立了污油污水不落地的清洁环保作业模式,通过原井管柱污染防治、起下过程废液收集、管柱内防喷、高压油水井带压作业等新型技术的研发和应用,有效地抑制了井下作业过程中环境污染问题的发生。文章对新型清洁环保作业模式进行了阐述,介绍了所研发新型环保技术的工艺特点及应用效果;并基于油田经济与生态环境的平衡和谐发展,对未来环保作业技术研究方向提出了意见和建议。 相似文献
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井下作业废水处理的试验研究 总被引:8,自引:5,他引:8
油田开发过程中,井下作业工艺尤为复杂,施工类型繁多,容易发生各种污染。针对压裂施工排出井管返出液的特点,重点提出利用絮凝-隔油法,之后再用次氯酸钠结合紫外光对废水进行深度处理,可氧化分解难处理的部分高分子有机化合物的污染。结果表明:在适宜的处理条件下,该法可有效去除水中CODCr 和Oil ,去除率分别为98.9%、98.3%。 相似文献
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为了避免在修井过程中产生的落地油、油砂、油水混合液和洗井液等对环境造成污染,辽河石油勘探局经过多年的研究与实践已研究出一整套完备的绿色环保修井技术,包括抽油杆刮油、油管泄油、密闭连续冲砂、软捞砂、快速防喷、汽化水回收等修井技术,在施工全过程中采取了预防污染的措施,将生产技术、生产过程、经营管理及产品质量与物流、能量、信息管理等有机结合起来,并优化运行方式,从而实现了最小的环境影响、最少的资源消耗、最佳的管理模式以及最优化的经济水平。并取得多项专利成果。 相似文献
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通过调查问卷的形式探索了仁怀市赤水河两岸的村民在生态保护中的态度与行为。结果表明:沿赤水河两岸居住的部分村民的环保意识相对较低,居民的环保意识与所受教育程度有关,且居民了解环保知识的渠道单一,需要加强多渠道宣传;居民的日常生活和农耕对赤水河的污染较小,周围酒厂及小工厂的污染"贡献"较大。当地环保部门应该加强宣传,提高两岸居民的环保知识水平,减少生活污染,严格控制企业污染排放,减少工业污染,从而维护赤水河流域生态安全。 相似文献
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Michelle L. Soupir Saied Mostaghimi C.E. Mitchem Jr. 《Journal of the American Water Resources Association》2009,45(1):110-122
Abstract: Nonpoint source pollution (NPS) studies, such as total maximum daily loads development, often require quantification of flow in small first‐order and second‐order streams. Frequently, stream‐gaging techniques are implemented in flows that are below the manufacturer’s recommended minimum velocity. A comparative analysis of the accuracy of current technologies used in NPS pollution stream‐gaging applications and their applicability in low‐flow conditions was conducted. Nine stream‐gaging methods were evaluated for their field and laboratory performance and control structures were used as the statistical control. Analysis of the field investigation data indicated that Marsh McBirney current meter and the One‐orange method were the most accurate in the field while the results of the laboratory experiments found that the Starflow acoustic Doppler and Valeport Braystoke current meter performed best among the 10 methods. Overall, the Marsh McBirney and Valeport Braystoke current meters exhibited the best performance for both field and laboratory situations. 相似文献
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滇黔桂石油局把环境保护放在企业可持续发展的高度抓清洁生产,推行企业法人环保责任制和目标管理,开展清洁生产试点,生产环境友好产品,树立企业环保形象。文章就滇黔桂油田主要污染源现状、治理及管理措施进行了讨论并提出切合实际的建议。 相似文献
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《环境保护税法(草案)》已经初次审议并公布草案全文征求意见,本文对草案中有关问题进行了探讨,期望这些建议能为修改法律草案条文提供参考。关于水污染物环境保护税的纳税人,建议按照直接向环境排放污水的企业事业单位和其他生产经营者、城镇污水集中处理设施、园区污水集中处理设施等三类区分;关于大气污染物、水污染物的征税范围与方法,建议近期将大气污染物中的重金属项目也纳入应税污染物,与水污染物征税范围保持一致,远期考虑与排放标准脱钩,重新审视、确定应税污染物的范围、筛选原则与当量值;关于综合利用固体废物征收环境保护税问题,建议对综合利用过程在满足环保标准要求条件下,免征环境保护税,而综合利用形成的原材料或产品则不适用本法。另外本文还提出了未来环境保护税应覆盖产品全生命周期的生产、使用、废弃等环节的观点。 相似文献
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新疆城镇饮用水水源地环境调查与保护对策 总被引:1,自引:0,他引:1
在对全疆15个地州、87个县市、111个饮用水水源地的环境现状调查基础上,通过对水源地环境质量现状和污染现状分析,有针对性的提出水源地保护对策,以便加强饮用水水源地的污染防治建设,保障饮用水水源地水质安全。 相似文献
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K.J. Riebschleager R. Karthikeyan R. Srinivasan K. McKee 《Journal of the American Water Resources Association》2012,48(4):745-761
Riebschleager, K.J., R. Karthikeyan, R. Srinivasan, and K. McKee, 2012. Estimating Potential E. coli Sources in a Watershed Using Spatially Explicit Modeling Techniques. Journal of the American Water Resources Association (JAWRA) 48(4): 745‐761. DOI: 10.1111/j.1752‐1688.2012.00649.x Abstract: The Spatially Explicit Load Enrichment Calculation Tool (SELECT) was automated to characterize waste and the associated pathogens from various sources within a mixed land use watershed. Potential Escherichia coli loads in Lake Granbury watershed were estimated using spatially variable governing factors, such as land use, soil condition, and distance to streams. A new approach for characterizing E. coli loads resulting from malfunctioning on‐site wastewater treatment systems (OWTSs) was incorporated into SELECT along with the Pollutant Connectivity Factor (PCF) module. The PCF component was applied to identify areas contributing E. coli loads during runoff events by incorporating the influence of potential E. coli loading, runoff potential, and travel distance to waterbodies. Simulation results indicated livestock and wildlife are potential E. coli contributing sources in the watershed. The areas in which these sources are potentially contributing are not currently monitored for E. coli. The bacterial water quality violations seen around Lake Granbury are most likely the result of malfunctioning OWTSs and pet wastes. SELECT results demonstrate the need to evaluate each contributing source separately to effectively allocate site specific best management practices (BMPs) utilizing stakeholder inputs. It also serves as a powerful screening tool for determining areas where detailed investigation is merited. 相似文献