Bioflocculant Produced by Klebsiella sp. MYC and Its Appli-cation in the Treatment of Oil-field Produced Water

Seventy-nine strains of bioflocculant-producing bacteria were isolated from 3 activated sludge samples. Among them, strain MYC was found to have the highest and stable flocculating rate for both kaolin clay suspension and oil-field produced water. The bacterial strain was identified as Klebsiella sp. MYC according to its morphological and biochemical characteristics and 16SrDNA sequence. The optimal medium for bioflocculant production by this bacterial strain was composed of cane sugar 20 g L^-1, KH2PO4 2 g L^-1, K2HPO4 5 g L^- 1, （ NH4）2SO4 0.2 g L^-1, urea 0.5 g L^- 1 and yeast extract 0.5 g L^- 1, the initial pH being 5.5. When the suspension of kaolin clay was treated with0.5% of Klebsiella sp. MYC culture broth, the flocculating rate reached more than 90.0% in the presence of 500mg L^-1 CaCI2, while the flocculating rate for oil-field produced water was near 80.0% in a pH range of 7.0 - 9.0 with the separation of oil and suspended particles from the oil-field produced water under similar conditions. The environment-friendly nature of the bioflocculant and high flocculating rate of the strain make the bioflocculant produced by Klebsiella sp. MYC an attractive bioflocculant in oil-field produced water treatment.

Rheological behavior of Shengli coal-solvent slurry at low-temperatures and atmospheric pressure

We report the results from systematic studies of Shengli lignite coal-solvent slurries. Solvent type, temperature, coal to solvent ratio, particle granularity, shear rate and shear time were investigated. The viscosity of the solvents is time independent. However, the slurries are thixotropic. A change from pseudo-plastic to Newtonian behavior occurs as the temperature, or as the solvent to coal ratio, increases. The solvent used in the slurry affects the point at which the rheology changes from pseudo-plastic to Newtonian. The REC slurry changes at 1:1.2 coal to solvent ratio and at 40 °C. The HAR slurry changes at a 1:1.5 ratio and at 60 °C. The rheology of the slurries is pseudo-plastic at low shear rates but Newtonian at high shear rates.

A case study:cross-well acoustic tomography in Fuyu oil-field

The cross-well acoustic tomography as an advanced technique in 1980's is widely researchedand improved now. It is found that the velocity of oil-layer is lower than that Of country rock byabout ten percent according to some reports abroad. It had been tested to drive oil by steam inoil--field. In China the first test of cross-well acoustic tomography was performed in Fuyu oilfield, Jinn Province, in Dec. 1992. Through data processing in detail, an acoustic tomogram wasobtained, in which the distribution and inclination of oil layers between two boreholes are well revealed and coincident with the logging results. SOme technical problems existed in this experiment are POinted.

胜利探区油气共/伴生资源综合利用前景

胜利探区发现了多种油气共/伴生资源,部分为关系国防、农业、高科技等行业安全的战略资源,极具开发利用价值。针对目前研究较深入、已经工业化生产的氦气、卤水(钾盐)、铀矿等,分析了其在中国的勘探开发现状、在胜利探区的赋存特征、成矿条件及综合利用前景。研究结果表明:①氦气高异常主要分布在济阳坳陷、柴达木盆地的10余个地区,元古界—新生界的多个层位,具有与常规天然气、非烃气、页岩气等伴生的多种赋存类型。②济阳坳陷、柴达木盆地在古近纪—第四纪均具有发育卤水(钾盐)的古气候、古环境,其中东营凹陷油田水含有丰富的溴、锂、钾等,柴达木盆地的油田水中钾、锂较高,部分地区含量值达工业品位。③铀矿的主要类型为砂岩型,车排子凸起的多口井在白垩系、新近系呈现高异常自然伽马值,为最有利的伴生铀矿远景区;吐哈盆地、柴达木盆地及济阳坳陷的部分胜利探区也具有发育铀矿的铀源、构造、岩相、水文地质等成矿条件,部分井的自然伽马测井数据表现出高异常值。整体上胜利探区油气共/伴生资源具有类型多、分布层位多、异常区域广的特点。若充分利用胜利油田在勘探基础资料、地质基本认识、工程设施等方面的天然优势,尽快系统开展油气共/伴生资源成藏(矿)规律研究、资源潜力评价、提取工艺技术攻关等工作,有望将其发展成为新的业务增长极。

Magmatic Network Structure of Volcanic Rocks in the Shengli Oilfield, Eastern China

Abstract: Types of polymerized molecular network structure and degree of bond breakdown for glass phases of magmatic inclusions and glassy matrix in volcanic rocks from the Shengli oilfield have been defined by the laser Raman spectroscopic investigation. There are significant differences in types of polymerized molecular network structure and degree of bond breakdown of the magmatic glass phases between the non-CO2 and CO2 gas pools: magmatic glass phases of fluid inclusions and matrix in volcanic rocks from the CO2 gas pool contain more sheet network molecules and have a greater degree of bond beakdown than those from the non-CO2 gas pool; and when gas bubbles occur in evolving magma, magma saturated with volatile components has more sheet network molecules. The results suggest the magmadegassing mechanism of the formation of CO2 gas pools in the Shengli oilfield.

Dynamic Variation of Land-use Types of the Constructed Wetland before and after Oil-field Water Irrigation Based on 3S Technology

[Objective] The study aimed at analyzing the dynamic variation of land-use types of the constructed wetland before and after oil-field water irrigation based on 3S technology. [Method] At semi-arid and arid areas in the west of Jilin Province, water resource balance between the amount of oil-field water supply and ecological water requirement in the constructed wetland irrigated by oil-field water during 2001-2010 was investigated firstly. Afterwards, based on 3S technology, the partition and dynamic variation of land-use types of the constructed wetland before and after oil-field water irrigation in 2001, 2006, 2008 and 2010 were analyzed. [Result] The annual ecological water requirement of the constructed wetland from 2003 to 2010 varied from 1.62×106 to 2.24×106 m3, and the annual amount of oil-field water supply in the region changed from 2.12×106 to 2.84×106 m3, which showed that the supply amount of oil-field water could meet the basic ecological water requirement of the constructed wetland. Meanwhile, compared with 2001, the areas of water region and paddy field in 2010 increased by 2.3 and 10.0 times, and the areas of forest and marsh rose by 40.15% and 29.5.0% respectively. [Conclusion] Water shortage and ecological environment problem of arid and semi-arid areas had been improved by oil-field water irrigation.

Shengli Body-Building Appliances

The Shengli body-building appliances developed by the Zhejiang Shengli Group Co. in recent years cover ten categories and more than forty items. Shengli has become a "well-known trade mark of Zhejiang Province". The main categories of the Shengli body-building appliances cover a comprehensive training machine, weight-lifting bed, jogging instrument, jogging machine, rowing machine, cycling machine, walking machine, massager and tramping machine. The product series are developing towards intelligent, computerized and multi-functionaltypes. There are both multi-functional

Welding technology in oil-field construction in China

This paper introduces the application and development of welding technology in the oil-field construction in China. It focuses on introducing,by statistics,the growth of working capacity in the welding engineering of oil well heads,long-distance oil transmission lines,large-scale storage tanks, various kinds of oil station and stores, and the applications of welding technology in the typical construction of oil field. Finally, it presents suggestions on the future development of welding technology in oil-field construction for discussion.

胜利油田GF84区块CCUS气窜封堵技术及其应用

胜利油田GF84区块为低渗透油藏,采出程度较低,CO_(2)驱是提高该区块采收率的有效措施之一。在前期开发中注采井之间已形成明显的气窜通道,现阶段亟需进行气窜封堵,提高CO_(2)驱波及系数,实现均衡驱替。通过分析GF84区块气窜特征与开发矛盾,将气窜类型划分为“裂缝型气窜”和“基质型气窜”,并制定了“裂缝封堵”和“基质调剖”的治理策略。在明确气窜特征的基础上,通过室内实验研发了硅盐树脂堵剂、CO_(2)气溶性发泡剂和高温冻胶堵剂,并形成了“硅盐树脂裂缝封堵+CO_(2)气溶性发泡剂、高温冻胶基质调剖”化学封堵分级调控技术。结果表明,该技术在GF84区块成功应用4口井,其中硅盐树脂裂缝封堵2口井,CO_(2)气溶性发泡剂基质调剖2口井,措施有效率100%,有效期在0.5 a以上。研究成果可为低渗透油田CO_(2)驱开发提供技术支撑。

Shengli Brand Sanitary Ware

The Shengli brand sanitary wareproduced by the TangshanMunicipality Building CeramicsFactory under the Tangshan Shengli Ceramics(Group) Corporation are fine quality productsnominated by the Ministry and have beenawarded the honourary certificate for exportproducts by the Ministry of Foreign Tradeand Cooperation. The factory is of advanced technicalprocess in production, and boasts an importedvertical casting production line for

Geological Scientific Research Institute of Shengli Oilfield

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Geological Scientific Research Institute of Shengli Oilfield

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胜利油田油藏描述技术回顾与发展方向

胜利油田为典型的陆相复式油气区,油藏类型多、含油层系多、断裂系统复杂,20世纪90年代初进入含水率为90%以上的特高含水开发阶段,如何针对不同类型油藏和开发阶段,精细刻画地下储层变化、精准认识剩余油,是实现高含水老油田提高采收率的基础。为此,从1996年始开展了针对老油田剩余油挖潜的精细油藏描述,通过精细储层构型表征、低序级断层精细描述、砂砾岩期次划分与连通性评价、薄互层滩坝砂储层预测、三维精细地质建模及剩余油精细描述等关键技术攻关,以及多轮次油藏描述技术迭代,形成了一套胜利特色的精细油藏描述技术,编制了精细油藏描述技术规范。截至2023年累计描述开发单元600余个,覆盖石油地质储量为43.6×108 t,建模数模技术在老区调整和新区方案编制中得到广泛应用,有效支撑了油田的规模建产与效益稳产。系统分析胜利油田油藏描述技术发展历程,总结不同类型油藏形成的特色技术,分析特高含水后期老油田精细油藏描述面临的5项挑战,阐述下一步油藏描述技术的5个发展方向,对推动陆相油田精细油藏描述技术具有指导和借鉴意义。

胜利油田“十四五”勘探形势与发展战略

经历60余年的勘探开发,作为胜利探区增储主体的济阳坳陷富油凹陷中浅层及准噶尔盆地西缘超剥带的常规油气已处于成熟勘探阶段,勘探目标日趋复杂隐蔽,规模增储难度持续增加,亟需加强勘探形势研判与资源潜力评价,制定针对性勘探发展战略,保障胜利油田勘探可持续发展。通过开展胜利探区东西部勘探状况与勘探形势梳理,资源潜力及增储领域分析,明确了其剩余资源潜力与有利勘探方向,认为胜利探区仍具有可持续发展的资源基础,其中深层-超深层具有规模增储的资源潜力,外围低勘探程度区具有较大的勘探潜力,非常规油气是现实的资源接替领域;提出了实施“类型上由常规为主向常非并重转变、层系上由中浅层向深层-超深层转变、区域上由老油区向全探区综合勘探转变”的“三大勘探战略转变”,制定了“立足全区、决胜深层、常非并重、统筹推进”的勘探发展思路;提出了“坚持低勘探程度区攻坚实现新突破、坚持深层-超深层探索形成规模增储新阵地、坚持常非并重实现稳定增储、坚持高效管理推进勘探高质量发展”的发展路径,为胜利油田勘探高质量发展指明了方向,也为渤海湾盆地、准噶尔盆地类似探区的勘探提供了思路和方向借鉴。

天山胜利隧道内置高位水池的消防供水系统设计研究

为解决10 km甚至20 km以上的高寒高海拔超长公路隧道消防供水系统设计中洞外设置供水系统被冻结、洞内管网严重超压等难题,通过对乌尉高速天山胜利隧道消防设计的难点,以及常规的隧道外常高压供水系统及稳高压供水系统在该隧道中难以实施等问题展开深入研究,提出天山胜利隧道内设置高位消防水池及将隧道内消防管网进行分区供水的设计方案并详细论述。对于10 km甚至20 km以上的高寒高海拔超长公路隧道消防供水系统的设计:1)隧道消防给水宜采用高位消防水池供水的常高压供水系统;2)常规的隧道外常高压供水系统及稳高压供水系统在高寒高海拔超长公路隧道中无法实施,可考虑隧道内置高位消防水池的设计;3)隧道内置高位消防水池的数量、设置间距、设置高度等应根据隧道的长度、纵坡等综合考虑并进行水力计算后确定;4)隧道内置高位消防水池的常高压供水系统能解决这类隧道消防供水系统设计中管网严重超压的难题,具有供水安全可靠、施工难度较小、经济、环保等优点。

天山胜利隧道敞开式TBM钢管片支护作用效果研究

针对TBM穿越断层破碎带地层洞壁围岩松动掉块严重的问题,依托乌尉天山胜利隧道,采用数值模拟的方法,通过对比研究传统支护方式与新型钢管片支护方式下围岩变形和围岩塑性区情况,研究钢管片支护的作用效果;同时,为说明不同支护的适用条件,采用现场调研方法开展不同支护方式下施工效率和经济性对比分析。结果表明:1)断层破碎带地层中,当围岩出露护盾后,变形量与塑性区范围增大,围岩破坏程度加剧,以锚杆和钢拱架为主的传统支护方式无法较好地控制围岩变形和塑性区发展。2)断层破碎带地层中,钢管片支护较传统支护的围岩累计沉降值降低53%,围岩变形收敛快,能更好地控制围岩变形和发展。3)钢管片支护较传统支护的围岩塑性区范围小,其中边墙的最终塑性区缩小44%,且钢管片支护可实现早封闭、及时支护,塑性区均匀,更有利于围岩的稳定。4)一般地层中,传统支护方式的经济性和效率更佳;断层破碎带地层中,钢管片支护方式可提供安全作业空间,减小钢拱架+喷锚支护作业量,较传统支护经济性和施工效率更佳。

胜利山柳沟北部油区长8致密砂岩开发对策研究

胜利山柳沟北部油区存在油层能量利用不足、井场状态不理想、注采井网不完善等问题,在很大程度上影响了油田的开发效果。基于此,针对低渗透油藏的特征,通过考虑地层压力的合理维持、采用菱形反九点井网形式、综合经济评价确定井网密度,以及物质平衡方法计算合理注采比等措施,实现了更加经济高效的油田开发。最终提出的开发调整方案有助于提高地层压力、优化井网结构,以及保障油田的可持续开发。这些调整为新建产能提供了可行的方案。