随着油气藏的不断开发,油气开采已处于特高含水开发的后期阶段,受油价下调的影响,必须控制生产成本,才能保证油田的效益.动态管理需要克服成本降低和工作量减少带来的负面影响,保证动态管理的有效性.目前来看,动态管理还有待改进,尚未到达特高含水期老油田的管理规范,在油价普遍下调的情况下,动态管理工作必须不断改进创新,才能应付新的挑战.

石化、化工行业的钢结构烟囱更换项目施工作业空间小、施工安全风险高、危险性大,介绍了使用吊车配合,用倒拆、倒装法更换烟囱筒节的施工技术,保证了烟囱框架的整体安全稳定性、降低施工安全风险,并缩短了工期,满足生产装置检修工期要求.

In the process of oil transport,the corrosion problems for metal pipe not only bring huge economic loss to petrochemical enterprises,but also threaten seriously the safety of production.Therefore,the research on corrosion inhibitor for metal has become particularly urgent.In order to solve the corrosion problems of metal pipe in Jidong Oilfield,the corrosion inhibitors with excellent performance are prepared through optimizing synthesis process.N-methyl diethanolamine,as the main corrosion inhibitor,is matched with different auxiliary agents to make binary compound corrosion inhibitor and ternary compound corrosion inhibitor.The influence factors on corrosion inhibition performance are analyzed.The results show that when N-methyldiethanolamine is used as the main corrosion inhibitor and the concentration of sodium molybdate and thiourea is 65 mg·L-1 and 35 mg·L-1 respectively,the synergistic effect of these three corrosion inhibitors is the best,which gives the average corrosion rate at 0.028 7 mm·a-1,the corrosion inhibition rate reaches 94.22％,the extreme value.

喇嘛甸油田储层埋藏浅、岩性疏松,胶结强度低,在钻井过程中易出现井径扩大问题,给测井曲线解释及油层参数解释带来很大困难,同时影响固井质量.针对此问题,结合地质储层保护和钻井工程等方面的特点及要求,对井径扩大的原因进行分析研究.综合考虑储层地质特征、钻井参数对井径问题的影响,从水力参数和钻井措施等方面,提出了防止井径扩大的井斜预防钻具优选、钻井液参数优选等技术措施.措施实施后井径扩大率由14.8％下降至10.2％.

水平井实施逐步成为油气田开发的趋势,识别和准确评价等技术及引导钻头准确入窗和地质导向技术,达到预期钻探目的,更好满足油田勘探开发需要。

Pressure system is necessary work to evaluate the division of gas reserves and optimize well spacing and develop plan.In the gas field,it is a crucial important to research pressure system.This article is based mainly on geological studies,even well profile,the static pressure gradient and fluid properties analysis,and wells within a radius and so on, The combination of a variety of methods.In accordance with the＂localnearby,and gradually extrapolation＂of ideas,following the＂should be broad rather than fine＂,it is classification., we divided and evaluated pressure system in yu 30 well of Zi Zhou Gas Field.For the field scientific,reasonable,it provide the basis for scientific,efficient,reasonable gas development.

In combination plenty of gas well production dynamic material,calulated the dynamic reserve on the application of dynamic monitoring data,and adopted reserves calculation method for forecasting gas production decline of monthly output and tired produce gas,finally integrated pressure drop method,production decline method and so on many kinds of calculation results,implemented ChangBei block all kinds of gas well move for gas reserves,the next step is reasonable development provides scientific basis.

Based on the Yulin gas field north-south zone development model adopted by different, From the gas reservoir engineering perspective,classification analysis gas(reservoir) to develop dynamic characteristics,gradual implementation of gas(reservoir) geological reserves, Evaluation of reserves and the extent,calculating the Southern District、North recovery,etc. evaluation of effects of gas reservoir development.To adjust the gas field development,improve development effectiveness,improve economic development lay the foundation,also for the gas field,wells(especially horizontal wells) accumulation of experience of development and management.

Purpose is with Yu gas field wood south zone next thou gas hide for point,in combining existing capacity dynamic data and people of the past and studying fruit foundation, the approval hides the synthesis analysis of the capacity dynamic data of basic geology character and gas well tapping to the next thou gas and adopts the method of action wedge bonding and evaluates next thou a productivity of annoying the well and propose next thou a tapping of keeping the layer instruction guideline,guide and raise Yu gas field wood next thou keep the tapping efficiency and efficiency of layer.

Zizhou gas field is a"low porosity,low permeability,low-abundance,low-yield"of the filed.In this filed,gas reservoir characteristics is very complex:large lateral variation,low production capacity and low reservoir parameter.The field is currently in the middle stage. The object of this study was to keep the period of stabilized production in Zizhou gas field based on the current technology conditions.Use of multi-disciplinary including geology,geophysics and well testing,we have selected some favorable abundance zones.Our work is of great significance to the development and deployment of Zizhou gas filed.

Zi zhou gas field put into production in august 2007,main gas reservoir is shan 2, physical property of gas reservoiris poor,strong anisotropy,low gas production,local Area have water,Development and management of difficult and so on.Through analysis of development effect and evaluation,it's based on better understanding of reservoir geology, following gas field production process closely,in order to classification of gas well,we use dynamic characteristic and static characteristics.and analyze types of gas well,thus to verify the entire field(gas reservoir) capacity,earring out capacity of individual-well.Optimize range of profitability and so on.It provides the basis for rolling development and expanding development scale.At the same time,from the field of scientific management and complete engineering studies carried out,we proposed for different types of gas corresponding to the management of the implementation.To achieve stable and reasonable gas field,lay the foundation for efficient development.

By 5 years' rolling development,the T areas of yulin gas field has constructed 172 wells accumulatively,having formed the capacity of 20×10~8 m~3/a,which becomes another important production base in changing oilfield.With the end of the construction output of T areas,the gas field come into the stable production phase.As a result,through fitting the amended geological model,we have predicted the development of technical indicators and optimized of the best development method,providing the basis for the rational development of well area.

The technological restructuring,especially in the elimination of outdated technology and engineering,go hand in hand with the corresponding adjustments of their organizational structures.Whether the adjustments of organization structure can work successfully or not will determine the realization of technological restructuring in return.As a result,it is inevitable and essential for state-owned enterprises and all the enterprises facing the technological restructuring to think about how to deal with the conflicts and incompatible elements effectively,strengthening the good ones,weakening the resistances,resolving the conflicts to contribute to the organization restructure,so as to make the technological restructuring come true.The paper illustrates a classic case about restructuring in Northeast Industry Economic District,in which all kinds of conflicts and circumstances are analyzed in detail.

Basing on deepening the understanding of gas reservoir geology and the Combination of the dynamic characteristics of this areas,we have established the three -dimensional geological model of gas reservoirs and carried out the numerical simulation.Through fitting the amended geological model,we have Predicted the development of technical indicators and optimized of the best development method,providing the basis for the rational development of well area.

榆林气田南区属于低渗透气藏,且储层非均质性强,产能核实难度大。在理论研究和现场试验不断总结、完善的基础上,形成了适应榆林气田南区地质特征的气井产能核实及合理配产方法。开发初期,多采用改进的修正等时试井及"单点法"试井,同时采用多点试井资料不断修正"单点法"公式;进入开发阶段后,主要采用高压集气流程下的简化修正等时试井、"单点法"和产量不稳定分析法,结合动态分析法进行产能核实,确定气井合理产量。实践表明,产能核实结果符合气井实际生产能力,证明这些技术较适合于低渗透气藏。

Yulin Gasfield is a typical lithologic gas reservoir with low permeability. Based on the thought of efficient development, dynamic analyses of gas field development are proposed for the purpose of scientific development of the low-yield wells, mainly including well productivity verification and classification management. Gas reservoir engineering method is applied to simplify the dynamic monitoring workload, which is based on the theoretical calculation of formation pressure and bottom hole flowing pressure. This method has been proved to save a large amount of testing cost. The research of benefit classification and criterion and the trend analysis of benefit by multiple evaluation indexes could settle a strong base for the benefit evaluation of gas field development and carry out the efficient development of Yulin Gasfield.

榆林气田主要产层为山西组的山23小层,构造为东高西低的单斜构造.陕209井区普遍出现气水层和水层,试气过程中个别井气水同产,生产过程中气藏边部靠近水体的几口生产井不同程度地产地层水,个别井出水量大,严重影响了气井产能,对整个气田的高效开发不利.研究着重于在气藏水体分布规律和气水同产井开发动态分析的基础上,采用多种方法,时有水气藏的配产和水侵特征进行研究分析,为有水气藏出水综合治理和开发提供科学依据.

The production capacity of the south block of Yulin gas field has reached 20×108m3/a since it was put into production in 2001. The south block of Yulin Gas Field is of great development difficulty because it is a low permeability gas reservoir which produces small proportion of gas condensate. To develop the south block efficiently and reasonably, eight supporting technologies were analyzed on the basis of summarizing the low temperature separation (LTS) technology used in the south block and its application performance. The eight supporting technologies consists of high pressure gas gathering technology, centralized methanol injection technology, multi-well heating technology, throttling refrigeration, intermittent metering, LTS, production data automatic collection and monitoring and gas-driven power generation technology. The operation characteristics and performances of LTS technology were studied and evaluated. The result offered references for future upgrade on LTS technology used in the south block.

There is only one kind of glass fabric composite,high cost and tubing plugging caused by the composite,in order to solve this problem,research of asbestos-fabric composite optimizing selection is carried on.By means of a great deal of indoor experiments,asbestos fabric is chosen and its composite formula is developed,thus the sand control system of fabric composites is supplemented.The formula is coated sand+0.5%6?40 asbestos+10%ZCF externally consolidating agent.After the application of the sand control to Well Se5-2-3,the result shows that asbestos fabric mixes with sand carrier and sand more easily,and is pumped more easily than glass fabric.In addition,asbestos fabric does not plug tubing.So the first application of asbestos fabric sand control is successful and the adaptability of asbestos fabric sand control is farther proved.By the end of November of 2006,this well had been in normal production with choke of 6 mm,with no sand fluxing,and with average gas yield of 6.1×104 m3/d and water yield of 0.17 m3/d.

After analytical research on plugging during the gath- ering and transferring process for gas wells in Yulin gas field,natural gas is found to easily become hydrates under high pressure and low temperature,resulting in the plug- ging of surface pipelines.According to generation princi- ples of hydrates,methanol injection is adopted in Yulin gas field to prevent hydrates generation.Based on con- sumption characteristics of methanol,the calculation method of rational methanol injection is established.By u- sing this method,the methanol injection in Yulin gas field becomes more scientific.It not only decreases the fre- quency of plugging,but also reduces the methanol con- sumption,which provides a reference basis for gas wells in gas field.