Reservoir oiliness prediction is one of the important contents of reservoir description.The method of cluster analysis is used to identify oil,gas and water layers from well logging data.The prediction of oil reservoir is to obtain logging data at the well location and identify the oil content of the reservoir,so as to obtain an accurate understanding of the reservoir at a well location,which can make the identification more objective and obtain a complete understanding of the reservoir.In addition,selecting a suitable algorithm for attribute extraction can improve the accuracy and efficiency of the method.Therefore,this paper will focus on the identification of oil content in petroleum reservoirs based on K-Means cluster analysis.
This research uses uncertainty and sensitivity analysis methods on the mixed refrigerant refrigeration process,obtaining the range of energy consumption under the change of various input parameters and the influence of each parameter on energy consumption,providing guidance for the analysis of mixed refrigerant refrigeration processes.With the help of Python optimization algorithms,the process parameters were optimized,and the minimum energy consumption after optimization was 28497.74 kW.
本文综述了新型生物可降解高分子材料的合成方法及其在各个领域的应用.首先介绍了传统的生物可降解高分子材料的局限性,包括低强度、低热稳定性和较高的价格等缺点.然后,探讨了近年来的研究进展,重点关注了利用多种方法合成出具有优异性能的新型生物可降解高分子材料.最后,总结了这些新材料在医药、包装、农业和环保等领域的应用,并展望了未来的研究方向.
Exploring and promoting the integration and development of ecosystems and industrial models between petrochemical enterprises and industries such as Beidou and geographic information is a necessity for industry and industrial development,Establishing an enterprise level geographic information platform system is a requirement for petrochemical enterprises to achieve high-quality development and intelligent manufacturing.
After more than ten years of exploration,domestic offshore oil field technology service companies have formed their own models of offshore fracturing supported by vessels.The enhancement ships mainly based on mild integration have problems such as limited capacity,long operation time,and non-standard operation site,etc.which have limited the development of the technology services.This article compares the main parameters of multi-functional production enhancement ships,and combines the relevant characteristics of mature PSV s to propose the selection and supporting scheme of future moderately integrated multi-functional production enhancement ships,as well as the concept of expanding the supply of proppants.It also briefly analyzes the main design of highly integrated production enhancement ships in China.
Based on the raw materials,operating conditions and operating processes of oil storage tanks and process pipelines,the paper analyzes the mechanism causing corrosion of oil storage tanks and process pipelines.The equipment material of oil storage tank and process pipeline is mainly steel.Due to the constant change of the section of oil contact during use,different degrees of internal corrosion will be caused in different parts of the equipment inside.By summarizing and analyzing the corrosion characteristics of oil storage tank and process pipeline,the optimization suggestions such as strengthening protection testing during construction and regular non-destructive testing during use are put forward.
In the Bertam oil field in Malaysia,open fluid drilling was used to maximize the protection of reservoir from contamination.After drilling,a screen is run through the open hole section and a rubber breaker is inserted throughout the open hole section to remove the chemical additives embedded in the oil and gas pores during the drilling process to restore permeability in the near-wellbore area and increase oil and gas production.
With production stability,high production,increasing the reserves and tapping the production potential in Bohai Oilfield,it becomes increasingly urgent to develop and utilize non main reservoirs,such as thin interbed reservoirs,low permeability reservoirs,small lithology reservoirs,etc.In this paper,an integrated process of zonal water injection with cables was designed and developed based on the research results of reservoir geological analysis and column compatibility.In this process,a flexible zonal water injection string integrating a zonal packer and center tube was innovatively used instead of the original sand control mode(outer sand control tubing + inner water injection string)of water injection wells.Through further improvement,this process meets the requirements of intelligent water injection(testing and adjustment with cables,testing and adjustment without cable,etc.),and has obvious advantages,such as large displacement water injection,flexible zonal water injection,low casing sticking rate,short construction period,etc.This technology has been successfully applied 13 times in Bohai Oilfield,with good results.
介绍了碳酸氢钠干法脱酸的原理,该方法通过将碳酸氢钠与酸性气体反应,将其转化为二氧化碳和水,从而实现脱酸的目的.详细阐述了碳酸氢钠研磨系统的粒度控制技术的具体实施方案,包括选用合适的研磨设备和参数,采用粒度分级技术和粒度控制方法,以及优化研磨过程中的操作条件等.探讨了该技术的推广使用效益,指出了提高产品质量、降低生产成本和节约能源等方面的优势.
With the deepening of petroleum exploration and development,oil and gas exploration targets are mainly based on structural exploration and gradually transferred to lithologic exploration.The exploration of lithologic traps is rather difficult,which requires higher resolution of seismic data.Deconvolution is the main means to improve resolution in seismic data processing.It is a necessary and important step in processing.The conventional deconvolution method has many limitations.Inverse Q filtering is a deterministic time-varying deconvolution method based on a certain model.An improved adaptive time-varying prediction deconvolution method is proposed on the basis of the corresponding modules introduced in the anatomy.The validity of this method is verified by theoretical records,and experiments on actual seismic data in some areas have been done,and good treatment results have been seen.As a practical technology,the effect and efficiency should be considered synthetically.
Reciprocating compressors play a very important role in modern chemical production due to their high thermal efficiency,high exhaust pressure,and stable exhaust pressure.As a key component of reciprocating compressors,if the gas valve malfunctions,it will affect the normal operation of the compressor.The article analyzes the causes of valve failures in natural gas production and the actual operating conditions of reciprocating compressors,and proposes effective solutions to reduce the probability of compressor valve failures,improve the level of troubleshooting,and improve the efficiency of compressor use.
Acrylonitrile,as an indispensable raw material in the synthesis of fibers,rubber,and resins,has gradually been widely used in the production of acrylic fibers,acrylamide,nitrile rubber,acetonitrile,ABS resin,and AS resin.However,domestic acrylonitrile plants generally use propylene ammonia oxidation production technology,which results in a recovery rate of less than 90%for acrylonitrile products,while foreign acrylonitrile recovery rates are generally around 98%.The technological differences have caused adverse factors to the improvement of enterprise operating efficiency and technological development.Based on this,this article will briefly describe the current status of the recovery rate of acrylonitrile units,analyze the factors affecting the recovery rate of acrylonitrile units,and finally propose measures to improve the recovery rate of acrylonitrile units.
在满足燃烧正常的条件下,热电厂重点研究方向及课题是如何提高锅炉的负荷响应速度、燃烧效率和自动调节水平.长期准确、稳定地测量锅炉一二次风管内的风速、风量以及制粉通风量,其目的就是为了提高锅炉自动化投入率,合理地调整磨煤机风煤比例、合理配风,使锅炉燃烧稳定,提高效率.
In order to reduce the impact of high temperature and vibration on the hydrogenation reactor,causing bolt pre tightening force failure and reactor leakage,this article uses anti impact washers to compensate for the stress of the hydrogenation reactor flange bolts.Through theoretical calculation,the deformation amount of the anti impact washer is close to the critical instability,and its actual deformation amount is far less than the critical value,which prolongs the service life of the anti impact washer and improves the sealing performance of the flange
为进一步响应国家和公司关于信创战略的要求,立足油气田集输站场工控系统建设与运行,避免工控系统基础设施在关键技术方面被"卡脖子"带来的网络安全、数据安全、涉密安全等风险,梳理工控系统运行管理现状,开展国产化替代应用的研究与实践,提前完善优化对策,明确管控方法与实施路径,进一步提升安全高效、自主可控生产保障能力,夯实数字化、智能化油气田的建设基础.
This paper introduces the production and application of Unipol gas phase fluidized bed polypropylene process L5D98 film material.The production results showed that ADT5100 was used as the external electron feeder of L5D98,the reactor ran smoothly,the operation performance was good,the product index control was stable,the hydrogen conditioning was increased,the activity was decreased,and the particle size of the powder product was similar to that of L5E89.By studying the production process of L5D98 film material,it has good promotion value for production control and product optimization.
Logging data is crucial for conducting logging operations,Therefore,in this article,logging data is selected as the research sample,Starting from three aspects,the depth correction method was analyzed,Firstly,the stretching and correction methods of cables were analyzed.Secondly,the correction methods for speed were analyzed.Finally,the correction methods for relative depth were analyzed,Three methods are mainly introduced,The first method is depth control curve correction;The second method is the correlation comparison correction method;The third method is the correction method for stratigraphic sequence analysis.Through analysis,it was found that,The above methods are all relatively reliable.In addition,the specific advantages and disadvantages of these methods have been clarified through in-depth analysis,This has certain theoretical and practical significance for further strengthening the efficiency of logging work in China.
Back drag force calculation is the focus of horizontal directional drilling through construction,and there are many calculation methods,and the difference is large.In the calculation of drag force,the selection of calculation methods and calculation parameters often appears,especially the large calculation error may occur in the case of complex trajectory of large height difference and multiple curve segments.This paper analyzes the influencing factors of the drag force,introduces the typical calculation method and use conditions of the drag force,corrects the calculation formula of the capstan force,proposes the calculation method of the complex trajectory and verifies the drag force again according to the working condition before dragging.
The oil field construction in the beach sea area has the problem of"the onshore equipment cannot go down and the offshore equipment cannot come up",which leads to the rich oil and gas resources in the beach sea area of Bohai Sea in China but is difficult to exploit.Offshore oil onshore production technology is a special technology for exploiting oil and gas resources in beach areas.Drilling and completion technologies for offshore oil onshore production include cluster drilling technology,extended reach well technology,factory drilling technology and well cementing technology.Through the introduction and analysis of the key technologies of onshore drilling and completion of offshore oil,this paper summarizes the development status and trend of onshore drilling and completion of offshore oil in recent decades in China,forecasts the development direction of onshore drilling and completion of offshore oil in China,and has certain guiding significance for the improvement of onshore drilling and completion technology and theory of offshore oil in China.
The acidizing plugging removal technology has been widely used in oilfields,and the acid system has been optimized and improved according to the actual situation of the formation in major oilfields.This paper will introduce the application of this technology in low permeability Carbonate rock oil reservoirs and low permeability sandstone reservoirs from three aspects of acidizing principle,system classification and system application.
