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Redebai Oil Field Hypersalinity Machine Production Technology Research And Lifting Optimization

Posted on:2014-04-02Degree:MasterType:Thesis
Country:ChinaCandidate:H W ZhangFull Text:PDF
GTID:2251330401480763Subject:Oil and gas field development project
Abstract/Summary:PDF Full Text Request
Sucker rod pump oil recovery at present is one of the world’s oil industry, the traditional mode of production, and so far has been dominant in the oil production of artificial lift methods. In our country, about90%of the oil production Wells using sucker rod pumping technology, with the deepening of oilfield development, the proportion of sucker rod pump production continues to increase, therefore, must be through a variety of efforts to improve production of sucker rod pump production management level.Sucker rod pumping system is a strong systemic integration system, including three subsystems formation, wellbore and surface equipment. To keep the sucker rod pumping system is energy saving efficiently production, must take the three subsystems of mutual coordination. Using computer technology for parameter design of sucker rod pumping oil system and diagnosis is one of the important methods to improve the efficiency of pumping system.In sucker rod pump pumping well production process, due to the formation pressure, moisture content, production parameters such as gas oil ratio, working fluid level change, can make the system under the combination of swabbing parameters of the original no longer coordination, deep well pump displacement and formation fluid production capacity does not match the problem, results in the decrease of system efficiency, increase energy consumption. So we must study a set of feasible and convenient method, can find out inefficient stripper Wells and analyze its cause inefficient, and through the rod string and swabbing parameters optimization, makes the potential Wells can normal production.In this paper, we study the thermal debye oilfield, reservoir fluid of high salinity, high wax content and high gas liquid ratio to various ways of lifting brought greater difficulty matching and application, and wax scale card plugging, corrosion and scaling gas influence the phenomenon such as serious. Currently hot oil field has entered the later period of development, sucker rod pump is one of the hot oil field main body lifting technology, after a long period of form a complete set, technology is relatively mature, most of the sucker rod pump Wells running pump efficiency is high. Model but there are still too small, that the well working fluid level is high, large submergence, cannot play production capacity; Wax scale card plug and gas effect, cause a whole pump inspection cycle short, affect production, and increase the cost. So you need to based on oil well productivity analysis, combined with the reservoir characteristics, fluid properties, and the size of the lifting capacity, and problems arising from the oil well production and carry out lifting way adaptability evaluation, and carries on the corresponding technical supporting research. Combined with overall production performance at the same time, the pumping well system efficiency as the core, to heat.In order to better complete the task, this paper first analyses the field data, the situation of the rod pump application of sucker rod pump Wells, equipment corrosion, eccentric wear, and the lifting technology of oilfield application dynamic and supporting technology were studied. Then by Chinese and foreign literatures, made the overall train of thought and technology route of this study are as follows:1、Through the collection, according to the existing materials of hot debye oilfield, rod pump, sucker rod pump oil Wells machine on DianQianBeng Wells is analyzed using status. At the same time analyses, eccentric wear oil well corrosion and scaling, the status quo, as well as the high salinity under pump inspection status and present problems of the lift.2、The application of sucker rod pump and DianQianBeng well dynamic analysis. Including swabbing parameters of sucker rod pump, pump efficiency and submergence, the oil well inflow performance relationship, working condition of pump and DianQianBeng well production performance, etc. Through dynamic analysis, evaluate the hot oil field pumping unit, rod string, the lifting parameters adaptability, corrosion inhibition, and so on and so forth.3、According to the field stress and the current production situation, comprehensive consideration of the multiphase flow well inflow performance and analysis of the well was predicted by bottom hole into the case, through calculation, forecasts the downhole of oil Wells under different fluid productivity index for liquid.4、According to the principle of sucker rod pump Wells macro control diagram, combined with hot thanks to oilfield, map the macroscopic control of sucker rod pump Wells, through macro control chart, the oil Wells are divided into type pump area, reasonable parameters partial district, partial area, abnormal data area, an omission failure area five area. Find has the production potential of oil Wells, prepare the way for further optimization.5、Through the research of sucker rod pump Wells optimization design documentation, preparation of sucker rod pump Wells pole optimization calculation software, the main optimization of sucker rod pump Wells under the reasonable depth of pump, swabbing parameter and combination of rod string, and so on and so forth. Considering the well liquid producing oil production, utilization rate of polished rod load, equivalent stress, stress and load utilization, optimized for sucker rod pump lifting parameters of well production.
Keywords/Search Tags:Sucker rod pump adaptability evaluation, macro control diagram, under reasonable pump depth calculation, lifting swabbing parameters optimization, optimization of sucker rod pump rod combination
PDF Full Text Request
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