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Caijiamiao-bazhu Chang7Technical Countermeasures Research Of Reservoir Development

Posted on:2015-04-11Degree:MasterType:Thesis
Country:ChinaCandidate:S H WangFull Text:PDF
GTID:2181330467975884Subject:Oil and gas field development project
Abstract/Summary:PDF Full Text Request
In recent years, with the degree of in-depth exploration, reservoir in Ordos BasinYanchang7show a larger resource potential and development prospects are important tosucceed strata in the Ordos Basin. District7case studies of reservoir delta system in the deltafront facies are low permeability reservoir. The main features of such resources are tightreservoirs, low porosity and low permeability, poor physical properties, abundance is low,due to the sedimentary environment is complex, tight sandstone reservoir capacity is low andthe pressure-sensitive effects exist, thus causing the difficulty of developing large. Now, withthe increasing maturity of horizontal well technology, which is reflected in the developmentof tight sandstone reservoirs in a greater advantage, but low permeability reservoirs in thecountry, whether the scope of application development is still relatively limited scale,according to the research paper domestic use of horizontal wells in low permeability sandstonereservoir on the basis of combined research and development blocks block perimeter has beenwell developed network of practical, considering the vertical wells, horizontal wells and mixwell network nets and other forms of development of dynamic characteristics different wellsfrom row spacing, affect the initial production rate, stress sensitivity, etc. on wellproductivity, while the effects of different parameters on oil well network capacity to carryout a comprehensive analysis. On the basis of the current problems in the ultra-lowpermeability reservoir integrated network adaptability and development wells on the study ofultra-low permeability reservoir drive system and an effective form of reasonable well,combining the principles of economic evaluation, optimization design a suitableCai Jiamiao-Bazhuarea of low permeability reservoir wells arrangement method hasimportant practical value of production practices.This paper, based on the geological characteristics of the reservoir study, acomprehensive evaluation of the reservoir. Use of reservoir engineering theory with thesuccessful development of low permeability reservoir theory, and contrast similar blocks ofhorizontal wells draw results for a reasonable length of7injection reservoir parameters suchas technical indicators to develop research, and ultimately determine the reasonable limits ofthe parameters. By demonstrating the study of tight sandstone gas reservoirs fracturedhorizontal wells and wells network forms a dense reservoir system during development of various parameters on the development of indicators and the influence of the dynamiccharacteristics of the well developed network forms under different well as developed toprovide theoretical guidance and basis. To improve the yield of oil wells, the reservoir has agood cost-effective development of guiding significance for the entire region of Ordos Basinoil rational development of low permeability oil field, improving economies of scalereservoirs have important reference value and significance.
Keywords/Search Tags:Long7reservoir, Ultra-low permeability reservoir, Waterflooding, Mix wellnetwork
PDF Full Text Request
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