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Study on Integrated Control of Unconsolidated Sandstone in Mid-High Water Cut Stage for Yanmuxi Oilfield

Author: GaoQingXian
Tutor: ChenTaoPing;WuZheng
School: Northeast University of Petroleum
Course: Petroleum and Natural Gas
Keywords: Unconsolidated sandstone In high water cut stage Comprehensive management Sand control technology Pattern adjustment
CLC: P618.13
Type: Master's thesis
Year: 2011
Downloads: 49
Quote: 0
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Abstract


Loose sandstone reservoir layer Yanmuxi prominent contradictions , complex well conditions , wells cut rising water injection effect of variation underground situation becomes complicated process measures the effect becomes worse , especially measures of some single well point increase year by year to reduce input and output efficiency decreased , resulting in increased costs . In recent years, the oil fields began to carry out the work of the governance of the whole block , but to carry out a systematic study of oil field development in the late reservoir description , development analysis , the distribution of the remaining oil , yield measures undertaken not comprehensive enough , not the formation of a new system , and the lack of a comprehensive and detailed study , not the formation of a series of blocks of comprehensive management and supporting technologies . Based on reservoir heterogeneity , development status , exploitation characteristics , exploitation potential problems for system studies , reservoir geology , and advanced technology research , make a comprehensive adjustment program , and potential analysis . Content for the comprehensive management of the oil field development late , to establish a better research methods and ideas important to the oil exploration efficiency and overall technical level . The first oil reservoir development effect analysis , show that Yanmuxi oilfield remaining oil major types of one-way by acting , poor oil type , injection and imperfect and stagnation region type . Reasonable pressure system in the latter part of the comprehensive management countermeasures technology boundaries Research , reasonable diminishing rate reasonably Note mining than reasonable oil production speed carry out a detailed feasibility studies ; same time for geese Wood West loose sandstone out sand serious impact of the tubing string safety production demonstration of capacity and technical boundaries of the sand . Proposed adjustment in accordance with the the sedimentary microfacies well network technology based on the analysis of reservoir development , and mining of remaining oil -rich region and draw on a reservoir west well network control plane to poor regions mainly poor oil ; profile in order to improve spend the degree of adjustment measures based . Adjustment program is expected to be the waterflood reserves improved by 15% to 8% increase in oil recovery increase recoverable reserves of 1.2 million tons , the average single well , new production capacity of 116,000 tons , 1.2% of the oil production rate stable 5 years .

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Fuel deposits > Oil, natural gas
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