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Research on Mud Logging Evaluation Technology for Deep Gas Zone in JiYang Depression

Author: WangJianFei
Tutor: ZhangJinLiang；DengMeiYin
School: Ocean University of China
Course: Mineral prospecting and exploration
Keywords: Jiyang Depression Deep gas Logging evaluation techniques Reservoir Evaluation Response characteristics Correction method
CLC: P618.13
Type: Master's thesis
Year: 2009
Downloads: 118
Quote: 1
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Abstract


With the rapid development of the world economy, the demand for oil and gas resources is increasing, conventional oil and gas exploration is no longer able to meet the needs of economic development, research and exploration imperative of unconventional oil and gas reservoirs, deep oil and gas resources in the development of the basin has become one of the ways to expand oil and gas reserves and production in many countries of the world. In recent years, the the Shengli oil region achieved a major breakthrough in the the deep cracked gas and coal-derived gas exploration, show good prospects for exploration of deep gas reservoirs in Shengli Oil Region, Shengli Oilfield important exploration direction one. Deep gas oil quality is extremely light, volatile serious, logging data and conventional oil and gas layer characteristics significantly different, with strong specificity and hidden, coupled with less Shengli Oil Region drilling deep gas wells, exploration of less conventional logging evaluation techniques to identify with greater difficulty, can not meet the needs of the deep gas exploration work must be based on deep gas reservoir geology, engineering, and logging their own characteristics, research applicable to deep gas layer logging evaluation techniques of this thesis, combined with regional geological data, test data and drilling data, the test results for the gas reservoir depth greater than 3500m wells were analyzed, and the same tectonic block, geological characteristics similar storage layer depth of stratigraphic, electrical measurement and interpreted as gas or non-gas wells and gas test results may have carried out analysis found mainly in Jiyang Depression is drilling deep gas wells concentrated in four regions, namely Dongying North with salt deep the Bonan trap the righteous 115 syncline with coal into gas development GUBEI low hill, Lijin Sag deep. This thesis is based on the porosity of NMR logging data penetration parameters and T2 spectrum anti-emerged to information to establish the use of magnetic resonance logging data for reservoir identification and evaluation of physical properties, the site reservoir properties quantitative evaluation to determine the lower limit of the producing formation of the physical properties of the deep gas NMR; deep gas on the response characteristics of the various logging data analysis on the basis of the evaluation of the reservoir properties, summed up the advantages of the evaluation parameters of the deep gas; on The influencing factors of the logging data correction method, the gas log, tank top gas, nuclear magnetic resonance and other advantages of the parameters of the correction method for identifying and deep gas; reservoir properties in the above evaluation, the individual information to establish Plate standards, based on the combined evaluation instance, the establishment of a deep gas reservoir evaluation procedures, and physical properties - gas measurement detection parameters evaluation criteria and Plate. Provide a reliable source of information and results of reference for subsequent geological studies, so as to further enhance the level of logging evaluation techniques.

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