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Study on the Characteristics Carbonate Reservoir of Ordovician’s Yinmaill of West Part of Tarim Baisin

Author: WangHu
Tutor: YuBingSong
School: Chinese Geology University (Beijing)
Course: Mineralogy,petrology, Mineral Deposit Geology
Keywords: Yingmaili Carbonate Sequence stratigraphy Sedimentary facies Reservoir Evaluation
CLC: P618.13
Type: Master's thesis
Year: 2011
Downloads: 207
Quote: 0
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Abstract


The Tarim Basin is one of the important oil and gas resources in western China replacement area . Yingmaili low level of oil and gas exploration in the Tarim Basin , one of the areas in urgent need of effective resources of oil and gas reservoir evaluation work carried out in the area, new areas of . The purpose of this paper is to use the theory and methods of sequence stratigraphy , sedimentology , earthquake geology , reservoir geology , sedimentary facies of carbonate strata Tarim Basin Yingmaili area constitute the system and reservoir characteristics to control factors from the causes of the analysis , to investigate reservoir formation conditions and distribution law , provide the scientific basis for the prediction of favorable reservoir zones . First, the principle of sequence stratigraphy , outcrop , core, log data integrated , the division of the single well section sequence , thereby establishing Yingmaili Ordovician the Yingshan group and Yijianfang of high-resolution ( high-frequency ) layer sequence stratigraphic framework . The Yingshan is divided into five high-frequency sequence , the Yijianfang is divided into two high-frequency sequence . The major development of the study area, restricted platform , can be further divided into Taiwan for Beach subfacies and beach lagoon subfacies . Secondly , through the study of the reservoir petrology and reservoir characteristics of the area single well , the combination of the type of control factors of carbonate reservoirs , explore of the Yingmaili carbonate reservoirs pore types , hole infiltration characteristics, characteristics of reservoir properties , reservoir type characteristics , preliminary analysis of a the reservoir type Yingmaili control factors , combined with sedimentary facies belts and reservoir characteristics , reservoir preliminary evaluation of Yingmaili forecast. In summary, in the region of Yingmaili development of high-quality carbonate reservoirs of the relatively poor conditions . But strong denudation and tectonic fractures, can greatly improve the area carbonate reservoir properties . In addition , the reservoir formed HST four sea-level fall the parasequence interface control , so the reservoir is often developed in the top or in the upper part of the high-frequency sequence . Comprehensive analysis, Taiwan for Beach subfacies most favorable sedimentary facies belts , which Yingmai - Yingmai 206 - Yingmai 201 - British buy 202 wells first-line is the most developed and widely distributed , with good oil exploration prospects.

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