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Research And Application On Reservoir Fluid Inclusion Technology

Posted on:2014-08-13Degree:DoctorType:Dissertation
Country:ChinaCandidate:X F PanFull Text:PDF
GTID:1260330425979822Subject:Oil and gas field development project
Abstract/Summary:PDF Full Text Request
From the article published on Nature in1984that wrote by Haszeldine etc. which announced the important application of fluid inclusions on the reservoir diagenesis and hydrocarbon reservoir ages, the studies on the fluid inclusions of the reservoir have getting an expensive application in the oil and gas research field, and it is becoming one of the hearty welcome questions and a deeply directions on petroleum and natural gas to study now, most of the international petroleum departments, such as the Conoco, the Amoco and the Exxon Mobil company etc., are the appliers and the urgers. The thesis opens a thorough research to this with Subei basin for the example.The thesis puts forward the system classification of fluid inclusions for the very first time which is applicable to the reservoir of deposition basin. According to the different genetic classification and considering the physical chemistry appearance of fluid inclusions under the standard conditions, it is divided into two major type:protogenesis and secondary fluid inclusions; Points out eight principles that living to distinguish:the cracks, the microfissure, the grain sizes, the appearance, the even temperature, the distribution, the volumetric efficiency and the host mineral; pointes out the research object also.On this foundation, the thesis have a synthesizes study aiming at the fluid inclusions of the reservoir, Subei basin, through by the ultraviolet spectrum, the infrared spectrum of and the Raman spectrum for the very first time. The research expresses the ultraviolet spectrum analysis is a new kind of methods that identifies from the saltwater inclusions to the hydrocarbon inclusions:the salt water inclusion without fluorescence but the hydrocarbons with the different fluorescence based on the diverse grade of maturity of the oil/gas; the infrared spectrum analysis shows the different characterizes of the diverse migrated time of the oil and gas, the more low of CH2/CH3is, the more high of oil matured degree; the low temperature Raman spectrum technique analysis results the main salt type of the reservoir is a NaCl and CaCl2.In the meantime, the grain fluorescence index number(GOI) analysis enunciates the difference of the reservoirs that with the different oil/gas display of the Gaoyou basin, and GOI=6%is a divide index sign.The thesis built up the PVT method for the reservoir fluid inclusions, through the software of FIT get the hydrocarbon compositions of the different matured degree of the hydrocarbon inclusions. The results show the increasing content of CH4with the matured degree of oil/gas in the reservoir which matching the rule of oil/gas evolutionary process.The thesis for the first time research the oil/gas migrate direction by the concept of streaming potential of fluid inclusion in the oil zone of Shanian and Fumin, Gaoyou basin. The results shows the reducing tendency from southwest to the northeast of the Shanian oil zone about the streaming potential on the whole of the oil/gas accumulation, the Fumin oil zone with the characters of the reducing tendency from the south to the north on the profile and the oil/gas migration with the tendency from south to the north on the whole. Considering the structural system and the fault plugging of the zone, judging the beneficial exploration area.For the first time, the thesis analyzes the tectonic movement to the Gaoyou sag through by the characters of the fluid inclusions plain(FIP), and discusses the relationships between the tectonic movement and the oil/gas accumulation. Considering the structural feature history, the author makes sure that the deep depression of Funing formation of Gaoyou sag get through fourth tectonic movement which matches the fourth tectonic movement:the WuBao in the end of the Funing formation depression, the ZhenWu in the Dainan formation depression, the SanDuo in the Sanduo formation deoression and the YanCheng in the Yancheng formation depression in proper sequence.
Keywords/Search Tags:fluid inclusion, spectrum analysis, petroleum accumulation schedule, oil/gasmigrate direction, subtle reservoir
PDF Full Text Request
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