<progress id="hp31b"><nobr id="hp31b"></nobr></progress>

<sub id="hp31b"><th id="hp31b"><delect id="hp31b"></delect></th></sub>
    <menuitem id="hp31b"></menuitem>
    <sub id="hp31b"></sub>

      <nobr id="hp31b"><dfn id="hp31b"><listing id="hp31b"></listing></dfn></nobr>

      產品展廳>>項目研發>>深層大氣田控水開發基礎理論及技術方法研究

      氣井合理配產是氣井開發一直在探索,但遠沒有解決的課題。由于不同氣田的地質條件(裂縫、基巖、溶洞等)、完井方式(射孔、壓裂等)、邊底水位置、數量等不同,配產方式也不相同。例如中石油磨溪龍王廟是裂縫-孔洞(隙)型氣藏,克拉2氣田為孔隙型,而迪那是裂縫-孔隙型,中石化川科及元壩等大氣田是典型的海相沉積,儲層埋藏深,是含有天然型裂縫的儲集體,通過酸化式壓裂可獲得高產氣量。

      由于龍王廟、克拉及川科等氣藏地層條件的差異,氣藏流動模式也各不相同,試井資料解釋、生產數據分析及數值模擬等大型計算分析所依賴的滲流模型也不相同。因此難以形成一種配產模型和標準,也難以獲得氣井配產統一的公式,甚至對復雜地質構造和開發模型,滲流數學方程都難以建立(或存在流動方程也難以求解)。因此,本項目將從氣井配產、理論公式、室內實驗、等效數值模擬及大數據等四個方面進行全面研究,力爭在氣井配產基礎理論上有所突破,從而指導我國大氣田開發。

      考慮水侵優勢通道指數的氣井合理配產方法研究:完成見水時間理論推導,敏感參數分析,初步完成大數據材料整理

      不同類型儲層驅替與滲吸過程相對滲透率曲線研究:完成樣品驅替與滲吸實驗,完成分子動力學建模

      考慮相滲滯后和水封氣效應的等效數值模擬方法研究:完成等效數值模擬方法研究完成水封氣水膜測量實驗,繼續分子動力學計算

      基于大數據分析的氣田開發優化技術政策研究:完成大數據分析,篩選出見水時間影響因素,給出合理配產方法

      我公司多年來進行氣田控水開發研究,針對不同氣田的地質條件(裂縫、基巖、溶洞等)不同,完井方式(射孔、壓裂等)不同,邊底水位置、數量等不同,研究氣井配產理論;以氣田控水開發和提高采收率為目標,開展基礎理論與技術方法研究,未來在我國大氣田開發有很好的領先優勢。

      Products>>Project Development>>Study on basic theory and technical method of deep atmospheric field water control development

      Reasonable production allocation of gas wells is a subject that has been explored in gas well development, but it is far from being solved. Due to different geological conditions (fractures, bedrock, karst caves, etc.), well completion methods (perforation, fracturing, etc.), edge and bottom water positions and quantities of different gas fields, the production allocation methods are also different. For example, Moxi Longwangmiao is a fracture-cave gas reservoir, Kela 2 gas field is a pore reservoir, and Dina is a fracture pore reservoir. Large gas fields such as Sinopec Chuanke and Yuanba are typical marine deposits with deep reservoir burial. They are reservoirs containing natural fractures. High gas production can be obtained through acid fracturing.

      Due to the difference of formation conditions of Longwangmiao, Kela and Chuanke gas reservoirs, the flow patterns of gas reservoirs are also different, and the seepage models relied on for large-scale calculation and analysis such as well test data interpretation, production data analysis and numerical simulation are also different. Therefore, it is difficult to form a production allocation model and standard, and to obtain a unified formula for gas well production allocation. Even for complex geological structures and development models, it is difficult to establish seepage mathematical equations (or solve flow equations). Therefore, the project will conduct comprehensive research from four aspects: gas well production allocation, theoretical formula, indoor experiment, equivalent numerical simulation and big data, and strive to make a breakthrough in the basic theory of gas well production allocation, so as to guide the development of large gas fields in China.

      Research on reasonable production allocation method of gas wells considering water invasion dominant channel index: complete theoretical derivation of water breakthrough time, analysis of sensitive parameters, and preliminary sorting of big data materials.

      Study on relative permeability curve of different types of reservoir displacement and imbibition process: complete sample displacement and imbibition experiment and molecular dynamics modeling.

      Research on equivalent numerical simulation method considering phase permeability lag and water seal gas effect: complete the research on equivalent numerical simulation method, the water film measurement experiment of water seal gas, and continue molecular dynamics calculation.

      Research on technical policy of gas field development optimization based on big data analysis: complete big data analysis, screen out influencing factors of water breakthrough time, and give reasonable production allocation method.

      Over the years, our company has carried out research on gas field water control development, and studied the production allocation theory of gas wells according to different geological conditions (fractures, bedrock, karst caves, etc.), different well completion methods (perforation, fracturing, etc.) and different positions and quantities of edge and bottom water of different gas fields; With the goal of gas field water control development and enhanced oil recovery, the research on basic theories and technical methods will have a good leading advantage in the development of large gas fields in China in the future.

      高潮毛片无遮挡高清免费视频