牛东区块C_2k火山岩油藏单井产能论证

三塘湖盆地牛东区块上石炭统卡拉岗组（C2k）油藏为吐哈油田首次发现的裂缝一孔隙型火山岩油藏,其产量变化大、递减快,生产状况极不稳定。对于这种产量递减快,生产状况极不稳定的井,如何评价其产能难度非常大。深入研究确定单井产能,对于制定合理开发技术政策,实现科学高效开发具有十分重要的指导意义。这里采用两种方法计算油井产能,方法一是利用油井递减规律,确定油井初始产量和年平均日产量的关系,通过计算油井年产量求取油井年平均日产量,用油井年平均日产量作为油井单井产能;另外一种方法就是利用典型井的米采油指数法计算油井单井产能。     

Effects of high pressure treatment on physicochemical characteristics of fresh sea bass (Dicentrarchus labrax)

The effects of high pressure (HP) treatment (pressure: 220–250–330 MPA; holding time: 5 and 10 min; temperature: 3, 7, 15 and 25°C) on physicochemical characteristics (colour, thiobarbituric acid, trimethylamine nitrogen values) of fresh sea bass fillets were investigated. HP-treated sea bass fillets had higher lightness (Hunter L*) values than untreated sea bass fillets; the magnitude of changes increased with treatment pressure. HP-induced changes in colour generally imparted a cooked sample. The TBA value of HP treated sea bass samples (except 220–330 MPa, 3°C for 5 min) were found to be insignificant (P > 0.05) or significantly (P < 0.05) lower than the untreated samples. TMA-N content of HP treated at 220–250–330 MPa, 3–7–25°C for 10 min sea bass samples were found to insignificant according to the untreated samples. The results obtained from this study showed that the quality of high pressure treated sea bass is best preserved at 220 MPa, 25°C for 5 min.     

Effects of high pressure treatment on physicochemical characteristics of fresh sea bass (Dicentrarchus labrax)

The effects of high pressure (HP) treatment (pressure: 220–250–330 MPA; holding time: 5 and 10 min; temperature: 3, 7, 15 and 25°C) on physicochemical characteristics (colour, thiobarbituric acid, trimethylamine nitrogen values) of fresh sea bass fillets were investigated. HP-treated sea bass fillets had higher lightness (Hunter L*) values than untreated sea bass fillets; the magnitude of changes increased with treatment pressure. HP-induced changes in colour generally imparted a cooked sample. The TBA value of HP treated sea bass samples (except 220–330 MPa, 3°C for 5 min) were found to be insignificant (P > 0.05) or significantly (P < 0.05) lower than the untreated samples. TMA-N content of HP treated at 220–250–330 MPa, 3–7–25°C for 10 min sea bass samples were found to insignificant according to the untreated samples. The results obtained from this study showed that the quality of high pressure treated sea bass is best preserved at 220 MPa, 25°C for 5 min.     

The Effect of NaY nano-Zeolite on the Mechanical Properties of Silicon Insoles

Silicon - The chemical composition of the insoles inbounded materials influences some of the mechanical properties of silicon insoles including; tensile strain and modules and moisture adsorption...     

High hydrostatic pressure assisted extraction of pectin from sugar beet pulp

This study aimed to investigate the effect of high hydrostatic pressure assisted extraction (HHPE) (250, 350 and 450 MPa at 40 °C for 5 min with/without acid addition) of pectin from sugar beet pulp and compare its properties with pectin obtained from conventional extraction (CE). Degree of esterification (DE), galacturonic acid (Gal-A) content, Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) relaxometry experiments were performed on the obtained pectin powder. HHPE (12.23 ± 0.13%) doubled extraction yield compared to CE (6.43 ± 0.07%). Also, HHPE and acid addition were found to have a synergetic effect on the extraction. HHPE resulted in degradations in the polymer structure and reduced Gal-A content and DE. Pectin extracted with both methods was classified as low methoxyl pectin (LMP). According to the NMR Relaxometry results, HHPE decreased water holding capacity (WHC). In brief, HHP was shown to increase the pectin extraction yield and no changes in viscosity were observed at the concentrations studied (2 g/L).     

纳米晶抗EMI材料及相应滤波器研究

基于Ｈｅｒｚｅｒ理论,对Ｃｏ基薄带材料的纳米晶化及软磁性能改善进行了大量实验研究,解决了晶化中薄带变脆和内层绝缘磁耦合问题,成功地研制出用于射频域的抗ＥＭＩ无源滤波器。测试结果表明其有着优良的抗噪性能。     

提高大斜度井固井质量的方法

分析了影响吐鲁番油田大斜度井固井质量的因素,提出了改善大斜度井固井质量的几种方法,印调整钻井液性能,提高套管居中度,选择合适的隔离液和冲洗液以及优选水泥浆,并在吐鲁番油田的胜南2-1、胜南2-6、胜南2-5和胜南2-2定向井的固井施工中应用。结果表明,采用以上几项措施效果很好,能提高吐鲁番油田的固井质量。     

用微地震发现高速岩性及识别油气

微地震技术是一项利用微地震识别和描述油气地质构造的新方法、新技术，是一套信号采集、处理和分析技术，可以对火山岩、碳酸岩及油气藏有关的自然出现的低频地震波谱信号进行识别并作图。火山岩、碳酸岩及油气藏微地震分析可以解决其速度差异成像和地层成像问题，把地球内部存在的地震背景噪音作为火山岩、碳酸盐岩及油气藏微地震分析显示信号的震源，利用地震背景噪音谱，因地质构造介质不同及不同岩性差异而引起的透射损失，从而成为分析低频地震信号识别和描述油气地质构造的手段和方法。     

可分面元三维观测系统设计研究

在常规三维观测系统中,接收线间距是震源间距的倍数,震源线间距是接收器间距的倍数,这使得在震源线和接收线的每个交点处震源和接收器是重合的。这种布置理论上使得所有ＣＭＰ点都在每个面元的中心。可分面元观测系统排列的几何结构简单、便于野外施工。震源线的间距为道间距的非整数倍。接收线间距也不是炮点距的整数倍。接收线间距与震源线间距之比的余数决定了接收线方向和震民期望的次反射面元。ＣＭＰ点均匀分布在一个共反射     

丘陵油田钻井液技术

介绍了丘陵油田地层、岩性特点及易发生的井下复杂情况。在上部地层选用两性离子聚合物钻井液、中下部地层选用聚磺钻井液。经现场应用表明,两种钻井液抑制能力、防塌能力、携砂能力强,润滑性好,性能易于维护。两种钻井液能满足相应井段的钻井施工需要,避免了井下复杂情况的发生,实现了丘陵油田长裸眼安全钻井。