On the basis of the analysis of field thermogeochemical data along abnormal zones of a thermal stream in the Bukhara-Khiva, oil-and-gas region of the Turan (Tegermen, Chagakul, Shimoly Alat, Beshtepa) was succeeded to...On the basis of the analysis of field thermogeochemical data along abnormal zones of a thermal stream in the Bukhara-Khiva, oil-and-gas region of the Turan (Tegermen, Chagakul, Shimoly Alat, Beshtepa) was succeeded to obtain important data on a deep structure of sites. Data of gas-chemical and geothermal observations show about confinedness of abnormal concentration of methane to zones of the increased values of the temperature field the measured values of temperatures (Tegermen Square and others). On geoelectric section mines 2-D of inversion of the MT-field depth of 4000 m are lower, among very high-resistance the chemogenic and carbonate deposits of the Paleozoic is traced the subvertical carrying-out abnormal zone. This zone is identified as the channel of a deep heat and mass transfer with which hydrocarbon (HC) deposits are connected. It is shown that electro-investigation when using a geophysical complex can and has to become “advancing” at exploration by oil and gas.展开更多
Oils,condensates and natural gases in the Kekeya Field,southeast depression of the Tarim Basin were studied for their geochemical characteristics. According to the distribution analysis of the C2/C3 values with C1/C2 ...Oils,condensates and natural gases in the Kekeya Field,southeast depression of the Tarim Basin were studied for their geochemical characteristics. According to the distribution analysis of the C2/C3 values with C1/C2 values,C2/C3 values with C1/C3 values,as well as C2/C3 values with dryness index,there are two different types of natural gases in the studied field,which are spatially regularly distributed. One is the oil cracking gas,located on shallow reservoirs over X52 reservoir,namely Upper oil legs;the other is kerogen cracking gas,located on X72 reservoirs,X8 reservoirs and E2k reservoirs,namely Lower oil legs. In addition,the distribution patterns of molar concentration of oils and condensates with different carbon numbers of the n-alkanes in the Kekeya Field indicate that the crude oils have experienced several kinds of secondary alterations,which were closely related to the charging of gaseous hydrocarbons after petroleum accumulation. These results indicate that,based on the research of δ13C values of individual hydrocarbons,heptane values and isoheptane values of light hydrocarbons and aromatic maturity parameters for oils,condensates and natural gases,oils and gases were charged at different geological time in the Kekeya Field.展开更多
考察了疏水缔合聚合物HAWP-18溶液的稳态流变性能及十二烷基硫酸钠（SDS）和烷基酚聚氧乙烯醚（OP-10）对HAWP-18溶液的影响。并以HAWP-18和十二烷基硫酸钠（SDS）制备了一种压裂液HAWP-18M,评价了其相关性质。结果表明：HAWP-18溶液的...考察了疏水缔合聚合物HAWP-18溶液的稳态流变性能及十二烷基硫酸钠（SDS）和烷基酚聚氧乙烯醚（OP-10）对HAWP-18溶液的影响。并以HAWP-18和十二烷基硫酸钠（SDS）制备了一种压裂液HAWP-18M,评价了其相关性质。结果表明：HAWP-18溶液的表观黏度随着剪切速率的增加而下降,随后基本保持不变。HAWP-18M压裂液具有较好的耐温耐剪切性能,在90℃、170 s-1的条件下连续剪切90 min,黏度仍能保持在50m Pa·s以上。HAWP-18M压裂液的储能模量（G＇）和损耗模量（G″）基本不受应力变化影响,并且G＇〉G″,说明HAWP-18M压裂液具有黏弹性并且以弹性行为为主。HAWP-18M压裂液触变性优于羟丙基胍胶（HPG）压裂液。HAWP-18M压裂液静态悬砂性能较好,在砂比（砂占压裂液的体积分数,下同）40%条件下,砂子的沉降速率为8.2×10^-4mm/s。在HAWP-18M压裂液中加入过硫酸铵破胶剂,80℃下,1 h内即可破胶,破胶液黏度在5m Pa·s以下,表面张力为25.14 m N/m,与航空煤油的界面张力为0.56 m N/m。展开更多
文摘On the basis of the analysis of field thermogeochemical data along abnormal zones of a thermal stream in the Bukhara-Khiva, oil-and-gas region of the Turan (Tegermen, Chagakul, Shimoly Alat, Beshtepa) was succeeded to obtain important data on a deep structure of sites. Data of gas-chemical and geothermal observations show about confinedness of abnormal concentration of methane to zones of the increased values of the temperature field the measured values of temperatures (Tegermen Square and others). On geoelectric section mines 2-D of inversion of the MT-field depth of 4000 m are lower, among very high-resistance the chemogenic and carbonate deposits of the Paleozoic is traced the subvertical carrying-out abnormal zone. This zone is identified as the channel of a deep heat and mass transfer with which hydrocarbon (HC) deposits are connected. It is shown that electro-investigation when using a geophysical complex can and has to become “advancing” at exploration by oil and gas.
基金Supported by the National Natural Science Foundation of China (Grant No. 40573030)
文摘Oils,condensates and natural gases in the Kekeya Field,southeast depression of the Tarim Basin were studied for their geochemical characteristics. According to the distribution analysis of the C2/C3 values with C1/C2 values,C2/C3 values with C1/C3 values,as well as C2/C3 values with dryness index,there are two different types of natural gases in the studied field,which are spatially regularly distributed. One is the oil cracking gas,located on shallow reservoirs over X52 reservoir,namely Upper oil legs;the other is kerogen cracking gas,located on X72 reservoirs,X8 reservoirs and E2k reservoirs,namely Lower oil legs. In addition,the distribution patterns of molar concentration of oils and condensates with different carbon numbers of the n-alkanes in the Kekeya Field indicate that the crude oils have experienced several kinds of secondary alterations,which were closely related to the charging of gaseous hydrocarbons after petroleum accumulation. These results indicate that,based on the research of δ13C values of individual hydrocarbons,heptane values and isoheptane values of light hydrocarbons and aromatic maturity parameters for oils,condensates and natural gases,oils and gases were charged at different geological time in the Kekeya Field.
文摘考察了疏水缔合聚合物HAWP-18溶液的稳态流变性能及十二烷基硫酸钠（SDS）和烷基酚聚氧乙烯醚（OP-10）对HAWP-18溶液的影响。并以HAWP-18和十二烷基硫酸钠（SDS）制备了一种压裂液HAWP-18M,评价了其相关性质。结果表明：HAWP-18溶液的表观黏度随着剪切速率的增加而下降,随后基本保持不变。HAWP-18M压裂液具有较好的耐温耐剪切性能,在90℃、170 s-1的条件下连续剪切90 min,黏度仍能保持在50m Pa·s以上。HAWP-18M压裂液的储能模量（G＇）和损耗模量（G″）基本不受应力变化影响,并且G＇〉G″,说明HAWP-18M压裂液具有黏弹性并且以弹性行为为主。HAWP-18M压裂液触变性优于羟丙基胍胶（HPG）压裂液。HAWP-18M压裂液静态悬砂性能较好,在砂比（砂占压裂液的体积分数,下同）40%条件下,砂子的沉降速率为8.2×10^-4mm/s。在HAWP-18M压裂液中加入过硫酸铵破胶剂,80℃下,1 h内即可破胶,破胶液黏度在5m Pa·s以下,表面张力为25.14 m N/m,与航空煤油的界面张力为0.56 m N/m。
