zhang, yao zuo, jiye fei, xinyu dong, shimin
Hydraulic fracturing, especially pulse hydraulic fracturing, is an important method for extracting oil and gas from low-permeability reservoirs, improving recovery rates significantly. Pulse hydraulic fracturing, which involves varying injection rates to create pressure waves, outperforms traditional constant-flow fracturing methods significantly. ...
Wu, Lianjie Fang, Pan Huang, Yun Li, Gao Xu, Ji
Published in
Journal of Vibroengineering
The buckling behavior of tubular string is critical for safe oil and gas resource development. In practical engineering, the buckling of tubular string can appear in different development phases, such as casing putting into wellbore, BHA drilling rock, pipeline buckling, etc. Therefore, in this paper, the buckling behavior and buckling evolution of...
zhang, hongtao yan, xu cai, meng junliang, li feng, mingxi zhang, xiaochuan
Vortex drainage gas recovery has been used to carry liquid from gas wells. However, the traditional vortex tools in gas wells cannot produce long effective distance spiral flow at a low gas flow rate, and their operating mechanism has not been thoroughly analyzed. In this paper, the venturi acceleration vortex tool for a horizontal gas well is desi...
telin, aleksey karazeev, dmitriy vezhnin, sergey strizhnev, vladimir levadsky, aleksey mamykin, anton lenchenkova, lyubov yakubov, ravil fakhreeva, alsu akhmetov, alfir
...
Gas inflow control in oil wells is one of the most challenging types of repair and sealing operations, the success rate of which does not exceed, as a rule, 30%. Conventional shutoff methods are often ineffective for this purpose. For instance, cement solutions cannot be injected into wells in the required volumes, while gel screens can only tempor...
shanbin, he huang, ting bai, xiaohu ren, jiawei meng, kun hongyan, yu
The ultra-low permeability oil reservoir in the HQ oilfield within the Ordos Basin exemplifies a classic “three-low” oil reservoir characterized by low pressure, low permeability, and low abundance. Upon the commencement of oil well production, substantial initial production decline and inadequate pressure maintenance levels are encountered. Conseq...
barbosa machado, marcos vitor delshad, mojdeh sepehrnoori, kamy
This study used numerical simulations of CO2 storage to identify the benefits of horizontal wells for geological carbon storage, such as enhancing CO2 trapped in porous media due to relative permeability and capillary hysteresis. Two injection schemes were tested: one using a vertical injector and the other employing a horizontal well. The results ...
yang, yuxi tan, chengqian cheng, youyou luo, xiang qiu, xiangliang
Due to its abundant reserves, tight oil has emerged as a significant substitute for conventional petroleum resources. It has become one of the focal points of exploration and research, and a new hot spot in global unconventional oil and gas exploration and development. This has led to a significant increase in the demand for forecasting the product...
stańczyk, kamil hildebrandt, robert chećko, jarosław urych, tomasz wiatowski, marian masum, shakil sadasivam, sivachidambaram kempka, thomas otto, christopher ernst, priscilla
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This study, conducted as part of the ROCCS project, investigates the potential of coal seams for CO2 sequestration through in situ tests. The in situ tests, performed at Experimental Mine Barbara in Mikołów, Poland, involved injecting CO2 through a horizontal well into a coal seam, with variable well lengths and injection parameters. The experiment...
Lin, Tao Li, Tianliang Song, Hongzhi Yuan, Zhongtao
Published in
Journal of Physics: Conference Series
After many-turns of huff and puff of multi-component thermal fluid, only the heavy oil in a limited area near the wellbore is produced. However, the inter-well areas, namely the dead oil areas, are not influenced by multi-component thermal fluid. Therefore, it is necessary to carry out the research on multi-component thermal fluid flooding. The fac...
qin, shili zhang, ning cao, bobo yongsheng, an huo, runshi
During the development of horizontal wells in bottom-water reservoirs, the strong heterogeneity of reservoir permeability leads to premature bottom-water breakthroughs at locations with high permeability in the horizontal wellbore, and the water content rises rapidly, which seriously affects production. To cope with this problem, a new technology h...
