Interpretations that need correct depth such as fault are more accurate and easier where correct distributions of velocity in the area are available. Interval velocity is an important parameter in determining lithology, depth migration, reservoir characterization and even variation of fluid type in the oil reservoir. However, in this research modified the seismic interval velocity model is used for pore pressure prediction, but the correct velocity model is the most important seismic parameter (Zhu et al. Predrill pore pressure accurate prediction allows the appropriate mud weight to be selected and allows the casing program to be optimized, thus enabling safe by preventing wellbore collapse and economic drilling by reducing the cost (Cibin et al. Mud weight and fracture gradient are essential parameters to have wellbore stability, prevent blowout, lost circulation, kick, sand production and reservoir damages (Baofu et al. To have optimizing decisions for drilling decisions and well planning in abnormal pressured areas, it is essential to carry out pore pressure predictions before drilling (Hosseini et al. During the exploration phase, a prediction of pore pressure can be used to evaluate exploration risk factors including the migration of formation fluids and seal integrity (Hearn and Meulenbroek 2011 Swarbrick et al. Pore pressure estimation is important for both exploration and drilling projects (Jamali and Sokooti 2008). Sometimes maybe a simple interval velocity model has good results and matches with well data. The methods used for obtaining the interval velocity model for an area depend on the complexity of subsurface structure in the area (Mavko et al. Generally, the results show the normal trend for pore pressure in the area, except in the left side of the anticline in the 2D seismic section, because of tectonic uplifting. The results of the pore pressure model are validated by pore pressure data obtained by the MDT well test tool.
![hampson russell normalize logs hampson russell normalize logs](https://www.mdpi.com/energies/energies-14-05323/article_deploy/html/images/energies-14-05323-g013.png)
![hampson russell normalize logs hampson russell normalize logs](https://image1.slideserve.com/1888108/slide7-l.jpg)
Finally, the velocity model is converted to pore pressure using Bowers (in: IADC/SPE drilling conference proceedings, 1995) relation. The final acoustic impedance model is converted to the velocity model by removing density.
![hampson russell normalize logs hampson russell normalize logs](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs13202-019-00805-3/MediaObjects/13202_2019_805_Fig2_HTML.png)
Manufactured sonic logs are modified using the check shot interval velocity of Sefid-Zakhor well No. The goal of this study is to estimate pore pressure relation with subsurface velocity in the Sefid-Zakhor gas field. Predrill pore pressure accurate prediction allows the appropriate mud weight to be selected and allows the casing program to be optimized, thus enabling safety by preventing wellbore collapse and economic drilling by reducing the cost. Mud weight and fracture gradient are essential parameters to have wellbore stability, prevent blowout, lost circulation, kick, sand production and reservoir damages. To optimize drilling decisions and well planning in abnormal pressured areas, it is essential to carry out pore pressure predictions before drilling. During the exploration phase, a prediction of pore pressure can be used to evaluate exploration risk factors including the migration of formation fluids and seal integrity. Most information to help you learn and practice can be found in our wiki.Pore pressure estimation is important for both exploration and drilling projects. Related Subreddits (see the rules above for related subs as well) Read here for more info.Īlmost any post related to stocks and investment is welcome on /r/stocks, including pre IPO news, futures & forex related to stocks, and geopolitical or corporate events indicating risks outside this is offtopic and can be removed. Consider posting to r/SPACs, r/pennystocks, r/weedstocks, or r/CanadianInvestor instead. No penny stock discussions, including OTC, microcaps, pump & dumps, low vol pumps and SPACs. Non-ETF-related Crypto goes on r/CryptoCurrencies info. No bitcoin or crypto discussions unrelated to stocks. Trolling, insults, or harassment, especially in posts requesting advice, will be removed. Posts regarding this topic will be automatically removed. The Robinhood app should be discussed in /r/Robinhood. Instead, advertise here.Ĭontext & effort must be provided empty posts or empty posts with links will be automatically removed. Spam, ads, solicitations (including referral links), and self-promotion posts or comments will be removed and you might get banned. To submit a comment you must have a 3 day old account, 10 comment karma 75 comment karma to post** Almost any post related to stocks is welcome please read the rules below:ĭisclose any related open positions when discussing a particular stock or financial instrument.ġb.