... pressures in any layer. In simple DASS well, the draw down of individual layers can not be maintained. The drawdown of individual layers depend on the maximum reservoirs pressure and the flowing bottom hole pressure to be maintained. Suppose, three close spaced HC bearing layers completed with production...

... Abstract Formate brines and drilling fluids were primarily developed for high pressure drilling and completion applications. This completion fluid system is now being employed in more benign pressure environments and also to drill and complete formations with specific properties...

... compartments. However, the ICDs are passive devices, i.e., once they are set in place in a completion string they cannot be adjusted to ensure equalized flow when reservoir conditions change during oil production or water injection. This paper introduces a new technology called Multi-Node Intelligent Well...

... Abstract The Daqing Oilfield, a huge complex consisting of many individual oil fields, is located in the Songliao basin in northeastern China. As reservoir development continues, the target zones become thinner and tighter. Horizontal well completion and fracture stimulation have thus become...

... drilling oil field directional drilling underbalanced drilling china spe 131844 process ubd oilfield gas drilling annular pressure drilling ubd equipment complexity application underbalanced drilling technology cnpc completion drilling operation ubd valve air hammer circulation...

... Abstract This paper describes sand control failure of a well in Bohai Bay which has experienced four workovers and one acid treatment. This well adopted cased-hole premium screen completion initially, changed to another premium screen completion in the 2nd workover and gravel packed in the 4th...

... performance. drilling performance personnel drill string operator contractor drilling drilling team well deliverability spe 132071 drilling operation innovation completion drilling platform modification rig platform zhao dong continuous improvement installation upstream oil & gas...

... Abstract The effect of completion techniques and reservoir heterogeneity on CO 2 storage and injectivity in saline aquifers has been studied using a compositional reservoir simulator CMG-GEM. Two reservoir models were built using data extracted from publications, to represent a deep saline...

... are shut-in prematurely, locking-in well production and remaining hydrocarbons. Very fine, poorly sorted formation sands and uncertainty in general about formation sand particle size distribution leads to a challenge in designing robust downhole sand control completions. Sometimes we get it wrong resulting...

... handling capacity issues as a result of high water cuts. Additionally, there are no more slots available in the existing platforms for infill drilling. Typical completions include sand-control devices such as gravel packs and fracture packs inside 9 5/8-in casing with zones separated by packers...

... completion system was selected in ABQQ-A as an alternative to conventional artificial lift methods, like an electric submersible pump (ESP). The concept of natural gas lift or auto gas lift has been discussed by Kumar et. al. ref, 3 , Glandt described the application of intelligent wells to natural...

... Abstract The importance of ensuring maximum production of a well throughout its lifetime is unquestionably very important for the operator. Well lifetime starts from the beginning (i.e. drilling and completion) and proceeds through production, production decline, and finally consideration...

... identifing the features contributing to water production and enabled real time decision making to optimize well path and sometimes extension of the well length by correlating real time resistivity data with real time production. RTRC also enabled optimum completion selection to maximize production as well...

... Abstract Industry experience has shown that frac pack completions can provide effective production stimulation and reliable sand control for unconsolidated sand reservoirs. One of the more rewarding areas of opportunity is in the completion of longer and more complex intervals that can...

...-linear systems are considered in this work, providing a basis for the analysis of reservoirs that exhibit Darcy and non-Darcy flow, respectively. An extension of the conventional Selective Inflow Performance analysis is presented in this paper to obtain estimates of the formation and well completion...

... Abstract In the winter of 2005, the first multistage completion in an openhole, ultratight sandstone reservoir of the Dot Three field, China, was successfully completed using hydrajet-fracturing technique. Six propped hydraulic fractures were placed individually at strategically selected...

... Abstract Slotted-liner is a relatively simple and cost-effective well completion technique for horizontal wells. However, fluid flow into a slotted-liner completion is quite complicated due to three dimensional flow convergence around slots and limited open-to-flow areas. Furthermore...

... Abstract Optimal completion design has been practiced over the past years through detailed well performance evaluation, and improved completion selection workflow. Six field case studies will be discussed in this paper to demonstrate the methodology to achieve the best completion design under...

... design, selection of fit for purpose technologies and the complete well placement cycle including detailed analysis on the drilling and steering challenges while placing horizontal well through reactive shales and channel sand environmentThe paper also discusses about various completion strategies...

... was sidetracked thrice after stuck pipe incidences and finally completed as a 30 deg deviated well with an AFE over run of 300%. Taking leaf from experience of horizontal drilling in Muglad basin, rotary steerable system (RSS) has been deployed to drill horizontal well in Umm Bareira field. This field is shallow...