By Wan Renpu
As soon as a average gasoline or oil good is drilled, and it's been validated that commercially manageable, it needs to be "completed" to permit for the circulate of petroleum or common fuel out of the formation and as much as the skin. This strategy contains: casing, strain and temperature assessment, and the correct instillation of kit to make sure a good move out of the good. lately, those strategies were drastically superior by means of new applied sciences. complicated good crowning glory Engineering summarizes and explains those advances whereas delivering professional suggestion for deploying those new leap forward engineering platforms. The ebook has subject matters: one, the assumption of stopping harm, and fighting formation from drilling into an oil formation to placing the good advent degree; and , the usage of nodal procedure research approach, which optimizes the strain distribution from reservoir to good head, and performs the sensitivity research to layout the tubing diameters first after which the construction casing measurement, in order to in attaining entire approach optimization. With this e-book, drilling and creation engineers will be capable of enhance operational potency by way of using the most recent state-of-the-art know-how in all points of good crowning glory in the course of improvement drilling-completion and paintings over operations.One of the single books dedicated to the main applied sciences for all significant facets of complex good of completion activities.Unique assurance of all features of good finishing touch actions in response to 25 years within the exploration, construction and final touch industry.Matchless in-depth technical recommendation for reaching operational excellence with develop strategies.
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Extra resources for Advanced Well Completion Engineering, 3rd Edition
Sample text
At present, there is no quantitative standard of interlayer pressure difference in China. The following three methods are generally used: (1) dual-string separate-layer production in a well; (2) single-string separate-layer production with packer; and (3) for continuous production using flowing, gas lift, electric submersible pump, or screw pump, installation of a bottomhole choke at the high pressure reservoir to decrease its flowing pressure so that it might be close to the flowing pressure of the low pressure reservoir.
Detailed core analysis and the reaction product appraisal before steam injection are of great significance for the prediction and prevention or reduction of formation damage. Grain Size Analysis. Grain size analysis means determining the contents of the grains of different sizes in the rock. Not only is grain size analysis applied broadly to studies of the genesis and sedimentary environment of sedimentary rocks and the classification and evaluation of reservoir rocks, but the parameter of grain size is also an important engineering parameter of gravel pack completion design of unconsolidated and weakly consolidated reservoirs and important ground for identifying reservoir heterogeneity in field development.
The reservoir permeability is decreased after the reservoir contacts fresh water. This phenomenon is termed water sensitivity. The water sensitivity experiment is used to understand the processes of swell, dispersal, and migration and to determine the conditions generating water sensitivity and the degree of formation damage caused by the water sensitivity, thus providing a basis for the designs of various completion fluids. Experimental Procedure and Result Analysis. With reference to the “Methods of flow test evaluation of reservoir sensitivity” (SY/T5358-2002), the following experimental procedure is adopted: (1) measuring core permeability Kf using formation water; (2) measuring core permeability using subformation water (experimental fluid with a salinity equal to 50% of the formation water salinity); (3) measuring core permeability Kw using distilled water (deionized water); (4) measuring the permeability of forward formation water; and (5) measuring the permeability of backward formation water.