Publications

Picking a well candidate, having a proper design, and doing an effective post-job evaluation are major factors in achieving the best hydraulic fracturing results. Different fracturing techniques have been implemented in the Khaleel reservoir to enhance the fracture permeability. The well candidate targets are vertical and deviated cased-hole wells suffering from low production rates. A comprehensive procedure for selecting and ranking candidate wells for hydraulic fracturing has been developed. The procedure includes assessing the impact of key properties such as fracture height, depth of oil-water contact, the thickness of the oil column, and distance to faults. In addition, the lessons learned from previous appraisal campaigns have contributed to achieving optimum fracture geometry in future campaigns. Post-fracturing job techniques have been established with the operation guideline of the gradual start of pump production parameters to avoid backflow of proppant from formation to wellbore. A comprehensive strategy with the field operations team has been introduced as part of a good surveillance program to achieve well production targets. After obtaining production data, the team has conducted a comprehensive post-job evaluation on each aspect to improve the design by performing different techniques during pumping, modification of proppant concentration, and combining proppant size and chemical composition. This is part of several techniques that have been assessed along the process workflow. The improved workflow flow processes are highlighted and implemented for future selected wells of upcoming campaigns.