Question: Well Test Design Task Well X is an deviated appraisal well drilled in Block 1 which is located offshore Miri, Sarawak. The well was spudded

 Well Test Design Task Well X is an deviated appraisal well

drilled in Block 1 which is located offshore Miri, Sarawak. The well

was spudded using GSF-135 semi sub rig in a water depth of

70 meters. The nearest offset well is Well Y due 20km northwest

which has a proven gas reserve with moderate carbon dioxide concentration in

the Layer II and Layer VI sandstone of Middle to Late Miocene.

You are a well test engineer in an oil and gas operating

company being put in charge to design a well test operation for

Well Test Design Task Well X is an deviated appraisal well drilled in Block 1 which is located offshore Miri, Sarawak. The well was spudded using GSF-135 semi sub rig in a water depth of 70 meters. The nearest offset well is Well Y due 20km northwest which has a proven gas reserve with moderate carbon dioxide concentration in the Layer II and Layer VI sandstone of Middle to Late Miocene. You are a well test engineer in an oil and gas operating company being put in charge to design a well test operation for well X to appraise the potential of proven gas reservoir in Layer IV. The objectives of your well test include: 1. To confirm the lateral extent of the proven gas reservoirs 2. To obtain reservoir data (e.g. pressure, temperature, permeability and reservoir model) 3. To evaluate well deliverability and flow performance (Production rate and skin) 4. To confirm a fault that geologist estimate to be 500ft south of Well X The reservoir properties and well derived from open hole logs of Well X is available in Appendix section. The following tasks below are to be addressed when completing this assignment: 1. Justify the well test production and shut in sequence to be selected in order to fulfil all the well test objectives. 2. Evaluate the Gas Pressure-Volume-Temperature (PVT) Properties based on any gas fields to be used. Justify the assumptions taken in your field of study for the complex engineering problem on your field of study based on the rock and fluid properties 3. Evaluate your test design model with the input data chosen a. Justify the production rates and any input data and/or reservoir/well models selected based on your assumption that is relevant to this test design b. Summarise test design solution results with semilog and log-log well test interpretation plots of your model c. Evaluate your innovative test design model results against the well test objectives 4. Predict the problems that may occur during the well test operation. Your explanation must include the discussion of the results obtained and how your test design is able to mitigate the possible scenarios that may occur. 5. Summarise your analysis and findings for the given complex engineering problem. 6. Defend your innovative solution for this complex engineering problem in a 10-15 minutes tutor assessment. Grading Criteria: Organize your work in a report detailing your findings. You may include any relevant calculation, illustration, graph or table to support your work. Attached in this assignment are Appendix A, which is the general requirements that is needed in preparation of the report, Appendix B which is the discussion on how to conduct referencing when preparing the report and Appendix C is the grading criteria for this assignment. Well X Actual Survey Geodetic Report APPENDIX C Well X Completion Schematic

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