Reducing Production and Total Well Costs

AGUSMAN, ABDULLAH RIZKY Reducing Production and Total Well Costs. Jurnal Riset dan Teknologi. ISSN 2087-8540

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Abstract

As the drill bit enters the production formation, until the well is put on production, the reservoir formation is exposed to a series of fluids that will strongly affect the productive capacity of the reservoir. The invasion of filtrate and fine solids of drilling fluid, cement, completion, workover and stimulation fluids into the reservoir formation are a potential source of reservoir damage and reduce the well productivity. Many companies have been largely reservoir damage ignored and emphasis was placed on minimizing costs rather than maximizing productivity by minimizing reservoir damage. Reservoir damage can be minimized by selecting fluids to contact the formation as drilling fluid, and continue with all fluids used as cement and completion fluids. With minimal intrusion of drilling fluid and cement filtrates, the perforations extend through the zone of damage intruded by these filtrates. Filtered, solids– freemonovalent brine completion fluids in a near or underbalanced condition can dramatically reduce reservoir damage and maximize well production. Several circulation with a filtered solids – free fluid should be made until the returned fluid is clean, NTU < 30, prior to the placement of the filtered soilds – free monovalent brine completion fluid in the wellbore and perforation. Compatibility and chemicals reaction of filtered solids – free monovalent brine completion fluid with resrvoir fluid must be tested in the laboratory. Some filtered solids – free divalent brine completion fluids can form stable scale and emulsion blocks within the reservoir. All drilling and completion fluids chemicals to be carefully selected to ensure reservoir damage is kept to a minimum. The use of clean, less incompatible fluids during all post drilling operations plays an important role in maximizing well productivity. And one of the easiest and most economic methods of obtaining the required level of fluid clean – liness is through the use of a surface filtration system.

Item Type: Article
Subjects: Teknologi dan Ilmu Terapan > Teknik Perminyakan
Creators:
CreatorsNIM/NIDN
AGUSMAN, ABDULLAH RIZKY0306098005
Depositing User: Abdullah Rizky Agusman
Date Deposited: 20 Oct 2020 02:14
Last Modified: 20 Oct 2020 02:14
URI: http://repository.ubharajaya.ac.id/id/eprint/5840

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