Technique for parallel processing drilling fluid and zero discharge of drill cuttings

Abstract

The present invention belongs to the field of oil and gas field drilling engineering technology, and relates to a kind of drilling fluid and drill cuttings zero-discharge parallel treatment process. Said treatment process includes the portions of drilling fluid selective solid-phase control, drill cuttings on-line treatment and recovery utilization and drilling fluid regeneration and utilization. Said process utilizes high-effective vibration sieve and sorting filter to make selective solid-phase control of drilling fluid, at the same time utilizes one-box type press filter to make discharged wet drill cuttings undergo the process of drying treatment and further recover the drilling fluid. The dried drill cuttings can be used for making bricks.

Description

Technical field: [0001] The invention relates to the field of oil and gas field drilling engineering, and is a comprehensive process including selective solid phase control of drilling fluid, on-line processing and recycling of cuttings, and recycling of drilling fluid. Background technique: [0002] At present, in the drilling production of oil and gas fields, only the circulating drilling fluid is often treated to remove harmful solid phases and maintain the continuous drilling operation, and the cuttings are directly discharged into the mud pool. [0003] In order to meet the requirements of the continuous development of drilling technology and technology, the drilling fluid solid control system has become very large, consisting of vibrating screens, desanders, desilters, centrifuges and some auxiliary equipment. Remove harmful solid phase in drilling fluid. The main disadvantages of the above-mentioned solid control equipment are: on the one hand, the humidity of the cu...

AI Technical Summary

Problems solved by technology

The main disadvantages of the above-mentioned solid control equipment are: on the one hand, the humidity of the drill cuttings discharged from the equipment is high, which not only wastes valuable drilling fluid, but also increases the volume of waste drilling fluid

The disadvantage of this method is poor initiative. In rainy weather, a large amount of liquid overflows and the polluted area is larger; after the mud pool is buried, the land cannot be recultivated for a long time, and the accumulation of drill cuttings will cause the land to be permanently barren

Oil fields also have to pay expensive land acquisition fees, young crop compensation fees, and environmental protection fees. At the same time, the waste of drilling fluid and cuttings has caused a huge waste of resources.

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