Oil-based drilling fluid drilling cutting processing while drilling system of offshore petroleum and natural gas platform

Abstract

The invention provides an oil-based drilling fluid drilling cutting processing while drilling system of an offshore petroleum and natural gas platform. The oil-based drilling fluid drilling cutting processing while drilling system of the offshore petroleum and natural gas platform comprises a material feeding conveying unit connected with an external oil-based drilling fluid drilling cutting collecting system, wherein a thermal desorption unit is connected with a discharging opening of the material feeding conveying unit in a communicating way; a desorption slag outlet in the thermal desorption unit is connected with a discharging conveying unit; a petroleum water mixed gas outlet in the thermal desorption unit is connected with a condensing unit; an outlet of the condensing unit is connected with a petroleum-water separation unit; a tail gas purification unit is arranged at an outlet of the petroleum-water separation unit; the thermal desorption unit consists of a reaction kettle anda vacuum pumping assembly connected with the reaction kettle; the reaction kettle is of a vertical cylinder structure; and a helical ribbon agitator is arranged in the reaction kettle. The oil-based drilling fluid drilling cutting processing while drilling system of the offshore petroleum and natural gas platform provided by the invention uses a fully sealed production process; dust pollution, petroleum pollution, air pollution and water body pollution are not generated in the production process; and the full sealing, zero pollution, resource recovery, cyclic utilization and green effect and environment protection of the whole operation process are completely realized.

Description

technical field [0001] The invention relates to an oil-based drilling fluid cuttings processing system while drilling, in particular to an oil-based drilling fluid drilling cuttings processing system for offshore oil and gas platforms. Background technique [0002] Oil and gas drilling engineering is an important link in oil and gas exploration and development. During the drilling process, oil-based drilling fluid or oil-containing drilling fluid additives are required in highly deviated wells and horizontal wells, or in complex formations such as water-sensitive formations, or when accidents such as pipe sticking occur when water-based drilling fluids are used. Oil-based drilling fluid has been widely used in the drilling and development of oil and gas fields due to its good viscosity stability, strong heat resistance, strong shale inhibition ability, good anti-pollution ability, good lubricity, and fast ROP. With the development of unconventional oil and gas, the use of o...

AI Technical Summary

Problems solved by technology

[0004] Chinese Invention Patent Publication CN107151088A discloses a treatment method for oily sludge on offshore platforms. Superheated steam shaft sleeves are easy to block and coke, occupy a large area, have a long process, and are inconvenient for steam preparation.

[0005] Chinese Invention Patent Publication CN106566576A Distillation pyrolysis device and material treatment method have difficulties in slagging, low treatment efficiency, and small treatment capacity, which cannot meet the processing requirements of offshore drilling.

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