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Vertical distribution structure applicable to treatment of oil-containing drillings in offshore oil-gas development

A vertical arrangement and drilling cuttings technology, which is applied in earthwork drilling, wellbore/well components, flushing wellbore, etc., can solve the problems of inapplicability to large-scale promotion and application, inapplicability to offshore working conditions, and high processing costs. Achieve the effect of improving thermal efficiency and heat utilization rate, meeting requirements, and green treatment

Pending Publication Date: 2018-06-05
SOUTHWEST PETROLEUM UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment of oily drilling cuttings produced in the process of offshore oil and gas development at home and abroad generally adopts the treatment method of "collection at sea-delivery by ship-centralized treatment on land" or re-injection into the formation. However, the former treatment cost is high, and the latter not only wastes a lot of base oil resources, and the technical difficulty is high, the cost is high, and it is not suitable for large-scale promotion and application
In addition, limited by the deck area of ​​the offshore drilling platform, the treatment methods such as microbial treatment, solvent extraction, and incineration used in the treatment of oily drilling cuttings on land cannot be applied to offshore working conditions due to the large footprint required

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  • Vertical distribution structure applicable to treatment of oil-containing drillings in offshore oil-gas development
  • Vertical distribution structure applicable to treatment of oil-containing drillings in offshore oil-gas development
  • Vertical distribution structure applicable to treatment of oil-containing drillings in offshore oil-gas development

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0019] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 As shown, the present invention is a vertical layout structure suitable for oily drilling cuttings treatment in offshore oil and gas development, including three parts: electromagnetic heating system, vertical hammer mill assembly, sealing and support system.

[0020] The vertical hammer mill assembly includes axial hammer mill blades 12, radial hammer mill blades 17, transmission shaft 11, vertical hammer mill cylinder 15, end cover 2, spoiler 4, axial hammer mill blades 12 It is installed on the transmission shaft 11 in the way of spline connection, and the axial hammer mill blade 12 is installed on the bottom end of the transmission shaft 11 through the limit screw 14; the axial blade base 20 of the axial hammer mill blade 12 is a six-blade structure , the hammer mill bod...

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Abstract

The invention belongs to the field of environmental protection of offshore oil-gas fields and particularly provides a vertical distribution structure applicable to treatment of oil-containing drillings in offshore oil-gas development. The vertical distribution structure comprises three parts, namely a vertical hammer mill assembly, an electromagnetic heating system, a sealing and supporting system. The oil-containing drillings enters the vertical hammer mill assembly by a feeding channel, and a transmission shaft drives radial hammer mill blade and axial hammer mill blades to rotate, so that solid phases in the oil-containing drillings are continuously hammer-milled and crushed, further the hammer-milling heat is generated, and the oil-liquid diffusion distance is reduced; simultaneously,due to the electromagnetic heating system, the temperature of a vertical hammer-mill drum body is increased, so that under the compounding action of hammer-milling heat and electromagnetic heating, the oil liquid in the oil-containing drillings is vaporized and separated; a heat-insulating layer wrapping outside the vertical hammer-mill drum body can inhibit heat loss effectively. The vertical distribution structure provided by the invention solves the defects and shortages of other structures well, has the advantages of small occupied area, high treatment efficiency and low energy consumption, high-efficiency and safe treatment of the oil-containing drillings are realized and the environmental protection requirements of green development of the offshore oil-gas development is met.

Description

technical field [0001] The invention relates to a vertical arrangement structure suitable for processing oily drill cuttings in offshore oil and gas development, belonging to the field of environmental protection of offshore oil and gas fields. Background technique [0002] With the deep development of offshore oil and gas fields, higher and more stringent requirements are put forward for drilling fluids, and oil-based drilling fluids are widely used in offshore oil and gas drilling because of their good rheology, fluid loss control and lubricity. Even the entire well section will be accompanied by a large amount of oily cuttings. Oily drilling cuttings contain a large amount of waste oil, drilling fluid additives and other harmful substances, which will cause great harm to the marine environment if not handled properly. The research level of my country's oily drilling cuttings processing equipment and technology has become one of the environmental bottlenecks restricting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/06
CPCE21B21/06
Inventor 黄志强徐子扬李琴李前春张新发胡东锋陈振权银虎郭亮叶文勇王玉李世勇徐军张文远蒲凯伦黎伟
Owner SOUTHWEST PETROLEUM UNIV
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