Process For Treatment Of Produced Water

A technology for producing water and mechanical methods, applied in separation methods, mining wastewater treatment, water/sewage treatment, etc., can solve problems such as inability to handle processes and abnormality, and achieve cost-effective, small capacity, cost- and energy-saving effects.
CN102428041AInactive Publication Date: 2012-04-25GENERAL ELECTRIC CO
1 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GENERAL ELECTRIC CO
Publication Date
2012-04-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A process for treating produced water in heavy oil production comprises, providing an oil / water mixture gathered from an oil / water collection well, whereby oil from said oil / water mixture is separated to provide an oil product and a produced water product containing oil, dissolved gases and dissolved solutes. Said produced water product is then deoiled, and the deoiled water subsequently passes though a membrane system, resulting in permeate water and reject. The resulting permeate water is sent on to a boiler system for production of steam, and the reject is introduced into an evaporator to result in distillate water and blow down. Thereafter, the blow down may be charged into zero liquid discharge treatment; and the distillate water added to the membrane permeate.
Need to check novelty before this filing date? Find Prior Art

Description

field of invention

[0001] The present invention relates to a method of preconcentrating produced water, particularly water produced during bitumen recovery in tar or oil sands. Background of the invention

[0002] In some geological formations, such as those known as oil sands or tar sands, steam is used to recover heavy oil in these formations. Steam is injected into heavy oil-bearing formations to heat the heavy oil or bitumen, making it more viscous and allowing the oil and water mixture to collect and be pumped to the surface. The steam that condenses into water and mixes with the oil, and is subsequently separated from the oil is called produced water. In new wells, the ratio of water to oil is about 3:1. As the well ages, the water to oil ratio changes and can be as high as 7:1. In some cases, the oil is separated from the produced water, which is recycled for reuse in generating steam for reinjection into the well formation.

[0003] Processing produced water to t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More