公开(公告)号：US20140190689A1

公开(公告)日：2014-07-10

申请号：US14150359

申请日：2014-01-08

Applicant: Conocophillips Company

Inventor： Logan A. WARREN ,  Siluni L. WICKRAMATHILAKA ,  David A. BROWN ,  Thomas J. WHEELER

IPC: E21B43/24 ,  E21B43/16

CPC classification number: E21B43/166 ,  E21B43/243

Abstract: The present invention relates to a novel method of maintaining a steady and/or proper water-gas ratio for the wet in situ combustion process for oil recovery. In particular, the method comprises mixing water with a foaming agent, or some other colloid capable of generating foam, in addition to gas. The foam carries the water through heated reservoirs more efficiently and prevents separation from the gas. As such, more heat can be scavenged, thus an increased amount of steam is generated and transferred to the oil to increase its recovery.

Abstract translation: 本发明涉及一种维持用于油回收的湿式原位燃烧过程的稳定和/或适当的水气比的新方法。 特别地，除了气体之外，该方法包括将水与发泡剂或能够产生泡沫的一些其它胶体混合。 泡沫通过加热的储存器更有效地运送水并防止与气体分离。 因此，可以清除更多的热量，因此产生增加量的蒸汽并将其转移到油中以增加其回收。

公开(公告)号：US20140332209A1

公开(公告)日：2014-11-13

申请号：US14273071

申请日：2014-05-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Siluni L. WICKRAMATHILAKA

IPC: E21B43/24

Abstract: The proposed method is an improved chemical flooding of an oil reservoir, especially one containing heavy oil or bitumen, that is cheaper than traditional chemical flooding techniques. This is obtained by viscosifying the displacing phase with a polyol, such as glycerol and/or its derivatives. Glycerol and its derivatives are an excellent additive because they are cheaper than the more commonly used chemicals, work only as a viscosifying agent, do not alter the reservoir properties, and have a wide range of viscosity facilitating the displacement of a wider range of heavy oils. This improved chemical flooding can be used with any other enhanced oil recovery technique, including thermal means, solvent assisted and polymer floodings.

Abstract translation: 所提出的方法是油容器的改进的化学驱油，特别是含有重油或沥青的化学驱油，其比传统的化学驱油技术便宜。 这是通过用诸如甘油和/或其衍生物的多元醇对置换相进行增粘而获得的。 甘油及其衍生物是一种优良的添加剂，因为它们比较常用的化学品便宜，仅作为增粘剂起作用，不改变储层性质，并且具有宽范围的粘度，便于更宽范围的重油的置换 。 这种改进的化学驱油可以与任何其他增强的油回收技术一起使用，包括热方法，溶剂辅助和聚合物浸出。