【版主推荐石油英语翻译】之SADG发展简介——摘自SPE106901 [复制链接]

 

Two historical developments suggested the SAGD optimization process proposed in this paper.

First: From 1979 to 1984, BP Canada tested air injection as a follow-up process to fracture-assisted cyclic steam stimulation in the Clearwater formation at Wolf Lake2. It was expected that only 17% of the bitumen could be recovered using CSS(cyclic-steamstimulation) and that combustion as a follow-up process would increase the recovery factor. Bitumen recovery factor at the pilot increased from 15% with CSS to a cumulative of almost 30% with in-situ combustion. The equivalent SOR was reduced from approximately 6.2 to 2.3. It should be noted that air injection was successful in this application because the bitumen was first preheated and mobilized with steam.

Second: During SAGD operations, there comes a point where the cumulative SOR begins to increase indicating that it is no longer economic to continue steam injection. Injecting a non-condensable gas at this stage, to utilize the existing heat energy in place, can prolong oil production. This significantly reduces the operating costs compared to continued steam injection.

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怎么没人翻译呢

【版主推荐石油英语翻译】之SADG发展简介——摘自SPE106901
这篇文章提到了SAGD优化过程所经历的两个历史阶段。
第一阶段：1979-1984年，英国石油公司加拿大分公司在 Wolf Lake2的清水层，尝试了注空气作为辅助裂缝循环蒸汽驱的后续过程。结果显示使用循环气驱仅能采出17%的沥青质，燃烧作为后续过程能增加采收率。在实验区沥青质采收率从使用循环气驱方法的15%增加到用火烧油层技术累计量的30%。残余油饱和度从6.2降低到2.3。这表明注空气是成功的，因为沥青质首先被预热并且随蒸汽移动。
第二阶段：在SAGD技术实施过程中，当累计残余油饱和度开始增加时，继续注蒸汽不再有经济效益。在这个阶段，为了利用现存的热能，注入一种不可压缩的气体能够延长油的产量。相比于继续注蒸汽，注不可压缩气体极大的降低了操作成本。

本文提出两个SAGD作业优化的历史发展阶段：
首先，从1979到1984，BP加拿大公司在沃尔夫莱克湖(Wolf Lake)的清水层中进行了压裂辅助蒸汽驱的后续注蒸汽测试。据称，仅仅使用循环蒸汽增产(CSS)方法只能产出17%的沥青，但是后续的火烧油层技术将会增加采收率。在此次试验中沥青的采收率从使用CSS的15%的采收率挺高到CSS联合ISC技术的30%。相应的SOR从6.2降低到2.3。应该注意到此次注蒸汽会取得成功主要是因为沥青被加热过并且可以随着蒸汽的流动而流动。
其次，在SAGD作业过程中，存在一个累积SOR开始增加的点，这个点意味着后续的连续注蒸汽作业将不再具有经济性。此时，注入非凝析气可以利用储层中存在的热量以延长油的生产。这与连续注蒸汽相比可以明显减少作业费用。


这是我自己翻译的，请大家探讨

Two historical developments suggested the SAGD optimization process proposed in this paper.

First: From 1979 to 1984, BP Canada tested air injection as a follow-up process to fracture-assisted cyclic steam stimulation in the Clearwater formation at Wolf Lake2. It was expected that only 17% of the bitumen could be recovered using CSS(cyclic-steamstimulation) and that combustion as a follow-up process would increase the recovery factor. Bitumen recovery factor at the pilot increased from 15% with CSS to a cumulative of almost 30% with in-situ combustion. The equivalent SOR was reduced from approximately 6.2 to 2.3. It should be noted that air injection was successful in this application because the bitumen was first preheated and mobilized with steam.

Second: During SAGD operations, there comes a point where the cumulative SOR begins to increase indicating that it is no longer economic to continue steam injection. Injecting a non-condensable gas at this stage, to utilize the existing heat energy in place, can prolong oil production. This significantly reduces the operating costs compared to continued steam injection.

该篇论文提出两个SAGD施工优化的历史发展阶段：
首先，从1979到1984，BP加拿大公司在狼湖2(Wolf Lake2)清水层内进行了压裂辅助蒸汽驱的后续注蒸汽测试。据称，仅仅使用循环蒸汽增产(CSS)方法只能产出17%的沥青，但之后采取的火烧油层技术将会进一步提高采收率。在此次试验中沥青的采收率从使用CSS的15%提高到了使用CSS联合ISC技术的30%。相应的SOR也大约从6.2降低到2.3。应该注意到此次注蒸汽会取得成功主要是因为沥青被预热过并可随着蒸汽的流动而流动。
其次，在SAGD施工中，有个累积SOR开始增加的点，该点意味着之后的连续注蒸汽作业将不经济。在该阶段注入非凝析气，可用储层中存在的热量来延长油的生产。这与连续注蒸汽相比可大幅减少施工费用。

只有摘要

SAGD有没有最新的进展