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首页> 外文会议>International Petroleum Technology Conference >An Abnormally High Pressure Zone have been Detected to be the Culprit of Many Well Integrity Issues in Dukhan Khuff Wells
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An Abnormally High Pressure Zone have been Detected to be the Culprit of Many Well Integrity Issues in Dukhan Khuff Wells

机译：已经检测到异常高压区是杜汗Khuff Wells中许多良好诚信问题的罪魁祸首

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An abnormally high pressure formation caused the loss of a number of Dukhan Khuff Gas (DKG) wells. The Sudair formation has always been considered normally pressured throughout the Dukhan Khuff gas field area. However, this case study supports the author's hypothesis that, contrary to that belief, Sudair can be abnormally pressured. Two DKG wells A and B were the subject of this case study. These wells experienced loss of integrity due to high annuli pressures and were recently worked over. The author's abnormally high pressure zone hypothesis is based on actual real data from both of these wells. DKG wells were drilled more than thirty years ago. All 28 wells were drilled through the Sudair formation without any pressure or well control issues. However, at some point in time, most of these wells developed annulus pressure in one or more of their annuli. How did that happen? To answer this question, the author searched other operator's experiences in the area. The search pointed out that the Sudair formation is not always normally pressured; it can also be abnormally pressured. We have seen reports of Sudair high formation pressure associated with high rate salt water flow, high rate gas flow and in occasions very low rate salt water flow. While the high rate flows are detectable, it's the very low rate high pressure salt water flow that is almost impossible to detect. Another finding is that the Sudair formation pressures are neither equal nor uniform over a large area but rather different and localized. What could we have done differently thirty-five years ago? The answer is simply no thing because we did not have the knowledge and knowhow of today. However, there are lessons to be learnt, t's to be crossed and i's to be dotted.
机译：异常高的压力形成导致损失了许多Dukhan Khuff气体（DKG）孔。 Sudair组的始终被认为是整个Dukhan Khuff Gas Field地区的压力。但是，本案研究支持提交人的假设，与这种信仰相反，苏司可以异常压力。两个DKG Wells A和B是本案例研究的主题。由于高醋压力，这些井损失了诚信，最近工作。作者的异常高压区假设基于这些井两者的实际真实数据。 Dkg Wells超过三十年前钻了。所有28个井都通过Sudair形成钻孔，没有任何压力或控制问题。然而，在某个时间点，大多数这些井在一个或多个venuli中开发了环压力。那是怎么发生的？要回答这个问题，作者在其他运营商在该地区的经历中搜索。搜索指出，Sudair形成并不总是压力;它也可以异常压力。我们已经看到了与高速率盐水流量，高速率气体流动和偶尔储存水流动相关的Sudair高形成压力的报道。虽然高速流动是可检测的，但它几乎不可能检测到非常低的速率高压盐水流量。另一个发现是，在大面积内，Sudair形成压力既不等于，也不是均匀的。我们可以在三十五年前做些什么不同的？答案根本就是没有东西，因为我们今天没有知识和知识。然而，有课程待学习，T越过，我要点缀。

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