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Acidification data monitoring method

A technology of data and calculation methods, which is applied in the directions of surveying, earthwork drilling, mining fluids, etc., can solve the problems of initial test skin coefficient errors and complex calculations, and achieve simple results

Inactive Publication Date: 2006-10-18
CHINA OILFIELD SERVICES
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This method is more complicated to calculate, and there are often large errors in the

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Abstract

The acidification data monitoring method includes the following steps: 1. establishing relation graph plate of (Pe-Pwf)/qN in different skin factor and Delta-the(sup) with the simulating data before acidification treatment; 2.measuring the well head pump pressure and the pouring amount and displacement of pump during acidification, calculating (Pe-Pwf)/qN and Delta-the(sup), and making (Pe-Pwf)/qN vs Delta-the(sup) graph; and 3. comparing the graph and the relation graph plate and monitoring the change of skin factor to monitor the acidification process. The present invention also discloses one kind of skin factor calculating method and acidification process evaluating method. The present invention is easy to realize, has the effect of unstable flow, and may be used in monitoring various kinds of acidification process and evaluating the results.

Description

technical field [0001] The invention relates to a method for monitoring acidizing data, which belongs to the technical field of oil field production. Background technique [0002] Acidizing technology is one of the important technologies for increasing production in offshore oilfields. Acidizing real-time monitoring plays a very important role in acidizing construction and is an effective means to optimize acidizing construction operations. The amount of acid solution can be used to evaluate the acidification effect more accurately. In addition, in terms of safe operation, monitoring technology can monitor the safety of construction (such as overpressure, etc.). [0003] The on-site monitoring technology of acidification construction is mainly to monitor the changes of pressure, displacement, liquid absorption index, etc. over time, the degree of conformity between construction parameters and design, and to record relevant parameters during the drainage process. Monitoring...

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Application Information

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IPC IPC(8): E21B43/27E21B47/00
Inventor 边守臣张海孙万山宫洪亮
Owner CHINA OILFIELD SERVICES
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