On-line monitoring and diagnosis system and method for hydraulic valve performance of underwater Christmas tree

Abstract

The invention discloses an online monitoring and diagnosis system for hydraulic valve performance of an underwater oil tree, which includes a data collection part and a data processing part; the data collection part collects underwater electronic modules and / or hydraulic supply modules and / or production control respectively The hydraulic data in the system is transmitted to the data processing part; the data processing part stores and processes the hydraulic data, compares and analyzes the standard hydraulic data stored in advance, and outputs detection results and diagnostic information. The invention also discloses a monitoring and diagnosis method corresponding to the system. The present invention collects and analyzes data online in real time, greatly improves production efficiency, is not affected by bad weather and sea conditions, and eliminates the safety risks of personnel and equipment during construction operations in the prior art. This system is applied to various hydraulic valves underwater In monitoring and diagnosis, it is no longer necessary to dispatch large-scale engineering equipment and a large number of operators during operation, which can greatly save personnel and equipment costs.

Description

technical field [0001] The invention belongs to the technical field of underwater oil and gas development, and in particular relates to a system and method for online real-time monitoring and diagnosis of hydraulic valve performance of an underwater Christmas tree based on computer data collection and analysis. Background technique [0002] The subsea tree is one of the key equipment for the development of deep water oil and gas fields. There are more than 10 hydraulic control valves installed on each subsea tree. The reliability of the valves directly affects the safe operation of deep water oil and gas fields. Therefore, in daily production operations, it is necessary to focus on whether the valves of the Christmas tree are closed and opened normally, and whether there is any hydraulic leakage. The current common practice is to use engineering ships to carry underwater robots to inspect all parts of the Christmas tree, and open and close the valves one by one to confirm wh...

AI Technical Summary

Problems solved by technology

The advantage of this method is that the inspection is comprehensive and in place, but the disadvantages are also particularly prominent: (1) It takes a long time for one operation, the efficiency is low, and it cannot detect the performance of the Christmas tree valve in real time; (2) The operation of engineering ships and underwater robots is easy. Affected by bad weather and sea conditions, the detection work is affected, and even the operation is suspended; (3) There are safety risks for personnel and equipment in offshore construction operations; (4) Large-scale engineering equipment and a large number of operators are required for offshore operations, and the operating costs are high

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