Well completion production tubular column structure and method for controlling downhole seismic wave pressure

Abstract

The invention relates to a well completion production tubular column structure and method for controlling the downhole seismic wave pressure. The well completion production tubular column structure ischaracterized by comprising a seismic source well tubular column and a receiving well tubular column, the seismic source well tubular column comprises a first oil well casing, a first production oilpipe, a first downhole safety valve, a first production packer, a first Y-shaped connector, a perforated pipe, a centralizer, a hydraulic control sliding sleeve, a blind pipe plug, a first check valve, a first electric submersible pump, a first screen pipe, a first perforation hole, a hydraulic controllable seismic source device and a first hydraulic control pipeline, and the receiving well tubular column comprises a second oil well casing, a second production oil pipe, a second downhole safety valve, a second production packer, a second Y-shaped connector, a second check valve, a second electric submersible pump, a second screen pipe, a second perforation hole, a second hydraulic control pipeline and an optical fiber. According to the well completion production tubular column structure and the method, by innovating the design of the tubular column structure, on the premise that a workboat or any workover equipment are not needed, controllable vibration signals are transmitted and received, and in addition, the tubular column structure and the method have the characteristics of being flexible and maneuverable.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a well completion and production string structure and method thereof controlled by downhole seismic wave pressure. Background technique [0002] Vertical Seismic Profile (VSP for short) is a seismic wave observation method, which corresponds to the seismic profile usually observed on the ground. The application of VSP technology in the field of oil and gas wells can obtain the acoustic data of formations and reservoirs. Due to the differences in the transmission characteristics of acoustic waves in different formations and fluid media, it can help geologists obtain formation characteristics, analyze reservoir production performance, and evaluate reservoir production conditions. [0003] The general method of vertical seismic section is to excite seismic waves near the surface or the sea surface, and use logging equipment to secure the geophone in the downhole oil...

AI Technical Summary

Problems solved by technology

Due to the use of large-scale water equipment, the operation is complex, costly and risky, which often limits the operation plan of VSP and cannot respond to the needs of geological reservoirs for obtaining dynamic data of oil and gas wells in a timely manner.

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