Well cementing and fracturing process and well cementing and fracturing operating tubular column

Abstract

The invention relates to a well cementing and fracturing process and a well cementing and fracturing operating tubular column, and belongs to the technical field of underground operating tools for oiland gas wells. According to the process, the tubular column only needs to be tripped in once, so that well cementing, drilling-out and staged fracturing operations can be performed respectively; andby using the well cementing and fracturing process and the well cementing and fracturing operating tubular column, the problems of a long time, a high labor cost and high risk which are caused as thetubular column needs to be tripped in twice in existing well cementing and fracturing operations are solved. In comparison with the prior art, by using the process, the working procedures of a well completion operation are reduced; the labor cost is saved; the operating time is saved; the development period is shortened; the quantity of tools for the well completion operation is reduced; an appointed target is achieved with less tools; the costs of the tools are saved; the tripping-in times of the tubular column are reduced; and the operating risk is decreased.

Description

technical field [0001] The invention relates to a cementing and fracturing process and a cementing and fracturing operation string, belonging to the technical field of downhole operation tools for oil and gas wells. Background technique [0002] The development of oil and gas wells in my country mainly goes through exploration-drilling-logging-logging-cementing-completion-perforation-oil production (fracturing)-transportation and other processes. However, each process will consume a long time in the process of oil and gas well exploitation, and each process requires a large number of operating tools, and there is a risk of downhole safety accidents during the operation process, thereby increasing the cost of crude oil production and increasing oilfield management. difficulty. The integration of cementing and fracturing work is one of the measures to reduce the operating procedures before crude oil exploitation. The cementing and fracturing are completed with a set of pipe s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to: provide a pipe string that only needs to be run in one trip, and the cementing, drilling plug and segmental fracturing operations can be performed respectively; The cementing and fracturing process and the cementing and fracturing operation string caused by the long time, high labor cost and high risk caused by the completion of the string

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