Method for evaluating performance of multistage hydraulic jetting fracturing pipe column

A fracturing string and hydraulic jetting technology, which is applied in earth-moving drilling, wellbore/well components, and production fluids, etc., can solve the problems of no hydraulic jet fracturing string performance evaluation method, large cost loss, waste of resources, etc. , to achieve the effect of significant application effect and cost reduction
CN105672972AActive Publication Date: 2016-06-15BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2016-06-15

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Abstract

The invention relates to a method for evaluating performance of a multistage hydraulic jetting fracturing pipe column. A stress intensity safety factor mechanical analysis method is adopted mainly. Before jetting fracturing construction, combination, load, stress and deformation analysis on the multistage hydraulic jetting fracturing pipe column under static and dynamic working conditions is performed according to well completion production technical requirement specifications, mechanical property of the multistage hydraulic jetting fracturing pipe column under each working condition is accurately evaluated, and thus suggestions on parameters suitable for jetting fracturing pumping of each layer section are put forward, so as to achieve the purpose of evaluating pipe column safety in one time and guaranteeing construction safety. The method is suitable for evaluation on performance merits of the multistage hydraulic jetting fracturing fixed (or dragged) pipe columns of vertical wells and horizontal well, optimization of pipe column combination and oil testing fracturing construction design parameters can be guided, true and effective reference data is provided for underground pipe column performance detection, so that the pipe column stress safety factor is improved, and pipe column accidents are reduced.
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Description

technical field

[0001] The invention relates to a method for evaluating the performance of a multi-stage hydraulic jet fracturing string. Background technique

[0002] Low-permeability oil and gas wells use multi-stage hydraulic jet fracturing strings for integrated operations of reservoir stimulation, oil testing, and well completion. The risk of pipe string damage under working conditions such as , perforating, oil testing, reservoir stimulation, etc., is prone to downhole accidents, resulting in construction stop or operation failure.

[0003] After a comprehensive investigation of domestic and foreign research literature and data on the mechanics of pipe strings and packer pipe strings, it was found that many scholars at home and abroad have done a lot of work on the safety analysis of conventional energy-focused perforating and fracturing pipe strings in vertical and horizontal wells, and achieved great results. Some insights and conclusions. However, there are few st...

Claims

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