Performance test device for horizontal well rotary jet

Abstract

The invention discloses a performance testing device for a horizontal well rotary ejector. The performance testing device is designed for testing various technical parameters of the rotary ejector. The performance testing device is composed of an outer testing cavity, an inner testing cavity and an inflow loop; the outer testing cavity is formed by connecting a flanged joint, a working barrel with a measuring instrument, a flange set and a water control connector; the inner testing cavity is formed by connecting a threaded barrel connected with the flanged joint, a control cylinder, a centralizer and a testing cylinder body; the inflow loop is formed by connecting a water control valve, a water tank, a lift pump and a water injection connector with a measuring instrument. In the testing process, water flow enters a rotary ejector rotary speed controller, and the flow and pressure of injected water can be read through the measuring instruments in real time; the rotary ejector rotary speed controller drives a rotary spray head to rotate, and the pressure and rotary speed of the rotary spray head are displayed on the measuring instrument on the working barrel in real time. The performance testing device can accurately test the situation that the rotary speed of the rotary ejector changes along with changes in water discharge capacity by changing water inflow discharge capacity, test the impact force of jet flow on a casing wall and pressure bearing capacity of the ejector, and conduct quantitative testing on the performance of the rotary ejector.

Description

technical field [0001] The invention relates to a performance test device for a horizontal well rotary jet, belonging to the technical field of oilfield horizontal well exploitation. Background technique [0002] Horizontal wells have been used in oilfield production for many years as an important means to increase single well production and change development methods. With the prolongation of the production time of horizontal wells, the phenomenon of formation sand and wellbore scaling is becoming more and more serious. The wellbore structure is more specific. Formation sand and scale are more likely to enter the wellbore, forming a sand bed at the bottom of the wellbore, and even blocking the wellbore. Horizontal well rotary jet sand washing is a cutting-edge well washing technology developed in recent years, which can effectively solve the above problems and greatly improve the efficiency of sand washing and well washing. However, at present, domestic sand flushing opera...

AI Technical Summary

Problems solved by technology

However, at present, domestic sand flushing operations are mainly carried out in vertical wells, and are rarely used in horizontal wells. Various hydraulic parameters are often determined based on sand flushing experience in vertical wells. Parameters cannot be tested

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