An integrated process of micro-tube jarring, force-increasing drawing, and sleeve grinding and milling in small tube diameters

Abstract

The invention provides an integrated process of micro-tube jarring, force-increasing drawing, and sleeve grinding and milling in a small tube diameter, and mainly relates to the technical field of the oil and natural gas industry. An integrated process of microtube jarring, force-increasing drawing, and sleeve milling and milling in a small pipe diameter includes radial well capillary, downhole hydraulic booster, salvage equipment and sleeve milling equipment, wherein the radial well capillary includes a roller, An injection head, an operation room, a power pack and a well control device are provided. The downhole hydraulic booster includes a hydraulic anchoring device, a hydraulic booster cylinder and a connection buckle. The beneficial effects of the invention are as follows: the invention can carry out the oil pipe operation without taking out the existing production equipment in the old well; The ground pressure can control the lifting force of the downhole booster, which can be easily controlled in the operating room. The downhole booster greatly improves the lifting force required for salvage, and has strong applicability, and can be matched with a variety of downhole tools.

Description

technical field [0001] The invention mainly relates to the technical field of the oil and natural gas industry, in particular to an integrated process of small-diameter inner micro-tube shock, force-increasing drawing, sleeve grinding and milling. Background technique [0002] In oilfield development, heavy-load jam release is one of the common procedures in workover operations. Due to the limitation of the surface environment, workover equipment, and the tensile load of the operation string, the handling of the well falling objects and the overloading of the jam removal operation have always been low, and even the accident tends to be complicated. Wells that require heavy loads to unblock need to be overhauled. However, the approval procedures for overhaul operations are complicated, the construction period is long, the cost is high, and the site requirements are strict, which cannot meet the requirements of production efficiency. SUMMARY OF THE INVENTION [0003] In or...

AI Technical Summary

Problems solved by technology

Due to the limitations of the surface environment, workover equipment, and the tensile load of the operating string, the handling of falling objects in the well and the overloading of the unblocking operation have caused the success rate of the unblocking operation to be relatively low, and even the accidents tend to be complicated. Wells that need to be unblocked with a large load need to be transferred to overhaul

However, the approval procedures for overhaul operations are complicated, the construction period is long, the cost is high, and the requirements for the site are strict, which cannot meet the requirements of production efficiency.

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