Study on Mechanical Behavior of Load-Bearing Rope of 340K Snubbing Operation Device Under Wind Load

Abstract

Snubbing operation device can carry out the workover operation and completion operation of oil, gas and water wells under the working conditions of snubbing and no blowout. The load-bearing structure of the snubbing operation device plays the main role of load-bearing, which is a necessary structure to ensure the safe and efficient completion of workover operations. and completion operations. The load-bearing requirements of the 340K snubbing operation device are greater. The finite element analysis process of load-bearing involves structural nonlinearity and boundary nonlinearity; the analysis model involves a variety of structure units, which increases the difficulty of the finite element analysis of the load-bearing machine of the full-scale structure. This paper establishes a full-scale finite element analysis model of the main load-bearing structure of the 340K snubbing operation device, analyzes the mechanical properties of the main load-bearing structure under main loads such as the weight, external load, and wind load (expected wind load and unexpected wind load), and analyzes the reaction force of the main loadbearing rope under load (working state, unexpected wind state, expected wind state);The main rope of the 340K snubbing operation device is subjected to a force test under wind load, and the force on the rope is measured. The analysis found that the maximum stress of the main body of the snubbing operation device under the working load is 155MPa, and the safety factor is 1.35, which achieves the conditions for safe work; the force of the rope obtained by the test is less than the rated tension of the rope 220KN, which achieves requirements of various working conditions. Through the calculation and analysis under the load of the snubbing operation device, it provides an important basis for ensuring the safe operation of the snubbing operation device.