Digital coiled tubing injector

Abstract

The invention relates to a digital coiled tubing injection head. The digital coiled tubing injection head comprises a box body, hydraulic motors, a clamping block, a transition frame, and an adjustingmember, the two hydraulic motors are erected on one side of the box body, chain wheels are rotatably connected to the hydraulic motors, the clamping block is connected outside the chain wheels in a sleeving mode through a link chain, the transition frame is erected on one side of the top of the box body, the adjustment member is erected in the middle of the ring-shaped link chain, wherein the adjustment member comprises a threaded rod and a positioning pad, a support frame is fixedly connected into the box body, the threaded rod is connected to the support frame in a threaded mode, the positioning pad is rotatably connected to one end of the threaded rod, the end surface of the positioning pad is fixedly connected with a limiting plate, and the limiting plate abuts against the clamping block, so that the clamping block abuts against a coiled tubing; a pressure sensor is fixedly connected in the positioning pad, the pressure sensor abuts against the limiting plate, and the pressure sensor is electrically connected with a data terminal outside the box body. The digital coiled tubing injection head has the advantages that the working condition of an injection head is accurately judged and the injection head is ensured to be capable of working efficiently and stably.

Description

technical field [0001] The invention relates to the technical field of oil and gas drilling and production stimulation equipment, in particular to a digital coiled tubing injection head. Background technique [0002] Coiled tubing injection head is the core component of coiled tubing equipment, widely used in the fields of oil and gas exploration and production stimulation, and its function is to drive coiled tubing in and out of wells to perform various downhole operations. When performing coiled tubing operations, the injection head is usually hoisted by a crane. A wire rope sling is usually installed on the top of the injection head frame. During operation, the injection head is lifted to a position more than ten meters above the wellhead by the crane. The box is connected with the blowout preventer and the wellhead; the injection head clamps and moves the tubing through the clamping device, and the clamping device is also one of the most important parts on the injection ...

AI Technical Summary

Problems solved by technology

[0003] The current conventional coiled tubing injection head is hydraulically driven and controlled. The driving and control parameters of the injection head are controlled by manual adjustment, which is difficult to operate and has high requirements for operators. Once the operation is wrong, it is easy to cause operation accidents; on the other hand , when conventional coiled tubing equipment is used, it is impossible to record the number of trips and local fatigue times of each section of coiled tubing, and it is impossible to accurately judge the tension between the equipment and the injection head, and it is impossible to accurately judge the fatigue life and occurrence of a certain section of coiled tubing. Fatigue risk location, cannot accurately determine the cycle of changing the oil pipe

Images