WIRELINE DRILLING SYSTEM

摘要

A wireline drilling system for the hydrocarbon exploration and production industry incorporating a drilling cuttings removal system which acts to remove and store cuttings displaced by a drill bit during drilling operations. The cuttings removal system may employ a screw member having a tapered lower portion and a narrow upper portion to transport drilling cuttings to a cuttings basket and distribute the cuttings therein. Embodiments of the invention include an integral tractor to progress the wireline drilling system and provide weight-on-bit, as well as assist in retrieval of the wireline drilling system if the tool should become stuck.

主权项

1. A wireline drilling system comprising a drilling assembly configured to drill a wellbore, and an integral cuttings removal system arranged to collect and store cuttings displaced by the drilling assembly for transport to the surface, the integral cuttings removal system comprising a cuttings basket to store the drilling cuttings and a rotatable screw member operable to carry drilling cuttings along at least a portion of the integral cuttings removal system, and a pump configured to circulate fluid between the drilling assembly and the rotatable screw member via one or more inlets.