Patent ID: 9702204
Date: 2017-07-11
CPC Classifications: E21B

Claim:
1. An apparatus for generating pressure pulses in a drilling fluid that is flowing, enhancing, and completing a well bore within a coiled tubing assembly comprising: a coiled tubing—measurement while drilling flow throttling device (CT-MWD-FTD) tool longitudinally and axially positioned within a center of a main valve assembly including a main valve, wherein said main valve assembly also comprises a main valve pressure chamber, and a main valve orifice with said main valve, such that said drilling fluid splits into both an inlet main fluid stream and a pilot fluid stream, and wherein said pilot fluid stream flows through a pilot flow upper annulus, through a pilot flow lower annulus and into a pilot flow inlet channel, via a pilot valve actuator assembly that is selected from one or more of the group consisting of: a pilot valve shaft, a rotary seal shaft, rotary seals, a seal carrier, a cam shaft, pilot cams, a pilot sleeve, a pilot valve actuator assembly housing with both pilot inlet and pilot outlet channels and a main valve with an attached spring assisted plunger wherein said pilot fluid stream then flows into a main valve fluid feed channel until it reaches said main valve pressure chamber such that said pilot fluid stream flows into said main valve fluid feed channel through a pilot flow outlet channel such that said pilot fluid stream recombines with a main fluid flow to become a main exit fluid flow such that said main exit fluid flow then passes around a coupling mechanism toward a motor housing wherein a motor in said motor housing is connected to a mechanical drive shaft, with a pilot sleeve within which pilot cams are attached to said drive shaft such that said cams are allowed to move and wherein said pilot cams are sized and oriented within said pilot sleeve in order to provide a path within said pilot sleeve that allows said pilot valve shaft to move in a bi-directional motion that either opens or seals inlet and/or outlet pilot flow channels and wherein one or more annular pressure sensors measuring a pressure of flowing fluid is located inside a sensor sub assembly with sensors that send signals to a Digital Signal Processor (DSP) that controls CT-MWD-FTD tools that generate controllable, large, measurable, rapid energy pulses.