Well completion

专利名称：Well completion

发明人：Hallundbaek, Jorgen,Hazel, Paul申请号：AU2015255258申请日：20151112公开号：AU2015255258A1公开日：20151203

摘要：#$%^&*AU2015255258A120151203.pdf##### WELL COMPLETION ABSTRACTThere is disclosed a completion assembly (100) for running into a borehole (6) in aformation (7) through a well head or blowout preventer (51). The completion assembly(100) comprising: a casing string (104) and a pipe (102). The casing string (104) has a firstend (105). The pipe (102) has a first end (103) and a second end (112) and extendsthrough the well head or the blowout preventer and is releasably connected at the firstend with the casing string, thereby holding the casing string when running the casingstring into the borehole. The casing string (104) comprises a plurality of tubular sections(101), at least two sections being annular barrier sections (110) each comprising at leastone annular barrier (3). The annular barriers are arranged at a predetermined mutualdistance and each annular barrier comprises an expandable sleeve (116) surrounding atubular part (4, 117). The expandable sleeve is connected with the tubular part, and thetubular part forms part of the casing string and has an opening (118) for entry ofpressurised fluid for expanding the sleeve. The casing string (104) further comprises asecond end which is closed. The completion assembly (100) further comprises a pressurecreating device (119) fluidly connected with the second end (112) of the pipe. Thepressure creating device generates a fluid pressure within the pipe and within the casing

string which is substantially greater than a formation fluid pressure for expanding theexpandable sleeve of the at least two annular barrier sections. One of the tubularsections is a valve section (120) having valves (121) or an inflow control section (120).

申请人：Welltec A/S

代理人：Spruson & Ferguson

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