Slidable access control device for subterranean lateral well drilling and completion

摘要: The present invention provides a subterranean structure for controlling tool access to lateral wellbore extending from wellbore. comprises bushing that is located in the and proximate an opening has window therethrough allowing by well through opening. further slidable control device coaxially coupled thereto. Also included shifter engagable with cause slide between open position wherein allowed pass into closed prevented passing also method of preferred steps of: 1)locating wellbore, having opening, thereto; 2)engaging respect bushing; 3) sliding mad