System and method for providing multiple wells from a single wellbore

A system for completing at least two wellbores which have been drilled from a common wellbore, each of said at least two wells defined by a wellbore which is in communication with said common wellbore, said system comprising:

• anchor means operable to be secured in one of said two wellbores;
• a guide member secured to said anchor means and including a guide surface disposed at the intersection of the other of said two wellbores with said common wellbore for guiding a tubing string and the like into said other wellbore, said guide member including passage means therein for communicating fluid between said common wellbore and said one wellbore;
• packer means insertable in said common wellbore at a point between the earth's surface and said point of intersection of said other wellbore with said common wellbore;
• conduit means extending between said guide member to said packer means for communicating fluid between said common wellbore and said guide member;
• a passage in said packer means for receiving a tubing string to be insertable through said packer means and to be guided into said other wellbore by said guide member;
• a member insertable into said common wellbore and connected to said tubing string for inserting said tubing string into said other wellbore;
• and
• means attached to said member for connected said member to said packer means.

A method for completing at least two wells which are formed by two wellbores extending from a common wellbore, said method comprising the steps of:

• drilling said common wellbore;
• drilling said wellbore for one of said at least two wells extending from said common wellbore;
• drilling the other wellbore forming the other of said at least two wells;
• inserting guide means into said common wellbore and positioning said guide means at the intersection of said wellbores of said at least two wells, said guide means including means for guiding a tubing string into said other wellbore upon insertion of said tubing string through said common wellbore to said guide means, and said guide means including passage means for communicating fluid between said common wellbore and said one wellbore;
• inserting said tubing string into said other wellbore by guiding said tubing string into said other wellbore with said guide means;
• securing said tubing string in said common wellbore in a predetermined position;
• and
• conducting fluids between said two wellbores and said common wellbore.

A system for completing at least two wellbores which have been drilled from a common wellbore extending from the earth's surface, each of said two wellbores having a wellbore portion which is in communication with said common wellbore, said system comprising:

• anchor means adapted to be secured in one of said two wellbores;
• guide means secured to said anchor means and including a guide surface disposed at the intersection of the other of said two wellbores and said common wellbore for guiding a tubing string and the like into said other wellbore;
• packer means insertable in said common wellbore at a point between the earth's surface and said guide means;
• conduit means extending between said guide means and said packer means for conducting fluid between said one wellbore and said packer means;
• a tubing string extending from said packer means and guided into said other wellbore by said guide means;
• a member insertable into said common wellbore and connected to said tubing string for inserting said tubing string into said other wellbore, said member including first passage means in communication with said tubing string and second passage means in communication with said conduit means, each of said passage means in said member include means for engagement with a guide head insertable in said common wellbore for selectively accepting said guide head for movement through said member and into one of said wellbores.

A system for completing at least two wellbores which have been drilled from a common wellbore extending from the earth's surface, each of said two wellbores having a wellbore portion which is in communication with said common wellbore, said system comprising:

• anchor means adapted to be secured in one of said two wellbores;
• guide means secured to said anchor means and including a guide surface disposed at the intersection of the other of said two wellbores and said common wellbore for guiding a tubing string and the link into said other wellbore;
• packer means insertable in said common wellbore at a point between the earth's surface and said guide means;
• conduit means extending between said guide means and said packer means for conducting fluid between said one wellbore and said packer means;
• a tubing string extending from said packer means and guided into said other wellbore by said guide means;
• a member insertable into said common wellbore and connected to said tubing string for insertable said tubing string into said other wellbore, said member including first passage means in communication with said tubing string and second passage means in communication with said conduit means;
• and
• respective tubing means coupled to said member for separately conducting fluids through said first and second passage means and said common wellbore.

A method for completing at least two wells which are formed by two wellbores extending from a common wellbore, said method comprising the steps of:

• drilling said common wellbore;
• drilling one wellbore for one of said at least two wells extending from said common wellbore;
• placing anchor means in said one wellbore at a point beyond the intersection of one of said wells with said common wellbore;
• inserting a drilling guide member in said common wellbore and secured to said anchor means for guiding drilling means to form the other wellbore of said at least two wells;
• drilling said other wellbore;
• removing said drilling guide member;
• inserting guide means into said common wellbore and securing said guide means to said anchor means in a position for guiding a tubing string into said other wellbore, said guide means including passage means for conducting fluid between said common wellbore and said one wellbore;
• inserting a tubing string into said other wellbore by guiding said tubing string into said other wellbore with said guide means;
• securing said tubing string in said common wellbore in a predetermined position;
• and
• conducting fluids between said two wellbores and said common wellbore.

A method for completing at least two wells which are formed by wellbores extending from a common wellbore, said method comprising the steps of:

• drilling said common wellbore;
• drilling one wellbore for one of said at least two wells extending from said common wellbore;
• drilling the other wellbore forming the other of said at least two wells;
• inserting a guide member into said common wellbore and positioning said guide member near the intersection of said wellbores of said at least two wells;
• inserting packer means into said common wellbore and positioning said packer means at a point between the earth's surface and said intersection;
• providing conduit means extending from said guide member at least to said packer means for conducting fluids between said one wellbore and said common wellbore;
• inserting a tubing string through said packer means and into said other wellbore and guiding said tubing string into said other wellbore with said guide member;
• and
• securing said tubing string in a predetermined position in relation to said packer means.

A method for completing at least two wells which are formed by wellbores extending from a common wellbore, said method comprising the steps of:

• drilling said common wellbore;
• drilling one wellbore for one of said at least two wells extending from said common wellbore;
• drilling the other wellbore forming the other of said at least two wells;
• inserting a guide member into said common wellbore and positioning said guide member near the intersection of said wellbores of said at least two wells in a position for guiding a tubing string into said other wellbore;
• inserting packer means into said common wellbore an positioning said packer means at a point between the earth's surface and said intersection;
• providing conduit means extending from said guide member at least to said packer means for conducting fluids between said one wellbore and said common wellbore;
• inserting a tubing string through said packer means and into said other wellbore and guiding said tubing string into said other wellbore with said guide member;
• and
• securing said tubing string in a predetermined position in relation to said packer means by providing a tubing means guide member connected to said tubing string for guiding tubing means selectively into one of said conduit means and said tubing string and connecting said tubing means guide member to said packer means upon installation of said tubing string into said other wellbore.