Fluid flow control systems and methods

A fluid flow control assembly, comprising:

• a first pipe-in-pipe assembly comprising an inner tubular member disposed in an outer tubular member, wherein the inner tubular member comprises an inner bore and an annulus is formed between the inner tubular member and the outer tubular member;
• an annulus conduit coupled to a radial port of the first pipe-in-pipe assembly, wherein fluid communication is provided between the annulus conduit and the annulus of the first pipe-in-pipe assembly while fluid communication is restricted between the annulus conduit and the inner bore of the inner tubular member;
• a terminating bulkhead assembly coupled to the first pipe-in-pipe assembly, wherein fluid communication is provided between a bore of the bulkhead assembly and the inner bore of the inner tubular member while fluid communication is restricted between the bore of the bulkhead assembly and the annulus of the first pipe-in pipe assembly;
• a crossover conduit coupled to the annulus conduit, wherein the crossover conduit is in fluid communication with the inner bore of the inner tubular member, and the wherein the crossover conduit comprises a first end coupled to a port of the terminating bulkhead and a second end that is spaced from the terminating bulkhead and coupled to a port of the annulus conduit;
• and
• a crossover valve coupled to the crossover conduit, wherein the crossover valve is configured to provide selective fluid communication between the annulus conduit and the inner bore of the inner tubular member.

A fluid flow control assembly, comprising:

• an inner tubular member comprising an inner bore;
• and
• a ball valve coupled to the inner tubular member, wherein the ball valve comprises:
• a housing coupled to the inner tubular member;
• a ball rotatably disposed in the housing and comprising an outer surface in sealing engagement with an inner surface of the housing, a bore extending through the ball, and a port that extends at an angle from the bore;
• wherein the ball valve comprises a first position providing fluid communication through the inner bore across the ball valve while restricting fluid communication between the inner bore and the surrounding environment, and a second position providing fluid communication both through the inner bore across the ball valve and between the inner bore and the surrounding environment;
• an actuation sleeve slidably disposed about the inner tubular member;
• wherein the outer housing comprises a rotation sleeve coupled to the ball and the actuation sleeve;
• wherein, in response to relative axial movement between the actuation sleeve and the rotation sleeve, the rotation sleeve is configured to rotate the ball and actuate the ball valve between the first position and the second position;
• the rotation sleeve comprises an angled slot;
• and
• the actuation sleeve comprises a guide pin received in the angled slot of the rotation sleeve, wherein, in response to relative axial movement between the actuation sleeve and the rotation sleeve, the guide pin is configured to exert a torque on the rotation sleeve to rotate the rotation sleeve.