Flexible production tubing

A flexible, load bearing production tubing assembly for mechanically supporting a pump in a well bore, and for conveying pneumatic/hydraulic or electrical power to the pump while simultaneously conveying production fluid from a producing formation to a surface facility, comprising:

• a protective, high tensile strength tubular sheath of polymeric material;
• a flexible production tube for conveying formation fluid extending along an undulating path through said protective sheath;
• a plurality of relatively smaller diameter, flexible tubular pneumatic/hydraulic conduits disposed in spiral wrap relation about said production tube;
• a plurality of flexible, insulated electrical conductors disposed in spiral wrap relation about said production tube;
• a complementary injection body of load-bearing filler material disposed in the annulus intermediate said undulating production tube and said protective sheath, said pneumatic/hydraulic tubular conduits, electrical conductors and production tube being at least partially embedded within said injection body, said injection body shielding said conduits with respect to shear forces which would pinch or otherwise restrict flow in said conduits and yieldably restraining said conduits against movement relative to said sheath;
• and,
• a group of high tensile strength, flexible strands extending longitudinally intermediate said injection body and said protective sheath.