Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations

A manifold assembly to enhance fracturing fluid delivery to a subsurface formation to enhance hydrocarbon production from the subsurface formation, the manifold assembly comprising:

• a manifold section comprising a manifold passage having a manifold cross-section and a manifold axis extending longitudinally along a length of the manifold section, the manifold axis being substantially centrally located within the manifold cross-section;
• and
• a manifold coupling connected to the manifold section, the manifold coupling comprising:
• a manifold coupling passage having a coupling passage cross-section defining one or more of a coupling passage shape or a coupling passage size substantially in common with one or more of a manifold passage shape or a manifold passage size of the manifold cross-section;
• a manifold coupling axis parallel to the manifold axis;
• a first inlet passage positioned to provide fluid flow between a first fracturing fluid output of a first hydraulic fracturing pump and the manifold passage, the first inlet passage having a first inlet passage cross-section at least partially defining a first inlet axis extending transverse relative to the manifold axis;
• and
• a second inlet passage positioned opposite the first inlet passage to provide fluid flow between a second fracturing fluid output of a second hydraulic fracturing pump and the manifold passage, the second inlet passage having a second inlet passage cross-section at least partially defining a second inlet axis extending transverse relative to the manifold axis and not being co-linear with the first inlet axis.