Modular system and manifolds for introducing fluids into a well
An illustrative modular manifold disclosed herein includes, among other things, a low-pressure manifold comprising a frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from the low-pressure manifold via the frac fluid outlet valve to a suction side of a frac pump, and a high-pressure manifold comprising at least one frac fluid inlet valve, wherein the high-pressure manifold is adapted to receive, via the frac fluid inlet valve, a fracturing fluid discharged from the frac pump. In this example, the modular manifold also includes a support structure for mechanically supporting the low- and high-pressure manifolds and a plurality of height-adjustable support legs operatively coupled to the support structure.
1. A system, comprising:
a frac fluid inlet manifold;
a first modular manifold, comprising:
a first low-pressure manifold comprising a first frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from said first low-pressure manifold via said first frac fluid outlet valve to a suction side of a first frac pump that is in fluid communication with said first modular manifold; and
a first high-pressure manifold comprising a first frac fluid inlet valve, wherein said first high-pressure manifold is adapted to receive, via said first frac fluid inlet valve, a fracturing fluid discharged from said first frac pump;
a second modular manifold operatively coupled to said first modular manifold, comprising:
a second low-pressure manifold comprising a second frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from said second low-pressure manifold via said second frac fluid outlet valve to a suction side of a second frac pump that is in fluid communication with said second modular manifold; and
a second high-pressure manifold comprising a second frac fluid inlet valve, wherein said second high-pressure manifold is adapted to receive, via said second frac fluid inlet valve, a fracturing fluid discharged from said second frac pump;
a first dedicated low-pressure flow line coupled between the frac fluid inlet manifold and the first low-pressure manifold; and
a second dedicated low-pressure flow line coupled between the frac fluid inlet manifold and the second low-pressure manifold.
2. The system of claim 1 , wherein each of said first and second modular manifolds further comprises a plurality of height-adjustable support legs.
3. The system of claim 1 , wherein said first low-pressure manifold comprises a first piping loop, said first frac fluid outlet valve is connected to said first piping loop, said second low-pressure manifold comprises a second piping loop, said second frac fluid outlet valve is connected to said second piping loop.
4. The system of claim 3 , wherein said first low-pressure manifold comprises a third frac fluid outlet valve connected to said first piping loop, said fracturing fluid is adapted to be supplied from said first low-pressure manifold via said third frac fluid outlet valve to a suction side of a third frac pump, said first frac fluid outlet valve is connected to a first side of said first piping loop, and said third frac fluid outlet valve is connected to a second side of said first piping loop opposite said first side.
5. The system of claim 3 , wherein said first piping loop and said second piping loop each comprises a closed piping loop.
6. The system of claim 5 , wherein said closed piping loop has a ring-like configuration.
7. The system of claim 5 , wherein said closed piping loop provides a continuous flow pathway around said closed piping loop.
8. The system of claim 1 , further comprising a first connecting manifold spacing spool operatively coupled to said first and second modular manifolds.
9. The system of claim 1 , wherein said first low-pressure manifold is positioned vertically above said first high-pressure manifold.
10. The system of claim 9 , wherein said second low-pressure manifold is positioned vertically above said second high-pressure manifold.
11. The system of claim 1 , wherein said first low-pressure manifold comprises first and second flanges positioned on opposite ends of said first low-pressure manifold, and wherein said first low-pressure manifold is adapted to receive low-pressure frac fluid via either said first or said second flanges.
12. The system of claim 1 , further comprising:
a third modular manifold operatively coupled to said second modular manifold, comprising:
a third low-pressure manifold comprising a third frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from said third low-pressure manifold via said third frac fluid outlet valve to a suction side of a third frac pump that is in fluid communication with said third modular manifold; and
a third high-pressure manifold comprising a third frac fluid inlet valve, wherein said third high-pressure manifold is adapted to receive, via said third frac fluid inlet valve, a fracturing fluid discharged from said third frac pump;
a third dedicated low-pressure flow line coupled between the frac fluid inlet manifold and the third low-pressure manifold;
a first connecting manifold spacing spool that is operatively coupled to said first and second modular manifolds, said first connecting manifold spacing spool having a first axial length; and
a second connecting manifold spacing spool that is operatively coupled to said second and third modular manifolds, said second connecting manifold spacing spool having a second axial length that is different than said first axial length.
13. The system of claim 12 , wherein each of said first, second and third modular manifolds further comprises a plurality of height-adjustable support legs.