Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a pump, a pump manifold, and a flexible hose coupled between the pump and the pump manifold. The flexible hose includes a first end coupled to the pump and a second end coupled to the pump manifold. The first end of the flexible hose includes a first end fitting coupled to the pump, and the first end fitting is oriented at an angle relative to a horizontal plane. The second end of the flexible hose includes a second end fitting coupled to the pump manifold, and the second end fitting is oriented vertically and perpendicularly to the horizontal plane.

A liquid pump with adjustable length and a feed tank are provided. The liquid pump includes a tube component, a pump body, a sealing ring, and a fixing piece. The tube component includes a first tube and a second tube, the first tube and the second tube are sleeved with each other, the first tube is slidable relative to the second tube. The pump body is mounted in a first end of the first tube away from the second tube. The sealing ring is hermetically connected between the first tube and the second tube. The fixing piece is sleeved on the first tube and the second tube. The fixing piece is configured to fix the first tube and the second tube. A length of the tube component is flexibly adjusted to match tanks of different depths, while taking into account sealing and stability.

Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a platform, a pump manifold mounted to the platform, and a pair of rails mounted to the platform. The fluid injection system includes a trolley disposed between the pair of rails and above the pump manifold. The trolley is movable along the pair of rails. The fluid injection system includes an articulation arm device mounted to the trolley. The articulation arm device includes one or more pivot joints coupled between two or more arms, and a connection device coupled to an end arm of the two or more arms.

Provided herein is a slurry tank having an articulated boom providing a fluid pathway from an end of the boom to the slurry tank, the boom being articulated such that it is selectably positionable in a first and a second position. When the boom is in the first position, the end of the boom is located outside of the slurry tank and, when the boom is in the second position, the end of the boom is located inside of the slurry tank.

Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a platform, a pump manifold mounted to the platform, and a pair of rails mounted to the platform. The fluid injection system includes a trolley disposed between the pair of rails and above the pump manifold. The trolley is movable along the pair of rails. The fluid injection system includes an articulation arm device mounted to the trolley. The articulation arm device includes one or more pivot joints coupled between two or more arms, and a connection device coupled to an end arm of the two or more arms.