99 6,752,212 which disclose dump valves for use with tubing; U.S. Pat. Tie Rod Ends, Adjusting Sleeve: Wheel Bearings and Seals: Tranmission Parts: ... Convertible Top Parts: Convertible Top Pump Motors and Hoses: Convertible Top … These pumps are suited for extremely abrasive or high-temperature wells. Sucker rods which reciprocate within the tubing string of the well are connected to the plunger such that fluids are brought to the surface. ... Piston Pin Hole and Connecting Rod Wear. 4,273,520 which discloses a deep well pump incorporating a mechanical valve system; U.S. Pat. permit axial movement of the pipe. The top hold down rod pump (where the pump is below the seating nipple) is more commonly used as it is resistant to sand sticking and is typically easier to remove from the well when removal is required. The design of the system promotes the efficiency of maintenance in the event that the hydraulic drain has been activated in that the system does not require that the production tubing string be withdrawn from the well to re-set the hydraulic drain. It is situated so the pump hangs below both the tubing perforations and the seating nipple. If the push rod slides out, you can pack it with some heavy grease to hold it in place while you install the pump. • B - Stationary barrel, bottom anchor pump. In most cases, the causes of a thrown rod are limited to a few major failures. The traveling valve 26 is secured within the plunger 24 whereas the standing valve 28 is secured to the lower end of the barrel 22. As such, in the event that the hydrostatic pressure within the production tubing 14 must be relieved, an increase in hydraulic pressure within the production tubing 14 will cause the barrel drain 52 to open. 2A is a cross-sectional view of a top hold-down rod pump having a hydraulic drain in accordance with the invention; FIG. In yet another embodiment, the barrel drain includes a precision slot having a specific thickness that will rupture at a threshold pressure. You do need to be very careful not to scratch the piston rod, and DO NOT use a pliers/vise grips on the piston rod. Knox offers Harbison Fischer, Harbison-Fischer, Weatherford Artificial lifts Systems,Artificial lift, down hole pump, downhole pump, subsurface pumps, Sub-surface Pump, Rod pump, tubing pump, RWBC, tubing pump, Oil Field Supplies. … Easy to use parts catalog. If sand is an issue, … Shop our selection of drop in flush mounted rod holders. Over time, as various designs of pump have evolved, two hold down positions of rod pumps have been utilized; namely, the top hold down rod pump and the bottom hold down rod pump both of which are sealed within a seating nipple within the production tubing. The package comes with 12 clamps and... For All Cars and Trucks 60 In a further embodiment, as shown in FIG. This is a down hole pump that is moving mineral oil. 1) The tubing drain is a safety feature for preventing over pressuring of all equipment downstream of the pump discharge; 2) The activation of the tubing drain can be invoked intentionally to assist in releasing a rod pump from the hold down seating nipple by removing both the fluid within the production tubing and its hydrostatic head; or to avoid pulling a wet tubing string if the pump will not release from the seating nipple; 3) A tubing drain can also be activated in an effort to kill the surface pressure on a wellhead by pumping kill fluid down the tubing and entering the wellbore from the bottom of the production string via the tubing drain and cycling to the top. This pump has the hold-down at the top of the barrel, so the entire barrel and standing valve of the pump extend below the pump seating nipple. These pumps are recommended for depths of 8,000 ft [2,438.4 m] or greater when there is little chance of sand accumulation. a barrel having a top section for sealing engagement with a seating nipple within the production tubing and a bottom section operatively retaining positive displacement pumping equipment, wherein the bottom section extends beneath the seating nipple within the production tubing; a barrel drain operatively connected to the barrel between the top section and the bottom section for releasing hydrostatic fluid pressure from the production tubing to the exterior of the barrel beneath the seating nipple above a threshold pressure; and. See our Ordering Information page for information about ordering … A rod pump is removed from the tubing when the sucker rod string is pulled. Notice the standing valves turbulence when you have your pound much lower in the stroke. This pump has the hold-down at the top of the barrel, so the entire barrel and standing valve of the pump extend below the pump seating nipple. Such problems was overcome by introducing the Top Hold-Down pump instead of bottom hold down… RHA Pumps are heavy wall barrel top hold-down type insert pumps.
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