GAS BREAKER THE MECHANICAL TRAVELING VALVE THAT ENDS GAS LOCK PROBLEMS

GAS BREAKER THE MECHANICAL TRAVELING VALVE THAT ENDS GAS LOCK PROBLEMS

Petrovalve Gas Breaker The Petrovalve Gas Breaker eliminates gas/steam-lock problems common in many thermal and non-thermal well pumping operations. The Petrovalve Gas Breaker was developed to combat this problem. As an extension of the Petrovalve Plus, the Gas Breaker (used in the traveling valve position) mechanically opens at the end of each pump cycle if the pump is gas locked. This allows the gas to migrate out of the pump into the tubing, leaving the pump barrel filled with fluid. New oil can then enter the pump on the up stroke. The automatic opening is accomplished when the extended bottom stem on the traveling valve contacts the trip sub (modified barrel connector). High Temperature Production The Petrovalve Gas Breaker is designed for use as the traveling valve in thermal and non-thermal well pumping situations. The Petrovalve Gas Breaker is also very useful in natural gas wells producing fluids, as it facilitates the pumping of gasified fluids on a continuous basis. Deep Well Applications Deep well applications present no problem for the Petrovalve Gas Breaker. The valve is designed to accommodate rod stretch through the extended bottom shaft. This makes the system easy to install and simple to operate. Deviated and Horizontal Wells Field installations confirm that the efficiency of pumps incorporating the conventional valve system drop as the angle of the pump from vertical position increases. Efficiency o levels at angles greater than 35 are extremely low. Under such conditions, the hydrostatic weight of the fluid in the well bore between the horizontal and the vertical positions restricts the pay zone s ability to produce fluid. The Petrovalve system is designed to allow high efficiency pumping in any position. Our guided valves work as effectively horizontally as they do vertically by keeping the seating surfaces aligned at all times. Use of the Petrovalve Gas Breaker reduces valve failures and service costs.

TOP CAGE DAMPER SPRING (IF REQD.) SEAT FLOW GAS BREAKER TRAVELING VALVE ASSEMBLY SEAT PLUG BOTTOM 1.25 to 2.75 Gas Breaker (Long or Short) Installation Procedures 1. Install guide fully against the top profile in the cage (guides are reversible). 2. Install Gas Breaker plunger with flat side of hemisphere and damper spring (if reqd.) facing top guide. 3. Install seat against the profile in the bottom of cage (seats are reversible). 4. Install bottom guide against seat. 5. Tighten seat plug onto cage. Additional Notes 1. Assemble Gas Breaker units at the bench. 2. Pump valve spacing per API Recommended Practice 11AR. 3. Gas Breaker recommends API Torque Make Up Specifications. Materials Sphere/Seat 440C Stainless Steel TC Tungsten Carbide NC Nickel Carbide Ti Titanium S.L. Silicon Nitrate Ceramic Ceramic

Installation Procedure for the Petrovalve Standing Valve and Gas Breaker Traveling Valve STEP 1: A) Assemble Petrovalve standing valve per Petrovalve standing valve assembly. B) Install assembled Petrovalve standing valve complete with trip sub onto barrel. GAS BREAKER TRAVELING VALVE STEP 2: A) Assemble Gas Breaker traveling valve as shown in Gas Breaker traveling valve assembly. B) Attach Gas Breaker traveling valve onto plunger and insert fully into pump until traveling valve meets trip sub. (Leave at least 3 to 4 of rod above valve rod guide.) STEP 3: A) With Gas Breaker traveling valve against trip sub, cut valve rod 1/2 above the highest point of valve rod guide. B) Thread 5/8 of valve rod and attach supplied rod bushing. BARREL TRIP SUB PETROVALVE STANDING VALVE The Gas Breaker traveling valve automatically opens at the end of each cycle if the pump is gas locked, allowing trapped gas to escape from the pump. Maintaining a liquid filled pump is essential to achieve efficient operations. The Gas Breaker performs best when installed with a Petrovalve in the standing valve position. Stainless steel housings available upon request for standard sizes.

Petrovalve Gas Breaker Suggested Field Operating Procedures 1. Space out the pump and maintain 6 to 8 inches off tap. Start up and monitor operation during the initial 24 hours or until recovery of kill and load fluids. 2. To ensure the Petrovalve Gas Breaker becomes operational, adjust the rod string spacing until a very slight tap is felt on the polish rod at surface. 3. Pick up rod string 1/2 inch and resume pumping. At this point there should not be a tap felt at surface on the polish rod. 4. Monitor pumping to ensure that no pump tap is occurring. VALVE ROD BUSHING VALVE ROD HOLD DOWN ASSEMBLY BARREL NOTE: If a slight tap can still be felt at surface on the polish rod, raise rod string an additional 1/2 inch. We recommend a Petrovalve representative be on hand for initial customer pump assembly and installation. Petrovalve will work closely with customers pump shop and rig crews. BARREL CONNECTOR TRIP SUB STANDING VALVE STRAINER BUSHING