MX2010008298A - Hydraulic oil well pumping apparatus. - Google Patents

Abstract

A hydraulic oil well pumping apparatus, preferably includes a hydraulic cylinder having a rod that is movable between a upper and lower rod positions; a pumping string that extends downwardly from the rod, the string being configured to extend into an oil well for pumping oil from the well; a prime mover; a hydraulic pump that is powered by the prime mover, said pump having a compensator that regulates pump flow and pump pressure; a directional control valve that moves between open flow and closed flow positions; an accumulator in fluid communication with the pump and directional control valve; a flow line connecting the pump and the accumulator, the directional control valve being positioned in the flow line so that it can control flow between the accumulator and hydraulic cylinder; a proportioning valve; a hydraulic fluid reservoir for containing hydraulic fluid to be supplied to the hydraulic pump; a flow line that transmits hydraulic fluid from the hydraulic cylinder to the reservoir via the proportioning valve; and an electronic control system that controls movement of the rod as it moves between the upper and lower positions by controlling the control valve and the proportioning valve, wherein the control system includes an electrical signal that opens or closes the proportioning valve so that a control of rod movement is enabled when the rod changes direction at the lower position of the rod, and wherein the proportioning valve is choked to lower flow through it as the rod is descending from the upper toward the lower position.

Description

HYDRAULIC PUMPING DEVICE FOR PETROLEUM WELL PATENT REQUEST INVENTORS: FESI, Michael, A., a citizen of E.U.A., 3341 Bayou iBlack Drive, Houma, LA 70360, US; LAPEYROUSE, Willard, J., a citizen of E.U.A., of 3 | 02 E. Woodlawn Ranch Road, Houma, LA 70363, E.U.A .; and VINCENT, Kenneth, H., a citizen of E.U.A., of 22 St. Pierre Boulevard, Carenero, LA 70520, E.U.A.

ATTORNEY: PETRO HYDRAULIC LIFT SYSTEM, L.L.C. (Lousiana, E.U.A a limited liability company), 15288 Híghway 102, Jennings, LA 70546, E.U.A.

CROSS REFERENCE TO RELATED REQUESTS The Priority of the Provisional Patent Application of E.U.A. Series No. 61 / 119,160, filed on December 2, 2008, incorporated herein by reference, is claimed here. The Priority of the Provisional Patent Application of E.U.A.

Series No. 61 / 024,020, filed January 28, 2008, incorporated herein by reference, is claimed here. Provisional Patent Application of E.U.A. Series No. 60 / 764,481, filed on February 1, 2006, is incorporated herein by reference. Provisional Patent Application of E.U.A. Series No. 60 / 824,123, filed on August 31, 2006, is incorporated herein by reference. Patent Application of E.U.A. Series No. 11/670 239, filed on February 1, 2007, is incorporated herein by reference. PCT Patent Application Series No. PCT / US2007 / 061 478, filed on February 1, 2007, is incorporated herein by reference.

DECLARATION WITH RESPECT TO I VESTIGATION FEDERALLY SPONSORED DEVELOPMENT Not applicable.

REFERENCE TO A "MICROPHONE APPENDIX Not applicable.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to oil well pumps and more particularly to an improved hydraulic oil well pump that is electronically controlled by using limit or proximity switches to control a valve arrangement that eliminates shock or load in excess of the pumping chain or pumping rod during pumping ', and especially when the direction of the pumping rod is changed to the bottom of a stroke. 2. General Background of the Invention Several patents have been issued that are generally related to the pumping of oil from an oil well. Examples of these patents are contained in the following table, where the listing order does not have importance different from the chronological one.

PICTURE DO NOT. DOC. DE TITLE DATE OF EMISI DN PATENT MM-DD-AA 3,726,093 Control assembly of 03-02-1976 variable displacement pump 4,503,752 Hydraulic Pumping Unit 03-12-1985 4,631,918 Pumping system for well 12-30-1986 of oil or Similar 4,761,120 Well Pumping Unit and 08-02-1988 Control System 5,143,153 Oil Well Pump 09-01-1992 Rotating and Lifting Pump Rods 5,390,743 Installation and Method for 02-21-1995 Overseas Exploitation of Small Fields 6,017,198 Pumping system for well 01-25-200 submersible 6,394,461 Compensated Fill Box 05-28-2002 for Pressure for Reciprocating Pumping Units 2003/0085036 Well Removal from 05-08-2003 Combination and Lifting Drive Unit of Gas 6,595,280 Well Pumping System 07-22-2003 Submersible with Mechanism of Change Hydraulically Powered Improved 2005/0155758 Vibrating Apparatus of 07-21-2005 Casing / Well Cover BRIEF DESCRIPTION OF THE INVENTION The present invention provides a hydraulic oil well pumping apparatus. The system of the present invention utilizes a hydraulic cylinder having a piston or rod that is movable between upper and lower piston positions. A pumping chain or pumping rod extends down from the piston, the pumping chain or pumping rod is configured to extend into an oil well to pump oil from the well. A primary motor such as a motor is connected to a hydraulic pump of the compensation type. A directional control valve moves between open flow and closed flow positions. A hydraulic flow line connects the pump and the hydraulic cylinder. Electronic controls are provided that control the movement of the piston while moving between the upper and lower positions.

BRIEF DESCRIPTION OF THE VARIOUS VIEWS OF THE DRAWINGS For a further understanding of the nature, objects and advantages of the present invention, reference should be made to the following detailed description, read in conjunction with the following drawings, in which like reference numerals denote similar elements and in which: Figure 1 is a schematic diagram of a preferred embodiment of the apparatus of the present invention; Figure 2 is a schematic diagram of a preferred embodiment of the apparatus of the present invention; Figures 3-4 are elevational views of a preferred embodiment of the apparatus of the present invention showing an alternate construction for the pump cylinder, wherein the lines AA are coincident lines and Figure 4 is taken along the lines 4 -4 of Figure 3; Figure 5 is a fragmentary, sectional elevation view of a preferred embodiment of the apparatus of the present invention taken along lines 5-5 of Figure 3; Figure 6 is a partial elevation, sectional view of the preferred embodiment of the apparatus of the present invention and showing the alternate construction for the pump cylinder; and Figure 7 is a schematic diagram of another alternate embodiment of the apparatus of the present invention.

DETAILED DESCRIPTION OF THE INVENTION Figure 1 shows an embodiment of the apparatus of the present invention designated generally by the number 150. The well pump 150 provides a pump (eg, a hydraulic piston pump) 153 that recs hydraulic fluid through the reservoir 151 and a line / input flow filter 152. The piston pump Hydraulic 153 is driven by a primary motor (for example, machine or electric motor). A manifold assembly 154 is shown surrounded by dotted lines in Figure 1. The manifold assembly 154 includes several flow lines as shown in Figure 1, directional valve 165, proportional flow control valve 171, safety valve 175 , and valves 174, 176. A discharge flow line 155 extends from the discharge side of the pump 153 to an internal manifold triple connection tube 157. A check valve 156 may be placed in the flow line of the pump. discharge 155. Valves 161, 171, 174, 175, 176 may be part of manifold 154 (eg, internal). In the internal manifold triple connection tube 157, the flow lines 158, 159 communicate with the discharge flow line 155. The flow line 159 extends through the flow control valve 164 and the accumulator 160. The accumulator 160 has an oil containment portion 161 and a gas containment portion 162. In Figure 1, the arrow 163 schematically indicates the oil level 161 in the accumulator 160. The hydraulic cylinder 166 is connected to both the accumulator 160 as to the pump 153 through the flow line 158. The hydraulic cylinder 166 includes a cylinder body 167 and a push rod 168. The push rod 168 can be moved between upper retracted and extended lower positions. The push rod 168 provides a rod end 169 that is mounted to a coupling (e.g., coupling 20 of the modes of Figures 1-42 in Publication No. US 2007/0261841 A1, published November 15, 2007, and in Publication No. WO 2007 / 090193A2, published August 9, 2007, both incorporated herein by reference), which connects the push rod 168 to a well rope such as the pump rope 21 (for example, drive rods), shown in Figures 1-42 in Publication No. US 2007/0261841 A1, published on November 5, 2007, and in Publication No. WO 2007 / 090193A2, published on August 9, 2007. The flow line 170 is extends from the internal multiple manifold connection tube 177 through a proportional flow control valve 171 to a reservoir 178. The reservoirs 151, 178 can be a common deposit. The flow line 170 may be provided with an oil cooler 172 and a filter 172. The excess pressure in the system may be via the discharge valve 175. The valve 176 is a valve that controls the fan flow. cooler 172. During operation, the primary motor (eg, machine or electric motor) is driven, which operates the hydraulic pump 153 The hydraulic pump 153 initially rotates at a speed of approximately 1800 rpm and is run out. The hydraulic pump 153 can be one of Parker Model P1075XS (01 SRM5AEY0T00 CPB). A pumping cycle begins by providing the hydraulic piston pump 153 with a command using a controller (such as the controller 39 described herein with reference to Figures 1-42), with a run to the charge accumulator 160. When the accumulator 160 is fully charged, the directional valve 165 is energized, while maintaining the command to the pump 153. The oil 161 is then directed from the charged accumulator 160 through the flow control valve 164 and from the pump 153 to the end of rod 168 of the hydraulic cylinder 166. The valve 164 allows free flow in and restricted flow out to control the speed of the upward stroke of cylinder 166. Push rod 168 will then retract by raising the pump rope until a proximity switch is actuated by a coupling that is mounted on the rod end 169. The controller 39 then deenergizes the directional valve 165 and activates the proportional control valve 171 forcing it to open until the push rod 168 begins to fall at a desired speed. The degree of opening of the proportional control valve 171 controls how quickly the fluid leaves the cylinder body 167 and flows through the flow lines 158, 170 via the proportional flow control valve 171 and into the reservoir 178. Finally, the coupling at the rod end 169 reaches a second proximity switch, which is placed a short distance (eg, approximately .3048 meters) from the bottom of the travel of the push rod 168. When the coupling reaches to the second proximity switch, a current signal to the proportional control valve 171 is reduced, forcing the push rod 168 to decelerate until the coupling 20 on the rod end 169 of the push rod 168 reaches a third proximity switch. The electrical signal from the controller 39 will then be removed from the proportional control valve 171, then a voltage signal by the controller 39 will be sent to the directional valve 165, while maintaining the command at the pump 153 to continue pumping. The oil 161 that returns from the cylinder body 167 through the proportional control valve 171 passes through an oil cooler 172 and filter 173 before reaching the tank 178. During the time when the push rod 168 becomes With respect to the cylinder body 167, the oil 161 begins to be pumped by the pump 153 to the accumulator 160, charging the accumulator 160 for use in the next cycle. Accumulator 160 in this manner will have a pressure change of between about 35.15 kg / cm2, depending on the load of driving rod rope when it has been discharged transmitting fluid to cylinder 166 and a maximum pressure value of about 210.9 kg / cm2, depending on the load of driving rod rope when it is fully loaded by the pump 153 during the time when the push rod 168 extends and the cylinder 166 is drained. Figure 2 shows another embodiment of the apparatus of the present invention generally designated by the number 180. The oil well pump 189 is somewhat similar to the embodiment of Figure 1, with the removal of the bypass valve 174, which works now very carefully by the pump 184. The pump 184 is a extreme. Push rod 201 (and drive rods 228) rise and fall during operation as illustrated by arrow 18 in Figure 2. Flow line 203 is connected to flow line 191 in the triple connection tube of internal manifold 21. Flow line 203 communicates with proportional flow control valve 204, oil cooler / vented 205, filter 206 and reservoir 182. Discharge valve 207 is located in flow line 211 which is extends between the triple connection tube 189 and the reservoir 182. The discharge valve 207 allows excess pressure to be vented from the discharge flow line 187 through the flow line 211 to the reservoir 182. The valve 208 is a fan control valve that controls the flow of hydraulic fluid through the flow line 209 to the oil cooler / fan 205. The flow from line 209 is discharged into the tank 182. The mode of Figure 2 operates almost in the same way as the modality of Figure 1, subject to the elimination of the bypass valve 174, which now works taking care of the pump 184. Figures 3-6 show an alternate construction for the hydraulic cylinder and its connection to the well rope, pumping rope or rope of driving rod 228. In Figures 3 and 4, hydraulic cylinder 212 provides a cylinder body 213 and a push rod 214 that moves between upper and lower positions. The push rod 214 is fixed to the piston 237 and travels with he. In the lower end portion of the push rod 214 there is provided a female connector 215 to which an elongated polished rod 216 is connected. The frame 217 forms an abutting surface between the cylinder body 213 and a triple head connection tube 220. of well. The frame 217 has an upper end portion 218 to which the cylinder body 213 is mounted using its fin 231. The frame 217 has a lower end portion 219 that is attached to the triple header connection tube 220. The fin 231 can be mounted to the upper end portion 218 of the frame 217. A rod collar 232 is connected to extends downwardly from the fin 231. The head 233 forms an abutting surface between the cylinder body 213 and the fin. 231 as shown. A washer box 221 is mounted to the lower end portion of the collar 232. The washer box 221 has an inlet port 222 and an outlet port 223, allowing pumping of a scrubber fluid from an inward source 239 of the washer box and then it is discharged. A continuous stream of scrubber fluid (eg, hydraulic fluid) continuously cleans the polished rod 216, which is attached to the lower end portion of the push rod 214 e (n the female connector 215. The cylinder body 213 provides an upper port 234 and a lower port 235. The upper port 234 may be a pair e of a cover 236, which is attached to the upper end portion of the cylinder body 213, as shown. Figure 4 illustrates a condition where the piston 237 is being raised in the direction of the arrows 241. The lower port 235 is receiving inlet flow of the hydraulic fluid as indicated schematically by the arrow 240 in Figure 4. The fluid through Above the piston 237 is evacuated through the port 244 illustrated in Figure 5, the arrows 229 schematically indicate the flow direction of the oil as the piston 237, the push rod 214 and the polished rod 216 are raised. Coupling 227 is also raised as illustrated in Figure 5. In Figure 6, piston 237 is being lowered. The escapa uid escapes cylinder 212 through flow line 243 as illustrated by arrow 247 in Figure 6. Port 244 is simply a vent in the upper part of cylinder 212 as indicated by arrow 246 in FIG. Figure 6. A chain canister 238 is mounted on the lid 236. The canister 238 is a measuring apparatus that is commercially available from Parker (www.parker.com). The chain can 238 has a wire or wire 248 that is attached at 249 to the piston 237 or push rod 214. As the piston 237 rises and falls, the wire or wire 248 is unwound or retrieved by the chain canister. 238. The chain boat 238 is interconnected with suitable instrumentation with the programmable logic controller or PLC 39. In this way, the chain boat 238 replaces the limit switches of Figures 1 42.

A triple connection tube 224 can be mounted on the triple well head connection tube 220 below the frame 217. The triple flow connection tube 224 allows the oil being pumped from the well to be transmitted to a tank through flow line 225 as schematically indicated by arrow 230. Flow line 225 can be a vent line from the top of wellhead 220. An eruption impediment 226 can be placed below the triple flow connection tube 224. The polished rod 216, for example, can have a length of approximately 7.62-9.144 meters. In this way, the polished rod allows the provision of a very long pump stroke for pumping oil. Since the polished rod 216 extends through the washer box 221 and into the triple wellhead connection tube 220, the coupling 227 can be placed below the rash pusher 226 to connect the polished rod 216 to the drive rods or pump rope 228. The pump or cylinder arrangement of Figure 3 allows frame 217 to be relatively short, such as, for example, with a height of approximately 0.9144 meters. Figure 7 shows another alternate embodiment of the apparatus of the present invention designated generally at 250. The oil well pump 250 provides a bulge (eg, hydraulic piston pump) 253 that receives hydraulic fluid through a reservoir 251. and line / flow filter 252. The pump Hydraulic piston 253 is driven by a primary motor (for example, machine or electric motor). A manifold assembly 254 is shown surrounded by dotted lines in Figure 7. The manifold assembly 254 includes several flow lines as shown in Figure 7, directional valve 265, proportional flow control valve 271, flush valve 275 , and valves 274, 276 A discharge flow line 255 extends from the discharge side of the pump 253 to the internal manifold triple connection tube 257. The check valve 256 can be placed in the discharge flow line 255. The valves 265, 271, 274, 275, 276 may be a part (eg, internal) of the manifold 254. In the internal manifold triple connection tube 257, the flow lines 258, 259 communicate with the line of discharge flow 255. Flow line 259 extends through flow control valve 264 and into accumulator 260. Accumulator 260 has a petroleum containment portion 261 and a gas containment portion 262. In Figure 7, the arrow 263 indicates schematically the oil level 261 in the accumulator 260. The hydraulic cylinder 266 is connected to both the accumulator 260 and the pump 253 through the flow line 258. The hydraulic cylinder 266 includes a cylinder body 267 and an extendable push rod 268. The push rod 268 is movable between the upper retracted and lower extended positions. The push rod 268 provides a rod end 269 that is mounted with a coupling (e.g. embodiments of Figures 1-42 in Publication No. US 2007/0261841 A1, published November 15, 2007, and in Publication No. WO 2007/090193 A2, published August 9, 2007, both are incorporated herein for reference), which connects the push rod 268 to a well rope to the pumping head 21 (eg, drive rods) shown in Figures 1-42 in Publication No. US 2007/0261841 A1, published on November 15, 2007, and in Publication No. WO 2007/0090193 A2, published August 9, 2007. Flow line 270 extends from the internal manifold triple connection tube 277 through the valve of proportional flow control 271 to the reservoir 278. The reservoirs 251, 278 may be a common reservoir. The flow line 270 can be provided with an oil cooler 272 and filter 273. The excess pressure in the system can be mitigated using the discharge valve 275. The valve 276 is a valve that controls the flow of the fan / cooler 272 During operation, the primary motor (e.g., machine or electric motor) is driven, which operates the hydraulic pump 253. The hydraulic pump 253 initially rotates at a speed of approximately 1800 rpm and is without stroke. The hydraulic pump 253 can be one of Parker Model P1075XS (01 SRM5AEY0T00C PB). A pump cycle begins by providing the hydraulic piston pump 253 with a command using a controller (such as the controller 39 described herein with reference to Figures 1-42), with a run to the load accumulator 260. When the accumulator 260 is fully charged, the directional valve 265 is energized, while maintaining the command to the pump 253. The oil 261 is then directed from the charged accumulator 260 through the flow control valve 264 and from the pump 253 to the end of rod 268 of the hydraulic cylinder 266. The valve 264 allows free flow in and restricted flow out to control the speed of the upward stroke of cylinder 266. Push rod 268 will then retract by raising the pump rope until a proximity switch is actuated by a coupling that is mounted on the rod end 269. The controller 39 then deenergizes the directional valve 265 and activates the proportional control valve 271 forcing it to open until the push rod 268 begins to fall at a desired speed. The degree of opening of the proportional control valve 271 controls how quickly the fluid leaves the cylinder body 267 and flows through the flow lines 258, 270 via the proportional flow control valve 271 and into the tank 278 Finally, the coupling on the rod end 269 reaches a second proximity switch, which is positioned a short distance (eg, approximately .3048 meters) from the bottom of the stroke of the push rod 268. When the coupling reaches the second proximity switch! a current signal is reduced to the proportional control valve 271, forcing the push rod 268 to decelerate until the coupling 20 on the rod end 269 of the Push rod 268 reaches a third proximity switch. The electrical signal from the controller 39 will then be removed from the proportional control valve 271, then a voltage signal will be sent by the controller 39 to the directional valve 265, while maintaining the command at the pump 253 to continue pumping. The oil 261 that returns from the cylinder body 267 through the proportional control valve 271 passes through an oil cooler 272 and filter 273 before reaching tank 278. During the time when the push rod 268 extends with respect to cylinder body 267, oil 261 begins to be pumped by pump 253 to accumulator 260, charging accumulator 260 for use in the next cycle. The accumulator 260 in this manner will have a pressure change of between about 35.15 kg / cm2, depending on the load of driving rod cord when it has been discharged by transmitting fluid to the cylinder 266 and a maximum pressure value of about 210.9 kg / cm2, depending on the load of driving rod rope when it is fully loaded I by the pump 253 during the time in which the push rod 268 extends and the cylinder 266 is drained. A second accumulator 279, optional, is shown in Fig. 7, connected to the flow line 258 through the flow line | 283. As with the accumulator 260, the accumulator 279 has oil at 280 and gas at 281. The arrow 282 shows the oil surface 280. The accumulator 279 is used to remove a shock or driving in the operation of the hydraulic cylinder 266 to help protect the cylinder 266. The accumulator 279 is in the discharge line of the pump. The accumulator 279 may have a capacity of, for example, about 946, while the accumulator 260 may have a capacity of about 56.76 liters. The accumulator 260 can be, for example, an integrated accumulator with a capacity of about 56.76 liters, or it can be an accumulator with a capacity of about 18.92 to 28.38 liters, for example, with a gas bottle having around 37.84 liters, to give a total capacity of around 56/76 to 66.22 liters, for example. Also, accumulators 260 of smaller capacity, multiple, can be used instead of a storage 260 of higher capacity (due to space constraints, for example). In all accumulators, the oil may be, for example, hydraulic oil such as Exxon Humble Hydraulic H68 hydraulic oil, biodegradable oil, Sea Blue Hydraulic Oil 68 from Industrial Oils Unlimited of Arkansas; the gas may be, for example, nitrogen, carbon dioxide, or any other compressed inert gas preferably non-toxic and non-flammable, commercially available). Valve 274 is optional, although preferred. The following is a list of suitable parts and materials for use in the present invention.

LIST OF PARTS Part number Description 150 oil well pump 151 reservoir 152 line / inlet flow filter 153 hydraulic piston pump 154 manifold assembly 155 discharge flow line 156 check valve 57 multiple inlet triple connection pipe 158 flow line 159 flow line 160 accumulator 161 oil 162 gas 163 arrow 164 flow control valve 165 directional valve 166 hydraulic cylinder 167 cylinder body 168 push rod 169 rod end 170 flow line proportional flow control valve 172 oil cooler / fan 173 filter 174 bypass valve 175 safety valve 176 valve 177 triple internal manifold connection pipe 178 reservoir 180 oil well pump 181 reservoir 182 reservoir 183 internal manifold triple connection tube 184 pump 185 I f inflow / inlet flow 186 manifold 187 discharge flow line 188 triple connection pipe 189 triple connection pipe 190 check valve 191 flow line 192 flow line 193 accumulator 194 oil 195 gas 196 arrow 197 flow control valve 198 directional valve 199 hydraulic cylinder 200 cylinder body 201 push rod 202 rod end 203 flow line 204 proportional flow control valve 205 cooler / oil fan 206 filter 207 discharge valve 208 valve 209 flow line 210 triple connection pipe 211 flow line 212 hydraulic cylinder 213 cylinder body 214 push rod 215 female connector 216 polished rod 217 frame 218 end portion upper .219 lower end portion 220 triple sozo head connection pipe 221 washer box 222 inlet 223 outlet 224 triple flow connection pipe 225 flow line 226 eruption prevention 227 coupling 228 drive rod 229 flow line 230 arrow 231 fin 232 spindle collar 233 head 234 upper port 235 lower port 236 cover 237 piston 238 chain bucket 239 interior 240 arrow 241 arrow 242 arrow 243 flow line 244 flow line 245 arrow 246 arrow 247 arrow oil well pump line reservoir / inlet flow filter hydraulic piston pump manifold assembly discharge flow line check valve manifold connection pipe internal manifold flow line flow line accumulator oil gas arrow flow control valve directional valve cylinder body push rod rod end flow line proportional flow control valve cooler / oil fan filter bypass valve discharge valve 276 valve 277 multiple triple connection pipe, in terno 278 tank 279 accumulator 280 oil 281 gas 282 arrow 283 flow line 319 flow line All measurements described here are at standard temperature and pressure, at sea level on the ground, unless otherwise indicated. The above embodiments are presented by way of example only; the scope of the present invention will be limited only by the appended claims.

Claims (71)

1. CLAIMS 1. - A hydraulic oil well pumping apparatus, comprising: a) a hydraulic cylinder having a rod that is pyroly between upper and lower rod positions; b) a pumping chain that extends down from the rod, the chain is configured to extend into an oil well to pump oil from the well; c) a primary motor; d) a hydraulic pump that is energized by the primary motor, the pump having a compensator that regulates the pump flow and the pump pressure; e) a directional control valve that moves between open flow and closed flow positions; f) a flow line connecting the pump and the hydraulic cylinder, the control valve being placed in the flow line so that it can control the flow between the hydraulic pump and the hydraulic cylinder; g) a supply valve; h) a reservoir of hydraulic fluid to contain hydraulic fluid to be supplied to the hydraulic pump; i) a flow line that transmits hydraulic fluid] from the hydraulic cylinder to the reservoir through the proportioning valve; j) an electronic control system that controls the movement of the rod while moving between the upper and lower positions when controlling the control valve and the proportioning valve, wherein the control system includes an electrical signal that opens or closes the proportioning valve so that a rod movement control is enabled when the rod changes the direction in the lower position of the rod, and where the proportioning valve closes to lower the flow through it as the rod descends from above towards the lower position; and k) an accumulator that allows the pressure to be accumulated, the accumulator in fluid communication with the pump and the hydraulic cylinder. 2. A method for pumping oil from a pool of oil, comprising the steps of: a) providing a hydraulic cylinder having a rod that can be moved between upper and lower positions, a pumping chain that extends downwards From line A, the chain is configured to extend into an oil well to pump oil from the well, a primary motor, a hydraulic pump that is energized by the primary motor, the pump having a compensator that regulates the pump flow and increases the pump pressure; b) provide a directional control valve that moves between open flow and closed flow positions; c) connecting the pump and the hydraulic cylinder with a first flow line that transmits hydraulic fluid from the pump to the cylinder, the directional control valve being placed on the first flow line; d) control the flow between the hydraulic pump and the hydraulic cylinder with the directional control valve; e) a proportioning valve, a reservoir of hydraulic fluid to contain hydraulic fluid that will be supplied to the hydraulic pump, a second flow line that transmits hydraulic fluid from the hydraulic cylinder to the reservoir through the proportioning valve; and f) controlling the movement of the rod while moving between the upper and lower rod positions when controlling the control valve and the proportioning valve with a control system that generates an electrical signal that opens and closes the proportioning valve, enable a rod motion control when the rod changes the direction; and g) closing the proportioning valve to gradually reduce the flow volume of hydraulic fluid therethrough as the rod is lowered from the upper position to the lower position. 3. The method according to claim 2, wherein the control system includes at least one proximity switch, and further comprises the step of activating a closing of the proportioning valve to a selected position of the relative rod. to the proximity switch. 4. - The method according to claim 2, wherein the control system includes a plurality of proximity switches, and further comprises the step of general a signal when the rod assumes a selected position relative to each cylinder. 5. - The method according to claim 4, wherein the control system includes an electronic proximity switch and further comprises the step of activating the directional control valve with the proximity switch to move jentre positions of open flow and flow closed. 6. - The method according to claim 4, wherein the control system includes a proximity switch and further comprises the step of using the proximity switch to activate the directional control valve to move from an open flow position. to a closed flow position when the rod reaches the upper rod position relative to the cylinder. 7. - The method according to claim 4, wherein the control system includes a proximity switch and further comprises the step of using the proximity switch to activate the directional control valve to move from a closed flow position. to an open flow position when the rod reaches the lower rod position relative to the cylinder. 8. The method according to claim 2, wherein the The control system includes a plurality of three proximity switches and further comprises sending an electronic signal with a proximity switch when the rod assumes a selected position relative to each proximity switch. 9. The method according to claim 8, further comprising activating a proximity switch when the rod is in the upper rod position relative to the cylinder. 10. - The method according to claim 8, further comprising the step of activating a proximity switch when the rod is in the position of lower rod relative to the cylinder. 11. - The method according to claim 8, further comprising the step of activating a proximity switch when the rod is in a position that is between the upper and lower rod positions. 12. A method of pumping oil from a oil well, comprising the steps of: a) providing a hydraulic cylinder having a cylinder body and a piston that is movably mounted to the cylinder to travel between upper piston positions and lower, a pumping chain that extends down from the piston, the pumping chain is configured to extend into an oil well and includes one or more drive rods to pump oil from the well, a primary motor, and a hydraulic pump which is energized by the primary motor; b) provide a directional control valve qule moves between open flow and closed flow positions, and a first flow line connecting the pump and the hydraulic cylinder, the directional control valve being positioned to the valve flow in the first flow line; c) control the flow of hydraulic fluid between the hydraulic pump and the hydraulic cylinder with the directional control valve; d) providing a proportioning valve and a hydraulic fluid reservoir for containing hydraulic fluid to be supplied to the hydraulic pump; e) transmit hydraulic fluid from the hydraulic cylinder to the reservoir through the proportioning valve in a second flow line; and f) controlling the movement of the piston as it moves between the upper and lower piston positions by controlling the directional control valve and the proportioning valve, wherein a control system generates a signal that opens or closes the proportioning valve to a variable amount selected so as to allow a control of the speed of movement of the piston when the rod changes direction in the lower position of the piston; and g) gradually closing the proportioning valve to reduce the volume of flow therethrough as the piston descends from the upper to the lower position. 13. The method according to claim 12, wherein The control system includes at least one proximity interrupter which is located near the hydraulic cylinder and which further comprises the step of the proximity switch initiating a closure of the proportioning valve at a selected position of the piston relative to the cylinder. 14. - The method according to claim 12, wherein the control system includes a plurality of proximity switches and further comprises the step of a proximity switch that sends a signal when the piston assumes a selected position relative to the cylinder. 15. - The method according to claim 14, wherein the control system includes a proximity switch and which further comprises activating the directional control valve with a proximity switch to move between open flow and closed flow positions . 16. - The method according to claim 14, wherein the control system includes a proximity switch and further comprises activating the directional control valve to move from an open flow position to a closed flow position when the piston reaches a higher piston position. 17. The method according to claim 14, wherein the control system includes a proximity switch y, which further comprises activating the directional control valve to move from a closed flow position to an open flow position when the piston reaches a lower piston position. 18. - The method according to claim 12, wherein the electronic control system includes a plurality of three proximity switches and further comprises the step of sending a signal with a proximity switch when the piston assumes a selected position relative to each proximity switch. 19. - The method according to claim 18, further comprising the step of activating a proximity switch when the rod is in the upper piston position relative to the cylinder. 20. The method according to claim 18, further comprising the step of activating a proximity switch when the rod is in the lower piston position relative to the cylinder. 21. The method according to claim 18, further comprising the step of activating a proximity switch when the piston is in a position that is between the upper and lower rod positions. 22. A method for pumping oil from an oil well, comprising the steps of: a) providing a hydraulic cylinder having a cylinder variable that can move between upper and lower rod positions, the rod supports a chain of pumping that extends down from the rod, the chain being configured to extend into an oil well to pump oil from the hole; b) provide a primary motor and a hydraulic pump that is driven through the primary motor, said pump having a compensator that regulates the flow of the pump and the pressure of the pump; c) provide a directional control valve that moves between open flow and closed flow positions and a first flow line connecting the pump and the hydraulic cylinder, the control valve being positioned in the flow line so that it can control the flow of hydraulic fluid between the hydraulic pump and the hydraulic cylinder; d) provide a proportioning valve,! a reservoir of hydraulic fluid to contain hydraulic fluid will be supplied to the hydraulic pump and a second fluid flow that transmits hydraulic fluid from the cylinder to the reservoir through the proportioning valve; and e) control the speed of movement of the cylinder rod as it moves between the upper and lower positions with a control system, which includes controlling the directional control valve and the proportioning valve and in doing so the control system generates a signal that allows the partial closing of the proportioning valve, allowing the rod to decrease its speed of travel as it reaches the lower rod position. 23. The method according to claim 22, wherein the control system includes at least one proximity switch which is located near the hydraulic cylinder and which further comprises the step of activating a closure of the proportioning valve at a selected position of the rod relative to the proximity switch. 24. - The method according to claim 22, wherein the control system includes a plurality of proximity switches and which further comprises sending a signal col a proximity switch when the rod assumes a selected position relative to each proximity switch . 25. - The method according to claim 24, | which further comprises activating the directional control valve with a proximity switch to move between the open flow and closed flow positions. 26. The method according to claim 24, further comprising activating the directional control valve with a proximity switch to move from an open flow position to a closed flow position when the rod reaches the position of upper rod. 27. The method according to claim 24, further comprising activating the directional control valve with a proximity switch to move from a closed flow position to an open flow position when the rod reaches the position of lower rod. 28.- The method according to claim 22, where The control system includes a plurality of three proximity switches and further comprises sending a signal with a proximity switch when the rod assumes a selected position relative to each proximity switch. 29. - The method according to claim 22, further comprising activating a proximity switch when the rod is in the upper rod position. 30. - The method according to claim 22, | which further comprises activating a proximity switch when the rod is in the lower rod position. 31. - The method according to claim 22, | which further comprises activating a proximity switch when the rod is in a position that is between the upper and lower rod positions. 32.- A hydraulic oil reservoir pumping apparatus, comprising: a) a hydraulic cylinder having a rod that can be moved between a position of upper and lower rod; b) a pumping chain extending down from the rod, the pumping chain being configured to extend into an oil well to pump oil from the well; c) a primary motor; d) a hydraulic pump that is driven through the primary motor, said pump having a compensator that regulates the flow of the pump and the pressure of the pump; e) a directional control valve that moves between open flow and closed flow positions; f) an accumulator in fluid communication with the pump and the directional control valve; g) a flow line connecting the pump and the accumulator, the directional control valve being positioned in the flow line so that it can control the flow between the accumulator and the hydraulic cylinder; h) a proportioning valve; i) a reservoir of hydraulic fluid to contain hydraulic fluid that will be supplied to the hydraulic pump; j) a flow line that transmits hydraulic fluid from the hydraulic cylinder to the reservoir through the proportioning valve; and k) an electronic control system that controlled the movement of the rod as it moves between the upper and lower positions by controlling the control valve and the proportioning valve, wherein the control system includes an electrical signal that opens or closes the proportioning valve so that a control of the rod movement is allowed when the rod changes the direction in the lower position of the rod, where the proportioning valve is closed to decrease the flow therethrough as the rod Rod descends to the top position towards the bottom. 33.- The hydraulic oil well pumping apparatus of according to claim 32, wherein the electronic control system includes at least one proximity switch that activates a closure of the proportioning valve at a selected position of the rod relative to the switch. 34.- The hydraulic oil well pumping apparatus according to claim 32, wherein the electronic control system includes a plurality of proximity switches that each send an electronic signal when the rod assumes a selected position relative to the cylinder. . 35.- The hydraulic oil well pumping apparatus according to claim 34, wherein the electronic control system includes a proximity switch that activates the directional control valve to move between open flow and closed flow positions. The hydraulic oil well pumping apparatus according to claim 34, wherein the electronic control system includes a proximity switch that activates the directional control valve to move from an open flow position to a flow position closed when the rod reaches the upper rod position relative to the cylinder. 37.- The hydraulic oil well pumping apparatus according to claim 34, wherein the electronic control system includes a proximity switch that activates the directional control valve to move from a closed flow position to a position of open flow when the rod reaches the lower rod position relative to the cylinder. 38. - The hydraulic oil well pumping apparatus according to claim 32, wherein the electronic control system includes a plurality of three proximity switches that each send an electronic signal when the rod assumes a selected position relative to the cylinder. 39. - The hydraulic oil well pumping apparatus according to claim 32, wherein one of the proximity switches is activated when the rod is in the upper rod position relative to the cylinder. 40. The hydraulic oil well pumping apparatus according to claim 32, wherein one of the proximity switches is activated when the rod is in the position of the lower rod relative to the cylinder. 41. The hydraulic oil well pumping apparatus according to claim 32, wherein one of the proximity switches is activated when the rod is in a position that is between the upper and lower rod positions. 42. - The oil well pumping apparatus according to claim 32, wherein the hydraulic pump has a jet plate that is movable between the low volume and high volume positions. 43. - The oil well pumping apparatus according to claim 32, wherein the hydraulic pump has a jet plate that is movable between the low pressure and pressure positions. high. 44.- A method for pumping oil from a oil well, comprising the steps of: a) providing a hydraulic cylinder having a cylinder rod that is movable between upper and lower rod positions, the rod supporting a chain of pumping that extends down from the rod, the chain is configured to extend into an oil well to pump oil from the well; b) provide a primary motor and a hydraulic pump that is driven by the primary motor, said pump having a compensator that regulates the flow of the pump and the pressure of the pump; c) provide a directional control valve that moves between open flow and closed flow positions and a pipe system that interconnects the components of steps "a", "b", "c", and "d", the The first flow line connects the pump and the hydraulic cylinder, the control valve being placed in the flow line so that it can control the flow of hydraulic fluid between the hydraulic pump and the hydraulic cylinder; d) provide a proportioning valve in the pipe system, a hydraulic fluid reservoir for containing hydraulic fluid that will be supplied to the hydraulic pump and a second flow line that transmits hydraulic fluid from the hydraulic cylinder to the reservoir through the valve proportion; e) controlling the speed of movement of the cylinder rod as it moves between the upper and lower positions with a control system, which includes controlling the directional control valve and the proportioning valve and where the control system generates a signal allowing partial closing of the proportioning valve, allowing the rod to undergo its travel speed as it approaches the lower rod position; and f) where one or more accumulators reduce the shock in the pipe system. 45. - The method according to claim 32, wherein the control system includes at least one proximity switch which is placed near the hydraulic cylinder and which further comprises the step of activating a closing of the proportioning valve in a selected position of the rod relative to the proximity switch. 46. - The method according to claim 32, wherein the control system includes a plurality of proximity switches and which further comprises sending a signal cor a proximity switch when the rod assumes a selected position relative to each proximity switch . 47. - The method according to claim 34, | which also includes activating the directional control valve with a proximity switch to move between the luxury positions open and closed flow. 48. The method according to claim further comprising activating the directional control valve with a proximity switch to move from an open flow position to a closed flow position when the rod reaches the upper rod position. 49. The method according to claim 34 further comprising activating the directional control valve with a proximity switch to move from a closed flow position to an open flow position when the rod reaches the lower rod position. 50. - The method according to claim 32, wherein the control system includes a plurality of three proximity switches and which further comprises sending a signal when the rod assumes a selected position relative to a proximity switch. 51. - The method according to claim 32, | which further comprises activating a proximity switch when the rod is in the upper rod position. 52.- The method according to claim 32, | which further comprises activating a proximity switch when the rod is in the lower rod position. 53.- The method according to claim 32, | which further comprises activating a proximity switch when the rod is in a position that is between the rod positions superior and inferior. 54. - The method according to claim 32, wherein there are multiple accumulators in the pipe system. 55. - The method according to claim 42, wherein an accumulator is in a flow line that is between the pump and the directional control valve. 56. - The method according to claim 42, wherein an accumulator is between the directional control valve and the hydraulic cylinder. 57.- A method for pumping oil from an oil well, comprising the steps of: a) providing a hydraulic cylinder having a cylinder rod that is movable between upper and lower rod positions, the rod supporting a pumping chain which extends downwardly from the rod, the chain being configured to extend into an oil well for pumping oil from the well, a portion of the rod being a continuously lubricated polished rod; b) providing a primary motor and a hydraulic pump that is driven through the primary motor, said pump having a compensator that regulates the pump flow and the pump pressure; c) provide a directional control valve that moves between open flow and closed flow positions and a pipe system that interconnects the components of steps "a", "b", "c" and "d °, the first flow line connecting the pump and the hydraulic cylinder, the control valve being positioned in the flow line so that it can control the flow of hydraulic fluid between the hydraulic pump and the hydraulic cylinder; d) provide a proportioning valve in the piping system, a hydraulic fluid reservoir to contain hydraulic fluid that will be supplied to the hydraulic pump and a second flow line that transmits hydraulic fluid to the hydraulic cylinder to the reservoir through the proportioning valve; e) controlling the speed of movement of the cylinder rod as it moves between the upper and lower positions with a control system, which includes controlling the directional control valve and the proportioning valve and where the control system generates a signal that allows partial closing of the proportioning valve, which allows the rod to decrease its travel speed as it approaches the lower rod position; and f) where one or more accumulators reduces the shock in the pipe system. 58.- The method according to claim 57, wherein the control system includes at least one proximity switch that is placed near the hydraulic cylinder and further comprises the step of activating a closing of the proportioning valve in a selected position of the rod relative to the proximity switch. 59. - The method according to claim 57, wherein the control system includes a plurality of proximity switches and further comprises sending a signal with a proximity switch when the rod assumes a selected position relative to each proximity switch. 60. - The method according to claim 57, | which also comprises activating the directional control valve with a proximity switch to move between open flow and closed flow positions. 61.- The method according to claim further comprising activating the directional control valve with a proximity switch to move from an open flow position to a closed flow position when the rod reaches the upper rod position. 62.- The method according to claim 57, | which further comprises activating the directional control valve with a proximity switch to move from a closed flow position to an open flow position when the rod reaches the lower rod position. 63. The method according to claim 57, wherein the control system includes a plurality of three proximity switches and further comprises the step of sending a signal when the rod assumes a selected position relative to a proximity switch. 64.- The method according to claim 57, | that it also comprises activating a proximity switch when the rod is in the upper rod position. 65. - The method according to claim 57, further comprising activating a proximity switch when the rod is in the lower rod position. 66. - The method according to claim 57, | which further comprises activating a proximity switch when the rod is in a position that is between the upper and lower rod positions. 67.- The method according to claim 57, wherein there are multiple accumulators in the pipe system. 68.- The method according to claim 67, wherein an accumulator is in a flow line that is between the terminal and the directional control valve. 69.- The method according to claim 67, wherein an accumulator is between the directional control valve and the hydraulic cylinder. 70. - The method according to claim 67, further comprising using a chain can to make reference to the position of the rod. 71. - The inventions substantially as shown j and are described herein. SUMMARY A hydraulic oil well pumping apparatus preferably includes a hydraulic cylinder having a rod that is movable between upper and lower rod positions; a pumping rope extending downwardly from the rod, the rope which is configured to extend into an oil well to pump oil from the well; a primary engine; a hydraulic pump that is energized by the primary motor, said pump having a compensator that regulates the flow of the pump and the pressure of the pump; a valve for directional control that moves between open positions to the flow and closed to the flow; an accumulator in fluid communication with the pump and the directional control valve; a flow line that connects the pump and the accumulator, the directional control valve that is positioned in the flow line so that it can control the flow between the accumulator and the hydraulic cylinder; a proportioning valve; a reservoir of hydraulic fluid to contain hydraulic fluid to be supplied to the hydraulic pump; a flow line that transmits hydraulic fluid from the hydraulic cylinder to the reservoir via the proportioning valve; and an electronic control system that controls the movement of the rod as it moves between the upper or lower positions by controlling the control valve and the proportioning valve, wherein the control system includes an electrical signal that opens or closes the valve proportioning so that control of the movement of the rod is allowed when the rod changes direction, | in the lower position of the rod, and where the proportioning valve is regulated at lower flow through it as the rod is descending from the position towards the lower one.