CN2070374U - Multi-function underwell petroleum exploitation jet injector - Google Patents

Abstract

The utility model belongs to a petroleum exploitation under the oil well. The downhole measurement instrument can not be arranged on the existing oil production jet pump in oil production scene, which affects the accuracy and the integrality of the selected data. The utility model adopts a design that the center eyelet of the lower pump body is used as a through hole. A pressure bomb, a temperature gauge, a sampler, etc. Are arranged on the lower part of a pump core by a special joint under the throat base, which can directly measure the liquid pressure and the temperature of downhole oil layer or progress sample working. The utility model can also measure the pressure and the temperature of the liquid before the liquid flows into the pump body, the pressure and the temperature of mixture liquid, etc. The technology creates conditions for popularization and application of the jet pump, which insures the accuracy and the integrality of the selected data for the jet pump production.

Description

Oil jet pump under the multifunctional well

The utility model is a kind of improvement to the down-hole oil production Jet injector.

Utilize various oil recovery machiners at present in the oil recovery process of oil field, Jet injector promptly is wherein a kind of.It is a kind of by upper pump casing, the lower pump body welding connects the pump housing that forms, upper valve ball, upper valve base are installed in to be salvaged in the head cavity, the fishing head lower end connects with nozzle carrier by screw thread, the internal thread that the trunnion seat that installs the nozzle carrier of nozzle and mounted trunnion is installed in the joint sleeve upper and lower end is respectively buckled, and seal ring is installed in respectively in the seal groove of nozzle carrier and trunnion seat.Lower pump body is obstructed inner chamber on central axial direction, and lower valve ball and lower valve base are installed in the lower pump body lower end.When recovering the oil with the down-hole Jet injector, because the restriction of this body structure of Jet injector, well recovery parameters such as the pressure of measuring downhole fluid, temperature can not install instruments, therefore just can not collect complete oil well raw data, directly influence analysis and the judgement of geology, oil recovery personnel, also have a strong impact on application and development that down-hole body stream pump recovers the oil the oil well production situation.

CN86206412 utility model patent file provides the device of flow stream pressure under a kind of measuring well, is by the impulse duct down-hole flow stream pressure to be directed to the top of Jet injector fuse, utilizes pressure bomb to come the pressure of measuring recording down-hole liquid stream.And the diameter in this impulse duct is less, and needs liquid stream is directed to the top, apart from certain distance is arranged, results in blockage easily, and the measurement and the record that influence pressure normally carry out.

The purpose of this utility model is in order to overcome not some downhole data of energy measurement of present jet injector oil production, and the deficiency of CN86206412 utility model patent and a kind of below that pressure bomb, thermometer, sample collector can be equipped with the jet fuse of designing, flow stream pressure, temperature under the direct measuring well, and to oil jet pump under a kind of multifunctional well of down-hole liquid stream sampling.

The technical solution of the utility model is: a kind of by upper pump casing.Lower pump body, fishing head, upper valve ball, upper valve base, nozzle carrier, nozzle, trunnion, the trunnion seat, joint sleeve, last sealing, lower seal, lower valve ball, the down-hole oil production Jet injector that lower valve base etc. constitute, its special way is that the central aperture with lower pump body is designed to a through hole, trunnion seat below is by screwed connection one special joint, the special joint lower end can connect pressure bomb by screw thread, thermometer, sample collector etc., the below of lower pump body connects a joint short oil pipe by box cupling, short oil pipe lower end connects a CONCENTRIC REDUCER, lower valve base and lower valve ball are installed in the CONCENTRIC REDUCER, and the CONCENTRIC REDUCER lower end is again by the screwed connection tail pipe.

Special joint has two kinds, as shown in the figure a kind of, its Lower Half outer surface has 1-3 road sealing groove, 3-8 inclined hole arranged at its top of interior dress " 0 " RunddichtringO, can measure the data such as pressure, temperature of oil reservoir liquid after this kind joint lower end installs instruments by screw thread, the sample that sample collector extracts reservoir fluid also can be installed.

Another kind of special joint is to process tracting pressuring hole on preceding a kind of basis, after the lower end of special joint installs instruments, can measure the data such as pressure, temperature of the mixing material that comes from trunnion.

Fishing head is replaced by upper connection, can connects surveying instrument, in order to measure parameters such as the pressure of power liquid before entering the Jet injector nozzle, temperature at screw thread place, the upper end of upper connection.

The advantage of this Jet injector is that multiple surveying instrument can be installed, and multiple fluid parameter under the measuring well provides definite data for analyzing the oil well production situation.

Fig. 1 is the overall assembling section of this Jet injector.

Fig. 2 is this Jet injector first half assembling section.

Fig. 3 is this Jet injector Lower Half assembling section.

Fig. 4 is that second kind of special joint partly cuts open figure.

Fig. 5 is the upper connection sectional drawing.

Below in conjunction with accompanying drawing this model utility is made and to specify: the upper end of upper pump casing 1 is that inner oil tube is buckled, and the lower end is centering boss rank and welding chamfering, and the middle part is a through hole.The upper end of lower pump body 12 is centering concave station rank and welding chamfering, the center is the big slightly through hole of a middle part diameter along axial direction, have the oil outlet angled at lower pump body 12 middle parts with central shaft, has oil inlet hole with the parallel axes direction, the lower end of lower pump body 12 is an outer screw thread, is welded into a whole after the centering convex-concave step centering with last lower pump body end.Lower valve base 19 is installed in the CONCENTRIC REDUCER 17 by screw thread, CONCENTRIC REDUCER 17 lower ends are installed on the tail pipe 20 by screw thread, lower valve ball 18 is contained on the lower valve base 19, the upper end internal thread that the oil pipe 16 of suitable length is connected on CONCENTRIC REDUCER 17 is buckled, and by box cupling 15 lower end of oil pipe 16 with lower pump body 12 is linked together.Then with the upper end of upper pump casing 1 by screwed connection on oil pipe, remove the downhole designs position with oil pipe one.

The top of fishing head 1 is a shaft-like Cylinder, and its top is the cone that has a small stair, and the inside of bottom is a cavity, and shoulder has through hole, and the underpart has interior screw thread.The upper end of nozzle carrier 4 has outer screw thread, and the lower end has interior outer screw thread, has seal groove on the outer surface at middle part, and inside is a through hole, and the through hole first half has certain taper.The outer surface middle part of nozzle 6 has screw thread, and inside is a taper hole, and the underpart of endoporus is hole, a garden, and its diameter length is the 2-8 millimeter.The two ends of joint sleeve 7 are interior screw thread, and the middle part has through hole.Trunnion, outer surface be outer screw thread, inside is the through hole of being made up of chamfering, hole, garden, taper hole, interior outer screw thread is arranged at trunnion seat 18 tops, the bottom is an outer screw thread, the middle part outer surface has seal groove, the bottom endoporus is a taper hole.The upper end of special joint 13 has interior screw thread, and inclined hole 132 makes inside and outside UNICOM, has seal groove on the outer surface of special joint, and the lower end has interior screw thread.

With upper valve ball 2, pack into the inner chamber of fishing head 1 of upper valve base 3, the lower end of fishing head 1 connects by screw thread and nozzle carrier 4, the lower end that installs the nozzle carrier 4 of nozzle 6 is connected by the upper end of screw thread with joint sleeve 7, the upper end that installs the trunnion seat 10 of trunnion 9 is connected with the lower end of joint sleeve 7, special joint 13 is connected in the lower end of trunnion seat 10 by screw thread, more than form the Jet injector fuse, at last with surveying instrument 14 (bottom hole temperature bombs, pressure bomb or downhole sampler) be installed in the lower end of special joint 13 by screw thread, at nozzle carrier 4, trunnion 10, install " 0 " RunddichtringO on the special joint 13, check errorless after, can put in the pump housing of down-hole Jet injector together with surveying instrument by oil pipe from well head pump element, changed flow process (direct circulation), the pump that turns on the power can begin production extraction liquid.This moment, surveying instrument can write down pressure, the temperature of down-hole liquid automatically, perhaps sampling.

Special joint 13 ' be that special joint 13 has been set up tracting pressuring hole 13b.When needs are measured mixed pressure, the temperature of power liquid and downhole fluid, the special joint on the pump element 13 can be changed to 13 ', load onto corresponding surveying instrument, press preceding method again and drop into the pump housing, changed flow process, the pump production that turns on the power, instrument can write down corresponding data automatically simultaneously.

The upper stem Cylinder part external diameter of fishing head 1 is strengthened, the interior screw thread that adapts with surveying instrument is processed in inside, make inner chamber form through hole, promptly form upper connection 21 (Fig. 5), during data such as the pressure before needs measurement power liquid enters the pump housing, temperature, fishing head 1 can be changed to upper connection 21, load onto corresponding surveying instrument in the upper end of upper connection 21, drop in the pump housing of down-hole, changed flow process, the pump that turns on the power is produced simultaneously and can be write down corresponding data.

When changing flow process into anti-circulation to certain hour (as timing) according to instrument, under the effect of power liquid, pump element and instrument are enumerated well head together, take off instrument, take out recording paper strip.

Claims (3)

1, a kind of by upper pump casing, the lower pump body welding connects the pump housing that forms, upper valve ball, upper valve base is installed in to be salvaged in the head cavity, the fishing head lower end connects with nozzle carrier by screw thread, the nozzle carrier that installs nozzle is buckled with the internal thread that the trunnion seat that installs trunnion is installed in the joint sleeve upper and lower end respectively, seal ring is installed in respectively in the seal groove of nozzle carrier and trunnion seat, lower valve ball and lower valve base are installed in oil jet pump under the multifunctional well that is constituted below the pump housing, it is characterized in that: the lower pump body center has a through hole, trunnion seat lower end connects a special joint by screw thread, this special joint lower external face has the 1-3 road sealing groove, dress " 0 " RunddichtringO in the groove, 3-8 inclined hole arranged at its top, the lower end has the screw thread that adapts with surveying instrument, and the lower pump body below connects a short oil pipe by box cupling, and short oil pipe lower end connects CONCENTRIC REDUCER, lower valve base and lower valve ball are installed in the CONCENTRIC REDUCER, and the CONCENTRIC REDUCER lower end can connect tail pipe.

2, according to oil jet pump under claims 1 described multifunctional well, it is characterized in that: have tracting pressuring hole on the special joint.

3, according to oil jet pump under claims 1 or the 2 described multifunctional wells, it is characterized by: the shaft-like Cylinder part external diameter on fishing head top is strengthened, and the interior screw thread that adapts with surveying instrument is processed in inside, upper end, makes inner chamber form through hole.

Images